在多焦点地面玻璃结节肺癌中解读瘤间异质性:用于精确管理的克隆进化洞察力
Chu-Long Xie1,2,3, Xiao-Yang Hua1,3, Qi Zhao3,4
1Department of Thoracic Surgery, Sun Yat-sen University Cancer Center, Guangzhou, PR China.
JTCVS open
|December 31, 2025
概括
克隆进化分析准确地区分了多焦点地面玻璃结节肺癌,将大多数确定为独立的初级癌症. 这种基因分析可以改善诊断,并指导个性化治疗策略,以获得更好的患者结果.
科学领域:
- 在瘤学瘤学.
- 基因组学就是基因组学.
- 肺部病理学 肺部病理学
背景情况:
- 多焦点地面玻璃结节 (GGN) 肺癌由于瘤间异质性而存在诊断挑战.
- 目前的治疗策略受到缺乏对这些瘤中异质性的理解所阻碍.
研究的目的:
- 为了描述多焦点GGN肺癌的瘤间异质性.
- 在GGN肺癌中为诊断和治疗决策提供基于证据的框架.
主要方法:
- 在60个手术切除的肺GGN上进行了多区域全外体序列测定 (WES),并与正常组织匹配.
- 克隆进化分析 (CEA) 用于评估亚克隆扩张,并将克隆关系与综合组织学评估 (CHA) 进行比较.
- 进行了纵向跟踪,以验证发现.
主要成果:
- 在分析的43种瘤对中,CEA将95.3%归类为独立原发性瘤 (IPTs),4.7%为肺内转移 (IMs).
- 通过将66.7%的CHA识别的IM重新归类为IPT,CEA证明了卓越的准确性.
- 与IPT患者不同的是,IM患者在57.5个月的中位随访期间出现了复发和进展.
结论:
- 克隆进化分析揭示了多焦点GGN肺癌中显著的瘤间异质性.
- 基因分析提供了额外的诊断价值,大多数病例是IPT,但有一小部分表明转移性过程.
- 这些发现支持一个精确的框架,整合分子数据,以优化监测和治疗.
相关概念视频
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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...
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Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...
Tumor 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...
Adaptive 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,...
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