Yang Xing,Zhang Fengshen,Sun Hai,Deng Xiaoming,Chen Yan.Effect of cholecystokinin on expression of MMPs and TIMPs in human cholangiocarcinoma QBC939 cells[J].J Amry Med Univ (J Third Mil Med Univ),2014,36(16):1684-1688.
Yang Xing,Zhang Fengshen,Sun Hai,Deng Xiaoming,Chen Yan.Effect of cholecystokinin on expression of MMPs and TIMPs in human cholangiocarcinoma QBC939 cells[J].J Amry Med Univ (J Third Mil Med Univ),2014,36(16):1684-1688.DOI:
Effect of cholecystokinin on expression of MMPs and TIMPs in human cholangiocarcinoma QBC939 cells
Objective To investigate the effect of cholecystokinin (CCK) on the expression of matrix metalloproteinases (MMPs) and tissue inhibitors of matrix metalloproteinases (TIMPs) in human cholangiocarcinoma QBC
939
cells. Methods Human cholangiocarcinoma QBC
939
cells were assigned into a control group and 8 experimental groups. The experimental groups (group 1 to group 8) were treated with 10
-13
10
-11
10
-9
10
-7
and 10
-7
mol/L L18 (a CCK-A receptor antagonist)
10
-7
mol/L L60 (a CCK-B receptor antagonist)
10
-7
mol/L CCK
8s
+ 10
-7
mol/L L18
and 10
-7
mol/L CCK
8s
+ 10
-7
mol/L L60
respectively
for 48 h. Transwell Matrigel invasion assay was used to study the impact on the invasion ability of QBC
939
cells. The mRNA and protein expression of MMP-2
MMP-9
TIMP-1 and TIMP-2 were detected by real-time PCR and Western blotting. All the data were analyzed using the analysis of variance and Spearman rank correlation. Results CCK
8s
could promote invasion ability of QBC
939
cells significantly. The mRNA and protein expression of MMP-2 and MMP-9 in experimental groups 1 to 4 were significantly higher than those of the control group (
P
0.01)
and the mRNA and protein expression of TIMP-1 and TIMP-2 were significantly lower (
P
0.01). The mRNA and protein expressions of MMP-2 and MMP-9 in experimental groups 5 and 6 were obviously lower than those of the con
trol group (
P
0.01)
and the expression of TIMP-1 and TIMP-2 were obviously higher (
P
0.01). There was no significant difference in the mRNA and protein expression of MMPs and TIMPs among experimental groups 7 and 8 and the control group. The mRNA and protein expression of MMP-2 in experimental groups 1 to 4 were positively correlated with the concentrations of CCK (
r
=0.972
0.963;
P
0.01)
while those of TIMP-2 were negatively correlated with the concentrations of CCK (
r
=-0.974
-0.952;
P
0.01). Conclusion CCK can significantly promote the invasion ability of QBC
939
cells and the expression of MMPs
but decrease the expression of TIMPs in QBC
939
cells. CCK may promote perineural invasion of cholangiocarcinoma mainly through impacting the balance between MMP-2 and TIMP-2.
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