Evidence map›Paper›PMID 14688100›Full record

ArticleInfection and immunity2004

Melanin from Fonsecaea pedrosoi induces production of human antifungal antibodies and enhances the antimicrobial efficacy of phagocytes.

Daniela S Alviano, Anderson J Franzen, Luiz R Travassos, Carla Holandino, Sonia Rozental, Regina Ejzemberg, Celuta S Alviano, Marcio L Rodrigues

Open access · greenAbstract read
In one paragraph

Article in Infection and immunity, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed
3.2field-weighted citation impact, top 8% 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

39 citing papers in PubMed, 100 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Professor Luiz R. Travassos and the study of surface structures of fungal pathogens.Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2023
    Review
  5. Can Pyomelanin Produced byInternational journal of molecular sciences · 2023
    Article
  6. Article
  7. Silver(I) 1,10-Phenanthroline Complexes Are Active againstJournal of fungi (Basel, Switzerland) · 2023
    Article
  8. Expanding the Toolbox for Functional Genomics inJournal of fungi (Basel, Switzerland) · 2023
    Article
  9. Melanization ofJournal of fungi (Basel, Switzerland) · 2022
    Article
  10. Review
  11. Review
  12. Article
  13. Article
  14. Frontiers in microbiology · 2018
    Article
  15. Article
  16. Chromoblastomycosis.Clinical microbiology reviews · 2017
    Review
  17. Article
  18. Mediators of inflammation · 2017
    Review
  19. Article
  20. Association of IgG immunoglobulin and subclasses level with the severity of chromoblastomycosis due to Fonsecaea pedrosoi and therapeutic response to itraconazole.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2014
    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

8 authors at 3 institutions in 1 country.

Daniela S AlvianoInstituto de Microbiologia Professor Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil.
Anderson J Franzen
Luiz R Travassos
Carla Holandino
Sonia Rozental
Regina Ejzemberg
Celuta S Alviano
Marcio L Rodrigues
Fundação Carlos Chagas · BRUniversidade Federal de São Paulo · BRUniversidade Federal do Rio de Janeiro · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Fonsecaea pedrosoi is a fungal pathogen that produces melanin. The functions of melanin and its possible influence in the protective immunological response during infection by F. pedrosoi are not known. In this work, treatment of F. pedrosoi mycelia with proteases and glycosidases followed by a denaturing agent and hot concentrated acid left a black residue. Scanning electron microscopy demonstrated that this processed melanized residue resembled very closely the intact mycelium in shape and size. Melanin particles were also isolated from culture fluids of conidia or sclerotic forms of F. pedrosoi. Secreted melanins were reactive with sera from infected human patients, suggesting that F. pedrosoi synthesizes melanin in vivo. The antibodies against melanin were purified from patients' sera and analyzed by indirect immunofluorescence. They reacted with sclerotic cells from patients' lesions as well as with sclerotic bodies cultivated in vitro, conidia, mycelia, and digested residues. Treatment of F. pedrosoi with purified antibodies against melanin inhibited fungal growth in vitro. The interaction of F. pedrosoi with phagocytes in the presence of melanin resulted in higher levels of fungal internalization and destruction by host cells, which was accompanied by greater degrees of oxidative burst. Taken together, these results indicate that melanin from F. pedrosoi is an immunologically active fungal structure that activates humoral and cellular responses that could help the control of chromoblastomycosis by host defenses.

Indexed as

AnimalsAntibodies, FungalAscomycotaChromoblastomycosisHumansMacrophages, PeritonealMaleMelaninsMiceMice, Inbred BALB CNeutrophilsPhagocytosisAntibodies, FungalMelanins

Identifiers

PMID14688100
PMCPMC344007
OpenAlexW2134352954

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.