Linked Life Data

17692435

Source:http://linkedlifedata.com/resource/pubmed/id/17692435

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2008-5-9
pubmed:abstractText
The pharmacomodulation of the N atom of alpha,beta-acetylenic aminothiolesters or the replacement of the thiolester moiety by more electrophilic groups did not permit any clear rationale to be established for improving the selective growth-inhibitory activity of this family of compounds over that of the previously synthesized alpha,beta-acetylenic aminothiolesters DIMATE and MATE [G. Quash, G. Fournet, J. Chantepie, J. Goré, C. Ardiet, D. Ardail, Y. Michal, U. Reichert, Biochem Pharmacol 64 (2002) 1279-92]. Hence DIMATE and MATE were investigated more thoroughly for selectivity and growth-inhibitory activity using human prostate epithelial normal cells (HPENC) on the one hand and human prostate epithelial cancer cells (DU145) on the other. Unequivocal evidence was obtained showing that both compounds were reversible growth inhibitors of HPENC but irreversible growth inhibitors of DU145. Growth-inhibition of DU145 was due to the induction of early apoptosis as revealed by the flow cytometric analytical profile of inhibitor-treated cells, of the decrease in the redox potential and increase in superoxide anion content of their mitochondria. Of the two intracellular enzymes: aldehyde dehydrogenases 1 and 3 (ALDH1 and ALDH3) targeted by DIMATE and MATE, ALDH3 was inhibited to the same extent by both compounds whereas ALDH1 was less susceptible to inhibition by MATE. As the induction of ALDH3 by xenobiotics is hormone-dependent, MATE, the more selective of the two inhibitors, is a useful tool not only for examining the role of the ALDH3 isoform in hormone-sensitive and resistant prostate cancer cells in culture but also for investigating if it can inhibit the growth of xenografts of prostate cancer in immunodeficient mice.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0223-5234
pubmed:author
pubmed:issnType
Print
pubmed:volume
43
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
906-16
pubmed:meshHeading
pubmed-meshheading:17692435-Aldehyde Dehydrogenase, pubmed-meshheading:17692435-Animals, pubmed-meshheading:17692435-Antineoplastic Agents, pubmed-meshheading:17692435-Apoptosis, pubmed-meshheading:17692435-Cell Line, Tumor, pubmed-meshheading:17692435-Cell Proliferation, pubmed-meshheading:17692435-Drug Screening Assays, Antitumor, pubmed-meshheading:17692435-Epithelial Cells, pubmed-meshheading:17692435-Esters, pubmed-meshheading:17692435-Humans, pubmed-meshheading:17692435-Isoenzymes, pubmed-meshheading:17692435-Male, pubmed-meshheading:17692435-Mice, pubmed-meshheading:17692435-Mitochondria, pubmed-meshheading:17692435-Oxidation-Reduction, pubmed-meshheading:17692435-Prostatic Neoplasms, pubmed-meshheading:17692435-Structure-Activity Relationship, pubmed-meshheading:17692435-Sulfhydryl Compounds, pubmed-meshheading:17692435-Superoxides, pubmed-meshheading:17692435-Transplantation, Heterologous
pubmed:year
2008
pubmed:articleTitle
Aldehyde dehydrogenase inhibitors: alpha,beta-acetylenic N-substituted aminothiolesters are reversible growth inhibitors of normal epithelial but irreversible apoptogens for cancer epithelial cells from human prostate in culture.
pubmed:affiliation
Laboratoire d'Immunochimie, Faculté de médecine Lyon Sud, INSERM U-329, Oullins, F-69621, France.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't