Cell and tissue research · 2022
Downregulation of CDC42 inhibits the proliferation and stemness of human trophoblast stem cell via EZRIN/YAP inactivation.
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Shilei Bi, Lizi Zhang, Lijun Huang, Weixu Ma, Nan Meng, Weinan Deng, Yulian Li, Yingyu Liang, Minshan Huang, Pei Xu, Mingxing Liu, Jingsi Chen, Zhaowei Tu, Zhijian Wang, Haibin Wang, Jinhua Lu, Dunjin Chen, Lili Du
Аннотация
Placental dysplasia increases the risk of recurrent spontaneous abortion (RSA). However, the underlying mechanism regulating placental development remains unclear. In this study, we showed that the expression of CDC42 was decreased in the villous tissue of RSA samples compared to healthy controls. Further examination demonstrated that CDC42 deficiency led to the differentiation of human trophoblast stem cells (hTSCs) and inhibited their proliferation. Genetic manipulation of YAP and EZRIN in hTSCs revealed that CDC42 regulates the stemness and proliferation of hTSCs; this is dependent on EZRIN, which translocates YAP into the nucleus. Moreover, the expression pattern of EZRIN, YAP, and Ki67 was also abnormal in the villous tissue of RSA samples, consistent with in vitro experiments. In summary, these findings suggest that the CDC42/EZRIN/YAP pathway plays an important role in placental development.