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Abstract Title:

Anti-estrogenic activities of indole-3-carbinol in cervical cells: implication for prevention of cervical cancer.

Abstract Source:

Anticancer Res. 1999 May-Jun;19(3A):1673-80. PMID: 10470100

Abstract Author(s):

F Yuan, D Z Chen, K Liu, D W Sepkovic, H L Bradlow, K Auborn

Abstract:

BACKGROUND: Cervical cancer constitutes the second most common cancer in women. Estrogen promotes development of cervical cancer in cells infected with high risk human papillomaviruses (HPVs). We asked whether the phytochemical indole-3-carbinol (I3C) has anti-estrogenic activities in cervical cells with the goal of preventing cancer in HPV infected cells. MATERIALS AND METHODS: Using the cervical cancer cell line CaSki, we evaluated expression of HPV and cytochrome p450 (CYP) enzymes by Northern, RNase protection or quantitative RT-PCR. I3C binding to estrogen receptor was measured by competition with estradiol. Estrogen metabolites were measured by gas chromarography-mass spectrometry (GC-MS). RESULTS: Estradiol increased expression of HPV oncogenes whereas I3C and the estrogen metabolite 2-hydroxyestrone (2-OHE) abrogated the estrogen-increased expression of HPV oncogenes. Both I3C and 2-OHE competed with estradiol for estrogen receptor binding. I3C enhanced gene expression of CYP enzymes responsible for 2-hydroxylation of estrogen, and induced the formation of 2-OHE. CONCLUSION: I3C has anti-estrogenic activities which should prevent cancer in cervical cells.

Study Type : In Vitro Study

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Sayer Ji
Founder of GreenMedInfo.com

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