La maladie de Parkinson au Canada (serveur d'exploration)

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Parkinson's Disease-Related Proteins PINK1 and Parkin Repress Mitochondrial Antigen Presentation.

Identifieur interne : 000253 ( Main/Exploration ); précédent : 000252; suivant : 000254

Parkinson's Disease-Related Proteins PINK1 and Parkin Repress Mitochondrial Antigen Presentation.

Auteurs : Diana Matheoud [Canada] ; Ayumu Sugiura [Canada] ; Angélique Bellemare-Pelletier [Canada] ; Annie Laplante [Canada] ; Christiane Rondeau [Canada] ; Magali Chemali [Canada] ; Ali Fazel [Canada] ; John J. Bergeron [Canada] ; Louis-Eric Trudeau [Canada] ; Yan Burelle [Canada] ; Etienne Gagnon [Canada] ; Heidi M. Mcbride [Canada] ; Michel Desjardins [Canada]

Source :

RBID : pubmed:27345367

English descriptors

Abstract

Antigen presentation is essential for establishing immune tolerance and for immune responses against infectious disease and cancer. Although antigen presentation can be mediated by autophagy, here we demonstrate a pathway for mitochondrial antigen presentation (MitAP) that relies on the generation and trafficking of mitochondrial-derived vesicles (MDVs) rather than on autophagy/mitophagy. We find that PINK1 and Parkin, two mitochondrial proteins linked to Parkinson's disease (PD), actively inhibit MDV formation and MitAP. In absence of PINK1 or Parkin, inflammatory conditions trigger MitAP in immune cells, both in vitro and in vivo. MitAP and the formation of MDVs require Rab9 and Sorting nexin 9, whose recruitment to mitochondria is inhibited by Parkin. The identification of PINK1 and Parkin as suppressors of an immune-response-eliciting pathway provoked by inflammation suggests new insights into PD pathology.

DOI: 10.1016/j.cell.2016.05.039
PubMed: 27345367


Affiliations:


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<term>Inflammation (metabolism)</term>
<term>Macrophages (pathology)</term>
<term>Mice</term>
<term>Mice, Inbred BALB C</term>
<term>Mice, Inbred C57BL</term>
<term>Mitochondria (immunology)</term>
<term>Parkinson Disease (immunology)</term>
<term>Parkinson Disease (pathology)</term>
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<term>Ubiquitin-Protein Ligases (genetics)</term>
<term>Ubiquitin-Protein Ligases (metabolism)</term>
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<div type="abstract" xml:lang="en">Antigen presentation is essential for establishing immune tolerance and for immune responses against infectious disease and cancer. Although antigen presentation can be mediated by autophagy, here we demonstrate a pathway for mitochondrial antigen presentation (MitAP) that relies on the generation and trafficking of mitochondrial-derived vesicles (MDVs) rather than on autophagy/mitophagy. We find that PINK1 and Parkin, two mitochondrial proteins linked to Parkinson's disease (PD), actively inhibit MDV formation and MitAP. In absence of PINK1 or Parkin, inflammatory conditions trigger MitAP in immune cells, both in vitro and in vivo. MitAP and the formation of MDVs require Rab9 and Sorting nexin 9, whose recruitment to mitochondria is inhibited by Parkin. The identification of PINK1 and Parkin as suppressors of an immune-response-eliciting pathway provoked by inflammation suggests new insights into PD pathology.</div>
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<name sortKey="Matheoud, Diana" sort="Matheoud, Diana" uniqKey="Matheoud D" first="Diana" last="Matheoud">Diana Matheoud</name>
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<name sortKey="Bellemare Pelletier, Angelique" sort="Bellemare Pelletier, Angelique" uniqKey="Bellemare Pelletier A" first="Angélique" last="Bellemare-Pelletier">Angélique Bellemare-Pelletier</name>
<name sortKey="Bergeron, John J" sort="Bergeron, John J" uniqKey="Bergeron J" first="John J" last="Bergeron">John J. Bergeron</name>
<name sortKey="Burelle, Yan" sort="Burelle, Yan" uniqKey="Burelle Y" first="Yan" last="Burelle">Yan Burelle</name>
<name sortKey="Chemali, Magali" sort="Chemali, Magali" uniqKey="Chemali M" first="Magali" last="Chemali">Magali Chemali</name>
<name sortKey="Desjardins, Michel" sort="Desjardins, Michel" uniqKey="Desjardins M" first="Michel" last="Desjardins">Michel Desjardins</name>
<name sortKey="Fazel, Ali" sort="Fazel, Ali" uniqKey="Fazel A" first="Ali" last="Fazel">Ali Fazel</name>
<name sortKey="Gagnon, Etienne" sort="Gagnon, Etienne" uniqKey="Gagnon E" first="Etienne" last="Gagnon">Etienne Gagnon</name>
<name sortKey="Laplante, Annie" sort="Laplante, Annie" uniqKey="Laplante A" first="Annie" last="Laplante">Annie Laplante</name>
<name sortKey="Mcbride, Heidi M" sort="Mcbride, Heidi M" uniqKey="Mcbride H" first="Heidi M" last="Mcbride">Heidi M. Mcbride</name>
<name sortKey="Rondeau, Christiane" sort="Rondeau, Christiane" uniqKey="Rondeau C" first="Christiane" last="Rondeau">Christiane Rondeau</name>
<name sortKey="Sugiura, Ayumu" sort="Sugiura, Ayumu" uniqKey="Sugiura A" first="Ayumu" last="Sugiura">Ayumu Sugiura</name>
<name sortKey="Trudeau, Louis Eric" sort="Trudeau, Louis Eric" uniqKey="Trudeau L" first="Louis-Eric" last="Trudeau">Louis-Eric Trudeau</name>
</country>
</tree>
</affiliations>
</record>

Pour manipuler ce document sous Unix (Dilib)

EXPLOR_STEP=$WICRI_ROOT/Wicri/Canada/explor/ParkinsonCanadaV1/Data/Main/Exploration
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 000253 | SxmlIndent | more

Ou

HfdSelect -h $EXPLOR_AREA/Data/Main/Exploration/biblio.hfd -nk 000253 | SxmlIndent | more

Pour mettre un lien sur cette page dans le réseau Wicri

{{Explor lien
   |wiki=    Wicri/Canada
   |area=    ParkinsonCanadaV1
   |flux=    Main
   |étape=   Exploration
   |type=    RBID
   |clé=     pubmed:27345367
   |texte=   Parkinson's Disease-Related Proteins PINK1 and Parkin Repress Mitochondrial Antigen Presentation.
}}

Pour générer des pages wiki

HfdIndexSelect -h $EXPLOR_AREA/Data/Main/Exploration/RBID.i   -Sk "pubmed:27345367" \
       | HfdSelect -Kh $EXPLOR_AREA/Data/Main/Exploration/biblio.hfd   \
       | NlmPubMed2Wicri -a ParkinsonCanadaV1 

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