id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-003099-a0acr28o	Koch, R. M.	The endotoxin-induced pulmonary inflammatory response is enhanced during the acute phase of influenza infection	2018-07-05		.txt	text/plain	3883	194	39	In vitro studies in which influenza-infected alveolar macrophages were subsequently stimulated with bacterial lipopolysaccharide (LPS), a bacterial compound that induces a profound innate immune response, revealed increased levels of pro-inflammatory cytokines tumor necrosis factor (TNF) α, interleukin (IL)-1β, and IL-6 [4] [5] [6] [7] [8] , indicative of a priming effect on these cells by influenza. Likewise, murine influenza infection resulted in increased levels of pro-inflammatory cytokines in both plasma and lungs, and enhanced pulmonary neutrophil influx upon pneumococcal infection 7 days later [10] . In the present study, we demonstrate that a systemic LPS challenge in the acute phase of influenza infection (4 days post-infection) results in an enhanced pulmonary, but not systemic pro-inflammatory cytokine response. Our results are in accordance with in vitro data reporting a cellular priming effect of influenza observed upon secondary stimulation with LPS [4] [5] [6] [7] [8] , as well as with other murine in vivo studies that report increased inflammation and pulmonary neutrophil influx or sequestration upon a secondary bacterial infection or LPS challenge in the acute phase of influenza infection [9, 10] .	./cache/cord-003099-a0acr28o.txt	./txt/cord-003099-a0acr28o.txt