Abstract
To determine the effect of human corticotrophin-releasing hormone (CRH) on the expression of connexin-43 phosphate (P-Cx43) in human myometrial smooth muscle cells (SMCs) and the function of cell gap junction intercellular communication in SMCs. Human non-conceive myometial SMCs were cultured with different concentrations of CRH (0, 5.85, 58.5, 585 and 5850 pmol/L). Western blot was used to test P-Cx43 and Cx43 non-phosphate (NP-Cx43) of protein expression. Cell scratch was used to test cell gap junction intercellular communication opening status in human myometrial SMCs. Compared with the control group, the expression of P-Cx43 was higher in the CRH groups (P<0.01), and was concentration-dependent. There was no significant difference in NPCx43 between the control group and the CRH groups (P>0.05). The transmission of cell layers in the CRH groups was higher than that in the control group (P<0.01), and as the concentration of CRH increased, the time was concentration-dependent (P<0.01). CRH can enhance the expression of P-Cx43 and the function of gap junction intercellular communication in the primary cultured myometrial SMCs.
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