Experimental study on the pancreatic cancer G1/S phase arrest byβ2-adrenergic antagonist

VernacularTitle:β2受体阻滞剂诱导胰腺癌细胞G1/S期阻滞的实验研究
Author: Dong ZHANG ¹ ; chen Huan SHA ; jun Jian LEI ; Zheng WANG ; yong Qing MA
Author Information

1. 西安交通大学第一附属医院肝胆外科
Keywords: ICI118; 551; G1/S phase arrest; Cyclin D1; Cyclin E
From: Journal of Xi'an Jiaotong University(Medical Sciences) 2018;39(1):36-40
CountryChina
Language:Chinese
Abstract: Objective To investigate the effects of β2-adrenergic antagonist ICI118 ,551 on pancreatic cancer cell G1/S phase arrest and its action mechanism .Methods The cell cycle indexes were determined by the flow cytometry assay ;the expressions of Cyclin D1 and Cyclin E were analyzed by Western blot ;the activation of NF-κB was measured by electrophoretic mobility shift assay ;the proliferation of PanCa cells was determined by BALB/c athymic nude mice subrenal capsular assay .Results β2-adrenergic antagonist ICI118 ,551 significantly induced G1/S phase arrest compared with β1-adrenergic antagonist metoprolol in MIA PaCa-2 and BxPC-3 cell lines .ICI118 ,551 inhibited the expressions of Cyclin D1 and Cyclin E and reduced the activation of NF-κB .The proliferation of PanCa cells was strongly suppressed in the renal capsule xenografts in mice after ICI 118 ,551 treatment .Conclusion The blockage ofβ2-adrenoceptor markedly induces PanCa cells to arrest at G1/S phase and inhibits the proliferation of pancreatic cancer cells .