関連する実験動画
Updated: May 18, 2026

07:51
Isolation of Leukocytes from the Murine Tissues at the Maternal-Fetal Interface
Published on: May 21, 2015
妊娠は,胎児の抗原に対するアナーギーを維持する規制記憶を刻印します
Jared H Rowe1, James M Ertelt, Lijun Xin
1University of Minnesota School of Medicine, Department of Pediatrics, Minneapolis, Minnesota 55455, USA.
Nature
|October 2, 2012
まとめ
妊婦のFOXP3 (((+) 調節性T細胞 (Treg細胞) の妊娠中の拡張は,胎児の耐性にとって極めて重要です. 胎児特異のTreg細胞は,出生後も持続し,将来の妊娠のための耐性および免疫記憶を強化します.
科学分野:
- 免疫学 免疫学とは
- 生殖生物学 生殖生物学
背景:
- 妊娠が成功するためには,胎児に対する母親の免疫耐性が不可欠である.
- 母親のFOXP3(+) 調節性T細胞 (Treg細胞) の拡張は,この耐性を維持するために非常に重要です.
- トレグ細胞の膨張の障害は,妊娠合併症と関連しています.
研究 の 目的:
- 妊娠中の母親のTreg細胞の抗原特異性と細胞起源を定義する.
- 胎児特異性Treg細胞の持続性と機能を,出産後のおよび後の妊娠中に調査する.
主な方法:
- テトレーマーベースの濃縮を活用して,希少な内生性母性T細胞を特定し,隔離した.
- 妊娠中および妊娠後のFOXP3(+) CD4細胞群を分析した.
- 評価されたTreg細胞の増殖と機能は,第1次妊娠と第2次妊娠で評価された.
主要な成果:
- 妊娠は選択的に胎児特異性を持つ母性FOXP3 (((+) CD4細胞を拡張する.
- 胎児特異のTreg細胞は,出産後も持続し,耐性を維持し,次の妊娠では急速に再蓄積する.
- 二次妊娠のTreg拡張は,胎児特異細胞が保持されることに依存し,初次妊娠は,新たな誘導と増殖を伴う.
結論:
- 妊娠は,母親のFOXP3 (((+) CD4細胞をインプリントし,胎児の抗原への規制記憶を確立します.
- この調節記憶は,胎児の耐性および後の妊娠における免疫的課題に対する回復力を高めます.
- 発見は,妊娠結果を改善するための新しい戦略と,Treg細胞記憶の治療的応用を示唆しています.
関連する概念動画
Development 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...
Genomic Imprinting and Inheritance
Diploid organisms inherit genetic material through chromosomes from both parents. Copies of the same gene are known as alleles. In most cases, both alleles are simultaneously expressed and allow various cellular processes to function optimally. If one of the alleles is missing or mutated, the expression of the other allele can compensate; however, this is not true for all genes.
The expression of some genes depends on which parent passed the gene to the offspring, through a phenomenon known as...
The expression of some genes depends on which parent passed the gene to the offspring, through a phenomenon known as...
Immunological Memory
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 is...
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 is...
Cells 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...
Imprinting
Behavioral imprinting is observed in some newborn animals and occurs when they develop strong and specific attachments to another animal (usually a parent) following brief, early-life exposures. Offspring imprint onto parents within a brief period after birth or hatching; this time window is called the critical period. Once imprinting occurs, the bond established between the parents and their offspring is usually long-lasting.
Transcytosis of IgG
Transcytosis is the process in which molecules are internalized by endocytosis, transported across the cell, and released through exocytosis from the opposite end of the cell. Molecules such as insulin, immunoglobulins, and certain nutrients are transferred through the recycling endosomes by recycling and transcytosis.
IgG molecules from a mother undergo transcytosis starting around 13 weeks of gestation. The amount of IgG transferred and entering the fetal blood circulation increases with...
IgG molecules from a mother undergo transcytosis starting around 13 weeks of gestation. The amount of IgG transferred and entering the fetal blood circulation increases with...
