Serveur d'exploration sur les relations entre la France et l'Australie

Attention, ce site est en cours de développement !
Attention, site généré par des moyens informatiques à partir de corpus bruts.
Les informations ne sont donc pas validées.

Legionella pneumophila Strain 130b Evades Macrophage Cell Death Independent of the Effector SidF in the Absence of Flagellin

Identifieur interne : 000460 ( Pmc/Checkpoint ); précédent : 000459; suivant : 000461

Legionella pneumophila Strain 130b Evades Macrophage Cell Death Independent of the Effector SidF in the Absence of Flagellin

Auteurs : Mary Speir [Australie] ; Adam Vogrin [Australie] ; Azadeh Seidi [Australie] ; Gilu Abraham [Australie] ; Stéphane Hunot [États-Unis, France] ; Qingqing Han [États-Unis] ; Gerald W. Dorn [États-Unis] ; Seth L. Masters [Australie] ; Richard A. Flavell [États-Unis] ; James E. Vince [Australie] ; Thomas Naderer [Australie]

Source :

RBID : PMC:5311068

Abstract

The human pathogen Legionella pneumophila must evade host cell death signaling to enable replication in lung macrophages and to cause disease. After bacterial growth, however, L. pneumophila is thought to induce apoptosis during egress from macrophages. The bacterial effector protein, SidF, has been shown to control host cell survival and death by inhibiting pro-apoptotic BNIP3 and BCL-RAMBO signaling. Using live-cell imaging to follow the L. pneumophila-macrophage interaction, we now demonstrate that L. pneumophila evades host cell apoptosis independent of SidF. In the absence of SidF, L. pneumophila was able to replicate, cause loss of mitochondria membrane potential, kill macrophages, and establish infections in lungs of mice. Consistent with this, deletion of BNIP3 and BCL-RAMBO did not affect intracellular L. pneumophila replication, macrophage death rates, and in vivo bacterial virulence. Abrogating mitochondrial cell death by genetic deletion of the effectors of intrinsic apoptosis, BAX, and BAK, or the regulator of mitochondrial permeability transition pore formation, cyclophilin-D, did not affect bacterial growth or the initial killing of macrophages. Loss of BAX and BAK only marginally limited the ability of L. pneumophila to efficiently kill all macrophages over extended periods. L. pneumophila induced killing of macrophages was delayed in the absence of capsase-11 mediated pyroptosis. Together, our data demonstrate that L. pneumophila evades host cell death responses independently of SidF during replication and can induce pyroptosis to kill macrophages in a timely manner.


Url:
DOI: 10.3389/fcimb.2017.00035
PubMed: 28261564
PubMed Central: 5311068


Affiliations:


Links toward previous steps (curation, corpus...)


