RE: Partec Flow cytometers

From: Chance, Tim (jtc3@CDC.GOV)
Date: Tue Apr 02 2002 - 16:22:11 EST


Dear All,
We are in the process of considering a new flow instrument for very small
bacterial analysis. We have a Brucker serial #05 (the fifth one made) and it
has extremely good light scatter resolution. The rights to the Bruker was
purchased by BioRad and are now the property of Apogee flow in the UK but
they don't support the old Brucker version and the machine is on its last
leg. Apogee has been able to detect large viruses with their new instrument
but I would like to hear from anyone who owns a Partec. You may respond
privately if you wish.
J. Tim Chance
CDC
-----Original Message-----
From: Zucker.Robert@EPAMAIL.EPA.GOV
[mailto:Zucker.Robert@EPAMAIL.EPA.GOV]
Sent: Monday, April 01, 2002 1:14 PM
To: cyto-inbox
Subject: Apoptosis detection



A colleague asked a simple question regarding a continous lymphoblast
system exposed to toxicants. What is the best assay or kit to detect
apoptosis?
After a short discussion on flow assays that included --permeability
endpoints, annexin, tunnel, and subg1, he decided on using the gold
standard of laddering.  He wants a definitive test.  I thought there
were more sensitive and more accurate flow cytometic assays to detect
apoptosis. I also told him he usually needs two tests to make a
conclusion reegarding apoptosis.  Any opinions on what is the best and
easiest approach to detect apoptosis in a suspension cell culture?

Bob

Robert M. Zucker, PhD
U.S. Environmental Protection Agency
Office of Research and Development
National Health and Environmental Effects Research Laboratory
Reproductive Toxicology Division, MD 72
Research Triangle Park, North Carolina, 27711
Tel: 919-541-1585; fax 919-541-4017
e-mail: zucker.robert@epa.gov



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