1
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Hosseini E, Taherabadi E, Rajabi A, Ghasemzadeh M. Reduction of ristocetin-induced platelet aggregation (RIPA) during storage despite plasma renewal: evidence for hemostatic importance of GPIbα shedding. Expert Rev Hematol 2024; 17:391-403. [PMID: 38889268 DOI: 10.1080/17474086.2024.2370557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Accepted: 03/25/2024] [Indexed: 06/20/2024]
Abstract
BACKGROUND Platelet storage is complicated by deleterious changes, among which reduction of ristocetin-induced platelet aggregation (RIPA) has a poorly understood mechanism. The study elucidates the mechanistic roles of all the possible players in this process. RESEARCH DESIGN AND METHODS PRP-platelet concentrates were subjected to RIPA, collagen-induced platelet aggregation (CIPA), and flowcytometric analysis of GPIbα and PAC-1 binding from days 0 to 5 of storage. Platelet-poor plasma was subjected to colorimetric assays for glucose/LDH evaluation and automatic analyzer to examine VWF antigen and activity. RESULTS From day three of platelet storage, reducing CIPA but not RIPA was correlated with the reduction of both metabolic state and integrin activity. RIPA reduction was directly related to the decreased levels of total-content/expression of GPIbα, and inversely related to its shedding levels during storage. Re-suspension of 5-day stored platelet in fresh plasma compensated CIPA, but not RIPA. VWF concentration and its activity did not change during storage while they had no correlation with RIPA. CONCLUSIONS This study identified the irreversible loss of platelet GPIbα, but not VWF status, as the primary cause of the storage-dependent decrease of RIPA. Unlike CIPA, this observation was not compensated by plasma refreshment, suggesting that some evidence of PSL may not be recovered after transfusion.
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Affiliation(s)
- Ehteramolsadat Hosseini
- Blood Transfusion Research Center, High Institute for Research and Education in Transfusion Medicine, Tehran, Iran
| | - Emad Taherabadi
- Blood Transfusion Research Center, High Institute for Research and Education in Transfusion Medicine, Tehran, Iran
| | - Ali Rajabi
- Blood Transfusion Research Center, High Institute for Research and Education in Transfusion Medicine, Tehran, Iran
| | - Mehran Ghasemzadeh
- Blood Transfusion Research Center, High Institute for Research and Education in Transfusion Medicine, Tehran, Iran
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2
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Nash J, Davies A, Saunders CV, George CE, Williams JO, James PE. Quantitative increases of extracellular vesicles in prolonged cold storage of platelets increases the potential to enhance fibrin clot formation. Transfus Med 2023; 33:467-477. [PMID: 37553476 DOI: 10.1111/tme.12989] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 07/04/2023] [Accepted: 07/26/2023] [Indexed: 08/10/2023]
Abstract
BACKGROUND Platelet derived extracellular vesicles (EVs) display a pro-coagulant phenotype and are generated throughout platelet concentrate (PC) storage. Cold storage (CS) of PCs is thought to provide a superior haemostatic advantage over room temperature (RT) storage and could prolong the storage time. However, the effect of storage conditions on EV generation and PC function is unknown. We investigated EV production under CS and RT conditions and assessed whether these EVs exhibited a more pro-coagulant phenotype in model experiments. MATERIALS AND METHODS Buffy-coat-derived PCs in a platelet additive solution (PAS) to plasma ratio of approximately 65:35 were stored at RT (22 ± 2°C) or CS (4 ± 2°C) for a prolonged storage duration of 20 days. Impedance aggregometry assessed platelet function. EVs were isolated throughout storage and quantified using nanoparticle tracking analysis. EVs were applied to a coagulation assay to assess the impact on fibrin clot formation and lysis. RESULTS CS produced significantly larger EVs from day 4 onwards. EV concentration was significantly increased in CS compared to RT from day 15. EVs, regardless of storage, significantly reduced time to clot formation and maximum optical density measured compared to the no EV control. Clot formation was proportionate to the number of EV applied but was not statistically different across storage conditions when corrected for EV number. CONCLUSION EVs in CS and RT units showed similar clot formation capacity. However, the higher number of larger EVs generated in CS compared to RT suggests PC units derived from CS conditions may overall exhibit a haemostatically superior capacity compared to RT storage.
