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Related Experiment Video

Updated: Jul 16, 2026

Human In Vitro Suppression as Screening Tool for the Recognition of an Early State of Immune Imbalance

Human In Vitro Suppression as Screening Tool for the Recognition of an Early State of Immune Imbalance

Published on: July 22, 2011

Control of T cell function by positive and negative regulators.

Andrew L Singer¹, Gary A Koretzky

¹The Abramson Family Cancer Research Institute, Department of Laboratory Medicine and Pathology, University of Pennsylvania, Philadelphia, PA 19104, USA. koretzky@mail.med.upenn.edu

Science (New York, N.Y.)

|June 1, 2002

Summary

T cell receptor signaling controls T cell responses. Understanding these pathways is key to developing therapies for immune disorders, infections, and cancer.

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Last Updated: Jul 16, 2026

Human In Vitro Suppression as Screening Tool for the Recognition of an Early State of Immune Imbalance

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Published on: July 22, 2011

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In Vitro Functional Analysis of Regulatory T cells: Focus On Proliferation And Differentiation

In Vitro Functional Analysis of Regulatory T cells: Focus On Proliferation And Differentiation

Published on: June 9, 2026

Area of Science:

Immunology
Molecular Biology
Cell Signaling

Background:

T cells are crucial for adaptive immunity.
T cell receptor (TCR) engagement initiates signaling cascades.
Signal magnitude and duration dictate T cell fate (activation, inactivation, elimination).

Purpose of the Study:

To elucidate the molecular mechanisms regulating T cell signal transduction.
To highlight key components of the T cell activation pathway.
To provide a foundation for therapeutic development in immune-related diseases.

Main Methods:

Analysis of T cell signal transduction pathways.
Identification of molecular scaffolds involved in signaling complex formation.
Review of regulatory mechanisms (positive and negative feedback loops).

Main Results:

TCR signaling is tightly regulated by positive and negative feedback.
Molecular scaffolds play a critical role in assembling signaling complexes.
The STKE Connections Maps visually represent T cell activation components.

Conclusions:

Understanding T cell signaling regulation is vital for immune system modulation.
This knowledge can inform the development of novel therapeutics.
Targeting T cell responsiveness may treat infections, cancer, and autoimmune diseases.