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Updated: Jan 7, 2026
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Immunopeptidomics: Isolation of Mouse and Human MHC Class I- and II-Associated Peptides for Mass Spectrometry Analysis
Published on: October 15, 2021
14.8K
Methods for Isolating and Analyzing the HLA Class I Immunopeptidome
Martha Nikopaschou1, Georgia Rouni2, Martina Samiotaki3
1Department of Chemistry, National and Kapodistrian University of Athens, Athens, Greece.
Methods in Molecular Biology (Clifton, N.J.)
|January 1, 2026
Summary
This study presents a simplified immunopeptidomics protocol for analyzing Human Leukocyte Antigen Class I (HLA-I) peptides. The accessible method and in-house antibody production empower researchers to study adaptive immunity and identify disease biomarkers.
Area of Science:
- Biochemistry
- Immunology
- Mass Spectrometry
Background:
- Immunopeptidomics characterizes the peptide repertoire presented by Human Leukocyte Antigens Class I (HLA-I), crucial for adaptive immunity.
- Understanding the immunopeptidome aids in deciphering antigen presentation and identifying biomarkers for diseases like cancer and infections.
Purpose of the Study:
- To outline a simplified, accessible immunopeptidomics protocol for HLA-I peptide repertoire characterization.
- To enable researchers with standard laboratory equipment to perform HLA-I immunopeptidomics.
- To provide guidance on in-house monoclonal antibody production for HLA-I immunopeptidomics.
Main Methods:
- Mass spectrometry-based immunopeptidomics.
- Protocol adapted from established workflows for accessibility.
- In-house production and purification of monoclonal antibodies for HLA-I targeting.
- Utilization of open-source software for data analysis.
Main Results:
- A simplified and accessible immunopeptidomics protocol is detailed.
- Instructions for in-house monoclonal antibody production are provided.
- Practical considerations and tips are included for researchers.
Conclusions:
- The presented protocol empowers researchers to apply immunopeptidomics using common laboratory resources.
- This work facilitates the study of antigen presentation and the discovery of diagnostic markers and therapeutic targets.
- Accessible immunopeptidomics can advance research in infectious diseases, cancer, and autoimmunity.
