Linked Life Data

18824363

Source:http://linkedlifedata.com/resource/pubmed/id/18824363

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
20
pubmed:dateCreated
2008-10-20
pubmed:abstractText
The macrocyclic lathyrane diterpene latilagascene B, previously isolated from Euphorbia lagascae, was acylated to afford three new diterpene esters, latilagascenes G (1), H (2), and I (3), whose structures were assigned by spectroscopic methods. These acyl derivatives, and the macrocyclic diterpenes of the jatrophane-type, tuckeyanols A (4) and B (5), and euphotuckeyanol (6), isolated from Euphorbia tuckeyana, were tested for P-gp modulating properties on human MDR1 gene-transfected and parental L5178 mouse lymphoma cell lines. All the compounds displayed very strong activity. The molecular orbital energies (HOMO and LUMO) of diterpenes 1-6 and 7-13, previously isolated, have also been calculated in order to estimate their probable charge transfer interactions with P-gp. Structure-activity relationships (SAR) are discussed. Furthermore, compounds (1-6) were assayed, in vitro, for their antiproliferative effects in combination with epirubicine and all of them synergistically enhance the effect of the antitumor drug.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
1464-3391
pubmed:author
pubmed:issnType
Electronic
pubmed:day
15
pubmed:volume
16
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
9323-30
pubmed:meshHeading
pubmed:year
2008
pubmed:articleTitle
Synergistic interaction between p-glycoprotein modulators and epirubicine on resistant cancer cells.
pubmed:affiliation
iMed.UL, Faculty of Pharmacy, University of Lisbon, Av. das Forças Armadas, 1600-083 Lisbon, Portugal.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't