Links to Exploration step

PMC:5311068

Le document en format XML

<record>
<TEI>
<teiHeader>
<fileDesc>
<titleStmt>
<title xml:lang="en">
<italic>Legionella pneumophila</italic>
Strain 130b Evades Macrophage Cell Death Independent of the Effector SidF in the Absence of Flagellin</title>
<author>
<name sortKey="Speir, Mary" sort="Speir, Mary" uniqKey="Speir M" first="Mary" last="Speir">Mary Speir</name>
<affiliation wicri:level="1">
<nlm:aff id="aff1">
<institution>Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University</institution>
<country>Clayton, VIC, Australia</country>
</nlm:aff>
<country xml:lang="fr">Australie</country>
<wicri:regionArea>Department of Medical Microbiology and Virology, National Health Laboratory Service/University of the Free State, Bloemfontein 9301</wicri:regionArea>
<wicri:noRegion>Bloemfontein 9301</wicri:noRegion>
</affiliation>
</author>
<author>
<name sortKey="Vogrin, Adam" sort="Vogrin, Adam" uniqKey="Vogrin A" first="Adam" last="Vogrin">Adam Vogrin</name>
<affiliation wicri:level="1">
<nlm:aff id="aff1">
<institution>Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University</institution>
<country>Clayton, VIC, Australia</country>
</nlm:aff>
<country xml:lang="fr">Australie</country>
<wicri:regionArea>Department of Medical Microbiology and Virology, National Health Laboratory Service/University of the Free State, Bloemfontein 9301</wicri:regionArea>
<wicri:noRegion>Bloemfontein 9301</wicri:noRegion>
</affiliation>
</author>
<author>
<name sortKey="Seidi, Azadeh" sort="Seidi, Azadeh" uniqKey="Seidi A" first="Azadeh" last="Seidi">Azadeh Seidi</name>
<affiliation wicri:level="1">
<nlm:aff id="aff1">
<institution>Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University</institution>
<country>Clayton, VIC, Australia</country>
</nlm:aff>
<country xml:lang="fr">Australie</country>
<wicri:regionArea>Department of Medical Microbiology and Virology, National Health Laboratory Service/University of the Free State, Bloemfontein 9301</wicri:regionArea>
<wicri:noRegion>Bloemfontein 9301</wicri:noRegion>
</affiliation>
</author>
<author>
<name sortKey="Abraham, Gilu" sort="Abraham, Gilu" uniqKey="Abraham G" first="Gilu" last="Abraham">Gilu Abraham</name>
<affiliation wicri:level="1">
<nlm:aff id="aff1">
<institution>Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University</institution>
<country>Clayton, VIC, Australia</country>
</nlm:aff>
<country xml:lang="fr">Australie</country>
<wicri:regionArea>Department of Medical Microbiology and Virology, National Health Laboratory Service/University of the Free State, Bloemfontein 9301</wicri:regionArea>
<wicri:noRegion>Bloemfontein 9301</wicri:noRegion>
</affiliation>
</author>
<author>
<name sortKey="Hunot, Stephane" sort="Hunot, Stephane" uniqKey="Hunot S" first="Stéphane" last="Hunot">Stéphane Hunot</name>
<affiliation wicri:level="1">
<nlm:aff id="aff2">
<institution>Department of Immunobiology, Howard Hughes Medical Institute, Yale University School of Medicine</institution>
<country>New Haven, CT, USA</country>
</nlm:aff>
<country xml:lang="fr">États-Unis</country>
<wicri:regionArea>Department of Medical Microbiology and Virology, National Health Laboratory Service/University of the Free State, Bloemfontein 9301</wicri:regionArea>
<wicri:noRegion>Bloemfontein 9301</wicri:noRegion>
</affiliation>
<affiliation wicri:level="1">
<nlm:aff id="aff3">
<institution>Centre National de la Recherche Scientifique, Institut National de la Santé et de la Recherche Médicale, Institut du Cerveau et la Moelle - Hôpital Pitié-Salpêtrière, Boulevard de l'hôpital, Sorbonne Universités, UPMC Univ Paris 06</institution>
<country>Paris, France</country>
</nlm:aff>
<country xml:lang="fr">France</country>
<wicri:regionArea>Department of Medical Microbiology and Virology, National Health Laboratory Service/University of the Free State, Bloemfontein 9301</wicri:regionArea>
<wicri:noRegion>Bloemfontein 9301</wicri:noRegion>
<wicri:noRegion>Bloemfontein 9301</wicri:noRegion>
</affiliation>
</author>
<author>
<name sortKey="Han, Qingqing" sort="Han, Qingqing" uniqKey="Han Q" first="Qingqing" last="Han">Qingqing Han</name>
<affiliation wicri:level="1">
<nlm:aff id="aff2">
<institution>Department of Immunobiology, Howard Hughes Medical Institute, Yale University School of Medicine</institution>
<country>New Haven, CT, USA</country>
</nlm:aff>
<country xml:lang="fr">États-Unis</country>
<wicri:regionArea>Department of Medical Microbiology and Virology, National Health Laboratory Service/University of the Free State, Bloemfontein 9301</wicri:regionArea>
<wicri:noRegion>Bloemfontein 9301</wicri:noRegion>
</affiliation>
</author>
<author>
<name sortKey="Dorn, Gerald W" sort="Dorn, Gerald W" uniqKey="Dorn G" first="Gerald W." last="Dorn">Gerald W. Dorn</name>
<affiliation wicri:level="1">
<nlm:aff id="aff4">
<institution>Department of Medicine, Center for Pharmacogenomics, Washington University School of Medicine</institution>
<country>St. Louis, MO, USA</country>
</nlm:aff>
<country xml:lang="fr">États-Unis</country>
<wicri:regionArea>Department of Medical Microbiology and Virology, National Health Laboratory Service/University of the Free State, Bloemfontein 9301</wicri:regionArea>
<wicri:noRegion>Bloemfontein 9301</wicri:noRegion>
</affiliation>
</author>
<author>
<name sortKey="Masters, Seth L" sort="Masters, Seth L" uniqKey="Masters S" first="Seth L." last="Masters">Seth L. Masters</name>
<affiliation wicri:level="1">
<nlm:aff id="aff5">
<institution>Walter and Eliza Hall Institute of Medical Research</institution>
<country>Parkville, VIC, Australia</country>
</nlm:aff>
<country xml:lang="fr">Australie</country>
<wicri:regionArea>Department of Medical Microbiology and Virology, National Health Laboratory Service/University of the Free State, Bloemfontein 9301</wicri:regionArea>
<wicri:noRegion>Bloemfontein 9301</wicri:noRegion>
</affiliation>
<affiliation wicri:level="1">
<nlm:aff id="aff6">
<institution>Department of Medical Biology, University of Melbourne</institution>
<country>Parkville, VIC, Australia</country>
</nlm:aff>
<country xml:lang="fr">Australie</country>
<wicri:regionArea>Department of Medical Microbiology and Virology, National Health Laboratory Service/University of the Free State, Bloemfontein 9301</wicri:regionArea>
<wicri:noRegion>Bloemfontein 9301</wicri:noRegion>
</affiliation>
</author>
<author>
<name sortKey="Flavell, Richard A" sort="Flavell, Richard A" uniqKey="Flavell R" first="Richard A." last="Flavell">Richard A. Flavell</name>
<affiliation wicri:level="1">
<nlm:aff id="aff2">
<institution>Department of Immunobiology, Howard Hughes Medical Institute, Yale University School of Medicine</institution>
<country>New Haven, CT, USA</country>
</nlm:aff>
<country xml:lang="fr">États-Unis</country>
<wicri:regionArea>Department of Medical Microbiology and Virology, National Health Laboratory Service/University of the Free State, Bloemfontein 9301</wicri:regionArea>
<wicri:noRegion>Bloemfontein 9301</wicri:noRegion>
</affiliation>
</author>
<author>
<name sortKey="Vince, James E" sort="Vince, James E" uniqKey="Vince J" first="James E." last="Vince">James E. Vince</name>
<affiliation wicri:level="1">
<nlm:aff id="aff5">
<institution>Walter and Eliza Hall Institute of Medical Research</institution>
<country>Parkville, VIC, Australia</country>
</nlm:aff>
<country xml:lang="fr">Australie</country>
<wicri:regionArea>Department of Medical Microbiology and Virology, National Health Laboratory Service/University of the Free State, Bloemfontein 9301</wicri:regionArea>
<wicri:noRegion>Bloemfontein 9301</wicri:noRegion>
</affiliation>
<affiliation wicri:level="1">
<nlm:aff id="aff6">
<institution>Department of Medical Biology, University of Melbourne</institution>
<country>Parkville, VIC, Australia</country>
</nlm:aff>
<country xml:lang="fr">Australie</country>
<wicri:regionArea>Department of Medical Microbiology and Virology, National Health Laboratory Service/University of the Free State, Bloemfontein 9301</wicri:regionArea>
<wicri:noRegion>Bloemfontein 9301</wicri:noRegion>
</affiliation>
</author>
<author>
<name sortKey="Naderer, Thomas" sort="Naderer, Thomas" uniqKey="Naderer T" first="Thomas" last="Naderer">Thomas Naderer</name>
<affiliation wicri:level="1">
<nlm:aff id="aff1">
<institution>Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University</institution>
<country>Clayton, VIC, Australia</country>
</nlm:aff>
<country xml:lang="fr">Australie</country>
<wicri:regionArea>Department of Medical Microbiology and Virology, National Health Laboratory Service/University of the Free State, Bloemfontein 9301</wicri:regionArea>
<wicri:noRegion>Bloemfontein 9301</wicri:noRegion>
</affiliation>
</author>
</titleStmt>
<publicationStmt>
<idno type="wicri:source">PMC</idno>
<idno type="pmid">28261564</idno>
<idno type="pmc">5311068</idno>
<idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5311068</idno>
<idno type="RBID">PMC:5311068</idno>
