描述激活的μ-阿片类受体的近端蛋白质组
Benjamin J Polacco1,2,3, Braden T Lobingier4, Emily E Blythe1,3,5
1Quantitative Biosciences Institute (QBI), University of California, San Francisco, CA, USA.
Nature chemical biology
|March 26, 2024
概括
这项研究揭示了与激活的片受体 (μOR) 相互作用的新蛋白质,揭示了新的信号通路和潜在的药物标. 它强调了不同激动剂如何影响受体网络和细胞反应.
科学领域:
- 药理学 药理学是指药理学的学科.
- 分子生物学分子生物学
- 蛋白质组学是指蛋白质组学
背景情况:
- 类阿片受体 (μOR) 是治疗药物和滥用药物的关键标.
- 目前对μOR信号的理解仅限于已知的传感器,忽视了更广泛的蛋白质相互作用网络.
- 需要有系统的方法来探索完整的μOR信号复合体.
研究的目的:
- 使用蛋白质学和计算分析绘制激活的μOR的近端蛋白质组图.
- 识别功能性合作伙伴并了解激活受体的亚细胞定位和贩运.
- 调查不同类阿片类药物激动剂如何差异调节μOR近邻蛋白质组.
主要方法:
- 采用蛋白质组学方法来识别与激活的μOR.附近的蛋白质.
- 采用计算方法来分析蛋白质相互作用网络和亚细胞局部化.
- 研究了内分细胞和内分体排序在调解激素特异性蛋白质组差异中的作用.
- 验证了新发现的μOR网络组件的招聘和功能.
主要成果:
- 成功地绘制了激活的μOR的近端蛋白质组,揭示了以前未知的相互作用伙伴.
- 证明不同的阿片类抗原剂诱导不同的μOR近位蛋白质,受内细胞和内分类通路的影响.
- 确定了EYA4和KCTD12作为在G蛋白激活时招募的新型μOR网络组件.
- 这些新型成分可能构成G蛋白活性的缓冲系统,影响更广泛的GPCR信号传递.
结论:
- 这项研究提供了激活的μOR近位蛋白质组的全面地图,扩大了我们对其信号网络的理解.
- 清晰的激素驱动的信号通路涉及内细胞和内分类被阐明.
- 发现EYA4和KCTD12表明了调节G蛋白活性和GPCR信号的新机制.
- 这项工作为针对μOR和相关的GPCR通路的治疗开发开辟了新的途径.
更多相关视频
07:48Tracking Drug-induced Changes in Receptor Post-internalization Trafficking by Colocalizational Analysis
Published on: July 3, 2015
8.8K
16:02Demonstration of the Sequence Alignment to Predict Across Species Susceptibility Tool for Rapid Assessment of Protein Conservation
Published on: February 10, 2023
2.7K
相关概念视频
01:22Opioid Receptors: Overview
776
Opioid receptors, including the mu (μ, MOR), delta (δ, DOR), and kappa (κ, KOR) types, belong to the rhodopsin family of G protein-coupled receptors. These receptors are located throughout the central and peripheral nervous systems and in non-neuronal tissues such as macrophages and astrocytes. Opioid receptor ligands can be categorized into agonists or antagonists. Highly selective agonists include [d-Ala2, MePhe4, Gly(ol)5]-enkephalin or DAMGO for MOR, [D-Pen2,...
776
01:25Analgesia and Pain Management
614
Pain is critical to various clinical pathologies, provoking an urgent need for effective management. Pain, whether acute or chronic, is a complex neurochemical process. Its alleviation depends on the type, with nonopioid analgesics effective for mild to moderate pain, such as musculoskeletal or inflammatory pain, while neuropathic pain responds best to anticonvulsants, tricyclic antidepressants, or serotonin/norepinephrine reuptake inhibitors. For severe acute or chronic pain, opioids may be...
614
01:33Proteomics
7.3K
A proteome is the entire set of proteins that a cell type produces. We can study proteomes using the knowledge of genomes because genes code for mRNAs, and the mRNAs encode proteins. Although mRNA analysis is a step in the right direction, not all mRNAs are translated into proteins.
Proteomics is the study of proteomes' function. It involves the large-scale systematic study of the proteome to denote the protein complement expressed by a genome. Scientist Mark Wilkins coined the term...
Proteomics is the study of proteomes' function. It involves the large-scale systematic study of the proteome to denote the protein complement expressed by a genome. Scientist Mark Wilkins coined the term...
7.3K