检查血红素及其衍生物:通过协作实验分析和分子动力学模拟诱导乳腺癌细胞中的血红素加氧酶 1 活性和氧化应激。
Examining Hemin and its Derivatives: Induction of Heme-Oxygenase-1 Activity and Oxidative Stress in Breast Cancer Cells through Collaborative Experimental Analysis and Molecular Dynamics Simulations.
发表日期:2024 Aug 19
作者:
Amir M Alsharabasy, Panagiotis I Lagarias, Konstantinos D Papavasileiou, Antreas Afantitis, Pau Farràs, Sharon Glynn, Abhay Pandit
来源:
Cellular & Molecular Immunology
摘要:
氯化血红素可触发细胞内活性氧 (ROS) 积累并增强血红素加氧酶-1 (HOX-1) 活性,表明其作为抗癌剂的潜力,尽管精确控制其细胞内水平至关重要。该研究探讨了氯化血红素及其衍生物、氯化血红素-酪氨酸和氯化血红素-苯乙烯 (H-Styr) 缀合物对乳腺癌细胞迁移、HOX-1 表达、特异性凋亡标记物、线粒体功能和 ROS 生成的影响。使用分子对接和动力学模拟来了解 HOX-1、血红素和化合物之间的相互作用。血红素在诱导 HOX-1 表达、表现出促氧化作用和减少细胞迁移方面优于其衍生物。分子模拟表明,血红素主要通过范德华力和静电力与 HOX-1 有利结合,其次是其他化合物。然而,只有范德华力决定 H-Styr 络合。这些相互作用受金属卟啉特性的影响,为 HOX-1 调节和 ROS 生成提供了见解,有可能指导针对氧化应激的乳腺癌疗法的开发。
Hemin triggers intracellular reactive oxygen species (ROS) accumulation and enhances heme oxygenase-1 (HOX-1) activity, indicating its potential as an anticancer agent, though precise control of its intracellular levels is crucial. The study explores the impact of hemin and its derivatives, hemin-tyrosine, and hemin-styrene (H-Styr) conjugates on migration, HOX-1 expression, specific apoptosis markers, mitochondrial functions, and ROS generation in breast cancer cells. Molecular docking and dynamics simulations were used to understand the interactions among HOX-1, heme, and the compounds. Hemin outperforms its derivatives in inducing HOX-1 expression, exhibiting pro-oxidative effects and reducing cell migration. Molecular simulations show that heme binds favorably to HOX-1, followed by the other compounds, primarily through van der Waals and electrostatic forces. However, only van der Waals forces determine the H-Styr complexation. These interactions, influenced by metalloporphyrin characteristics, provide insights into HOX-1 regulation and ROS generation, potentially guiding the development of breast cancer therapies targeting oxidative stress.