使用支持矢量机器将结肠癌患者分为共识分子亚型的分类
Necla Koçhan1,2, Barış Emre Dayanç3
1Department of Mathematics, İzmir University of Economics, İzmir, Turkiye.
Turkish journal of biology = Turk biyoloji dergisi
|April 29, 2024
概括
这项研究开发了一种RNA-seq基因分类器,用于结肠癌分子亚型. 优化的25基因分类器实现了对共识分子亚型 (CMS) 的高特异性,帮助个性化治疗策略.
科学领域:
- 在瘤学瘤学.
- 基因组学就是基因组学.
- 生物信息学是一种生物信息学.
背景情况:
- 结肠癌表现出分子异质性,需要精确的瘤分类来进行有效的治疗.
- 共识分子亚型 (CMS) 框架为结肠癌提供了一个分子亚型方法.
- 目前基于RNA测序 (RNA-Seq) 的CMS分类方法在敏感性和特异性方面存在局限性.
研究的目的:
- 开发和优化基于RNA-Seq的基因分类器,用于将结肠癌患者的分子亚型分为CMS组.
- 识别亚型特异性和生存相关基因,以提高分类准确性.
主要方法:
- 使用模糊C-Means算法和日志等级测试,确定了亚型特异性和生存相关的基因.
- 将患者分为CMS组进行了分类,使用支持向量机进行了后向淘汰.
- 基于RNA-Seq的分类器的优化涉及选择25个基因以尽量减少分类错误.
主要成果:
- 一个优化的25基因签名被确定用于结肠癌分类,错误率最小.
- 通过使用包括精度,灵敏度,特异性,错误发现率和平衡准确性在内的指标来评估分类性能.
- 与CMS3相关的基因表现出最高的特异性,但最低的敏感性,这归因于这个亚型的小患者队列.
结论:
- 已经建立了一个用于结肠癌分类的基因列表,以最小化错误率.
- 开发的分类器有望提高结肠癌分子亚型的准确性.
- 需要进一步验证,特别是对于目前研究中患者代表性有限的亚型.
更多相关视频
04:09Predicting Treatment Response to Image-Guided Therapies Using Machine Learning: An Example for Trans-Arterial Treatment of Hepatocellular Carcinoma
Published on: October 10, 2018
8.2K
06:46Competing-Risk Nomogram for Predicting Cancer-Specific Survival in Multiple Primary Colorectal Cancer Patients after Surgery
Published on: September 27, 2024
259
相关概念视频
02:43Mouse Models of Cancer Study
Mice have long served as models for studying human biology and pathology because of their phylogenetic and physiological similarity with humans. They are also easy to maintain and breed in the laboratory, and hence, many inbred strains are now available for research. Studies on mice have contributed immeasurably to our understanding of cancer biology.
The development of transgenic, knockout, and knock-in mice has led to an exponential increase in their use as model organisms in research,...
The development of transgenic, knockout, and knock-in mice has led to an exponential increase in their use as model organisms in research,...
02:43Mouse Models of Cancer Study
Mice have long served as models for studying human biology and pathology because of their phylogenetic and physiological similarity with humans. They are also easy to maintain and breed in the laboratory, and hence, many inbred strains are now available for research. Studies on mice have contributed immeasurably to our understanding of cancer biology.
The development of transgenic, knockout, and knock-in mice has led to an exponential increase in their use as model organisms in research,...
The development of transgenic, knockout, and knock-in mice has led to an exponential increase in their use as model organisms in research,...