DAPL1由Np63和GRα激活,并调节脂质代谢
Heung-Seok Bae1,2, Yong-In Kim1,3, DongWook Kim1
1Department of Biochemistry, College of Veterinary Medicine, BK21 FOUR Future Veterinary Medicine Leading Education and Research Center, Research Institute for Veterinary Science, and, Seoul National University , 1 Gwanak-Ro, Gwanak-Gu, Seoul, 08826, Republic of Korea.
Journal of molecular medicine (Berlin, Germany)
|January 31, 2026
概括
与死亡相关的蛋白质像1 (DAPL1) 在状细胞癌中表达很高,而不是腺癌. DAPL1调节脂质新陈代谢,影响淘汰小鼠的体重和头发颜色.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 代谢学 代谢学 代谢学
背景情况:
- 非小细胞肺癌 (NSCLC) 占肺癌病例的80%,主要亚型包括肺腺癌 (LUAD) 和肺状细胞癌 (LUSC).
- 了解区分NSCLC亚型的分子驱动因素对于向治疗至关重要.
研究的目的:
- 为了研究与死亡相关的蛋白质1 (DAPL1) 在NSCLC亚型中的作用.
- 确定调节DAPL1表达和功能的分子通路和转录因子.
主要方法:
- 从LUAD和LUSC患者的癌症和相邻的正常组织上进行RNA测序 (RNA-seq).
- 产生和分析DAPL1淘汰赛 (KO) 小鼠表型.
- DAPL1水平与脂质代谢途径基因之间的相关性分析.
- 识别激活DAPL1.1的转录因子 (Np63,GRα).
主要成果:
- DAPL1在LUSC中表达高,但在LUAD中表达低.
- 脂质代谢基因 (Fdft1,Pcyt1a,Sptlc1) 与LUSC中的DAPL1水平相关.
- DAPL1 KO小鼠表现出改变的体重和头发颜色,受饮食中的胆水平的影响.
- DAPL1通过Fdft1,Pcyt1a和Sptlc1的mRNA调节胆固醇,脂胆 (PC) 和髓 (SM).
结论:
- DAPL1是LUSC的潜在生物标志物,与LUAD不同.
- Np63和GRα转录因子激活DAPL1,这表明LUSC中的一个调节网络.
- DAPL1在脂质代谢中起着重要作用,影响生理特征,并可能导致细胞酸化.
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