自己抗原に対する反応は,組織に制御記憶を刻印する
Michael D Rosenblum1, Iris K Gratz, Jonathan S Paw
1Department of Dermatology, University of California San Francisco, San Francisco, California 94115, USA.
Nature
|November 29, 2011
まとめ
調節性T細胞 (T ((reg) 細胞) は,強力な抑制剤となり,臓器特異の自己免疫を解決する. これらの細胞は,細胞を授与する.
科学分野:
- 免疫学 免疫学とは
- 自己免疫とは,自己免疫である.
- T細胞の調節について
背景:
- 免疫ホメオスタシスは,T細胞の反応と組織抑制のバランスを取ることに依存しています.
- ホメオスタシスのための組織-免疫コミュニケーションのメカニズムは不明です.
- 繰り返し抗原にさらされると,自己免疫反応が弱まる可能性があります.
研究 の 目的:
- 組織が自己免疫を調節するメカニズムを解明する.
- 調節性T細胞 (T・レグ細胞) が組織内の自己抗原にどのように反応するかを理解する.
- 臓器特異的自己免疫性の解消におけるT細胞の役割を調査する.
主な方法:
- 自己抗原に対する反応として,研究されたT ((reg) 細胞の活性化,増殖,および分化.
- マウスモデルでの臓器特異的自己免疫の解消を調査した.
- 標的組織におけるT細胞の維持とプライミングを調査した.
主要な成果:
- 周辺組織における自己抗原発現は,T細胞を活性化し,有力な抑制剤へと分化させます.
- T細胞は,マウスにおける臓器特異的自己免疫の解消を媒介する.
- 活性化されたT (reg) 細胞は組織に維持され,将来の自己免疫反応のための"調節記憶"を与えます.
結論:
- T細胞は,再発した臓器特異的自己免疫を解決し,予防する上で重要な役割を果たします.
- T (reg) 細胞は組織内で"調節記憶"を確立し,免疫耐性を高めます.
- 発見は,自己免疫の組織調節に関するメカニズム的洞察を提供します.
関連する概念動画
Cell-mediated Immune Responses
64.7K
Overview
64.7K
Special Features of Adaptive Immunity
3.7K
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,...
3.7K
Cells of the Adaptive Immune Response
6.9K
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...
6.9K
Antigens Involved in Adaptive Immunity
1.7K
An antigen is any substance the immune system identifies as foreign and potentially harmful to the body, prompting an immune response. Antigens have two functional properties: immunogenicity and reactivity. Immunogenicity is the ability of an antigen to stimulate a specific immune response. At the same time, reactivity describes the antigen's ability to react with the cells and antibodies produced in response to it.
Complete Antigens
Complete antigens possess both immunogenicity and...
Complete Antigens
Complete antigens possess both immunogenicity and...
1.7K
B Cell Activation and Differentiation
14.4K
The adaptive immune response, a sophisticated defense mechanism, relies on the activation and differentiation of B lymphocytes, or B cells. These processes enable our bodies to mount a tailored response against specific pathogens such as bacteria, free virus particles, toxins, and parasites.
When naive B cells encounter a specific antigen that can bind to the B cell receptor (BCR) on their surface, they undergo sensitization to respond to the antigen's presence. Sensitization begins with...
When naive B cells encounter a specific antigen that can bind to the B cell receptor (BCR) on their surface, they undergo sensitization to respond to the antigen's presence. Sensitization begins with...
14.4K
Immunological Memory
12.3K
Immunological memory, a pivotal pillar of the adaptive immune system, is responsible for the body's ability to remember and respond more swiftly and effectively to previously encountered pathogens. This remarkable feature is what makes vaccines so effective in preventing diseases.
What is Immunological Memory?
Immunological memory is an integral function of the immune system that allows it to recognize and react more rapidly and effectively to pathogens previously encountered. This feature...
What is Immunological Memory?
Immunological memory is an integral function of the immune system that allows it to recognize and react more rapidly and effectively to pathogens previously encountered. This feature...
12.3K