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Affiliation(s)
- J Nash
- Cardiff School of Sport and Health Sciences, Cardiff Metropolitan University, Cardiff, UK
- Component Development and Research Laboratory, Welsh Blood Service, Pontyclun, UK
| | - A Davies
- Cardiff School of Sport and Health Sciences, Cardiff Metropolitan University, Cardiff, UK
| | - C V Saunders
- Component Development and Research Laboratory, Welsh Blood Service, Pontyclun, UK
| | - C E George
- Component Development and Research Laboratory, Welsh Blood Service, Pontyclun, UK
| | - J O Williams
- Cardiff School of Sport and Health Sciences, Cardiff Metropolitan University, Cardiff, UK
| | - P E James
- Cardiff School of Sport and Health Sciences, Cardiff Metropolitan University, Cardiff, UK
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3
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Tynngård N, Alshamari A, Sandgren P, Kenny D, Vasilache AM, Abedi MR, Ramström S. High fragmentation in platelet concentrates impacts the activation, procoagulant, and aggregatory capacity of platelets. Platelets 2023; 34:2159018. [PMID: 36632714 DOI: 10.1080/09537104.2022.2159018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Platelets are transfused to patients to prevent bleeding. Since both preparation and storage can impact the hemostatic functions of platelets, we studied platelet concentrates (PCs) with different initial composition in regard to platelet fragmentation and its impact on storage-induced changes in activation potential. Ten whole blood derived PCs were assessed over 7 storage days. Using flow cytometry, platelet (CD41+) subpopulations were characterized for activation potential using activation markers (PAC-1, P-selectin, and LAMP-1), phosphatidylserine (Annexin V), and mitochondrial integrity (DiIC1(5)). Aggregation response, coagulation, and soluble activation markers (cytokines and sGPVI) were also measured. Of the CD41+ events, the PCs contained a median of 82% normal-sized platelets, 10% small platelets, and 8% fragments. The small platelets exhibited procoagulant hallmarks (increased P-selectin and Annexin V and reduced DiIC1(5)). Normal-sized platelets responded to activation, whereas activation potential was decreased for small and abolished for fragments. Five PCs contained a high proportion of small platelets and fragments (median of 28% of CD41+ events), which was significantly higher than the other five PCs (median of 9%). A high proportion of small platelets and fragments was associated with procoagulant hallmarks and decreased activation potential, but, although diminished, they still retained some activation potential throughout 7 days storage.
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Affiliation(s)
- Nahreen Tynngård
- Department of Clinical Chemistry and Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden.,Research and Development Unit in Region Östergötland and Department of Health, Medicine and Caring Sciences, Linköping University, Linköping, Sweden
| | - Aseel Alshamari
- Department of Clinical Immunology and Transfusion medicine, Faculty of Medicine and Health, Örebro University, Sweden.,Cardiovascular Research Centre, School of Medical Sciences, Faculty of Medicine and Health, Örebro University, Örebro, Sweden
| | - Per Sandgren
- Department of Clinical Science, Intervention and Technology (CLINTEC), Karolinska Institutet, Stockholm, Sweden
| | - Dermot Kenny
- Clinical Research Centre, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Ana Maria Vasilache
- Department of Clinical Immunology and Transfusion Medicine, and Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - Mohammad R Abedi
- Department of Clinical Immunology and Transfusion medicine, Faculty of Medicine and Health, Örebro University, Sweden
| | - Sofia Ramström
- Department of Clinical Chemistry and Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden.,Cardiovascular Research Centre, School of Medical Sciences, Faculty of Medicine and Health, Örebro University, Örebro, Sweden
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4
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Chen S, Zang Y, Wang L, Zheng J, Deng H, Li M, Li Y, Qian B, Lu Y. Evaluation of a rail logistics transmission system for the transportation of blood components within a medical centre. Vox Sang 2023; 118:955-965. [PMID: 37673798 DOI: 10.1111/vox.13527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 08/14/2023] [Accepted: 08/20/2023] [Indexed: 09/08/2023]
Abstract
