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Int. J. Mol. Sci. 2009, 10(7), 3255-3268; doi:10.3390/ijms10073255

Genistein Inhibition of Topoisomerase IIα Expression Participated by Sp1 and Sp3 in HeLa Cell

1
Cell Biology Division, Institute of Basic Medicine, Hebei Medical University, Shijiazhuang 050017, Hebei, China
2
Chang’an District Hospital, Shijiazhuang 050017, Hebei, China
*
Author to whom correspondence should be addressed.
Received: 5 June 2009 / Revised: 6 July 2009 / Accepted: 20 July 2009 / Published: 22 July 2009
(This article belongs to the Section Biochemistry, Molecular Biology and Biophysics)
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Abstract

Genistein (4′, 5, 7-trihydroxyisoflavone) is an isoflavone compound obtained from plants that has potential applications in cancer therapy. However, the molecular mechanism of the action of genistein on cancer cell apoptosis is not well known. In this study, we investigated the effect of genistein on topoisomerase II-α (Topo IIα), an important protein involved in the processes of DNA replication and cell proliferation. The results revealed that inhibition of Topo IIα expression through the regulation of Specificity protein 1 and Specificity protein 3 may be one of the reasons for genistein’s induction of HeLa cell apoptosis.
Keywords: genistein; topoisomerase II-α; specificity protein 1 (Sp1); specificity protein 3 (Sp3) genistein; topoisomerase II-α; specificity protein 1 (Sp1); specificity protein 3 (Sp3)
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Zhou, N.; Yan, Y.; Li, W.; Wang, Y.; Zheng, L.; Han, S.; Yan, Y.; Li, Y. Genistein Inhibition of Topoisomerase IIα Expression Participated by Sp1 and Sp3 in HeLa Cell. Int. J. Mol. Sci. 2009, 10, 3255-3268.

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