CALD1

Caldesmon (CDM) [CAD] [CDM]

PublicationsПравить

Expression of genes encoding smooth muscle contractile proteins in vaginal tissue of women with and without pelvic organ prolapse.

PubMed

Full text

We hypothesize that the expression of genes encoding vaginal smooth muscle (SM) contractile proteins is altered in patients with pelvic organ prolapse (POP) and is influenced by age and menopausal status. We aim to analyze the expression of SM-myosin heavy chain (MHY11), caldesmon (CALD1), SM gamma-actin (ACTG2), and tropomyosin (TPM1), in premenopausal and postmenopausal women with advanced POP and asymptomatic controls. During total hysterectomy we collected anterior vaginal wall biopsy samples from 55 women, 37 premenopausal (23 patients and 14 controls), and 18 postmenopausal women (13 patients and 5 controls). Total mRNA from the tissues was quantified by real-time RT-PCR. MHY11 gene expression was down-regulated in premenopausal POP patients compared to premenopausal controls (fivefold, P = 0.002). In the postmenopausal groups, we observed a sixfold increase in the CALD1 gene expression in POP patients compared to asymptomatic controls (P = 0.03). The gene expression of CALD1, ACTG2, and TPM1 was significantly down-regulated in vaginal tissue of healthy women after menopause (P < 0.05). Dysregulation of the vaginal SM content in POP patients involves alteration of different cellular pathways according to age and menopausal status.

MeSH Terms

Actins
Adult
Aged
Aging
Biopsy
Calmodulin-Binding Proteins
Case-Control Studies
Down-Regulation
Female
Gene Expression Regulation
Humans
Middle Aged
Muscle Contraction
Muscle Proteins
Muscle, Smooth
Myosin Heavy Chains
Pelvic Organ Prolapse
Postmenopause
RNA, Messenger
Tropomyosin
Vagina