Cited by 21Antifungal resistance and susceptibilityFungal Infections and StudiesCancer, Lipids, and Metabolism

Statins as antifungal agents

Open access
Galgóczy, László·2011·World Journal of Clinical Infectious Diseases

Abstract

Fungal infections are increasing and their treatment is difficult, because the most widely used antifungal drugs are relatively toxic and have serious side effects.Therefore, interest has focused on safely applicable and clinically introduced non-antifungal drugs, which have potent antifungal activity.Statins were originally used as cholesterol lowering agents in human therapy,

AI snapshot

Written from the paper’s full text.

TL;DR

Statins, originally cholesterol-lowering drugs, show in vitro antifungal activity against yeasts and filamentous fungi and can act additively or synergistically with antifungal agents. Because their MICs are much higher (about 1 order of magnitude) than maximum achievable serum concentrations, they are proposed only as combination therapy, with in vivo validation still needed.

Key findings

  • Statins exhibit fungicidal or fungistatic effects against yeasts in a dose-dependent manner; SIM displayed the strongest anti-yeast activity, followed by FLV, ATO, ROS, and LOV, while PRA was completely ineffective. Against filamentous fungi, FLV was strongest, followed by ROS, SIM, LOV, and ATO; PRA was also ineffective.
  • Statin MICs are much higher (about 1 order of magnitude) than their maximum achievable concentrations in human serum, so statins are not applicable as single antifungal agents for invasive fungal infections.
  • Statins interact additively or synergistically with antifungal agents, including azoles, amphotericin B, nystatin, primycin, caspofungin, and voriconazole, against Candida, Cryptococcus, Zygomycetes, and Aspergillus species; terbinafine plus FLV against Pythium insidiosum was antagonistic.
  • Clinically, a hypothesis that statins may reduce invasive mould infection in diabetes patients is supported by in vitro data, but a recent retrospective case-control study suggested statins may not decrease risk of invasive mould infection.

Methods

  • Narrative review focusing on the antifungal activity of statins alone and in combination with antifungal and non-antifungal drugs, and their possible application in clinical therapy.
  • Data summarized include published in vitro studies against yeasts and filamentous fungi, with MIC values presented in Tables 1 and 2 and drug-interaction results in Tables 3 and 4.
  • Main analysis is a qualitative synthesis of reported MIC values and interaction classifications (synergy, additive, no interaction, antagonism); no primary experiments or systematic search methodology are described.

Limitations

  • The paper states that statin MICs exceed achievable serum levels, so clinical use is possible only in combination with antifungal agents; further in vivo animal model experiments are needed to evaluate practical efficiency and side effects.
  • The paper notes that combining statins with antifungals metabolized by the same CYP450 isoenzymes is contraindicated because of potential serious adverse effects.
  • Evident from the text: this is a narrative review without stated systematic search or quality assessment, and many table entries are “ND” or formatting-corrupted, limiting quantitative certainty.

Model-written summary. Check it against the paper before relying on it.

Integrity signals

Registry

Crossref · 10.5495/wjcid.v1.i1.4

Cites

45 of 45 references verified0 citation errors · 0 not checkable

Statistics

Nothing to recompute.

Claims the paper makes

0 of 68 cited sources checked · 0 supported · 0 flagged

  • Premisecitation

    LOV does not cause apoptotic cell death in yeasts compared to filamentous fungi.

    “LOV does not cause apoptotic cell death in yeasts compared to filamentous fungi [24,31] .”
    Quote in the paperNot a substantial claim0 of 2 sources checked
    • cites [24] source

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    • cites [31] source

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  • Premisecitation

    Supplementation with ergosterol or cholesterol reduced the antifungal effect of statins.

    “This assumption is confirmed by the observation that supplementation with ergosterol or cholesterol reduced the antifungal effect of statins [20,25,26] , and that C. albicans transformed from the yeast cell form to the”
    Quote in the paperSubstantial claim0 of 3 sources checked
    • cites [20] Lorenz RT, Parks LW. Effects of lovastatin (mevinolin) on sterol levels and on activity of azoles in Saccharomyces cerevisiae. Antimicrob Agents Chemother 1990;34:1660-1665. source

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    • cites [25] source

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    • cites [26] source

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  • Premisecitation

    C. albicans transformed from the yeast cell form to the pseudomycelial form upon exposure to LOV.

    “pseudomycelial form upon exposure to LOV [24] .”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [24] source

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  • Premisecitation

    Statins act as inhibitors of some G-protein actions and Ras or Ras-like signaling, affecting several important bioprocesses.

