 |
Journal articles
Respiratory mycobiome and suggestion of inter-kingdom network during acute pulmonary exacerbation in cystic fibrosis
Abstract : Lung infections play a critical role in cystic fibrosis (CF) pathogenesis. CF respiratory tract is now considered to be a polymicrobial niche and advances in high-throughput sequencing allowed to analyze its microbiota and mycobiota. However, no NGS studies until now have characterized both communities during CF pulmonary exacerbation (CFPE). Thirty-three sputa isolated from patients with and without CFPE were used for metagenomic high-throughput sequencing targeting 16S and ITS2 regions of bacterial and fungal rRNA. We built inter-kingdom network and adapted Phy-Lasso method to highlight correlations in compositional data. The decline in respiratory function was associated with a decrease in bacterial diversity. The inter-kingdom network revealed three main clusters organized around Aspergillus, Candida, and Scedosporium genera. Using Phy-Lasso method, we identified Aspergillus and Malassezia as relevantly associated with CFPE, and Scedosporium plus Pseudomonas with a decline in lung function. We corroborated in vitro the cross-domain interactions between Aspergillus and Streptococcus predicted by the correlation network. For the first time, we included documented mycobiome data into a version of the ecological Climax/Attack model that opens new lines of thoughts about the physiopathology of CF lung disease and future perspectives to improve its therapeutic management.
Cited literature [80 references]
https://www.hal.inserm.fr/inserm-02497484
Contributor : Myriam Bodescot Connect in order to contact the contributor
Submitted on : Tuesday, March 3, 2020 - 4:39:12 PM
Last modification on : Wednesday, April 14, 2021 - 12:26:01 PM
Contributor : Myriam Bodescot Connect in order to contact the contributor
Submitted on : Tuesday, March 3, 2020 - 4:39:12 PM
Last modification on : Wednesday, April 14, 2021 - 12:26:01 PM
File
s41598-020-60015-4.pdf
Publication funded by an institution