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Updated: Feb 28, 2026

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Establishment of a Clinic-based Biorepository
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在皮肤状细胞癌中,p63和p73调节了收性和因子特异性的转录程序
bioRxiv : the preprint server for biology
|February 27, 2026
概括
TP63 (p63) 和其对应物TP73 (p73) 通过共享增强剂共同调节基因表达,在状细胞癌 (SCC) 瘤发生方面进行合作. 这种协调推动了瘤的扩散和维持,每个因素都有不同的作用.
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:
- 异常的转录调节是状细胞癌 (SCC) 的标志.
- 尽管在SCC中p63放大,但TP63 (p63) 和其对应物TP73 (p73) 在SCC病变发生中的特定作用尚未完全理解.
- 了解这些谱系转录因子如何协调瘤性程序至关重要.
研究的目的:
- 为了研究p73在皮肤SCC瘤发生中的功能贡献,与p63一起.
- 阐明p63和p73调节SCC中的基因表达和细胞过程的分子机制.
- 通过p63/p73共同监管调节的关键下游目标和信号通路的识别.
主要方法:
- 在SCC模型中整合染色体概况 (增强剂占用率) 和转录组概况.
- 分析皮肤SCC中的p63和p73表达和需求.
- 调查p63/p73复合体形成和增强器共占的情况.
- 功能性研究涉及消耗关键下游目标,如安菲瑞古林.
主要成果:
- 皮肤SCC中p73的上调调节,与p63一起,对于瘤发生至关重要.
- p63和p73形成异构体复合体,并共同占据远程增强剂,建立了一个共享的监管框架.
- 共同占用驱动着共享的繁殖计划和因子特定的输出 (p63:上皮电路;p73:DNA复制/压力路径).
- p63/p73 共同调节EGFR配体,特别是安菲瑞古林,创建一个送循环,放大线性基因信号.
- 安菲瑞古林的枯竭会导致复制物p63/p73的损失,损害增殖和瘤的形成.
结论:
- p63和p73在SCC中协同工作,利用共享的增强元件来驱动瘤转录程序.
- 这种伙伴关系涉及合作和特定因素的调控,影响核心扩散和独特的细胞通路.
- p63/p73-Amphiregulin轴代表了一个关键节点,将染色质调节与信号传递和SCC维护联系起来.
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