alexa Regulation of Expression of Secretory Leukocyte Protease Inhibitor by Progesterone in BeWo Choriocarcinoma Cells
ISSN: 2157-7536

Journal of Steroids & Hormonal Science
Open Access

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Research Article

Regulation of Expression of Secretory Leukocyte Protease Inhibitor by Progesterone in BeWo Choriocarcinoma Cells

Neelima P. Sidharthan and Addicam Jagannadha Rao*

Department of Biochemistry, Indian, Institute of Science, Bangalore, India

*Corresponding Author:
Dr. A. J Rao
Department of Biochemistry
Indian Institute of Science
Bangalore, India
Tel: 91-080-22932308, 23608660
Fax: 91-080-23608660
E-mail: [email protected]
[email protected]

Received date: May 12, 2011; Accepted date: July 25, 2011; Published date: July 29, 2011

Citation: Sidharthan NP, Rao AJ (2011) Regulation of Expression of Secretory Leukocyte Protease Inhibitor by Progesterone in BeWo Choriocarcinoma Cells. J Steroids Hormon Sci 2:106. doi: 10.4172/2157-7536.1000107

Copyright: © 2011 Sidharthan NP, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.



Secretory leukocyte protease inhibitor is a multifunctional protein with a variety of activities attributed to it. A significant increase in the expression of Secretory leukocyte protease inhibitor was noticed in syncytiotrophoblasts following differentiation of cytotrophoblasts in to syncytiotrophoblasts by addition of Forskolin. Using the BeWo cells which are derived from choriocarcinoma, the effect of addition of progesterone and estradiol on the expression of Secretory leukocyte protease inhibitor by Reverse Transcription Polymerase Chain Reaction was assessed. It was found that while addition of low concentration of progesterone resulted in a significant increase in expression of Secretory leukocyte protease inhibitor, addition of estradiol even at high concentration had no effect. The specificity of effect of progesterone was established by the observation that addition of Progesterone along with progesterone receptor antagonist (RU484) resulted in decrease in the level of expression of Secretory leukocyte protease inhibitor. These results suggest that Secretory protease leukocyte protease inhibitor is a progesterone regulated gene.


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