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2014 ; 3
(ä): ä Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Female resistance to pneumonia identifies lung macrophage nitric oxide synthase-3
as a therapeutic target
#MMPMID25317947
Yang Z
; Huang YC
; Koziel H
; de Crom R
; Ruetten H
; Wohlfart P
; Thomsen RW
; Kahlert JA
; Sørensen HT
; Jozefowski S
; Colby A
; Kobzik L
Elife
2014[Oct]; 3
(ä): ä PMID25317947
show ga
To identify new approaches to enhance innate immunity to bacterial pneumonia, we
investigated the natural experiment of gender differences in resistance to
infections. Female and estrogen-treated male mice show greater resistance to
pneumococcal pneumonia, seen as greater bacterial clearance, diminished lung
inflammation, and better survival. In vitro, lung macrophages from female mice
and humans show better killing of ingested bacteria. Inhibitors and genetically
altered mice identify a critical role for estrogen-mediated activation of lung
macrophage nitric oxide synthase-3 (NOS3). Epidemiologic data show decreased
hospitalization for pneumonia in women receiving estrogen or statins (known to
activate NOS3). Pharmacologic targeting of NOS3 with statins or another
small-molecule compound (AVE3085) enhanced macrophage bacterial killing, improved
bacterial clearance, and increased host survival in both primary and secondary
(post-influenza) pneumonia. The data identify a novel mechanism for host defense
via NOS3 and suggest a potential therapeutic strategy to reduce secondary
bacterial pneumonia after influenza.
|*Immunity, Innate/drug effects
[MESH]
|*Molecular Targeted Therapy
[MESH]
|Adolescent
[MESH]
|Adult
[MESH]
|Aged
[MESH]
|Aged, 80 and over
[MESH]
|Animals
[MESH]
|Benzodioxoles/pharmacology/therapeutic use
[MESH]
|Case-Control Studies
[MESH]
|Estrogens/pharmacology
[MESH]
|Female
[MESH]
|Hospitalization
[MESH]
|Humans
[MESH]
|Hydroxymethylglutaryl-CoA Reductase Inhibitors/pharmacology/therapeutic use
[MESH]