Journal
FRONTIERS IN IMMUNOLOGY
Volume 12, Issue -, Pages -Publisher
FRONTIERS MEDIA SA
DOI: 10.3389/fimmu.2021.682948
Keywords
extracellular vesicles; exosomes; type 1 diabetes; autoimmunity; immune regulation; pancreatic islets
Categories
Funding
- Innovative Medicines Initiative 2 (IMI2) Joint Undertaking [115797, 945268]
- EFPIA
- JDRF
- Leona M. and Harry B. Helmsley Charitable Trust
- PON Ricerca e Innovazione [ARS01_01270-IDF]
- Italian Ministry of University and Research [2017KAM2R5_003, 201793XZ5A_006]
- Italian ministry of Health (PROMETEO)
- Italian Ministry of Health Ricerca Finalizzata [GR2018-12365577]
- Union's Horizon 2020 research and innovation programme
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EVs are generated by cells through complex molecular mechanisms and contain molecular cargo such as ncRNA, mRNA, and proteins that modulate biological processes and are altered in diseases including autoimmune diseases. EVs have a promising role as biomarkers in disease progression, with studies showing specific cargo alterations in autoimmune diseases like T1D.
Extracellular vesicles (EVs) are generated by cells of origin through complex molecular mechanisms and released into extracellular environment. Hence, the presence of EVs has been described in multiple biological fluids and in most cases their molecular cargo, which includes non-coding RNAs (ncRNA), messenger RNAs (mRNA), and proteins, has been reported to modulate distinct biological processes. EVs release and their molecular cargo have been demonstrated to be altered in multiple diseases, including autoimmune diseases. Notably, numerous evidence showed a relevant crosstalk between immune system and interacting cells through specific EVs release. The crosstalk between insulin-producing pancreatic beta cells and immune system through EVs bidirectional trafficking has yet started to be deciphered, thus uncovering an intricate communication network underlying type 1 diabetes (T1D) pathogenesis. EVs can also be found in blood plasma or serum. Indeed, the assessment of circulating EVs cargo has been shown as a promising advance in the detection of reliable biomarkers of disease progression. Of note, multiple studies showed several specific cargo alterations of EVs collected from plasma/serum of subjects affected by autoimmune diseases, including T1D subjects. In this review, we discuss the recent literature reporting evidence of EVs role in autoimmune diseases, specifically focusing on the bidirectional crosstalk between pancreatic beta cells and immune system in T1D and highlight the relevant promising role of circulating EVs as disease biomarkers.
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