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CIB2通过诱导ZEB1表达和上皮细胞-介质细胞过渡来调解获得的格菲替尼抗性

Feng-Mei Zhou¹, Kun-Kun Wang¹, Li-Hong Wang¹

¹Academy of Medical Science, Zhengzhou University, Zhengzhou 450000, China.

|September 12, 2024

概括

高CIB2表达驱动非小细胞肺癌 (NSCLC) 的gefitinib耐药性,通过通过ZEB1.1.促进EMT. 向CIB2可以克服对表皮生长因子受体氨酸激酶抑制剂 (EGFR-TKI) 的获得性耐药性.

科学领域:

在瘤学瘤学.
分子生物学分子生物学
癌症研究癌症研究

背景情况:

皮肤上生长因子受体氨酸激酶抑制剂 (EGFR-TKIs),如gefitinib,是EGFR突变的高级非小细胞肺癌 (NSCLC) 的第一线治疗方法.
获得的耐药性对gefitinib仍然是一个重大的临床挑战,需要新的治疗策略.

研究的目的:

调查CIB2在NSCLC中获得的格菲提尼布耐药性中的作用.
阐明CIB2介导的格菲提尼布耐药性的基础分子机制.

主要方法:

在耐基菲提尼布NSCLC细胞中分析CIB2表达.
在肺癌细胞系中进行CIB2淘汰和过度表达研究.
研究CIB2抑制对细胞亡和上皮细胞转化为介质细胞转化 (EMT) 的影响.
评估CIB2在gefitinib耐药性中的作用 *in vivo*.

主要成果:

在耐吉提尼布的NSCLC细胞中观察到高CIB2表达.
CIB2淘汰赛增加了对gefitinib的敏感性,而CIB2过度表达导致了耐药性.
抑制CIB2显著促进了耐药细胞中的亡.
上调的CIB2通过ZEB1促进了EMT,而FOSL1通过转录调节的CIB2.
在*in vivo*的瘤模型中,CIB2赋予了gefitinib耐药性.

结论:

上调的CIB2通过ZEB1促进EMT,有助于在NSCLC中获得gefitinib耐药性.
在NSCLC患者中,CIB2代表了克服EGFR-TKI获得性耐药性的潜在治疗标.

关键词:

在CIB2上,您可以使用CIB2.在EMT中,EMT是EMT.盖菲提尼布 (gefitinib) 是一种药物.非小细胞肺癌的肺癌.瘤的生长瘤的生长

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