在基设计和新的识别,以减轻hIAPP聚合在2型糖尿病的2型糖尿病
1School of Chemistry & Biochemistry, Thapar Institute of Engineering & Technology, Patiala, India.
Journal of biomolecular structure & dynamics
|September 11, 2023
概括
研究人员设计了新的五,HSSQN和HSSNQ,以抑制人类小岛粉样蛋白多 (hIAPP) 聚合,这是2型糖尿病的关键因素. 这些可以作为T2D的潜在治疗剂,通过防止有毒的hIAPP聚合物的形成.
科学领域:
- 生物化学和分子生物学
- 药物发现和开发 药物发现和开发
- 计算化学计算化学
背景情况:
- 异常错误折叠和人类小岛粉样多 (hIAPP) 的聚合是2型糖尿病 (T2D) 病原体的核心.
- 从hIAPP的amyloidogenic区域获得的短因其有利的特性而被探索为抑制剂.
- 之前的研究确定了hIAPP片段HSSNN18-22作为具有抗增殖活性的氨基原体.
研究的目的:
- 设计和计算选基于HSSNN18-22片段的五片的库.
- 评估这些五胺在抑制hIAPP聚合中的有效性.
- 为了确定潜在的T2D治疗开发的新型hIAPP聚合抑制剂.
主要方法:
- 基于 hIAPP 片段 HSSNN18-22.2. 的五胺库的设计.
- 综合计算选方法,包括分子力学Poisson-Boltzmann表面积 (MM-PBSA) 用于结合自由能量计算.
- 在结时对hIAPP单体的构造变化的分析,以评估聚合倾向.
主要成果:
- 与HSSNN相比,五类HSSQN和HSSNQ对hIAPP单体的结合亲和力显著更高.
- 结合亲和度计算为HSSQN的-21.25 ± 4.90 kcal/mol和HSSNQ的 -19.73 ± 3.10 kcal/mol.
- 纳入HSSQN和HSSNQ增加了hIAPP单体的非聚合倾向螺旋形状的采样,降低了聚合倾向.
结论:
- HSSQN和HSSNQ被确定为hIAPP聚合的强有力的抑制剂.
- 这些五代表了开发T2D病理学的多功能调节器的有希望的候选人.
- 进一步与金属合酸的结合可能会产生对T2D的增强治疗剂.
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