Inhibition of non-small cell lung cancer (NSCLC) growth by a novel small molecular inhibitor of EGFR.

Inhibition of non-small cell lung cancer (NSCLC) growth by a novel small molecular inhibitor of EGFR.
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DOI:
10.18632/oncotarget.3155
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发表时间:
2015-03-30
期刊:
影响因子:
--
通讯作者:
Xiao J
Xiao J
中科院分区:
其他
文献类型:
--
作者:
Li J;Deng H;Hu M;Fang Y;Vaughn A;Cai X;Xu L;Wan W;Li Z;Chen S;Yang X;Wu S;Xiao J

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表皮生长因子受体(EGFR)是NSCLC的治疗靶点(肿瘤靶点)。利用体外EGFR激酶活性系统,我们鉴定了一种新的EGFR抑制剂小分子WB-308。WB-308通过引起G2/M期阻滞和凋亡抑制NSCLC细胞增殖和集落形成。此外,WB-308在体内抑制两种动物模型(肺原位移植模型和患者来源的移植物小鼠模型)中的移植物肿瘤生长。WB-308可抑制EGFR、AKT和ERK 1/2蛋白的磷酸化。WB-308的细胞毒性低于吉非替尼。我们的研究表明WB-308是一种新的EGFR TKI,可以考虑替代吉非替尼用于NSCLC的临床治疗。
The epidermal growth factor receptor (EGFR) is a therapeutic target (oncotarget) in NSCLC. Using in vitro EGFR kinase activity system, we identified a novel small molecule, WB-308, as an inhibitor of EGFR. WB-308 decreased NSCLC cell proliferation and colony formation, by causing G2/M arrest and apoptosis. Furthermore, WB-308 inhibited the engraft tumor growths in two animal models in vivo (lung orthotopic transplantation model and patient-derived engraft mouse model). WB-308 impaired the phosphorylation of EGFR, AKT, and ERK1/2 protein. WB-308 was less cytotoxic than Gefitinib. Our study suggests that WB-308 is a novel EGFR-TKI and may be considered to substitute for Gefitinib in clinical therapy for NSCLC.
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