<idno type="doi">10.3389/fcimb.2017.00035</idno>
<date when="2017">2017</date>
<idno type="wicri:Area/Pmc/Corpus">002483</idno>
<idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Corpus" wicri:corpus="PMC">002483</idno>
<idno type="wicri:Area/Pmc/Curation">002333</idno>
<idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Curation">002333</idno>
<idno type="wicri:Area/Pmc/Checkpoint">000460</idno>
<idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Checkpoint">000460</idno>
</publicationStmt>
<sourceDesc>
<biblStruct>
<analytic>
<title xml:lang="en" level="a" type="main">
<italic>Legionella pneumophila</italic>
Strain 130b Evades Macrophage Cell Death Independent of the Effector SidF in the Absence of Flagellin</title>
<author>
<name sortKey="Speir, Mary" sort="Speir, Mary" uniqKey="Speir M" first="Mary" last="Speir">Mary Speir</name>
<affiliation wicri:level="1">
<nlm:aff id="aff1">
<institution>Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University</institution>
<country>Clayton, VIC, Australia</country>
</nlm:aff>
<country xml:lang="fr">Australie</country>
<wicri:regionArea>Department of Medical Microbiology and Virology, National Health Laboratory Service/University of the Free State, Bloemfontein 9301</wicri:regionArea>
<wicri:noRegion>Bloemfontein 9301</wicri:noRegion>
</affiliation>
</author>
<author>
<name sortKey="Vogrin, Adam" sort="Vogrin, Adam" uniqKey="Vogrin A" first="Adam" last="Vogrin">Adam Vogrin</name>
<affiliation wicri:level="1">
<nlm:aff id="aff1">
<institution>Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University</institution>
<country>Clayton, VIC, Australia</country>
</nlm:aff>
<country xml:lang="fr">Australie</country>
<wicri:regionArea>Department of Medical Microbiology and Virology, National Health Laboratory Service/University of the Free State, Bloemfontein 9301</wicri:regionArea>
<wicri:noRegion>Bloemfontein 9301</wicri:noRegion>
</affiliation>
</author>
<author>
<name sortKey="Seidi, Azadeh" sort="Seidi, Azadeh" uniqKey="Seidi A" first="Azadeh" last="Seidi">Azadeh Seidi</name>
<affiliation wicri:level="1">
<nlm:aff id="aff1">
<institution>Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University</institution>
<country>Clayton, VIC, Australia</country>
</nlm:aff>
<country xml:lang="fr">Australie</country>
<wicri:regionArea>Department of Medical Microbiology and Virology, National Health Laboratory Service/University of the Free State, Bloemfontein 9301</wicri:regionArea>
<wicri:noRegion>Bloemfontein 9301</wicri:noRegion>
</affiliation>
</author>
<author>
<name sortKey="Abraham, Gilu" sort="Abraham, Gilu" uniqKey="Abraham G" first="Gilu" last="Abraham">Gilu Abraham</name>
<affiliation wicri:level="1">
<nlm:aff id="aff1">
<institution>Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University</institution>
<country>Clayton, VIC, Australia</country>
</nlm:aff>
<country xml:lang="fr">Australie</country>
<wicri:regionArea>Department of Medical Microbiology and Virology, National Health Laboratory Service/University of the Free State, Bloemfontein 9301</wicri:regionArea>
<wicri:noRegion>Bloemfontein 9301</wicri:noRegion>
</affiliation>
</author>
<author>
<name sortKey="Hunot, Stephane" sort="Hunot, Stephane" uniqKey="Hunot S" first="Stéphane" last="Hunot">Stéphane Hunot</name>
<affiliation wicri:level="1">
<nlm:aff id="aff2">
<institution>Department of Immunobiology, Howard Hughes Medical Institute, Yale University School of Medicine</institution>
<country>New Haven, CT, USA</country>
</nlm:aff>
<country xml:lang="fr">États-Unis</country>
<wicri:regionArea>Department of Medical Microbiology and Virology, National Health Laboratory Service/University of the Free State, Bloemfontein 9301</wicri:regionArea>
<wicri:noRegion>Bloemfontein 9301</wicri:noRegion>
</affiliation>
<affiliation wicri:level="1">
<nlm:aff id="aff3">
<institution>Centre National de la Recherche Scientifique, Institut National de la Santé et de la Recherche Médicale, Institut du Cerveau et la Moelle - Hôpital Pitié-Salpêtrière, Boulevard de l'hôpital, Sorbonne Universités, UPMC Univ Paris 06</institution>
<country>Paris, France</country>
</nlm:aff>
<country xml:lang="fr">France</country>
<wicri:regionArea>Department of Medical Microbiology and Virology, National Health Laboratory Service/University of the Free State, Bloemfontein 9301</wicri:regionArea>
<wicri:noRegion>Bloemfontein 9301</wicri:noRegion>
<wicri:noRegion>Bloemfontein 9301</wicri:noRegion>
</affiliation>
</author>
<author>
<name sortKey="Han, Qingqing" sort="Han, Qingqing" uniqKey="Han Q" first="Qingqing" last="Han">Qingqing Han</name>
<affiliation wicri:level="1">
<nlm:aff id="aff2">
<institution>Department of Immunobiology, Howard Hughes Medical Institute, Yale University School of Medicine</institution>
<country>New Haven, CT, USA</country>
</nlm:aff>
<country xml:lang="fr">États-Unis</country>
<wicri:regionArea>Department of Medical Microbiology and Virology, National Health Laboratory Service/University of the Free State, Bloemfontein 9301</wicri:regionArea>
<wicri:noRegion>Bloemfontein 9301</wicri:noRegion>
</affiliation>
</author>
<author>
<name sortKey="Dorn, Gerald W" sort="Dorn, Gerald W" uniqKey="Dorn G" first="Gerald W." last="Dorn">Gerald W. Dorn</name>
<affiliation wicri:level="1">
<nlm:aff id="aff4">
<institution>Department of Medicine, Center for Pharmacogenomics, Washington University School of Medicine</institution>
<country>St. Louis, MO, USA</country>
</nlm:aff>
<country xml:lang="fr">États-Unis</country>
<wicri:regionArea>Department of Medical Microbiology and Virology, National Health Laboratory Service/University of the Free State, Bloemfontein 9301</wicri:regionArea>
<wicri:noRegion>Bloemfontein 9301</wicri:noRegion>
</affiliation>
</author>
<author>
<name sortKey="Masters, Seth L" sort="Masters, Seth L" uniqKey="Masters S" first="Seth L." last="Masters">Seth L. Masters</name>
<affiliation wicri:level="1">
<nlm:aff id="aff5">
<institution>Walter and Eliza Hall Institute of Medical Research</institution>
<country>Parkville, VIC, Australia</country>
</nlm:aff>
<country xml:lang="fr">Australie</country>
<wicri:regionArea>Department of Medical Microbiology and Virology, National Health Laboratory Service/University of the Free State, Bloemfontein 9301</wicri:regionArea>
<wicri:noRegion>Bloemfontein 9301</wicri:noRegion>
</affiliation>
<affiliation wicri:level="1">
<nlm:aff id="aff6">
<institution>Department of Medical Biology, University of Melbourne</institution>
<country>Parkville, VIC, Australia</country>
</nlm:aff>
<country xml:lang="fr">Australie</country>
<wicri:regionArea>Department of Medical Microbiology and Virology, National Health Laboratory Service/University of the Free State, Bloemfontein 9301</wicri:regionArea>
<wicri:noRegion>Bloemfontein 9301</wicri:noRegion>
</affiliation>
</author>
<author>
<name sortKey="Flavell, Richard A" sort="Flavell, Richard A" uniqKey="Flavell R" first="Richard A." last="Flavell">Richard A. Flavell</name>
<affiliation wicri:level="1">
<nlm:aff id="aff2">
<institution>Department of Immunobiology, Howard Hughes Medical Institute, Yale University School of Medicine</institution>
<country>New Haven, CT, USA</country>
</nlm:aff>
<country xml:lang="fr">États-Unis</country>
<wicri:regionArea>Department of Medical Microbiology and Virology, National Health Laboratory Service/University of the Free State, Bloemfontein 9301</wicri:regionArea>
<wicri:noRegion>Bloemfontein 9301</wicri:noRegion>
</affiliation>
</author>
<author>
<name sortKey="Vince, James E" sort="Vince, James E" uniqKey="Vince J" first="James E." last="Vince">James E. Vince</name>
<affiliation wicri:level="1">
<nlm:aff id="aff5">
<institution>Walter and Eliza Hall Institute of Medical Research</institution>
<country>Parkville, VIC, Australia</country>
</nlm:aff>
<country xml:lang="fr">Australie</country>
<wicri:regionArea>Department of Medical Microbiology and Virology, National Health Laboratory Service/University of the Free State, Bloemfontein 9301</wicri:regionArea>
<wicri:noRegion>Bloemfontein 9301</wicri:noRegion>
</affiliation>
<affiliation wicri:level="1">
<nlm:aff id="aff6">
<institution>Department of Medical Biology, University of Melbourne</institution>
<country>Parkville, VIC, Australia</country>
</nlm:aff>
<country xml:lang="fr">Australie</country>
<wicri:regionArea>Department of Medical Microbiology and Virology, National Health Laboratory Service/University of the Free State, Bloemfontein 9301</wicri:regionArea>
<wicri:noRegion>Bloemfontein 9301</wicri:noRegion>
</affiliation>
</author>
<author>
<name sortKey="Naderer, Thomas" sort="Naderer, Thomas" uniqKey="Naderer T" first="Thomas" last="Naderer">Thomas Naderer</name>
<affiliation wicri:level="1">
<nlm:aff id="aff1">
<institution>Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University</institution>
<country>Clayton, VIC, Australia</country>
</nlm:aff>
<country xml:lang="fr">Australie</country>
