Role of Interleukin-6 in Influenza Pandemic A (H1N1pdm) Infection in Mice
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ABSTRACT:
ORGANISM(S): Mus musculus
PROVIDER: GSE31022 | GEO | 2012/06/25
SECONDARY ACCESSION(S): PRJNA144913
REPOSITORIES: GEO
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Project description:Profile of host response in C57BL6/J mice infected with A/Mexico/4108/2009 (H1N1), spanning days 1 through 6 post-infection. Focused analysis on the involvement of IL-6 in the host response. Total RNA obtained from lung tissue collected from infected C57BL6/J mice at t = 1, 2, 3, 4, 5, 6 days post-infection (n=3/time point). Uninfected control samples were also obtained (n=3).
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Project description:This study used virological, histological, immunological and global gene expression to compare the virlence of two newly emerged 2009 H1N1 isolates (A/Mexico/InDRE4487/2009 and A/Mexico/4108/2009) and current seasonal H1N1 influenza strain (A/Kawasaki/UTK-4/2009) in experimentally infected cynomolgus macaques. We showed that infection of macaques with two genetically similar but clinically distinct SOIV isolates from the early stage of the pandemic (A/Mexico/4108/2009 and A/Mexico/InDRE4487/2009) resulted in upper and lower respiratory tract infections and clinical disease ranging from mild to severe pneumonia. Disease associated with these SOIV isolates was clearly advanced over the mild infection caused by A/Kawasaki/UTK-4/2009, a current seasonal strain.
2011-08-30 | GSE31694 | GEO
Project description:This study used virological, histological, immunological and global gene expression to compare the virlence of two newly emerged 2009 H1N1 isolates (A/Mexico/InDRE4487/2009 and A/Mexico/4108/2009) and current seasonal H1N1 influenza strain (A/Kawasaki/UTK-4/2009) in experimentally infected cynomolgus macaques. We showed that infection of macaques with two genetically similar but clinically distinct SOIV isolates from the early stage of the pandemic (A/Mexico/4108/2009 and A/Mexico/InDRE4487/2009) resulted in upper and lower respiratory tract infections and clinical disease ranging from mild to severe pneumonia. Disease associated with these SOIV isolates was clearly advanced over the mild infection caused by A/Kawasaki/UTK-4/2009, a current seasonal strain. Total dose of 7 x 10^6 pfu of influenza virus by a combination of different routes: intratracheal (4 ml), intranasal (0.5 ml each nostril), intraocular (0.5 ml each eye), and oral (1 ml).
2011-08-29 | E-GEOD-31694 | biostudies-arrayexpress
Project description:This SuperSeries is composed of the following subset Series: GSE36461: MiRNA profiling during infection with H1N1 influenza A virus (A/Mexico/InDRE4487/H1N1/2009) GSE36462: MiRNA profiling during infection with H7N7 influenza A virus (A/Ck/Germany/R28/H7N7/2003) GSE36553: mRNA profiling during infection with H1N1 influenza A virus (A/Mexico/InDRE4487/H1N1/2009) Refer to individual Series
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Project description:While pandemic 2009 H1N1 influenza A viruses were responsible for numerous severe infections in humans, these viruses do not typically cause corresponding severe disease in mammalian models. However, the generation of a virulent 2009 H1N1 virus following serial lung passage in mice has allowed for the modeling of human lung pathology in this species. Genetic determinants of mouse-adapted 2009 H1N1 viral pathogenicity have been identified, but the molecular and signaling characteristics of the host response following infection with this adapted virus have not been described. Here, we compared the gene-expression response following infection of mice with A/CA/04/2009 (CA/04) or the virulent mouse-adapted strain (MA-CA/04). Microarray analysis revealed that increased pathogenicity of MA-CA/04 was associated with: (1) early and sustained inflammatory and interferon response that could be driven in part by interferon regulatory factors (IRFs) and increased NF-kappaB activation, as well as inhibition of the negative regulator TRIM24, (2) early and persistent infiltration of immune cells, including inflammatory macrophages, and (3) the absence of activation of lipid metabolism later in infection, that may be mediated by nuclear receptors inhibition, including PPARG, HNF1A and 4A, with pro-inflammatory consequences. Further investigation of these signatures in the host response to other H1N1 viruses of varied pathogenicity confirmed their general relevance for virulence of influenza virus and suggested that lung response to MA-CA/04 virus was similar to that following lethal H1N1 r1918 influenza virus. This study links for the first time differential activation of IRFs, nuclear receptors, and macrophage infiltration with influenza virulence in vivo.
2012-03-08 | GSE36328 | GEO
Project description:Modulating the host response is a promising approach to treating influenza, a virus whose pathogenesis is determined in part by the host response it elicits. Though the pathogenicity of emerging H7N9 influenza virus has been reported in several animal models, these studies have not included a detailed characterization of the host response following infection. To this end, we characterized the transcriptomic response of BALB/c mice infected with H7N9 (A/Anhui/1/2013) virus and compared it to the responses induced by H5N1 (A/Vietnam/1203/2004), H7N7 (A/Netherlands/219/2003) or H1N1 (A/Mexico/4482/2009) viruses. We found that responses to the H7 subtype viruses were intermediate to those elicited by H5N1 and H1N1 early in infection, but that they evolved to resemble the H5N1 response as infection progressed. H5N1, H7N7 and H7N9 viruses were pathogenic in mice, and this pathogenicity correlated with increased cytokine response, decreased lipid metabolism and decreased coagulation signaling. This three-pronged signature has previously been observed in mice infected with pathogenic H1N1 strains such as the 1918 virus, indicating that it may be predictive of pathogenicity across multiple influenza strains. Groups of 6- to 8-week-old BALB/c mice were infected with either A/Anhui/01/2013 (H7N9), A/Netherlands/219/2003 (H7N7), A/Vietnam/1203/2004 (H5N1), or pandemic H1N1 human virus, A/Mexico/4482/2007 (H1N1). Infections were done at 10^5 PFU or time-matched mock infected. Time points were 1, 3 and 5 d.p.i. There were 4-5 infected and 3 mock infected animals/time point. Lung samples were collected for virus load and transcriptional analysis. Weight loss and animal survival were also monitored.
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Project description:This purpose of this experiment was to investigate the transcriptional differences between C57BL6, RIPK3 knock-out mice infected with influenza strain A/CA/04/2009 (H1N1) virus.
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