Last updated: 2026-04-01
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paediatric-cf-inflammation-citeseq/
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This site presents the code and results of the analyses described in the manuscript: “Single-cell profiling of BAL in preschool cystic fibrosis reveals macrophage dysregulation and ivacaftor-modified inflammatory programs in the early life lung”.
All the code and results of this analysis are available from GitHub at https://github.com/Oshlack/paediatric-cf-inflammation-citeseq. To reproduce the complete analysis follow the instructions on the getting started page.
Aberrant inflammation and structural lung damage occurs early in life for people with cystic fibrosis (CF). Even in the era of CFTR modulators, anti-inflammatory therapy may still be needed to prevent establishment and lifelong consequences of bronchiectasis. In this study, we integrated transcriptome-wide single-cell RNA sequencing data and highly multiplexed surface protein expression to create the largest comprehensive paediatric lower airway atlas of >190,000 cells from 45 bronchoalveolar lavage (BAL) samples resulting in 43 immune and epithelial cell populations, all available for exploration on CELLxGENE. We then investigated inflammatory cell responses in children with CF to show widespread gene expression dysregulation of macrophage populations in the preschool CF lung. This included alterations in pathways associated with TNF and IFN signalling, cholesterol homeostasis, as well as pulmonary fibrosis, that were further altered by the early development of bronchiectasis. We showed that the CFTR modulator ivacaftor restores some of these macrophage-related functional deficits and reduces expression of pathways associated with neutrophil infiltration, however the modulator lumacaftor/ivacaftor did not result in any detectable changes in transcriptional response. This work represents a comprehensive, multi-omic single-cell analysis of BAL from preschool children and the results may inform the future development of anti-inflammatory therapy for children with CF.
Follow the links below to view the different parts of the analysis.
The code in this analysis is covered by the MIT license and the written content on this website is covered by a Creative Commons CC-BY license.
R version: R version 4.3.3 (2024-02-29)
Bioconductor version: 3.18
sessionInfo()
R version 4.3.3 (2024-02-29)
Platform: aarch64-apple-darwin20 (64-bit)
Running under: macOS 15.5
Matrix products: default
BLAS: /Library/Frameworks/R.framework/Versions/4.3-arm64/Resources/lib/libRblas.0.dylib
LAPACK: /Library/Frameworks/R.framework/Versions/4.3-arm64/Resources/lib/libRlapack.dylib; LAPACK version 3.11.0
locale:
[1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8
time zone: Australia/Melbourne
tzcode source: internal
attached base packages:
[1] stats graphics grDevices datasets utils methods base
other attached packages:
[1] workflowr_1.7.1
loaded via a namespace (and not attached):
[1] jsonlite_1.8.8 compiler_4.3.3 BiocManager_1.30.22
[4] renv_1.1.4 promises_1.2.1 Rcpp_1.0.12
[7] stringr_1.5.1 git2r_0.33.0 callr_3.7.3
[10] later_1.3.2 jquerylib_0.1.4 yaml_2.3.8
[13] fastmap_1.1.1 R6_2.5.1 knitr_1.50
[16] tibble_3.2.1 rprojroot_2.0.4 bslib_0.6.1
[19] pillar_1.9.0 rlang_1.1.6 utf8_1.2.4
[22] cachem_1.0.8 stringi_1.8.3 httpuv_1.6.14
[25] xfun_0.52 getPass_0.2-4 fs_1.6.6
[28] sass_0.4.10 cli_3.6.5 magrittr_2.0.3
[31] ps_1.7.6 digest_0.6.34 processx_3.8.3
[34] rstudioapi_0.15.0 lifecycle_1.0.4 vctrs_0.6.5
[37] evaluate_0.23 glue_1.8.0 whisker_0.4.1
[40] fansi_1.0.6 rmarkdown_2.29 httr_1.4.7
[43] tools_4.3.3 pkgconfig_2.0.3 htmltools_0.5.8.1