CHEMBL5730494

cytomteric bead array (CBA) assay: The Fix buffer I was warmed up to 37° C. in an incubator or water bath prior to use. The Perm Buffer III was chilled in a â¿¿20° C. freezer prior to use. The cells were collected at the end of treatment with testing compounds. One volume of the pre-warmed Fix Buffer I was mixed with one volume of cell suspension. If the volume of the cell suspension is greater than 100 uL, the cells were spun and resuspended in 100 uL medium or PBS. The buffer and the cell suspension were mixed well and incubated in a 37° C. water bath for 10 min. The cells were spun down at 250ÿg for 10 min and the supernatant was aspirated. The cells were washed once with BD Stain Buffer. The pellet was spun and the supernatant was removed. The cells were vortexed to be loosened, and permeabilized by slowly adding cold Perm Buffer III while vortexing or mixing. Subsequently, the cells were incubated on ice for 30 min. The cells were then spun down and washed twice with Stain Buffer. The supernatant was spun and aspirated. The cells were resuspended in a small volume of Stain buffer (50 or 100 uL containing from 200,000 to 1 million cells). Anti-IKFZ3 antibody was added to the cell suspension at 1:1000 dilution and incubated for 45 min at 4° C. The cells were then spun down and washed once with stain buffer. Secondary antibody was added to the cells at 1:5000 dilution and incubated at room temperature for 20 min in the dark. The cells were washed once with stain buffer prior to analysis by FACS.