Evidence map›Paper›PMID 18539800›Full record

ArticleApplied and environmental microbiology2008

Implication of an outer surface lipoprotein in adhesion of Bifidobacterium bifidum to Caco-2 cells.

Simone Guglielmetti, Isabella Tamagnini, Diego Mora, Mario Minuzzo, Alessio Scarafoni, Stefania Arioli, Jukka Hellman, Matti Karp, Carlo Parini

Open access · greenAbstract read
In one paragraph

Article in Applied and environmental microbiology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 66 papers.

0numbers the graph read from it
0cells of the map it votes in
66citing papers in PubMed
8.0field-weighted citation impact, top 3% 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

66 citing papers in PubMed, 121 citations in OpenAlex.

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  16. Genomic and ecological approaches to identify theFrontiers in microbiology · 2024
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  20. Frontiers in pharmacology · 2022
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6 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

9 authors at 3 institutions in 2 countries.

Simone GuglielmettiDepartment of Food Science and Microbiology, University of Milan, Via Celoria 2, 20133 Milan, Italy. simone.guglielmetti@unimi.it
Isabella Tamagnini
Diego Mora
Mario Minuzzo
Alessio Scarafoni
Stefania Arioli
Jukka Hellman
Matti Karp
Carlo Parini
Tampere University · FIUniversity of Milan · ITUniversity of Turku · FI

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We found that the human intestinal isolate Bifidobacterium bifidum MIMBb75 strongly adhered to Caco-2 cells. Proteinase K and lithium chloride treatments showed that proteins play a key role in MIMBb75 adhesion to Caco-2 cells. By studying the cell wall-associated proteins, we identified a surface protein, which we labeled BopA. We purified the protein chromatographically and found that it functioned as an adhesion promoter on Caco-2 cells. In silico analysis of the gene coding for this protein and globomycin experiments showed that BopA is a cysteine-anchored lipoprotein expressed as a precursor polypeptide. A database search indicated that BopA appears to function biologically as an oligopeptide/tripeptide-solute-binding protein in the ABC transport system. We discovered a protein corresponding to BopA and its gene in eight other highly adherent B. bifidum strains. Finally, we found that B. bifidum MIMBb75 and BopA affected the production of interleukin-8 in Caco-2 epithelial cells. BopA is the first protein described to date to be directly involved in the adhesion of bifidobacteria to Caco-2 cells and to show immunomodulatory activity.

Indexed as

Bacterial AdhesionBacterial ProteinsBifidobacteriumCaco-2 CellsCell WallColonFecesHumansLipoproteinsMolecular Sequence DataBacterial ProteinsLipoproteins

Identifiers

PMID18539800
PMCPMC2519326
OpenAlexW2117742527

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.