针对人类cathepsin K抑制的新型选择性以proline为基础的类药物
Felipe Cardoso Prado Martins1, Fernanda Dos Reis Rocho1, Vinícius Bonatto1
1Medicinal and Biological Chemistry Group, Institute of Chemistry of São Carlos, University of São Paulo, Avenue Trabalhador Sancarlense, 400, 23566-590 São Carlos/SP, Brazil.
研究人员开发了新的基于プロ林的抑制剂,可以选择性地向人类甲素K (CatK),这是骨质疏松症的关键酶. 最强大的抑制剂对CatK具有很高的亲和力,而不会影响其他cathepsins.
科学领域:
- 生物化学 生化学
- 药用化学 医学化学
- 药理学 药理学是指药理学的学科.
背景情况:
- 人类甲素K (CatK) 是骨基质降解中的关键酶,也是骨质疏松症的有希望的治疗点.
- CatK的S2亚站点很小,浅,偏好或氧残留物.
研究的目的:
- 设计和合成新型的,基于的硬性皮多米米特抑制剂,向人类CatK.
- 为了实现 CatK 选择性抑制,而不是其他人类甲素 (B,L 和 S).
主要方法:
- 在基于二二基的抑制剂中对P2氨酸片段的化,以制造基于的类似物.
- 合成包含三甲基pyrazole和4-methylproline替代物的新型peptidomimetics.
- 在体外酶分析以确定CatK抑制和对B,L和S类甲素的选择性.
主要成果:
- 新设计的以林为基础的抑制剂表明选择性抑制CatK.
- 最强大的抑制剂对CatK表现出很高的亲和力 (pKi = 7.3,50.1nM).
- 这种化合物对甲素B,L和S没有抑制活性,突显了其特异性.
结论:
- 基于proline的刚性类型的开发代表了创建强大和选择性的CatK抑制剂的成功策略.
- 新型的替代剂,三甲基和4-甲基,有助于增强抑制剂的亲和力和选择性.
- 这些发现通过提供新的CatK抑制剂,推动了针对骨质疏松症的向疗法的开发.
更多相关视频
13:37Split-and-pool Synthesis and Characterization of Peptide Tertiary Amide Library
Published on: June 20, 2014
10:33Development of Inhibitors of Protein-protein Interactions through REPLACE: Application to the Design and Development Non-ATP Competitive CDK Inhibitors
Published on: October 26, 2015
相关概念视频
Targeted Cancer Therapies
There are several types of targeted therapies against specific...
Targets for Drug Action: Overview
Receptors are either membrane-spanning or intracellular proteins, which upon binding a ligand, get activated and transmit the signal downstream to elicit a response. Drugs bind receptors, either mimicking the action of endogenous ligands or blocking the receptor activity to bring about a modified response. Nearly 35% of approved drugs target the G...
Dose-Response Relationship: Selectivity and Specificity
Prodrugs
Prodrugs help overcome...
Treatment for Pulmonary Arterial Hypertension: Prostacyclin Receptor Agonists
These agonists bind to the IPR receptor situated on the plasma membrane of the pulmonary artery smooth muscle cells. This binding triggers a cascade of reactions known as the GS-AC-cAMP-PKA pathway. This pathway results in the relaxation of smooth muscle...
Pharmacogenomics: Identification of New Drug Targets
