MTFP1通过调节线粒体新陈代谢重编程来驱动胰腺癌肝脏转移殖民
Yang Chen1,2,3, Gao-Wei Jin1,2,3, Li-Hong He1,2,3
1Department of Hepatobiliary and Pancreatic Surgery, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.
Gut
|February 9, 2026
概括
线粒体分裂蛋白1 (MTFP1) 通过重编程新陈代谢和抑制免疫细胞驱动胰腺癌肝脏转移. 抑制MTFP1或谷氨酸的吸收可能为胰腺管道腺癌 (PDAC) 提供新的治疗策略.
科学领域:
- * 瘤学 瘤学是一门专业.
- * 分子生物学 * 分子生物学
- * 免疫学 免疫学
背景情况:
- *胰腺管腺癌 (PDAC) 经常转移到肝脏,是癌症死亡的主要原因.
- *变化的线粒体动力学和代谢重编程在PDAC进展和免疫逃避中至关重要.
- *了解这些机制是开发肝转移的有效治疗方法的关键.
研究的目的:
- * 确定PDAC肝脏殖民中的线粒体功能的关键调节者.
- *阐明线粒体重编程在塑造免疫抑制瘤微环境 (TME) 中的作用.
- * 探索PDAC肝转移的潜在治疗点.
主要方法:
- *利用全基因组CRISPR查,体内小鼠模型和体外细胞选择来识别PDAC肝脏殖民驱动因素.
- *使用PDAC器官,代谢流量分析,单细胞RNA测序和空间代谢学来研究MTFP1的功能.
- * 进行了谷氨S转移酶 (GST) 下拉测定和虚拟查,以确定MTFP1抑制剂.
主要成果:
- *确定MTFP1是PDAC肝脏殖民的关键驱动因素,通过ATP合成酶调节增强氧化酸化 (OXPHOS).
- * 证明MTFP1诱导的线粒体分裂和ROS产生通过PI3K/AKT/c-MYC通路对SLC1A5进行上调,从而损害CD8+ T细胞的反应.
- *发现KPT 9274 (ATG-019) 是一种有效的MTFP1抑制剂,并表明限制谷氨酸或抑制MTFP1可以逆转TME免疫抑制并减少肝转移.
结论:
- *增强的MTFP1表达促进了通过ROS/PI3K/AKT/c-MYC/SLC1A5通路驱动的高调节的谷氨酸-OXPHOS轴的PDAC肝脏殖民.
- * 抑制MTFP1或限制谷氨酸可以逆转TME免疫抑制并减少PDAC肝转移.
- *针对MTFP1代表了PDAC患者肝转移的一个有前途的治疗策略.
相关概念视频
01:19Regulation of Metabolism
11.7K
Cellular needs and conditions vary from cell to cell and change within individual cells over time. For example, the required enzymes and energetic demands of stomach cells are different from those of fat storage cells, skin cells, blood cells, and nerve cells. Furthermore, a digestive cell works much harder to process and break down nutrients during the time that closely follows a meal compared with many hours after a meal. As these cellular demands and conditions vary, so do the amounts and...
11.7K
02:59Animal Mitochondrial Genetics
9.3K
Among all the organelles in an animal cell, only mitochondria have their own independent genomes. Animal mitochondrial DNA is a double-stranded, closed-circular molecule with around 20,000 base pairs. Mitochondrial DNA is unique in that one of its two strands, the heavy, or H, -strand is guanine rich, whereas the complementary strand is cytosine rich and called the light, or L, -strand. Compared to nuclear DNA, mitochondrial DNA has a very low percentage of non-coding regions and is marked by...
9.3K
00:52What is Metabolism?
132.2K
Overview
132.2K
02:58Regulated Protein Degradation
8.9K
It is vital to regulate the activity of enzymatic as well as non-enzymatic proteins inside the cell. This can be achieved either through creating a balance between their rate of synthesis and degradation or regulating the intrinsic activity of the protein. Both these regulation mechanisms play an essential role in the normal functioning of cells.
Protein degradation plays two important roles in the cells. It helps to protect cells from misfolded or damaged proteins before they lead to a...
Protein degradation plays two important roles in the cells. It helps to protect cells from misfolded or damaged proteins before they lead to a...
8.9K
01:37Energy to Drive Translocation
2.9K
Mitochondrial protein import is powered by two distinct energy sources: ATP hydrolysis and electrochemical potential across the inner membrane. Newly synthesized precursors are bound by cytosolic chaperones of the Hsp70 family, which guide them to the import receptors on the mitochondrial surface. Utilizing the energy of ATP hydrolysis, Hsp70 chaperones transfer these precursors to the TOM receptors on the mitochondrial outer membrane.
Generally, polypeptides are unfolded by two distinct...
Generally, polypeptides are unfolded by two distinct...
2.9K
02:16Comparing Mitochondrial, Chloroplast, and Prokaryotic Genomes
16.8K
The present-day mitochondrial and chloroplast genomes have retained some of the characteristics of their ancestral prokaryotes and also have acquired new attributes during their evolution within eukaryotic cells. Like prokaryotic genomes, mitochondrial and chloroplast genomes neither bind with histone-like proteins nor show complex packaging into chromosome-like structures, as observed in eukaryotes. Unlike mitotic cell divisions observed in eukaryotic cells, mitochondria and chloroplasts...
16.8K