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Updated: Sep 22, 2026

Visualizing Antigen Specific CD4+ T Cells using MHC Class II Tetramers
Published on: March 5, 2009
[Strong and weak histocompatibility antigens and immune response]
G Wittmann1, W Mempel, M U Heim
1Abteilung Innere Medizin, Universitätsklinikum Rudolf Virchow, Freie Universität Berlin, BRD.
Insights
Red cell and HLA antigen patterns significantly influence immune responses. These findings reveal distinct clusters of lymphocyte reactivity linked to specific antigen profiles in healthy donors.
Area of Science:
- Immunogenetics
- Immunology
- Hematology
Context:
- Investigates the relationship between red blood cell antigens, Human Leukocyte Antigen (HLA) types, and immune system responses.
- Utilizes standard serological and cellular assays to analyze blood samples from 88 healthy individuals.
Purpose:
- To determine if specific patterns of red cell and HLA antigens correlate with distinct profiles of lymphocyte reactivity.
- To identify potential immunogenetic markers associated with variations in immune responsiveness.
Summary:
- Analyzed red cell and HLA-A, -B, -Cw, -Dr antigens in 88 healthy donors.
- Measured lymphocyte reactivity using 3H-thymidine uptake assays with various mitogens and antigens.
- Cluster analysis revealed three distinct lymphocyte reactivity clusters, with significant associations between specific red cell/HLA antigen patterns and immune response profiles.
Impact:
- Suggests that combinations of red cell and HLA antigens play a crucial role in shaping an individual's immunoreactivity.
- Provides insights into the immunogenetic basis of immune system variation.
- Highlights potential applications in understanding immune responses and donor-recipient matching.
Abstract:
In blood samples of 88 healthy donors various red cell, HLA-A, -B, -Cw and -Dr antigens were determined by standard methods. Lymphocyte reactivity was measured by 3H-thymidine uptake into DNA of lymphoblastic cells stimulated by 14 different mitogens and antigens. Cluster analysis confirmed by t test and F test defined 3 distinct clusters of lymphocyte reactivity. Cluster 1 in 70% [relative risk (r.r.) 109, p < 0.001] and cluster 3 in 92% (r.r. 33, p < 0.01) showed significantly different cumulations of 3 or more increased characteristic red cell and HLA antigens. Our data suggest that the patterns of both red cell and HLA antigens play a major role in defining immunoreactivity.
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