Project description:BALB/c mice develop peripheral arthritis (PGIA) and spondyloarthropathy (PGIS) upon repeated intraperitoneal injections of human cartilage proteoglycan (PG) aggrecan. The aim of the present study was to identify spondylitis-specific genes by comparing intervertebral disc (IVD) RNA samples from spondyloarthropathic and naïve BALB/c mice. Keywords: Genetic modification
Project description:BALB/c mice are susceptible to proteoglycan (PG) aggrecan-induced arthritis (PGIA), a murine model of rheumatoid arthritis (Glant,T.T. and Mikecz,K., Proteoglycan aggrecan-induced arthritis. A murine autoimmune model of rheumatoid arthritis. Methods Mol.Med. 2004. 102: 313-338.). However, there are marked differences among BALB/c colonies (maintained by different vendors at different locations) in PGIA onset and severity, which could be the result of subtle variations in their genetic background. In the present microarray study, we have identified differences among BALB/c colonies, and an altered immunization-related gene expression pattern in PGIA model. Keywords: Genetic modification
Project description:BALB/c mice develop peripheral arthritis (PGIA) and spondyloarthropathy (PGIS) upon repeated intraperitoneal injections of human cartilage proteoglycan (PG) aggrecan. The aim of the present study was to identify spondylitis-specific genes by comparing intervertebral disc (IVD) RNA samples from spondyloarthropathic and naM-CM-/ve BALB/c mice. Keywords: Genetic modification We compared the gene expression data of 5 spondyloarthropathic and 3 naM-CM-/ve (control) mice.
Project description:BALB/c mice are susceptible to proteoglycan (PG) aggrecan-induced arthritis (PGIA), a murine model of rheumatoid arthritis (Glant,T.T. and Mikecz,K., Proteoglycan aggrecan-induced arthritis. A murine autoimmune model of rheumatoid arthritis. Methods Mol.Med. 2004. 102: 313-338.). However, there are marked differences among BALB/c colonies (maintained by different vendors at different locations) in PGIA onset and severity, which could be the result of subtle variations in their genetic background. In the present microarray study, we have identified differences among BALB/c colonies, and an altered immunization-related gene expression pattern in PGIA model. Experiment Overall Design: In this study we compared the gene expression profile of 12 spleens from PG-immunized (RNA was isolated 12 days after immunization) and naive mice from BALB/cJ and BALB/cByJ colonies (3-3 from each group), then made comparisons between colonies and based on immunization.
Project description:BALB/c mice are susceptible to proteoglycan (PG) aggrecan-induced arthritis (PGIA), and the absence of TSG-6 further increases susceptibility and local inflammatory reactions, including neutrophil invasion into the joints. To gain insight into the mechanisms of TSG-6 action, synovial fibroblasts were isolated from wild-type and TSG-6-KO mice, cultured and exposed to various agents affecting either the TSG-6 expression and/or modify the intracellular function of TSG-6. In the present microarray studies, we have identified differences in gene expression by fibroblasts isolated from wild-type or TSG-6-KO mice Keywords: Genetic modification
Project description:Mice selected for high and low acute inflammation were tested for pristane induced arthritis, showing to be susceptible and resistant, respectively. We used microarrays to detail the global programme of gene expression underlying arthritis progression during induction and identified distinct classes of differentially expressed genes during this process in the footpad of these mice. AIRmax (high inflammation) and AIRmin (low inflammation) mouse footpads were collected for RNA extraction and hybridization on Affymetrix microarrays. We compared control and experimental footpads from male and female AIRmax and AIRmin mice on days 0 and 160, respectively. Please note that the AIRmax and AIRmin mice were obtained through bidirectional genetic selection, starting with a genetically heterogeneous founder population (F0) produced by intercrossing eight isogenic strains of mice of independent origins (A/J, DBA/2J, P/J, SWR/J, SJL/J, CBA/J, BALB/cJ and C57BL/6J).
Project description:BALB/c mice are susceptible to proteoglycan (PG) aggrecan-induced arthritis (PGIA), and the absence of TSG-6 further increases susceptibility and local inflammatory reactions, including neutrophil invasion into the joints. To gain insight into the mechanisms of TSG-6 action, synovial fibroblasts were isolated from wild-type and TSG-6-KO mice, cultured and exposed to various agents affecting either the TSG-6 expression and/or modify the intracellular function of TSG-6. In the present microarray studies, we have identified differences in gene expression by fibroblasts isolated from wild-type or TSG-6-KO mice Keywords: Genetic modification In this study we compared the gene expression profile of 42 fibroblast cultures from mouse synovial samples. Fifteen samples were wild-type and 27 samples were TSG-6 knockout. In these two genotype groups fibroblasts were treated with TNFa, LPS, TSG-6, HA, or HA+TSG-6, and were compared to untreated samples in the same genotype group. We also compared the same treatments between KO and WT.