Presence of diabetes autoantigens in extracellular vesicles derived from human islets

Abstract Beta-cell (β-cell) injury is the hallmark of autoimmune diabetes. However, the mechanisms by which autoreactive responses are generated in susceptible individuals are not well understood. Extracellular vesicles (EV) are produced by mammalian cells under normal and stressed physiological sta...

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Autores principales: Craig P. Hasilo, Sarita Negi, Isabelle Allaeys, Nathalie Cloutier, Alissa K. Rutman, Marco Gasparrini, Éric Bonneil, Pierre Thibault, Éric Boilard, Steven Paraskevas
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Publicado: Nature Portfolio 2017
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Acceso en línea:https://doaj.org/article/5cc65e26c9a04fa5a780db8b66742e77
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spelling oai:doaj.org-article:5cc65e26c9a04fa5a780db8b66742e772021-12-02T12:32:41ZPresence of diabetes autoantigens in extracellular vesicles derived from human islets10.1038/s41598-017-04977-y2045-2322https://doaj.org/article/5cc65e26c9a04fa5a780db8b66742e772017-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-04977-yhttps://doaj.org/toc/2045-2322Abstract Beta-cell (β-cell) injury is the hallmark of autoimmune diabetes. However, the mechanisms by which autoreactive responses are generated in susceptible individuals are not well understood. Extracellular vesicles (EV) are produced by mammalian cells under normal and stressed physiological states. They are an important part of cellular communication, and may serve a role in antigen processing and presentation. We hypothesized that isolated human islets in culture produce EV that contain diabetes autoantigens (DAA) from these otherwise normal, non-diabetic donors. Here we report the caspase-independent production of EV by human islets in culture, and the characterization of DAA glutamic acid decarboxylase 65 (GAD65) and zinc transporter 8 (ZnT8), as well as the β-cell resident glucose transporter 2 (Glut2), present within the EV.Craig P. HasiloSarita NegiIsabelle AllaeysNathalie CloutierAlissa K. RutmanMarco GasparriniÉric BonneilPierre ThibaultÉric BoilardSteven ParaskevasNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-14 (2017)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Craig P. Hasilo
Sarita Negi
Isabelle Allaeys
Nathalie Cloutier
Alissa K. Rutman
Marco Gasparrini
Éric Bonneil
Pierre Thibault
Éric Boilard
Steven Paraskevas
Presence of diabetes autoantigens in extracellular vesicles derived from human islets
description Abstract Beta-cell (β-cell) injury is the hallmark of autoimmune diabetes. However, the mechanisms by which autoreactive responses are generated in susceptible individuals are not well understood. Extracellular vesicles (EV) are produced by mammalian cells under normal and stressed physiological states. They are an important part of cellular communication, and may serve a role in antigen processing and presentation. We hypothesized that isolated human islets in culture produce EV that contain diabetes autoantigens (DAA) from these otherwise normal, non-diabetic donors. Here we report the caspase-independent production of EV by human islets in culture, and the characterization of DAA glutamic acid decarboxylase 65 (GAD65) and zinc transporter 8 (ZnT8), as well as the β-cell resident glucose transporter 2 (Glut2), present within the EV.
format article
author Craig P. Hasilo
Sarita Negi
Isabelle Allaeys
Nathalie Cloutier
Alissa K. Rutman
Marco Gasparrini
Éric Bonneil
Pierre Thibault
Éric Boilard
Steven Paraskevas
author_facet Craig P. Hasilo
Sarita Negi
Isabelle Allaeys
Nathalie Cloutier
Alissa K. Rutman
Marco Gasparrini
Éric Bonneil
Pierre Thibault
Éric Boilard
Steven Paraskevas
author_sort Craig P. Hasilo
title Presence of diabetes autoantigens in extracellular vesicles derived from human islets
title_short Presence of diabetes autoantigens in extracellular vesicles derived from human islets
title_full Presence of diabetes autoantigens in extracellular vesicles derived from human islets
title_fullStr Presence of diabetes autoantigens in extracellular vesicles derived from human islets
title_full_unstemmed Presence of diabetes autoantigens in extracellular vesicles derived from human islets
title_sort presence of diabetes autoantigens in extracellular vesicles derived from human islets
publisher Nature Portfolio
publishDate 2017
url https://doaj.org/article/5cc65e26c9a04fa5a780db8b66742e77
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