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2015 ; 8
(10
): 12075-83
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Tubeimoside-1 (TBMS1) inhibits lung cancer cell growth and induces cells
apoptosis through activation of MAPK-JNK pathway
#MMPMID26722392
Hao W
; Wang S
; Zhou Z
Int J Clin Exp Pathol
2015[]; 8
(10
): 12075-83
PMID26722392
show ga
Tubeimoside-1 (TBMS1) is a natural compound isolated from tubeimoside, which has
anti-tumor properties in some cancer cells, but its mechanisms are unclear. In
the present study, we determined if TBMS1 would inhibit cell growth of human lung
cancer cell lines. We found that TBMS1 inhibited growth in A549 and PC9 human
lung cancer cell. Flow cytometry revealed TBMS1 arrested the cells in the G2/M
phase and induced cell apoptosis. Furthermore, results from Western blotting and
real-time PCR indicated that decreased the cell proliferation and cell
growth-associated protein levels, such as p21, p15 and cyclin B1, TBMS1
up-regulated proapoptotic bax and cleavage of procaspase-3, down-regulated
antiapoptotic Mcl-1 and cIAP-1, but did not change expression of PARP and
procaspase-8. And TBMS1 also found to increase the phosphorylation, of JNK and
p38, suggesting TBMS1 could activate the MAPK-JNK signaling pathway. Luciferase
reporter assay revealed that TBMS1 reduced the promoter activity of AP-1, NF-?B
and TNF?. In addition, TBMS1 caused the production of reactive oxygen species
(ROS). These results provide evidence that TBMS1 may have potential as a novel
anti-cancer agent for the treatment of lung cancer. TBMS1 inhibited cell
proliferation may through MAPK-JNK signaling pathway.