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- W2053835753 abstract "In November 1999, universal leucoreduction of blood components was introduced in the UK to minimise the risk of variant Creutzfeldt–Jakob Disease (vCJD) transmission by blood transfusion. The UK specifications for leucodepletion processes state that 99% of leucodepleted components should contain <5×106 leucocytes/unit, within 95% confidence limits. However, this leucocyte concentration is below the detection limits of standard haematology analysers. The development of a fluorometric immunoassay to detect the residual donor leucocytes in leucoreduced blood components is described. Monoclonal antibodies to leucocyte-specific cell surface antigens, CD45 and CD15, were adsorbed to the well surface in 96-well microplates. Red blood cell samples containing low numbers of leucocytes were added to the wells and the cells of interest captured by the monoclonal antibodies. Since leucocytes are the only nucleated cells found in significant numbers in blood components they were quantified using PicoGreen, a fluorescent stain specific for dsDNA. In comparison to flow cytometry, the method currently used to detect low numbers of leucocytes, the microplate assay demonstrated excellent sensitivity (1.00) and acceptable specificity (0.81) when standard leucodepleted samples were tested. There was no significant difference between the two methods (p≤0.175). In conclusion, the fluorescence microplate assay represents a simple, high throughput alternative to flow cytometry for monitoring leucodepletion compliance in blood banks." @default.
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- W2053835753 date "2003-03-01" @default.
- W2053835753 modified "2023-09-27" @default.
- W2053835753 title "Detection of residual donor leucocytes in leucoreduced red blood cell components using a fluorescence microplate assay" @default.
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- W2053835753 doi "https://doi.org/10.1016/s0022-1759(02)00019-4" @default.
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