蛋白质基因组表征揭示了瘤发生和肺癌的进展,这种进展表现为亚固体结节
1Department of Thoracic Surgery, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, 200433, China.
Nature communications
|March 12, 2025
概括
这项研究揭示了胆固醇代谢和内质网膜应激是肺腺癌 (LUAD) 发展和进展的关键因素. 针对PCSK9和ER压力,为LUAD预防和治疗提供了潜在的策略.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 蛋白质组学是指蛋白质组学.
背景情况:
- 亚固体结节 (SSN) 是肺腺癌 (LUAD) 的常见放射性发现.
- 了解SSN的瘤发生和进展对于有效的临床管理至关重要.
- 现有的关于SSN在不同组织学阶段发展的基础分子机制的知识是有限的.
研究的目的:
- 综合分析LUAD的蛋白质基因组景观,将其呈现为SSNs.
- 阐明瘤发生和从早期到侵袭性阶段的进展的分子驱动因素.
- 为了确定潜在的治疗目标和预防策略的LUAD.
主要方法:
- 基因组学,蛋白质组学,蛋白质组学和糖蛋白质组学数据的综合分析.
- 该研究包括了66例LUD病例,跨越了三个组织学阶段:在位腺癌 (AIS),微侵袭性腺癌 (MIA) 和侵袭性腺癌 (IAC).
- 在体内实验中评估PCSK9剥离和ER应力调节对LUAD启动和进展的影响.
主要成果:
- 在前性AIS阶段观察到胆固醇代谢的异常调节.
- 发现蛋白转化酶亚提利辛/凯类型9 (PCSK9) 的向除促进了LUAD的启动.
- 持续的内等质网膜 (ER) 压力被确定为AIS向IAC进展的标志和生物标志物,其促进延迟了LUAD进展.
结论:
- 本研究提供了LUAD中SSN的详细蛋白质基因组特征.
- 这些发现强调了胆固醇代谢和ER压力在LUAD瘤发生和进展中的关键作用.
- 该研究提出了针对PCSK9和ER压力的新型预防和治疗策略,用于管理LUAD.
更多相关视频
相关概念视频
02:55The Nucleolus
8.6K
The nucleolus is the most prominent substructure of the nucleus. When it was first discovered, it was considered to be an isolated organelle that forms fibrils and granules. In 1931, the relationship between the nucleolus and chromosomes was first described by Heitz. He observed that the appearance and size of nucleolus varies depending on the stage of the cell cycle. He also noticed constricted regions on different chromosomes clustered together at definite cell cycle stages. These regions,...
8.6K
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