增强器劫持HELLS促进巨细胞M2极化导致前列腺癌患者的预后不佳
Lilin Wan1, Yue Hou2, Dongfang Jiang3
1Department of Urology, Affiliated Zhongda Hospital of Southeast University, Nanjing, Jiangsu, 210009, China.
Biochimica et biophysica acta. Molecular basis of disease
|October 29, 2025
概括
增强器劫持通过激活HELLS基因驱动前列腺癌 (PCa) 的进展,促进恶性细胞表型和M2巨分化. 这种被劫持的增强剂可以作为PCa的早期诊断指标.
科学领域:
- 基因组学和癌症生物学
- 分子瘤学分子瘤学
- 表观遗传学和基因调控
背景情况:
- 癌症基因组中的大规模体质结构变异 (SVs) 可以改变3D基因组结构,可能激活瘤基因.
- 增强器劫持事件与癌症的进展有关,但它们在前列腺癌 (PCa) 中对非编码SVs的原型基因激活的作用尚不清楚.
- 了解这些机制对于识别PCa中新型治疗点和诊断标志物至关重要.
研究的目的:
- 在前列腺癌 (PCa) 中选和验证增强器劫持事件.
- 研究增强器劫持在PCa进展中的功能作用,重点关注原型基因激活和恶性表型.
- 探索HELLS表达,瘤特征和PCa中的瘤免疫微环境之间的相关性.
主要方法:
- 在PCa中选增强器劫持事件.
- 使用CRISPR淘汰和光在位杂交 (FISH) 的验证.
- 通过细胞增殖,迁移测定,流细胞计,免疫组织化学,动物实验和生物信息学分析进行功能分析.
- 对HELLS表达与临床参数和免疫亚型的相关性分析.
主要成果:
- 确定了HELLS作为PCa中的预后相关基因,它参与了驱动其子宫外表达的增强器劫持事件.
- 宫外HELLS表达促进PCa细胞的增殖和迁移,与瘤新抗原负荷,格里森得分,病理阶段,PSA水平和入侵积极相关.
- 增强器劫持HELLS增强免疫透和M2巨分化,HELLS在PCa组织内的M2巨中高度表达.
结论:
- 增强器劫持驱动HELLS表达,通过增强的恶性表型和M2巨细胞两极分化促进PCa的进展.
- 在PCa中,HELLS是关键的调解者,它将结构变异与瘤基因激活和免疫调节联系起来.
- 被劫持的HELLS增强剂为PCa诊断提供了一个潜在的新型早期遗传指标.
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