annexin/PI

From: Mireia Dalmau (S. Radioisotops Bellv.) (SERV-RAD-BELL@bell.ub.es)
Date: Tue Jan 26 1999 - 13:03:34 EST


We have been analyzing apoptosis cell death in a human colon 
adenocarcinoma cell line, HT29. We have obtained very nice and clear 
results, but we usually detect a 3 to 5% annexin (-)/ PI (+) 
population. 
We can observe the same result with other cell lines and different 
stimuli, and I have been asked to explain what is happening 
there.
 Many articles don't make any difference between PI (+) cells, beeing 
annexin (+) or (-). Could someone suggest how to describe these cells ?

Thank you very much.

Mireia
________________________________________________________

Mireia Dalmau
Servei de Radioisotops i Citometria de Flux
Campus de Bellvitge, Universitat de Barcelona.
C/ Feixa Llarga s/n. 08907 L'Hospitalet

Telf. 93 402 42 06     FAX. 93 402 42 13
e-mail: serv-rad-bell@bell.ub.es
__________________________________________________________



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