<wicri:regionArea>Department of Medical Microbiology and Virology, National Health Laboratory Service/University of the Free State, Bloemfontein 9301</wicri:regionArea>
<wicri:noRegion>Bloemfontein 9301</wicri:noRegion>
</affiliation>
</author>
</analytic>
<series>
<title level="j">Frontiers in Cellular and Infection Microbiology</title>
<idno type="eISSN">2235-2988</idno>
<imprint>
<date when="2017">2017</date>
</imprint>
</series>
</biblStruct>
</sourceDesc>
</fileDesc>
<profileDesc>
<textClass></textClass>
</profileDesc>
</teiHeader>
<front>
<div type="abstract" xml:lang="en">
<p>The human pathogen
<italic>Legionella pneumophila</italic>
must evade host cell death signaling to enable replication in lung macrophages and to cause disease. After bacterial growth, however,
<italic>L. pneumophila</italic>
is thought to induce apoptosis during egress from macrophages. The bacterial effector protein, SidF, has been shown to control host cell survival and death by inhibiting pro-apoptotic BNIP3 and BCL-RAMBO signaling. Using live-cell imaging to follow the
<italic>L. pneumophila</italic>
-macrophage interaction, we now demonstrate that
<italic>L. pneumophila</italic>
evades host cell apoptosis independent of SidF. In the absence of SidF,
<italic>L. pneumophila</italic>
was able to replicate, cause loss of mitochondria membrane potential, kill macrophages, and establish infections in lungs of mice. Consistent with this, deletion of BNIP3 and BCL-RAMBO did not affect intracellular
<italic>L. pneumophila</italic>
replication, macrophage death rates, and
<italic>in vivo</italic>
bacterial virulence. Abrogating mitochondrial cell death by genetic deletion of the effectors of intrinsic apoptosis, BAX, and BAK, or the regulator of mitochondrial permeability transition pore formation, cyclophilin-D, did not affect bacterial growth or the initial killing of macrophages. Loss of BAX and BAK only marginally limited the ability of
<italic>L. pneumophila</italic>
to efficiently kill all macrophages over extended periods.
<italic>L. pneumophila</italic>
induced killing of macrophages was delayed in the absence of capsase-11 mediated pyroptosis. Together, our data demonstrate that
<italic>L. pneumophila</italic>
evades host cell death responses independently of SidF during replication and can induce pyroptosis to kill macrophages in a timely manner.</p>
</div>
</front>
<back>
<div1 type="bibliography">
<listBibl>
<biblStruct>
<analytic>
<author>
<name sortKey="Abu Zant, A" uniqKey="Abu Zant A">A. Abu-Zant</name>
</author>
<author>
<name sortKey="Jones, S" uniqKey="Jones S">S. Jones</name>
</author>
<author>
<name sortKey="Asare, R" uniqKey="Asare R">R. Asare</name>
</author>
<author>
<name sortKey="Suttles, J" uniqKey="Suttles J">J. Suttles</name>
</author>
<author>
<name sortKey="Price, C" uniqKey="Price C">C. Price</name>
</author>
<author>
<name sortKey="Graham, J" uniqKey="Graham J">J. Graham</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Abu Zant, A" uniqKey="Abu Zant A">A. Abu-Zant</name>
</author>
<author>
<name sortKey="Santic, M" uniqKey="Santic M">M. Santic</name>
</author>
<author>
<name sortKey="Molmeret, M" uniqKey="Molmeret M">M. Molmeret</name>
</author>
<author>
<name sortKey="Jones, S" uniqKey="Jones S">S. Jones</name>
</author>
<author>
<name sortKey="Helbig, J" uniqKey="Helbig J">J. Helbig</name>
</author>
<author>
<name sortKey="Abu Kwaik, Y" uniqKey="Abu Kwaik Y">Y. Abu Kwaik</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Akhter, A" uniqKey="Akhter A">A. Akhter</name>
</author>
<author>
<name sortKey="Gavrilin, M A" uniqKey="Gavrilin M">M. A. Gavrilin</name>
</author>
<author>
<name sortKey="Frantz, L" uniqKey="Frantz L">L. Frantz</name>
</author>
<author>
<name sortKey="Washington, S" uniqKey="Washington S">S. Washington</name>
</author>
<author>
<name sortKey="Ditty, C" uniqKey="Ditty C">C. Ditty</name>
</author>
<author>
<name sortKey="Limoli, D" uniqKey="Limoli D">D. Limoli</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Amer, A O" uniqKey="Amer A">A. O. Amer</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Baines, C P" uniqKey="Baines C">C. P. Baines</name>
</author>
<author>
<name sortKey="Kaiser, R A" uniqKey="Kaiser R">R. A. Kaiser</name>
</author>
<author>
<name sortKey="Purcell, N H" uniqKey="Purcell N">N. H. Purcell</name>
</author>
<author>
<name sortKey="Blair, N S" uniqKey="Blair N">N. S. Blair</name>
</author>
<author>
<name sortKey="Osinska, H" uniqKey="Osinska H">H. Osinska</name>
</author>
<author>
<name sortKey="Hambleton, M A" uniqKey="Hambleton M">M. A. Hambleton</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Banga, S" uniqKey="Banga S">S. Banga</name>
</author>
<author>
<name sortKey="Gao, P" uniqKey="Gao P">P. Gao</name>
</author>
<author>
<name sortKey="Shen, X" uniqKey="Shen X">X. Shen</name>
</author>
<author>
<name sortKey="Fiscus, V" uniqKey="Fiscus V">V. Fiscus</name>
</author>
<author>
<name sortKey="Zong, W X" uniqKey="Zong W">W. X. Zong</name>
</author>
<author>
<name sortKey="Chen, L" uniqKey="Chen L">L. Chen</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Broz, P" uniqKey="Broz P">P. Broz</name>
</author>
<author>
<name sortKey="Ruby, T" uniqKey="Ruby T">T. Ruby</name>
</author>
<author>
<name sortKey="Belhocine, K" uniqKey="Belhocine K">K. Belhocine</name>
</author>
<author>
<name sortKey="Bouley, D M" uniqKey="Bouley D">D. M. Bouley</name>
</author>
<author>
<name sortKey="Kayagaki, N" uniqKey="Kayagaki N">N. Kayagaki</name>
</author>
<author>
<name sortKey="Dixit, V M" uniqKey="Dixit V">V. M. Dixit</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Carneiro, L A" uniqKey="Carneiro L">L. A. Carneiro</name>
</author>
<author>
<name sortKey="Travassos, L H" uniqKey="Travassos L">L. H. Travassos</name>
</author>
<author>
<name sortKey="Soares, F" uniqKey="Soares F">F. Soares</name>
</author>
<author>
<name sortKey="Tattoli, I" uniqKey="Tattoli I">I. Tattoli</name>
</author>
<author>
<name sortKey="Magalhaes, J G" uniqKey="Magalhaes J">J. G. Magalhaes</name>
</author>
<author>
<name sortKey="Bozza, M T" uniqKey="Bozza M">M. T. Bozza</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Case, C L" uniqKey="Case C">C. L. Case</name>
</author>
<author>
<name sortKey="Kohler, L J" uniqKey="Kohler L">L. J. Kohler</name>
</author>
<author>
<name sortKey="Lima, J B" uniqKey="Lima J">J. B. Lima</name>
</author>
<author>
<name sortKey="Strowig, T" uniqKey="Strowig T">T. Strowig</name>
</author>
<author>
<name sortKey="De Zoete, M R" uniqKey="De Zoete M">M. R. de Zoete</name>
</author>
<author>
<name sortKey="Flavell, R A" uniqKey="Flavell R">R. A. Flavell</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Casson, C N" uniqKey="Casson C">C. N. Casson</name>
</author>
<author>
<name sortKey="Copenhaver, A M" uniqKey="Copenhaver A">A. M. Copenhaver</name>
</author>
<author>
<name sortKey="Zwack, E E" uniqKey="Zwack E">E. E. Zwack</name>
</author>
<author>
<name sortKey="Nguyen, H T" uniqKey="Nguyen H">H. T. Nguyen</name>
</author>
<author>
<name sortKey="Strowig, T" uniqKey="Strowig T">T. Strowig</name>
</author>
<author>
<name sortKey="Javdan, B" uniqKey="Javdan B">B. Javdan</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Cazalet, C" uniqKey="Cazalet C">C. Cazalet</name>
</author>
<author>
<name sortKey="Gomez Valero, L" uniqKey="Gomez Valero L">L. Gomez-Valero</name>
</author>
<author>
<name sortKey="Rusniok, C" uniqKey="Rusniok C">C. Rusniok</name>
</author>
<author>
<name sortKey="Lomma, M" uniqKey="Lomma M">M. Lomma</name>
</author>
<author>
<name sortKey="Dervins Ravault, D" uniqKey="Dervins Ravault D">D. Dervins-Ravault</name>
</author>
<author>
<name sortKey="Newton, H J" uniqKey="Newton H">H. J. Newton</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Cerqueira, D M" uniqKey="Cerqueira D">D. M. Cerqueira</name>
</author>
<author>
<name sortKey="Pereira, M S" uniqKey="Pereira M">M. S. Pereira</name>
</author>
<author>
<name sortKey="Silva, A L" uniqKey="Silva A">A. L. Silva</name>
</author>
<author>
<name sortKey="Cunha, L D" uniqKey="Cunha L">L. D. Cunha</name>
</author>
<author>
<name sortKey="Zamboni, D S" uniqKey="Zamboni D">D. S. Zamboni</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Chipuk, J E" uniqKey="Chipuk J">J. E. Chipuk</name>
</author>
<author>
<name sortKey="Moldoveanu, T" uniqKey="Moldoveanu T">T. Moldoveanu</name>
</author>
<author>
<name sortKey="Llambi, F" uniqKey="Llambi F">F. Llambi</name>
</author>
<author>
<name sortKey="Parsons, M J" uniqKey="Parsons M">M. J. Parsons</name>
</author>
<author>
<name sortKey="Green, D R" uniqKey="Green D">D. R. Green</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Chow, S H" uniqKey="Chow S">S. H. Chow</name>
</author>
<author>
<name sortKey="Deo, P" uniqKey="Deo P">P. Deo</name>
</author>
<author>
<name sortKey="Naderer, T" uniqKey="Naderer T">T. Naderer</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Croker, B A" uniqKey="Croker B">B. A. Croker</name>