BACKGROUND AND OBJECTIVES Rail logistics transmission systems (RLTSs) are commonly used for the transportation of blood samples, pathological specimens and other medical materials in many hospitals, as they are rapid, secure, cost-effective and intelligent. However, few studies have evaluated blood component transportation from blood banks to the patient care areas of hospitals using RLTS. In this study, we evaluate the RLTS used for the transportation of blood components within a medical centre. MATERIALS AND METHODS The dispatch of blood components, including packed red blood cells (pRBCs), fresh frozen plasma (FFP), cryoprecipitate and platelet units, from a blood bank to critical care areas or general wards was done using RLTS. Parameters such as the delivery time, temperature, physical integrity and blood component quality were evaluated via analytical testing using specimens obtained before and after transportation by RLTS. RESULTS The turnaround time and temperature of all tested blood units via RLTS transportation were able to meet the clinical demands of blood component delivery (median time: 323 s [118-668 s]; temperature variation: 4.5-8.9°C for pRBCs and FFP and 21.5-23.5°C for cryoprecipitate and platelet units). Furthermore, parameters of pRBC quality, including the haemolysis index and potassium and lactate dehydrogenase levels in plasma, were not significantly different before and after transportation through RLTS. Similarly, RLTS transportation affected neither the basic coagulation test results in FFP and cryoprecipitate specimens nor platelet aggregation and activation markers in apheresis platelet specimens. CONCLUSION Hospital-wide delivery of blood components via RLTS seems to be safe, reliable and cost-effective and does not have any negative impact on blood quality. Therefore, the establishment of standard criteria, protocols and guidelines based on further studies is needed.
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Affiliation(s)
- Shaoheng Chen
- Department of Blood Transfusion, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yan Zang
- Department of Blood Transfusion, The First Affiliated Hospital of Naval Medical University, Shanghai, China
| | - Lili Wang
- Department of Blood Transfusion, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jun Zheng
- Department of Blood Transfusion, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Huimin Deng
- Department of Blood Transfusion, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Meiting Li
- Department of Blood Transfusion, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yaohua Li
- Department of Blood Transfusion, The First Affiliated Hospital of Naval Medical University, Shanghai, China
| | - Baohua Qian
- Department of Laboratory Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yuanshan Lu
- Department of Blood Transfusion, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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5
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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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6
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Assessment of apheresis platelets during 5 days of storage: A National Cancer Institute, Cairo University experience. Transfus Apher Sci 2021; 61:103327. [PMID: 34876357 DOI: 10.1016/j.transci.2021.103327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 10/31/2021] [Accepted: 11/22/2021] [Indexed: 11/21/2022]
Abstract
BACKGROUND Platelet transfusion therapy is widely used to prevent hemorrhage in patients with thrombocytopenia and platelet disorders. The platelet concentrate (PC) quality is affected by increased storage time, as reflected in the decreased number of platelets, morphological changes, and impaired functions. This study aimed to analyze the impact of 5 days storage on platelets count and the expression of CD63, and Annexin V as activation markers during PC storage. METHODS Fifty PCs collected from single donors were tested for platelet count on days 0, 3, and 5 using a Sysmex blood counter. CD61, CD63, and Annexin V expression was analyzed by a multicolor Navios flow cytometer. RESULTS There was a significant decrease in platelet count during 5 days of storage. There was a direct relationship between storage time and degree of platelet activation. CD63 had almost double increased expression on day 5 than day 3. Annexin V showed significantly increased expression on day 3 with minor differences between days 3 and 5. CONCLUSION According to standard blood bank conditions, PC stored for 5 days showed a degree of in vitro activation as evidenced by CD63 and Annexin V expression, may lead to reduced therapeutic efficacy. Flow cytometry monitoring platelet activation in PC offers a better understanding of the changes during PC storage and may help improve platelet products.
