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Control of anterior GRadient 2 (AGR2) dimerization links endoplasmic reticulum proteostasis to inflammation

Identifieur interne : 000932 ( Main/Exploration ); précédent : 000931; suivant : 000933

Control of anterior GRadient 2 (AGR2) dimerization links endoplasmic reticulum proteostasis to inflammation

Auteurs : Marion Maurel ; Joanna Obacz ; Tony Avril ; Yong-Ping Ding ; Olga Papadodima ; Xavier Treton ; Fanny Daniel ; Eleftherios Pilalis ; Johanna Hörberg ; Wenyang Hou ; Marie-Claude Beauchamp ; Julien Tourneur-Marsille ; Dominique Cazals-Hatem ; Lucia Sommerova ; Afshin Samali ; Jan Tavernier ; Roman Hrstka ; Aurélien Dupont ; Delphine Fessart ; Frédéric Delom ; Martin E. Fernandez-Zapico ; Gregor Jansen ; Leif A. Eriksson ; David Y. Thomas ; Loydie Jerome-Majewska ; Ted Hupp ; Aristotelis Chatziioannou ; Eric Chevet ; Eric Ogier-Denis

Source :

RBID : PMC:6554669

Abstract

Abstract

Anterior gradient 2 (AGR2) is a dimeric protein disulfide isomerase family member involved in the regulation of protein quality control in the endoplasmic reticulum (ER). Mouse AGR2 deletion increases intestinal inflammation and promotes the development of inflammatory bowel disease (IBD). Although these biological effects are well established, the underlying molecular mechanisms of AGR2 function toward inflammation remain poorly defined. Here, using a protein–protein interaction screen to identify cellular regulators of AGR2 dimerization, we unveiled specific enhancers, including TMED2, and inhibitors of AGR2 dimerization, that control AGR2 functions. We demonstrate that modulation of AGR2 dimer formation, whether enhancing or inhibiting the process, yields pro‐inflammatory phenotypes, through either autophagy‐dependent processes or secretion of AGR2, respectively. We also demonstrate that in IBD and specifically in Crohn's disease, the levels of AGR2 dimerization modulators are selectively deregulated, and this correlates with severity of disease. Our study demonstrates that AGR2 dimers act as sensors of ER homeostasis which are disrupted upon ER stress and promote the secretion of AGR2 monomers. The latter might represent systemic alarm signals for pro‐inflammatory responses.


Url:
DOI: 10.15252/emmm.201810120
PubMed: 31040128
PubMed Central: 6554669


Affiliations:


