利用p97/VCP:为下一代癌症治疗药物提供转变性的AAA+ ATPase标
Maria Janina Carrera Espinoza1, Sarah K Tucker1, Sruthi Sureshkumar1
1Department of Medicine, University of Arizona Cancer Center, Tucson, AZ 85724, USA.
Cancers
|September 27, 2025
概括
向含有瓦洛辛的蛋白质 (VCP) /p97可能会选择性地杀死癌细胞. 这种蛋白质对于蛋白质降解至关重要,其抑制可以导致癌细胞死亡.
科学领域:
- 分子生物学分子生物学
- 细胞生物学 细胞生物学
- 在瘤学瘤学.
背景情况:
- 恶性细胞表现出增加的基础蛋白质合成,依赖于未展开的蛋白质反应 (UPR) 和ER相关降解 (ERAD) 途径的生存.
- 含有瓦洛辛的蛋白质 (VCP) / p97,AAA+ ATPase,对于蛋白质质量控制和稳态是必不可少的,因为它通过无素-蛋白酶系统 (UPS) 促进蛋白质降解.
- p97调节ERAD,其破坏导致蛋白质积累,UPR激活和蛋白质毒性细胞死亡.
研究的目的:
- 审查VCP/p97作为癌症治疗点的分子结构,细胞作用和临床潜力.
- 专注于p97抑制剂CB-5083和CB-5339,这是临床试验中的唯一一种.
- 探索组合策略以提高治疗疗效.
主要方法:
- 在癌症中VCP/p97功能的文献综述.
- 对p97抑制剂现有的临床试验数据的分析.
- 讨论分子机制和治疗策略.
主要成果:
- 抑制p97可以选择性地向具有高蛋白质合成率的癌细胞.
- CB-5083和CB-5339是临床阶段的p97抑制剂.
- 组合疗法显示出改善结果的潜力.
结论:
- p97是癌症治疗的一个有前途的精确目标.
- 准p97利用了癌细胞的代谢脆弱性.
- 对组合策略的进一步研究是有必要的,以最大限度地提高治疗效益.
相关概念视频
Anaphase Promoting Complex
3.3K
The stepwise destruction of specific proteins is necessary for the progression and completion of the cell cycle. Such proteins are ubiquitinated by ubiquitin ligases and then subsequently destroyed by the proteasome. The SCF (Skp1/Cullin/F-box) and the anaphase-promoting complex (APC) are two important ubiquitin ligases involved in cell cycle progression. While SCF is active throughout the cell cycle, APC gets activated during metaphase to anaphase transition. Cdc20 or Cdh1 binds to APC and...
3.3K
Targeted Cancer Therapies
8.6K
The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against...
There are several types of targeted therapies against...
8.6K
Adaptive Mechanisms in Cancer Cells
7.0K
Cancer cells accumulate genetic changes at an abnormally rapid rate due to the defects in the DNA repair mechanisms. From an evolutionary perspective, such genetic instability is advantageous for cancer development. Mutant cell lines accumulate a series of beneficial mutations that contribute to their progression into cancer.
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...
7.0K
Abnormal Proliferation
5.1K
Under normal conditions, most adult cells remain in a non-proliferative state unless stimulated by internal or external factors to replace lost cells. Abnormal cell proliferation is a condition in which the cell's growth exceeds and is uncoordinated with normal cells. In such situations, cell division persists in the same excessive manner even after cessation of the stimuli, leading to persistent tumors. The tumor arises from the damaged cells that replicate to pass the damage to the...
5.1K
Combination Therapies and Personalized Medicine
5.9K
Combining two or more treatment methods increases the life span of cancer patients while reducing damage to vital organs or tissue from the overuse of a single treatment. Combination therapy also targets different cancer-inducing pathways, thus reducing the chances of developing resistance to treatment.
The combination of the drug acetazolamide and sulforaphane is a good example of combination therapy to treat cancer. The cells in the interior of a large tumor often die due to the hypoxic and...
The combination of the drug acetazolamide and sulforaphane is a good example of combination therapy to treat cancer. The cells in the interior of a large tumor often die due to the hypoxic and...
5.9K
DNA Damage can Stall the Cell Cycle
10.0K
In response to DNA damage, cells can pause the cell cycle to assess and repair the breaks. However, the cell must check the DNA at certain critical stages during the cell cycle. If the cell cycle pauses before DNA replication, the cells will contain twice the amount of DNA. On the other hand, if cells arrest after DNA replication but before mitosis, they will contain four times the normal amount of DNA. With a host of specialized proteins at their disposal,cells must use the right protein at...
10.0K


