对自然存在的抗癌剂在调节子通路蛋白质中的计算研究
Renu Pai1, Divijendranatha Reddy Sirigiri1, Rajyalakshmi Malempati1
1Department of Biotechnology, BMS College of Engineering, Bengaluru, Karnataka, India.
PloS one
|December 3, 2024
概括
新的天然化合物,利里奥登因和2',4-二基-3-甲基石墨,显示出作为子通路的抑制剂的前景,这在胚胎发育中至关重要,并与癌症有关.
科学领域:
- 生物化学 生化学
- 分子生物学分子生物学
- 药理学 药理学是指药理学的学科.
背景情况:
- 刺信号通路调节胚胎发育,但其在成熟组织中的异常激活与瘤发生有关.
- 目前的治疗策略在抑制驱动与相关癌症的关键蛋白质方面缺乏有效性.
- 迫切需要新的抑制剂来阻止这个关键途径的异常激活.
研究的目的:
- 为了识别可以抑制刺信号通路的自然化合物.
- 评估十七种天然存在的抗瘤源化合物的结合 afinities 对关键的刺路径蛋白质.
- 通过分子动力学模拟来评估潜在抑制剂的稳定性和相互作用.
主要方法:
- 使用AutoDock v4.2.6.6对十七种天然化合物的四种关键调节蛋白的子路径进行了in silico选.
- 分子对接分析以确定结合亲缘关系.
- 使用Gromacs v5.1.4进行100纳秒分子动态模拟,以分析蛋白质 - 连接体复合物的稳定性.
主要成果:
- 利里奥代宁与Smoothened (-7.61 kcal/mol),Patched-I (-8.14 kcal/mol) 和Gli-II (-6.15 kcal/mol) 显示出强烈的结合亲和力.
- 2",4-二基-3-甲基石灰对Sonic Hedgehog蛋白质 (-7.04 kcal/mol) 的结合亲和度最高.
- 分子动力学模拟证实了利里奥登因和2,4-二基-3-甲基石与它们各自的标蛋白之间的稳定相互作用.
结论:
- 利里奥代宁和2",4-二基-3-甲基石灰被确定为对刺路径的潜在新型抑制剂.
- 这些化合物需要通过体外和体内研究进行进一步的研究,以开发治疗方法.
- 该研究强调了天然产品在向瘤信号通路方面的潜力.
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