整合性多基因特征使质瘤中的代谢和免疫亚型分层化
Jinwei Li1,2,3, Zeya Yan2,3, Yang Zhang4
1Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, China.
JCO precision oncology
|September 26, 2025
概括
这项研究使用多omics和MRI放射学来分类质瘤,识别代谢和免疫亚型. 代谢低/瘤微环境低的亚型显示出最好的预后,指导个性化治疗策略.
科学领域:
- 神经瘤学神经瘤学
- 基因组学就是基因组学.
- 无线电学 (Radiomics) 是一种无线电学.
- 免疫学 免疫学 免疫学
- 代谢概况分析是指代谢概况分析.
背景情况:
- 质瘤是一种具有攻击性的中枢神经系统 (CNS) 瘤,其特点是显著的异质性,使治疗策略复杂化.
- 精确分类质瘤亚型对于开发有效和个性化的治疗方法至关重要.
研究的目的:
- 通过将多omics数据 (基因组学) 与基于磁共振成像 (MRI) 的放射学集成来增强质瘤分类.
- 专注于识别和表征质瘤内的代谢和免疫亚型.
- 为非侵入性质瘤亚型开发一个强大的框架.
主要方法:
- 分析了来自1720名质瘤患者的转录组数据,重点关注与代谢相关的基因和免疫细胞.
- 开发一种新陈代谢-免疫分类器,以定义四个结质瘤子组:新陈代谢高/瘤微环境 (TME) 高,新陈代谢低/TME高,新陈代谢高/TME低,新陈代谢低/TME低.
- 应用多队列MRI放射学和机器学习算法用于非侵入性亚型预测.
- 使用单细胞RNA和空间转录组测序验证子组的代谢和免疫特征.
主要成果:
- 代谢低/TMElow亚组显示出最有利的预后,而代谢高/TMEhigh亚组显示出最差的结果.
- 机器学习模型成功地使用MRI放射学数据非侵入性预测了质瘤亚型.
- 单细胞RNA测序证实了确定质瘤亚组的不同代谢和免疫特征,突出显示了显著的瘤微环境 (TME) 异质性.
结论:
- 将多omics数据与MRI放射学数据集成,为精确的质瘤分类提供了一种强大的方法.
- 这项研究强调了新陈代谢和免疫分析对理解质瘤异质性的重要性.
- 这些发现支持基于其特定亚型的质瘤患者开发更个性化的治疗策略.
相关概念视频
02:18Cancer
Cancers arise due to mutations in genes involved in the regulation of cell division, which leads to unrestricted cell proliferation. Modern science and medicine have made great strides in the understanding and treatment of cancer, including eradicating cancer in some patients. However, there is still no cure for cancer. This is largely due to the fact that cancer is a large group of many diseases.
02:21Cancers Originate from Somatic Mutations in a Single Cell
Cancer arises from mutations in the critical genes that allow healthy cells to escape cell cycle regulation and acquire the ability to proliferate indefinitely. Though originating from a single mutation event in one of the originator cells, cancer progresses when the mutant cell lines continue to gain more and more mutations, and finally, become malignant. For example, chronic myelogenous leukemia (CML) develops initially as a non-lethal increase in white blood cells, which progressively...
02:07Tumor Progression
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...
02:53Adaptive Mechanisms in Cancer Cells
Cancer cells accumulate genetic changes at an abnormally rapid rate due to the defects in the DNA repair mechanisms. From an evolutionary perspective, such genetic instability is advantageous for cancer development. Mutant cell lines accumulate a series of beneficial mutations that contribute to their progression into cancer.
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...
02:50Combination Therapies and Personalized Medicine
Combining two or more treatment methods increases the life span of cancer patients while reducing damage to vital organs or tissue from the overuse of a single treatment. Combination therapy also targets different cancer-inducing pathways, thus reducing the chances of developing resistance to treatment.
The combination of the drug acetazolamide and sulforaphane is a good example of combination therapy to treat cancer. The cells in the interior of a large tumor often die due to the hypoxic and...
The combination of the drug acetazolamide and sulforaphane is a good example of combination therapy to treat cancer. The cells in the interior of a large tumor often die due to the hypoxic and...
02:53Adaptive Mechanisms in Cancer Cells
Cancer cells accumulate genetic changes at an abnormally rapid rate due to the defects in the DNA repair mechanisms. From an evolutionary perspective, such genetic instability is advantageous for cancer development. Mutant cell lines accumulate a series of beneficial mutations that contribute to their progression into cancer.
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...