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Journal of Experimental Hematology ; (6): 809-811, 2005.
Artigo em Chinês | WPRIM | ID: wpr-343882

RESUMO

To study the effects of Qingdai compound on proliferation and apoptosis of K562 cells, as well as the expression of bcr/abl and JWA mRNA, K562 cells were treated in culture with different concentrations of Qingdai compound (2.5, 5, 7.5, 10 and 20 mg/ml) and harvested at 24 hours. Then morphological changes were observed by light microscopy (LM); expressions of bcr/abl and JWA were detected with semi-quantitative RT-PCR. The results showed that morphological changes were observed as the increment of the Qingdai compound concentration. Inhibition effects on proliferation and apoptosis in K562 cells were seen. A concentration-dependent decreases were found in bcr-abl and JWA mRNA expression of K562 cells. Qingdai compound partially inhibited proliferation and induced apoptosis of K562 cells. Expressions of both bcr/abl and JWA, which took part in cell proliferation and apoptosis, were down-regulated in a dose dependent manner. In conclusion, Qingdai compound can partially inhibit the expressions of bcr/abl and JWA genes in K562 cells, and the clinical effect of Qingdai compound on CML may be associated with apoptosis of leukemic cells.


Assuntos
Humanos , Antineoplásicos Fitogênicos , Farmacologia , Apoptose , Proliferação de Células , Relação Dose-Resposta a Droga , Medicamentos de Ervas Chinesas , Farmacologia , Proteínas de Fusão bcr-abl , Genética , Regulação Neoplásica da Expressão Gênica , Proteínas de Choque Térmico , Genética , Peptídeos e Proteínas de Sinalização Intracelular , Genética , Células K562 , RNA Mensageiro , Genética , Reação em Cadeia da Polimerase Via Transcriptase Reversa
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