</author>
<author>
<name sortKey="O Donnell, J A" uniqKey="O Donnell J">J. A. O'Donnell</name>
</author>
<author>
<name sortKey="Nowell, C J" uniqKey="Nowell C">C. J. Nowell</name>
</author>
<author>
<name sortKey="Metcalf, D" uniqKey="Metcalf D">D. Metcalf</name>
</author>
<author>
<name sortKey="Dewson, G" uniqKey="Dewson G">G. Dewson</name>
</author>
<author>
<name sortKey="Campbell, K J" uniqKey="Campbell K">K. J. Campbell</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Cunha, B A" uniqKey="Cunha B">B. A. Cunha</name>
</author>
<author>
<name sortKey="Burillo, A" uniqKey="Burillo A">A. Burillo</name>
</author>
<author>
<name sortKey="Bouza, E" uniqKey="Bouza E">E. Bouza</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Czabotar, P E" uniqKey="Czabotar P">P. E. Czabotar</name>
</author>
<author>
<name sortKey="Lessene, G" uniqKey="Lessene G">G. Lessene</name>
</author>
<author>
<name sortKey="Strasser, A" uniqKey="Strasser A">A. Strasser</name>
</author>
<author>
<name sortKey="Adams, J M" uniqKey="Adams J">J. M. Adams</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Diwan, A" uniqKey="Diwan A">A. Diwan</name>
</author>
<author>
<name sortKey="Krenz, M" uniqKey="Krenz M">M. Krenz</name>
</author>
<author>
<name sortKey="Syed, F M" uniqKey="Syed F">F. M. Syed</name>
</author>
<author>
<name sortKey="Wansapura, J" uniqKey="Wansapura J">J. Wansapura</name>
</author>
<author>
<name sortKey="Ren, X" uniqKey="Ren X">X. Ren</name>
</author>
<author>
<name sortKey="Koesters, A G" uniqKey="Koesters A">A. G. Koesters</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Edelstein, P H" uniqKey="Edelstein P">P. H. Edelstein</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Elmore, S" uniqKey="Elmore S">S. Elmore</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Fischer, S F" uniqKey="Fischer S">S. F. Fischer</name>
</author>
<author>
<name sortKey="Vier, J" uniqKey="Vier J">J. Vier</name>
</author>
<author>
<name sortKey="Muller Thomas, C" uniqKey="Muller Thomas C">C. Müller-Thomas</name>
</author>
<author>
<name sortKey="H Cker, G" uniqKey="H Cker G">G. Häcker</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Gao, L Y" uniqKey="Gao L">L. Y. Gao</name>
</author>
<author>
<name sortKey="Abu Kwaik, Y" uniqKey="Abu Kwaik Y">Y. Abu Kwaik</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Gomez Valero, L" uniqKey="Gomez Valero L">L. Gomez-Valero</name>
</author>
<author>
<name sortKey="Rusniok, C" uniqKey="Rusniok C">C. Rusniok</name>
</author>
<author>
<name sortKey="Cazalet, C" uniqKey="Cazalet C">C. Cazalet</name>
</author>
<author>
<name sortKey="Buchrieser, C" uniqKey="Buchrieser C">C. Buchrieser</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Gutierrez Aguilar, M" uniqKey="Gutierrez Aguilar M">M. Gutiérrez-Aguilar</name>
</author>
<author>
<name sortKey="Baines, C P" uniqKey="Baines C">C. P. Baines</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Hagar, J A" uniqKey="Hagar J">J. A. Hagar</name>
</author>
<author>
<name sortKey="Powell, D A" uniqKey="Powell D">D. A. Powell</name>
</author>
<author>
<name sortKey="Aachoui, Y" uniqKey="Aachoui Y">Y. Aachoui</name>
</author>
<author>
<name sortKey="Ernst, R K" uniqKey="Ernst R">R. K. Ernst</name>
</author>
<author>
<name sortKey="Miao, E A" uniqKey="Miao E">E. A. Miao</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Hsu, F" uniqKey="Hsu F">F. Hsu</name>
</author>
<author>
<name sortKey="Zhu, W" uniqKey="Zhu W">W. Zhu</name>
</author>
<author>
<name sortKey="Brennan, L" uniqKey="Brennan L">L. Brennan</name>
</author>
<author>
<name sortKey="Tao, L" uniqKey="Tao L">L. Tao</name>
</author>
<author>
<name sortKey="Luo, Z Q" uniqKey="Luo Z">Z. Q. Luo</name>
</author>
<author>
<name sortKey="Mao, Y" uniqKey="Mao Y">Y. Mao</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Isberg, R R" uniqKey="Isberg R">R. R. Isberg</name>
</author>
<author>
<name sortKey="O Connor, T J" uniqKey="O Connor T">T. J. O'Connor</name>
</author>
<author>
<name sortKey="Heidtman, M" uniqKey="Heidtman M">M. Heidtman</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Kataoka, T" uniqKey="Kataoka T">T. Kataoka</name>
</author>
<author>
<name sortKey="Holler, N" uniqKey="Holler N">N. Holler</name>
</author>
<author>
<name sortKey="Micheau, O" uniqKey="Micheau O">O. Micheau</name>
</author>
<author>
<name sortKey="Martinon, F" uniqKey="Martinon F">F. Martinon</name>
</author>
<author>
<name sortKey="Tinel, A" uniqKey="Tinel A">A. Tinel</name>
</author>
<author>
<name sortKey="Hofmann, K" uniqKey="Hofmann K">K. Hofmann</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Kayagaki, N" uniqKey="Kayagaki N">N. Kayagaki</name>
</author>
<author>
<name sortKey="Wong, M T" uniqKey="Wong M">M. T. Wong</name>
</author>
<author>
<name sortKey="Stowe, I B" uniqKey="Stowe I">I. B. Stowe</name>
</author>
<author>
<name sortKey="Ramani, S R" uniqKey="Ramani S">S. R. Ramani</name>
</author>
<author>
<name sortKey="Gonzalez, L C" uniqKey="Gonzalez L">L. C. Gonzalez</name>
</author>
<author>
<name sortKey="Akashi Takamura, S" uniqKey="Akashi Takamura S">S. Akashi-Takamura</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Khemiri, A" uniqKey="Khemiri A">A. Khemiri</name>
</author>
<author>
<name sortKey="Jouenne, T" uniqKey="Jouenne T">T. Jouenne</name>
</author>
<author>
<name sortKey="Cosette, P" uniqKey="Cosette P">P. Cosette</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Kim, J Y" uniqKey="Kim J">J. Y. Kim</name>
</author>
<author>
<name sortKey="Kim, Y J" uniqKey="Kim Y">Y. J. Kim</name>
</author>
<author>
<name sortKey="Lee, S" uniqKey="Lee S">S. Lee</name>
</author>
<author>
<name sortKey="Park, J H" uniqKey="Park J">J. H. Park</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Lamkanfi, M" uniqKey="Lamkanfi M">M. Lamkanfi</name>
</author>
<author>
<name sortKey="Amer, A" uniqKey="Amer A">A. Amer</name>
</author>
<author>
<name sortKey="Kanneganti, T D" uniqKey="Kanneganti T">T. D. Kanneganti</name>
</author>
<author>
<name sortKey="Mu Oz Planillo, R" uniqKey="Mu Oz Planillo R">R. Muñoz-Planillo</name>
</author>
<author>
<name sortKey="Chen, G" uniqKey="Chen G">G. Chen</name>
</author>
<author>
<name sortKey="Vandenabeele, P" uniqKey="Vandenabeele P">P. Vandenabeele</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Losick, V P" uniqKey="Losick V">V. P. Losick</name>
</author>
<author>
<name sortKey="Isberg, R R" uniqKey="Isberg R">R. R. Isberg</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Losick, V P" uniqKey="Losick V">V. P. Losick</name>
</author>
<author>
<name sortKey="Isberg, R R" uniqKey="Isberg R">R. R. Isberg</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Miao, E A" uniqKey="Miao E">E. A. Miao</name>
</author>
<author>
<name sortKey="Leaf, I A" uniqKey="Leaf I">I. A. Leaf</name>
</author>
<author>
<name sortKey="Treuting, P M" uniqKey="Treuting P">P. M. Treuting</name>
</author>
<author>
<name sortKey="Mao, D P" uniqKey="Mao D">D. P. Mao</name>
</author>
<author>
<name sortKey="Dors, M" uniqKey="Dors M">M. Dors</name>
</author>
<author>
<name sortKey="Sarkar, A" uniqKey="Sarkar A">A. Sarkar</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Molmeret, M" uniqKey="Molmeret M">M. Molmeret</name>
</author>
<author>
<name sortKey="Abu Kwaik, Y" uniqKey="Abu Kwaik Y">Y. Abu Kwaik</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Molmeret, M" uniqKey="Molmeret M">M. Molmeret</name>
</author>
<author>
<name sortKey="Alli, O A" uniqKey="Alli O">O. A. Alli</name>
</author>
<author>
<name sortKey="Zink, S" uniqKey="Zink S">S. Zink</name>
</author>
<author>
<name sortKey="Flieger, A" uniqKey="Flieger A">A. Flieger</name>
</author>
<author>
<name sortKey="Cianciotto, N P" uniqKey="Cianciotto N">N. P. Cianciotto</name>
</author>
<author>
<name sortKey="Kwaik, Y A" uniqKey="Kwaik Y">Y. A. Kwaik</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Molmeret, M" uniqKey="Molmeret M">M. Molmeret</name>
</author>
<author>
<name sortKey="Jones, S" uniqKey="Jones S">S. Jones</name>
</author>
<author>
<name sortKey="Santic, M" uniqKey="Santic M">M. Santic</name>
</author>
<author>
<name sortKey="Habyarimana, F" uniqKey="Habyarimana F">F. Habyarimana</name>
</author>
<author>
<name sortKey="Esteban, M T" uniqKey="Esteban M">M. T. Esteban</name>
</author>
<author>
<name sortKey="Kwaik, Y A" uniqKey="Kwaik Y">Y. A. Kwaik</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Molmeret, M" uniqKey="Molmeret M">M. Molmeret</name>
</author>
<author>
<name sortKey="Santic, M" uniqKey="Santic M">M. Santic</name>
</author>
<author>
<name sortKey="Asare, R" uniqKey="Asare R">R. Asare</name>
</author>
<author>
<name sortKey="Carabeo, R A" uniqKey="Carabeo R">R. A. Carabeo</name>
</author>
<author>
<name sortKey="Abu Kwaik, Y" uniqKey="Abu Kwaik Y">Y. Abu Kwaik</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Molmeret, M" uniqKey="Molmeret M">M. Molmeret</name>
</author>
<author>
<name sortKey="Zink, S D" uniqKey="Zink S">S. D. Zink</name>
