Relaxin Receptor LGR7 (RXFP1) Is Regulated by Estrogen

Abstract

Estrogen regulates LGR7 (RXFP1) mRNA expression in an in vitro model of human term pregnancy cervix that utilizes lower uterine segment fibroblasts. LGR7 mRNA levels were increased by estradiol to mean levels of 152%+/- 5.9% above those in untreated control cells. Therefore, estradiol may amplify relaxin's actions in the cervix.