作者: Guozhu Ning , Xiuli Liu , Miaomiao Dai , Anming Meng , Qiang Wang
DOI: 10.1016/J.DEVCEL.2012.12.016
关键词: Chondrogenesis 、 Cartilage 、 Cell biology 、 Cellular differentiation 、 Cartilage metabolism 、 microRNA 、 Biology 、 Progenitor cell 、 Ectopic expression 、 Anatomy 、 Signal transduction
摘要: Craniofacial malformations are common structural birth defects and usually associate with abnormal development of pharyngeal arches. Although some microRNAs have been found to be implicated in chondrogenesis in vitro, few shown essential for cartilage bone at the whole organism level. In this study, we report that mir92a is highly enriched chondrogenic progenitors its inactivation results loss elements due poor proliferation, impaired differentiation, unsustainable survival progenitors. The Bmp antagonist gene noggin3 (nog3) a direct target mir92a. Inactivation stabilizes nog3 mRNA, leading repression signaling behaviors contrast, ectopic expression duplex decreases mRNA levels and, as result, derepresses promotes cell apoptosis. Therefore, acts maintain activity during formation by targeting nog3.