Author(s): RA Hajare, KS Parwani, SA Bajad, NA. Chandekar, AVChandewar

Email(s): rahulhajare@rediffmail.com

DOI: Not Available

Address: RA Hajare, KS Parwani, SA Bajad, NA. Chandekar and AVChandewar
P.W.C. of Pharmacy. Girija Nagar Dhamangaon Road Yavatmal- 445001 (M.S.)
*Corresponding Author

Published In:   Volume - 2,      Issue - 3,     Year - 2009


ABSTRACT:
Estrogen-responsive breast cancer cells, such as MCF7 and T47D cells, express both estrogen receptor ER and ERß. Indole-3-carbinol (I3C) strongly down-regulated ER protein and transcript levels, without altering the level of ERß protein, in both cell lines. In cells transfected with the ER promoter linked to a luciferase gene reporter, I3C ablated ER promoter activity1-5. Dietary indole-3-carbinol prevents the development of estrogen-enhanced cancers including breast. Whereas estrogen increases the growth and survival of tumors, indole-3-carbinol causes growth arrest and increased apoptosis and ameliorates the effects of estrogen. Our goal is to best use indole-3-carbinol together with other nutrients (genistein) to achieve maximum benefits for cancer prevention. We evaluated whether genistein, which is the major isoflavonoid in soy, would alter the ability of indole-3-carbinol/DIM to cause apoptosis and decrease expression driven by the estrogen receptor (ER)-alpha. Synergistic effect of indole-3-carbinol and genistein for induction of GADD expression, thus increasing apoptosis, and for decrease of expression driven by ER-alpha. Because of the synergistic effect of indole-3-carbinol and genistein, the potential exists for prophylactic or therapeutic efficacy of lower concentrations of each phytochemical when used in combination.11 I3C inhibits the enzyme elastase. High levels of elastase in breast cancer cells are suggestive of a poor prognosis because elastase shortens cyclin E, a cellular chemical involved in controlling the cell cycle, and the shortened version of cyclin E speeds up the cell cycle, therefore making cancer cells proliferate faster.I3C prevents the elastase shortening of cyclin E, thus halting the growth of breast cancer cells.


Cite this article:
RA Hajare, KS Parwani, SA Bajad, NA. Chandekar, AVChandewar. Breast Cancer and Indole -3-Carbinol: Controversy of Estrogen Level and Enzyme Elastase. Research J. Pharm. and Tech.2 (3): July-Sept. 2009,;Page 439-440.


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RNI: CHHENG00387/33/1/2008-TC                     
DOI: 10.5958/0974-360X 

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