    “Thus, statins act as inhibitors of some G-protein actions and Ras or Ras-like signaling, which affect several important bioprocesses [15] .”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites [15] source

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  • Premisecitation

    The antifungal activity of FLV is dependent on the pH of the medium.

    “The antifungal activity of FLV is dependent on the pH of the medium [27] .”
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    • cites [27] source

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  • May combine two claims. 16
  • Classified as probably not a substantial claim. 2
  • May combine two claims.

    Premisecitation

    Ergosterol is a main constituent of the lipid layer of fungal plasma membranes, and the antifungal effect might arise from decreased membrane fluidity in yeast cells.

    “Ergosterol is a main constituent of the lipid layer of fungal plasma membranes, and the antifungal effect might arise from decreased membrane fluidity in the yeast cells [24] .”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites [24] source

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  • May combine two claims.

    Premisecitation

    The various statins exhibit different antifungal effects against yeasts; SIM displays the strongest activity, followed by FLV, ATO, ROS, and LOV, while PRA is completely ineffective.

    “These studies demonstrated that the various statins exhibit different antifungal effects against yeasts.SIM displayed the strongest antifungal activity, followed by FLV, ATO, ROS, and LOV.PRA proved to be completely ineffective against them.”
    Quote in the paperSubstantial claim0 of 3 sources checked
    • cites [18] source

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    • cites [20] Lorenz RT, Parks LW. Effects of lovastatin (mevinolin) on sterol levels and on activity of azoles in Saccharomyces cerevisiae. Antimicrob Agents Chemother 1990;34:1660-1665. source

      Not checked in the free run.

    • cites [21] Chin NX, Weitzman I, Della-Latta P. In vitro activity of fluvastatin, a cholesterol-lowering agent, and synergy with flucanazole and itraconazole against Candida species and Cryptococcus neoformans. Antimicrob Agents Chemother 1997;41:850-852. source

      Not checked in the free run.

  • May combine two claims.

    Premisecitation

    Statins are competitive inhibitors of HMG-CoA reductase, which catalyses the conversion of HMG-CoA to mevalonate, a rate-limiting step in the isoprenoid biosynthetic pathway involved in cholesterol synthesis in humans and ergosterol synthesis in fungi.

    “Statins are competitive inhibitors of HMG-CoA reductase, which catalyses the conversion of HMG-CoA to mevalonate, a rate-limiting step in the isoprenoid biosynthetic pathway, which is involved in the synthesis of cholesterol in humans and ergosterol in fungi [10] .”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites [10] source

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  • May combine two claims.

    Premisecitation

    The different fungi are not equally sensitive to statins in vitro; SIM exhibits the strongest antifungal activity against yeasts compared to filamentous fungi, whereas the reverse is true for FLV.

    “The different fungi are not equally sensitive to statins in vitro, e.g.SIM exhibits the strongest antifungal activity against yeasts compared to filamentous fungi, whereas the reverse is true for FLV [18] .”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [18] source

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    Premisecitation

    Natural statins (e.g. SIM and LOV) mainly exert antifungal activity in their active metabolite forms (hydrolysis of the lactone ring at pH 10) and are less effective as pro-drugs.

    “The natural statins (e.g.SIM and LOV) mainly effect their antifungal activity in their active metabolite forms (hydrolysis of the lactone ring at pH 10), and they proved to be less effective as pro-drugs [18,19] .”
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  • May combine two claims.

    Premisecitation

    The growth inhibition effect of statins on yeast cells is related to decreasing ergosterol level, which occurs because of inactivation of HMG-CoA reductase by statins in the isoprenoid biosynthetic pathway.

    “The growth inhibition effect of statins on yeast cells is related to the decreasing ergosterol level, which occurs because of the inactivation of HMG-CoA reductase inactivation by statins in the isoprenoid biosynthetic pathway [16] .”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites [16] source

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  • May combine two claims.

    Premisecitation

    Statins have effective antifungal potential against both yeast and filamentous fungi and can be combined with clinically used antifungal agents.

    “Statins are interesting from this respect, as they have effective antifungal potential against both yeast and filamentous fungi; furthermore, they can be combined with clinically used antifungal agents.”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites [18] source

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  • May combine two claims.

