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NF-kB振荡谱对抗EGFR单克隆抗体的反应进行解码

Donatella Romaniello¹, Lorenzo Dall'Olio², Martina Mazzeschi³

¹Department of Medical and Surgical Sciences, University of Bologna, via Massarenti 9, 40138 Bologna, Italy.

SLAS discovery : advancing life sciences R & D

|February 1, 2025

概括

介素-1 (IL-1) 和 cetuximab (CTX) 一起激活结直肠癌细胞中的NF-kB信号传递. 这种相互作用,特别是在CTX耐药细胞中,可能会导致药物耐受性和耐药性.

科学领域:

在瘤学瘤学.
免疫学免疫学免疫学
分子生物学分子生物学

背景情况:

炎症与癌症的发展和进展有关.
介素-1 (IL-1) 的存在阻碍了对结直肠癌 (CRC) 中EGFR向单克隆抗体的反应.
NF-kB转录因子控制IL-1表达,并表现出振荡行为.

研究的目的:

在炎症环境中研究NF-kB对单克隆抗体的反应动态.
了解NF-kB振荡在对单克隆抗体的反应中的生物相关性.
探索IL-1和EGFR信号在NF-kB激活中的相互作用.

主要方法:

使用活细胞光酶试验,随着时间的推移监测NF-kB活性.
测量了NF-kB活性对单独使用塞图西马布 (CTX) 和与IL-1结合的反应.
对CTX响应性和CTX抗性结直肠癌细胞进行了实验.

主要成果:

塞图西马布 (CTX) 和IL-1在CTX响应细胞中对NF-kB激活产生添加作用.
耐CTX细胞在IL-1加CTX时,NF-kB资料没有显著变化.
在NF-kB激活中观察到IL-1和EGFR信号之间的直接交叉.

结论:

IL-1和EGFR信号之间的相互作用影响NF-kB的激活.
这种相互作用可能有助于药物耐受性持久细胞 (DTP) 的发展.
这些发现表明,结直肠癌中存在着 cetuximab 耐药性的机制.

关键词:

在CRC中,CRC就是CRC.在 NF-kB 信号传输中.对单克隆抗体的耐药性

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