Journal of International Reproductive Health/Family Planning ›› 2023, Vol. 42 ›› Issue (3): 254-260.doi: 10.12280/gjszjk.20220509

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Research Progress of Recurrent Spontaneous Abortion Caused by Abnormal Immune Microenvironment at the Maternal-Fetal Interface

SU Dan-na, DIAO Rui-ying, SHE Jia-jie, SHUAI Ling, GUO Yan, LI Dong-dong, YE Xiao-feng, WANG Li-ping()   

  1. Department of Reproductive Medicine, First Affiliated Hospital of Shenzhen University, Shenzhen 518035, Guangdong Province, China
  • Received:2022-10-28 Published:2023-05-15 Online:2023-05-18
  • Contact: WANG Li-ping E-mail:wlilyu@hotmail.com

Abstract:

Maternal recognition of embryos and the establishment of immune tolerance are necessary conditions for pregnancy. The essence of immune tolerance at the maternal-fetal interface is that embryonic trophoblast cells, decidual stromal cells and decidual immune cells jointly participate in the process of maternal-fetal dialogue, promoting the transformation of the immune microenvironment and the establishment of adaptive immunity at the maternal-fetal interface, such as trophoblast cell infiltration, spiral artery remodeling, maternal-fetal immune tolerance establishment and so on. The imbalanced immune homeostasis caused by abnormal maternal-fetal immune microenvironment is an important cause of recurrent spontaneous abortion (RSA). Abnormal maternal-fetal immune microenvironment includes excessive immune inflammatory response, the impaired immune tolerance, and the oscillation of maternal-fetal immune microenvironment. Therefore, immunomodulation should be one of the core strategies for the treatment of RSA, including the application of immunosuppressants, immunomodulatory drugs, and active lymphocyte immunotherapy. However, the efficacy of immunomodulation needs to be verified by more high-quality evidence from evidence-based medicine.

Key words: Maternal-fetal interface, Immune tolerance, Immune microenviroment, Abortion, habitual, Immunomodulation