血清基甲基转移酶在健康和疾病中的多方面的作用
Jing Zhang1, Seong Eun Lee2, Jiyeon Yoon1
1Research Center for Endocrine and Metabolic Disease, Integrated Disease Research Institute, College of Medicine, Chungnam National University, Daejeon, Republic of Korea; Department of Medical Science, Chungnam National University School of Medicine, Daejeon, Republic of Korea; Department of Biochemistry, College of Medicine, Chungnam National University, Daejeon, Republic of Korea.
Molecules and cells
|July 30, 2025
概括
血清基甲基转移酶 (SHMT) 对于细胞生存和新陈代谢至关重要. 向SHMT通过恢复细胞平衡,为癌症和代谢疾病提供了潜在的新疗法.
科学领域:
- 生物化学 生物化学
- 代谢途径 代谢途径
- 酶学 是一种酶学.
背景情况:
- 血清基甲基转移酶 (SHMT) 对于1碳代谢至关重要,对于细胞生长,增殖和生存至关重要.
- SHMT,其同位体SHMT1 (细胞质) 和SHMT2 (线粒体),在核酸合成,甲基化和还氧化稳态中发挥着关键作用.
- SHMT的失调与癌症进展和代谢障碍,如心血管疾病,糖尿病和神经系统异常有关.
研究的目的:
- 提供SHMT在代谢调节中的作用的全面概述.
- 探索SHMT失调在癌症和代谢疾病中的影响.
- 突出针对SHMT的治疗潜力,特别是异形特异性抑制,用于新型治疗策略.
主要方法:
- 对SHMT在代谢途径中的功能进行文献综述.
- 对SHMT在癌症进展和代谢障碍中的参与进行分析.
- 评估最近关于SHMT抑制剂及其作用的研究.
主要成果:
- SHMT是生物合成和表观遗传过程的组成部分,通过氨酸和甘氨酸代谢.
- 异常的SHMT表达与瘤生长,代谢重编程,治疗耐药性和患者的不良结果相关.
- SHMT 抑制剂在减少瘤增殖和恢复代谢平衡方面已证明有效.
结论:
- SHMT是代谢途径的关键调节者,在瘤学和代谢医学方面具有重要意义.
- 向SHMT,特别是用异形特异性抑制剂,是一个有前途的治疗策略.
- 对SHMT抑制的进一步研究可能会导致癌症和代谢疾病的创新治疗方法.
相关概念视频
Phase II Reactions: Methylation Reactions
349
Methylation is a phase II biotransformation process involving the attachment of a methyl group to a substrate. Enzymes known as methyltransferases orchestrate this reaction.
The mechanism of methylation unfolds in two stages. The first stage sees a methyltransferase enzyme facilitating the transfer of a methyl group from S-adenosylmethionine (SAM) to the substrate, forming S-adenosylhomocysteine (SAH). The second stage involves further metabolism of SAH into homocysteine, which can be recycled...
The mechanism of methylation unfolds in two stages. The first stage sees a methyltransferase enzyme facilitating the transfer of a methyl group from S-adenosylmethionine (SAM) to the substrate, forming S-adenosylhomocysteine (SAH). The second stage involves further metabolism of SAH into homocysteine, which can be recycled...
349
Phosphorylation
51.2K
The addition or removal of phosphate groups from proteins is the most common chemical modification that regulates cellular processes. These modifications can affect the structure, activity, stability, and localization of proteins within cells as well as their interactions with other proteins.
During phosphorylation, protein kinases transfer the terminal phosphate group of ATP to specific amino acid side chains of substrate proteins. Serine, threonine, and tyrosine are the most commonly...
During phosphorylation, protein kinases transfer the terminal phosphate group of ATP to specific amino acid side chains of substrate proteins. Serine, threonine, and tyrosine are the most commonly...
51.2K
Sulfur Assimilation
77
Sulfur is an essential element in biological systems, contributing to synthesizing key biomolecules, including amino acids such as cysteine and methionine, and cofactors such as coenzyme A and biotin. Microorganisms primarily assimilate sulfur as sulfate (SO₄²⁻) from the environment, which must undergo a series of biochemical transformations before it can be incorporated into cellular components. As sulfate is highly oxidized, it must undergo assimilatory sulfate reduction to...
77
Covalently Linked Protein Regulators
7.2K
Proteins can undergo many types of post-translational modifications, often in response to changes in their environment. These modifications play an important role in the function and stability of these proteins. Covalently linked molecules include functional groups, such as methyl, acetyl, and phosphate groups, and also small proteins, such as ubiquitin. There are around 200 different types of covalent regulators that have been identified.
These groups modify specific amino acids in a protein....
These groups modify specific amino acids in a protein....
7.2K
The Proteasome
9.1K
Eukaryotic cells can degrade proteins through several pathways. One of the most important amongst these is the ubiquitin-proteasome pathway. It helps the cell eliminate the misfolded, damaged, or unwarranted cytoplasmic proteins in a highly specific manner.
In this pathway, the target proteins are first tagged with small proteins called ubiquitin. A series of enzymes carry out the ubiquitination of the target proteins - E1 (ubiquitin-activating enzyme), E2 (ubiquitin-conjugating enzyme), and E3...
In this pathway, the target proteins are first tagged with small proteins called ubiquitin. A series of enzymes carry out the ubiquitination of the target proteins - E1 (ubiquitin-activating enzyme), E2 (ubiquitin-conjugating enzyme), and E3...
9.1K
mTOR Signaling and Cancer Progression
3.9K
The mammalian target of rapamycin or mTOR protein was discovered in 1994 due to its direct interaction with rapamycin. The protein gets its name from a yeast homolog called TOR. The mTOR protein complex in mammalian cells plays a major role in balancing anabolic processes such as the synthesis of proteins, lipids, and nucleotides and catabolic processes, such as autophagy in response to environmental cues, such as availability of nutrients and growth factors.
The mTOR pathway or the...
The mTOR pathway or the...
3.9K


