Project description:Whole blood and spleen tissue was collected from naïve untreated mice. We compared the gene expression profiles of naïve autoimmunity prone BQ.Ncf1.m1J mutated mice and wild type BQ mice. The samples from specific pathogen-free animal facility were collected in two sample sets (marked I and II respectively) and the germ-free facility samples (marked GF / germ free) formed the third analyzed batch. The data revealed a pronounced type I interferon signature in the Ncf1.m1J mutated mice housed in both conditions.
Project description:Whole blood and spleen tissue was collected 15 (d15) or 44 (d44) days postimmunization from mice immunized with type II collagen on day 0 and immunostimulated on day 21. We compared the gene expression profiles of disease prone BQ.Ncf1m1J mice to that in BQ wild type mice. The samples were collected in two sets (marked I and II). The results show a pronounced interferon signature and increase in inflammatory transcripts in the BQ.Ncf1m1J mice.
Project description:Oxylipins play important roles in various biological processes and are considered as mediators of inflammation for a wide range of diseases such as rheumatoid arthritis (RA). The purpose of this research was to study differences in oxylipin levels between a widely used collagen-induced arthritis (CIA) mice model and healthy control (Ctrl) mice. DBA/1J male mice (age: 6-7 weeks) were selected and randomly divided into two groups, viz. a CIA- and a Ctrl group. The CIA mice were injected intraperitoneal (i.p.) with the joint cartilage component collagen type II (CII) and an adjuvant injection of lipopolysaccharide (LPS). Oxylipin metabolites were extracted from plasma for each individual sample using solid phase extraction (SPE) and were detected with high performance liquid chromatography/tandem mass spectrometry (HPLC-ESI-MS/MS), using dynamic multiple reaction monitoring (dMRM). Both univariate and multivariate statistical analysis was applied. The results in univariate student's t-test revealed 10 significantly up- or down-regulated oxylipins in CIA mice, which were supplemented by another 6 additional oxylipins, contributing to group clustering upon multivariate analysis. The dysregulation of these oxylipins revealed the presence of ROS-generated oxylipins and an increase of inflammation in CIA mice. The results also suggested that the Collagen-induced arthritis might associate with dysregulation of apoptosis, possibly inhibited by activated NF- κ B because of insufficient PPAR-γ ligands.
Project description:Whole blood and spleen tissue was collected from naïve untreated mice. We compared the gene expression profiles of naïve autoimmunity prone BQ.Ncf1.m1J mutated mice and wild type BQ mice. The samples from specific pathogen-free animal facility were collected in two sample sets (marked I and II respectively) and the germ-free facility samples (marked GF / germ free) formed the third analyzed batch. The data revealed a pronounced type I interferon signature in the Ncf1.m1J mutated mice housed in both conditions. RNA was isolated and globin removal was performed for all samples. The cells were not stimulated or selected ex vivo.
Project description:The goal of this experiment is to profile longitudinal transcriptome changes during the development of murine arthritis in CIA mouse model. Male DBA1 mice (age between 10 to 12 weeks) were used in this study. CIA was induced by two immunizations with Type II collagen in Complete Freund’s adjuvant (CFA) at day 0, and with Type II collagen in Incomplete Freund’s adjuvant (IFA) at day 21. Bulk RNA-seq were done on right hind paws from control (non-immunized DBA1 mice) and CIA mice at different disease stages (up to 10 weeks after 1st immunization).
Project description:The molecular basis to autoimmune arthritis is unclear. Collagen Induced Arthritis (CIA) in mice, is a model that has many features that resemble Rheumatoid Arthritis (RA), although it does not perfectly duplicate RA. The study of CIA has provided insight into relevant pathogenesis and has aided in the identification of potential therapeutic targets. In this study we used Mouse Cytokine Expression Arrays to examine gene expression levels in joints at early, peak and decline stages during disease in DBA/1 mice. The aim of the study was to identify candidate molecules that may be involved in the development and progression of collagen-induced arthritis (CIA). Keywords: Disease State Analysis
Project description:This study identifies molecular changes in hematopoietic stem cells (HSC) isolated from mice with chronic autoimmune arthritis induced using the collagen-induced arthritis (CIA) model.