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7
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Holdfeldt A, Lind S, Hesse C, Dahlgren C, Forsman H. The PAR4-derived pepducin P4Pal 10 lacks effect on neutrophil GPCRs that couple to Gαq for signaling but distinctly modulates function of the Gαi-coupled FPR2 and FFAR2. Biochem Pharmacol 2020; 180:114143. [PMID: 32653592 DOI: 10.1016/j.bcp.2020.114143] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 07/03/2020] [Accepted: 07/07/2020] [Indexed: 12/18/2022]
Abstract
A novel mechanism of action was described for the protease-activated receptor 4 (PAR4)-derived pepducin (P4Pal10), when it was shown to exhibit inhibitory efficacy towards G protein coupling to multiple Gαq-coupled receptors (Carr, R., 3rd et al., Mol. Pharmacol. 2016(89) 94). We could confirm that P4Pal10, similar to an earlier-characterized Gαq inhibitor (YM-254890), inhibited platelet aggregation induced by agonists for the Gαq-coupled receptors PAR1 and PAR4. Next, we applied P4Pal10 as a tool compound and investigated its modulatory effect on several Gαq- and Gαi-coupled GPCRs expressed by human neutrophils. P4Pal10 had, however, no inhibitory effects on signaling downstream of the Gαq-coupled receptors for ATP (P2Y2R) and PAF (PAFR). Instead, P4Pal10 inhibited signaling downstream the Gαi-coupled FPR2. The inhibition was not due to a direct effect on Gαi as the closely related FPR1 was unaffected. In addition, we found that the pepducin activated allosterically modulated short chain fatty acid receptor (FFAR2), a Gαi/Gαq coupled GPCR that is functionally expressed in neutrophils. Taken together, we show that pepducins are unique tool-compounds for mechanistic studies of GPCR signaling and modulation in neutrophils. The data presented add also lipopeptides into the known ligand recognition lists for the two pattern recognition receptors FPR2 and FFAR2, receptors that primarily sense formylated peptides and short free fatty acids, respectively, inflammatory mediators of microbial origin.
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Affiliation(s)
- André Holdfeldt
- Department of Rheumatology and Inflammation Research, Institute of Medicine at the Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
| | - Simon Lind
- Department of Rheumatology and Inflammation Research, Institute of Medicine at the Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Camilla Hesse
- Department for Laboratory Medicine, Institute for Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Claes Dahlgren
- Department of Rheumatology and Inflammation Research, Institute of Medicine at the Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Huamei Forsman
- Department of Rheumatology and Inflammation Research, Institute of Medicine at the Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
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8
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Kjellberg G, Holm M, Lindvall G, Gryfelt G, Linden J, Wikman A. Platelet function analysed by ROTEM platelet in cardiac surgery after cardiopulmonary bypass and platelet transfusion. Transfus Med 2020; 30:369-376. [DOI: 10.1111/tme.12678] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Revised: 03/29/2019] [Accepted: 02/25/2020] [Indexed: 01/10/2023]
Affiliation(s)
- Gunilla Kjellberg
- Department of Thoracic Surgery and Anesthesia Academic Hospital Uppsala Sweden
- Department of Surgical Sciences, Anesthesiology and Intensive Care Uppsala University Uppsala Sweden
| | - Manne Holm
- Department of Molecular Medicine and Surgery Karolinska Institutet Stockholm Sweden
- Division of Perioperative Medicine and Intensive Care Karolinska University Hospital Huddinge Sweden
| | - Gabriella Lindvall
- Department of Molecular Medicine and Surgery Karolinska Institutet Stockholm Sweden
- Division of Perioperative Medicine and Intensive Care, Section Cardiothoracic Surgery and Anesthesiology Karolinska University Hospital Stockholm Sweden
| | - Gunilla Gryfelt
- Division of Clinical Immunology and Transfusion Medicine Karolinska University Hospital Sweden
| | - Jan Linden
- Department of Molecular Medicine and Surgery Karolinska Institutet Stockholm Sweden
- Division of Perioperative Medicine and Intensive Care, Section Cardiothoracic Surgery and Anesthesiology Karolinska University Hospital Stockholm Sweden
| | - Agneta Wikman
- Division of Clinical Immunology and Transfusion Medicine Karolinska University Hospital Sweden
- Department of Laboratory Medicine Karolinska Institutet Stockholm Sweden
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9
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Arnason NA, Johannson F, Landrö R, Hardarsson B, Irsch J, Gudmundsson S, Rolfsson O, Sigurjonsson OE. Pathogen inactivation with amotosalen plus UVA illumination minimally impacts microRNA expression in platelets during storage under standard blood banking conditions. Transfusion 2019; 59:3727-3735. [PMID: 31674051 DOI: 10.1111/trf.15575] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 09/15/2019] [Accepted: 10/03/2019] [Indexed: 12/13/2022]
Abstract
