Mol. Hum. Reprod. Advance Access originally published online on January 18, 2006
Molecular Human Reproduction 2006 12(1):7-10; doi:10.1093/molehr/gah254
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Oct-4 expression in human endometrium
1Department of Gynecological Endocrinology and Reproductive Medicine, 2Department of Clinical Pathology and 3Department of Gynecology and Obstetrics, Medical University of Vienna, Waehringer Guertel, Vienna, Austria
4 To whom correspondence should be addressed at: Department of Gynecological Endocrinology and Reproductive Medicine, Medical University of Vienna, Waehringer Guertel 18-20, 5Q, Vienna A-1090, Austria. E-mail: andrea.kolbus{at}meduniwien.ac.at
The transcription factor Oct-4 is crucial for the maintenance of cell pluripotency and is known to be expressed in embryonic stem cells, germ cells and whole embryos at various stages of development. Oct-4 regulates cell fate in a dose-dependent manner and plays a key role in germ-cell tumours. In the past, several stem-cell markers have been detected, and their role in the pathogenesis of diseases has been discussed frequently. Thus, we investigated the expression of Oct-4 comparing its occurrence in endometrium of healthy and diseased women using immunohistochemistry (IHC) and RTPCR. IHC demonstrated Oct-4 expression in 25 of 60 sections (42%), respectively in 11 out of 25 patients (44%). Oct-4 mRNA was detected by RTPCR in all tested samples (9 of 9) of endometrium, although the levels of expression varied. To our knowledge, this is the first study demonstrating Oct-4 expression in human endometrium.
Key words: endometrium/Oct-4/stem cells/transcription factor
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