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首页> 外文期刊>Journal of Biomolecular Structure and Dynamics >Unravelling the interaction of glipizide with human serum albumin using various spectroscopic techniques and molecular dynamics studies
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Unravelling the interaction of glipizide with human serum albumin using various spectroscopic techniques and molecular dynamics studies

机译:使用各种光谱技术和分子动力学研究解开人血清白蛋白的粘嘧啶的相互作用

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Glipizide is known to stimulate insulin secretion by beta-cells of the pancreas. It is a second-generation sulfonylurea drug used in the management of type 2 diabetes. The shorter biological half-life makes it a suitable candidate to be designed as a controlled release formulation. Human serum albumin (HSA), a major plasma protein plays a crucial role in the transportation of drugs, hormones, fatty acids, and many other molecules and determines their physiological fate and biodistribution. In this study, the interaction of glipizide with HSA was investigated under physiological conditions using multi-spectroscopic techniques corroborated with molecular docking and dynamics approach. It was found that glipizide integrates to HSA with a binding constant in the order of 10(5) M-1. The mode of fluorescence quenching by glipizide is static in nature with one binding site. Glipizide preferentially interacts with sub-domain IIA of HSA and their complexion is thermodynamically favorable. This interaction results in the loss of alpha-helical content of HSA. The energy transfer efficiency from HSA to glipizide was found to be 26.72%. In silico molecular docking and simulation studies ratified in vitro findings and revealed that hydrogen bonds and hydrophobic interactions are accountable for glipizide-HSA complex formation. Communicated by Ramaswamy H. Sarma
机译:众所周知,格列吡嗪可刺激胰腺β细胞分泌胰岛素。它是用于治疗2型糖尿病的第二代磺酰脲类药物。较短的生物半衰期使其成为设计为控释制剂的合适候选。人血清白蛋白(HSA)是一种主要的血浆蛋白,在药物、激素、脂肪酸和许多其他分子的运输中起着至关重要的作用,并决定着它们的生理命运和生物分布。本研究采用分子对接和动力学方法证实的多光谱技术,在生理条件下研究了格列吡嗪与HSA的相互作用。研究发现,格列吡嗪与HSA的结合常数为10(5)M-1。格列吡嗪的荧光猝灭模式本质上是静态的,只有一个结合位点。格列吡嗪优先与HSA的亚结构域IIA相互作用,并且它们的肤色在热力学上是有利的。这种相互作用导致HSA的α螺旋含量减少。HSA向格列吡嗪的能量转移效率为26.72%。硅分子对接和模拟研究证实了体外研究结果,并揭示了氢键和疏水相互作用是格列吡嗪-HSA复合物形成的原因。由Ramaswamy H.Sarma传达

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