Immunohistochemical Features of O6-Methylguanine-DNA Methyltransferase Expression during Ovarian Endometriosis

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O6-methylguanine-DNA methyltransferase (MGMT) expression varied in eutopic endometrium and ovarian endometriosis tissues, increasing in early endometriosis stages and in stromal cells with disease progression, potentially indicating DNA repair impairment.

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This comparative immunohistochemical study analyzed O6-methylguanine-DNA methyltransferase expression in eutopic endometrium and ovarian endometriosis tissues. Results indicated that while epithelial MGMT levels increased in early-stage endometriosis before declining in advanced stages, stromal cell parameters gradually rose alongside disease progression. The authors conclude that these alterations reflect impaired DNA repair mechanisms, which likely contribute to the development and advancement of the condition. This paper is centrally about endometriosis — specifically examining molecular markers in ovarian endometriosis lesions.

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Abstract

A comparative immunohistochemical study for the expression of O6-methylguanine-DNA methyltransferase (MGMT) was performed in tissues of the eutopic endometrium and ovarian endometriosis. The highest level of MGMT expression in eutopic endometrial tissue was observed in epitheliocyte nuclei during the proliferative phase. In regions of endometriosis the expression of MGMT in epitheliocyte nuclei was shown to increase during stages I and II, but decreased in stages III and IV. The progression of endometriosis was accompanied by a gradual increase of study parameters in the nuclei and cytoplasm of stromal cells. These changes reflect the impairment of DNA reparation, which probably serves as a stage in the development and progression of endometriosis.
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A comparative immunohistochemical study for the expression of O6-methylguanine-DNA methyltransferase (MGMT) was performed in tissues of the eutopic endometrium and ovarian endometriosis. The highest level of MGMT expression in eutopic endometrial tissue was observed in epitheliocyte nuclei during the proliferative phase. In regions of endometriosis the expression of MGMT in epitheliocyte nuclei was shown to increase during stages I and II, but decreased in stages III and IV. The progression of endometriosis was accompanied by a gradual increase of study parameters in the nuclei and cytoplasm of stromal cells. These changes reflect the impairment of DNA reparation, which probably serves as a stage in the development and progression of endometriosis. Similar content being viewed by others References Adamyan LV, Kulakov VI, Andreeva EN. Endometriosis. Guideline for Physicians. Moscow, 2006. Russian. Kogan YA, Askolskaya SI, Sagindykova RR, Fayzullina NM, Asaturova AV, Unanjan AL. Impaired expression of the proteins MGMT and ezrin in endometrial hyperplasia, endometrial intraepithelial neoplasia, and low-grade endometrioid adenocarcinoma in perimenopausal women. Akush. Gin. 2015(2):44-48. Russian. Shchegolev AI, Bykov AG, Tumanova UN, Pavlovich SV. Endometriosis and the development of tumors. Akush. Gin. 2016(11):49-56. Russian. Benagiano G, Brosens I. History of adenomyosis. Best Pract. Res. Clin. Obstet. Gynaecol. 2006;20(4):449-463. Brell M, Tortosa A, Verger E, Gil JM, Viñolas N, Villá S, Acebes JJ, Caral L, Pujol T, Ferrer I, Ribalta T, Graus F. Prognostic significance of O6-methylguanine-DNA methyltransferase determined by promoter hypermethylation and immunohistochemical expression in anaplastic gliomas. Clin. Cancer Res. 2005;11(14):5167-5174. De Vita VT, Hellman S, Rosenberg S. Cancer: Principles & Practice of Oncology. Philadelphia, 2005. P. 408-409. Giudice LC, Kao LC. Endometriosis. Lancet. 2004;364:1789-1799. Kuester D, El-Rifai W, Peng D, Ruemmele P, Kroeckel I, Peters B, Moskaluk CA, Stolte M, Mönkemüller K, Meyer F, Schulz HU, Hartmann A, Roessner A, Schneider-Stock R. Silencing of MGMT expression by promoter hypermethylation in the metaplasia-dysplasia-carcinoma sequence of Barrett’s esophagus. Cancer Lett. 2009;275(1):117-126. Lee KE. Immunohistochemical Assessment of O6-methylguanine-DNA methyltransferase (MGMT) and its relationship with p53 expression in endometrial cancers. J. Cancer Prev. 2013;18(4):351-354. Nakagawa T, Ido K, Sakuma T, Takeuchi H, Sato K, Kubota T. Prognostic significance of the immunohistochemical expression of O6-methylguanine-DNA methyltransferase, P-glycoprotein, and multidrug resistance protein-1 in glioblastomas. Neuropathology. 2008;29(4):379-388. Ouadid-Ahidouch H, Rodat-Despoix L, Matifat F, Morin G, Ahidouch A. DNA methylation of channel related genes in cancers. Biochim. Biophys. Acta. 2015;1848(10, Pt B):2621-2628. Preuss I, Haas S, Eichhorn U, Eberhagen I, Kaufmann M, Beck T, Eibl RH, Dall P, Bauknecht T, Hengstler J, Wittig BM, Dippold W, Kaina B. Activity of the DNA repair protein O6-methylguanine-DNA methyltransferase in human tumor and corresponding normal tissue. Cancer Detect. Prev. 1996;20(2):130-136. Rimel BJ, Huettner P, Powell MA, Mutch DG, Goodfellow PJ. Absence of MGMT promoter methylation in endometrial cancer. Gynecol. Oncol. 2009;112(1):224-228. Yachi K, Watanabe T, Ohta T, Fukushima T, Yoshino A, Ogino A, Katayama Y, Nagase H. Relevance of MSP assay for the detection of MGMT promoter hypermethylation in glioblastomas. Int. J. Oncol. 2008;33(3):469-475. Zhang L, Zeng J, Zeng Z, Wang F, Wang D, Chen C, Li C, An X, Xu R, Huang P, Ba Y, Li Y. MGMT in colorectal cancer: a promising component of personalized treatment. Tumour Biol. 2016;37(8):11 443-11 456. Author information Authors and Affiliations Corresponding author Additional information Translated from Byulleten’ Eksperimental’noi Biologii i Meditsiny, Vol. 164, No. 9, pp. 372-376, September, 2017 Rights and permissions About this article Cite this article Shchegolev, A.I., Bykov, A.G., Faizullina, N.M. et al. Immunohistochemical Features of O6-Methylguanine-DNA Methyltransferase Expression during Ovarian Endometriosis. Bull Exp Biol Med 164, 386–389 (2018). https://doi.org/10.1007/s10517-018-3995-z Received: Published: Version of record: Issue date: DOI: https://doi.org/10.1007/s10517-018-3995-z

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endometriosis

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DNA Modification Methylases DNA Repair DNA Repair Enzymes Endometriosis Ovary Stromal Cells Tumor Suppressor Proteins Adolescent Adult Disease Progression DNA DNA DNA DNA Modification Methylases DNA Modification Methylases DNA Repair Enzymes DNA Repair Enzymes Endometriosis Endometriosis Endometriosis

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