Source:http://linkedlifedata.com/resource/pubmed/id/11976832
Switch to
Predicate | Object |
---|---|
rdf:type | |
lifeskim:mentions | |
pubmed:issue |
5
|
pubmed:dateCreated |
2002-4-26
|
pubmed:abstractText |
Vinorelbine (Navelbine, KW-2307), a semisynthetic vinca alkaloid, is a potent inhibitor of mitotic microtubule polymerization. The aims of this study were to demonstrate vinorelbine-induced radiosensitization of human small cell lung cancer (SCLC) SBC-3 cells and to elucidate the mechanisms of radiosensitization. A clonogenic assay demonstrated that SBC-3 cells were sensitized to radiation by vinorelbine using different schedules combining exposure to both. The sensitizer enhancement ratios (SERs) at a cell survival level of 10% were 1.42+/-0.21 to 1.33+/-0.06, and 1.22+/-0.07 depending on schedule. Vinorelbine-induced radiosensitization did not depend on the schedule of the combined exposure. Flow cytometric analyses showed that the cells did not accumulate in the radiosensitive G(2)/M phase of the cell cycle after concurrent treatment with vinorelbine and radiation. The results of an alkaline filter elution assay demonstrated that in the presence of vinorelbine at 1 n M radiation-induced DNA strand breaks were not completely repaired at 24 h postradiation. We conclude that human SCLC SBC-3 cells are sensitized to radiation by vinorelbine and that a possible mechanisms of vinorelbine-induced radiosensitization may at least in part be associated with impairment of DNA repair following radiation-induced DNA damage.
|
pubmed:language |
eng
|
pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:chemical | |
pubmed:status |
MEDLINE
|
pubmed:month |
May
|
pubmed:issn |
0344-5704
|
pubmed:author |
pubmed-author:AriokaHitoshiH,
pubmed-author:FukumotoHisaoH,
pubmed-author:FukuokaKazuyaK,
pubmed-author:IshidaTomoyukiT,
pubmed-author:IwamotoYasuoY,
pubmed-author:KanzawaFumihikoF,
pubmed-author:KimuraHiroshiH,
pubmed-author:KurokawaHirokazuH,
pubmed-author:NishioKazutoK,
pubmed-author:SaijoNagahiroN,
pubmed-author:SuzukiToshihiroT,
pubmed-author:TomonariAkiraA,
pubmed-author:UsudaJitsuoJ
|
pubmed:issnType |
Print
|
pubmed:volume |
49
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
385-90
|
pubmed:dateRevised |
2006-11-15
|
pubmed:meshHeading |
pubmed-meshheading:11976832-Carcinoma, Small Cell,
pubmed-meshheading:11976832-Cell Cycle,
pubmed-meshheading:11976832-DNA, Neoplasm,
pubmed-meshheading:11976832-DNA Damage,
pubmed-meshheading:11976832-Flow Cytometry,
pubmed-meshheading:11976832-Humans,
pubmed-meshheading:11976832-Lung Neoplasms,
pubmed-meshheading:11976832-Radiation-Sensitizing Agents,
pubmed-meshheading:11976832-Tumor Cells, Cultured,
pubmed-meshheading:11976832-Tumor Stem Cell Assay,
pubmed-meshheading:11976832-Vinblastine
|
pubmed:year |
2002
|
pubmed:articleTitle |
Mechanism of vinorelbine-induced radiosensitization of human small cell lung cancer cells.
|
pubmed:affiliation |
Pharmacology Division, National Cancer Center Research Institute, Tokyo, Japan.
|
pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
|