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Method-dependent epidemiological cutoff values for detection of triazole resistance in Candida and Aspergillus species for the Sensititre Yeastone colorimetric broth and etest agar diffusion methods

  • A. Espinel-Ingroff*
  • , J. Turnidge
  • , A. Alastruey-Izquierdo
  • , F. Botterel
  • , E. Canton
  • , C. Castro
  • , Y. -C. Chen
  • , Y. Chen
  • , E. Chryssanthou
  • , E. Dannaoui
  • , G. Garcia-Effron
  • , G. M. Gonzalez
  • , N. P. Govender
  • , J. Guinea
  • , S. Kidd
  • , M. Lackner
  • , C. Lass-Flörl
  • , M. J. Linares-Sicilia
  • , L. López-Soria
  • , R. Magobo
  • T. Pelaez, G. Quindós, M. A. Rodriguez-Iglesia, M. A. Ruiz, F. Sánchez-Reus, Maurizio Sanguinetti, R. Shields, P. Szweda, A. Tortorano, N. L. Wengenack, S. Bramati, C. Cavanna, C. DeLuca, M. Gelmi, A. Grancini, Gianmarco Lombardi, J. Meletiadis, C. E. Negri, M. Passera, J. Peman, A. Prigitano, E. Sala, M. Tejada
*Autore corrispondente per questo lavoro
  • Virginia Commonwealth University
  • University of Adelaide
  • Centro Nacional de Microbiologia
  • Unité de Parasitologie
  • Instituto Investigacion Sanitaria la Fe
  • Hospital Universitario de Valme
  • Public Health Ontario
  • Karolinska Institutet
  • Université de Paris
  • Universidad Nacional del Litoral
  • Universidad Autonoma de Nuevo Leon
  • University of the Witwatersrand
  • Hospital General Universitario Gregorio Marañon
  • National Mycology Reference Centre
  • Innsbruck Medical University
  • University of Córdoba
  • Hospital de Cruces
  • Hospital Universitario Central de Asturias
  • University of the Basque Country
  • University of Cádiz
  • Instituto de Investigación Sanitaria Aragón (IISA)
  • Hematology, Hospital Santa Creu i Sant Pau
  • University of Pittsburgh
  • Gdańsk University of Technology
  • University of Milan
  • Mayo Clinic Rochester, MN
  • Azienda Ospedaliera San Gerardo Monza
  • IRCCS Fondazione Policlinico San Matteo - Pavia
  • IRCCS Istituto Clinico Humanitas - Rozzano (Milano)
  • Spedali Civili Di Brescia
  • IRCCS Fondazione Ca'Granda – Ospedale Maggiore Policlinico - Milano
  • National and Kapodistrian University of Athens
  • Universidade Federal de São Paulo
  • ASST Papa Giovanni XXIII
  • Hospital Universitario La Fe
  • ASST Lariana
  • IRCCS Policlinico San Donato

Risultato della ricerca: Contributo in rivistaArticolo

Abstract

Although the Sensititre Yeast-One (SYO) and Etest methods are widely utilized, interpretive criteria are not available for triazole susceptibility testing of Candida or Aspergillus species. We collected fluconazole, itraconazole, posaconazole, and voriconazole SYO and Etest MICs from 39 laboratories representing all continents for (method/agent-dependent) 11,171 Candida albicans, 215 C. dubliniensis, 4,418 C. glabrata species complex, 157 C. guilliermondii (Meyerozyma guilliermondii), 676 C. krusei (Pichia kudriavzevii), 298 C. lusitaniae (Clavispora lusitaniae), 911 C. parapsilosis sensu stricto, 3,691 C. parapsilosis species complex, 36 C. metapsilosis, 110 C. orthopsilosis, 1,854 C. tropicalis, 244 Saccharomyces cerevisiae, 1,409 Aspergillus fumigatus, 389 A. flavus, 130 A. nidulans, 233 A. Niger, and 302 A. terreus complex isolates. SYO/Etest MICs for 282 confirmed non-wild-type (non-WT) isolates were included: ERG11 (C. albicans), ERG11 and MRR1 (C. parapsilosis), cyp51A (A. fumigatus), and CDR2 and CDR1 overexpression (C. albicans and C. glabrata, respectively). Interlaboratory modal agreement was superior by SYO for yeast species and by the Etest for Aspergillus spp. Distributions fulfilling CLSI criteria for epidemiological cutoff value (ECV) definition were pooled, and we proposed SYO ECVs for S. cerevisiae and 9 yeast and 3 Aspergillus species and Etest ECVs for 5 yeast and 4 Aspergillus species. The posaconazole SYO ECV of 0.06 g/ml for C. albicans and the Etest itraconazole ECV of 2 g/ml for A. fumigatus were the best predictors of non-WT isolates. These findings support the need for method-dependent ECVs, as, overall, the SYO appears to perform better for susceptibility testing of yeast species and the Etest appears to perform better for susceptibility testing of Aspergillus spp. Further evaluations should be conducted with more Candida mutants.
Lingua originaleInglese
pagine (da-a)N/A-N/A
RivistaAntimicrobial Agents and Chemotherapy
Volume63
Numero di pubblicazione1
DOI
Stato di pubblicazionePubblicato - 2019

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Questo processo contribuisce al raggiungimento dei seguenti obiettivi di sviluppo sostenibile

  1. SDG 3 - Salute e benessere
    SDG 3 Salute e benessere

All Science Journal Classification (ASJC) codes

  • Farmacologia
  • Farmacologia (medica)
  • Malattie Infettive

Keywords

  • Antifungal resistance
  • Aspergillus spp
  • Candida albicans
  • Candida glabrata
  • Etest MICs for fungal mutants
  • Etest method ECVs
  • Infectious Diseases
  • Pharmacology
  • Pharmacology (medical)
  • SYO MICs for fungal mutants
  • SYO method ECVs
  • Triazole ECVs

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