Detailed Information on Publication Record
2023
Dynamic release of neuronal extracellular vesicles containing miR-21a-5p is induced by hypoxia
KORVENLAITA, Nea, Mireia GOMEZ-BUDIA, Flavia SCOYNI, Cristiana PISTONO, Luca GIUDICE et. al.Basic information
Original name
Dynamic release of neuronal extracellular vesicles containing miR-21a-5p is induced by hypoxia
Authors
KORVENLAITA, Nea (guarantor), Mireia GOMEZ-BUDIA, Flavia SCOYNI, Cristiana PISTONO, Luca GIUDICE, Shaila EAMEN, Sanna LOPPI, de Sande Ana HERNANDEZ, Benjamin HUREMAGIC, Maria BOUVY-LIIVRAND, Merja HEINANIEMI, Minna U KAIKKONEN, Lesley CHENG, Andrew F HILL, Katja M KANNINEN, Guido W JENSTER, Martin E VAN ROYEN, Laura RAMIRO, Joan MONTANER, Tereza BÁŤKOVÁ (203 Czech Republic, belonging to the institution), Robert MIKULÍK (203 Czech Republic, belonging to the institution), Rosalba GIUGNO, Jukka JOLKKONEN, Paula KORHONEN and Tarja MALM
Edition
Journal of Extracellular Vesicles, HOBOKEN, WILEY, 2023, 2001-3078
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
30210 Clinical neurology
Country of publisher
United States of America
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
Impact factor
Impact factor: 16.000 in 2022
RIV identification code
RIV/00216224:14110/23:00132277
Organization unit
Faculty of Medicine
UT WoS
000906496700001
Keywords in English
biomarkers; extracellular vesicle; hypoxia; ischemic stroke; miR-21a-5p; neuron
Tags
International impact, Reviewed
Změněno: 15/11/2023 14:34, Mgr. Tereza Miškechová
Abstract
V originále
Hypoxia induces changes in the secretion of extracellular vesicles (EVs) in several non-neuronal cells and pathological conditions. EVs are packed with biomolecules, such as microRNA(miR)-21-5p, which respond to hypoxia. However, the true EV association of miR-21-5p, and its functional or biomarker relevance, are inadequately characterised. Neurons are extremely sensitive cells, and it is not known whether the secretion of neuronal EVs and miR-21-5p are altered upon hypoxia. Here, we characterised the temporal EV secretion profile and cell viability of neurons under hypoxia. Hypoxia induced a rapid increase of miR-21a-5p secretion in the EVs, which preceded the elevation of hypoxia-induced tissue or cellular miR-21a-5p. Prolonged hypoxia induced cell death and the release of morphologically distinct EVs. The EVs protected miR-21a-5p from enzymatic degradation but a remarkable fraction of miR-21a-5p remained fragile and non-EV associated. The increase in miR-21a-5p secretion may have biomarker potential, as high blood levels of miR-21-5p in stroke patients were associated with significant disability at hospital discharge. Our data provides an understanding of the dynamic regulation of EV secretion from neurons under hypoxia and provides a candidate for the prediction of recovery from ischemic stroke.