Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
20
pubmed:dateCreated
2009-10-15
pubmed:abstractText
Twenty-two lycorine-related compounds were investigated for in vitro antitumor activity using four cancer cell lines displaying different levels of resistance to proapoptotic stimuli and two cancer cell lines sensitive to proapoptotic stimuli. Lycorine and six of its congeners exhibited potency in the single-digit micromolar range, while no compound appeared more active than lycorine. Lycorine also displayed the highest potential (in vitro) therapeutic ratio, being at least 15 times more active against cancer than normal cells. Our studies also showed that lycorine exerts its in vitro antitumor activity through cytostatic rather than cytotoxic effects. Furthermore, lycorine provided significant therapeutic benefit in mice bearing brain grafts of the B16F10 melanoma model at nontoxic doses. Thus, the results of the current study make lycorine an excellent lead for the generation of compounds able to combat cancers, which are naturally resistant to proapoptotic stimuli, such as glioblastoma, melanoma, non-small-cell-lung cancers, and metastatic cancers, among others.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
1520-4804
pubmed:author
pubmed:issnType
Electronic
pubmed:day
22
pubmed:volume
52
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
6244-56
pubmed:dateRevised
2011-11-1
pubmed:meshHeading
pubmed-meshheading:19788245-Actins, pubmed-meshheading:19788245-Amaryllidaceae Alkaloids, pubmed-meshheading:19788245-Animals, pubmed-meshheading:19788245-Antineoplastic Agents, pubmed-meshheading:19788245-Apoptosis, pubmed-meshheading:19788245-Cell Movement, pubmed-meshheading:19788245-Cell Proliferation, pubmed-meshheading:19788245-Cytoskeleton, pubmed-meshheading:19788245-Drug Resistance, Neoplasm, pubmed-meshheading:19788245-Female, pubmed-meshheading:19788245-Humans, pubmed-meshheading:19788245-Inhibitory Concentration 50, pubmed-meshheading:19788245-Maximum Tolerated Dose, pubmed-meshheading:19788245-Melanoma, pubmed-meshheading:19788245-Mice, pubmed-meshheading:19788245-Phenanthridines, pubmed-meshheading:19788245-Structure-Activity Relationship, pubmed-meshheading:19788245-Xenograft Model Antitumor Assays
pubmed:year
2009
pubmed:articleTitle
Lycorine, the main phenanthridine Amaryllidaceae alkaloid, exhibits significant antitumor activity in cancer cells that display resistance to proapoptotic stimuli: an investigation of structure-activity relationship and mechanistic insight.
pubmed:affiliation
Laboratoire de Chimie Analytique, Toxicologie et Chimie Physique Appliqueé, Institut de Pharmacie, Université Libre de Bruxelles, Brussels, Belgium.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't, Research Support, N.I.H., Extramural