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A High Throughput MHC II Binding Assay for Quantitative Analysis of Peptide Epitopes

A High Throughput MHC II Binding Assay for Quantitative Analysis of Peptide Epitopes

Published on: March 25, 2014

Novel cellular microarray assay for profiling T-cell peptide antigen specificities.

C Yue¹, M Oelke, M E Paulaitis

¹Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, OH 43210, USA.

Journal of Proteome Research

|September 15, 2010

Summary

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This study introduces a novel cellular microarray assay for precisely quantifying antigen-specific T-cell responses. The assay enhances sensitivity and allows for high-throughput analysis of T-cell populations.

Area of Science:

Immunology
Assay Development
T-cell Biology

Background:

Accurate quantification of antigen-specific T-cells is crucial for understanding immune responses.
Existing methods often face limitations in sensitivity and throughput for detecting low-frequency T-cell populations.
Optimizing the avidity of peptide-HLA binding is key for robust T-cell recognition.

Purpose of the Study:

To develop a novel cellular microarray assay for quantitative assessment of antigen-specific T-cell frequencies.
To enhance the sensitivity and throughput of T-cell response analysis.
To enable the study of T-cell response stability and dynamics in heterogeneous populations.

Main Methods:

Utilized soluble peptide-loaded HLA A2-Ig dimer complexes to optimize peptide-HLA binding avidity.

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Peptide:MHC Tetramer-based Enrichment of Epitope-specific T cells

Peptide:MHC Tetramer-based Enrichment of Epitope-specific T cells

Published on: October 22, 2012

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Last Updated: Jun 8, 2026

A High Throughput MHC II Binding Assay for Quantitative Analysis of Peptide Epitopes

A High Throughput MHC II Binding Assay for Quantitative Analysis of Peptide Epitopes

Published on: March 25, 2014

Peptide:MHC Tetramer-based Enrichment of Epitope-specific T cells

Peptide:MHC Tetramer-based Enrichment of Epitope-specific T cells

Published on: October 22, 2012

Separated T-cell receptor recognition from antigen-specific cell capture on the microarray.

Validated the assay using CD8 T-cell populations with known antigen-specific frequencies and peripheral blood T cells.

Main Results:

The novel assay enables quantitative determination of antigen-specific T-cell frequencies without enumerating captured cells.
Demonstrated high specificity, sensitivity to low antigen-specific frequencies, and accurate quantitation of antigenic T-cell specificities.
Established the assay's utility for high-throughput, broad-based assessment of low-frequency antigen specificities.

Conclusions:

The developed cellular microarray assay offers significant advantages for high-throughput, quantitative analysis of T-cell responses.
The assay facilitates the determination of stability and flux of antigen-specific T-cell responses within and across populations.
This platform provides a powerful tool for immunological research and clinical applications requiring sensitive T-cell frequency measurements.