Document Detail


Isolation of Apoptosis-Inducing Stilbenoids from Four Members of the Orchidaceae Family.
MedLine Citation:
PMID:  22002852     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
High-throughput natural product research produced a suite of anticancer hits among several species of the Orchidaceae family ( ONCIDIUM MICROCHILUM, O. ISTHMI, and MYRMECOPHILA HUMBOLDTII). A commercial ONCIDIUM sp. was also examined as a convenient source of additional material. Isolation and structure elucidation led to the identification of fifteen stilbenoids including a new phenanthraquinone and two new dihydrostilbenes. NMR data for structure elucidation and dereplication were acquired utilizing a Bruker BioSpin TCI 1.7-mm MicroCryoProbe or a 5-µL CapNMR capillary microcoil. Several compounds inhibited proliferation of NCI-H460 and M14 cancer cell lines. All compounds were also examined for their ability to induce apoptosis. Apoptosis induction was determined by measuring caspase 3/7 activation and LDH release in a NCI-H460 cell line. Based on these results, a portion of the extract from a commercially available ONCIDIUM sp. was chemically modified in an attempt to obtain additional phenanthraquinones.
Authors:
Russell B Williams; Steven M Martin; Jin-Feng Hu; Eliane Garo; Stephanie M Rice; Vanessa L Norman; Julie A Lawrence; Grayson W Hough; Matt G Goering; Mark O'Neil-Johnson; Gary R Eldridge; Courtney M Starks
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-10-14
Journal Detail:
Title:  Planta medica     Volume:  -     ISSN:  1439-0221     ISO Abbreviation:  -     Publication Date:  2011 Oct 
Date Detail:
Created Date:  2011-10-17     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0066751     Medline TA:  Planta Med     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© Georg Thieme Verlag KG Stuttgart · New York.
Affiliation:
Lead Discovery and Rapid Structure Elucidation Group, Sequoia Sciences, Inc., St. Louis, Missouri, USA.
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