Matrix metalloproteinase-2 (MMP-2), MMP-9, tissue inhibitor of matrix metalloproteinases (TIMP-1) and transforming growth factor-β2 (TGF-β2) expression in eutopic endometrium of women with peritoneal endometriosis

• Published in: Annals of Agricultural and Environmental Medicine Vol. 23; no. 4; pp. 649 - 653
• Main Authors: Szymanowski, Krzysztof, Mikołajczyk, Mateusz, Wirstlein, Przemysław, Dera-Szymanowska, Anna
• Format: Journal Article
• Language: English
• Published: Poland Institute of Rural Health 23.12.2016
• Subjects: Adult; Biopsy; Collagenases - genetics; Collagenases - metabolism; Densitometry; Endometriosis; Endometriosis - enzymology; Endometriosis - genetics; Endometriosis - physiopathology; Endometrium; Endometrium - metabolism; Female; Gelatinase A; Gelatinase B; Gene expression; Gene Expression Regulation; Histology; Humans; Infertility; Matrix metalloproteinase; matrix metalloproteinases; Metalloproteinase; Peritoneum; Polymerase chain reaction; Progesterone; Statistics; tissue inhibitor of matrix metalloproteinases; Tissue inhibitor of metalloproteinase 1; Tissue Inhibitor of Metalloproteinase-1 - genetics; Tissue Inhibitor of Metalloproteinase-1 - metabolism; Transforming Growth Factor beta2 - genetics; Transforming Growth Factor beta2 - metabolism; Young Adult
• ISSN: 1232-1966; 1898-2263
• DOI: 10.5604/12321966.1226861

The prevalence of endometriosis among reproductive age women is 7-17%; however, these figures reach 20-50% in patients suffering from infertility. Matrix metalloproteinases (MMPs) activity is thought to be particularly essential in the early phases of endometriosis development. Any changes in the equilibrium between MMPs activity and their tissue inhibitors (TIMPs) could be potentially harmful, promoting endometriosis development. The aim of this study was to investigate whether the MMP-2, MMP-9, TIMP-1 or TGF-B2 expression in eutopic endometrium from women with early endometriosis differ when compared with healthy subjects. The results were referred to the serum progesterone levels. Endometrial biopsy was taken from 42 patients (18 in the study group, 22 in thecontrol group) at the time of hysteroscopy for routine histology and for RT-PCR procedures. Comparison of the quantity of gene products was performed with a programme for densitometry and compared to GADPH product, which was a reference value. The obtained results did not reveal any statistical difference in endometrial expression of MMP-2, MMp-9, TIMP-1, and TGF-β2 or serum progesterone level between women with endometriosis and without visible signs of this illness. Despite the lack of statistical differences, it was observed that both examined metalloproteinases expressed a tendency to higher gene expression in the eutopic endometrium of women with endometriosis. However, both TIMP-1 and TGF-β2 expressions had the same tendency - higher values in endometriosis patients.