|
ИСТИНА |
Войти в систему Регистрация |
ИСТИНА ЦЭМИ РАН |
||
miR-92a regulates angiogenic activity of adipose-derived mesenchymal stromal cellsстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 11 января 2016 г.
- Авторы: Natalia Kalinina, Galina Klink, Eugeniy Glukhanyuk, Tatiana Lopatina, Anastassia Efimenko, Zhanna Akopyan, Vsevolod Tkachuk
- Журнал: Experimental Cell Research
- Том: 339
- Номер: 1
- Год издания: 2015
- Издательство: Academic Press
- Местоположение издательства: United States
- Первая страница: 61
- Последняя страница: 66
- DOI: 10.1016/j.yexcr.2015.10.007
- Аннотация: Mesenchymal stromal cells including those from adipose tissue (MSCs) regulate angiogenesis in adult tissues. MicroRNAs (miRs), small noncoding RNAs that control gene expression by binding to target mRNAs, reducing their stability and/or inhibiting translation, appear to be important regulators of blood vessel growth. In this study, we examined the impact of angio-miRs on paracrine activities of MSCs. Using Illumina microarrays we found that miR-92a is the one of the most abundant angio-miRs in human MSCs. We transfected MSC with pre-miR-92a or anti-miR-92a which led to the coordinated changes of known miR-92a target mRNA levels. Then we tested the ability of conditioned medium from transfected cells to stimulate tube formation by HUVECs. MSC overexpressing miR-92a completely lost the ability to stimulate tubes formation by endothelial cells. However, knocking-out miR-92a by transfection with anti-miR-92a did not increase the ability of MSC to stimulate tube formation. Secretion of hepatocyte growth factor (HGF) and angiopoetin-1 was significantly lower in the medium of miR-92a overexpressing MSC, whereas VEGF secretion did not change significantly. The replenishment of HGF but not angiopoietin-1 has restored the ability of conditioned medium from miR-92a overexpressing MSC to stimulate the tube formation. We conclude that overexpression of miR-92a in MSC suppresses angiogenic properties of these cells by down-regulation of HGF secretion.
- Добавил в систему: Калинина Наталья Игоревна