Journal: EBioMedicine
Article Title: LncRNA PICSAR promotes cell proliferation, migration and invasion of fibroblast-like synoviocytes by sponging miRNA-4701-5p in rheumatoid arthritis
doi: 10.1016/j.ebiom.2019.11.024
Figure Lengend Snippet: Verification of lncRNAs and effect of lncRNA PICSAR suppression on the proliferation of rheumatoid arthritis (RA) fibroblast-like synoviocytes (FLSs). (a) Quantitative real-time reverse transcription PCR (qRT-PCR) verified 5 selected lncRNAs with the highest up-regulated differential expression according to the microarray analysis. LncRNA PICSAR is the most significantly up-regulated in RA-FLSs. (b) LncRNA PICSAR was also over-expressed in the synovial fluid of RA patients compared with the control group by qPCR. (c) The inhibition efficiency of specific PICSAR small interference RNA (siRNA) in RA-FLSs was detected by qRT-PCR. (d) Compared with negative control, the expression of p-ERK1/2 in the total ERK1/2 protein was significantly decreased in the RA-FLSs after transfection. (e) PICSAR knockdown in RA-FLSs decreases cell proliferation assessed by a Cell Counting Kit-8 assay. The absorbance at 450 nm wavelength of PICSAR-siRNA group were significantly reduced at the indicated time points compared to the other two control groups. All the results were presented as the mean ± standard deviation (S.D.) based on ≥ 3 replicates involving ≥ 3 samples. * P < 0.05, ** P < 0.01, and *** P < 0.001 versus control groups.
Article Snippet: Sample labeling and array hybridization were performed according to the Agilent One-Color Microarray-Based Gene Expression Analysis protocol (Agilent Technology) with minor modifications.
Techniques: Quantitative RT-PCR, Expressing, Microarray, Inhibition, Negative Control, Transfection, Cell Counting, Standard Deviation