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Arnason NA, Johannsson F, Landrö R, Hardarsson B, Gudmundsson S, Lian AM, Reseland J, Rolfsson O, Sigurjonsson OE. Protein Concentrations in Stored Pooled Platelet Concentrates Treated with Pathogen Inactivation by Amotosalen Plus Ultraviolet a Illumination. Pathogens 2022; 11:pathogens11030350. [PMID: 35335674 PMCID: PMC8954553 DOI: 10.3390/pathogens11030350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 03/10/2022] [Accepted: 03/11/2022] [Indexed: 02/04/2023] Open
Abstract
Platelet granules contain a diverse group of proteins. Upon activation and during storage, platelets release a number of proteins into the circulation or supernatant of stored platelet concentrate (PC). The aim of this work was to investigate the effect of pathogen inactivation (PI) on a selection of proteins released in stored platelets. Materials and Methods: PCs in platelet additive solution (PAS) were produced from whole blood donations using the buffy coat (BC) method. PCs in the treatment arm were pathogen inactivated with amotosalen and UVA, while PCs in the second arm were used as an untreated platelet control. Concentrations of 36 proteins were monitored in the PCs during storage. Results: The majority of proteins increased in concentration over the storage period. In addition, 10 of the 29 proteins that showed change had significantly different concentrations between the PI treatment and the control at one or more timepoints. A subset of six proteins displayed a PI-related drop in concentration. Conclusions: PI has limited effect on protein concentration stored PC supernatant. The protein’s changes related to PI treatment with elevated concentration implicate accelerated Platelet storage lesion (PSL); in contrast, there are potential novel benefits to PI related decrease in protein concentration that need further investigation.
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Affiliation(s)
- Niels Arni Arnason
- The Blood Bank, Landspitali-The National University Hospital of Iceland, 105 Reykjavik, Iceland; (N.A.A.); (R.L.); (B.H.); (S.G.)
- School of Engineering, Reykjavik University, 105 Reykjavik, Iceland
| | - Freyr Johannsson
- Department of Medicine, University of Iceland, 105 Reykjavik, Iceland; (F.J.); (O.R.)
| | - Ragna Landrö
- The Blood Bank, Landspitali-The National University Hospital of Iceland, 105 Reykjavik, Iceland; (N.A.A.); (R.L.); (B.H.); (S.G.)
| | - Björn Hardarsson
- The Blood Bank, Landspitali-The National University Hospital of Iceland, 105 Reykjavik, Iceland; (N.A.A.); (R.L.); (B.H.); (S.G.)
| | - Sveinn Gudmundsson
- The Blood Bank, Landspitali-The National University Hospital of Iceland, 105 Reykjavik, Iceland; (N.A.A.); (R.L.); (B.H.); (S.G.)
| | - Aina-Mari Lian
- Institute of Clinical Dentistry, Faculty of Dentistry, University of Oslo, 0317 Oslo, Norway; (A.-M.L.); (J.R.)
| | - Janne Reseland
- Institute of Clinical Dentistry, Faculty of Dentistry, University of Oslo, 0317 Oslo, Norway; (A.-M.L.); (J.R.)
| | - Ottar Rolfsson
- Department of Medicine, University of Iceland, 105 Reykjavik, Iceland; (F.J.); (O.R.)
| | - Olafur E. Sigurjonsson
- The Blood Bank, Landspitali-The National University Hospital of Iceland, 105 Reykjavik, Iceland; (N.A.A.); (R.L.); (B.H.); (S.G.)
- School of Engineering, Reykjavik University, 105 Reykjavik, Iceland
- Correspondence: ; Tel.: +354-543-5523 or +354-694-9427; Fax: +354-543-5532
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Lazebnik Y. Cell fusion as a link between the SARS-CoV-2 spike protein, COVID-19 complications, and vaccine side effects. Oncotarget 2021; 12:2476-2488. [PMID: 34917266 PMCID: PMC8664391 DOI: 10.18632/oncotarget.28088] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Accepted: 09/24/2021] [Indexed: 12/23/2022] Open
Abstract
A distinctive feature of the SARS-CoV-2 spike protein is its ability to efficiently fuse cells, thus producing syncytia found in COVID-19 patients. This commentary proposes how this ability enables spike to cause COVID-19 complications as well as side effects of COVID-19 vaccines, and suggests how these effects can be prevented.
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