viability and MACS separation purities

From: Kristi Harkins (kharkins@iastate.edu)
Date: Wed Oct 20 1999 - 11:40:19 EST


Hi,

  One of our clients asked me the effect of lower viability on the Vario
MACS separation purity.  Since antibodies nonspecifically bind to dead
cells, is this something to worry about in say a population of cells that
has an 80% live count after thawing? Is it necessary to run a ficoll
gradient to enrich for the live cells before MACS purifying? What is an
acceptable live count before proceeding?  I would like to hear from anyone
with experience along these lines.  Thanks,

Kristi R. Harkins, PhD
Director, Cell & Hybridoma Facility
Iowa State University
1104 Molecular Biology Building
Ames, IA 50011
Office (515) 294-2472
Lab    (515) 294-8504
FAX    (515) 294-0453
http://www.biotech.iastate.edu/facilities/cellhyb/homepage.htm



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