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综合增强剂监管网络通过增强剂-促进剂循环在胃癌中
Tianhui Zhu1, Atsushi Okabe1,2, Genki Usui1,3
1Department of Molecular Oncology, Graduate School of Medicine, Chiba University, Chiba 260-8670, Japan.
NAR cancer
|May 9, 2024
概括
胃癌 (GC) 细胞生长是由MYB瘤基因通过增强剂-促进剂循环的激活驱动的. 抑制这种循环抑制了GC细胞的增殖,确定了一个潜在的治疗标.
科学领域:
- 基因组学就是基因组学.
- 癌症生物学 癌症生物学
- 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:
- 增强器cis-regulatory元素对于基因调节和癌症癌基因转录至关重要.
- 胃癌 (GC) 涉及复杂的遗传和表观遗传改变,影响细胞生长.
研究的目的:
- 为了全面分析色素相互作用,基因组修饰和基因表达在GC细胞与正常细胞.
- 确定GC特异性增强剂,转录因子及其在瘤基因激活和细胞生长中的作用.
主要方法:
- 在GC细胞系和正常胃细胞中分析长距离染色质相互作用,基因素修饰和染色质可访问性.
- 增强剂-促进剂相互作用和CRISPR干扰 (dCas9-KRAB) 的动机分析,用于功能验证.
- 胃粘膜的单细胞RNA测序与肠道转化.
主要成果:
- 特定于GC的增强剂通过增强剂-促进剂循环激活瘤基因,包括MYB,具有丰富的GC特异性转录因子,如TCF7.
- 临床GC样本显示MYB位置的表观遗传激活和TCF7和MYB的上调.
- 在肠道干细胞中观察到高TCF7和MYB表达;抑制MYB增强剂-促进剂循环显著抑制了GC细胞生长.
结论:
- MYB被确定为一种对GC细胞生长至关重要的瘤基因,由特定的循环形成增强剂激活.
- MYB增强剂-促进剂循环代表了胃癌的潜在治疗标.
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