[No authors listed]
OBJECTIVE:This study aimed to investigate RhoA, RhoA-associated coiled-coil containing protein kinase (ROCK) 1, ROCK2, and Rho GTPase-activating protein 26 (ARHGAP26) expression in the eutopic endometrium (EU) and ectopic endometrium (EC), and examine their relationships with the clinical characteristics of adenomyosis. METHODS:Twenty patients with adenomyosis who underwent laparoscopy were recruited. Protein and mRNA expression of RhoA, ROCK1, ROCK2, and ARHGAP26 in EU and EC of patients with adenomyosis and in control endometrium without adenomyosis (CE) was detected. RESULTS:ROCK1, ROCK2, and RhoA mRNA expression in EU was significantly higher than that in CE, and was highest in EC. ARHGAP26 mRNA expression in EC and EU was significantly lower than that in CE. ROCK1, ROCK2, and RhoA protein expression in EC and EU was significantly higher than that in CE. ARHGAP26 protein expression in EC and EU was significantly lower than that in CE. ROCK1, ROCK2, and RhoA gene and protein expression was positively associated and ARHGAP26 was negatively associated with the severity of menorrhagia and menstrual capacity in adenomyosis. CONCLUSIONS:RhoA, ROCK1, and ROCK2 expression is upregulated, and ARHGAP26 expression is downregulated in adenomyosis. The RhoA/ROCK-mediated signaling pathway is associated with dysmenorrhea and menstrual capacity in adenomyosis.
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