相关实验视频

Updated: Jan 11, 2026

Covalent Fragment Screening Using the Quantitative Irreversible Tethering Assay

Covalent Fragment Screening Using the Quantitative Irreversible Tethering Assay

Published on: February 28, 2025

基于结构的识别一种非共价的硫素减少酶抑制剂,具有已证明的ADMET适用性

Giuseppe Lamanna^1,2, Giuseppa Augello³, Luisa Ronga⁴

¹Chemistry Department, University of Bari "Aldo Moro", Bari, Italy.

Journal of enzyme inhibition and medicinal chemistry

|November 10, 2025

概括

一种新型的非共价抑制剂C55,向铁素减少酶1 (TrxR1),在抗癌治疗中显示出有前途. 这种无金属有机分子有效地抑制了各种癌症细胞系的TrxR1,为新药开发铺平了道路.

科学领域:

生物化学生物化学
药理学药理学是指药理学的学科.
在瘤学瘤学.

背景情况:

硫素还原酶1 (TrxR1) 对氧化还原平衡至关重要,也是潜在的抗癌标.
开发有效和安全的TrxR1抑制剂对于癌症治疗至关重要.

研究的目的:

确定和描述一种新型的铁素减少酶1 (TrxR1) 的非共价抑制剂.
在各种癌症细胞系中评估已识别的抑制剂的抗癌潜力.

主要方法:

综合计算和实验方法,包括基于分子对接的虚拟选超过9万个化合物.
试验室试验评估TrxR1抑制和剂量依赖活性 (IC50测定).
在多个人类癌细胞系 (HepG2,Huh7,MCF-7,MDA-MB-231) 中证实了抑制剂的有效性.

主要成果:

从虚拟查中确定了一种有前途的非共价TrxR1抑制剂C55.
C55证明了TrxR1的剂量依赖性抑制,其IC50在微分子范围内.
在多个测试的癌细胞系中,C55表现出已确认的抗癌活性,并且具有有利的ADMET特性.

结论:

C55是一种无金属有机分子,可非共价抑制TrxR1,代表了显著的进步.
鉴定到的化合物为开发新的抗癌药物候选药物的热量优化提供了坚实的基础.
这一发现通过抑制TrxR1.1,为向癌症治疗开辟了新的途径.

关键词:

铁素还原酶 1 的作用.抗癌疗法是一种抗癌疗法.非共价抑制剂的非共价抑制剂虚拟选虚拟选虚拟选

更多相关视频

Application of I TASSER, trRosetta, UCSF Chimera, HADDOCK server, and HEX loria for De Novo and In Silico Design of Proteins

Application of I TASSER, trRosetta, UCSF Chimera, HADDOCK server, and HEX loria for De Novo and In Silico Design of Proteins

Published on: July 8, 2025

Author Spotlight: In Silico Creation and Impact of Carbonylated Amino Acids on Protein Structure and Function

Author Spotlight: In Silico Creation and Impact of Carbonylated Amino Acids on Protein Structure and Function

Published on: April 26, 2024

相关概念视频

Drug-Receptor Bonds

Drug-Receptor Bonds

Drug-receptor bonds are formed through various chemical forces when drugs interact with target cells. Covalent bonds, strong and irreversible, are exemplified by DNA-alkylating anticancer agents that inhibit cell division. However, such irreversible drug binding lacks selectivity and can modify the DNA of the surrounding healthy cells. Covalent binding often contributes to tissue toxicity, as seen with chloroform and paracetamol metabolites binding to the liver, causing hepatotoxicity.
In...

Enzyme Inhibition

Enzyme Inhibition

Inhibitors are molecules that reduce enzyme activity by binding to the enzyme. In a normally functioning cell, enzymes are regulated by a variety of inhibitors. Drugs and other toxins can also inhibit enzymes. Some inhibitors bind to the enzyme’s active site, while others inhibit enzymatic activity by binding to other sites on the protein structure.