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Journal of Environmental Pathology, Toxicology and Oncology
Facteur d'impact: 1.625 Facteur d'impact sur 5 ans: 1.63 SJR: 0.402 SNIP: 0.613 CiteScore™: 2.3

ISSN Imprimer: 0731-8898
ISSN En ligne: 2162-6537

Journal of Environmental Pathology, Toxicology and Oncology

DOI: 10.1615/JEnvironPatholToxicolOncol.2015013806
pages 299-308

Baicalein Inhibits MCF-7 Cell Proliferation In Vitro, Induces Radiosensitivity, and Inhibits Hypoxia Inducible Factor

Shruti Gade
Radiation Biology & Health Sciences Division, Bhabha Atomic Research Centre, Trombay, Mumbai, India
Nitin Motilal Gandhi
Radiation Biology & Health Sciences Division, Bhabha Atomic Research Centre, Trombay, Mumbai, India

RÉSUMÉ

Hypoxia inducible factor (HIF) is a key transcription factor responsible for imparting adaptability to the cancer cells growing in tumors. HIF induces the modulation of glucose metabolism, angiogenesis, and prosurvival signaling. Therefore, HIF is one of the attractive targets to treat solid tumors. Results presented in this study indicate that Baicalein (BA) inhibits HIF stabilization and also reduces its transcription activity in MCF-7 cells in vitro. Furthermore, BA was found to have antiproliferative ability as determined by the MTT assay and clonogenic survival. BA also induces apoptosis in MCF-7 cells at the concentration of 50 µM. We also report the radiosensitization of MCF-7 cells when they are treated with BA, resulting in higher γ-radiation−induced DNA damage. BA is extensively used in Chinese medicine and is known to be nontoxic at pharmacological doses. Our studies indicate that BA is one of the attractive natural compounds suitable for further evaluation as an adjuvant therapy.


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