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T Cell Activation and Clonal Selection

T 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...

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Updated: Jun 12, 2026

The Use of Fluorescent Target Arrays for Assessment of T Cell Responses In vivo

The Use of Fluorescent Target Arrays for Assessment of T Cell Responses In vivo

Published on: June 19, 2014

Methods to measure T-cell responses.

Magdalena Plebanski¹, Maria Katsara, Kuo-Ching Sheng

¹Monash University, VIC 3181, Australia.

Expert Review of Vaccines

|June 4, 2010

Summary

This summary is machine-generated.

Developing effective vaccines for immunotherapy, especially for solid tumors and viral infections, depends on identifying target antigens and generating cytotoxic T-cell responses. This review covers methods for measuring T-cell activity in vitro post-vaccination.

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Published on: June 4, 2019

Area of Science:

Immunology
Vaccinology
Cancer Research

Background:

Effective immunotherapy, particularly for solid tumors and viral infections, necessitates robust T-cell responses.
Cytotoxic T cells are crucial for eliminating infected or cancerous cells.
CD4 T cells significantly contribute to the overall cellular immune response.

Purpose of the Study:

To review methods for assessing T-cell responses in vitro following vaccination.
To highlight the importance of specific T-cell subsets in vaccine efficacy.

Main Methods:

Discussion of in vitro assays for T-cell measurement.
Focus on techniques applicable after vaccination protocols.

Main Results:

T-cell measurement techniques are vital for vaccine development.
Understanding T-cell responses informs vaccine design.

Conclusions:

Successful vaccines require specific antigens and cytotoxic T-cell induction.
In vitro T-cell measurement methods are essential for evaluating vaccine effectiveness and guiding further research.