Cited by 121Antifungal resistance and susceptibilityFungal Infections and StudiesFungal and yeast genetics research

Lovastatin Has Significant Activity against Zygomycetes and Interacts Synergistically with Voriconazole

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Chamilos, Georgios, Lewis, Russell E., Kontoyiannis, Dimitrios P.·2006·Antimicrobial Agents and Chemotherapy

Abstract

Zygomycetes are emerging opportunistic molds resistant to most conventional antifungals. We evaluated the in vitro activity of lovastatin (LOV), a 3-hydroxy-3-methylglutaryl-coenzyme A reductase inhibitor, against seven clinical isolates of Zygomycetes by using standard microdilution methods in three different media, disk diffusion testing, and viability dye staining. To further study the in vivo efficacy of LOV against zygomycetes, we developed a Drosophila melanogaster model of zygomycosis. In different experiments, groups of Toll-deficient ( Tl ) flies fed LOV-containing food were subsequently injected with two representative Zygomycetes isolates ( Mucor and Rhizopus spp.). Finally, we examined the effects of LOV on voriconazole (VRC) activity against zygomycetes in vitro by checkerboard dilution, Epsilometer test-based methods, and bis-(1,3-dibutylbarbituric acid) trimethine oxonol staining and in vivo in Tl flies fed food containing LOV plus VRC and infected with zygomycetes. LOV exhibited significant, medium, and strain-independent fungicidal activity against all Zygomycetes isolates in vitro by all testing methods (MIC 50 , 48.0 μg/ml; 50% minimal fungicidal concentration, 56.0 μg/ml; 50% effective concentration, 29.4 μg/ml [6.6 to 38.9 μg/ml]). Tl flies fed LOV-containing food and infected with Mucor had a significantly better 6-day survival rate than did infected Tl flies fed regular food ( P = 0.0005). LOV displayed in vitro synergy with VRC against all Zygomycetes isolates (fractional inhibitory concentration index, 0.104 to 0.290) by all methods used. LOV also displayed synergy with VRC in the Drosophila model of zygomycosis ( P < 0.01). LOV is significantly active against zygomycetes and synergizes with triazoles inherently resistant to them, such as VRC. The clinical significance of these findings needs to be further explored.

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Crossref · 10.1128/aac.50.1.96-103.2006

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  • The obtained results are consistent with previous studies, which mentioned that there were synergistic interactions between statins and azole drugs against Candida spp. Saccharomyces cerevisiae and different filamentous fungi.

    “The obtained results are consistent with previous studies, which mentioned that there were synergistic interactions between statins and azole drugs against Candida spp. Saccharomyces cerevisiae and different filamentous fungi (Lorenz and Parks 1990; Chamilos et al. 2006; Nyilasi et al. 2010).”

    From In vitro study on the potential fungicidal effects of atorvastatin in combination with some azole drugs against multidrug resistant Candida albicans (2021) · cites this paper as Chamilos et al. 2006

    The Discussion reports statin–azole synergy against Candida and finds lovastatin–voriconazole synergy against the filamentous Zygomycetes tested. The Abstract mentions statin activity against Saccharomyces cerevisiae, but does not say the statin and an azole acted synergistically against it. Page numbers are not supplied for these passages. (LLM, conf=0.88)

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  • The synergism between ATO and azole drugs might be attributed to the combined action of these drugs in reducing fungal ergosterol synthesis, which led to increasing cell membrane permeability and increasing the penetration of azoles in the fungal cell.

    “The synergism between ATO and azole drugs might be attributed to the combined action of these drugs in reducing fungal ergosterol synthesis, which led to increasing cell membrane permeability and increasing the penetration of azoles in the fungal cell (Chamilos et al. 2006; Nyilasi et al. 2010; Cabral et al. 2013; Lima et al. 2019).”

    From In vitro study on the potential fungicidal effects of atorvastatin in combination with some azole drugs against multidrug resistant Candida albicans (2021) · cites this paper as Chamilos et al. 2006

    The Discussion reports synergy between lovastatin and voriconazole and identifies sequential steps in ergosterol biosynthesis that statins and azoles inhibit. It calls that mechanism plausible rather than established. This paper tested lovastatin, not ATO, and does not report increased membrane permeability or azole penetration into fungal cells (Discussion; page not available). (LLM, conf=0.86)

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  • Research into azole-statin interactions has attracted renewed interest.

    “In this context, studies on the interaction between azoles and statins have gained renewed attention.10,11,27,32,37”

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Authors
Chamilos, G., Lewis, R. E., & Kontoyiannis, D. P.
Affiliations
The University of Texas MD Anderson Cancer Center (US)
Corresponding author
Kontoyiannis, Dimitrios P.
Venue
Antimicrobial Agents and Chemotherapy
Published
2006-01
Volume
50
Issue
1
Pages
96-103
ISSN
  • 0066-4804 (ISSN-L)
  • 1098-6596
OpenAlex
W2121543756
Cited by
121
References
36
Citations by year
2026: 1 · 2025: 2 · 2024: 4 · 2023: 4 · 2022: 8 · 2021: 6 · 2020: 8 · 2019: 11 · 2018: 6 · 2017: 2 · 2016: 5 · 2015: 9 · 2014: 4 · 2013: 6 · 2012: 8
FWCI
2.77
Type
journal article
Language
en
Open access
Locations
  • Antimicrobial Agents and Chemotherapy (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
Pfizer
Topics
  • Health Sciences › Medicine › Infectious Diseases › Antifungal resistance and susceptibility
  • Health Sciences › Medicine › Epidemiology › Fungal Infections and Studies
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Fungal and yeast genetics research
Keywords
lovastatin, mucormycosis, Zygomycetes, voriconazole, drug synergy, statins, Mucor, Rhizopus, Drosophila model, antifungal activity, triazole resistance
MeSH terms
Animals, Antifungal Agents, Drug Synergism, Fungi, Lovastatin, Microbial Sensitivity Tests, Mycoses, Pyrimidines, Triazoles, Voriconazole

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