Increased expression of stathmin in eutopic endometrium of patients with endometriosis

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Author:
LI Chun-yan(Department of Obstetrics and Gynecology, Provincial Hospital Affiliated to Shandong University, Jinan, Shandong 250021, China)
LIU Hai-yuan(Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China)
LANG Jing-he(Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China)
WANG Hong-qing(Department of Obstetrics and Gynecology, Provincial Hospital Affiliated to Shandong University, Jinan, Shandong 250021, China)
FAN Xiu-ling(Department of Obstetrics and Gynecology, Provincial Hospital Affiliated to Shandong University, Jinan, Shandong 250021, China)
Journal Title:
CHINESE MEDICAL JOURNAL
Issue:
Volume 123, Issue 16, 2010
DOI:
10.3760/cma.j.issn.0366-6999.2010.16.006
Key Word:
stathmin;endometriosis;real-time PCR;eutopic endometrium

Abstract: Background Stathmin was identified as an endometriosis-related protein by comparative proteomics in our previous study.As a microtubule-destablizing factor, stathmin was shown to participate in the relay and integration of diverse intracellular signaling pathways involved in cell proliferation, differentiation, and many other cellular activities.To investigate whether stathmin is involved in the pathogenesis of endometriosis, we examined the expression of stathmin in eutopic endometrium of women with or without endometriosis.Methods Eutopic endometrium samples were collected from thirty-six patients who were diagnosed as endometriosis and the nineteen age-matched patients who were confirmed to be free of endometriosis surgically and histologically.The expression of stathmin mRNA was detected by real-time PCR, and its protein was detected by Western blotting and immunohistochemistry.Results Stathmin was overexpressed in eutopic endometrium of women with endometriosis detected by real-time PCR in mRNA levels and by Western blotting in protein levels, without significant difference between proliferative and 0secretory phase.Immunohistochemistry showed that stathmin protein was localized in both endometrial glandular and stromal cells throughout the menstrual cycle.Conclusions Stathmin is overexpressed in endometrium of patients with endometriosis and may play a role in the pathogenesis of endometriosis.

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