The identification of circular RNAs from peripheral blood mononuclear cells in systemic lupus erythematosus

Total RNA from each sample was quantified using the NanoDrop ND-1000. The sample preparation and microarray hybridization were performed based on the Arraystar’s standard protocols. Briefly, total RNA from each sample was amplified and transcribed into fluorescent cRNA utilizing random primer according to Arraystar’s Super RNA Labeling protocol (Arraystar Inc.). The labeled cRNAs were hybridized onto the Arraystar Human circRNA Array (6x7K, Arraystar). After having washed the slides, the arrays were scanned by the Axon GenePix 4000B microarray scanner.