RNA sequencing (RNA-SEQ) of Human endothelial cells (HUVEC) in LFS, sFRP2OE, and WT conditioned media

Purpose: To understand molecular and cellular effects of secreted sFRP2 to endothelial cells Methods: We performed RNA sequencing of 9 samples from HUVEC cultured in WT, sFRP2OE, LFS conditioned media for 16 hours Conclusion: apoptosis and angiogenetic molecular factors are activated in HUVEC by secreted sFRP2 Overall design: cDNA library preparation and sequencing were performed at Novogen (http://www.novogen.com/home). Briefly, RNA quality was determined with an Agilent Bioanalyzer (RNA integrity number [RIN] > 7.0 for all samples). mRNA was purified from total RNA using poly-T oligo-attached magnetic beads, and double stranded cDNA synthesized using random hexamers, M-MuLV Reverse Transcriptase (RNase H), and DNA Polymerase I. NEBNext Adaptor with hairpin loop structure were ligated to the cDNA in preparation for hybridization. In order to select cDNA fragments of preferentially 150~200 bp in length, the library fragments are purified with AMPure XP system (Beckman Coulter, Beverly, USA). Library of 150-200 bp fragments at an effective concentration of > 2nM were loaded onto an Illumina HiSeq 4000 for sequencing