Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
2008-6-30
pubmed:abstractText
Tenacissimoside A (1) and 11alpha-O-benzoyl-12beta- O-acetyltenacigenin B (2), two derivatives of tenacigenin B (3) from the plant Marsdenia tenacissima, reversed multidrug resistance in P-glycoprotein (Pgp)-overexpressing multidrug-resistant cancer cells. The sensitivity of HepG2/Dox cells to the antitumor drugs doxorubicin, vinblastine, puromycin, and paclitexel was increased by 18-, 10-, 11-, and 6-fold by 20 microg/mL (or 25 microM) of 1 and 16-, 53-, 16-, and 326-fold by 20 microg/mL (or 39 microM) of 2, respectively. A preliminary mechanistic study has suggested that 1 might modulate Pgp-mediated multidrug resistance through directly interacting with the Pgp substrate site.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
1520-6025
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
71
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1049-51
pubmed:meshHeading
pubmed:year
2008
pubmed:articleTitle
Tenacigenin B derivatives reverse P-glycoprotein-mediated multidrug resistance inHepG2/Dox cells.
pubmed:affiliation
Research Group of Pharmaceutical Sciences, Tropical Medicine Institute, Guangzhou University of Chinese Medicine, Guangzhou 510405, People's Republic of China. yingjiehu@163.net
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't