Abstract Title:

Betulinic acid-induced cytotoxicity in human breast tumor cell lines MCF-7 and T47D and its modification by tocopherol.

Abstract Source:

Cancer Invest. 2014 Oct ;32(8):402-8. Epub 2014 Jul 14. PMID: 25019212

Abstract Author(s):

Reeta Tiwari, Abhay Puthli, S Balakrishnan, B K Sapra, K P Mishra

Article Affiliation:

Reeta Tiwari


Betulinic acid (BA) has been shown to cause apoptosis in neuroblastoma and melanoma cell lines. We evaluated the cytotoxicity of BA in two breast cancer cell lines MCF-7 and T47D differing in their p53 status. Treatment with BA resulted in a dose dependent inhibition of cell proliferation and induction of apoptosis. This indicates p53-independent apoptotic pathway, because response of both p53 mutant and wild type cell line were found unaffected after treatment with pifithrin-α, an inhibitor of p53. Cells were significantly protected when treated by tocopherol suggesting involvement of membrane centered lipid peroxidation-mediated mechanism in BA-induced apoptosis.

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