Defining the Role of invariant Natural Killer T (iNKT) Cells in Perianal Fistula 

Sulak Anandabaskaran © Sulak Anandabaskaran

Background & aim of research

Perianal fistulising Crohn’s Disease (pCD) is associated with poor outcomes and impaired quality of life. It remains difficult to manage despite medical and surgical advancements, likely due to poor understanding of the underlying immunology. Previous multiparameter flow cytometry work in our lab on immune cells isolated from peripheral blood and fistula curettage samples showed expansion of iNKT cells in perianal fistula compared to peripheral blood. Furthermore, iNKTs have been suggested to have a potential role in key processes in fistula pathogenesis, namely epithelial-to-mesenchymal transition and extracellular matrix degradation. The role of iNKTs in inflammation remains poorly defined and their function in human IBD is largely unexplored. Therefore, in this experiment we aim to further define their role in the pathogenesis of perianal fistula.

Intestinal epithelial cell stress modulates enteric fibroblastic and neuronal profiles in Inflammatory Bowel Disease

Celia Escudero-Hernández  © Celia Escudero-Hernández

Background & aim of research

Genetic studies have implicated the autophagy gene ATG16L1 and the endoplasmic stress (ER) gene XBP1 in the pathogenesis of Inflammatory Bowel Disease (IBD). Indeed, spontaneous inflammation develops in mice lacking ATG16L1 or XBP1 expression in intestinal epithelial cells (IEC). Because of the dominant role of failing autophagy and ER stress in IBD, we hypothesise that IEC stress contributes to intestinal fibrosis, gut dysmotility and pain during colitis.

This project aims, for the first time, to thoroughly comprehend the role of crucial IBD epithelial stress factors (i.e. ATG16L1 and XBP1 impairments) in enteric fibroblasts and neurons and to explore potential future intervention points.

Decoding the neuroimmune crosstalk in Inflammatory Bowel Diseases

Silvia Cerantola © Silvia Cerantola

Background & aim of research

Inflammatory Bowel Disease (IBD) results from an anomalous interaction between genetic, environmental, immunoregulatory and microbial-derived factors. IBD- associated specific mutations include genes involved in microbial recognition, such as mutations in the Toll-like receptor 4 (TLR4). Beside controlling host defence responses, TLR4 modulates enteric nervous system (ENS) activity, gut motility and repair processes following an insult. TLR4 deficiency in mice leads to significant ENS alterations, characterised by modified gut motility and susceptibility to inflammation. The findings of decreased gut catecholamine levels in IBD patients and the onset of milder experimental colitis after sympathectomy highlight the role of the nervous system as a key regulator of immune responses. Therefore, our research project aims to decode the neuroimmune interactions between the catecholaminergic system and innate immune sensor TLR4 in dinitrobenzene sulphonic acid (DNBS)-induced ileitis.

Deciphering the bioactive role of extracellular matrix fragments (matrikines) in Crohn's Disease (CD) fibrostenosis as potential therapeutic targets and biomarkers

Margarita Papatheodoridi © Margarita Papatheodoridi

Background & aim of research

We have pioneered in studying ex vivo extracellular matrix (ECM) remodelling, which is known for its key role in Crohn’s Disease (CD) fibrostenosis. By adding disease-relevant enzymes on the ECM of CD patients’ intestine, we identified numerous matrikines (specific ECM peptide fragments) unique in CD fibrostenosis. Peptidomics software analysis showed specific likelihood for bioactivity for 19 of those matrikines (Giuffrida et. al, unpublished data) ().

This project aims to explore the bioactivity of matrikines in CD fibrostenosis in vitro.

Examining a novel sulphide-reducing diet As Therapy in Ulcerative Colitis (EAT-UC trial)

Robert V. Bryant © Robert V. Bryant

Background & aim of research

It is currently unknown whether diet influences inflammation in Ulcerative Colitis (UC). Observational and experimental data suggest that modulating sulphide within the luminal environment may have therapeutic potential for UC. The aim of this trial is therefore to determine whether a sulphide-reducing diet, designed to attenuate excess microbial production of potentially noxious gases in the colon, can induce remission in UC.

Comparative accuracy of TransPerineal UltraSound (TPUS) versus Magnetic Resonance Imaging (MRI) for the assessment of perianal fistulae in patients with Crohn’s Disease: a prospective observational longitudinal cohort study

Ferdinando D’Amico © Ferdinando D’Amico

Background & aim of research

Magnetic resonance imaging (MRI) is the first-line imaging modality for monitoring of perianal disease in patients with Crohn’s Disease (CD). However, its use depends on local availability, costs and expertise. Few studies are available on the role of transperineal ultrasound (TPUS). Performing MRI alone in all patients would impose a substantial expense on the health service and would represent a limitation for the many patients who cannot tolerate the procedure (e.g. owing to claustrophobia). For this reason, we urgently need a painless, non-invasive, cost-effective and widely available modality to assess perianal disease and predict disease outcomes. In this observational prospective study, we investigate the accuracy of TPUS versus pelvic MRI in the diagnosis and monitoring of medical and surgical treatment of perianal fistulae in CD patients.

SciCom announces the recent election of new member Isabelle Cleynen during the ECCO’22 Congress, with a mandate running from 2022 to 2025.

Sebastian Zeissig  © ECCO

Dear ECCO Friends and Members,

It is with great pleasure and excitement that we announce the brand new ECCO Young Researcher Award 2022. This new ECCO Prize will be awarded to outstanding young researchers in recognition of their excellent contributions to basic and clinical science in the field of IBD. With this prize, ECCO strives to further support the visibility of exceptional young talents in IBD, acknowledge their achievements in the field and facilitate their ongoing and future research.

Isabelle Cleynen  © ECCO

This year we celebrated the 10th edition of the SciCom Workshop. What better way to do this than by looking ahead at future therapeutic IBD targets?

To set the scene, Marc Ferrante took us through the limitations of current IBD therapies, including the therapeutic ceiling, lack of information on niche indications (e.g. anal fistula, pouchitis), drugs that become available despite many remaining questions, and safety and economic aspects. However, there is a bright future ahead, with many opportunities to explore, such as the need for novel drugs with better efficacy, thinking beyond anti-inflammatory drugs, head-to-head trials, using drugs more efficiently, considering other aetiological factors, precision medicine and more.

Sebastian Zeissig  © ECCO

One of the main goals of ECCO is to promote IBD-related basic and clinical research as well as to foster interaction and productive collaboration among European research groups working in the IBD field. To achieve this goal, ECCO supports numerous funding schemes with different scopes including ECCO Fellowships, Grants, and Travel Awards.