Investigation of Tenascin Expression in Endometriosis

Zehra Sema Özkan, Hasan Çılgın, Remzi Atılgan, Mehmet Şimşek, Bengu Cobanoglu, Atilla İlhan, Ekrem Sapmaz
In: ISRN Pathology · 2012 · vol. 2012 , pp. 1–5 · doi:10.5402/2012/873759 · W2022451509
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⚙ AI-generated summary by claude@2026-06, 2026-06-08 ⓘ

This study evaluated tenascin expression in serum and endometrial tissue from women with and without endometriosis, finding intense tenascin staining in glandular cells during the secretory phase and higher tissue than serum levels in that phase.

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Abstract

Objective . To evaluate the serum and tissue levels and local expression pattern of tenascin, a high molecular weight extracellular matrix protein, in eutopic and ectopic endometrium from patients with and without endometriosis and to compare the proliferative and secretory phase differences. Materials and Methods . Thirty women with endometriosis and fifteen women without endometriosis undergoing surgery for benign indications were included in the study. Serum and tissue levels and proliferative and secretory phase expression patterns of tenascin in the ectopic and eutopic endometrium were analyzed with immunohistochemistry and immunoassays. The results were compared with Mann-Whitney U test. P values <0.05 were considered as statistically significant. Results . Tenascin expression was detected in both of eutopic and ectopic endometrium of women with and without endometriosis. In immunohistochemical staining, intense staining of tenascin was observed in glandular cells of eutopic and ectopic endometrial tissue samples of both groups during secretory phase (P<0.01). Eutopic and ectopic tissue levels of tenascin were higher than serum tenascin levels only secretory phase (P=0.02). There was no significant difference between groups for tissue and serum levels of tenascin during cycle phases. Conclusion . Tenascin expression showed cyclic change on eutopic and ectopic endometrium.

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endometriosis

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