Related Experiment Video

Updated: May 28, 2026

Isolation of Double Negative αβ T Cells from the Kidney
06:56

Isolation of Double Negative αβ T Cells from the Kidney

Published on: May 16, 2014

Identification of a unique double-negative regulatory T-cell population

Byung O Lee1, Joyce E Jones, Cory J Peters

  • 1Vaccine Research Institute of San Diego, San Diego, CA 92121, USA. blee@vrisd.org

Immunology
|November 3, 2011
PubMed

Regulatory T (Treg) cells represent one of the main mechanisms of regulating self-reactive immune cells. Treg cells are thought to play a role in down-regulating immune responses to self or allogeneic antigens in the periphery. Although the function of Treg cells has been demonstrated in many experimental settings, the precise mechanisms and antigen specificity often remain unclear. In a hepatitis B e antigen-T-cell receptor (HBeAg-TCR) double transgenic mouse model, we observed a phenotypically unique (TCR+)  CD4- /CD8-  CD25(+/-)  GITR(high)  PD-1(high)  FoxP3-) HBeAg-specific population that demonstrates immune regulatory function. This HBeAg-specific double-negative regulatory cell population proliferates vigorously in vitro, in contrast to any other known regulatory population, in an interleukin-2-independent manner.

More Related Videos

Generation of Induced Regulatory T Cells from Primary Human Naïve and Memory T Cells14:23

Generation of Induced Regulatory T Cells from Primary Human Naïve and Memory T Cells

Published on: April 16, 2012

Examination of Thymic Positive and Negative Selection by Flow Cytometry14:29

Examination of Thymic Positive and Negative Selection by Flow Cytometry

Published on: October 8, 2012

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...