The Sensitivity of Gene Mutant Related to Gastrointestinal Stromal Tumor to Gleevec / 中国肿瘤临床
Chinese Journal of Clinical Oncology
;
(24): 301-304, 2010.
Artigo
em Chinês
| WPRIM
| ID: wpr-402806
ABSTRACT
Objective:
To explore the sensitivity of Kit or PDGFRA mutants related to gastrointestinal stromal tumor (GIST) to Gleevec.Methods:
The recombinant plasmids of KIT Del559-560, KIT Ins IPYD579, PDGFRA D842V and PDG-FRA L839P gene mutants were transiently transformed into the CHO cells by liposome methods.Western blot was used to detect the expression of the related protein and their phosphorylated forms after the cells were incubated with Gleevec for 90 min.At 72 hours after incubation with Gleevec, MTT was used to detect cell proliferation.Results:
Western blot results showed that Gleevec at 0.1 μM can notably reduce phosphorylation of KIT Del559-560.Gleevec at 1μM completely blocked phosphorylation of KIT Ins IPYD579 and PDGFRA L839P, but did not affect PDGFRA D842V phosphorylation.MTT analy-sis indicated that growth of CHOPDGFRA L839P was inhibited by Gleevec at 1μM, however, CHOPDGFRA D842V was re-sistant to Gleevec at 5 μM.Conclusion:
Gleevec can decrease the expression of phosphorylated protein CHOPDGFRA L839P and CHOKIT Ins IPYD579, and can remarkably inhibit the proliferation of cells containing PDGFRA L839P mutant.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Tipo de estudo:
Estudo diagnóstico
Idioma:
Chinês
Revista:
Chinese Journal of Clinical Oncology
Ano de publicação:
2010
Tipo de documento:
Artigo
Similares
MEDLINE
...
LILACS
LIS