Interaction between cell penetrating peptide S4(13) and plasma membranes by molecular dynamics simulations

Gao Jin, Cui Wei
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引用次数: 0

Abstract

细胞穿膜肽S4(13)衍生物可以作为药物载体携带核酸分子进入细胞从而发挥治疗作用,在抗肿瘤靶向治疗等领域有潜在的应用价值,但其穿膜机理目前尚不明确。采用分子模拟方法,分别搭建单个及多个S4(13)在不同的质膜和水溶液中的模型,结合常规分子动力学模拟和增强采样模拟,通过轨迹分析探究单个及多个S4(13)与不同质膜的作用方式。研究结果表明:单个S4(13)分子与细菌质膜的相互作用比与真核生物质膜的更强,而在水溶液和真核生物质膜模型中,多个S4(13)分子则倾向于聚集形成四聚体,表明其穿膜机理与四聚体胶束结构有关。本项工作从分子层面上探讨了细胞穿膜肽S4(13)的穿膜机理,为S4(13)衍生物作为药物载体的应用提供了理论依据。
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细胞穿透肽S4(13)与质膜相互作用的分子动力学模拟
细胞穿膜肽S4(13)衍生物可以作为药物载体携带核酸分子进入细胞从而发挥治疗作用,在抗肿瘤靶向治疗等领域有潜在的应用价值,但其穿膜机理目前尚不明确。采用分子模拟方法,分别搭建单个及多个S4(13)在不同的质膜和水溶液中的模型,结合常规分子动力学模拟和增强采样模拟,通过轨迹分析探究单个及多个S4(13)与不同质膜的作用方式。研究结果表明:单个S4(13)分子与细菌质膜的相互作用比与真核生物质膜的更强,而在水溶液和真核生物质膜模型中,多个S4(13)分子则倾向于聚集形成四聚体,表明其穿膜机理与四聚体胶束结构有关。本项工作从分子层面上探讨了细胞穿膜肽S4(13)的穿膜机理,为S4(13)衍生物作为药物载体的应用提供了理论依据。
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期刊介绍: Journal of University of Chinese Academy of Sciences (bimonthly) is an academic journal under the supervision of the Chinese Academy of Sciences and sponsored by the University of Chinese Academy of Sciences. Founded in 1984, the journal mainly publishes excellent papers in the fields of basic and technical sciences from researchers, teachers and postgraduates of the institutes of the Chinese Academy of Sciences, the University of the Chinese Academy of Sciences, and other institutions of higher learning and research. The contents of the journal include high-level review articles (special edition), innovative research articles and brief reports on basic and applied research in the fields of mathematics, science, chemistry, astronomy, geography, biology, environment, materials, electronics and computers, etc. The journal welcomes papers in Chinese or English. The journal welcomes submissions using Chinese or English manuscripts. Accepted: Chinese Science and Technology Comprehensive Core Journals (Peking University) Chinese Science and Technology Core Journals (Ministry of Science and Technology) Chinese Science Citation Database Core Journals (Chinese Academy of Sciences)
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