Evidence map›Paper›PMID 27031728›Full record

ArticlePloS one2016

Melanins Protect Sporothrix brasiliensis and Sporothrix schenckii from the Antifungal Effects of Terbinafine.

Rodrigo Almeida-Paes, Maria Helena Galdino Figueiredo-Carvalho, Fábio Brito-Santos, Fernando Almeida-Silva, Manoel Marques Evangelista Oliveira, Rosely Maria Zancopé-Oliveira

Abstract read
In one paragraph

Article in PloS one, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.

0numbers the graph read from it
0cells of the map it votes in
43citing 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

43 citing papers in PubMed.

  1. Article
  2. Antibiofilm activity of terbinafine, itraconazole and their combination against Sporothrix brasiliensis yeast-like form's biofilms.Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2026
    Article
  3. Genetic Manipulation inJournal of fungi (Basel, Switzerland) · 2026
    Review
  4. Antimicrobial peptides from arthropod venoms exhibit activity againstThe journal of venomous animals and toxins including tropical diseases · 2026
    Article
  5. Current Insights intoJournal of fungi (Basel, Switzerland) · 2025
    Article
  6. In vitro effects of the new antifungal compound manogepix (APX001) against the three most clinically relevant species of Sporothrix.Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2025
    Article
  7. Article
  8. Novel Insights into Sporotrichosis and Diabetes.Journal of fungi (Basel, Switzerland) · 2024
    Review
  9. Article
  10. Antifungal Activity of Chitosan againstJournal of fungi (Basel, Switzerland) · 2023
    Article
  11. Article
  12. Article
  13. Fungal Glycosidases inJournal of fungi (Basel, Switzerland) · 2023
    Review
  14. Article
  15. Article
  16. Current Progress inJournal of fungi (Basel, Switzerland) · 2023
    Review
  17. Review
  18. Keratinocyte Response to Infection withJournal of fungi (Basel, Switzerland) · 2022
    Article
  19. Virulence Factors ofJournal of fungi (Basel, Switzerland) · 2022
    Review
  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

6 authors.

Rodrigo Almeida-PaesLaboratório de Micologia, Instituto Nacional de Infectologia Evandro Chagas, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil.
Maria Helena Galdino Figueiredo-CarvalhoLaboratório de Micologia, Instituto Nacional de Infectologia Evandro Chagas, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil.
Fábio Brito-SantosLaboratório de Micologia, Instituto Nacional de Infectologia Evandro Chagas, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil.
Fernando Almeida-SilvaLaboratório de Micologia, Instituto Nacional de Infectologia Evandro Chagas, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil.
Manoel Marques Evangelista OliveiraLaboratório de Micologia, Instituto Nacional de Infectologia Evandro Chagas, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil.
Rosely Maria Zancopé-OliveiraLaboratório de Micologia, Instituto Nacional de Infectologia Evandro Chagas, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Terbinafine is a recommended therapeutic alternative for patients with sporotrichosis who cannot use itraconazole due to drug interactions or side effects. Melanins are involved in resistance to antifungal drugs and Sporothrix species produce three different types of melanin. Therefore, in this study we evaluated whether Sporothrix melanins impact the efficacy of antifungal drugs. Minimal inhibitory concentrations (MIC) and minimal fungicidal concentrations (MFC) of two Sporothrix brasiliensis and four Sporothrix schenckii strains grown in the presence of the melanin precursors L-DOPA and L-tyrosine were similar to the MIC determined by the CLSI standard protocol for S. schenckii susceptibility to amphotericin B, ketoconazole, itraconazole or terbinafine. When MICs were determined in the presence of inhibitors to three pathways of melanin synthesis, we observed, in four strains, an increase in terbinafine susceptibility in the presence of tricyclazole, a DHN-melanin inhibitor. In addition, one S. schenckii strain grown in the presence of L-DOPA had a higher MFC value when compared to the control. Growth curves in presence of 2×MIC concentrations of terbinafine showed that pyomelanin and, to a lesser extent, eumelanin were able to protect the fungi against the fungicidal effect of this antifungal drug. Our results suggest that melanin protects the major pathogenic species of the Sporothrix complex from the effects of terbinafine and that the development of new antifungal drugs targeting melanin synthesis may improve sporotrichosis therapies.

Indexed as

Antifungal AgentsHumansMelaninsNaphthalenesSporothrixSporotrichosisTerbinafineThiazolesAntifungal AgentseumelaninMelaninsNaphthalenespyomelaninTerbinafineThiazolestricyclazole

Identifiers

PMID27031728
PMCPMC4816517

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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.