Affinity purification of sRAGE from CHO–CD14 cells has been
described [17]. Briefly, CHO–CD14 cells stably or transiently transfected
with T7-sRAGE construct (WT or OP plasmid) were grown in
RPMI1640 cell culture medium supplemented with 10% fetal
bovine serum and antibiotics. Cell culture medium was collected
daily and centrifuged at low speed to remove the dead cells. A
Novagen T7 tag affinity purification kit was used to purify sRAGE,
according to the manufacturer’s instructions.