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2008 ; 4
(8
): e1000115
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
H5N1 and 1918 pandemic influenza virus infection results in early and excessive
infiltration of macrophages and neutrophils in the lungs of mice
#MMPMID18670648
Perrone LA
; Plowden JK
; García-Sastre A
; Katz JM
; Tumpey TM
PLoS Pathog
2008[Aug]; 4
(8
): e1000115
PMID18670648
show ga
Fatal human respiratory disease associated with the 1918 pandemic influenza virus
and potentially pandemic H5N1 viruses is characterized by severe lung pathology,
including pulmonary edema and extensive inflammatory infiltrate. Here, we
quantified the cellular immune response to infection in the mouse lung by flow
cytometry and demonstrate that mice infected with highly pathogenic (HP) H1N1 and
H5N1 influenza viruses exhibit significantly high numbers of macrophages and
neutrophils in the lungs compared to mice infected with low pathogenic (LP)
viruses. Mice infected with the 1918 pandemic virus and a recent H5N1 human
isolate show considerable similarities in overall lung cellularity, lung immune
cell sub-population composition, and cellular immune temporal dynamics.
Interestingly, while these similarities were observed, the HP H5N1 virus
consistently elicited significantly higher levels of pro-inflammatory cytokines
in whole lungs and primary human macrophages, revealing a potentially critical
difference in the pathogenesis of H5N1 infections. Primary mouse and human
macrophages and dendritic cells were also susceptible to 1918 and H5N1 influenza
virus infection in vitro. These results together indicate that infection with HP
influenza viruses such as H5N1 and the 1918 pandemic virus leads to a rapid cell
recruitment of macrophages and neutrophils into the lungs, suggesting that these
cells play a role in acute lung inflammation associated with HP influenza virus
infection.
|Adult
[MESH]
|Animals
[MESH]
|Dendritic Cells/*immunology/pathology
[MESH]
|Disease Outbreaks/history
[MESH]
|Female
[MESH]
|History, 20th Century
[MESH]
|Humans
[MESH]
|Influenza A Virus, H1N1 Subtype/immunology/pathogenicity
[MESH]
|Influenza A Virus, H5N1 Subtype/*immunology/pathogenicity
[MESH]