自己免疫疾患の遺伝的基礎を理解するための経路
1[1] Inflammatory Disease Research, The Broad Institute of MIT and Harvard, Harvard Medical School, Brigham and Women's Hospital, 1 Kendall Square, Building 300, Cambridge, Massachusetts 02139-1561, USA. rioux@broad.mit.edu
Nature
|June 3, 2005
まとめ
遺伝的要因は,免疫システムが身体を攻撃する自己免疫疾患に個人を誘発する. 遺伝的変異を特定することは,これらの状態を理解し,潜在的に治療するための鍵です.
科学分野:
- 免疫学 免疫学とは
- 遺伝学 遺伝学とは
- 人体健康 人体健康 人体健康
背景:
- 自己免疫疾患は,自己耐性の喪失から生じ,免疫系が誤って身体自身の組織を攻撃する.
- 単一の遺伝子変異が自己免疫を引き起こす可能性があるが,ほとんどのケースは複数の遺伝子変異体間の複雑な相互作用を伴う.
- 環境的トリガーは,遺伝的に感受性の高い個体において,自己免疫反応を誘発する可能性があります.
研究 の 目的:
- 自己免疫疾患の遺伝的基盤を探求する.
- 自我耐性のメカニズムとその自己免疫の失敗を理解する.
- 自己免疫疾患に関する洞察を深めるために,遺伝学研究の進歩を活用する.
主な方法:
- 自己免疫疾患に関連する遺伝子配列と変異体の分析.
- 貢献する配列の識別のための先進的な遺伝資源とツールを活用する.
- 健康な個体における遺伝因子の比較研究と,自己免疫疾患を持つ個体における遺伝因子の比較研究.
主要な成果:
- 自己免疫疾患のリスクの増加に関連した特定の遺伝子配列の特定.
- 複数の配列変異を含むほとんどの自己免疫疾患の多遺伝子性を理解する.
- 遺伝的遺伝的傾向と外部トリガーの相互作用を強調する.
結論:
- 遺伝的要因は,自己免疫疾患の発症において重要な役割を果たします.
- 遺伝子解析の進歩により,自己免疫性についての理解が向上しています.
- 将来の研究は,特定された遺伝子変異を基に,標的型治療を開発することができます.
関連する概念動画
01:40Cell-mediated Immune Responses
Overview
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...
01:26Antigens Involved in Adaptive Immunity
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 reactivity.
Complete Antigens
Complete antigens possess both immunogenicity and reactivity.
01:28Diversity of Antigen Receptors
Antigen receptors are essential components of the immune system crucial in defending the body against foreign invaders. These receptors are present on the surface of B and T cells, enabling them to recognize antigens and mount an appropriate immune response.
Before encountering any antigen, lymphocytes express these receptors. On B cells, the antigen receptor is a membrane-bound antibody molecule called BCR; on T cells, it is a T cell receptor or TCR. B and T cell receptors are composed of two...
Before encountering any antigen, lymphocytes express these receptors. On B cells, the antigen receptor is a membrane-bound antibody molecule called BCR; on T cells, it is a T cell receptor or TCR. B and T cell receptors are composed of two...
01:27Cytotoxic 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...
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...
01:22Development of Immunocompetence
The initiation of cell-mediated immunity can be observed as early as the third month of fetal growth, with active antibody-mediated immunity following approximately one month later.
The initial cells that migrate from the fetal thymus settle within the skin and epithelial tissues lining the mouth, digestive tract, and in females, the uterus and vagina. These cells, including skin-based dendritic cells, serve as antigen-presenting cells, playing a key role in T cell activation.
Subsequent T...
The initial cells that migrate from the fetal thymus settle within the skin and epithelial tissues lining the mouth, digestive tract, and in females, the uterus and vagina. These cells, including skin-based dendritic cells, serve as antigen-presenting cells, playing a key role in T cell activation.
Subsequent T...