在胃腺癌的进展和进化中空间解析的瘤生态系统和细胞状态
Haoran Ma1, Supriya Srivastava2, Shamaine Wei Ting Ho3
1Program in Cancer and Stem Cell Biology, Duke-NUS Medical School, Singapore, Singapore.
Cancer discovery
|January 8, 2025
概括
空间转录学和单细胞RNA测序揭示了胃癌中不同的瘤生态系统. 这些发现突出了瘤内部独特的进化路径和免疫微环境,影响了患者的预后.
科学领域:
- 在瘤学瘤学.
- 基因组学就是基因组学.
- 免疫学 免疫学 免疫学
背景情况:
- 胃癌表现出显著的内异质性.
- 了解瘤的空间结构对于破译癌症生物学至关重要.
研究的目的:
- 在胃癌中整合空间转录和单细胞RNA测序数据.
- 识别空间解析的表达模式及其与瘤微环境的关联.
主要方法:
- 使用 GeoMx 数字空间配置文件器进行空间转录.
- 结合来自多个胃癌样本的单细胞RNA测序数据.
主要成果:
- 识别了基于空间解析的表达的内异质性.
- 发现了两个与分子亚型,预后和 stromal 相互作用相关的独特进化轨迹.
- 描述了瘤-肌瘤接口作为一个独特的生态利基.
结论:
- 基因表达的空间组织显著影响胃癌异质性和免疫微环境.
- 独特的瘤进化路径与特定的分子和临床特征有关.
- 瘤-肌瘤接口是理解胃癌生态学的关键领域.
相关概念视频
02:07Tumor Progression
6.2K
Tumor progression is a phenomenon where the pre-formed tumor acquires successive mutations to become clinically more aggressive and malignant. In the 1950s, Foulds first described the stepwise progression of cancer cells through successive stages.
Colon cancer is one of the best-documented examples of tumor progression. Early mutation in the APC gene in colon cells causes a small growth on the colon wall called a polyp. With time, this polyp grows into a benign, pre-cancerous tumor. Further...
Colon cancer is one of the best-documented examples of tumor progression. Early mutation in the APC gene in colon cells causes a small growth on the colon wall called a polyp. With time, this polyp grows into a benign, pre-cancerous tumor. Further...
6.2K
02:17The Tumor Microenvironment
6.5K
Every normal cell or tissue is embedded in a complex local environment called stroma, consisting of different cell types, a basal membrane, and blood vessels. As normal cells mutate and develop into cancer cells, their local environment also changes to allow cancer progression. The tumor microenvironment (TME) consists of a complex cellular matrix of stromal cells and the developing tumor. The cross-talk between cancer cells and surrounding stromal cells is critical to disrupt normal tissue...
6.5K