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Isolation and Th17 Differentiation of Naïve CD4 T Lymphocytes
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淫乱和灵长类的免疫系统
C L Nunn1, J L Gittleman, J Antonovics
1Department of Biology, Gilmer Hall, University of Virginia, Charlottesville, VA 22904-4328, USA. charlie.nunn@virginia.edu
Science (New York, N.Y.)
|November 10, 2000
概括
灵长类的免疫系统进化与社会行为有关. 具有更多雌性交配伙伴的物种中较高的白细胞数量表明性传播疾病驱动免疫差异.
科学领域:
- 进化生物学是进化的生物学.
- 免疫学 免疫学 免疫学
- 灵长类动物生态学
背景情况:
- 影响免疫系统进化的行为和生态因素尚未得到充分探索.
- 了解这些因素对于解释免疫防御中的生物多样性至关重要.
研究的目的:
- 为了研究疾病风险因素和灵长类动物免疫系统进化之间的关系.
- 测试将群体规模,人口密度,病原体暴露和交配乱交与白细胞数量联系在一起的假设.
主要方法:
- 在灵长类物种中对白细胞计数进行了基因组学分析.
- 检查了免疫标记物和生态/行为变量之间的相关性.
主要成果:
- 灵长类动物中白细胞的数量显著更高,雌性交配的乱交率更高.
- 群体大小,人口密度和土壤传播病原体暴露与白细胞计数没有显著的相关性.
结论:
- 性选择和性传播疾病的风险是灵长类免疫系统进化的重要驱动因素.
- 这些发现突出了社会交配系统在塑造免疫防御中的作用.
相关概念视频
01:38What is the Immune System?
Overview
01:40Cell-mediated Immune Responses
Overview
01:36Humoral Immune Responses
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01:21Introduction to Innate and Adaptive Immunity
The human immune system is a complex defense mechanism that protects the body from harmful pathogens and foreign substances. It comprises two crucial components: innate and adaptive immunity.
Innate immunity is the body's natural, nonspecific defense system that acts quickly to protect against pathogens. It incorporates physical barriers like skin and mucous membranes and cellular elements such as phagocytes and natural killer cells. This part of our immune system provides an immediate,...
Innate immunity is the body's natural, nonspecific defense system that acts quickly to protect against pathogens. It incorporates physical barriers like skin and mucous membranes and cellular elements such as phagocytes and natural killer cells. This part of our immune system provides an immediate,...
01:20Special Features of Adaptive Immunity
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,...
01:23Cells of the Adaptive Immune Response
The T and B lymphocytes of the adaptive immune system develop from common lymphoid progenitor cells in the bone marrow. These progenitors give rise to precursors that eventually develop into both T and B lymphocytes. As these precursors mature, they gain the ability to detect and respond to foreign antigens in the body, a process known as immunocompetence. Additionally, these precursors acquire self-tolerance, a process that ensures they do not react to self-antigens. This intricate system...