空间转录学揭示了不同的和保存的瘤核心和边缘架构,预测生存和向治疗反应
Rohit Arora1, Christian Cao1,2, Mehul Kumar1,3
1Department of Biochemistry & Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.
Nature communications
|August 18, 2023
概括
这项研究揭示了口腔状细胞癌 (OSCC) 瘤核心和前沿区域的独特基因表达模式. 这些空间差异影响了癌症的进展和患者的预后,提供了新的治疗点.
科学领域:
- 在瘤学瘤学.
- 基因组学就是基因组学.
- 癌症生物学 癌症生物学
背景情况:
- 瘤微环境的空间组织显著影响癌症生物学和治疗疗效.
- 了解瘤内部的区域差异,例如瘤核心和前沿,对于破译癌症进展至关重要.
研究的目的:
- 使用综合分析,全面描述HPV阴性口腔状细胞癌 (OSCC) 瘤核心 (TC) 和前缘 (LE) 的恶性细胞.
- 确定保存和组织特定的转录结构及其在不同癌症类型中的临床影响.
主要方法:
- 对HPV阴性OSCC的综合单细胞和空间转录组分析.
- 对TC和LE之间的转录形状,细胞组成和配体受体相互作用进行比较分析.
- 在模型中探索空间调节的细胞发育和药物反应.
主要成果:
- TC和LE表现出不同的转录特征,细胞社区和信号相互作用.
- 在不同癌症中,LE基因表达特征保持不变,而TC特征则是组织特异的,这表明了常见的入侵机制.
- LE基因特征与较差的临床结果相关,而TC特征与多种癌症的预后改善有关.
- 在OSCC中,空间调节的细胞发育模式与可预测的药物反应有关.
结论:
- 在OSCC中的空间异质性是瘤行为和患者结果的关键决定因素.
- 已识别的泛癌LE和TC签名为瘤进展和入侵提供了洞察力.
- 交互式空间地图提供了开发基于空间架构的新,有针对性的治疗方法的基础资源.
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