Antifungal Susceptibility Tests and the cyp51 Mutant Strains among Clinical Aspergillus fumigatus Isolates from Korean Multicenters

We investigated the antifungal susceptibilities and the cyp51 mutant strains among Aspergillus fumigatus clinical isolates obtained from 10 university hospitals in Korea. Of the 84 isolates examined, two itraconazole-resistant isolates were found with no amino acid substitution in the cyp51A/cyp51B...

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Main Authors: Eun Jeong Won, Min Young Joo, Dain Lee, Mi-Na Kim, Yeon-Joon Park, Soo Hyun Kim, Myung Geun Shin, Jong Hee Shin
Format: Article
Language:English
Published: Taylor & Francis Group 2020-03-01
Series:Mycobiology
Subjects:
Online Access:http://dx.doi.org/10.1080/12298093.2020.1744955
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author Eun Jeong Won
Min Young Joo
Dain Lee
Mi-Na Kim
Yeon-Joon Park
Soo Hyun Kim
Myung Geun Shin
Jong Hee Shin
author_facet Eun Jeong Won
Min Young Joo
Dain Lee
Mi-Na Kim
Yeon-Joon Park
Soo Hyun Kim
Myung Geun Shin
Jong Hee Shin
author_sort Eun Jeong Won
collection DOAJ
description We investigated the antifungal susceptibilities and the cyp51 mutant strains among Aspergillus fumigatus clinical isolates obtained from 10 university hospitals in Korea. Of the 84 isolates examined, two itraconazole-resistant isolates were found with no amino acid substitution in the cyp51A/cyp51B genes. However, 19 (23.2%) azole-susceptible isolates harbored amino acid substitutions: Nine isolates harbored one to five mutations in cyp51A with high polymorphism, and 11 isolates exhibited the same Q42L mutation in cyp51B. Overall, a low azole resistance rate and high frequency of cyp51A/cyp51B amino acid substitutions were observed in the azole-susceptible A. fumigatus isolates in Korea.
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spelling doaj.art-87dcd97add0149e09e4ed43a30a4b7282022-12-22T03:01:33ZengTaylor & Francis GroupMycobiology1229-80932092-93232020-03-0148214815210.1080/12298093.2020.17449551744955Antifungal Susceptibility Tests and the cyp51 Mutant Strains among Clinical Aspergillus fumigatus Isolates from Korean MulticentersEun Jeong Won0Min Young Joo1Dain Lee2Mi-Na Kim3Yeon-Joon Park4Soo Hyun Kim5Myung Geun Shin6Jong Hee Shin7Chonnam National University Medical SchoolChonnam National University Medical SchoolChonnam National University Medical SchoolUniversity of Ulsan College of Medicine and Asan Medical CenterThe Catholic University of Korea College of MedicineChonnam National University Medical SchoolChonnam National University Medical SchoolChonnam National University Medical SchoolWe investigated the antifungal susceptibilities and the cyp51 mutant strains among Aspergillus fumigatus clinical isolates obtained from 10 university hospitals in Korea. Of the 84 isolates examined, two itraconazole-resistant isolates were found with no amino acid substitution in the cyp51A/cyp51B genes. However, 19 (23.2%) azole-susceptible isolates harbored amino acid substitutions: Nine isolates harbored one to five mutations in cyp51A with high polymorphism, and 11 isolates exhibited the same Q42L mutation in cyp51B. Overall, a low azole resistance rate and high frequency of cyp51A/cyp51B amino acid substitutions were observed in the azole-susceptible A. fumigatus isolates in Korea.http://dx.doi.org/10.1080/12298093.2020.1744955aspergillus fumigatusantifungal susceptibilitycyp51a/cyp51bmulticentre
spellingShingle Eun Jeong Won
Min Young Joo
Dain Lee
Mi-Na Kim
Yeon-Joon Park
Soo Hyun Kim
Myung Geun Shin
Jong Hee Shin
Antifungal Susceptibility Tests and the cyp51 Mutant Strains among Clinical Aspergillus fumigatus Isolates from Korean Multicenters
Mycobiology
aspergillus fumigatus
antifungal susceptibility
cyp51a/cyp51b
multicentre
title Antifungal Susceptibility Tests and the cyp51 Mutant Strains among Clinical Aspergillus fumigatus Isolates from Korean Multicenters
title_full Antifungal Susceptibility Tests and the cyp51 Mutant Strains among Clinical Aspergillus fumigatus Isolates from Korean Multicenters
title_fullStr Antifungal Susceptibility Tests and the cyp51 Mutant Strains among Clinical Aspergillus fumigatus Isolates from Korean Multicenters
title_full_unstemmed Antifungal Susceptibility Tests and the cyp51 Mutant Strains among Clinical Aspergillus fumigatus Isolates from Korean Multicenters
title_short Antifungal Susceptibility Tests and the cyp51 Mutant Strains among Clinical Aspergillus fumigatus Isolates from Korean Multicenters
title_sort antifungal susceptibility tests and the cyp51 mutant strains among clinical aspergillus fumigatus isolates from korean multicenters
topic aspergillus fumigatus
antifungal susceptibility
cyp51a/cyp51b
multicentre
url http://dx.doi.org/10.1080/12298093.2020.1744955
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