Evidence map›Paper›PMID 22761911›Full record

ArticlePloS one2012

Photodynamic therapy can induce a protective innate immune response against murine bacterial arthritis via neutrophil accumulation.

Masamitsu Tanaka, Pawel Mroz, Tianhong Dai, Liyi Huang, Yuji Morimoto, Manabu Kinoshita, Yasuo Yoshihara, Koichi Nemoto, Nariyoshi Shinomiya, Suhji Seki and 1 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
5.1field-weighted citation impact, top 4% 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

29 citing papers in PubMed, 73 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Review
  5. Article
  6. Review
  7. Recent advances in nanoparticle-based targeting tactics for antibacterial photodynamic therapy.Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology · 2022
    Review
  8. Review
  9. Review
  10. Article
  11. Review
  12. Review
  13. Article
  14. Nonconventional Therapeutics againstMicrobiology spectrum · 2018
    Article
  15. Review
  16. Neutrophils: Beneficial and Harmful Cells in Septic Arthritis.International journal of molecular sciences · 2018
    Review
  17. Review
  18. Review
  19. Article
  20. 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

11 authors at 4 institutions in 2 countries.

Masamitsu TanakaWellman Center for Photomedicine, Massachusetts General Hospital, Boston, Massachusetts, United States of America.
Pawel Mroz
Tianhong Dai
Liyi Huang
Yuji Morimoto
Manabu Kinoshita
Yasuo Yoshihara
Koichi Nemoto
Nariyoshi Shinomiya
Suhji Seki
Michael R Hamblin
National Defense Medical College · JPHarvard University · USHarvard–MIT Division of Health Sciences and Technology · USMassachusetts General Hospital · US

Funding

DERMATOLOGY TRAINING GRANTT32AR007098 · NIAMS · HARVARD UNIVERSITY (MEDICAL SCHOOL) · PI THOMAS S. KUPPER · 1986 to 2026
$8.1M
Photodynamic Therapy of Localized InfectionsR01AI050875 · NIAID · MASSACHUSETTS GENERAL HOSPITAL · PI HAMBLIN, MICHAEL R · 2003 to 2017
$4.8M
NIAID NIH HHS R01 AI050875NIAID NIH HHS R01AI050875NIAMS NIH HHS T32 AR007098
6 · The paper itself

Abstract

backgroundLocal microbial infections induced by multiple-drug-resistant bacteria in the orthopedic field can be intractable, therefore development of new therapeutic modalities is needed. Photodynamic therapy (PDT) is a promising alternative modality to antibiotics for intractable microbial infections, and we recently reported that PDT has the potential to accumulate neutrophils into the infected site which leads to resolution of the infection. PDT for cancer has long been known to be able to stimulate the innate and adaptive arms of the immune system. METHODOLOGY/PRINCIPAL

findingsIn the present study, a murine methicillin-resistant Staphylococcus aureus (MRSA) arthritis model using bioluminescent MRSA and polystyrene microparticles was established, and both the therapeutic (Th-PDT) and preventive (Pre-PDT) effects of PDT using methylene blue as photosensitizer were examined. Although Th-PDT could not demonstrate direct bacterial killing, neutrophils were accumulated into the infectious joint space after PDT and MRSA arthritis was reduced. With the preconditioning Pre-PDT regimen, neutrophils were quickly accumulated into the joint immediately after bacterial inoculation and bacterial growth was suppressed and the establishment of infection was inhibited. CONCLUSIONS/SIGNIFICANCE: This is the first demonstration of a protective innate immune response against a bacterial pathogen produced by PDT.

Indexed as

Immunity, InnatePhotochemotherapyAnimalsArthritis, InfectiousMethicillin-Resistant Staphylococcus aureusMethylene BlueMiceNeutrophilsPhotosensitizing AgentsMethylene BluePhotosensitizing Agents

Identifiers

PMID22761911
PMCPMC3383702
OpenAlexW2092598274

What OpenQuestion holds

Textmetadata
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.