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A natural compound, methyl angolensate, induces mitochondrial pathway of apoptosis in Daudi cells.
MedLine Citation:
PMID:  20169399     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Natural products discovered from medicinal plants have played an important role in the treatment of cancer. In an effort to identify novel small molecules which can affect the proliferation of lymphoma cells, we tested methyl angolensate (MA), a plant derived tetranortriterpenoid, purified from the crude extract of the root callus of Soymida febrifuga commonly known as Indian red wood tree. We have tested MA for its cytotoxic properties on Burkitt's lymphoma cell lines, using various cellular assays. We observed that MA induces cytotoxicity in Daudi cells in a dose-dependent manner using trypan blue, MTT and LDH assays. We find that the treatment with MA led to activation of DNA double-strand break repair proteins including KU70 and KU80, suggesting the activation of nonhomologous DNA end joining pathway in surviving cells. Further, we find that methyl angolensate could induce apoptosis by cell cycle analysis, annexin V-FITC staining, DNA fragmentation and PARP cleavage. Besides, MA treatment led to reactive oxygen species generation and loss of mitochondrial transmembrane potential. These results suggest the activation of mitochondrial pathway of apoptosis. Hence, we identify MA as a potential chemotherapeutic agent against Daudi cells.
Authors:
Kishore K Chiruvella; Sathees C Raghavan
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Publication Detail:
Type:  Journal Article     Date:  2010-02-20
Journal Detail:
Title:  Investigational new drugs     Volume:  29     ISSN:  1573-0646     ISO Abbreviation:  Invest New Drugs     Publication Date:  2011 Aug 
Date Detail:
Created Date:  2011-05-31     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8309330     Medline TA:  Invest New Drugs     Country:  United States    
Other Details:
Languages:  eng     Pagination:  583-92     Citation Subset:  IM    
Affiliation:
Department of Biochemistry, Indian Institute of Science, Bangalore, 560 012, India.
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