Expression and Potential Role of MMP‐9 in Intrauterine Adhesion

作者：Congqing Li, Wenyan Wang, Shiying Sun, Youjiang Xu, Zi-Ang Fang, Lin Cong · 发表于：Mediators of Inflammation · 年份：2021 · DOI：10.1155/2021/6676510 · 被引用次数：28 · 研究领域：Gynecological conditions and treatments、Intestinal and Peritoneal Adhesions、Reproductive System and Pregnancy

Objective . Intrauterine adhesions affect menstruation and fertility, and endometrial fibrosis is the final manifestation of IUA. MMP‐9 is closely related to fibrosis. The purpose of the study was to assess the role of MMP‐9 in intrauterine adhesion (IUA) in rats and patients. Methods . 40 rats and 24 women were enrolled in this study. 40 rats were randomly divided into 3 groups: IUA group ( n = 20), sham group ( n = 10), and control group ( n = 10). Rat IUA models were established by intrauterine mechanical and chemical injured. In this study, 12 patients of intrauterine adhesions were detected and underwent TCRA (transcervical resection of adhesion) surgery, and endometrial tissue specimens were obtained during operation. One month later, an office hysteroscopy procedure was performed, and endometrial tissue specimens were obtained during operation again (postoperative group). A group of 12 normal age‐matched control individuals served as controls underwent hysteroscopy and endometrial sampling. We used immunohistochemistry to detect MMP‐9 expressions in rats and human endometrial tissues and to detect MMP‐9 protein levels by Western blotting. In addition, we detected mRNA expression levels with qRT‐PCR. Results . The expression of MMP‐9 in the IUA rats was reduced compared with that in the sham group and Ctrl group ( P < 0.05), and the expression of MMP‐9 was also reduced in the IUA patients compared with that in the Ctrl group ( P < 0.05). The mRNA levels of MMP‐9 i...