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Updated: Aug 14, 2026
09:14
Static Adhesion Assay for the Study of Integrin Activation in T Lymphocytes
Published on: June 13, 2014
[Molecular pathways of T lymphocyte activation]
Presse Medicale (Paris, France : 1983)
|January 15, 2000
Summary
T cell activation requires two signals: antigen recognition and co-stimulation. Multiple pathways, involving molecules like CD28 and CD2, regulate T cell responses and functional states.
Area of Science:
- Immunology
- Cellular Biology
Context:
- T cell activation is crucial for adaptive immunity.
- Quiescent T cells require specific signals for activation, initiated by antigen presentation.
Purpose:
- To elucidate the molecular mechanisms and pathways governing T cell activation.
- To explore the role of co-stimulatory molecules in immune response regulation.
Summary:
- T cell activation necessitates two signals: antigen-specific (TCR) and co-stimulatory, provided by antigen-presenting cells (APCs).
- Key co-stimulatory pathways include CD28, CTLA-4, CD40/CD40L, CD11a/CD18-CD50, and the CD2 pathway, which contribute to T cell activation and adherence.
- These diverse molecular interactions dictate distinct T cell functional states based on the microenvironment.
Impact:
- Understanding these pathways is vital for developing immunotherapies and managing immune-related diseases.
- Highlights the complexity of immune regulation through cell surface molecule interactions.
- Provides insights into how T cell functional states are modulated by environmental cues.
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