自由脂肪酸受体2的酸化条形编码是以特定组织的方式生成的
Natasja Barki1, Laura Jenkins1, Sara Marsango1
1Centre for Translational Pharmacology, School of Molecular Biosciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom.
eLife
|December 12, 2023
概括
自由脂肪酸受体2 (FFAR2) 酸化模式因组织类型而异,作为受体激活的"条形码". 这种特定于组织的信号解释了FFAR2如何产生各种功能结果.
科学领域:
- 细胞生物学 细胞生物学
- 生物化学 生化学
- 药理学 药理学是指药理学的学科.
背景情况:
- 自由脂肪酸受体2 (FFAR2) 被短链脂肪酸激活,在脂肪细胞,免疫细胞和肠内分泌细胞中发现.
- 了解FFAR2的激活和信号传递对于其治疗潜力至关重要.
研究的目的:
- 研究FFAR2在不同细胞类型和组织中的激活和酸化概况.
- 探索FFAR2信号的"酸化条形编码"的概念.
主要方法:
- 使用了野生类型的人类FFAR2和专用药物 (DREADD) 变异单独激活的设计受体.
- 在Ser296/Ser297和Thr306/Thr310处检测FFAR2酸化的位特异性抗菌剂.
- 在异质细胞系和转基因小鼠组织 (白色脂肪组织,皮耶斑块,结肠) 中分析了FFAR2酸化.
主要成果:
- 在激素激剂激活时,FFAR2酸化在Ser296/Ser297在白色脂肪组织中得到增强.
- 在皮耶补丁免疫细胞中,Thr306/Thr310酸化是严格依赖激素的.
- 肠内分泌细胞在两个部位显示酸化不良.
- 使用相同的激动剂证明了特定组织的FFAR2酸化模式.
结论:
- 在不同的组织中,FFAR2表现出不同的酸化模式,作为其激活的"条形码".
- 这种组织特异性酸化可能解释了FFAR2如何引起各种功能结果.
- FFAR2位特异性抗菌剂是用于受体激活和定位的有价值的生物标志物.
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