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CLIN CANCER RES:MERTK抑制剂联合EGFR TKI治疗非小细胞肺癌

2018-12-23 MedSci MedSci原创

肺癌是癌症相关死亡的主要原因。非小细胞肺癌(NSCLC)占所有肺癌的85%,超过60%表达野生型EGFR(wtEGFR)。然而,EGFR酪氨酸激酶抑制剂(TKIs)在大多数wtEGFR肿瘤患者中作用有限。MERTK酪氨酸激是NSCLC的潜在治疗靶点,MRX-2843是一种新型MERTK选择性抑制剂,具有良好的临床转化性。CLIN CANCER RES近期发表了一篇文章,研究MERTK和EGFR抑制

肺癌是癌症相关死亡的主要原因。非小细胞肺癌NSCLC)占所有肺癌的85%,超过60%表达野生型EGFR(wtEGFR)。然而,EGFR酪氨酸激酶抑制剂(TKIs)在大多数wtEGFR肿瘤患者中作用有限。MERTK酪氨酸激是NSCLC的潜在治疗靶点,MRX-2843是一种新型MERTK选择性抑制剂,具有良好的临床转化性。CLIN CANCER RES近期发表了一篇文章,研究MERTK和EGFR抑制剂联合治疗wtEGFR NSCLC的抗肿瘤效果。

作者在体内和体外实验中研究378种酶抑制剂与MRX-2843的协同相互作用和治疗效果。研究结果表明,许多不可逆的EGFR TKI,包括CO-1686和osimertinib,与MRX-2843协同抑制wtEGFR NSCLC细胞增殖,且与驱动癌基因状态无关。CO-1686和MRX-2843联合治疗比单一药物治疗更能有效地抑制MERTK,wtEGFR和ERBB2 / ERBB3并降低下游PI3K-AKT,MAPK-ERK和AURORA激酶(AURK)信号传导。PI3K,AKT或AURK的抑制与CO-1686协同抑制肿瘤细胞扩增,而非MEK的抑制。用MRX-2843和CO-1686或osimertinib联合治疗可防止异种移植物生长,而单一药物的作用有限。即使在停止使用联合疗法治疗后,也可持久抑制肿瘤生长。

文章最后认为,MRX-2843可以与不可逆EGFR TKI联合应用治疗wtEGFR NSCLC 患者。

原始出处:

Dan Yan, Rebecca E. Parker, et al. MERTK Promotes Resistance to Irreversible EGFR Tyrosine Kinase Inhibitors in Non–small Cell Lung Cancers Expressing Wild-type EGFR Family Members. CLIN CANCER RES. December 2018 doi: 10.1158/1078-0432.CCR-18-0040

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    2019-11-30 jklm09
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    2018-12-25 lsj628
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    2018-12-25 liuyiping

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