BACKGROUND To reduce the risk of transfusion transmission infection, nucleic acid targeted methods have been developed to inactivate pathogens in PCs. miRNAs have been shown to play an important role in platelet function, and changes in the abundance of specific miRNAs during storage have been observed, as have perturbation effects related to pathogen inactivation (PI) methods. The aim of this work was to investigate the effects of PI on selected miRNAs during storage. STUDY DESIGN AND METHODS Using a pool and split strategy, 3 identical buffy coat PC units were generated from a pool of 24 whole blood donors. Each unit received a different treatment: 1) Untreated platelet control in platelet additive solution (C-PAS); 2) Amotosalen-UVA-treated platelets in PAS (PI-PAS); and 3) untreated platelets in donor plasma (U-PL). PCs were stored for 7 days under standard blood banking conditions. Standard platelet quality control (QC) parameters and 25 selected miRNAs were analyzed. RESULTS During the 7-day storage period, differences were found in several QC parameters relating to PI treatment and storage in plasma, but overall the three treatments were comparable. Out of 25 miRNA tested changes in regulation of 5 miRNA in PI-PAS and 3 miRNA U-PL where detected compared to C-PAS. A statistically significant difference was observed in down regulations miR-96-5p on Days 2 and 4, 61.9% and 61.8%, respectively, in the PI-PAS treatment. CONCLUSION Amotosalen-UVA treatment does not significantly alter the miRNA profile of platelet concentrates generated and stored using standard blood banking conditions.
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Affiliation(s)
- Niels Arni Arnason
- The Blood Bank, Landspitali - The National University Hospital of Iceland, Reykjavik, Iceland
| | - Freyr Johannson
- Department of Medicine, University of Iceland, Reykjavik, Iceland
| | - Ragna Landrö
- The Blood Bank, Landspitali - The National University Hospital of Iceland, Reykjavik, Iceland
| | - Björn Hardarsson
- The Blood Bank, Landspitali - The National University Hospital of Iceland, Reykjavik, Iceland
| | | | - Sveinn Gudmundsson
- The Blood Bank, Landspitali - The National University Hospital of Iceland, Reykjavik, Iceland
| | - Ottar Rolfsson
- Department of Medicine, University of Iceland, Reykjavik, Iceland
| | - Olafur E Sigurjonsson
- The Blood Bank, Landspitali - The National University Hospital of Iceland, Reykjavik, Iceland.,School of Science and Engineering, Reykjavik University, Reykjavik, Iceland
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10
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Asmis L, Moldenhauer A, Hitzler W, Hellstern P. Comparison of platelet function tests for the in vitro quality assessment of platelet concentrates produced under real-life conditions. Platelets 2018; 30:720-727. [PMID: 30204045 DOI: 10.1080/09537104.2018.1513471] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Platelet quality in different platelet concentrates (PCs) has been the subject of several studies. Nonetheless, there is a lack of robust data on the correlation and agreement among platelet function tests as a prerequisite for the association of PC functionality in vitro with platelet function in vivo post PC transfusion. The purpose of our study was to correlate a larger panel of platelet function assays in PCs and to assess whether the methods agree sufficiently and can be used interchangeably. Twelve apheresis platelet concentrates in plasma (APC), 16 pooled platelet concentrates in plasma (PPC), and 12 PPC in T-sol (PPCA) were examined on days 1 and 4 after production. PCs were tested for platelet count, light transmission aggregation (LTA) induced by ADP, collagen, or TRAP; platelet ATP release induced by collagen; and spontaneous and ADP and TRAP-induced increase in CD62P and PAC1 expression measured by flow cytometry. All tests were performed in undiluted platelet-rich plasma, recalcified and mixed with an inhibitor of factor Xa and thrombin. Most platelet function parameters correlated significantly with each other, but agreement among methods was insufficient. A proper inverse correlation was observed between ADP-induced LTA and spontaneous platelet activation assessed by CD62P expression (r = -0.61, p < 0.0001). Spontaneous CD62P correlated also significantly with spontaneous PAC1 (r = 0.69, p < 0.0001) and inversely with TRAP-induced CD62P expression (r = -0.86, p < 0.0001). We found significant correlations among all flow cytometric assays measuring platelet CD62P and PAC1 expression induced by ADP or TRAP. Subsequent Bland Altman analysis revealed insufficient agreement between methods. With one exception (collagen-induced LTA compared with TRAP-induced LTA, percentage error = 16%) the limits of agreement expressed as percentage error exceeded the chosen acceptable difference of 30%. In APC, platelet count was 41% and 44% higher, respectively, than in PPC and PPCA (p < 0.0001). Spontaneous CD62P and PAC1 expression were significantly greater, and ADP-induced aggregation and agonist-induced increase in CD62P and PAC1 were significantly lower in PPCA compared to APC and PPC on day 4 of storage. ADP and TRAP-induced CD62P and PAC1 activatability fell significantly during storage between day 1 and day 4 in APC and PPCA, but not in PPC. In conclusion, different platelet function tests capture different aspects of platelet function and do not correlate and agree sufficiently to be used interchangeably.
