Premium
Bone Morphogenetic Protein‐10 Induces Cardiomyocyte Proliferation and Improves Cardiac Function After Myocardial Infarction
Author(s) -
Sun Lijun,
Yu Jing,
Qi Shun,
Hao Yuewen,
Liu Ying,
Li Zhenwu
Publication year - 2014
Publication title -
journal of cellular biochemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.028
H-Index - 165
eISSN - 1097-4644
pISSN - 0730-2312
DOI - 10.1002/jcb.24856
Subject(s) - bone morphogenetic protein , microbiology and biotechnology , bone morphogenetic protein 2 , cardiac function curve , cell growth , cell cycle , heart development , myocardial infarction , medicine , cardiology , heart failure , biology , in vitro , embryonic stem cell , biochemistry , genetics , cancer , gene
Heart disease is among the leading causes of death worldwide, and the limited proliferation of mammalian cardiomyocytes prevents heart regeneration in response to injury. Bone morphogenetic protein‐10 (BMP10) exerts multiple roles in various developmental events; however, the effect of BMP10 and the underlying mechanism involved in cardiac repair remains unclear. After stimulation with the recombinant BMP10, an obvious dose‐dependent cardiomyocyte proliferation and reentry of differentiated mammalian cardiomyocytes into the cell cycle was observed. Furthermore, BMP10 stimulation strikingly enhanced Tbx20 expression. Further analysis demonstrated that T‐box 20 (Tbx20) was involved in BMP10‐induced proliferation of differentiated cardiomyocytes as preconditioning with Tbx20 siRNA significantly attenuated BMP10‐induced DNA synthesis. In vivo, BMP10 induced rat cardiomyocyte DNA synthesis and cytokinesis. After myocardial infarction (MI), BMP10 stimulated cardiomyocyte cell‐cycle reentry and mitosis, resulting in the decrease of infarct size and improvement of cardiac repair. Taken together, these data indicated that BMP10 stimulated cardiomyocyte proliferation and repaired cardiac function after heart injury. Consequently, BMP10 may be a potential target for innovative strategies against heart failure. J. Cell. Biochem. 115: 1868–1876, 2014. © 2014 Wiley Periodicals, Inc.