表皮-介质细胞过渡促进了代谢重编程以抑制铁灭症
Wenzheng Guo1, Zhibing Duan1, Jingjing Wu1
1Departments of Molecular and Cellular Biochemistry, and the Markey Cancer Center, College of Medicine, University of Kentucky, Lexington, KY 40506, United States.
Seminars in cancer biology
|March 9, 2025
概括
表皮-介质细胞过渡 (EMT) 增加了癌细胞的可塑性和转移. 此外,EMT还会触发新陈代谢变化以抵抗细胞死亡途径铁亡,从而提供新的治疗点.
科学领域:
- 癌症生物学 癌症生物学
- 细胞可塑性 细胞可塑性
- 代谢调节 代谢调节 代谢调节
背景情况:
- 表皮-介质细胞过渡 (EMT) 对于发育和转移至关重要,赋予茎状特征和形态变化.
- EMT涉及细胞骨重组和由于多不和脂肪酸 (PUFA) 的膜刚性降低,增强细胞运动性.
- 高水平的PUFA增加了对脂质过氧化和ferroptosis的敏感性,这是一个受调节的细胞死亡途径.
研究的目的:
- 总结最近关于EMT,脂质代谢和铁亡之间的相互作用的发现.
- 讨论这些相互作用如何调节转移性癌细胞中的细胞可塑性和铁灭性抵抗.
- 探索针对这些途径的潜在治疗干预措施.
主要方法:
- 文献综述和当前研究结果的综合.
- 分析 EMT,脂质代谢和铁化之间的分子机制.
- 在EMT和ferroptosis缓解中讨论表观遗传调节.
主要成果:
- 通过改变膜性质,EMT可以增强细胞可塑性和转移潜力.
- 代谢重编程,特别是在脂质代谢中,是由EMT诱导的,以抵消ferroptosis.
- 表观遗传机制在调节EMT和减轻ferroptosis诱导的损害方面发挥着作用.
结论:
- 在EMT,脂质代谢和铁化之间的复杂相互作用代表了癌症转移中的关键调节层.
- 了解这些相互作用提供了关于细胞可塑性和铁灭抵抗性的见解.
- 针对这些途径为新的癌症治疗策略提供了有希望的途径.
相关概念视频
Necrosis
3.9K
Necrosis is considered as an “accidental” or unexpected form of cell death that ends in cell lysis. The first noticeable mention of “necrosis” was in 1859 when Rudolf Virchow used this term to describe advanced tissue breakdown in his compilation titled “Cell Pathology”.
Morphological Manifestations of Necrosis
Necrotic cells show different types of morphological appearance depending on the type of tissue and infection. In coagulative necrosis, cells become...
Morphological Manifestations of Necrosis
Necrotic cells show different types of morphological appearance depending on the type of tissue and infection. In coagulative necrosis, cells become...
3.9K
Metastasis
5.5K
Metastasis is the spread of cancer cells from the original site to distant locations in the body. Cancer cells can spread via blood vessels (hematogenous) as well as lymph vessels in the body.
Epithelial-to-Mesenchymal Transition
The epithelial-to-mesenchymal transition or EMT is a developmental process commonly observed in wound healing, embryogenesis, and cancer metastasis. EMT is induced by transforming growth factor-beta (TGF-β) or receptor tyrosine kinase (RTK) ligands, which further...
Epithelial-to-Mesenchymal Transition
The epithelial-to-mesenchymal transition or EMT is a developmental process commonly observed in wound healing, embryogenesis, and cancer metastasis. EMT is induced by transforming growth factor-beta (TGF-β) or receptor tyrosine kinase (RTK) ligands, which further...
5.5K
Forced Transdifferentiation
1.9K
Transdifferentiation, also known as lineage reprogramming, was first discovered by Selman and Kafatos in 1974 in silkmoths. They observed that the moths’ cuticle-producing cells transformed into salt-producing cells. Many such cases of natural transdifferentiation occur in organisms. In humans, pancreatic alpha cells can become beta cells. In newts, the loss of the eye’s lens causes the pigmented epithelial cells to transdifferentiate into the lens cells.
Artificial...
Artificial...
1.9K
Electron Transport Chain: Complex I and II
10.0K
The mitochondrial electron transport chain (ETC) is the main energy generation system in the eukaryotic cells. However, mitochondria also produce cytotoxic reactive oxygen species (ROS) due to the large electron flow during oxidative phosphorylation. While Complex I is one of the primary sources of superoxide radicals, ROS production by Complex II is uncommon and may only be observed in cancer cells with mutated complexes.
ROS generation is regulated and maintained at moderate levels necessary...
ROS generation is regulated and maintained at moderate levels necessary...
10.0K
Cadherins in Tissue Organization
2.9K
The cadherins are a superfamily of cell adhesion molecules comprising over 180 variants, with specific tissues expressing a particular combination of cadherin types. Cadherins generally exhibit homophilic binding; i.e., cadherins on one cell bind to cadherins of the same or closely related type on another cell. Thus, cells of the same type have a specific affinity to bind to each other and sort themselves into clusters to form tissues.
Cell Sorting During Development
Cell sorting plays an...
Cell Sorting During Development
Cell sorting plays an...
2.9K
The Early Endosome: Endocytosis of Transferrin
3.2K
Essential proteins such as insulin or low-density lipoprotein (LDL) and micronutrients such as iron enter a eukaryotic cell through receptor-mediated endocytosis. Subsequently, the early endosomes fuse with the vesicles containing such receptor-ligand complexes and play a vital role in sorting the incoming ligands and receptors. While the ligands are either degraded inside the vesicle or released into the cytosol, their receptors are returned to the plasma membrane for further rounds of...
3.2K


