The role of alpha2delta subunits in calcium channel function under physiological and pathological conditions

生理和病理条件下α2δ亚基在钙通道功能中的作用

• 批准号: G0700368/1
• 负责人: Annette Dolphin
• 金额: $ 132.85万
• 依托单位: University College London
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2007
• 资助国家: 英国
• 起止时间: 2007 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=G0700368%2F1
• 关键词: role; alpha2delta; subunits; calcium; channel

We are trying to understand the mechanism of action of a class of drugs that are used in the treatment of chronic pain.The drugs, gabapentin, and its newer relative pregabalin, are used to alleviate various forms of chronic pain, including post-herpetic neuralgia and diabetic neuropathy, although they were originally developed for the treatment of certain types of epilepsy, for which they are also effective. Recent research has shown that these drugs have their effect by binding to a protein that makes up part of a calcium channel called the alpha2delta subunit. These calcium channels are present in all brain cells, and are essential for communication between them. In several animal models of chronic pain, the levels of alpha2delta subunits are found to increase in the damaged nerve cells.In this study we now hope to understand, at the molecular level, how these alpha2delta subunits work, and how the binding of gabapentin to these proteins interferes with their function. To do this we will mainly use cells in tissue culture, but also where necessary, rodent models of disease.

我们正试图了解一类用于治疗慢性疼痛的药物的作用机制。这两种药物加巴喷丁及其较新的同类药物普瑞巴林（pregabalin）被用于缓解各种形式的慢性疼痛，包括疱疹后神经痛和糖尿病性神经病变，尽管它们最初是为治疗某些类型的癫痫而开发的，它们对癫痫也有效。最近的研究表明，这些药物的作用是通过与一种蛋白质结合而起作用的，这种蛋白质构成了钙通道的一部分，称为α 2 δ亚基。这些钙离子通道存在于所有脑细胞中，对细胞间的交流至关重要。在一些慢性疼痛的动物模型中，在受损的神经细胞中发现α 2 δ亚单位的水平增加。在这项研究中，我们现在希望在分子水平上了解这些α 2 δ亚基是如何工作的，以及加巴喷丁与这些蛋白质的结合是如何干扰它们的功能的。为了做到这一点，我们将主要使用组织培养中的细胞，但必要时也会使用啮齿动物疾病模型。