Cited by 240Immunotherapy and Immune ResponsesCAR-T cell therapy researchCancer Immunotherapy and Biomarkers

Identification of T-cell Receptors Targeting KRAS-Mutated Human Tumors

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Wang, Qiong J., Yu, Zhiya, Griffith, Kayla, Hanada, Ken-ichi, Restifo, Nicholas P., Yang, James C.·2016·Cancer Immunology Research

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Abstract

KRAS is one of the most frequently mutated proto-oncogenes in human cancers. The dominant oncogenic mutations of KRAS are single amino acid substitutions at codon 12, in particular G12D and G12V present in 60% to 70% of pancreatic cancers and 20% to 30% of colorectal cancers. The consistency, frequency, and tumor specificity of these “neoantigens” make them attractive therapeutic targets. Recent data associate T cells that target mutated antigens with clinical immunotherapy responses in patients with metastatic melanoma, lung cancer, or cholangiocarcinoma. Using HLA-peptide prediction algorithms, we noted that HLA-A*11:01 could potentially present mutated KRAS variants. By immunizing HLA-A*11:01 transgenic mice, we generated murine T cells and subsequently isolated T-cell receptors (TCR) highly reactive to the mutated KRAS variants G12V and G12D. Peripheral blood lymphocytes (PBL) transduced with these TCRs could recognize multiple HLA-A*11:01+ tumor lines bearing the appropriate KRAS mutations. In a xenograft model of large established tumor, adoptive transfer of these transduced PBLs reactive with an HLA-A*11:01, G12D-mutated pancreatic cell line could significantly reduce its growth in NSG mice (P = 0.002). The success of adoptive transfer of TCR-engineered T cells against melanoma and other cancers supports clinical trials with these T cells that recognize mutated KRAS in patients with a variety of common cancer types. Cancer Immunol Res; 4(3); 204–14. ©2015 AACR.

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Crossref · 10.1158/2326-6066.cir-15-0188

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  • Tumors with mutant KRAS can express neoantigen fragments containing the oncogenic driver mutation on the MHC.

    “Tumors with mutant KRAS can express neoantigen fragments containing the oncogenic driver mutation on the major histocompatibility complex [88,89].”
  • The transduced peripheral blood lymphocytes recognized multiple HLA-A*11:01(+) tumor lines bearing the appropriate KRAS mutations.

    “The transduced PBLs could recognize multiple HLA-A*11:01(+) tumor lines bearing the appropriate KRAS mutations.”
  • Adoptive transfer of the transduced peripheral blood lymphocytes resulted in a significant reduction in tumor growth in a xenograft model by detecting human KRAS-mutant pancreatic cells.

    “Adoptive transfer of these transduced PBLs resulted in a significant reduction in tumor growth in a xenograft model by detecting human KRAS-mutant pancreatic cells.606”
  • Wang and co-workers isolated highly reactive T-cell receptors to mutated KRAS variants G12V and G12D from murine T cells in immunized HLA-A*11:01 transgenic mice and transduced them into peripheral blood lymphocytes.

    “In 2016, Wang and co-workers isolated highly reactive T-cell receptors (TCR) to mutated KRAS variants G12V and G12D from murine T cells in immunized HLA-A*11:01 (258) transgenic mice, which were then transduced into peripheral blood lymphocytes (PBLs).”
  • TCRs targeting KRASG12D and KRASG12V were produced in HLAA11:01 transgenic mice, and peripheral blood lymphocytes were generated retrovirally.

    “Building on these results, TCRs targeting KRASG12D and KRASG12V were produced in HLAA11:01 transgenic mice, and peripheral blood lymphocytes were generated retrovirally [107].”

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Authors
Wang, Q. J., Yu, Z., Griffith, K., Hanada, K.-I., Restifo, N. P., & Yang, J. C.
Affiliations
National Institutes of Health (US)
Corresponding author
  • Wang, Qiong J.
  • Yang, James C.
Venue
Cancer Immunology Research
Published
2016-02-29
Volume
4
Issue
3
Pages
204-214
ISSN
  • 2326-6066 (ISSN-L)
  • 2326-6074
OpenAlex
W2239878160
Cited by
240
References
37
Citations by year
2026: 17 · 2025: 27 · 2024: 27 · 2023: 30 · 2022: 36 · 2021: 29 · 2020: 24 · 2019: 19 · 2018: 11 · 2017: 13 · 2016: 7
FWCI
10.11
Type
journal article
Language
en
Open access
Locations
  • Cancer Immunology Research (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Institutes of Health (Z99 CA999999)
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › Immunotherapy and Immune Responses
  • Health Sciences › Medicine › Oncology › CAR-T cell therapy research
  • Health Sciences › Medicine › Oncology › Cancer Immunotherapy and Biomarkers
Keywords
KRAS mutation, T cell receptor engineering, neoantigens, HLA-A*11:01, pancreatic cancer, adoptive T cell therapy, xenograft tumor growth, cancer immunotherapy
MeSH terms
Amino Acid Sequence, Animals, Humans, Lymph Nodes, Mice, Transgenic, Neoplasm Transplantation, Pancreatic Neoplasms, Receptors, Antigen, T-Cell, Spleen, Proto-Oncogene Proteins p21(ras), Mice, SCID, Mice, Inbred NOD, Adoptive Transfer, Mutation, Missense, Cell Line, Tumor, HLA-A11 Antigen

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