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CUL4B通过抑制TGFBR3表达来增强食道状细胞癌的恶性表型
Qi Gong1, Yuxing Wang2, Kexin Zhu3
1Department of Gastroenterology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China; Department of Gastroenterology, Shandong Second Provincial General Hospital, Jinan, Shandong, China.
Biochemical and biophysical research communications
|July 24, 2023
概括
库林4B (CUL4B) 过度表达驱动食道癌的进展和耐药性,通过表观遗传沉默TGFBR3. 减少CUL4B抑制了癌症的生长和侵袭,突出了一个新的治疗点.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
背景情况:
- 库林4B (CUL4B) 是CRL4B复合体中的支架蛋白,在癌症中经常过度表达.
- 在食道状细胞癌 (ESCC) 中CUL4B的作用和表达尚不清楚.
研究的目的:
- 研究ESCC中CUL4B的表达和功能.
- 阐明CUL4B影响ESCC恶性瘤的分子机制.
主要方法:
- 在ESCC细胞中评估了CUL4B表达.
- 操纵CUL4B水平 (过度表达和敲击) 以研究其对扩散,入侵和耐药性的影响.
- 研究了CRL4B复合体与TGFBR3促进体的相互作用.
- 在TGFBR3促进体中分析了表观遗传修饰 (H2AK119单双化,PRC2,HDAC).
主要成果:
- CUL4B的上调增强了ESCC细胞的增殖,入侵和对西斯普拉丁的抗性.
- CUL4B的抑制抑制了这些恶性表型.
- CUL4B通过与其促进体结合并催化H2AK119单双化,与PRC2和HDAC协调,抑制TGFBR3的表达.
结论:
- 在促进ESCC恶性瘤方面,CUL4B起着至关重要的作用.
- CUL4B/TGFBR3轴是ESCC进展和化学抵抗的关键调节器.
- 针对CUL4B/TGFBR3通路可能为ESCC提供治疗策略.
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