RE: validation

From: Olindo Assis Martins Filho (oamfilho@netra.cpqrr.fiocruz.br)
Date: Tue Jan 19 1999 - 10:35:27 EST


Hi Mathi,

I think if you look for any flow cytometer manual from Becton Dickson they
have some statements to define a cell populations as lymphocytes. Even
the CDC guide for enumerating CD4+ cell in HIV positive subjects have
some information to monitor the gate of lymphocytes as far as gate purity
and % of lymphocytes within the gate. Most of the procedures used the
leucogate preps from any manufacturer. This reagent uses CD45 and CD14
in order to identify lymphocytes as bright CD45 and negative for CD14 in
PBL from whole blood preparations. Of course if you are using PBMC you
just will not have the presence of granulocytes, but lymphocytes still
will keep their features as far as staining with CD45 and CD14.

Good luck,

Olindo

Mathi wrote:

 When I talk about gating: i say gate on lymphocyte. They ask me to
prove that the cells in the gate are lymphocyte.



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