开发一流的RNF4 PROTAC降解剂,作为肝细胞癌的潜在治疗药物
Hui Wan1, Yihang Liu1, Huimin Chang1
1Basic Medicine Research and Innovation Center for Novel Target and Therapeutic Intervention, Ministry of Education, College of Pharmacy, Chongqing Medical University, Chongqing, 400016, China.
European journal of medicinal chemistry
|February 13, 2026
概括
研究人员开发了RD12,一种新型的PROTAC,用于降解环指蛋白4 (RNF4),用于治疗肝细胞癌 (HCC). 这种RNF4降解剂在细胞系和小鼠模型中显示出强大的抗癌作用,为HCC提供了新的治疗策略.
科学领域:
- 生物化学 生物化学
- 分子生物学分子生物学
- 在瘤学瘤学.
背景情况:
- 环指蛋白4 (RNF4) 通过无处不在关键调节蛋白质,在癌症进展中发挥作用.
- RNF4是肝细胞癌 (HCC) 的潜在治疗点.
- 此前还没有开发出针对RNF4的特定抑制剂.
研究的目的:
- 设计和合成新型的蛋白质分解向化马体 (PROTACs),以诱导RNF4.4的降解.
- 评估这些PROTACs在降解RNF4和抑制HCC细胞增殖方面的有效性.
- 在临床前的HCC模型中评估化合物的治疗潜力.
主要方法:
- 设计和合成28个针对RNF4的PROTACs,基于一种共价结合剂.
- 在HCC细胞系中选RNF4降解和抗增殖活性的PROTACs.
- 在HCC小鼠模型中对化合物 (RD12) 的评估以及涉及无素-蛋白酶体系统的机制研究.
主要成果:
- RD12在多个HCC细胞系中表现出高效的RNF4降解和强大的抗增殖活性.
- 在HCC小鼠模型中,RD12表现出显著的抗瘤活性,没有明显的副作用.
- 机理学研究证实了RD12诱导的RNF4通过ubiquitin-proteasome系统降解,导致DNA损伤和亡.
结论:
- RD12是第一个针对RNF4降解的PROTAC.
- RD12在肝细胞癌 (HCC) 治疗方面显示出有前途的治疗潜力.
- 针对RNF4降解是HCC治疗的可行策略.
相关概念视频
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
02:58Regulated Protein Degradation
3.2K
3.2K
02:11Proteins: From Genes to Degradation
14.6K
Within a biological system, the DNA encodes the RNA, and the nucleotide sequence in the RNA further defines the amino acid sequence in the protein. This is referred to as “The Central Dogma of Molecular Biology” - a term coined by Francis Crick. Central dogma is a firm principle in biology that defines the flow of genetic information within any life form. The two fundamental steps in central dogma are - transcription and translation.
Transcription is the synthesis of RNA...
Transcription is the synthesis of RNA...
14.6K
02:11Proteins: From Genes to Degradation
4.6K
4.6K
01:25Drug Classes and Categories
3.1K
Drugs can be classified according to their chemical composition or their intended therapeutic application. For instance, anti-infective agents that possess the ability to eliminate pathogens or suppress their growth and reproduction can be grouped based on the organisms they target or their chemical structure. Furthermore, drugs can be divided into prescription, nonprescription, or controlled substances. Prescription medications, such as antibiotics, require oversight from a licensed healthcare...
3.1K
01:25Antibody Structure and Classes
9.4K
Antibodies, also known as immunoglobulins, are produced by B cells in response to foreign substances, such as bacteria and viruses. These proteins are critical for recognizing and neutralizing these substances, protecting the body from potential harm.
The basic structure of an antibody consists of four protein chains: two identical heavy chains and two identical light chains. These chains are held together by disulfide bonds and other non-covalent interactions, forming a Y-shaped structure.
The basic structure of an antibody consists of four protein chains: two identical heavy chains and two identical light chains. These chains are held together by disulfide bonds and other non-covalent interactions, forming a Y-shaped structure.
9.4K