The BH3-mimetic GX15-070 induces autophagy, potentiates the cytotoxicity of carboplatin and 5-fluorouracil in esophageal carcinoma cells.
Despite improvements in both surgical techniques and radio- and chemo-therapy regimens, the prognosis of esophageal cancer is poor. In pursuit of novel effective strategy, this study examined the effect of the BH3-mimetic GX15-070 on esophageal carcinoma cells. We discovered that GX15-070 inhibited the growth of esophageal cancer cells. There was synergism between GX15-070 and carboplatin or 5-fluorouracil. GX15-070 induced autophagy in esophagus cancer cell line EC9706 and osteosarcoma cancer cell line U2OS. 3-methyladenine and chloroquine, inhibitors of autophagy with distinct mechanisms, potentiated the cytotoxicity of GX15-070. In conclusion, GX15-070 inhibits growth of esophageal cancer cells.
Department of Pathophysiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, People's Republic of China. panjx2@mail.sysu.edu.cn
Jingxuan
J
Pan
Chao
C
Cheng
Srdan
S
Verstovsek
Qi
Q
Chen
Yanli
Y
Jin
Qi
Q
Cao
D001343:Autophagy / Q000187:drug effects*; D016190:Carboplatin / Q000494:pharmacology*; D045744:Cell Line, Tumor; D049109:Cell Proliferation / Q000187:drug effects; D004357:Drug Synergism; D004359:Drug Therapy, Combination; D004938:Esophageal Neoplasms / Q000188:drug therapy; D005472:Fluorouracil / Q000494:pharmacology*; D006801:Humans; D007211:Indoles; D012516:Osteosarcoma / Q000188:drug therapy; D011758:Pyrroles / Q000494:pharmacology*; D015398:Signal Transduction / Q000187:drug effects
D007211:Indoles; D011758:Pyrroles; D016190:Carboplatin; C520962:obatoclax; D005472:Fluorouracil