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


Le document en format XML

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<nlm:aff id="emmm201810120-aff-0017"></nlm:aff>
</affiliation>
</author>
<author>
<name sortKey="Chatziioannou, Aristotelis" sort="Chatziioannou, Aristotelis" uniqKey="Chatziioannou A" first="Aristotelis" last="Chatziioannou">Aristotelis Chatziioannou</name>
<affiliation>
<nlm:aff id="emmm201810120-aff-0008"></nlm:aff>
</affiliation>
<affiliation>
<nlm:aff id="emmm201810120-aff-0018"></nlm:aff>
</affiliation>
</author>
<author>
<name sortKey="Chevet, Eric" sort="Chevet, Eric" uniqKey="Chevet E" first="Eric" last="Chevet">Eric Chevet</name>
<affiliation>
<nlm:aff id="emmm201810120-aff-0001"></nlm:aff>
</affiliation>
<affiliation>
<nlm:aff id="emmm201810120-aff-0002"></nlm:aff>
</affiliation>
</author>
<author>
<name sortKey="Ogier Enis, Eric" sort="Ogier Enis, Eric" uniqKey="Ogier Enis E" first="Eric" last="Ogier-Denis">Eric Ogier-Denis</name>
<affiliation>
<nlm:aff id="emmm201810120-aff-0005"></nlm:aff>
</affiliation>
<affiliation>
<nlm:aff id="emmm201810120-aff-0006"></nlm:aff>
</affiliation>
<affiliation>
<nlm:aff id="emmm201810120-aff-0007"></nlm:aff>
</affiliation>
</author>
</analytic>
<series>
<title level="j">EMBO Molecular Medicine</title>
<idno type="ISSN">1757-4676</idno>
<idno type="eISSN">1757-4684</idno>
<imprint>
<date when="2019">2019</date>
</imprint>
</series>
</biblStruct>
</sourceDesc>
</fileDesc>
<profileDesc>
<textClass></textClass>
</profileDesc>
</teiHeader>
<front>
<div type="abstract" xml:lang="en">
<title>Abstract</title>
<p>Anterior gradient 2 (
<styled-content style="fixed-case">AGR</styled-content>
2) is a dimeric protein disulfide isomerase family member involved in the regulation of protein quality control in the endoplasmic reticulum (
<styled-content style="fixed-case">ER</styled-content>
). Mouse
<styled-content style="fixed-case">AGR</styled-content>
2 deletion increases intestinal inflammation and promotes the development of inflammatory bowel disease (
<styled-content style="fixed-case">IBD</styled-content>
). Although these biological effects are well established, the underlying molecular mechanisms of
<styled-content style="fixed-case">AGR</styled-content>
2 function toward inflammation remain poorly defined. Here, using a protein–protein interaction screen to identify cellular regulators of
<styled-content style="fixed-case">AGR</styled-content>
2 dimerization, we unveiled specific enhancers, including
<styled-content style="fixed-case">TMED</styled-content>
2, and inhibitors of
<styled-content style="fixed-case">AGR</styled-content>
2 dimerization, that control
<styled-content style="fixed-case">AGR</styled-content>
2 functions. We demonstrate that modulation of
<styled-content style="fixed-case">AGR</styled-content>
2 dimer formation, whether enhancing or inhibiting the process, yields pro‐inflammatory phenotypes, through either autophagy‐dependent processes or secretion of
<styled-content style="fixed-case">AGR</styled-content>
2, respectively. We also demonstrate that in
<styled-content style="fixed-case">IBD</styled-content>
and specifically in Crohn's disease, the levels of
<styled-content style="fixed-case">AGR</styled-content>
2 dimerization modulators are selectively deregulated, and this correlates with severity of disease. Our study demonstrates that
<styled-content style="fixed-case">AGR</styled-content>
2 dimers act as sensors of
<styled-content style="fixed-case">ER</styled-content>
homeostasis which are disrupted upon
<styled-content style="fixed-case">ER</styled-content>
stress and promote the secretion of
<styled-content style="fixed-case">AGR</styled-content>
2 monomers. The latter might represent systemic alarm signals for pro‐inflammatory responses.</p>
</div>
</front>
<back>
<div1 type="bibliography">
<listBibl>
<biblStruct></biblStruct>
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<biblStruct></biblStruct>
</listBibl>
</div1>
</back>
</TEI>
