Re: Annexin V staining

From: Scott Tighe (stighe@zoo.uvm.edu)
Date: Fri Aug 03 2001 - 10:57:51 EST


Ellen:

Many people that I know perform annexin V on adherent cells. This is not
a good idea as you have brought up.  In general it is probably
consisdered bad science. However, ICT sells a cellular release reagent
to circumvent the problem of popping holes in the membrane of adherent
cells. I have not treid it. If one really wants to run Annexin on
adherent cells than they had better run strict controls to know what the
level of false positives are being produced. This is cell type dependent
as you would image. Certainly if it is possible, one should try to avoid
annexin on adherent cells.
I am curious to hear other peoples comments on this topic.

Scott Tighe
Vermont Cancer Center

Ellen.Freed@astrazeneca.com wrote:
>
> Since we're on this subject.  I've been told it's an early marker. . .
> I have a separate question.  Is anyone doing Annexin V staining on adherent
> cells.  I understand that once you trypsinize the cells, this is no longer
> an accurate measure.  Any comments on this or ways to get around it?
>
> Thanks
>
> Ellen Freed
>
> Ellen Freed
> Scientist
> AstraZeneca R&D Boston



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