Extracellular vesicles mediate intercellular communication

• Verfasst von: Claßen, Laura [VerfasserIn]
• Verfasst von: Tykocinski, Lars-Oliver [VerfasserIn]
• Verfasst von: Wiedmann, Felix Tobias [VerfasserIn]
• Verfasst von: Birr, Carolin [VerfasserIn]
• Verfasst von: Schiller, Petra [VerfasserIn]
• Verfasst von: Tucher, Christine [VerfasserIn]
• Verfasst von: Krienke, Stefan [VerfasserIn]
• Verfasst von: Raab, Marc-Steffen [VerfasserIn]
• Verfasst von: Blank, Norbert [VerfasserIn]
• Verfasst von: Lorenz, Hanns-Martin [VerfasserIn]
• Verfasst von: Schiller, Martin [VerfasserIn]
• Titel: Extracellular vesicles mediate intercellular communication
• Titelzusatz: transfer of functionally active microRNAs by microvesicles into phagocytes
• Verf.angabe: Laura Claßen, Lars-Oliver Tykocinski, Felix Wiedmann, Carolin Birr, Petra Schiller, Christine Tucher, Stefan Krienke, Marc-Steffen Raab, Norbert Blank, Hanns-Martin Lorenz and Martin Schiller
• E-Jahr: 2017
• Jahr: 30 June 2017
• Umfang: 15 S.
• Fussnoten: Gesehen am 07.08.2018
• Titel Quelle: Enthalten in: European journal of immunology
• Ort Quelle: Weinheim : Wiley-VCH, 1971
• Jahr Quelle: 2017
• Band/Heft Quelle: 47(2017), 9, Seite 1535-1549
• ISSN Quelle: 1521-4141
• DOI: doi:10.1002/eji.201646595
• Datenträger: Online-Ressource
• Sprache: eng
• Sach-SW: Apoptosis
• Sach-SW: Autoimmune disease
• Sach-SW: MicroRNA
• Sach-SW: Microvesicles
• Sach-SW: SLE
• K10plus-PPN: 1578323827

Abstract

Cell activation and apoptosis lead to the formation of extracellular vesicles (EVs) such as exosomes or microvesicles (MVs). EVs have been shown to modulate immune responses; recently, MVs were described to carry microRNA (miRNA) and a role for MVs in the pathogenesis of autoimmune diseases has been discussed. Here we systematically characterized MVs and exosomes according to their release stimuli. The miRNA content of viable or apoptotic human T lymphocytes and the corresponding MVs was analyzed. miRNA, protein and surface marker expression, as well as cytokine release by human monocytes was measured after EV engulfment. Finally, miRNA expression in T lymphocytes and MVs of healthy individuals was compared with those of systemic lupus erythematosus (SLE) patients. We demonstrate that, depending on the stimuli, distinct subtypes of EVs are released, differing in size and carrying a specific RNA profile. We observed an accumulation of distinct miRNAs in MVs after induction of apoptosis and the transfer of functional miRNA by MVs into human monocytes. MVs released from apoptotic cells provoke less of an inflammatory response than those released from viable cells. MiR-155*, miR-34b and miR-34a levels in T lymphocytes and corresponding MVs were deregulated in SLE when compared to healthy individuals.