Re: Lymphocyte Subsets after CD34 selection

From: Timothy J Farley (tfarley@computer.net)
Date: Mon Jul 07 1997 - 23:13:01 EST


Chang-Seok,

I've done a couple CD34 selections on G-CSF mobilized normal-donors with
the Baxter ISOLEX system and have never experienced such results.  I've
observed that the non-target cells that are captured are primarily
monocytes (CD14+).  I almost never see any CD19+ positive events.

It's common to see CD34+CD19+ events in the bone marrow but I've never
observed these cells mobilized to the peripheral blood.  Aftter G-CSF, most
are CD34+CD33+.

What was the CD34% of the product?  Were these cells also CD45dim?  Were
all the events in the selected fraction "lymph-sized" based on scatter? 
What was the circulating peripheral CD34/ul count?

Drop me a note at tfarley@computer.net
Maybe I can be of some help

Dr. Timothy Farley
New York Blood Center Clinical Services
Valhalla, NY



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