Aberrant expressions of endometrial Id3 and CTLA-4 are associated with unexplained repeated implantation failure and recurrent miscarriage

作者：Ding, Jin-Li; Diao, Liang-Hui; Yin, Tai-Lang; Huang, Chun-Yu; Yin, Biao; Chen, Cong; Zhang, Yi; Li, Jie; Cheng, Yan-Xiang; Zeng, Yong^*; Yang, Jing^*

来源：American Journal of Reproductive Immunology, 2017, 78(2): e12632.

DOI：10.1111/aji.12632

• CD34
• cytotoxic T-lymphocyte-associated protein 4 (CTLA-4)
• forkhead box P3 (FOXP3)
• inhibitor of DNA-binding protein 3 (Id3)
• recurrent miscarriage (RM)
• repeated implantation failure (RIF)

Inhibitor of DNA-binding protein 3 (Id3) is required for tumor angiogenesis and regulatory T-cell generation. However, the involvement of Id3 in unexplained repeated implantation failure (RIF) and recurrent miscarriage (RM) remains poorly understood. Immunohistochemistry was used to identify Id3, CD34, CTLA-4, and FOXP3 in the endometrium taken from the women with RIF (n=16), RM (n=16) and matched controls (n=8). The images were acquired and analyzed by the Vectra((R)) automated quantitative pathology imaging system. Percentage of Id3(+) cells was significantly higher in the endometrium of women with RIF and RM compared with controls. The numbers of Id3(+) and CD34(+) vessels in the endometrium were positively correlated in control but not in RIF or RM. Percentages of CTLA-4(+) cells, but not FOXP3(+) cells, were significantly increased in the endometrium of RIF and RM women than those in controls. We found aberrant expressions of endometrial Id3 and CTLA-4 in peri-implantation endometrium of women with RIF and RM, suggesting the negative roles of these angiogenesis and immune tolerance markers involving in regulating endometrium receptivity.

• 出版日期2017-8
• 单位武汉大学