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2024 ; 11
(1
): ä Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Nasal microRNA signatures for disease severity in infants with respiratory
syncytial virus bronchiolitis: a multicentre prospective study
#MMPMID39089741
Kyo M
; Zhu Z
; Shibata R
; Ooka T
; Mansbach JM
; Harmon B
; Hahn A
; Pérez-Losada M
; Camargo CA
; Hasegawa K
BMJ Open Respir Res
2024[Jul]; 11
(1
): ä PMID39089741
show ga
BACKGROUND: Respiratory syncytial virus (RSV) bronchiolitis contributes to a
large morbidity and mortality burden globally. While emerging evidence suggests
that airway microRNA (miRNA) is involved in the pathobiology of RSV infection,
its role in the disease severity remains unclear. METHODS: In this multicentre
prospective study of infants (aged<1 year) hospitalised for RSV bronchiolitis, we
sequenced the upper airway miRNA and messenger RNA (mRNA) at hospitalisation.
First, we identified differentially expressed miRNAs (DEmiRNAs) associated with
higher bronchiolitis severity-defined by respiratory support (eg, positive
pressure ventilation, high-flow oxygen therapy) use. We also examined the
biological significance of miRNAs through pathway analysis. Second, we identified
differentially expressed mRNAs (DEmRNAs) associated with bronchiolitis severity.
Last, we constructed miRNA-mRNA coexpression networks and determined hub mRNAs by
weighted gene coexpression network analysis (WGCNA). RESULTS: In 493 infants
hospitalised with RSV bronchiolitis, 19 DEmiRNAs were associated with
bronchiolitis severity (eg, miR-27a-3p, miR-26b-5p; false discovery rate<0.10).
The pathway analysis using miRNA data identified 1291 bronchiolitis
severity-related pathways-for example, regulation of cell adhesion mediated by
integrin. Second, 1298 DEmRNAs were associated with bronchiolitis severity. Last,
of these, 190 DEmRNAs were identified as targets of DEmiRNAs and negatively
correlated with DEmiRNAs. By applying WGCNA to DEmRNAs, four disease modules were
significantly associated with bronchiolitis severity-for example, microtubule
anchoring, cell-substrate junction. The hub genes for each of these modules were
also identified-for example, PCM1 for the microtubule anchoring module, LIMS1 for
the cell-substrate junction module. CONCLUSIONS: In infants hospitalised for RSV
bronchiolitis, airway miRNA-mRNA coexpression network contributes to the
pathobiology of bronchiolitis severity.