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 (garant), 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 Česká republika, domácí), Robert MIKULÍK (203 Česká republika, domácí), 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: 16.000 v roce 2022

Kód RIV

RIV/00216224:14110/23:00132277

Organizační jednotka

Lékařská fakulta

UT WoS

000906496700001

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.