TGF-β receptor inhibitor LY2109761 enhances the radiosensitivity of gastric cancer by inactivating the TGF-β/SMAD4 signaling pathway
TGF-β receptor inhibitor LY2109761 enhances the radiosensitivity of gastric cancer by inactivating the TGF-β/SMAD4 signaling pathway
复制标题
TGF-β受体抑制剂LY2109761通过灭活TGF-β/SMAD4信号通路增强胃癌的放射敏感性
DOI:
10.18632/aging.102329
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发表时间:
2019-10
期刊:
影响因子:
5.2
通讯作者:
Yongchang Wei
中科院分区:
文献类型:
--
作者:
Tian Yang;Tianhe Huang;Dongdong Zhang;Miao Wang;Balu Wu;Yufeng Shang;Safat Sattar;Lu Ding;Yin Liu;Hongqiang Jiang;Yuxing Liang;Fuling Zhou;Yongchang Wei
Radiotherapy is used to treat gastric cancer (GC); however, radioresistance challenges the clinical outcomes of GC, and the mechanisms of radioresistance in GC remain poorly understood. Here, we report that the TGF-β receptor inhibitor, LY2109761 (LY), is a potential radiosensitizer both in vitro and in vivo. As per the Cancer Genome Atlas database, TGF-β overexpression issignificantly related to poor overallsurvival in GC patients. We demonstrated that the TGF β/SMAD4 signaling pathway was activated in both radioresistant GC cells and radioresistant GC patients. As a TGF-β receptor inhibitor, LY can enhance the activities of irradiation by inhibiting cell proliferation, decreasing clonogenicity and increasing apoptosis. Moreover, LY attenuated the radiation-induced migration and invasion, epithelial-mesenchymal transition (EMT), inflammatory factor activation, immunosuppression, and cancerstem cell characteristics of GC cells, thus leading to radiosensitization of the GC cells. We confirmed that LY reduced tumor growth, inhibited TGF-β/SMAD4 pathway activation and reversed irradiation-induced EMT in a tumor xenograft model. Our findings indicate that the novel TGF-β receptor inhibitor, LY, increases GC radiosensitivity by directly regulating the TGF-β/SMAD4 signaling pathway. These findings provide new insight for radiotherapy in GC patients.
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影响因子:
16.6
作者:
Avgustinova A;Iravani M;Robertson D;Fearns A;Gao Q;Klingbeil P;Hanby AM;Speirs V;Sahai E;Calvo F;Isacke CM
通讯作者:
Isacke CM
DOI:
--
发表时间:
2010
期刊:
--
影响因子:
--
作者:
Xue-Ping Feng;Hong Yi;Maoyu Li;Xin-Hui Li;B. Yi;Pengfei Zhang;Cui Li;Fang Peng;Can‐E. Tang-Can‐E.
通讯作者:
Xue-Ping Feng;Hong Yi;Maoyu Li;Xin-Hui Li;B. Yi;Pengfei Zhang;Cui Li;Fang Peng;Can‐E. Tang-Can‐E.
影响因子:
37.3
作者:
Zhang X;Shi H;Yuan X;Jiang P;Qian H;Xu W
通讯作者:
Xu W
影响因子:
--
作者:
Gu H;Huang T;Shen Y;Liu Y;Zhou F;Jin Y;Sattar H;Wei Y
通讯作者:
Wei Y
影响因子:
17.1
作者:
Nunez, Felipe J.;Mendez, Flor M.;Castro, Maria G.
通讯作者:
Castro, Maria G.