Evidence map›Paper›PMID 35672695›Full record

ArticleMicrobial cell factories2022

A recombinant Bifidobacterium bifidum BGN4 strain expressing the streptococcal superoxide dismutase gene ameliorates inflammatory bowel disease.

Sini Kang, Zhaoyan Lin, Yang Xu, Minju Park, Geun Eog Ji, Tony V Johnston, Seockmo Ku, Myeong Soo Park

Open access · goldAbstract read
In one paragraph

Article in Microbial cell factories, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
1.6field-weighted citation impact, top 17% 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

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 20 citations in OpenAlex.

  1. Pooled it
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  8. International journal of molecular sciences · 2025
    Article
  9. Frontiers in microbiology · 2025
    Article
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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

8 authors at 4 institutions in 4 countries.

Sini KangKey Laboratory of Fermentation Engineering (Ministry of Education), National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Cooperative Innovation Center of Industrial Fermentation (Ministry of Education & Hubei Province), Hubei Key Laboratory of Industrial Microbiology, Hubei University of Technology, Wuhan, 430068, China.
Zhaoyan LinDepartment of Food and Nutrition, Research Institute of Human Ecology, Seoul National University, Seoul, 08826, South Korea.
Yang XuKey Laboratory of Fermentation Engineering (Ministry of Education), National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Cooperative Innovation Center of Industrial Fermentation (Ministry of Education & Hubei Province), Hubei Key Laboratory of Industrial Microbiology, Hubei University of Technology, Wuhan, 430068, China.
Minju ParkDepartment of Food and Nutrition, Research Institute of Human Ecology, Seoul National University, Seoul, 08826, South Korea.
Geun Eog JiDepartment of Food and Nutrition, Research Institute of Human Ecology, Seoul National University, Seoul, 08826, South Korea.
Tony V JohnstonFermentation Science Program, School of Agriculture, College of Basic and Applied Sciences, Middle Tennessee State University, Murfreesboro, TN, 37132, USA.
Seockmo KuFermentation Science Program, School of Agriculture, College of Basic and Applied Sciences, Middle Tennessee State University, Murfreesboro, TN, 37132, USA. seockmo.ku@mtsu.edu.ORCID http://orcid.org/0000-0003-2661-5073
Myeong Soo ParkResearch Center, BIFIDO Co., Ltd, Hongcheon, 25117, South Korea. bifidopark@bifido.com.
Seoul National University · KRBial (Portugal) · PTMiddle Tennessee State University · USHubei University of Technology · CN

Funding

Collaborative Grant-in-Aid of the HBUT National "111" Center for Cellular Regulation and Molecular Pharmaceutics XBTK-2021004Doctoral start-up fund of Hubei University of Technology XJ2021000101Faculty Research and Creative Activity Committee No. 221745Regional Specialized Industry Development Program S2848321
6 · The paper itself

Abstract

backgroundInflammatory bowel disease (IBD) is a gastrointestinal disease characterized by diarrhea, rectal bleeding, abdominal pain, and weight loss. Recombinant probiotics producing specific proteins with IBD therapeutic potential are currently considered novel drug substitutes. In this study, a Bifidobacterium bifidum BGN4-SK strain was designed to produce the antioxidant enzymes streptococcal superoxide dismutase (SOD) and lactobacillus catalase (CAT), and a B. bifidum BGN4-pBESIL10 strain was proposed to generate an anti-inflammatory cytokine, human interleukin (IL)-10. In vitro and in vivo efficacy of these genetically modified Bifidobacterium strains were evaluated for colitis amelioration.

resultsIn a lipopolysaccharide (LPS)-stimulated HT-29 cell model, tumor necrosis factor (TNF)-α and IL-8 production was significantly suppressed in the B. bifidum BGN4-SK treatment, followed by B. bifidum BGN4-pBESIL10 treatment, when compared to the LPS-treated control. Synergistic effects on TNF-α suppression were also observed. In a dextran sodium sulphate (DSS)-induced colitis mouse model, B. bifidum BGN4-SK treatment significantly enhanced levels of antioxidant enzymes SOD, glutathione peroxidase (GSH-Px) and CAT, compared to the DSS-only group. B. bifidum BGN4-SK significantly ameliorated the symptoms of DSS-induced colitis, increased the expression of tight junction genes (claudin and ZO-1), and decreased pro-inflammatory cytokines IL-6, IL-1β and TNF-α.

conclusionsThese findings suggest that B. bifidum BGN4-SK ameliorated DSS-induced colitis by generating antioxidant enzymes, maintaining the epithelial barrier, and decreasing the production of pro-inflammatory cytokines. Although B. bifidum BGN4-pBESIL10 exerted anti-inflammatory effects in vitro, the enhancement of IL-10 production and alleviation of colitis were very limited.

Indexed as

Bifidobacterium bifidumColitisInflammatory Bowel DiseasesProbioticsAnimalsAnti-Inflammatory AgentsAntioxidantsCytokinesDextran SulfateDisease Models, AnimalHumansInterleukin-10LipopolysaccharidesMiceSuperoxide DismutaseTumor Necrosis Factor-alphaAnti-Inflammatory AgentsAntioxidantsCytokinesDextran SulfateInterleukin-10LipopolysaccharidesSuperoxide DismutaseTumor Necrosis Factor-alphaBifidobacterium bifidumCatalaseHuman interleukin-10Inflammatory bowel diseaseSuperoxide peroxidase

Identifiers

PMID35672695
PMCPMC9172062
OpenAlexW4281642569

What OpenQuestion holds

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LicenceCC BY
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.