</author>
<author>
<name sortKey="Han, L" uniqKey="Han L">L. Han</name>
</author>
<author>
<name sortKey="Abu Zant, A" uniqKey="Abu Zant A">A. Abu-Zant</name>
</author>
<author>
<name sortKey="Asari, R" uniqKey="Asari R">R. Asari</name>
</author>
<author>
<name sortKey="Bitar, D M" uniqKey="Bitar D">D. M. Bitar</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Molofsky, A B" uniqKey="Molofsky A">A. B. Molofsky</name>
</author>
<author>
<name sortKey="Byrne, B G" uniqKey="Byrne B">B. G. Byrne</name>
</author>
<author>
<name sortKey="Whitfield, N N" uniqKey="Whitfield N">N. N. Whitfield</name>
</author>
<author>
<name sortKey="Madigan, C A" uniqKey="Madigan C">C. A. Madigan</name>
</author>
<author>
<name sortKey="Fuse, E T" uniqKey="Fuse E">E. T. Fuse</name>
</author>
<author>
<name sortKey="Tateda, K" uniqKey="Tateda K">K. Tateda</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Nogueira, C" uniqKey="Nogueira C">C. Nogueira</name>
</author>
<author>
<name sortKey="Lindsten, T" uniqKey="Lindsten T">T. Lindsten</name>
</author>
<author>
<name sortKey="Jamieson, A M" uniqKey="Jamieson A">A. M. Jamieson</name>
</author>
<author>
<name sortKey="Case, C L" uniqKey="Case C">C. L. Case</name>
</author>
<author>
<name sortKey="Shin, S" uniqKey="Shin S">S. Shin</name>
</author>
<author>
<name sortKey="Thompson, C B" uniqKey="Thompson C">C. B. Thompson</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Ren, T" uniqKey="Ren T">T. Ren</name>
</author>
<author>
<name sortKey="Zamboni, D S" uniqKey="Zamboni D">D. S. Zamboni</name>
</author>
<author>
<name sortKey="Roy, C R" uniqKey="Roy C">C. R. Roy</name>
</author>
<author>
<name sortKey="Dietrich, W F" uniqKey="Dietrich W">W. F. Dietrich</name>
</author>
<author>
<name sortKey="Vance, R E" uniqKey="Vance R">R. E. Vance</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Rikka, S" uniqKey="Rikka S">S. Rikka</name>
</author>
<author>
<name sortKey="Quinsay, M N" uniqKey="Quinsay M">M. N. Quinsay</name>
</author>
<author>
<name sortKey="Thomas, R L" uniqKey="Thomas R">R. L. Thomas</name>
</author>
<author>
<name sortKey="Kubli, D A" uniqKey="Kubli D">D. A. Kubli</name>
</author>
<author>
<name sortKey="Zhang, X" uniqKey="Zhang X">X. Zhang</name>
</author>
<author>
<name sortKey="Murphy, A N" uniqKey="Murphy A">A. N. Murphy</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Santic, M" uniqKey="Santic M">M. Santic</name>
</author>
<author>
<name sortKey="Asare, R" uniqKey="Asare R">R. Asare</name>
</author>
<author>
<name sortKey="Doric, M" uniqKey="Doric M">M. Doric</name>
</author>
<author>
<name sortKey="Abu Kwaik, Y" uniqKey="Abu Kwaik Y">Y. Abu Kwaik</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Santic, M" uniqKey="Santic M">M. Santic</name>
</author>
<author>
<name sortKey="Molmeret, M" uniqKey="Molmeret M">M. Molmeret</name>
</author>
<author>
<name sortKey="Abu Kwaik, Y" uniqKey="Abu Kwaik Y">Y. Abu Kwaik</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Shi, J" uniqKey="Shi J">J. Shi</name>
</author>
<author>
<name sortKey="Zhao, Y" uniqKey="Zhao Y">Y. Zhao</name>
</author>
<author>
<name sortKey="Wang, K" uniqKey="Wang K">K. Wang</name>
</author>
<author>
<name sortKey="Shi, X" uniqKey="Shi X">X. Shi</name>
</author>
<author>
<name sortKey="Wang, Y" uniqKey="Wang Y">Y. Wang</name>
</author>
<author>
<name sortKey="Huang, H" uniqKey="Huang H">H. Huang</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Speir, M" uniqKey="Speir M">M. Speir</name>
</author>
<author>
<name sortKey="Lawler, K E" uniqKey="Lawler K">K. E. Lawler</name>
</author>
<author>
<name sortKey="Glaser, S P" uniqKey="Glaser S">S. P. Glaser</name>
</author>
<author>
<name sortKey="Abraham, G" uniqKey="Abraham G">G. Abraham</name>
</author>
<author>
<name sortKey="Chow, S" uniqKey="Chow S">S. Chow</name>
</author>
<author>
<name sortKey="Vogrin, A" uniqKey="Vogrin A">A. Vogrin</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Speir, M" uniqKey="Speir M">M. Speir</name>
</author>
<author>
<name sortKey="Vince, J" uniqKey="Vince J">J. Vince</name>
</author>
<author>
<name sortKey="Naderer, T" uniqKey="Naderer T">T. Naderer</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Van Delft, M F" uniqKey="Van Delft M">M. F. van Delft</name>
</author>
<author>
<name sortKey="Wei, A H" uniqKey="Wei A">A. H. Wei</name>
</author>
<author>
<name sortKey="Mason, K D" uniqKey="Mason K">K. D. Mason</name>
</author>
<author>
<name sortKey="Vandenberg, C J" uniqKey="Vandenberg C">C. J. Vandenberg</name>
</author>
<author>
<name sortKey="Chen, L" uniqKey="Chen L">L. Chen</name>
</author>
<author>
<name sortKey="Czabotar, P E" uniqKey="Czabotar P">P. E. Czabotar</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Willis, S N" uniqKey="Willis S">S. N. Willis</name>
</author>
<author>
<name sortKey="Fletcher, J" uniqKey="Fletcher J">J. Fletcher</name>
</author>
<author>
<name sortKey="Kaufmann, T" uniqKey="Kaufmann T">T. Kaufmann</name>
</author>
<author>
<name sortKey="Van Delft, M F" uniqKey="Van Delft M">M. F. van Delft</name>
</author>
<author>
<name sortKey="Chen, L" uniqKey="Chen L">L. Chen</name>
</author>
<author>
<name sortKey="Czabotar, P E" uniqKey="Czabotar P">P. E. Czabotar</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Youle, R J" uniqKey="Youle R">R. J. Youle</name>
</author>
<author>
<name sortKey="Strasser, A" uniqKey="Strasser A">A. Strasser</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Zamboni, D S" uniqKey="Zamboni D">D. S. Zamboni</name>
</author>
<author>
<name sortKey="Kobayashi, K S" uniqKey="Kobayashi K">K. S. Kobayashi</name>
</author>
<author>
<name sortKey="Kohlsdorf, T" uniqKey="Kohlsdorf T">T. Kohlsdorf</name>
</author>
<author>
<name sortKey="Ogura, Y" uniqKey="Ogura Y">Y. Ogura</name>
</author>
<author>
<name sortKey="Long, E M" uniqKey="Long E">E. M. Long</name>
</author>
<author>
<name sortKey="Vance, R E" uniqKey="Vance R">R. E. Vance</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Zhang, J" uniqKey="Zhang J">J. Zhang</name>
</author>
<author>
<name sortKey="Ney, P A" uniqKey="Ney P">P. A. Ney</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Zhao, Y" uniqKey="Zhao Y">Y. Zhao</name>
</author>
<author>
<name sortKey="Yang, J" uniqKey="Yang J">J. Yang</name>
</author>
<author>
<name sortKey="Shi, J" uniqKey="Shi J">J. Shi</name>
</author>
<author>
<name sortKey="Gong, Y N" uniqKey="Gong Y">Y. N. Gong</name>
</author>
<author>
<name sortKey="Lu, Q" uniqKey="Lu Q">Q. Lu</name>
</author>
<author>
<name sortKey="Xu, H" uniqKey="Xu H">H. Xu</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Zhu, W" uniqKey="Zhu W">W. Zhu</name>
</author>
<author>
<name sortKey="Hammad, L A" uniqKey="Hammad L">L. A. Hammad</name>
</author>
<author>
<name sortKey="Hsu, F" uniqKey="Hsu F">F. Hsu</name>
</author>
<author>
<name sortKey="Mao, Y" uniqKey="Mao Y">Y. Mao</name>
</author>
<author>
<name sortKey="Luo, Z Q" uniqKey="Luo Z">Z. Q. Luo</name>
</author>
</analytic>
</biblStruct>
</listBibl>
</div1>
</back>
</TEI>
<pmc article-type="research-article">
<pmc-dir>properties open_access</pmc-dir>
<front>
<journal-meta>
<journal-id journal-id-type="nlm-ta">Front Cell Infect Microbiol</journal-id>
<journal-id journal-id-type="iso-abbrev">Front Cell Infect Microbiol</journal-id>
<journal-id journal-id-type="publisher-id">Front. Cell. Infect. Microbiol.</journal-id>
<journal-title-group>
<journal-title>Frontiers in Cellular and Infection Microbiology</journal-title>
</journal-title-group>
<issn pub-type="epub">2235-2988</issn>
<publisher>
<publisher-name>Frontiers Media S.A.</publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id pub-id-type="pmid">28261564</article-id>
<article-id pub-id-type="pmc">5311068</article-id>
<article-id pub-id-type="doi">10.3389/fcimb.2017.00035</article-id>
<article-categories>
<subj-group subj-group-type="heading">
<subject>Microbiology</subject>
<subj-group>
<subject>Original Research</subject>
</subj-group>
</subj-group>
</article-categories>
<title-group>
<article-title>
<italic>Legionella pneumophila</italic>
Strain 130b Evades Macrophage Cell Death Independent of the Effector SidF in the Absence of Flagellin</article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname>Speir</surname>
<given-names>Mary</given-names>
</name>
<xref ref-type="aff" rid="aff1">
<sup>1</sup>
</xref>
<uri xlink:type="simple" xlink:href="http://loop.frontiersin.org/people/390924/overview"></uri>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Vogrin</surname>
<given-names>Adam</given-names>
</name>
<xref ref-type="aff" rid="aff1">
<sup>1</sup>
</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Seidi</surname>
<given-names>Azadeh</given-names>
</name>
<xref ref-type="aff" rid="aff1">
<sup>1</sup>
</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Abraham</surname>
<given-names>Gilu</given-names>
</name>
<xref ref-type="aff" rid="aff1">
<sup>1</sup>
</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Hunot</surname>
