Evidence map›Paper›PMID 42756163›Full record

SynthesisFrontiers in immunology2026

Emerging CAR-Treg and regulatory T cell therapies for inflammatory bowel diseases: a systematic review of a new era of treatment.

Fabio Suarez-Trujillo, Theodore S Steiner, Javier P Gisbert, María Chaparro

Abstract readSystematic Review
In one paragraph

Synthesis in Frontiers in immunology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors.

Fabio Suarez-TrujilloInflammatory Bowel Disease Unit, Gastroenterology Department, Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa (IIS-Princesa), Universidad Autónoma de Madrid (UAM), Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Madrid, Spain.
Theodore S SteinerDepartment of Medicine, BC Children's Hospital Research Institute, Division of Infectious Diseases, University of British Columbia, Vancouver, BC, Canada.
Javier P GisbertInflammatory Bowel Disease Unit, Gastroenterology Department, Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa (IIS-Princesa), Universidad Autónoma de Madrid (UAM), Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Madrid, Spain.
María ChaparroInflammatory Bowel Disease Unit, Gastroenterology Department, Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa (IIS-Princesa), Universidad Autónoma de Madrid (UAM), Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Madrid, Spain.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Inflammatory bowel disease (IBD) is a chronic immune-mediated disorder characterized by dysregulated mucosal immunity. Despite major advances in therapies, a high proportion of patients do not achieve or sustain remission. Cellular immunotherapies have emerged as a mechanistically distinct therapeutic strategy with potential relevance for refractory disease. In the present paper, the authors aim to evaluate the rationale and current evidence supporting chimeric antigen receptor (CAR)-engineered immune cells and regulatory T (Treg)-cell-based therapies in IBD. Preclinical studies and early translational data support biological plausibility and feasibility of these therapies. However, available human evidence remains limited, with sparse clinical experience and short follow-up. Methods: A systematic review was conducted according to PRISMA guidelines. Search was performed in PubMed and EMBASE databases from inception to February 2026 including terms like "IBD", "CAR-T", "CAR-Treg" and "Treg therapy" among others. Eligible studies included preclinical, translational and clinical reports evaluating CAR-engineered immune cells in IBD models. Results: A total of 11 studies met the inclusion criteria after the screening and were included in the review. CAR-Treg technologies build upon advances achieved with conventional CAR-T cells in oncology and enable antigen-specific immune regulation rather than cytotoxicity. Preclinical studies and early translational data support biological plausibility and feasibility. However, available human evidence remains limited, with sparse clinical experience and short follow-up. Major unresolved issues include cellular persistence, phenotypic stability (particularly for Tregs), optimal antigen selection, manufacturing scalability, and long-term safety. Conclusions: Cellular immunotherapies represent a promising but still investigational therapeutic paradigm in IBD. Robust clinical trials with standardized endpoints and long-term safety monitoring are needed before their clinical adoption.

Indexed as

Immunotherapy, AdoptiveInflammatory Bowel DiseasesReceptors, Chimeric AntigenT-Lymphocytes, RegulatoryAnimalsHumansTreatment OutcomeReceptors, Chimeric AntigenCAR-TCAR-Treginflammatory bowel diseaseregulatory T cellsregulatory T-cells therapy

Identifiers

PMID42756163
PMCPMC13582436

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.