Dear Dr Scott I am very much interested in your experiments with heating the cells at 65 degrees. I used to heat Dendritic cells at 56 degrees for 30 minutes in order to abolish proliferation. In your experiments do you test if the structural antigens on the surface remain intact or in some way are they altered?, Have you look if your dead cells are in some stage of apoptosis?. Regards Rafael >> We are attempting to produce a population of "dead" WBC to spike into >> a live dead assay and need to find a way to kill the cells without >> destroying the CD14 marker. > >Dear Dr. Koratich: > >We've used a brief (10 minute) incubation at 65oC to kill hematopoietic >progenitor cells for a similar purpose -- generating a standard curve of >viable/dead cells for assay validation. > >I've never looked at expression of CD14 on these cells, but the method does >kill cells while leaving them structurally intact. > >Scott > > > >----------------------------------------------- >Scott R. Burger, M.D. >Medical Director, Cell Therapy Clinical Laboratory >Department of Laboratory Medicine and Pathology >University of Minnesota >burge009@gold.tc.umn.edu >612-626-4919 >612-624-5411 (Fax) \|/ (o o) ________________________________oOo__(_)__oOo_________________________________ ___/\_ | Rafael Nunez mailto:rafaeln@vetvir.unizh.ch / o \/| | University Inst.for Virology http://www.unizh.ch/vetvir / _| | Winterthurerstr. 266a Telephone: (+41) 1 6358710 /_/\__/-\/ | 8057 Zurich SWITZERLAND Faximile : (+41) 1 6358911 ______________________________________________________________________________
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