    Premisecitation

    Interactions were not detected between FLV and suramin if the strain was insensitive to both compounds, but synergistic and additive interactions were observed if the fungus was sensitive to FLV and insensitive to suramin; antagonistic interaction was observed if the fungus was sensitive to both drugs.

    “Interactions were not detected between FLV and suramin if the investigated strain proved to be insensitive to both compounds, but synergistic and additive interactions could be observed if the fungus was sensitive to FLV and insensitive to suramin.Antagonistic interaction was observed if the fungus was sensitive to both drugs [35] .”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites [35] source

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  • Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

    Premisecitation

    As a consequence of pleiotropic beneficial effects of statins beyond lipid lowering, there is decreased risk of chronic renal failure and improved endothelial dysfunction.

    “As a consequence of the pleiotropic beneficial effects of statins beyond their lipid lowering attributes, there is a decreased risk of chronic renal failure and an improved endothelial dysfunction) [16] .”
    Quote in the paperNot a substantial claim0 of 1 sources checked
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    Interpretationcitation

    Statins should be promising agents in clinical practice because they can act additively or synergistically with antifungal agents, allowing substantial decreases in therapeutic concentrations and side effects.

    “All the same, they should be promising agents in clinical practice because they can act additively or synergistically with antifungal agents, allowing substantial decreases in their therapeutic concentrations and their side effects [45] .”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites [45] source

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    • Rests on an assumption: In vitro antifungal activity and drug interactions of statins are predictive of clinical efficacy in treating invasive fungal infections.
  • May combine two claims.

    Premisecitation

    Statins can interact synergistically with azole antifungal agents against yeasts and can reduce their growth significantly.

    “Statins can interact synergistically with azole antifungal agents against yeasts and can reduce their growth significantly.”
    Quote in the paperSubstantial claim0 of 2 sources checked
    • cites [21] Chin NX, Weitzman I, Della-Latta P. In vitro activity of fluvastatin, a cholesterol-lowering agent, and synergy with flucanazole and itraconazole against Candida species and Cryptococcus neoformans. Antimicrob Agents Chemother 1997;41:850-852. source

      Not checked in the free run.

    • cites [22] source

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  • Probably not a substantial claim: may not pass S2 (checkable).

    Interpretationreasoning

    Such combinations would be advantageous as the basis of a less toxic antifungal therapy.

    “Such combinations would be advantageous as the basis of a less toxic antifungal therapy [3] .”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [3] source

      Not checked in the free run.

    • Rests on an assumption: In vitro antifungal activity and drug interactions of statins are predictive of clinical efficacy in treating invasive fungal infections.
  • May combine two claims.

    Premisecitation

    The activities of statin-PAF combinations varied and depended on the activities of the components applied separately; when a strain was resistant to one component, significant interactions could not be detected, and when sensitive to both, synergistic or additive interactions were detected.

    “The activities of the statin-PAF combinations on the different strains varied, and depended on the activities of the components applied separately.When a strain was resistant to one of the components, significant interactions could not be detected.On the other hand, when a strain was sensitive to both types of antifungal agents, synergistic or additive interactions were detected [34] .”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites [34] source

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  • May combine two claims.

    Premisecitation

    Synergistic interaction was observed between primycin and FLV, LOV and SIM, and additive interaction between AMB and ATO or SIM in Paecilomyces variotii.

    “Synergistic interaction was observed between PN and FLV, LOV and SIM, and an additive interaction was observed between AMB and ATO or SIM in the case of Paecilomyces variotii [18,28] .”
    Quote in the paperSubstantial claim0 of 2 sources checked
    • cites [18] source

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    • cites [28] Nyilasi I, Kocsubé S, Galgóczy L, Papp T, Pesti M, Vágvölgyi C. Effect of different statins on the antifungal activity of polyene antimycotics. Acta Biol Szeged 2010;54:33-36.

      Not checked in the free run.

  • May combine two claims.

    Premisecitation

    Additive interactions were observed between AMB and ATO and ROS, and between nystatin and FLV, LOV, ROS, and SIM in C. albicans and C. glabrata.

    “Additive interactions were observed between AMB and ATO and ROS, and between nystatin (NYS) and FLV, LOV, ROS, and SIM in the case of C. albicans and C. glabrata [28] .”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites [28] Nyilasi I, Kocsubé S, Galgóczy L, Papp T, Pesti M, Vágvölgyi C. Effect of different statins on the antifungal activity of polyene antimycotics. Acta Biol Szeged 2010;54:33-36.

