Matrine suppresses the growth of human chronic myeloid leukemia K562 cells via inhibiting bcr-abl-mediated MEK-ERK pathway
10.3760/cma.j.issn.1006-9801.2015.07.001
- VernacularTitle:苦参碱通过bcr-abl介导的MEK-ERK通路抑制人慢性粒细胞白血病K562细胞增殖
- Author:
Liuyang HE
;
Haijun ZHOU
;
Xiao SUN
;
Zhichao ZHU
;
Yu BAI
;
Lijia JIANG
;
Xuzhang LU
;
Min ZHOU
;
Sixuan QIAN
;
Jianyong LI
;
Lingdi MA
- Publication Type:Journal Article
- Keywords:
Matrine;
Leukemia,myeloid,chronic;
MEK-ERK signaling pathway;
bcr-abl
- From:
Cancer Research and Clinic
2015;(7):433-437,444
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the mechanism of matrine in inhibition of proliferation the proliferation of human chronic myeloid leukemia (CML) K562 cells via MEK-ERK signaling pathway. Methods Western blot was used to detect the expression of MEK1, ERK1/2, Shc and SHP2 (the signal effect molecules of MEK-ERK pathway) in K562 cells. The transcription and translation of bcr-abl and target protein (bcl-xL, Cyclin D1, c-myc and p27) were detected by RT-PCR and Western blot. Results Matrine was able to significantly inhibit the phosphorylation of MEK1, ERK1/2, Shc and SHP2 in K562 cells and suppress the protein and mRNA expression of bcr-abl. Moreover, the expressions of bcl-xL, Cyclin D1 and c-myc were down-regulated significantly, while the expression level of p27 (a negative regulator of cell cycle progression) was increased markedly after matrine treatment. Conclusions Suppression of the growth of human CML K562 cells is related to the inhibition of bcr-abl-mediated MEK-ERK pathway activity. The down-regulation of phosphorylated proteins or protein kinases activity in signaling pathways might be an important molecular mechanism in control the activity of MEK-ERK pathway.
