Cell Surface/DNA staining question

From: Bill Justice (bjustice@kumc.edu)
Date: Thu May 03 2001 - 11:43:14 EST


I am having problem with a procedure for CD3/CD4/CD8 and DNA cell cycle analysis and
wanted to see if anyone could help.

Here is what I am doing (briefly) using mouse blood.

10 ul of CD3-Biotin + 100 ul blood
incubate
wash and spin
10ul SAV-ECD + CD8-FITC + CD4-FITC
incubate
wash and spin
lyse with coulter whole blood lyse kit
60 seconds
add 250 ul of the "fixative" in the whole blood lysing kit
wash and spin
wash and spin

analyze for cell surface ( this is just a monitoring step)

spin
add 300 ul ot PBS + 700 ul of COLD EtOH 100% slowly dropwise
incubate 15 minutes COLD
spin
resuspend in PBS - hydration 15 minutes RT
spin
add working solution of RNase (5 ug/ml) in TRIS(10 mM) and CaCL2 (5 mM)  and 50%
Glycerol buffer - 1ml
add 20 ul of 7-AAD
incubate 15 minutes

Analyze


I can use any help and if I am doing this all wrong, I am open to completely new
procedures.

Thanks in advance





Bill Justice
Laboratory Information Systems
KU Medical Center



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