      Not checked in the free run.

  • May combine two claims.

    Interpretationcitation

    Administration of statins together with antifungals predominantly metabolized by the same CYP450 isoenzymes in the liver is contraindicated, because such drug interactions may cause serious adverse effects.

    “Importantly, the administration of statins together with antifungals that are predominantly metabolized by the same CYP450 isoenzymes in the liver is contraindicated, because such drug interactions with the CYP system may cause serious adverse effects [45] .”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites [45] source

      Not checked in the free run.

    • Rests on an assumption: Statins are safely applicable in humans at doses relevant to antifungal combination therapy.
  • May combine two claims.

    Premisecitation

    Fluconazole with LOV, and fluconazole or itraconazole with FLV, interact synergistically on the growth of Candida species.

    “Fluconazole (FCZ) with LOV, and FCZ or itraconazole (ITZ) with FLV, interact synergistically on the growth of Candida species [21,22] ;”
    Quote in the paperSubstantial claim0 of 2 sources checked
    • cites [21] Chin NX, Weitzman I, Della-Latta P. In vitro activity of fluvastatin, a cholesterol-lowering agent, and synergy with flucanazole and itraconazole against Candida species and Cryptococcus neoformans. Antimicrob Agents Chemother 1997;41:850-852. source

      Not checked in the free run.

    • cites [22] source

      Not checked in the free run.

17 of 17
  • The paper relies on this without support.

    The incidence of invasive fungal infections is increasing.

    “The incidence of invasive fungal infections (IFIs) is increasing because of the growing number of immunocompromised hosts and the occurrence of antibiotic resistant strains.”
  • The paper relies on this without support.

    The most widely applied antifungal drugs for invasive fungal infections are relatively toxic and have serious side effects.

    “Treatment of IFIs is difficult, because the most widely applied antifungal drugs [e.g.amphotericin B (AMB)] for treatment of such disease are relatively toxic and have serious side effects.”
  • The authors state this as an assumption.

    The different levels of fungal resistance to statins are connected with different copy numbers of the HMG-CoA reductase gene (hmgR) in filamentous species.

    “It is hypothesized that the resistance is connected with the different copy numbers of the HMG-CoA reductase gene (hmgR) in the case of filamentous species.This assumption is supported by the observation of Lukács et al [39] .”
  • The paper relies on this without support.

    In vitro antifungal activity and drug interactions of statins are predictive of clinical efficacy in treating invasive fungal infections.

    “The observed in vitro antifungal activities of statins and their combinations with clinically antifungal agents would create new therapies for the treatment of IFI, without serious side effects.”
  • The paper relies on this without support.

    Statins are safely applicable in humans at doses relevant to antifungal combination therapy.

    “These synergistic combinations establish a basis for a new safely applicable therapy.”
5 of 5

Cites

Flagged first, then by citations

Research works printed but not linked: 1

  1. Buemi M, Floccari F, Nostro L, Campo S, Caccamo C, Sturiale A, Aloisi C, Giacobbe MS, Frisina N. Statins in the prevention of cardiovascular events in patients with renal failure. Cardiovasc Hematol Disord Drug Targets 2007;7:7-13.

Cited by

Sorted by citations

Authors
Galgóczy, L.
Affiliations
Ben-Gurion University of the Negev (IL)
Corresponding author
Galgóczy, László
Venue
World Journal of Clinical Infectious Diseases
Published
2011
Volume
1
Issue
1
Pages
4
ISSN
2220-3176 (ISSN-L)
OpenAlex
W2329049973
Cited by
21
References
45
Citations by year
2025: 1 · 2024: 1 · 2023: 1 · 2022: 3 · 2020: 3 · 2019: 1 · 2018: 2 · 2017: 2 · 2015: 3 · 2014: 2 · 2013: 2
FWCI
0.86
Type
journal article
Language
en
Open access
Licence
cc-by-nc
Locations
  • World Journal of Clinical Infectious Diseases (publishedVersion, cc-by-nc)
  • SZTE Publicatio Repozitórium (University of Szeged) (acceptedVersion, other-oa)
Funders
Hungarian Scientific Research Fund
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 › Cancer Research › Cancer, Lipids, and Metabolism
Keywords
statins, antifungal activity, fungal infection, drug repurposing, antifungal toxicity

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