探测抑制HDM2-p53相互作用的类的结构要求
Toshiaki Hara1, Stewart R Durell, Michael C Myers
1Laboratory of Cell Biology, National Cancer Institute, National Institutes of Health/DHHS, Bethesda, MD 20892, USA.
Journal of the American Chemical Society
|February 9, 2006
概括
研究人员开发了合成类分子来抑制蛋白质-蛋白质相互作用,特别是针对人类双分钟2 (HDM2) -p53通路,这与癌症有关. 该研究发现,非螺旋型类是惊人的有效的HDM2-p53抑制剂.
科学领域:
- 生物化学 生物化学
- 药用化学 医学化学
- 药物发现 药物发现 药物发现
背景情况:
- 细胞过程依赖于蛋白质与蛋白质相互作用 (PPI).
- 选择性抑制PPI为癌症等疾病提供了治疗潜力.
- 人类双分钟2 (HDM2) 的过度表达与癌症的攻击性和耐药性相关,因为它通过非活性化p53.
研究的目的:
- 为合理设计抑制PPI的合成分子制定总体策略.
- 为了创建针对HDM2-p53相互作用的基于peptoid的抑制剂.
主要方法:
- 利用寡头类体作为支架来模仿PPI接口.
- 在抑制器设计中使用HDM2-p53复合物的结构信息.
- 为HDM2-p53结合抑制合成和评估的类衍生物.
主要成果:
- 设计和合成的HDM2-p53相互作用的类抑制剂.
- 鉴定出非螺旋型类作为意想不到的强效抑制剂.
- 证明了刚性,螺旋状的状支架并不总是最佳的抑制剂的发展.
结论:
- 寡头类类可以作为设计PPI抑制剂的多功能支架.
- 非螺旋型形结构可以是有效的HDM2-p53相互作用的抑制剂.
- PPI 抑制剂的合理设计需要探索各种结构动机,而不仅仅是刚性支架.
相关概念视频
02:04Covalently Linked Protein Regulators
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.
02:23Abnormal Proliferation
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 daughter...