Related Experiment Video
Updated: Jun 10, 2026
07:12
Mouse Naïve CD4+ T Cell Isolation and In vitro Differentiation into T Cell Subsets
Published on: April 16, 2015
Molecular and cellular basis of T cell lineage commitment
Rita Vicente1, Louise Swainson, Sophie Marty-Grès
1Institut de Génétique Moléculaire de Montpellier, CNRS UMR 5535/IFR 122, 34293 Montpellier Cedex 5, France.
Seminars in Immunology
|July 16, 2010
Summary
Hematopoietic progenitors seed the thymus for T cell development. The interaction of Notch1 and IL-7 signals is key, but differs between mice and humans, impacting T cell differentiation.
Area of Science:
- Immunology
- Developmental Biology
- Hematopoiesis
Background:
- T cell differentiation originates in the thymus, which initially lacks lymphocytes.
- Hematopoietic progenitors must colonize the thymic primordium for T cell development to begin.
Purpose of the Study:
- To review the characteristics of hematopoietic progenitors that colonize the thymus.
- To discuss their subsequent commitment and differentiation into T cells.
- To highlight differences in T cell development between mice and humans.
Main Methods:
- This is a review article, synthesizing existing research.
- Focuses on comparative analysis of murine and human thymopoiesis.
- Examines the roles of Notch1 and IL-7 signaling pathways.
Main Results:
- Identifies key characteristics of thymus-colonizing hematopoietic progenitors.
- Details the crucial interplay of Notch1 and IL-7 in T cell development.
- Highlights species-specific differences in thymopoiesis regulation.
Conclusions:
- Understanding progenitor entry and maintenance is vital for T cell development.
- Notch1 and IL-7 signaling requirements vary between murine and human thymopoiesis.
- Advances in understanding these mechanisms offer insights into immune cell development.
Related Concept Videos
01:21Lineage Commitment
Commitment is the process whereby stem cells:
01:22T Cell Activation and Clonal Selection
T cells are integral to our adaptive immune system, recognizing and effectively responding to foreign antigens. T cell activation and clonal selection are pivotal in orchestrating this immune response. This article elucidates these mechanisms, detailing the roles of cluster of differentiation (CD) markers, major histocompatibility complex (MHC) molecules, costimulatory signals, and the process of clonal selection.
Naive T cells that have not yet encountered an antigen express two primary CD...
Naive T cells that have not yet encountered an antigen express two primary CD...
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...
01:24T Cell Types and Functions
When T cells with CD4 markers are activated, they give rise to two types of effector cells: helper T cells and regulatory T cells. Meanwhile, T cells with CD8 markers differentiate into effector cytotoxic T cells. The differentiation of CD4 T cells into helper T cell subsets, such as Th1, Th2, and Th17 cells, is dependent on the antigen type, antigen-presenting cell, and regulatory cytokines.
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
01:24B Cell Activation and Differentiation
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...
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...