深度学习使瘤微环境的微生物概况和宿主基因表达的整合成为可能,以便在不同类型的癌症中进行可解释的生存亚型
Haohong Zhang1, Xinghao Xiong1, Mingyue Cheng1
1Key Laboratory of Molecular Biophysics of the Ministry of Education, Hubei Key Laboratory of Bioinformatics and Molecular-Imaging, Center of AI Biology, Department of Bioinformatics and Systems Biology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, Hubei, China.
mSystems
|November 20, 2024
概括
这项研究介绍了ASD-cancer,这是一个深度学习工具,通过分析瘤微生物组和基因表达数据来识别癌症患者生存亚型. 该框架改善了针对个性化癌症治疗的风险分层和生物标志物发现.
科学领域:
- 在瘤学瘤学.
- 生物信息学是一种生物信息学.
- 微生物组研究 微生物组研究
背景情况:
- 瘤微生物组影响癌症的发展和治疗反应.
- 了解瘤微生物,宿主基因和患者生存之间的相互作用对于个性化医学至关重要.
- 目前的方法很难完全阐明瘤微环境中的这些复杂关系.
研究的目的:
- 开发一种新的深度学习框架,ASD-cancer (基于自编码器的癌症亚型检测器),用于分析瘤微生物组和转录组数据.
- 在各种癌症类型中识别不同的患者生存亚型.
- 发现与生存相关的生物标志物和微生物与宿主基因相互作用.
主要方法:
- 利用半监督深度学习方法 (ASD-癌症) 来从瘤微生物组和转录组数据中提取与生存相关的特征.
- 将框架应用于癌症基因组图谱 (TCGA) 数据库,分析了20种癌症类型的样本.
- 使用统计分析,包括日志级别测试,以比较风险分层与传统方法,如主要组件分析 (PCA).
主要成果:
- 在分析的所有20种癌症类型中确定了两个统计学上不同的生存亚型.
- 与PCA相比,ASD癌症显著改善了风险分层,特别是肝肝细胞癌 (LIHC).
- 准确预测生存亚型,并确定潜在的微生物与宿主基因相互作用 (例如,LIHC中的*Arcobacter*和HIF-1信号) 作为生存生物标志物.
结论:
- ASD-cancer有效地解码复杂的瘤微环境数据,以实现准确的生存亚型和生物标志物发现.
- 该框架提供了卓越的风险分层,有助于精细的患者预后.
- 这些发现通过确定潜在的治疗点,促进个性化治疗策略,并增强对癌症中微生物与宿主相互作用的理解.
相关概念视频
The Tumor Microenvironment
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...
The Tumor Microenvironment
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...