<given-names>Stéphane</given-names>
</name>
<xref ref-type="aff" rid="aff2">
<sup>2</sup>
</xref>
<xref ref-type="aff" rid="aff3">
<sup>3</sup>
</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Han</surname>
<given-names>Qingqing</given-names>
</name>
<xref ref-type="aff" rid="aff2">
<sup>2</sup>
</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Dorn</surname>
<given-names>Gerald W.</given-names>
<suffix>II</suffix>
</name>
<xref ref-type="aff" rid="aff4">
<sup>4</sup>
</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Masters</surname>
<given-names>Seth L.</given-names>
</name>
<xref ref-type="aff" rid="aff5">
<sup>5</sup>
</xref>
<xref ref-type="aff" rid="aff6">
<sup>6</sup>
</xref>
<uri xlink:type="simple" xlink:href="http://loop.frontiersin.org/people/24402/overview"></uri>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Flavell</surname>
<given-names>Richard A.</given-names>
</name>
<xref ref-type="aff" rid="aff2">
<sup>2</sup>
</xref>
<uri xlink:type="simple" xlink:href="http://loop.frontiersin.org/people/68694/overview"></uri>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Vince</surname>
<given-names>James E.</given-names>
</name>
<xref ref-type="aff" rid="aff5">
<sup>5</sup>
</xref>
<xref ref-type="aff" rid="aff6">
<sup>6</sup>
</xref>
<xref ref-type="author-notes" rid="fn001">
<sup>*</sup>
</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Naderer</surname>
<given-names>Thomas</given-names>
</name>
<xref ref-type="aff" rid="aff1">
<sup>1</sup>
</xref>
<xref ref-type="author-notes" rid="fn002">
<sup>*</sup>
</xref>
<uri xlink:type="simple" xlink:href="http://loop.frontiersin.org/people/77039/overview"></uri>
</contrib>
</contrib-group>
<aff id="aff1">
<sup>1</sup>
<institution>Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University</institution>
<country>Clayton, VIC, Australia</country>
</aff>
<aff id="aff2">
<sup>2</sup>
<institution>Department of Immunobiology, Howard Hughes Medical Institute, Yale University School of Medicine</institution>
<country>New Haven, CT, USA</country>
</aff>
<aff id="aff3">
<sup>3</sup>
<institution>Centre National de la Recherche Scientifique, Institut National de la Santé et de la Recherche Médicale, Institut du Cerveau et la Moelle - Hôpital Pitié-Salpêtrière, Boulevard de l'hôpital, Sorbonne Universités, UPMC Univ Paris 06</institution>
<country>Paris, France</country>
</aff>
<aff id="aff4">
<sup>4</sup>
<institution>Department of Medicine, Center for Pharmacogenomics, Washington University School of Medicine</institution>
<country>St. Louis, MO, USA</country>
</aff>
<aff id="aff5">
<sup>5</sup>
<institution>Walter and Eliza Hall Institute of Medical Research</institution>
<country>Parkville, VIC, Australia</country>
</aff>
<aff id="aff6">
<sup>6</sup>
<institution>Department of Medical Biology, University of Melbourne</institution>
<country>Parkville, VIC, Australia</country>
</aff>
<author-notes>
<fn fn-type="edited-by">
<p>Edited by: Matthias P. Machner, National Institutes of Health, USA</p>
</fn>
<fn fn-type="edited-by">
<p>Reviewed by: Sunny Shin, University of Pennsylvania, USA; John-Demian Sauer, University of Wisconsin-Madison, USA</p>
</fn>
<corresp id="fn001">*Correspondence: James E. Vince
<email xlink:type="simple">vince@wehi.edu.au</email>
</corresp>
<corresp id="fn002">Thomas Naderer,
<email xlink:type="simple">thomas.naderer@monash.edu</email>
</corresp>
</author-notes>
<pub-date pub-type="epub">
<day>16</day>
<month>2</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="collection">
<year>2017</year>
</pub-date>
<volume>7</volume>
<elocation-id>35</elocation-id>
<history>
<date date-type="received">
<day>29</day>
<month>9</month>
<year>2016</year>
</date>
<date date-type="accepted">
<day>30</day>
<month>1</month>
<year>2017</year>
</date>
</history>
<permissions>
<copyright-statement>Copyright © 2017 Speir, Vogrin, Seidi, Abraham, Hunot, Han, Dorn II, Masters, Flavell, Vince and Naderer.</copyright-statement>
<copyright-year>2017</copyright-year>
<copyright-holder>Speir, Vogrin, Seidi, Abraham, Hunot, Han, Dorn II, Masters, Flavell, Vince and Naderer</copyright-holder>
<license xlink:href="http://creativecommons.org/licenses/by/4.0/">
<license-p>This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.</license-p>
</license>
</permissions>
<abstract>
<p>The human pathogen
<italic>Legionella pneumophila</italic>
must evade host cell death signaling to enable replication in lung macrophages and to cause disease. After bacterial growth, however,
<italic>L. pneumophila</italic>
is thought to induce apoptosis during egress from macrophages. The bacterial effector protein, SidF, has been shown to control host cell survival and death by inhibiting pro-apoptotic BNIP3 and BCL-RAMBO signaling. Using live-cell imaging to follow the
<italic>L. pneumophila</italic>
-macrophage interaction, we now demonstrate that
<italic>L. pneumophila</italic>
evades host cell apoptosis independent of SidF. In the absence of SidF,
<italic>L. pneumophila</italic>
was able to replicate, cause loss of mitochondria membrane potential, kill macrophages, and establish infections in lungs of mice. Consistent with this, deletion of BNIP3 and BCL-RAMBO did not affect intracellular
<italic>L. pneumophila</italic>
replication, macrophage death rates, and
<italic>in vivo</italic>
bacterial virulence. Abrogating mitochondrial cell death by genetic deletion of the effectors of intrinsic apoptosis, BAX, and BAK, or the regulator of mitochondrial permeability transition pore formation, cyclophilin-D, did not affect bacterial growth or the initial killing of macrophages. Loss of BAX and BAK only marginally limited the ability of
<italic>L. pneumophila</italic>
to efficiently kill all macrophages over extended periods.
<italic>L. pneumophila</italic>
induced killing of macrophages was delayed in the absence of capsase-11 mediated pyroptosis. Together, our data demonstrate that
<italic>L. pneumophila</italic>
evades host cell death responses independently of SidF during replication and can induce pyroptosis to kill macrophages in a timely manner.</p>
</abstract>
<kwd-group>
<kwd>infection</kwd>
<kwd>bacteria</kwd>
<kwd>pyroptosis</kwd>
<kwd>caspases</kwd>
<kwd>pneumonia</kwd>
<kwd>mitochondria</kwd>
<kwd>live-cell imaging</kwd>
</kwd-group>
<funding-group>
<award-group>
<funding-source id="cn001">National Health and Medical Research Council
<named-content content-type="fundref-id">10.13039/501100000925</named-content>
</funding-source>
<award-id rid="cn001">#1024839</award-id>
<award-id rid="cn001">#1052598</award-id>
</award-group>
</funding-group>
<counts>
<fig-count count="6"></fig-count>
<table-count count="0"></table-count>
<equation-count count="0"></equation-count>
<ref-count count="56"></ref-count>
<page-count count="12"></page-count>
<word-count count="8697"></word-count>
</counts>
</article-meta>
</front>
</pmc>
<affiliations>
<list>
<country>
<li>Australie</li>
<li>France</li>
<li>États-Unis</li>
</country>
</list>
<tree>
<country name="Australie">
<noRegion>
<name sortKey="Speir, Mary" sort="Speir, Mary" uniqKey="Speir M" first="Mary" last="Speir">Mary Speir</name>
</noRegion>
<name sortKey="Abraham, Gilu" sort="Abraham, Gilu" uniqKey="Abraham G" first="Gilu" last="Abraham">Gilu Abraham</name>
<name sortKey="Masters, Seth L" sort="Masters, Seth L" uniqKey="Masters S" first="Seth L." last="Masters">Seth L. Masters</name>
<name sortKey="Masters, Seth L" sort="Masters, Seth L" uniqKey="Masters S" first="Seth L." last="Masters">Seth L. Masters</name>
<name sortKey="Naderer, Thomas" sort="Naderer, Thomas" uniqKey="Naderer T" first="Thomas" last="Naderer">Thomas Naderer</name>
<name sortKey="Seidi, Azadeh" sort="Seidi, Azadeh" uniqKey="Seidi A" first="Azadeh" last="Seidi">Azadeh Seidi</name>
<name sortKey="Vince, James E" sort="Vince, James E" uniqKey="Vince J" first="James E." last="Vince">James E. Vince</name>
<name sortKey="Vince, James E" sort="Vince, James E" uniqKey="Vince J" first="James E." last="Vince">James E. Vince</name>
<name sortKey="Vogrin, Adam" sort="Vogrin, Adam" uniqKey="Vogrin A" first="Adam" last="Vogrin">Adam Vogrin</name>
</country>
<country name="États-Unis">
<noRegion>
<name sortKey="Hunot, Stephane" sort="Hunot, Stephane" uniqKey="Hunot S" first="Stéphane" last="Hunot">Stéphane Hunot</name>
</noRegion>
<name sortKey="Dorn, Gerald W" sort="Dorn, Gerald W" uniqKey="Dorn G" first="Gerald W." last="Dorn">Gerald W. Dorn</name>
<name sortKey="Flavell, Richard A" sort="Flavell, Richard A" uniqKey="Flavell R" first="Richard A." last="Flavell">Richard A. Flavell</name>
<name sortKey="Han, Qingqing" sort="Han, Qingqing" uniqKey="Han Q" first="Qingqing" last="Han">Qingqing Han</name>
</country>
<country name="France">
<noRegion>
<name sortKey="Hunot, Stephane" sort="Hunot, Stephane" uniqKey="Hunot S" first="Stéphane" last="Hunot">Stéphane Hunot</name>
</noRegion>
</country>
</tree>
</affiliations>
</record>

