Detailed Information on Publication Record
2016
Melatonin promotes cardiomyogenesis of embryonic stem cells via inhibition of HIF-1 alpha stabilization
KUDOVÁ, Jana, Ondřej VAŠÍČEK, Milan ČÍŽ and Lukáš KUBALABasic information
Original name
Melatonin promotes cardiomyogenesis of embryonic stem cells via inhibition of HIF-1 alpha stabilization
Authors
KUDOVÁ, Jana (203 Czech Republic, belonging to the institution), Ondřej VAŠÍČEK (203 Czech Republic, belonging to the institution), Milan ČÍŽ (203 Czech Republic, belonging to the institution) and Lukáš KUBALA (203 Czech Republic, guarantor, belonging to the institution)
Edition
JOURNAL OF PINEAL RESEARCH, HOBOKEN, WILEY, 2016, 0742-3098
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10601 Cell biology
Country of publisher
United States of America
Confidentiality degree
není předmětem státního či obchodního tajemství
Impact factor
Impact factor: 10.391
RIV identification code
RIV/00216224:14310/16:00097518
Organization unit
Faculty of Science
UT WoS
000386357100007
Keywords in English
cardiomyogenesis; hypoxia-inducible factor-alpha; melatonin; mouse embryonic stem cells
Tags
International impact, Reviewed
Změněno: 20/3/2018 12:59, Mgr. Radek Ševčík, Ph.D.
Abstract
V originále
Melatonin, a molecule involved in the regulation of circadian rhythms, has protective effects against myocardial injuries. However, its capability to regulate the maturation of cardiac progenitor cells is unclear. Recently, several studies have shown that melatonin inhibits the stabilization of hypoxia-inducible factors (HIFs), important signaling molecules with cardioprotective effects. In this study, by employing differentiating mouse embryonic stem cells, we report that melatonin significantly upregulated the expression of cardiac cell-specific markers (myosin heavy chains six and seven) as well as the percentage of myosin heavy chain-positive cells. Importantly, melatonin decreased HIF-1 alpha stabilization and transcriptional activity and, in contrast, induced HIF-2 alpha stabilization. Interestingly, the deletion of HIF-1 alpha completely inhibited the pro-cardiomyogenic effect of melatonin as well as the melatonin-mediated HIF-2 alpha stabilization. Moreover, melatonin increased Sirt-1 levels in a HIF-1 alpha-dependent manner. Taken together, we provide new evidence of a time-specific inhibition of HIF-1 alpha stabilization as an essential feature of melatonin-induced cardiomyogenesis and unexpected different roles of HIF-1 alpha stabilization during various stages of cardiac development. These results uncover new mechanisms underlying the maturation of cardiac progenitor cells and can help in the development of novel strategies for using melatonin in cardiac regeneration therapy.