Evidence map›Paper›PMID 33189700›Full record

ArticleGastroenterology2021

A Novel Role of SLC26A3 in the Maintenance of Intestinal Epithelial Barrier Integrity.

Anoop Kumar, Shubha Priyamvada, Yong Ge, Dulari Jayawardena, Megha Singhal, Arivarasu N Anbazhagan, Ishita Chatterjee, Aneal Dayal, Mitul Patel, Kimia Zadeh and 7 more

Open access · greenAbstract read
In one paragraph

Article in Gastroenterology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 88 papers.

0numbers the graph read from it
0cells of the map it votes in
88citing papers in PubMed
9.6field-weighted citation impact, top 1% of its field
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

88 citing papers in PubMed, 138 citations in OpenAlex.

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  6. NontoxigenicMicroorganisms · 2026
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  9. Temporal transcriptomic profiling identifies core regulators in cytokine-induced gut barrier disruption in differentiated Caco-2 cells.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2026
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  14. Microorganisms · 2026
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28 more citing papers are in PubMed but not listed here.

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

17 authors at 2 institutions in 1 country.

Anoop KumarJesse Brown Veterans Affairs Medical Center, Chicago, Illinois; Division of Gastroenterology and Hepatology, Department of Medicine, University of Illinois at Chicago, Chicago, Illinois.
Shubha PriyamvadaDivision of Gastroenterology and Hepatology, Department of Medicine, University of Illinois at Chicago, Chicago, Illinois.
Yong GeDepartment of Infectious Diseases and Immunology and Division of Gastroenterology, Hepatology and Nutrition, Department of Medicine, University of Florida, Gainesville, Florida.
Dulari JayawardenaDivision of Gastroenterology and Hepatology, Department of Medicine, University of Illinois at Chicago, Chicago, Illinois.
Megha SinghalDivision of Gastroenterology and Hepatology, Department of Medicine, University of Illinois at Chicago, Chicago, Illinois.
Arivarasu N AnbazhaganDivision of Gastroenterology and Hepatology, Department of Medicine, University of Illinois at Chicago, Chicago, Illinois.
Ishita ChatterjeeDivision of Gastroenterology and Hepatology, Department of Medicine, University of Illinois at Chicago, Chicago, Illinois.
Aneal DayalDivision of Gastroenterology and Hepatology, Department of Medicine, University of Illinois at Chicago, Chicago, Illinois.
Mitul PatelDivision of Gastroenterology and Hepatology, Department of Medicine, University of Illinois at Chicago, Chicago, Illinois.
Kimia ZadehDepartment of Infectious Diseases and Immunology and Division of Gastroenterology, Hepatology and Nutrition, Department of Medicine, University of Florida, Gainesville, Florida.
Seema SaksenaJesse Brown Veterans Affairs Medical Center, Chicago, Illinois; Division of Gastroenterology and Hepatology, Department of Medicine, University of Illinois at Chicago, Chicago, Illinois.
Waddah A AlrefaiJesse Brown Veterans Affairs Medical Center, Chicago, Illinois; Division of Gastroenterology and Hepatology, Department of Medicine, University of Illinois at Chicago, Chicago, Illinois.
Ravinder K GillDivision of Gastroenterology and Hepatology, Department of Medicine, University of Illinois at Chicago, Chicago, Illinois.
Mojgan ZadehDepartment of Infectious Diseases and Immunology and Division of Gastroenterology, Hepatology and Nutrition, Department of Medicine, University of Florida, Gainesville, Florida.
Ni ZhaoDepartment of Infectious Diseases and Immunology and Division of Gastroenterology, Hepatology and Nutrition, Department of Medicine, University of Florida, Gainesville, Florida.
Mansour MohamadzadehDepartment of Infectious Diseases and Immunology and Division of Gastroenterology, Hepatology and Nutrition, Department of Medicine, University of Florida, Gainesville, Florida.
Pradeep K DudejaJesse Brown Veterans Affairs Medical Center, Chicago, Illinois; Division of Gastroenterology and Hepatology, Department of Medicine, University of Illinois at Chicago, Chicago, Illinois. Electronic address: pkdudeja@uic.edu.
University of Illinois Chicago · USUniversity of Florida · US

