胎MCB1是HCC个性化治疗的功能生物标志物
Daimin Xiang1,2,3, Junyu Liu1, Yichuan Wang1
1Clinical Cancer Institute, Center for Translational Medicine, Naval Military Medical University, Shanghai, 200433, China.
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
|October 15, 2024
概括
MCB1是一种新的胎儿内蛋白质,通过调节p53.3,驱动肝细胞癌 (HCC) 发病和耐药性. MCB1水平可以预测治疗反应,并指导个性化HCC治疗策略.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 生物化学 生物化学
背景情况:
- 肝细胞癌 (HCC) 是一个重大的全球健康挑战,个人化治疗的生物标志物有限.
- 现有的HCC疗法经常面临由于耐药性和缺乏预测标记物的限制.
研究的目的:
- 调查MCB1作为一种新型胎内蛋白在HCC发育和进展中的作用.
- 探索MCB1/p53轴在HCC启动及其对治疗反应的影响.
- 评估MCB1作为个性化HCC治疗和耐药性的潜在生物标志物.
主要方法:
- 分析MCB1表达在前新生病变和早期HCK患者的血清中的表达.
- 功能性研究阐明了MCB1对p53蛋白降解的调节及其在HCC启动中的作用.
- 评估MCB1/p53轴在确定对常规化疗药物和透导管动脉化学栓塞 (TACE) 的反应.
- 通过降低FGFR1和VEGFR3.3的调节,调查MCB1在调节针对性疗法 (索拉费尼布/伦瓦提尼布) 耐药性的作用.
- 使用患者衍生瘤器官 (PDO),患者衍生异种移植 (PDX) 和患者队列分析进行验证.
- 在耐药HCC模型中探索涉及基相关病毒 (AAV) 向MCB1和蛋白酶体抑制剂的治疗策略.
主要成果:
- 在早期的HCC病变和血清中,MCB1被上调,作为一个胎内蛋白质.
- MCB1通过调节p53降解和产生瘤启动细胞 (T-ICs) 来促进HCC启动.
- MCB1/p53轴影响对常规化疗和TACE的反应.
- MCB1通过降低FGFR1和VEGFR3表达以蛋白质组依赖的方式对索拉芬尼和伦瓦替尼产生抗性.
- 在HCC患者中,MCB1水平与对常规和向疗法的明显反应相关.
- 向MCB1或蛋白酶活性可以恢复耐药HCC模型中对向药物的敏感性.
结论:
- MCB1的功能是HCC启动和进展的驱动因素.
- 在HCC中,MCB1对治疗药物耐药性有显著的贡献.
- MCB1作为个性化HCC治疗和组合治疗的潜在预测生物标志物.
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