| Literature DB >> 19713035 |
John A Cook1, Rajani Choudhuri, William Degraff, Janet Gamson, James B Mitchell.
Abstract
Transforming growth factor beta (TGF-beta) is implicated in radiation-induced fibrosis of normal tissues in patients receiving radiotherapy. Inhibiting the TGF-beta signaling pathway by various means has been shown to reduce radiation-induced fibrosis in pre-clinical studies. The present study evaluated the effects of interfering with the TGF-beta signaling pathway on the radiosensitivity of selected human tumor cell lines using the plant-derived alkaloid, halofuginone. Halofuginone treatment inhibited cell growth, halted cell cycle progression, decreased radiation-induced DNA damage repair, and decreased TGF-beta receptor II protein levels, leading to increased cellular radiosensitization. These data further support the goal of manipulating the TGF-beta pathway to achieve a positive increase in the therapeutic gain in clinical radiotherapy. Published by Elsevier Ireland Ltd.Entities:
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Year: 2009 PMID: 19713035 PMCID: PMC2835928 DOI: 10.1016/j.canlet.2009.08.009
Source DB: PubMed Journal: Cancer Lett ISSN: 0304-3835 Impact factor: 8.679