在人体细胞中,高亲和度的托吸收运输系统是人体细胞中的高亲和度托吸收运输系统
Keisuke Wakasugi1,2,3, Takumi Yokosawa1
1Komaba Organization for Educational Excellence, The University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo 153-8902, Japan.
由干扰素- (IFN-γ) 增强的L-托 (Trp) 吸收系统减少了细胞外的Trp,抑制了免疫力. 印度醇胺2,3-二氧化酶1 (IDO1) 和二二氧化酶2 (TDO2) 驱动这个过程.
科学领域:
- 生物化学 生物化学
- 免疫学 免疫学 免疫学
- 细胞生物学 细胞生物学
背景情况:
- L-三 (Trp) 运输系统对Trp具有很高的选择性和亲和力.
- 干扰素- (IFN-γ) 在人体细胞中调节上升的氨酸2,3-二氧化酶1 (IDO1) 和基-tRNA合成酶 (TrpRS).
- IDO1和TrpRS在高 afinity的Trp吸收中起着至关重要的作用,导致免疫抑制.
研究的目的:
- 审查最近关于TRP吸收系统的发现.
- 阐明TRP吸收背后的分子机制.
- 探索IDO1,TDO2和TrpRS在Trp传输和免疫调节中的作用.
主要方法:
- 文献综述最近关于Trp运输的研究.
- 对涉及IDO1,TDO2和TrpRS的分子机制的分析.
- 关于TRP缺乏和三法尼尔-AMP产生的研究.
主要成果:
- IFN-γ治疗增强了人体细胞中的Trp运输系统.
- IDO1和TrpRS对于高亲缘关系的Trp吸收至关重要.
- 二二氧化酶2 (TDO2) 的过度表达模仿了IDO1对TrpRS介导吸收的影响.
结论:
- IDO1和TDO2诱导Trp缺乏,影响TrpRS介导的Trp吸收.
- 提出了一种涉及Trp缺乏和三法尼尔-AMP产生的分子机制.
- 了解这个系统对于免疫调节和潜在的治疗策略至关重要.
更多相关视频
12:21Thermostabilization, Expression, Purification, and Crystallization of the Human Serotonin Transporter Bound to S-citalopram
Published on: November 27, 2016
09:31PCR Mutagenesis, Cloning, Expression, Fast Protein Purification Protocols and Crystallization of the Wild Type and Mutant Forms of Tryptophan Synthase
Published on: September 26, 2020
相关概念视频
Carrier-Mediated Transport
Active transport involves two types of membrane-spanning transporters: uptake and efflux. Uptake transporters are expressed in the small...
The Significance of Membrane Transport
Transporters facilitate either an active or passive movement of solutes. They can allow a single-molecule transport down its...
Membrane Transporters
Transporters are mainly composed of alpha-helices, built from bundles of ten or more helices traversing the plasma membrane. The solute-binding sites are located midway, where some of the helices are broken or distorted, making space for the binding site through...
ABC Transporters: Exporter
ABC Transporters: Importer
In bacteria, based on the number of transmembrane helices and the chemical nature of their substrates, the ABC importers can be divided into three types:
Facilitated Diffusion
In this process, substrates such as organic compounds and ions interact with a transporter on one side, triggering conformational changes in proteins that enable...
![Radiosynthesis of 1-2-[18F]Fluoroethyl-L-Tryptophan using a One-pot, Two-step Protocol](/_next/image?url=https%3A%2F%2Fcloudfront.jove.com%2FCDNSource%2Fteasers%2F63025.jpg&w=3840&q=50)