Feedback regulation of cannabinoid receptor trafficking and signaling

项目摘要 药理学是研究药物如何产生预期的治疗效果的学科。就像药物一样， 它们被设计成靶向体内的特定受体，并改变细胞的功能。的 这些药物靶点，G蛋白偶联受体（GPCR）是最常见的，我的研究检查了 一旦药物与GPCR结合，它们是如何发挥作用的。GPCR通过启动G蛋白信号传导改变细胞反应。 这种信号被认为只发生在细胞表面，但新兴的研究表明，G蛋白 信号也发生在细胞内。因此，必须了解气相化学还原贩运如何进出 亚蜂窝位置影响它们的总体信令能力。大麻素受体-1（CB 1）是一种GPCR。 在大脑中大量表达。它具有多种神经生物学作用，是一种潜在的药物 目标是控制食欲、抑郁、疼痛和焦虑。然而，与CB 1结合的药物，也被称为 大麻素会产生各种意想不到的副作用。比如四氢大麻酚 大麻的主要成分是一种大麻素，与药物使用和物质滥用障碍密切相关。 我的研究特别集中在了解大麻素如何与CB 1结合，产生不同的 生物学成果。我的目标是通过研究大麻素如何 调节CB 1的亚细胞活性。了解细胞内GPCR信号的功能作用是一个新的 药理学和治疗研究的令人兴奋的领域，药物可以专门设计用于 受体的细胞内靶向。这可能对理解不同的 CB 1激活的结果，因为与GPCR相比，CB 1表现出显著的亚细胞定位， 是最常被研究的。然而，CB 1的亚细胞定位的重要性需要进一步研究。 调查拟议的研究项目将研究CB 1如何被大麻素差异激活 在大脑中，同时描绘CB 1激活的空间成分。获得的结果 该项目的完成将为开发CB 1作为可行的治疗靶点提供框架。

Project Summary Pharmacology is the study of how medicine works to produce a desired therapeutic outcome. As medicines are developed, they are designed to target specific receptors within the body and alter the way cells function. Of these drug targets, G-protein coupled receptors (GPCRs) are the most common, and my research examines how GPCRs function once drugs bind to them. GPCRs alter cellular responses by initiating G-protein signaling. This signaling was thought to occur only at the surface of cells, but emerging research has shown that G-protein signaling occurs within the cell as well. Therefore, it is important to understand how GPCR trafficking to and from subcellular locations impact their overall signaling capabilities. The cannabinoid receptor-1 (CB1) is a GPCR heavily expressed throughout the brain. It plays numerous neurobiological roles and has been a potential drug target in managing appetite, depression, pain and anxiety. However, drugs that bind to CB1, also known as cannabinoids, produce a wide variety of unintended side effects. For example, THC, the psychoactive component of cannabis, is a cannabinoid that is heavily associated with drug use and substance abuse disorders. My research is particularly focused on understanding how cannabinoids that bind to CB1 produce different biological outcomes. I aim to expand their value as promising therapeutic targets by studying how cannabinoids regulate CB1's subcellular activity. Understanding the functional roles of intracellular GPCR signaling is a new and exciting area of pharmacology and therapeutic research where drugs can be specifically designed for intracellular targeting of receptors. This could have significant implications for understanding the varying outcomes of CB1 activation, as CB1 exhibits significant subcellular localization when compared to GPCRs that are most commonly studied. However, the significance of CB1's subcellular localization requires further investigation. The proposed research project will investigate how CB1 is differentially activated by cannabinoids within the brain, while simultaneously delineating the spatial components of CB1 activation. The results gained from completion of this project will provide a framework for developing CB1 as a viable therapeutic target.