Pour manipuler ce document sous Unix (Dilib)

EXPLOR_STEP=$WICRI_ROOT/Wicri/Asie/explor/AustralieFrV1/Data/Pmc/Checkpoint
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 000460 | SxmlIndent | more

Ou

HfdSelect -h $EXPLOR_AREA/Data/Pmc/Checkpoint/biblio.hfd -nk 000460 | SxmlIndent | more

Pour mettre un lien sur cette page dans le réseau Wicri

{{Explor lien
   |wiki=    Wicri/Asie
   |area=    AustralieFrV1
   |flux=    Pmc
   |étape=   Checkpoint
   |type=    RBID
   |clé=     PMC:5311068
   |texte=   Legionella pneumophila Strain 130b Evades Macrophage Cell Death Independent of the Effector SidF in the Absence of Flagellin
}}

Pour générer des pages wiki

HfdIndexSelect -h $EXPLOR_AREA/Data/Pmc/Checkpoint/RBID.i   -Sk "pubmed:28261564" \
       | HfdSelect -Kh $EXPLOR_AREA/Data/Pmc/Checkpoint/biblio.hfd   \
       | NlmPubMed2Wicri -a AustralieFrV1 

Wicri

This area was generated with Dilib version V0.6.33.
Data generation: Tue Dec 5 10:43:12 2017. Site generation: Tue Mar 5 14:07:20 2024