J 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.

Základní údaje

Originální název

Dynamic release of neuronal extracellular vesicles containing miR-21a-5p is induced by hypoxia

Autoři

KORVENLAITA, Nea; 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; Robert MIKULÍK; Rosalba GIUGNO; Jukka JOLKKONEN; Paula KORHONEN a Tarja MALM

Vydání

Journal of Extracellular Vesicles, HOBOKEN, WILEY, 2023, 2001-3078

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

30210 Clinical neurology

Stát vydavatele

Spojené státy

Utajení

není předmětem státního či obchodního tajemství

Odkazy

Impakt faktor

Impact factor: 15.500

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14110/23:00132277

Organizační jednotka

Lékařská fakulta

EID Scopus

Klíčová slova anglicky

biomarkers; extracellular vesicle; hypoxia; ischemic stroke; miR-21a-5p; neuron

Štítky

Příznaky

Mezinárodní význam, Recenzováno
Změněno: 15. 11. 2023 14:34, Mgr. Tereza Miškechová

Anotace

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.