一种共价的全分子可以抑制NRF2依赖的癌症生长
Nilotpal Roy1, Tine Wyseure1, I-Chung Lo2
1Vividion Therapeutics (United States) San Diego United States.
Cancer discovery
|December 19, 2025
概括
一种名为VVD-065的新药通过促进NRF2的降解来向NRF2通路. 这种NRF2抑制剂在减少瘤生长和增加对癌症疗法的敏感性方面表现有前途.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 药物发现 药物发现 药物发现
背景情况:
- NRF2转录因子对癌细胞存活至关重要,促进氧化恒温和代谢重编程.
- NRF2活性瘤通常依赖于NRF2,并且对化学疗法和放射疗法等常规疗法具有抗性.
研究的目的:
- 描述VVD-065,一种针对NRF2途径的新型抑制剂.
- 阐明VVD-065作为一流的全性分子抑制剂的作用机制.
主要方法:
- 研究了VVD-065与KEAP1的相互作用,特别是Cys151.1.
- 评估了VVD-065对KEAP1-CUL3无素-酶复合体和NRF2降解的影响.
- 评估了VVD-065在抑制NRF2依赖性瘤生长和使癌细胞对化疗/放射治疗敏感方面的疗效.
主要成果:
- VVD-065与KEAP1 Cys151共同结合,增强KEAP1-CUL3复合体的形成并促进NRF2的降解.
- 与之前的化合物不同,VVD-065稳定了KEAP1-CUL3复合体,与破坏其稳定的Cys151导向化合物形成鲜明对比.
- 在依赖NRF2的癌症中,VVD-065证明了瘤生长的抑制和对化疗/放射治疗的敏感性增加.
结论:
- VVD-065代表了一种新的治疗策略,通过一种全性分子合剂机制来准NRF2降解.
- KEAP1 Cys151 作为NRF2稳定性的可调节调节器,VVD-065 提供了调节这种相互作用的新方法.
- 这些发现支持正在进行的VVD-065癌症治疗I期临床试验.
相关概念视频
Adaptive Mechanisms in Cancer Cells
6.9K
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,...
6.9K
Cancer-Critical Genes II: Tumor Suppressor Genes
9.3K
Genes usually encode proteins necessary for the proper functioning of a healthy cell. Mutations can often cause changes to the gene expression pattern, thereby altering the phenotype.
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
9.3K
mTOR Signaling and Cancer Progression
4.6K
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...
4.6K
Cancer Stem Cells and Tumor Maintenance
5.8K
Early diagnosis and treatment can often cure cancer. However, even with treatment, residual cells called cancer stem cells (CSC) might remain, often causing tumor recurrence. These cancer stem cells possess the potential for self-renewal and multi-lineage differentiation and are often responsible for the therapeutic resistance displayed in most cancers.
Cancer stem cells are thought to originate from tissue-specific normal stem cells or progenitor cells. The normal stem cells usually reside in...
Cancer stem cells are thought to originate from tissue-specific normal stem cells or progenitor cells. The normal stem cells usually reside in...
5.8K
Covalently Linked Protein Regulators
8.6K
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....
8.6K
Covalently Linked Protein Regulators
2.0K
2.0K