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Affiliation(s)
- Lars Asmis
- a Center of Perioperative Thrombosis and Hemostasis , Zurich , Switzerland
| | - Anja Moldenhauer
- b Institute of Laboratory Diagnostics, Hygiene and Transfusion Medicine , Academic City Hospital , Ludwigshafen , Germany
| | - Walter Hitzler
- c Transfusion Center , University Medical Center of the Johannes Gutenberg University , Mainz , Germany
| | - Peter Hellstern
- d Center of Hemostasis and Thrombosis Zurich , Zurich , Switzerland
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11
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Sperling S, Vinholt PJ, Sprogøe U, Yazer MH, Frederiksen H, Nielsen C. The effects of storage on platelet function in different blood products. ACTA ACUST UNITED AC 2018; 24:89-96. [PMID: 30170538 DOI: 10.1080/10245332.2018.1516599] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
OBJECTIVES Reduced platelet (PLT) function during storage has been shown for buffy-coat-derived platelet concentrates (BCP) and apheresis platelet units (AP), while for whole blood (WB) it has not been well studied. The aim of this study was to investigate PLT function in these blood products throughout storage using a novel flow cytometric assay. METHODS Flow cytometric measurement of agonist-induced platelet aggregation, CD62P expression and PAC-1 binding during storage in BCP, AP (1-9 days at 20°C) and WB (1-21 days at 2-6°C). RESULTS PLT-aggregation capacity decreased from day 1 to day 7 for almost all product-agonist combinations (P = .004 to P = .029) with aggregation capacity of WB being similar to that of AP and BCP. WB aggregation capacity remained relatively unchanged from day 7 to day 21. For all blood products, the fraction of agonist-induced CD62P-expression remained high and the fraction of PAC-1 binding decreased during storage. WB PLTs underwent only small changes in CD62P expression and PAC-1 binding from day 7 to day 21. CONCLUSION This study found PLT aggregation in WB stored at 4°C to be as least as good as for BCP and AP stored at 20°C. WB retained significant PLT-aggregation capacity to day 21.
