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Hmgn1 acts downstream of C/EBP beta to regulate the decidualization of uterine stromal cells in mice

文献类型: 外文期刊

作者: Li, Dang-Dang 1 ; Yang, Zhan-Qing 1 ; Guo, Chuan-Hui 1 ; Yue, Liang 2 ; Duan, Cui-Cui 3 ; Cao, Hang 1 ; Guo, Bin 1 ; Yue, 1 ;

作者机构: 1.Jilin Univ, Coll Vet Med, Changchun 130023, Peoples R China

2.Jilin Univ, Coll Clin Med, Changchun 130023, Peoples R China

3.Jilin Acad Agr Sci, Inst Agrofood Technol, Changchun, Peoples R China

关键词: decidualization;Hmgn1;mouse;stromal cell;uterus

期刊名称:CELL CYCLE ( 影响因子:4.534; 五年影响因子:4.492 )

ISSN:

年卷期:

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收录情况: SCI

摘要: Although Hmgn1 is involved in the regulation of gene expression and cellular differentiation, its physiological roles on the differentiation of uterine stromal cells during decidualization still remain unknown. Here we showed that Hmgn1 mRNA was highly expressed in the decidua on days 6-8 of pregnancy. Simultaneously, increased expression of Hmgn1 was also observed in the artificial and in vitro induced decidualization models. Hmgn1 induced the proliferation of uterine stromal cells and expression of Ccna1, Ccnb1, Ccnb2 and Cdk1 in the absence of estrogen and progesterone. Overexpression of Hmgn1 could enhance the expression of Prl8a2 and Prl3c1 which were 2 well-known differentiation markers for decidualization, whereas inhibition of Hmgn1 with specific siRNA could reduce their expression. Further studies found that Hmgn1 could mediate the effects of C/EBP on the expression of Prl8a2 and Prl3c1 during in vitro decidualization. In the uterine stromal cells, cAMP analog 8-Br-cAMP could stimulate the expression of Hmgn1 via C/EBP. Moreover, siRNA-mediated down-regulation of Hmgn1 could attenuate the effects of cAMP on the differentiation of uterine stromal cells. During in vitro decidualization, Hmgn1 might act downstream of C/EBP to regulate the expression of Cox-2, mPGES-1 and Vegf. Progesterone could up-regulate the expression of Hmgn1 in the ovariectomized mouse uterus, uterine epithelial cells and stromal cells. Knockdown of C/EBP with siRNA alleviated the up-regulation of progesterone on Hmgn1 expression. Collectively, Hmgn1 may play an important role during mouse decidualization.

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[1]Expression, regulation and function of Hmgn3 during decidualization in mice. Li, Dang-Dang,Guo, Chuan-Hui,Yang, Zhan-Qing,Cao, Hang,Guo, Bin,Yue, Zhan-Peng,Yue, Liang,Duan, Cui-Cui. 2015

[2]Hmgn5 functions downstream of Hoxa10 to regulate uterine decidualization in mice. Li, Dang-Dang,Zhao, Shu-Yi,Yang, Zhan-Qing,Guo, Chuan-Hui,Zhang, Hong-Liang,Geng, Shuang,Yue, Zhan-Peng,Guo, Bin,Duan, Cui-Cui.

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