Project description:Characterize how Balb/c mice responses to aerosolized LPS (lipopolysaccharide) alone or with intraperitoneal (i.p.) delivery of alpha1-antitrypsin (AAT)
Project description:In this study, we performed the gene expression analysis of the Normal, Diabetic and AAT treated NOD mice to elucidate the transcriptional changes induced by AAT. This will assist in identifying the biological processes / pathways involved in curative mechanism of AAT. Keywords: alpha1 antitrypsin treatment
Project description:In the classical form of α1antitrypsin deficiency a mutant protein accumulates in a polymerized form in the ER of liver cells causing liver damage and carcinogenesis by a gain-of-toxic function mechanism. Recent studies have indicated that the accumulation of mutant α1antitrypsin Z in the ER specifically activates the autophagic response but not the unfolded protein response and that autophagy plays a critical role in disposal of insoluble α1antitrypsin Z. In this study, we used genomic analysis of the liver in a novel transgenic mouse model with inducible expression to screen for changes in gene expression that would potentially define how the liver responds to accumulation of this mutant protein. Keywords: genomic analysis, alpha1-antitrypsin deficiency, comparative study, adult animals, inducible expression, liver specific
Project description:In the classical form of α1antitrypsin deficiency a mutant protein accumulates in a polymerized form in the ER of liver cells causing liver damage and carcinogenesis by a gain-of-toxic function mechanism. Recent studies have indicated that the accumulation of mutant α1antitrypsin Z in the ER specifically activates the autophagic response but not the unfolded protein response and that autophagy plays a critical role in disposal of insoluble α1antitrypsin Z. In this study, we used genomic analysis of the liver in a novel transgenic mouse model with inducible expression to screen for changes in gene expression that would potentially define how the liver responds to accumulation of this mutant protein. Experiment Overall Design: Liver RNA from adult (3 mo old) male mice inducibly expressing human alpha1-antitrypsin wild type (M) or mutant (Z) form exclusively in the liver was subjected to genomic analysis. Groups: mutant AAT (Z), wild type AAT (M), expressing (4), non-expressing (1), wild type littermates (WT); 3 biological replicates/each group
Project description:In the classical form of α1antitrypsin deficiency a mutant protein accumulates in a polymerized form in the ER of liver cells causing liver damage and carcinogenesis by a gain-of-toxic function mechanism. Recent studies have indicated that the accumulation of mutant α1antitrypsin Z in the ER specifically activates the autophagic response but not the unfolded protein response and that autophagy plays a critical role in disposal of insoluble α1antitrypsin Z. In this study, we used genomic analysis of the liver in a novel transgenic mouse model with inducible expression to screen for changes in gene expression that would potentially define how the liver responds to accumulation of this mutant protein. Experiment Overall Design: Liver RNA from juvenile (6 wk old) male mice inducibly expressing human alpha1-antitrypsin wild type (M) or mutant (Z) form exclusively in the liver was subjected to genomic analysis. Groups: mutant AAT (Z), wild type AAT (M), expressing (4), non-expressing (1); 3 biological replicates/each group. Experiment Overall Design: Groups: mutant AAT (Z), wild type AAT (M), expressing (4), non-expressing (1); 3 biological replicates/each group, all males, 6 weeks of age
Project description:Whole genome mRNA and microRNA profiling of bronchoalveolar lavage (BAL) and peripheral blood mononuclear cell (PBMC) in Alpha-1 Antitrypsin Deficiency patients with PiZZ or PiMZ alpha-1 antitrypsin genotypes