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Affiliation(s)
- Signe Sperling
- a Department of Hematology , Odense University Hospital , Odense , Denmark.,b Department of Clinical Immunology , Odense University Hospital , Odense , Denmark.,c University of Southern Denmark , Odense , Denmark
| | - Pernille J Vinholt
- d Department of Clinical Biochemistry and Pharmacology , Odense University Hospital , Odense , Denmark
| | - Ulrik Sprogøe
- b Department of Clinical Immunology , Odense University Hospital , Odense , Denmark
| | - Mark H Yazer
- c University of Southern Denmark , Odense , Denmark.,e Department of Pathology , University of Pittsburgh , Pittsburgh , PA , USA
| | - Henrik Frederiksen
- a Department of Hematology , Odense University Hospital , Odense , Denmark
| | - Christian Nielsen
- b Department of Clinical Immunology , Odense University Hospital , Odense , Denmark
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12
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Napolitano M, Mancuso S, Lo Coco L, Arfò PS, Raso S, De Francisci G, Dieli F, Caccamo N, Reina A, Dolce A, Agliastro R, Siragusa S. Buffy coat-derived platelets cryopreserved using a new method: Results from in vitro studies. Transfus Apher Sci 2018; 57:578-581. [PMID: 30100202 DOI: 10.1016/j.transci.2018.07.020] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2018] [Revised: 07/08/2018] [Accepted: 07/23/2018] [Indexed: 01/07/2023]
Abstract
Cryopreservation for the long-term storage of platelets (PLTs) is a useful method to overcome the limits of platelet shortage. This is an in vitro prospective study to evaluate the count, viability, and function of buffy coat-derived pooled platelet concentrates (BC-PLTs), treated with dimethyl sulphoxide (DMSO) and cryopreserved (CRY BC-PLTs) at -80 °C with a modified Valeri method. PLTs were stored in 6% DMSO with a patented kit. Overall, 49 BC-PLTs from 245 healthy volunteer donors were prepared, cryopreserved, and analysed before and after 3, 6, and 9 months of storage. In flow cytometry, a statistically significant reduction in CD 42b (92.7 ± 4.29% at T0 vs. 23.6 ± 27.5% at T3, 16.38 ± 12.54% at T6, and 17.3 ± 9.6% at T9) and PAC-1 (1.9 ± 1.34% at T0 vs. 0.62 ± 0.4% at T3, 0.63 ± 0.83% at T6, and 0.49 ± 0.48% at T9) was observed after storage. CRY BC-PLTs showed a good and stable endogenous thrombin generation potential (nM min): 529.25 ± 98.64 at T0 vs. 533.04 ± 103.15 at T9 months. CRY BC-PLTs showed a good viability in vitro, according to currently accepted criteria for cryopreserved PLTs.
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Affiliation(s)
- Mariasanta Napolitano
- Dipartimento Biomedico di Medicina Interna e Specialistica, UOC Ematologia con Trapianto, Università di Palermo, Palermo, Italy.
| | - Salvatrice Mancuso
- Dipartimento Biomedico di Medicina Interna e Specialistica, UOC Ematologia con Trapianto, Università di Palermo, Palermo, Italy
| | - Lucio Lo Coco
- Laboratorio Centralizzato Policlinico "P.Giaccone", Sezione Emostasi e Trombosi, Palermo, Italy
| | - Piera Stefania Arfò
- Dipartimento Biomedico di Medicina Interna e Specialistica, UOC Ematologia con Trapianto, Università di Palermo, Palermo, Italy
| | - Simona Raso
- Dipartimento Biomedico di Medicina Interna e Specialistica, UOC Ematologia con Trapianto, Università di Palermo, Palermo, Italy
| | - Giovanni De Francisci
- Unità di Medicina Trasfusionale ed Immunoematologia, Ospedale "Civico" Palermo, Italy
| | - Francesco Dieli
- Laboratorio di Ricerca CLADIBIOR, Università di Palermo, Palermo, Italy
| | - Nadia Caccamo
- Laboratorio di Ricerca CLADIBIOR, Università di Palermo, Palermo, Italy
| | | | | | - Rosalia Agliastro
- Unità di Medicina Trasfusionale ed Immunoematologia, Ospedale "Civico" Palermo, Italy
| | - Sergio Siragusa
- Dipartimento Biomedico di Medicina Interna e Specialistica, UOC Ematologia con Trapianto, Università di Palermo, Palermo, Italy
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13
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Salunkhe V, De Cuyper IM, Papadopoulos P, van der Meer PF, Daal BB, Villa-Fajardo M, de Korte D, van den Berg TK, Gutiérrez L. A comprehensive proteomics study on platelet concentrates: Platelet proteome, storage time and Mirasol pathogen reduction technology. Platelets 2018; 30:368-379. [PMID: 29553857 DOI: 10.1080/09537104.2018.1447658] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Platelet concentrates (PCs) represent a blood transfusion product with a major concern for safety as their storage temperature (20-24°C) allows bacterial growth, and their maximum storage time period (less than a week) precludes complete microbiological testing. Pathogen inactivation technologies (PITs) provide an additional layer of safety to the blood transfusion products from known and unknown pathogens such as bacteria, viruses, and parasites. In this context, PITs, such as Mirasol Pathogen Reduction Technology (PRT), have been developed and are implemented in many countries. However, several studies have shown in vitro that Mirasol PRT induces a certain level of platelet shape change, hyperactivation, basal degranulation, and increased oxidative damage during storage. It has been suggested that Mirasol PRT might accelerate what has been described as the platelet storage lesion (PSL), but supportive molecular signatures have not been obtained. We aimed at dissecting the influence of both variables, that is, Mirasol PRT and storage time, at the proteome level. We present comprehensive proteomics data analysis of Control PCs and PCs treated with Mirasol PRT at storage days 1, 2, 6, and 8. Our workflow was set to perform proteomics analysis using a gel-free and label-free quantification (LFQ) approach. Semi-quantification was based on LFQ signal intensities of identified proteins using MaxQuant/Perseus software platform. Data are available via ProteomeXchange with identifier PXD008119. We identified marginal differences between Mirasol PRT and Control PCs during storage. However, those significant changes at the proteome level were specifically related to the functional aspects previously described to affect platelets upon Mirasol PRT. In addition, the effect of Mirasol PRT on the platelet proteome appeared not to be exclusively due to an accelerated or enhanced PSL. In summary, semi-quantitative proteomics allows to discern between proteome changes due to Mirasol PRT or PSL, and proves to be a methodology suitable to phenotype platelets in an unbiased manner, in various physiological contexts.
