ArticleJournal of Crohn's & colitis2020
Inherent Immune Cell Variation Within Colonic Segments Presents Challenges for Clinical Trial Design.
Article in Journal of Crohn's & colitis, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
What it found
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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.
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.
Who cites it
10 citing papers in PubMed, 15 citations in OpenAlex.
- Distinct T and innate-like lymphocyte reprogramming following lyophilized fecal microbiota transplantation in recurrentGut microbes · 2026Article
- Pharmacological markers of HIV prevention for oral pre-exposure prophylaxis in men who have sex with men.Nature communications · 2026Article
- Regional and Sex-Dependent Immune Profiling Across the Colon in A Mouse Model of Ulcerative Colitis.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2026Article
- Spatial profiling of the mouse colonic immune landscape associated with colitis and sex.Communications biology · 2024Article
- Development of a Global Metabo-Lipid-Prote-omics Workflow to Compare Healthy Proximal and Distal Colonic Epithelium in Mice.Journal of proteome research · 2024Article
- Differential efficacy of medical therapies for ulcerative colitis according to disease extent: patient-level analysis from multiple randomized controlled trials.EClinicalMedicine · 2024Article
- Article
- Article
- Exploring the Early Phase of Crohn's Disease.Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association · 2021Review
- The Emerging Role of Tissue-Resident Memory CD8Frontiers in oncology · 2021Review
Corrections and comments
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Authors and funding
11 authors at 6 institutions in 3 countries.
Funding
Abstract
BACKGROUND AND
aimsIntestinal biopsy sampling during IBD trials represents a valuable adjunct strategy for understanding drug responses at the tissue level. Given the length and distinctive embryonic origins of the proximal and distal colon, we investigated whether inherent regional differences of immune cell composition could introduce confounders when sampling different disease stages, or pre/post drug administration. Here, we capitalise on novel mass cytometry technology to perform deep immunophenotyping of distinct healthy colonic segments, using the limited numbers of biopsies that can be harvested from patients.
methodsBiopsies [2.8 mm] were collected from the caecum, transverse colon, descending colon, and rectum of normal volunteers. Intestinal leukocytes were isolated, stained with a panel of 37 antibodies, and mass cytometry data acquired.
resultsSite-specific patterns of leukocyte localisation were observed. The proximal colon featured increased CD8+ T cells [particularly resident memory], monocytes, and CD19+ B cells. Conversely, the distal colon and rectum tissues exhibited enrichment for CD4+ T cells and antibody-secreting cells. The transverse colon displayed increased abundance of both γδ T cells and NK cells. Subsets of leukocyte lineages also displayed gradients of expression along the colon length.
conclusionsOur results show an inherent regional immune cell variation within colonic segments, indicating that regional mucosal signatures must be considered when assessing disease stages or the prospective effects of trial drugs on leukocyte subsets. Precise protocols for intestinal sampling must be implemented to allow for the proper interpretation of potential differences observed within leukocyte lineages present in the colonic lamina propria.
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Registered trials
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 Socratic graph.