European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2026
Whole genome sequencing reveals a specific microbiota in subglottic stenosis C. acnes may contribute to inflammation.
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Erlandsson Anders, Chorell Stina, Bäck Anne Tuiskunen, Köhn Linda, Haney Michael, Olofsson Katarina
Аннотация
PURPOSE: Subglottic stenosis (SGS) progressively reduces the airway below the vocal folds. The cause is not known and there is a recurrent need of surgical treatment. Including all phenotypes, SGS affects 1/400 000/yr, with a female dominance. Previous studies have revealed a possible role of the Mycobacterium complex in SGS development. Our hypothesis is that microbiota is associated with the inflammation in SGS, if true it might affect the prevailing treatment options.
METHODS: This prospective cross-sectional study included biopsies from 34 patients with subglottic stenosis, collected between 2020 and 2023. Nucleic acids were extracted from the tissue samples and analysed using whole genome sequencing. Microbial composition was characterized using taxonomic profiling of sequencing data. Species with sufficient read counts were selected for further validation using sequence alignment methods to ensure accuracy of identification.
RESULTS: Using the most comprehensive form of genomic testing currently in clinical use, we present curated and stable data on the presence of Cutibacterium acnes in 28 out of the 34 cases.
CONCLUSION: Cutibacterium acnes may serve as a driver of the inflammation characterizing SGS and should be considered in therapeutically oriented future studies.
METHODS: This prospective cross-sectional study included biopsies from 34 patients with subglottic stenosis, collected between 2020 and 2023. Nucleic acids were extracted from the tissue samples and analysed using whole genome sequencing. Microbial composition was characterized using taxonomic profiling of sequencing data. Species with sufficient read counts were selected for further validation using sequence alignment methods to ensure accuracy of identification.
RESULTS: Using the most comprehensive form of genomic testing currently in clinical use, we present curated and stable data on the presence of Cutibacterium acnes in 28 out of the 34 cases.
CONCLUSION: Cutibacterium acnes may serve as a driver of the inflammation characterizing SGS and should be considered in therapeutically oriented future studies.