Evidence map›Paper›PMID 25024222›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2014

Functional genomics of Lactobacillus casei establishment in the gut.

Hélène Licandro-Seraut, Hélène Scornec, Thierry Pédron, Jean-François Cavin, Philippe J Sansonetti

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
7.8field-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

19 citing papers in PubMed, 43 citations in OpenAlex.

  1. Article
  2. Nutrients · 2026
    Article
  3. Article
  4. Resistance to host antimicrobial peptides mediates resilience of gut commensals during infection and aging inProceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  5. Frontiers in cellular and infection microbiology · 2023
    Review
  6. Article
  7. Biomedicines · 2022
    Article
  8. Article
  9. Article
  10. Study of theFrontiers in microbiology · 2020
    Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. From homeostasis to pathology: decrypting microbe-host symbiotic signals in the intestinal crypt.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2016
    Review
  17. Article
  18. Article
  19. Gut microbes
    Article
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

5 authors at 3 institutions in 1 country.

Hélène Licandro-SerautUnité Mixte de Recherche A 02102 Procédés Alimentaires et Microbiologiques, AgroSup Dijon/Université de Bourgogne, 21000 Dijon, France;Unité de Pathogénie Microbienne Moléculaire andInstitut National de la Santé et de la Recherche Médicale U786, Institut Pasteur, 75724 Paris Cedex 15, France; and.
Hélène ScornecUnité Mixte de Recherche A 02102 Procédés Alimentaires et Microbiologiques, AgroSup Dijon/Université de Bourgogne, 21000 Dijon, France;
Thierry PédronUnité de Pathogénie Microbienne Moléculaire andInstitut National de la Santé et de la Recherche Médicale U786, Institut Pasteur, 75724 Paris Cedex 15, France; and.
Jean-François CavinUnité Mixte de Recherche A 02102 Procédés Alimentaires et Microbiologiques, AgroSup Dijon/Université de Bourgogne, 21000 Dijon, France;
Philippe J SansonettiUnité de Pathogénie Microbienne Moléculaire andInstitut National de la Santé et de la Recherche Médicale U786, Institut Pasteur, 75724 Paris Cedex 15, France; andChaire de Microbiologie et Maladies Infectieuses, Collège de France, 75005 Paris, France philippe.sansonetti@pasteur.fr.
Inserm · FRUniversité de Bourgogne · FRInstitut Pasteur · FR

Funding

Howard Hughes Medical Institute
6 · The paper itself

Abstract

Although the composition of the gut microbiota and its symbiotic contribution to key host physiological functions are well established, little is known as yet about the bacterial factors that account for this symbiosis. We selected Lactobacillus casei as a model microorganism to proceed to genomewide identification of the functions required for a symbiont to establish colonization in the gut. As a result of our recent development of a transposon-mutagenesis tool that overcomes the barrier that had prevented L. casei random mutagenesis, we developed a signature-tagged mutagenesis approach combining whole-genome reverse genetics using a set of tagged transposons and in vivo screening using the rabbit ligated ileal loop model. After sequencing transposon insertion sites in 9,250 random mutants, we assembled a library of 1,110 independent mutants, all disrupted in a different gene, that provides a representative view of the L. casei genome. By determining the relative quantity of each of the 1,110 mutants before and after the in vivo challenge, we identified a core of 47 L. casei genes necessary for its establishment in the gut. They are involved in housekeeping functions, metabolism (sugar, amino acids), cell wall biogenesis, and adaptation to environment. Hence we provide what is, to our knowledge, the first global functional genomics analysis of L. casei symbiosis.

Indexed as

Lacticaseibacillus caseiMutationAnimalsGenome, BacterialGenome-Wide Association StudyGenomicsIleumMutagenesisRabbitscommensalismLactic acid bacteria

Identifiers

PMID25024222
PMCPMC4121828
OpenAlexW2027727991

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.