Funding

Intestinal Anion Transporters: Function and RegulationR01DK054016 · NIDDK · UNIVERSITY OF ILLINOIS AT CHICAGO · PI DUDEJA, PRADEEP K · 1998 to 2022
$7.0M
Bacterial surface layer-specific immune protection against gut microbial infectionR01DK109560 · NIDDK · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI ZADEH, MANSOUR M · 2016 to 2024
$3.5M
Transporter Trafficking Mechanisms in Infectious DiarrheaR01DK092441 · NIDDK · UNIVERSITY OF ILLINOIS AT CHICAGO · PI DUDEJA, PRADEEP K · 2011 to 2020
$3.0M
Intestinal 5-HT Transporter: A novel therapeutic target for GI disordersR01DK098170 · NIDDK · UNIVERSITY OF ILLINOIS AT CHICAGO · PI GILL, RAVINDER K · 2014 to 2022
$3.0M
Gut-liver crosstalk in bile-acid induced diarrheaR01DK109709 · NIDDK · UNIVERSITY OF ILLINOIS AT CHICAGO · PI ALREFAI, WADDAH A. · 2016 to 2019
$1.1M
Novel Role of DRA/SLC26A3 Downregulation in Gut Dysbiosis, Inflammation and InfectionR56DK092441 · NIDDK · UNIVERSITY OF ILLINOIS AT CHICAGO · PI DUDEJA, PRADEEP K · 2023 to 2023
$533k
BLRD Research Career Scientist Award ApplicationIK6BX005243 · VA · JESSE BROWN VA MEDICAL CENTER · PI ALREFAI, WADDAH A. · 2020 to 2025
–
BLR&D Research Career Scientist Award ApplicationIK6BX005242 · VA · JESSE BROWN VA MEDICAL CENTER · PI Pradeep K Dudeja · 2020 to 2026
–
A Novel Role of DRA in IBD PathogenesisIK2BX004719 · VA · JESSE BROWN VA MEDICAL CENTER · PI KUMAR, ANOOP · 2019 to 2023
–
Regulation of Intestinal Sodium Absorption in Health and DiseaseI01BX002867 · VA · JESSE BROWN VA MEDICAL CENTER · PI Seema Saksena · 2016 to 2026
–
Mechanisms of Regulation of Intestinal Cl Absorption in IBD Associated DiarrheaI01BX002011 · VA · JESSE BROWN VA MEDICAL CENTER · PI DUDEJA, PRADEEP K · 2013 to 2024
–
Regulation of Intestinal Bile Acid Absorption in Health and Cholesterol-Related DisordersI01BX000152 · VA · JESSE BROWN VA MEDICAL CENTER · PI Waddah A. Alrefai · 2009 to 2026
–
BLRD VA I01 BX000152BLRD VA I01 BX002011BLRD VA I01 BX002867BLRD VA I01 BX006177BLRD VA IK2 BX004719BLRD VA IK6 BX005242BLRD VA IK6 BX005243NIDDK NIH HHS R01 DK054016NIDDK NIH HHS R01 DK092441NIDDK NIH HHS R01 DK098170NIDDK NIH HHS R01 DK109560NIDDK NIH HHS R01 DK109709NIDDK NIH HHS R56 DK092441
6 · The paper itself

Abstract

BACKGROUND &

aimsThe down-regulated in adenoma (DRA) protein, encoded by SLC26A3, a key intestinal chloride anion exchanger, has recently been identified as a novel susceptibility gene for inflammatory bowel disease (IBD). However, the mechanisms underlying the increased susceptibility to inflammation induced by the loss of DRA remain elusive. Compromised barrier is a key event in IBD pathogenesis. The current studies were undertaken to elucidate the impact of DRA deficiency on epithelial barrier integrity and to define underlying mechanisms.

methodsWild-type and DRA-knockout (KO) mice and crypt-derived colonoids were used as models for intestinal epithelial response. Paracellular permeability was measured by using fluorescein isothiocyanate-dextran flux. Immunoblotting, immunofluorescence, immunohistochemistry, and ribonucleoprotein immunoprecipitation assays were performed. Gut microbiome analysis was conducted to investigate the impact of DRA deficiency on gut microbial communities.

resultsDRA-KO mice exhibited an increased colonic paracellular permeability with significantly decreased levels of tight junction/adherens junction proteins, including ZO-1, occludin, and E-cadherin. A similar expression pattern of occludin and E-cadherin was observed in colonoids derived from DRA-KO mice and short hairpin RNA-mediated DRA knockdown in Caco-2 cells. Microbial analysis showed gut dysbiosis in DRA-KO mice. However, cohousing studies showed that dysbiosis played only a partial role in maintaining tight junction protein expression. Furthermore, our results showed increased binding of RNA-binding protein CUGBP1 with occludin and E-cadherin genes in DRA-KO mouse colon, suggesting that posttranscriptional mechanisms play a key role in gut barrier dysfunction.

conclusionsTo our knowledge, our studies demonstrate a novel role of DRA in maintaining the intestinal epithelial barrier function and potential implications of its dysregulation in IBD pathogenesis.

Indexed as

AnimalsAntiportersCaco-2 CellsCadherinsCELF1 ProteinChloride-Bicarbonate AntiportersDisease Models, AnimalDysbiosisGene Knockdown TechniquesHumansInflammatory Bowel DiseasesIntestinal MucosaMaleMiceMice, KnockoutOccludinAntiportersCadherinsCdh1 protein, mouseCELF1 ProteinCELF1 protein, mouseChloride-Bicarbonate AntiportersOccludinOcln protein, mouseSLC26A3 protein, humanSlc26a3 protein, mouseSulfate TransportersDown-regulated in AdenomaGut MicrobiotaInflammatory Bowel DiseaseIntestinal Chloride Transporter

Identifiers

PMID33189700
PMCPMC7956241
OpenAlexW3104324864

What OpenQuestion holds

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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.