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Evolution of T cell reactivity against somatic mutations across human colon cancer stages with single-cell genomics and synthetic T cell specificity screening

Project description

Tracing immune responses against early cancer mutations

Cancer emerges through the accumulation of mutations in DNA of somatic cells. However, emerging evidence indicates that such mutations are also common in healthy tissues. Considering that T cells are capable of recognising such mutations, it is unclear why some, and not others, lead to tumour development. With the support of the Marie Skłodowska-Curie Actions programme, the T-REaCT project aims to unravel how T cell responses emerge during early tumour evolution. Researchers will use cutting-edge single-cell genomics to map immune responses in human colon samples from healthy and cancerous tissue. Project findings have the potential to improve early cancer detection and pave the way for new immunotherapies that target pre-malignant lesions.

Objective

Cancers are characterized by the accumulation of somatic mutations in the DNA. The human immune system can detect such mutations in cancers via T cells, which forms an important factor in the activity of clinically used cancer immunotherapies. What challenges our classic view of cancer formation are the recent breakthrough discoveries showing that somatic mutations are ubiquitously found in healthy tissues - why only some of these mutations lead to clonal outgrowths and what are the factors sustaining them? As T cells recognizing somatic mutations are abundant in cancer, it is plausible to speculate these interactions could start early in tumor evolution. Albeit of high interest, studying this phenomenon has been technically challenging as it requires the ability to obtain mutational data at single-cell resolution and interrogating T cell specificities.

The T-REaCT action aims to experimentally map the co-evolution of T cells and cells carrying somatic mutations across tumor evolution. By combining two novel sets of tools and expertise from two competitive fields of synthetic T cell reactivity screening (mentor Dr Schumacher, Netherlands Cancer Institute, the Netherlands) with single-cell genomics (co-mentor Dr Landau, Weill Cornell Medicine and New York Genome Center, the US), we will create a roadmap of immune responses in human colon samples ranging from healthy tissue to adenomas to overt cancer.

By describing the formation of T cell reactivity against somatic mutations from pre-malignant to the earliest steps of malignant seeding, our project has the potential to revolutionize early cancer detection and the eradication of (pre-)malignant lesions through personalized immunotherapies.

Fields of science (EuroSciVoc)

Keywords

Programme(s)

Topic(s)

Funding Scheme

HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European Fellowships

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Call for proposal

(opens in new window) HORIZON-MSCA-2024-PF-01

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Coordinator

STICHTING HET NEDERLANDS KANKER INSTITUUT-ANTONI VAN LEEUWENHOEK ZIEKENHUIS
Net EU contribution
€ 217 076,16
Total cost
No data

Partners (2)