cDNA was synthesized from 0.5 lg extracted DNA-free RNA with
M-MLV reverse transcriptase (Promega) and random hexamer.
cDNA (2 ll) was then quantified with QuantiFast SYBR Green PCR
kits (Qiagen) in an ABI7300 real time PCR system. Serial 10-fold dilution
of sRAGE (WT) or sRAGE(OP) plasmid from 101 to 105 ng/ml
were used as templates to establish a standard curve to calculate
the half-life of mRNA, as described [30]. Primers sequence specific
to sRAGE(WT) are: forward: 50-AGCCACTGGTGCTGAAGTGT-30 ,
reverse: 50-GAATCTGGTAGACACGGACTC-30; primers sequence specific
to sRAGE(OP) are: forward: 50- CCGAGTTCATGGCCTCTATG-30 ,
reverse: 50-GAGGACTCAGCACCTTCCAG-30 .