相关实验视频
Updated: Sep 12, 2025

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Induction and Analysis of Epithelial to Mesenchymal Transition
Published on: August 27, 2013
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ETS1编排了一个混合EMT程序,在体内驱动转移和免疫逃避
Benjamin Ziman1,2, Talia A Wenger1, Chehyun Nam1
1Center for Craniofacial Molecular Biology, Herman Ostrow School of Dentistry, and Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, CA, USA.
bioRxiv : the preprint server for biology
|August 8, 2025
概括
侵袭性癌症显示出内异质性 (ITH). 我们发现一种由ETS1驱动的混合上皮层介质细胞过渡 (hEMT) ITH程序,在上空消化状细胞癌 (UASCC) 中促进转移和免疫逃避.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 免疫学 免疫学 免疫学
背景情况:
- 转录性内异质性 (ITH) 是侵袭性癌症的一个关键特征.
- 在上空消化性状细胞癌 (UASCC) 中,ITH驱动转移和免疫逃逸的机制尚未完全理解.
研究的目的:
- 调查转录ITH程序在UASCC转移和免疫逃避中的作用.
- 确定激进的UASCC的关键调节器和治疗点.
主要方法:
- 单细胞RNA测序UASCC细胞和患者瘤.
- 在体内转移的测定.
- 药物查和基因表达的分析.
主要成果:
- 鉴定了一种混合上皮层介质细胞过渡 (hEMT) ITH 程序,与转移性传播有关.
- 发现转录因子ETS1是一个主调节器,激活前转移基因并促进远程传播.
- 此外,ETS1还被证明可以通过上调STAT1和PD-L1来诱导免疫冷瘤微环境,抑制T细胞透.
- 高ETS1表达与低生存率和对免疫检查点封锁的抵抗力相关.
- 发现ETS1高的UASCC对HSP90抑制剂很脆弱.
结论:
- 在UASCC中,ETS1是瘤转移和免疫逃避的关键驱动因素.
- 抑制HSP90代表了针对ETS1驱动的UASCC的潜在向治疗.
- 这些发现提供了针对攻击性ITH和克服免疫疗法耐药性的策略.
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