Fig. 1
From: Absence of the CXCR4 antagonist EPI-X4 from pharmaceutical human serum albumin preparations
Detection of EPI-X4 in pharmacological preparations of HSA. a Concentrations of EPI-X4 in naïve HSA samples A-H as measured by sandwich ELISA. Data shown are mean values derived from three independent experiments ± SD. b EPI-X4 concentration in acidified (pH4) HSA preparations incubated for 4 h in the absence (left, black triangles) or presence (right, black dots) of Cathepsin D and Cathepsin E, respectively. Shown data are derived from three individual experiments ± SD. The dotted line indicated the detection limit