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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Nature Portfolio
2017
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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) |
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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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