ヘルミント寄生虫が移植時に免疫的耐性を獲得する役割
Chris Johnston1, Henry McSorley1, Danielle Smyth1
1University of Edinburgh, Edinburgh, UK.
Lancet (London, England)
|August 28, 2015
まとめ
ヘルミント寄生虫は免疫耐性を促進し,アロ移植を受けたマウスのT細胞およびPD1発現を著しく増加させます. これは移植の拒絶を防ぐ 新しい治療法を示唆しています
科学分野:
- 免疫学
- 寄生虫学
- 移植科学
背景:
- ヘルミントは 世界人口の25%以上を感染させ ホストの免疫反応を調節します
- この免疫調節は有害なアレルギー反応や自己免疫反応を抑制します.
- この研究では,ヘルミントの感染がアロ移植の免疫に与える影響を調査した.
研究 の 目的:
- ヘルミントの感染が 移植に対する免疫反応を 低下させるという仮説を検証するためです
- 移植免疫を調節するヘルミント産物の可能性を調査する.
主な方法:
- C57BL/6マウスは,ヘリグモソモイドスポリギルス分泌物による連続注入を受けた.
- マウスは,BALB/cのドナーから完全にアロゲニックな皮膚移植を受けた.
- 排水リンパ節からのリンパ球はフローサイトメトリーで分析された.
主要な成果:
- 治療されたマウスでは,CD4+CD25+Foxp3+調節性T細胞の有意な増加 (41. 7%) が観察されました.
- 調節性受容体PD1の平均発現は,エフェクタ CD4 T細胞で62. 2%増加した.
- これらの発見は,寄生虫製品が 免疫制御メカニズムを誘発することを示している.
結論:
- ヘルミント系産物は,異種移植時に免疫制御機構を効果的に誘発する.
- これらのメカニズムを理解することで 移植耐性を高める新しい治療戦略が 可能になります
- この研究は,アロインプラントの拒絶を防ぐための新しい治療法を開発する道を開きます.
関連する概念動画
Cell-mediated Immune Responses
86.5K
Overview
86.5K
Tissue Transplantation
1.2K
Tissue transplantation is a significant medical procedure involving the transfer of cells, tissues, or organs from a donor to a recipient, with the primary aim of restoring lost functions. This procedure is crucial in treating a broad spectrum of diseases, including kidney diseases, liver failure, heart disease, and certain types of cancers.
The Biology of Tissue Transplantation
The biology of tissue transplantation hinges on the Major Histocompatibility Complex (MHC) molecules. These molecules...
The Biology of Tissue Transplantation
The biology of tissue transplantation hinges on the Major Histocompatibility Complex (MHC) molecules. These molecules...
1.2K
Special Features of Adaptive Immunity
4.5K
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,...
4.5K
Bone Marrow Sampling and Transplants
2.5K
Bone marrow transplant is a potential cure for several diseases, including cancer and specific genetic disorders. Notably, this procedure is applicable for patients suffering from aplastic anemia, certain types of leukemia, severe combined immunodeficiency disease (SCID), Hodgkin's disease, non-Hodgkin's lymphoma, multiple myeloma, thalassemia, sickle-cell disease, and certain cancers.
The transplant begins with high doses of chemotherapy and radiation treatment, which aim to destroy...
The transplant begins with high doses of chemotherapy and radiation treatment, which aim to destroy...
2.5K


