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Frequency of human T regulatory cells in peripheral blood is significantly reduced by cryopreservation.

Elkord, Eyad
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Abstract
Cryopreservation of peripheral blood mononuclear cells (PBMC) is essential for many clinical and research assays. Some studies reported consistent changes in PBMC phenotype following cryopreservation. We hypothesized that PBMC freezing may have a negative impact on estimation of the frequency of T regulatory cell (Treg). Treg levels were measured in 6 fresh PBMC samples isolated from 6 healthy donors and these levels were re-measured after freezing for three weeks. Herein, we report a significant reduction in Treg frequency in all samples following cryopreservation.
Authors
Elkord, Eyad
Affiliation
Clinical Immunotherapy Laboratory, Department of Medical Oncology, University of Manchester, Wilmslow Road, Manchester M204BX, UK. eelkord@picr.man.ac.uk
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Date
2009-08-15
Publisher
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All Paterson Institute for Cancer Research
Immunology
Medical Oncology
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Article
Citation
Frequency of human T regulatory cells in peripheral blood is significantly reduced by cryopreservation. 2009, 347 (1-2):87-90 J. Immunol. Methods
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URI
http://hdl.handle.net/10541/85219
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