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BMP4 in Human Endometrial Stromal Cells Can Affect Decidualization by Regulating FOXO1 Expression
Yanjie Huang1, Fangfang Dai1, Liping Chen1
1Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, People's Republic of China.
Endocrinology
|April 28, 2024
Summary
Bone morphogenetic protein 4 (BMP4) is downregulated in recurrent spontaneous abortion (RSA). Reduced BMP4 impairs decidualization and trophoblast invasion, suggesting BMP4 as a potential target for preventing pregnancy loss.
Area of Science:
- Reproductive Biology
- Developmental Biology
- Genetics
Background:
- Recurrent spontaneous abortion (RSA) affects 2 or more consecutive first-trimester pregnancies.
- The causes of RSA are not fully understood, but defective decidualization is a suspected factor.
- Impaired decidualization can disrupt crucial trophoblast invasion and function.
Purpose of the Study:
- To investigate the role of bone morphogenetic protein 4 (BMP4) in human decidualization.
- To determine the association between BMP4 expression and recurrent spontaneous abortion (RSA).
- To elucidate BMP4's mechanism in regulating decidualization and maternal-fetal interface communication.
Main Methods:
- Assessed BMP4 expression in decidual samples from RSA patients and healthy controls.
- Utilized human embryonic stem cells (hESCs) for in vitro studies on BMP4's effect on decidualization and aging.
- Established a spontaneous abortion mouse model to assess embryo resorption and BMP4 levels.
Main Results:
- BMP4 expression was significantly lower in the decidua of RSA patients compared to controls.
- BMP4 knockdown in vitro led to inadequate decidualization and impaired aging processes.
- BMP4 regulates decidualization and aging via FOXO1, and its loss hinders trophoblast invasion.
- BMP4 downregulation was also observed in a mouse model of RSA.
Conclusions:
- Downregulation of BMP4 is evident in both human RSA and a mouse model.
- BMP4 modulates decidualization in human endometrial stromal cells by regulating FOXO1.
- Loss of BMP4 function may contribute to RSA pathogenesis, offering potential targets for prevention.
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