Cutibacterium acnes of single locus sequence type clade C strains exhibit low susceptibility to benzoyl peroxide
Background: Cutibacterium acnes plays an important role in acne pathogenesis. Benzoyl peroxide (BPO) exhibits antimicrobial activity against C. acnes. We previously found that no clade C strains, as determined by single locus sequence typing (SLST), were found before the introduction of BPO in Japan...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-06-01
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| Series: | Journal of Global Antimicrobial Resistance |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S221371652500102X |
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| Summary: | Background: Cutibacterium acnes plays an important role in acne pathogenesis. Benzoyl peroxide (BPO) exhibits antimicrobial activity against C. acnes. We previously found that no clade C strains, as determined by single locus sequence typing (SLST), were found before the introduction of BPO in Japan. However, the prevalence of clade C strains increased after its introduction. In this study, we evaluated the susceptibility of C. acnes strains, belonging to different SLST clades, to BPO. Methods: Forty clinical C. acnes isolates from four distinct SLST clades obtained from acne lesions were analyzed. The susceptibility of C. acnes isolates to BPO was evaluated using a time-kill kinetic assay. Results: C. acnes clade C strains were less susceptible to BPO. In addition, the bactericidal effect of BPO was time-dependent across all clade strains. Conclusions: An increase in C. acnes clade C strains may diminish the efficacy of acne treatment. Therefore, the trends in the prevalence of C. acnes clade C strains should be monitored. |
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| ISSN: | 2213-7165 |