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Related Concept Videos

T Cell Types and Functions01:24

T 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...
T Cell Activation and Clonal Selection01:22

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...
B Cell Activation and Differentiation01:24

B 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...
Special Features of Adaptive Immunity01:20

Special Features of Adaptive Immunity

The adaptive immune system, a crucial component of the overall immune response, offers a highly specialized defense against pathogens. It involves specific cell types and features, enabling it to combat infections effectively and efficiently.
The primary cell types involved in adaptive immunity are T cells and B cells. Each type has a unique role in defending the body against pathogens. T cells are responsible for cell-mediated immunity. They identify and eliminate infected cells directly,...
Immunocytochemistry and Immunohistochemistry01:22

Immunocytochemistry and Immunohistochemistry

Immunocytochemistry (ICC) and immunohistochemistry (IHC) are techniques that use antibodies to check for specific proteins or antigens in a sample. The technique was first published by Albert Coons in 1941 to detect the presence of pneumococcal antigen in tissue sections from mice infected with Pneumococcus. Immunocytochemistry helps localization of proteins or antigens in individual cells like blood cells, stem cells, etc., while immunohistochemistry does the same for tissue samples.
These...
Cell-mediated Immune Responses01:40

Cell-mediated Immune Responses

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Characterization of Thymus-dependent and Thymus-independent Immunoglobulin Isotype Responses in Mice Using Enzyme-linked Immunosorbent Assay
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PKC isotype functions in T lymphocytes.

G Baier1

  • 1Department for Medical Gentics & Molecular and Chemical Pharmacology, Medical University of Innsbruck, Schoepfstrasse 41, 6020 Innsbruck, Austria. Gottfried.Baier@uibk.ac.at

Ernst Schering Foundation Symposium Proceedings
|May 31, 2008
PubMed
Summary
This summary is machine-generated.

This review explores protein kinase C (PKC) isotypes in T cells, focusing on their roles in immune response regulation. It details the physiological and non-redundant functions of PKC alpha, beta, delta, epsilon, zeta, and theta in T cell activation and growth.

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Area of Science:

  • Immunology
  • Cell Biology
  • Biochemistry

Background:

  • Mature T cells recognize foreign antigens, initiating immune responses through complex activation and differentiation processes.
  • Understanding T lymphocyte physiology requires decoding biochemical signals from various receptors.
  • Protein serine/threonine kinases, particularly the AGC family, are crucial for regulating cell growth and T cell function.

Purpose of the Study:

  • To explore and identify gene products of AGC family kinases as key regulators of T cell growth.
  • To summarize the physiological and non-redundant functions of specific protein kinase C (PKC) isotypes in T cells.

Main Methods:

  • Literature review of existing research on PKC isotypes in T cells.
  • Analysis of the roles of PKC alpha, beta, delta, epsilon, zeta, and theta in T cell signaling and function.

Main Results:

  • PKC theta is a known regulator of T cell fate.
  • Several other PKC isotypes (alpha, beta, delta, epsilon, zeta) are highly expressed in T cells.
  • These isotypes play distinct and non-redundant roles in T cell physiology.

Conclusions:

  • PKC isotypes are critical mediators of T cell activation, differentiation, and immune response.
  • Understanding the specific functions of each PKC isotype is essential for comprehending T cell pathophysiology.
  • This review consolidates current knowledge on the diverse roles of PKC gene products in T cells.