• search
Neoantigen Specific T cells For Cancer Immunotherapy Neoantigen Specific T cells For Cancer Immunotherapy

Neoantigen specific T cells for cellular cancer immunotherapy

June 28, 2022

An effective anti-tumor immune response in human is marked by presence of T cells reactive against neoantigens. Neoantigens are HLA-bound unique peptides arise from tumor-specific somatic mutations. Neoantigens are highly immunogenic because they are not present in normal tissues and hence bypass central thymic tolerance. The success of immune checkpoint blockades such as PD-1 or CTLA-4 that has improved overall survival and patient outcome is due to enhanced T cell cytotoxicity against neoantigen expressing tumor cells. Recent advancement in sequencing technologies, mass spectrometry and machine learning algorithms has enabled systematic neoantigen discovery and reliably predicting neoantigen peptides binding to autologous HLA molecules. Neoantigen discovery has also led to very attractive and innovative personalized cancer therapeutics like adoptive T cell therapy and neoantigen vaccines. Some of the examples of autologous adoptive T cell therapies are neoantigen specific tumor infiltrating T lymphocytes (TIL), neoantigen specific transgenic TCR T cells and MHC independent synthetic chimeric antigen receptor (CAR) T cells.

Identification and isolation of neoantigen-specific T cells are inherently challenging due to the low avidity of T cell receptor (TCR) to MHC peptide complex and very low frequency of neoantigen specific T cells in peripheral lymphocytes. One of the most powerful tools for neoantigen specific T cell identification, isolation, enrichment, and further expansion is MHC tetramer. Each MHC tetramer complex is made up of four monomers of biotinylated MHC heavy chain folded with β2-microglobulin and synthetic peptide coupled with one molecule of streptavidin. The streptavidin in MHC tetramer is linked to a fluorochrome molecule of interest to allow direct staining of neoantigen specific T cells in flow cytometry applications. MHC tetramers can bind up to four TCRs simultaneously and creating a much stronger interaction to detect the rare population of neoantigen-specific T cells. Currently, we are witnessing a surge of large number of clinical trials evaluating personalized neoantigen vaccines and autologous neoantigen specific T cells for cancer immunotherapies. Preliminary data from these clinical trials is very promising and showing complete and durable response. So, is this the beginning of a paradigm shift in personalized cancer therapeutics?



  • Schumacher and Robert Schreiber. Neoantigens in cancer immunotherapy. Science 2015
  • Waldman A. D. et al. A guide to cancer immunotherapy: from T cell basic science to clinical practice. Nature Review Immunology 2020
  • He Q. et al. Targeting cancers through TCR-peptide/MHC interactions Journal of Hematology & Oncology 2019
  • Ott P. A. et al. An immunogenic personal neoantigen vaccine for patients with melanoma. Nature 2017
  • Cohen C. J. et al. Isolation of neoantigen-specific T cells from tumor and peripheral lymphocytes. J Clin Invest. 2015


  • Cancer
  • Immunotherapy
  • Large Molecule
  • New Biological Entity
  • T-cells

Social Share

Latest Posts

Business Continuity planning in CRO/CDMO

The importance of business continuity planning in CRDMO industry

November 16, 2023
Why meeting our team at CPHI Barcelona 2023?

Why meet us at CPHI Barcelona?

September 4, 2023
A Brief Introduction to Click chemistry and Bioorthogonal chemistry

A Brief Introduction to Click Chemistry and Bioorthogonal Chemistry

August 23, 2023
How AI can accelerate drug discovery

How AI can accelerate drug discovery

July 5, 2023
“Bathtub Chemistry” - Necessity and Aspects of Process Research

“Bathtub Chemistry” - Necessity and Aspects of Process Research

May 19, 2023
Advantages of PROTACs over traditional drugs

Advantages of PROTACs over traditional drugs

June 30, 2022

You are about to leave Aurigene Pharmaceutical Services and affiliates website. Aurigene Pharmaceutical Services assumes no responsibility for the information presented on the external website or any further links from such sites. These links are presented to you only as a convenience, and the inclusion of any link does not imply endorsement by Aurigene Pharmaceutical Services.

If you wish to continue to this external website, click Proceed.