Project description:Synovial fibroblasts were extracted from knee joints of naïve mice(DBA/1J, male 8-12 week old), and passaged 3-4 times. Cells were plated at a concentration of 1 X 106 cells/dish in 60 mm dish in 5 ml of RPMI1640 medium with 1% heat-inactivated FCS at 37°C, 5% CO2. Cells were treated vehicle or stimulated by IL-1beta. In IL-1beta(5ng/ml) stimulated groups, indomethacin (1 μM) and iloprost (1μM) were further added either alone or in combination. After 6 hour stimulation as described above, cells were isolated and frozen by liquid nitrogen, and stored at –80°C before use. Total RNA was extracted by RNAeasy Mini Kit. The RNA sample was labeled for hybridization onto the genechip array according to the standard affymetrix protcols. Keywords = arthritis prostacyclin Keywords: other
Project description:The aim of this study was to explore the role of ARNO, also known as Cyth2, in synovial fibroblasts using NGS-derived transcriptome analysis (RNA-seq). Synovial fibroblasts were isolated from mouse synovium, and stimulated with IL-1beta for 12 hours in healthy cells and cells where Cyth2 expression was knocked-down by silencing RNA. Methods: Synovial fibroblasts were extracted from the synovium of healthy mice and expanded in vitro, RNA was extracted from naïve, IL-1β stimulated and IL-1β stimulated ARNO knock-down synovial fibroblast. Methods: Whole Transcriptome Profiling of synovial fibroblasts were generated by deep sequencing, in triplicate, using Illumina NextSeq™ 500 platform. Libraries were prepared using polyA selection (TruSeq stranded mRNA kit). Methods: The sequence reads that passed quality filters were aligned to mouse reference genome (GRCM38) using Hisat2 version 2.1.0. we mapped about 30 million sequence reads per sample (75 bp, paired-end) Methods: Featurecounts version 1.4.6 was used to quantify reads counts. Data quality control, non-expressed gene filtering, median ratio normalization (MRN) implemented in DESeq2 package and identification of differentially expressed (DE) genes were done using the R bioconductor project DEbrowser. Results: Firstly, We detected differentially expressed (DE) genes among three conditions, which pass the threshold of >4 fold, adjp <0.01. Then, we detected DE genes in IL-1β stimulated ARNO knock-down synovial fibroblast compared to IL-1β stimulated synovial fibroblast, which pass the threshold of >2 fold, adjp <0.01. DE genes reflect decreased cellular inflammatory response after ARNO knockdown Conclusions: Our results reflect an ARNO-mediated inflammatory response in synovial fibroblast, provides new opportunitties for targeting fibroblast in chronic arthritis and joint disease.
Project description:To investigate effects of 4 mixture of cytokines including TNF-alpha, IL-1beta IFN-gamma, and TGF-bata1 on rhematoid arthritis synovial fibroblasts (RASFs), we treated RASFs (n = 3) with TNF-alpha (1 ng/mL), IL-1beta (0.1 ng/mL), IFN-gamma (10 ng /mL), TGF-beta1 (1 ng/mL) (4mix) or vehicle control (Veh) for 24 hours and conducted RNA-seq analysis.
Project description:To investigate effects of TEAD4 knockdown on rhematoid arthritis synovial fibroblasts (RASFs) stimulated with 4 mixture of cytokines including TNF-alpha, IL-1beta IFN-gamma, and TGF-bata1 , we pre-treated RASFs (n = 3) with siControl (siCtrl) or siTEAD4 for 72 hours, and then treated them with TNF-alpha (1 ng/mL), IL-1beta (0.1 ng/mL), IFN-gamma (10 ng /mL), TGF-beta1 (1 ng/mL) (4mix) for 24 hours and conducted RNA-seq analysis.
