来自Pithecellobium dulce的异形选择性AKT抑制剂的药基因组学和体鉴定,用于精确的癌症治疗
Gnanaprakash Jeyaraj1, Bing Yang2, Kuppusamy Sathishkumar3
1Saveetha Medical College and Hospital, Saveetha Institute of Medical and Technical Sciences, Chennai, Tamil Nadu, India.
Frontiers in pharmacology
|February 19, 2026
概括
这项研究确定了来自Pithecellobium dulce的天然化合物烯酸和鲁丁,这些化合物分别有选择性地准AKT1和AKT2激酶. 这些发现为开发针对PI3K-AKT-mTOR通路的新精密瘤治疗提供了基础.
科学领域:
- 生物化学和分子生物学
- 药物基因组学 药物基因组学
- 计算化学计算化学
背景情况:
- PI3K-AKT-mTOR通路在癌症中至关重要,AKT1和AKT2激酶有不同的作用.
- 在AKT1和AKT2的基因组变化影响癌症预后和治疗反应.
研究的目的:
- 整合药物基因组学和基于结构的建模,以找到选择性向AKT1或AKT2.2的天然化合物.
- 确定针对癌症向治疗的AKT信号轴中的异型特异性漏洞.
主要方法:
- 对AKT1/AKT2基因组变异和生存关联的TCGA和Kaplan-Meier Plotter数据集的分析.
- 基于结构的分子对接Pithecellobium dulce植物化学物质对抗AKT1和AKT2全位.
- 对药物动力学适应性和分子稳定性的ADME/DFT预测.
- 分子动力学模拟和MM-GBSA用于约束能量的估计.
- 对与AKT相关的非编码RNA调节相互作用的分析.
主要成果:
- AKT1的改变主要是激活突变,而AKT2的放大与生存率差相关.
- 奥莱阿诺酸和皮塞多化物I对AKT1表现出亲和力;鲁丁和纳林因对AKT2表现出亲和力.
- 烯酸和鲁丁的结合能量与已知的AKT抑制剂相当.
- 分子动力学证实了稳定的配体-蛋白质复合体,其中酸-AKT1和鲁丁-AKT2显示出有利的能量.
- 通过miR-149-5p和HOTAIR观察到转录后调节.
结论:
- 药物遗传学分析与分子模拟相结合,可以确定异构体特定的AKT漏洞.
- 皮特塞洛比乌姆甜甜的植物化学物质,烯酸和鲁丁,是有前途的选择性AKT1和AKT2调节剂.
- 这些发现支持用于精密瘤学的异形导向AKT向疗法的开发.
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