相关实验视频

Updated: Jul 9, 2025

In Vivo Augmentation of Gut-Homing Regulatory T Cell Induction

In Vivo Augmentation of Gut-Homing Regulatory T Cell Induction

Published on: January 22, 2020

改变调节性T细胞介导的自然杀手细胞抑制可能导致一般性白风

Prashant S Giri¹, Soaeb S Patel¹, Mitesh Dwivedi¹

¹C. G. Bhakta Institute of Biotechnology, Faculty of Science, Uka Tarsadia University, Bardoli, Surat 394 350, Gujarat, India.

Human immunology

|December 6, 2023

概括

调节性T细胞 (Tregs) 在一般性白风 (GV) 患者中显示自然杀手细胞 (NK) 的抑制减少. 这种受损的Treg功能可能导致GV中黑色素细胞损失增加,这表明新的治疗点.

科学领域:

免疫学免疫学免疫学
皮肤病学皮肤病学
自免疫性疾病自免疫性疾病

背景情况:

泛性白风 (GV) 涉及自身免疫性黑色素细胞的损失,导致皮肤脱色.
调节性T细胞 (Tregs) 对于免疫平衡至关重要,而自然杀手细胞 (NK) 则准病原体和瘤.
以前的研究表明白风中Treg和NK细胞频率发生变化,但GV中NK细胞的Treg抑制仍未得到充分研究.

研究的目的:

研究一般性白风 (GV) 患者体外Treg介导的NK细胞功能抑制.
为了比较NK细胞功能和Treg抑制能力在GV患者与健康对照.
分析疾病活动和患者年龄对GV.的Treg-NK细胞相互作用的影响.

主要方法:

使用BrdU细胞增殖试验评估Treg介导的NK细胞功能抑制.
利用K562和SK-Mel-28细胞系作为NK细胞活动的点.
该研究包括31名GV患者和30名健康对照.

主要成果:

在GV患者中,Treg介导的NK细胞功能抑制显著下降 (p=0.0289).
在GV患者中,NK细胞介导的K562和SK-Mel-28细胞的抑制增加 (p=0.0207,p=0.0419).
活跃白病患者的Treg抑制降低,NK细胞功能增强 (p=0.03,p=0.0436). 年轻的GV患者 (1-40岁) 与老年患者 (41-60岁) 相比,Treg抑制较少.

结论:

减少Treg介导的NK细胞抑制是一般性白风的关键特征.
这种免疫失调可能会导致GV中黑色素细胞的破坏增加.
准Treg和NK细胞功能为GV治疗提供了一个潜在的治疗策略.

关键词:

一般化的白风 (GV)K562 细胞,SK-Mel-28 细胞自然杀手细胞 (NK细胞)监管性T细胞 (Tregs) 的使用

更多相关视频

Adenoviral Transduction of Naive CD4 T Cells to Study Treg Differentiation

Adenoviral Transduction of Naive CD4 T Cells to Study Treg Differentiation

Published on: August 13, 2013

New Tools to Expand Regulatory T Cells from HIV-1-infected Individuals

New Tools to Expand Regulatory T Cells from HIV-1-infected Individuals

Published on: May 30, 2013

相关概念视频

T Cell Types and Functions

T Cell Types and Functions

When T cells with CD4 markers are activated, they give rise to two types of effector cells: helper T cells and regulatory T cells. Meanwhile, T cells with CD8 markers differentiate into effector cytotoxic T cells. The differentiation of CD4 T cells into helper T cell subsets, such as Th1, Th2, and Th17 cells, is dependent on the antigen type, antigen-presenting cell, and regulatory cytokines.
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...

Cell-mediated Immune Responses

Cell-mediated Immune Responses

Cytotoxic T Cells-mediated Immune Response

Cytotoxic T Cells-mediated Immune Response

Cytotoxic T cells are a vital component of the immune system. They have the remarkable ability to identify and target antigens on infected or abnormal cells. These antigens often originate from intracellular pathogens such as viruses or abnormal proteins cancer cells produce.
Immunological surveillance is the ability of immune cells to monitor and eliminate infected cells with intracellular pathogens, neoplastically transformed cells, and cells with non-self antigens. Cytotoxic T cells and NK...