5,6-CFDA/SE Invitrogen C1157 dissolved in DMSO at 5 mM and stored at -20 C.
Suspend PBMCs at 10x106 cells/mL in PBS alone.
Cells should be in PBS for CFSE labeling.
If CFSE negative control is needed, remove cells now.
Make '2X' concentration (10 μM) in PBS
- Add 4mL PBS + 8 μL 5 mM CFSE (for example)
Combine 1:1 PBMC cells + CFSE (i.e. 300uL PBMCs + 300uL CFSE) in 15 ml tube.
Place in H2O bath x 10 min.
Wash in 10 mL complete medium (10 min at 300G). Aspirate.
Resuspend in medium at desired density