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Related Concept Videos

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...
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,...
Cells of the Adaptive Immune Response01:23

Cells 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...
Cell-mediated Immune Responses01:40

Cell-mediated Immune Responses

Overview
Cells of the Innate Immune Response01:28

Cells of the Innate Immune Response

The innate immune response is an immediate and non-specific response against pathogens, acting swiftly to prevent the spread of infections. The primary cells involved in this response are phagocytes and natural killer (NK) cells.
Phagocytes
Phagocytes police the peripheral tissues by removing cellular debris and responding to the invasion of foreign substances or pathogens. Many phagocytes attack and remove microorganisms even before lymphocytes detect them. The human body has two general...
Defense Against Bacterial Pathogens01:31

Defense Against Bacterial Pathogens

The human immune system is a complex network of cells, tissues, and organs that work together to defend the body against bacterial infections. It consists of various immune cells, each playing a specific role in the defense mechanism.
Phagocytes
Phagocytes are the frontline soldiers of the immune system. They include neutrophils and macrophages. Neutrophils are the most abundant type of white blood cell and are quickly mobilized to the site of infection. Macrophages are larger cells that patrol...

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Related Experiment Video

Updated: Jul 16, 2026

Isolation and Ex Vivo Culture of Vδ1+CD4+γδ T Cells, an Extrathymic αβT-cell Progenitor
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gammadelta T lymphocytes-selectable cells within the innate system?

Willi K Born1, Niyun Jin, M Kemal Aydintug

  • 1Department of Immunology at National Jewish Medical and Research Center, 1400 Jackson Street, Denver, Colorado 80206, USA. bornw@njc.org

Journal of Clinical Immunology
|March 3, 2007
PubMed
Summary

Gammadelta T cells, crucial for immune regulation and tissue repair, exhibit innate immune characteristics. Continuous interaction with myeloid cells highlights their integral role in the innate immune system.

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Area of Science:

  • Immunology
  • Cell Biology

Background:

  • Gammadelta T cells are functionally specialized lymphocyte subsets.
  • They are implicated in immune responses, pathogen/allergen defense, and tissue repair.

Purpose of the Study:

  • To elucidate the role of gammadelta T cells within the immune system.
  • To investigate the relationship between gammadelta T cells and myeloid cells.

Main Methods:

  • Analysis of gammadelta T cell receptor (TCR) structure.
  • Peripheral selection of gammadelta T cells.
  • In vitro co-culture experiments with myeloid cells.
  • Histological studies.

Main Results:

  • Gammadelta TCRs share structural similarities with adaptive receptors.
  • Gammadelta T cell specificity may target self-determinants.
  • Gammadelta T cell responses display innate characteristics.
  • Continuous cross-talk observed between gammadelta T cells and myeloid cells.

Conclusions:

  • Gammadelta T cells possess characteristics of the innate immune system.
  • Their interaction with myeloid cells suggests a functional role as an integral component of innate immunity.