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Storage of platelet concentrates after high‐dose ultraviolet B irradiation
Author(s) -
Snyder EL,
Beardsley DS,
Smith BR,
Horne W,
Johnson R,
Wooten T,
Napychank PA,
Male P,
Buchholz DH
Publication year - 1991
Publication title -
transfusion
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.045
H-Index - 132
eISSN - 1537-2995
pISSN - 0041-1132
DOI - 10.1046/j.1537-2995.1991.31691306243.x
Subject(s) - platelet , irradiation , blood irradiation therapy , lactate dehydrogenase , apheresis , andrology , chemistry , medicine , immunology , biochemistry , enzyme , physics , nuclear physics
Ultraviolet B (UVB) irradiation of platelet concentrates (PCs) may prevent the development of posttransfusion HLA alloimmunization. As irradiation performed in a blood center or a hospital will probably be associated with a variable postirradiation delay before transfusion, the ability to store PCs after UVB irradiation becomes important. The effects have been studied of a UVB dose of 10,000 mJ per cm2, the dose used in our institution for UVB clinical trials, on PCs pooled and stored for up to 96 hours after irradiation. Results showed that after 96 hours of storage, though there were no changes in pH, platelet count, white cell count, percent discharge of lactate dehydrogenase, or beta‐thromboglobulin, there were significant decreases in morphology score and osmotic recovery. These changes, however, were not evident after 24 hours of storage. Similarly, there was a 60‐percent decrease in immunoreactive membrane glycoprotein (GP) Ib after 96 hours of storage, but these changes were not seen after 48 hours of storage. No changes were seen in levels of GPIIb/IIIa in either group during the 96 hours of storage. On computer‐analyzed two‐dimensional polyacrylamide gel electrophoresis, PCs irradiated at 10,000 mJ per cm2 and stored for 72 hours had changes in over 50 platelet proteins as compared to those proteins in nonirradiated age‐matched control PCs. It can be concluded that UVB irradiation of PCs at 10,000 mJ per cm2 does not lead to significant platelet deterioration after short‐term storage (24‐48 hours) but is likely to be deleterious after long‐term (72‐96 hours) storage. Moreover, UVB induces rotein‐specific alterations stora in the platelet, such as altering GPlb, while leaving GPllb/llla relatively intact.