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2019 ; 9
(1
): 19360
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Allergic inflammation alters the lung microbiome and hinders synergistic
co-infection with H1N1 influenza virus and Streptococcus pneumoniae in C57BL/6
mice
#MMPMID31852944
LeMessurier KS
; Iverson AR
; Chang TC
; Palipane M
; Vogel P
; Rosch JW
; Samarasinghe AE
Sci Rep
2019[Dec]; 9
(1
): 19360
PMID31852944
show ga
Asthma is a chronic airways condition that can be exacerbated during respiratory
infections. Our previous work, together with epidemiologic findings that
asthmatics were less likely to suffer from severe influenza during the 2009
pandemic, suggest that additional complications of influenza such as increased
susceptibility to bacterial superinfection, may be mitigated in allergic hosts.
To test this hypothesis, we developed a murine model of 'triple-disease' in which
mice rendered allergic to Aspergillus fumigatus were co-infected with influenza A
virus and Streptococcus pneumoniae seven days apart. Significant alterations to
known synergistic effects of co-infection were noted in the allergic mice
including reduced morbidity and mortality, bacterial burden, maintenance of
alveolar macrophages, and reduced lung inflammation and damage. The lung
microbiome of allergic mice differed from that of non-allergic mice during
co-infection and antibiotic-induced perturbation to the microbiome rendered
allergic animals susceptible to severe morbidity. Our data suggest that responses
to co-infection in allergic hosts likely depends on the immune and microbiome
states and that antibiotics should be used with caution in individuals with
underlying chronic lung disease.
|*Microbiota/drug effects
[MESH]
|Animals
[MESH]
|Anti-Bacterial Agents/pharmacology/therapeutic use
[MESH]