BACKGROUND: Pathogen reduction technologies (PRTs) increase the safety of the blood supply, but are also associated with cell damage. Our aim was to investigate the effect of Mirasol PRT on platelet (PLT) concentrates stored in plasma and whether the use of a PLT additive solution (PAS) is able to improve in vitro quality. STUDY DESIGN AND METHODS: Twenty-two buffy coats (BCs) were pooled and split into two equal parts. To one half, 2 units of plasma were added, and to the other, 2 units of SSP+ PAS were added. Each part was equally split in half again (to resemble pooling five BCs) and PLT concentrates were prepared. One plasma PLT concentrate was Mirasol treated, and the other served as control; similarly, one SSP+ PLT concentrate was Mirasol treated, and the other not. PLT concentrates were stored for 8 days (n = 12). RESULTS: Mirasol PRT led to elevated lactate production in PLT concentrates in plasma, giving lower pH values throughout storage. The use of SSP+ mostly abrogated this effect, and Mirasol-treated PLT concentrates in SSP+ had only slightly higher lactate production rates and annexin A5 binding as control PLT concentrates in plasma. However, irrespective whether plasma or SSP+ was used, Mirasol PRT led to higher CD62P expression and lower hypotonic shock response (HSR) scores. CONCLUSION: Mirasol treatment leads to higher PLT activation and lower HSR scores both when stored in plasma or SSP+. However, if Mirasol-treated PLTs are stored in SSP+, lactate metabolism and annexin A5 binding are lower, showing that PAS can partly mitigate the effect of PRT. The clinical relevance of this finding needs to be demonstrated.
BACKGROUND: Pathogen reduction technologies (PRTs) increase the safety of the blood supply, but are also associated with cell damage. Our aim was to investigate the effect of Mirasol PRT on platelet (PLT) concentrates stored in plasma and whether the use of a PLT additive solution (PAS) is able to improve in vitro quality. STUDY DESIGN AND METHODS: Twenty-two buffy coats (BCs) were pooled and split into two equal parts. To one half, 2 units of plasma were added, and to the other, 2 units of SSP+ PAS were added. Each part was equally split in half again (to resemble pooling five BCs) and PLT concentrates were prepared. One plasma PLT concentrate was Mirasol treated, and the other served as control; similarly, one SSP+ PLT concentrate was Mirasol treated, and the other not. PLT concentrates were stored for 8 days (n = 12). RESULTS: Mirasol PRT led to elevated lactate production in PLT concentrates in plasma, giving lower pH values throughout storage. The use of SSP+ mostly abrogated this effect, and Mirasol-treated PLT concentrates in SSP+ had only slightly higher lactate production rates and annexin A5 binding as control PLT concentrates in plasma. However, irrespective whether plasma or SSP+ was used, Mirasol PRT led to higher CD62P expression and lower hypotonic shock response (HSR) scores. CONCLUSION: Mirasol treatment leads to higher PLT activation and lower HSR scores both when stored in plasma or SSP+. However, if Mirasol-treated PLTs are stored in SSP+, lactate metabolism and annexin A5 binding are lower, showing that PAS can partly mitigate the effect of PRT. The clinical relevance of this finding needs to be demonstrated.
Authors: Ana Isabel Pérez Aliaga; Gorka Labata; Alfonso Aranda; Marcia Cardoso; Fernando Puente; José María Domingo; Carmen Garcés Journal: Transfus Med Hemother Date: 2021-06-09 Impact factor: 3.747
Authors: Anno Saris; Ivan Peyron; Pieter F van der Meer; Tor B Stuge; Jaap Jan Zwaginga; S Marieke van Ham; Anja Ten Brinke Journal: Front Immunol Date: 2018-06-05 Impact factor: 7.561
Authors: Sanne de Bruin; Emma K van de Weerdt; Davina Sijbrands; Richard Vlaar; Eric Gouwerok; Bart J Biemond; Alexander P J Vlaar; Robin van Bruggen; Dirk de Korte Journal: Transfusion Date: 2019-07-18 Impact factor: 3.157
Authors: Veronika Brixner; Gesine Bug; Petra Pohler; Doris Krämer; Bernd Metzner; Andreas Voss; Jochen Casper; Ulrich Ritter; Stefan Klein; Nael Alakel; Rudolf Peceny; Hans G Derigs; Frank Stegelmann; Martin Wolf; Hubert Schrezenmeier; Thomas Thiele; Erhard Seifried; Hans-Hermann Kapels; Andrea Döscher; Eduard K Petershofen; Thomas H Müller; Axel Seltsam Journal: Haematologica Date: 2021-04-01 Impact factor: 9.941
Authors: Maaike Rijkers; Bart L van den Eshof; Pieter F van der Meer; Floris P J van Alphen; Dirk de Korte; Frank W G Leebeek; Alexander B Meijer; Jan Voorberg; A J Gerard Jansen Journal: Sci Rep Date: 2017-09-08 Impact factor: 4.379