<affiliations>
<list></list>
<tree>
<noCountry>
<name sortKey="Avril, Tony" sort="Avril, Tony" uniqKey="Avril T" first="Tony" last="Avril">Tony Avril</name>
<name sortKey="Beauchamp, Marie Laude" sort="Beauchamp, Marie Laude" uniqKey="Beauchamp M" first="Marie-Claude" last="Beauchamp">Marie-Claude Beauchamp</name>
<name sortKey="Cazals Atem, Dominique" sort="Cazals Atem, Dominique" uniqKey="Cazals Atem D" first="Dominique" last="Cazals-Hatem">Dominique Cazals-Hatem</name>
<name sortKey="Chatziioannou, Aristotelis" sort="Chatziioannou, Aristotelis" uniqKey="Chatziioannou A" first="Aristotelis" last="Chatziioannou">Aristotelis Chatziioannou</name>
<name sortKey="Chevet, Eric" sort="Chevet, Eric" uniqKey="Chevet E" first="Eric" last="Chevet">Eric Chevet</name>
<name sortKey="Daniel, Fanny" sort="Daniel, Fanny" uniqKey="Daniel F" first="Fanny" last="Daniel">Fanny Daniel</name>
<name sortKey="Delom, Frederic" sort="Delom, Frederic" uniqKey="Delom F" first="Frédéric" last="Delom">Frédéric Delom</name>
<name sortKey="Ding, Yong Ing" sort="Ding, Yong Ing" uniqKey="Ding Y" first="Yong-Ping" last="Ding">Yong-Ping Ding</name>
<name sortKey="Dupont, Aurelien" sort="Dupont, Aurelien" uniqKey="Dupont A" first="Aurélien" last="Dupont">Aurélien Dupont</name>
<name sortKey="Eriksson, Leif A" sort="Eriksson, Leif A" uniqKey="Eriksson L" first="Leif A" last="Eriksson">Leif A. Eriksson</name>
<name sortKey="Fernandez Apico, Martin E" sort="Fernandez Apico, Martin E" uniqKey="Fernandez Apico M" first="Martin E" last="Fernandez-Zapico">Martin E. Fernandez-Zapico</name>
<name sortKey="Fessart, Delphine" sort="Fessart, Delphine" uniqKey="Fessart D" first="Delphine" last="Fessart">Delphine Fessart</name>
<name sortKey="Horberg, Johanna" sort="Horberg, Johanna" uniqKey="Horberg J" first="Johanna" last="Hörberg">Johanna Hörberg</name>
<name sortKey="Hou, Wenyang" sort="Hou, Wenyang" uniqKey="Hou W" first="Wenyang" last="Hou">Wenyang Hou</name>
<name sortKey="Hrstka, Roman" sort="Hrstka, Roman" uniqKey="Hrstka R" first="Roman" last="Hrstka">Roman Hrstka</name>
<name sortKey="Hupp, Ted" sort="Hupp, Ted" uniqKey="Hupp T" first="Ted" last="Hupp">Ted Hupp</name>
<name sortKey="Jansen, Gregor" sort="Jansen, Gregor" uniqKey="Jansen G" first="Gregor" last="Jansen">Gregor Jansen</name>
<name sortKey="Jerome Ajewska, Loydie" sort="Jerome Ajewska, Loydie" uniqKey="Jerome Ajewska L" first="Loydie" last="Jerome-Majewska">Loydie Jerome-Majewska</name>
<name sortKey="Maurel, Marion" sort="Maurel, Marion" uniqKey="Maurel M" first="Marion" last="Maurel">Marion Maurel</name>
<name sortKey="Obacz, Joanna" sort="Obacz, Joanna" uniqKey="Obacz J" first="Joanna" last="Obacz">Joanna Obacz</name>
<name sortKey="Ogier Enis, Eric" sort="Ogier Enis, Eric" uniqKey="Ogier Enis E" first="Eric" last="Ogier-Denis">Eric Ogier-Denis</name>
<name sortKey="Papadodima, Olga" sort="Papadodima, Olga" uniqKey="Papadodima O" first="Olga" last="Papadodima">Olga Papadodima</name>
<name sortKey="Pilalis, Eleftherios" sort="Pilalis, Eleftherios" uniqKey="Pilalis E" first="Eleftherios" last="Pilalis">Eleftherios Pilalis</name>
<name sortKey="Samali, Afshin" sort="Samali, Afshin" uniqKey="Samali A" first="Afshin" last="Samali">Afshin Samali</name>
<name sortKey="Sommerova, Lucia" sort="Sommerova, Lucia" uniqKey="Sommerova L" first="Lucia" last="Sommerova">Lucia Sommerova</name>
<name sortKey="Tavernier, Jan" sort="Tavernier, Jan" uniqKey="Tavernier J" first="Jan" last="Tavernier">Jan Tavernier</name>
<name sortKey="Thomas, David Y" sort="Thomas, David Y" uniqKey="Thomas D" first="David Y" last="Thomas">David Y. Thomas</name>
<name sortKey="Tourneur Arsille, Julien" sort="Tourneur Arsille, Julien" uniqKey="Tourneur Arsille J" first="Julien" last="Tourneur-Marsille">Julien Tourneur-Marsille</name>
<name sortKey="Treton, Xavier" sort="Treton, Xavier" uniqKey="Treton X" first="Xavier" last="Treton">Xavier Treton</name>
</noCountry>
</tree>
</affiliations>
</record>

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