介质素10控制耐受性,病原体消除和鸟类免疫病理之间的平衡
Dominique Meunier1, Ricardo Corona-Torres1, Kay Boulton1
1The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Edinburgh, United Kingdom.
eLife
|October 16, 2025
概括
研究人员修改了IL10基因,以研究鸟类粘膜免疫力. 缺乏IL10的显示出肠道微生物组的改变和病原体清除的改善,但更严重的病变,突出IL10
科学领域:
- 鸟类免疫学 鸟类免疫学
- 胃肠粘膜免疫 胃肠粘膜免疫
- 细胞因子的功能是细胞因子.
背景情况:
- 肠粘膜免疫需要平衡耐受性,病原体识别和炎症.
- 介质素-10 (IL10) 是一种关键的抗炎细胞因子,可以调节哺乳动物中的这些过程.
- IL10在鸟类肠道免疫中的作用以前尚不清楚.
研究的目的:
- 为了研究IL10在肠粘膜免疫中的功能.
- 为了产生和表征具有改变IL10表达的.
- 评估IL10缺乏对肠道微生物群和宿主对病原体反应的影响.
主要方法:
- IL10位点的生殖线修改,以创建淘汰模式.
- 在体外分析巨细胞对脂多糖的反应.
- 使用沙门氏菌Typhimurium,Campylobacter jejuni和Eimeria tenella进行实验的挑战模型.
- 对白内障微生物组合,基因转录和炎症细胞透的分析.
主要成果:
- 缺少IL10会改变白内障微生物组的组成,但不会引起自发性结肠炎.
- 缺乏IL10的显示出沙门氏菌和野菌的清除能力提高.
- 在IL10缺乏的中感染Eimeria tenella导致清除速度更快,但病变更严重,体重增加减少.
- 异合体IL10淘汰赛或增强器突变的影响很小.
结论:
- IL10在调节鸟类肠粘膜免疫反应方面发挥着至关重要的作用.
- 缺少IL10可以增强病原体的清除,但可以加剧炎症损伤和疾病的严重程度.
- 这些发现对制定针对禽类和禽类病原体的策略有影响.
相关概念视频
01:24T Cell Types and Functions
2.1K
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...
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
2.1K
01:20Special Features of Adaptive Immunity
2.9K
The adaptive immune system, a crucial component of the overall immune response, offers a highly specialized defense against pathogens. It involves specific cell types and features, enabling it to combat infections effectively and efficiently.
The primary cell types involved in adaptive immunity are T cells and B cells. Each type has a unique role in defending the body against pathogens. T cells are responsible for cell-mediated immunity. They identify and eliminate infected cells directly,...
The primary cell types involved in adaptive immunity are T cells and B cells. Each type has a unique role in defending the body against pathogens. T cells are responsible for cell-mediated immunity. They identify and eliminate infected cells directly,...
2.9K
01:28Inflammatory Response
15.9K
An inflammatory response is a localized, nonspecific immune reaction that occurs when a tissue is injured. It is characterized by redness, swelling, heat, and pain, which are commonly called the cardinal signs and symptoms of inflammation. Inflammation can sometimes result in a loss of function.
Inflammation can be triggered by various stimuli, such as impact, abrasion, chemical irritation, infections, and extreme hot or cold temperatures. These can damage cells and connective tissue fibers,...
Inflammation can be triggered by various stimuli, such as impact, abrasion, chemical irritation, infections, and extreme hot or cold temperatures. These can damage cells and connective tissue fibers,...
15.9K
01:29Immune Response Against Viral Pathogens
1.7K
The immune system's response to viral infections is a complex and coordinated process involving natural killer (NK) cells, T cell-mediated responses, and antibody-mediated responses.
NK Cells
NK cells are a crucial part of our innate immune system, acting as the first line of defense against viral infections. These cells can recognize and kill infected cells without prior exposure to the virus, effectively slowing down the spread of infection. Additionally, NK cells produce proinflammatory...
NK Cells
NK cells are a crucial part of our innate immune system, acting as the first line of defense against viral infections. These cells can recognize and kill infected cells without prior exposure to the virus, effectively slowing down the spread of infection. Additionally, NK cells produce proinflammatory...
1.7K
01:40Cell-mediated Immune Responses
83.4K
Overview
83.4K