Skip to main content
Go to the home page of the European Commission (opens in new window)
English en
CORDIS - EU research results
CORDIS

Elucidating the cellular basis of therapeutic resistance in Crohn's disease

Project description

Immune mechanisms of therapeutic resistance in Crohn’s disease

Crohn’s disease is a chronic inflammatory disorder of the gastrointestinal tract, affecting millions of people worldwide and imposing a significant physical, emotional and economic burden. Current therapies, such as TNF-blockade, aim to suppress inflammation, but many patients fail to respond. The EU-funded CD-ResOMics project will investigate how immune regulation contributes to primary therapy failure. Researchers will analyse gene expression profiles of single cells from intestinal biopsies of treatment responders and non-responders over time. Paired blood samples will identify potential biomarkers for patient stratification. The study will reveal the cellular and molecular bases of resistance, guiding improved therapeutic strategies for Crohn’s disease.

Objective

Crohn´s Disease (CD) is a chronic inflammatory disease that affects the gastrointestinal tract, affecting millions of people worldwide and presenting a considerable economic burden to health systems. CD has a serious impact in quality of life, not just physically, but also emotionally and socially. Pathogenesis results from a complex interaction between environmental factors, microbiome, genome, and inflammatory system, leading to disruption of the intestinal mucosa. The imbalance between inflammatory and regulatory cells in maintaining an active disease is well known, and most therapies aim to stop the cascade of inflammatory and pro-inflammatory cytokines (i.e. TNF-blockade). One of the major challenges for treatment is the fact that not all patients respond to therapy. Moreover, the mechanisms behind resistance are still not completely understood, making it hard to correctly stratify patients as responders and non-responders at time of diagnosis. We aim to elucidate changes in immune regulation that explain primary response failure to TNF-blockade in CD. We hypothesise that dysfunction of regulatory cells may prevent reinstatement of homeostasis following inflammation targeting. We will establish single-cell transcriptomics of immune cells from biopsies at the time of diagnosis, as well as in patients responding to treatment and non-responders. Then, we will use computational methods to investigate how immune cells change with time, acquiring a state supporting therapeutic resistance. Moreover, we will illuminate the relationship between immune dysregulation and anatomic niches using spatial transcriptomics. Finally, we will analyse paired peripheral blood samples, for the identification of putative biomarkers for stratification of patients according to TNF-blockade response.
This proposal will provide unprecedented insights on the mechanisms involved in therapeutic resistance in CD, which could potentially lead to the development of new treatment approaches.

Fields of science (EuroSciVoc)

Keywords

Programme(s)

Topic(s)

Funding Scheme

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

See all projects funded under this funding scheme

Call for proposal

(opens in new window) HORIZON-WIDERA-2023-TALENTS-02

See all projects funded under this call

Coordinator

FUNDACAO GIMM - GULBENKIAN INSTITUTE FOR MOLECULAR MEDICINE
Net EU contribution
€ 172 618,56
Address
AVENIDA PROFESSOR EGAS MONIZ
1649-035 LISBOA
Portugal
Activity type
Research Organisations
Links
Total cost
No data