Cited by 98Antifungal resistance and susceptibilityFungal Infections and StudiesYeasts and Rust Fungi Studies

Effects of Caspofungin against Candida guilliermondii and Candida parapsilosis

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Barchiesi, Francesco, Spreghini, Elisabetta, Tomassetti, Serena, Della Vittoria, Agnese, Arzeni, Daniela, Manso, Esther, Scalise, Giorgio·2006·Antimicrobial Agents and Chemotherapy

Abstract

The in vitro activity of caspofungin (CAS) was investigated against 28 yeast isolates belonging to Candida albicans ( n = 5), Candida guilliermondii ( n = 10), and Candida parapsilosis ( n = 13). CAS MICs obtained by broth dilution and Etest methods clearly showed a rank order of susceptibility to the echinocandin compound with C. albicans > C. parapsilosis > C. guilliermondii . Similarly, time-kill assays performed on selected isolates showed that CAS was fungistatic against C. albicans and C. parapsilosis , while it did not exert any activity against C. guilliermondii . In a murine model of systemic candidiasis, CAS given at doses as low as 1 mg/kg of body weight/day was effective at reducing the kidney burden of mice infected with either C. albicans or C. guilliermondii isolates. Depending on the isolate tested, mice infected with C. parapsilosis responded to CAS given at 1 and/or 5 mg/kg/day. However, the overall CFU reduction for C. guilliermondii and C. parapsilosis was approximately 100-fold less than that for C. albicans . Our study shows that CAS was active in experimental systemic candidiasis due to C. guilliermondii and C. parapsilosis , but this activity required relatively high drug dosages.

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  • Intrinsic FKS mutations result in elevated MIC levels but lower level of reduced β-1,3-d-glucan synthase sensitivity compared with acquired FKS mutations.

    “intrinsic FKS mutations, also resulting in elevated MIC levels (but in a lower level of reduced β-1,3-d-glucan synthase sensitivity when compared with the acquired FKS mutations) [118,120,121].”

    From Candida glabrata Biofilms: How Far Have We Come? (2017) · cites this paper as [120]

  • Application of Etest agar-based technology to determine amphotericin B MICs in a broad antifungal surveillance program has identified specific differences in the susceptibilities of the various species of Candida to amphotericin B.

    “Application of the Etest agar-based technology to determine amphotericin B MICs in the context of a broad antifungal surveillance program has identified specific differences in the susceptibilities of the various species of Candida to this former 'gold standard' antifungal agent (Table 10) (20, 92, 113, 136, 202, 207, 212, 215, 323).”
  • Blignaut and colleagues reported that among the five distinct DNA clades of C. albicans, the South African clade contained a significantly higher proportion of amphotericin B-resistant (MIC ≥2 μg/ml) isolates (16% of 179 isolates) than did the other four clades (5.4% of 167 isolates).

    “Recently, Blignaut and colleagues (20) reported that among the five distinct DNA clades of C. albicans , the South African clade (clade SA) contained a significantly higher proportion of amphotericin B-resistant (MIC ≥ 2 𝛍 g/ ml) isolates (16% of 179 isolates) than did the other four clades (5.4% of 167 isolates).”

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Authors
Barchiesi, F., Spreghini, E., Tomassetti, S., Della Vittoria, A., Arzeni, D., Manso, E., & Scalise, G.
Affiliations
  • Marche Polytechnic University (IT)
  • Istituto di Malattie Infettive e Medicina Pubblica, Università Politecnica delle Marche
  • Azienda Ospedaliero-Universitaria delle Marche (IT)
Corresponding author
Barchiesi, Francesco
Venue
Antimicrobial Agents and Chemotherapy
Published
2006-08
Volume
50
Issue
8
Pages
2719-2727
ISSN
  • 0066-4804 (ISSN-L)
  • 1098-6596
OpenAlex
W2136899085
Cited by
98
References
24
Citations by year
2026: 1 · 2025: 1 · 2024: 2 · 2023: 2 · 2022: 3 · 2021: 2 · 2020: 4 · 2019: 4 · 2018: 3 · 2017: 5 · 2016: 4 · 2015: 4 · 2014: 10 · 2013: 4 · 2012: 7
FWCI
5.58
Type
journal article
Language
en
Open access
Locations
  • Antimicrobial Agents and Chemotherapy (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed (publishedVersion)
  • Università Politecnica delle Marche (Università Politecnica delle Marche) (submittedVersion)
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 › Yeasts and Rust Fungi Studies
Keywords
caspofungin, echinocandins, Candida guilliermondii, Candida parapsilosis, Candida albicans, systemic candidiasis, antifungal susceptibility, fungistatic activity, time-kill kinetics, mouse model, kidney fungal burden, minimum inhibitory concentration
MeSH terms
Caspofungin, Animals, Antifungal Agents, Candida, Candida albicans, Candidiasis, Dose-Response Relationship, Drug, Humans, Injections, Intravenous, Male, Mice, Inbred Strains, Microbial Sensitivity Tests, Peptides, Cyclic, Species Specificity, Time Factors, Colony Count, Microbial, Mice, Echinocandins, Lipopeptides, In Vitro Techniques

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