Differential expression and regulation of Ido2 in the mouse uterus during peri-implantation period

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• 作者：Dang-Dang Li ; Xin-Yuan Liu ; Chuan-Hui Guo…
• 关键词：Ido2 ; Implantation ; Decidualization ; Uterus ; Mouse
• 刊名：In Vitro Cellular & Developmental Biology - Animal
• 出版年：2015
• 出版时间：March 2015
• 年：2015
• 卷：51
• 期：3
• 页码：264-272
• 全文大小：278 KB
• 参考文献：1. Austin, CJ, Mailu, BM, Maghzal, GJ, Sanchez-Perez, A, Rahlfs, S, Zocher, K, Yuasa, HJ, Arthur, JW, Becker, K, Stocker, R, Hunt, NH, Ball, HJ (2010) Biochemical characteristics and inhibitor selectivity of mouse indoleamine 2,3-dioxygenase-2. Amino Acids 39: pp. 565-578 CrossRef
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• 刊物主题：Cell Biology; Developmental Biology; Stem Cells; Cell Culture; Animal Genetics and Genomics;
• 出版者：Springer US
• ISSN：1543-706X

文摘

Ido2 is involved in tryptophan catabolism and immunity, but its physiological functions remain poorly understood. This study was undertaken to examine the expression and regulation of Ido2 gene in mouse uterus during the peri-implantation period. The results showed that Ido2 mRNA was highly expressed on day 4 of pregnancy and in the delayed implantation uterus. On days 5- of pregnancy, a low level of Ido2 expression was observed in the uteri. Simultaneously, Ido2 mRNA was also lowly expressed in the decidualized uterus. In the uterine stromal cells, 8-Br-cAMP could inhibit the expression of Ido2 mRNA. Moreover, Ido2 mRNA expression was gradually decreased after the stromal cells were treated with estrogen and progesterone and reached a nadir at 96?h. Further study found that overexpression of Ido2 could downregulate the expression of decidualization marker genes PRL, IGFBP1, and Dtprp under in vitro decidualization, while inhibition of Ido2 with devo-1-methyl-tryptophan (D-1-MT) could upregulate the expression of these marker genes. Under in vitro decidualization, overexpression of Ido2 could suppress the proliferation of uterine stromal cells and elevate the expression of Bax and MMP2 genes. On the contrary, Ido2 inhibitor D-1-MT could enhance the proliferation of stromal cells and expression of Bcl2 gene but decline the Bax/Bcl2 ratio. In the uterine stromal cells, estrogen and progesterone could induce the expression of Ido2 mRNA. These data indicate that Ido2 may be important for mouse embryo implantation and decidualization.