Volume 78, Issue 2 e12670
SPECIAL ISSUE

Expression of TWIST in the first-trimester trophoblast and decidual tissue of women with recurrent pregnancy losses

Jin Hee Ahn

Jin Hee Ahn

Laboratory of Reproductive Medicine, Cheil General Hospital & Women's Healthcare Center, College of Medicine, Dankook University, Seoul, Korea

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Hye Ran Park

Hye Ran Park

Laboratory of Reproductive Medicine, Cheil General Hospital & Women's Healthcare Center, College of Medicine, Dankook University, Seoul, Korea

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Chan-Woo Park

Chan-Woo Park

Department of Obstetrics and Gynecology, Cheil General Hospital & Women's Healthcare Center, College of Medicine, Dankook University, Seoul, Korea

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Dong-Wook Park

Corresponding Author

Dong-Wook Park

Laboratory of Reproductive Medicine, Cheil General Hospital & Women's Healthcare Center, College of Medicine, Dankook University, Seoul, Korea

Correspondence:

Dong-Wook Park, PhD, Laboratory of Reproductive Medicine, Cheil General Hospital & Women's Healthcare Center, Dankook University, College of Medicine, Seoul, Korea.

Email: [email protected]

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Joanne Kwak-Kim

Joanne Kwak-Kim

Reproductive Medicine, Department of Obstetrics and Gynecology, Chicago Medical School at Rosalind Franklin University of Medicine and Science, Vernon Hills, IL, USA

Department of Microbiology and Immunology, Chicago Medical School at Rosalind Franklin University of Medicine and Science, North Chicago, IL, USA

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First published: 24 March 2017
Citations: 6

Abstract

Problem

In this study, we aim to investigate if the expression of TWIST in the first-trimester placenta and decidua has any association with spontaneous abortion (SAB) and recurrent pregnancy losses (RPL).

Methods

Expression of TWIST was measured in the first-trimester trophoblast and decidual tissues using RT-PCR and immunohistochemistry. Women with a pregnancy loss comprised the study group (AB group) including women with two or more recurrent pregnancy loses (RPL group), and women with a spontaneous abortion who had no history of previous pregnancy losses (SAB group). Controls were women with elective abortion of normal pregnancy (NP group).

Results

In in-vitro culture study of endometrial cells, expression of TWIST was detected with the induction of decidualization. In syncytiotrophoblast, expression of TWIST in NP group was significantly higher than that of AB group. RPL group had no expression of TWIST, both in the nucleus and cytoplasm of syncytiotrophoblast. In decidual tissue, majority of TWIST was expressed on the decidual stromal cells. NP group showed significantly higher expression of TWIST in cytoplasm and nucleus as compared with those of SAB group.

Conclusion

This suggests that TWIST may have a functional role in decidualization of endometrial cells and syncytialization of cytotrophoblast cells.

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