To measure the sRAGE production rate, after overnight incubation,
GFP co-transfected cells were washed multiple times with
1 PBS, and fresh cell culture medium was added to the cell. At
various time points, a small volume of medium was removed,
and sRAGE concentration was measured in each sample with
ELISA. The sRAGE production rate was then calculated using GFPpositive
cell numbers determined by flow cytometry analyses.