Evidence map›Paper›PMID 25644006›Full record

ArticleInfection and immunity2015

Essential engagement of Toll-like receptor 2 in initiation of early protective Th1 response against rough variants of Mycobacterium abscessus.

Jong-Seok Kim, Min-Jung Kang, Woo Sik Kim, Seung Jung Han, Hong Min Kim, Ho Won Kim, Kee Woong Kwon, So Jeong Kim, Seung Bin Cha, Seok-Yong Eum and 4 more

Abstract read
In one paragraph

Article in Infection and immunity, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
–field-weighted citation impact
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. Article
  2. Review
  3. Review
  4. Article
  5. Article
  6. Alternatives to Antibiotics againstAntibiotics (Basel, Switzerland) · 2022
    Review
  7. Microorganisms · 2022
    Review
  8. Review
  9. Review
  10. Review
  11. Article
  12. Observational
  13. 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

14 authors.

Jong-Seok KimDepartment of Microbiology and Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul, South Korea.
Min-Jung KangLaboratory Animal Medicine, College of Veterinary Medicine, Chonnam National University, Gwangju, South Korea.
Woo Sik KimDepartment of Microbiology and Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul, South Korea.
Seung Jung HanDepartment of Microbiology and Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul, South Korea.
Hong Min KimDepartment of Microbiology and Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul, South Korea.
Ho Won KimDepartment of Microbiology and Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul, South Korea.
Kee Woong KwonDepartment of Microbiology and Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul, South Korea.
So Jeong KimDepartment of Microbiology and Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul, South Korea.
Seung Bin ChaDepartment of Microbiology and Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul, South Korea.
Seok-Yong EumDivision of Immunopathology and Cellular Immunology, International Tuberculosis Research Center, Changwon, South Korea.
Won-Jung KohDivision of Pulmonary and Critical Care Medicine, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea.
Sang-Nae ChoDepartment of Microbiology and Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul, South Korea.
Jong-Hwan ParkLaboratory Animal Medicine, College of Veterinary Medicine, Chonnam National University, Gwangju, South Korea jonpark@jnu.ac.kr sjshin@yuhs.ac.
Sung Jae ShinDepartment of Microbiology and Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul, South Korea jonpark@jnu.ac.kr sjshin@yuhs.ac.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Although Mycobacterium abscessus (M. abscessus) is becoming more prevalent in patients without overt immunodeficiency, little is known about the factors that contribute to disease susceptibility. This study was undertaken to investigate how Toll-like receptor 2 (TLR2) functionally contributes to the generation of protective immunity against M. abscessus in a morphotype-specific manner. We found that Tlr2-/- mice were extremely susceptible to an intravenous (i.v.) model of infection by M. abscessus rough variants, displaying uncontrolled infection in the lungs and a significantly lower survival rate than with wild-type (WT) mice. This uncontrolled infection resulted from failures in the following processes: (i) production of the crucial cytokines gamma interferon (IFN-γ), tumor necrosis factor alpha (TNF-α), and interleukin 12p70 (IL-12p70); (ii) early infiltration of neutrophils, monocytes, and dendritic cells (DCs) in the lungs of Tlr2-/- mice; (iii) rapid influx of CD4+ and CD8+ T cells; and (iv) the expansion of memory/effector T cells. Notably, systemic administration of M. abscessus culture filtrate-treated syngeneic DCs from WT mice greatly strengthened immune priming in vivo, resulting in a dramatic reduction in bacterial growth and improved long-term survival in Tlr2-/- mice, with a recovery of protective immunity. Our findings demonstrate that TLR2 is an essential contributor to instructive and effector immunity during M. abscessus infection in a morphotype-specific manner.

Indexed as

AnimalsBone Marrow CellsCD8-Positive T-LymphocytesCells, CulturedDendritic CellsImmunologic MemoryInterferon-gammaInterleukin-12LungMacrophagesMiceMice, Inbred C57BLMice, KnockoutMycobacteriumTh1 CellsToll-Like Receptor 2Interferon-gammaInterleukin-12Tlr2 protein, mouseToll-Like Receptor 2Tumor Necrosis Factor-alpha

Identifiers

PMID25644006
PMCPMC4363419

What OpenQuestion holds

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Registered trials

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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.