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Affiliation(s)
- Vishal Salunkhe
- a Department of Blood Cell Research , Sanquin Research and Landsteiner Laboratory, Academic Medical Centre (AMC), University of Amsterdam (UvA) , Amsterdam , The Netherlands
| | - Iris M De Cuyper
- a Department of Blood Cell Research , Sanquin Research and Landsteiner Laboratory, Academic Medical Centre (AMC), University of Amsterdam (UvA) , Amsterdam , The Netherlands
| | - Petros Papadopoulos
- b Department of Hematology , Hospital Clínico San Carlos, Instituto de Investigación Sanitaria San Carlos (IdISSC) , Madrid , Spain
| | - Pieter F van der Meer
- c Department of Product and Process Development , Sanquin Blood Bank , Amsterdam , The Netherlands
| | - Brunette B Daal
- c Department of Product and Process Development , Sanquin Blood Bank , Amsterdam , The Netherlands
| | - María Villa-Fajardo
- b Department of Hematology , Hospital Clínico San Carlos, Instituto de Investigación Sanitaria San Carlos (IdISSC) , Madrid , Spain
| | - Dirk de Korte
- a Department of Blood Cell Research , Sanquin Research and Landsteiner Laboratory, Academic Medical Centre (AMC), University of Amsterdam (UvA) , Amsterdam , The Netherlands.,c Department of Product and Process Development , Sanquin Blood Bank , Amsterdam , The Netherlands
| | - Timo K van den Berg
- a Department of Blood Cell Research , Sanquin Research and Landsteiner Laboratory, Academic Medical Centre (AMC), University of Amsterdam (UvA) , Amsterdam , The Netherlands
| | - Laura Gutiérrez
- a Department of Blood Cell Research , Sanquin Research and Landsteiner Laboratory, Academic Medical Centre (AMC), University of Amsterdam (UvA) , Amsterdam , The Netherlands.,b Department of Hematology , Hospital Clínico San Carlos, Instituto de Investigación Sanitaria San Carlos (IdISSC) , Madrid , Spain
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14
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Singh S, Shams Hakimi C, Jeppsson A, Hesse C. Platelet storage lesion in interim platelet unit concentrates: A comparison with buffy-coat and apheresis concentrates. Transfus Apher Sci 2017; 56:870-874. [PMID: 29126740 DOI: 10.1016/j.transci.2017.10.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Revised: 10/12/2017] [Accepted: 10/16/2017] [Indexed: 11/25/2022]
Abstract
Platelet storage lesion is characterized by morphological changes and impaired platelet function. The collection method and storage medium may influence the magnitude of the storage lesion. The aim of this study was to compare the newly introduced interim platelet unit (IPU) platelet concentrates (PCs) (additive solution SSP+, 40% residual plasma content) with the more established buffy-coat PCs (SSP, 20% residual plasma content) and apheresis PCs (autologous plasma) in terms of platelet storage lesions. Thirty PCs (n=10 for each type) were assessed by measuring metabolic parameters (lactate, glucose, and pH), platelet activation markers, and in vitro platelet aggregability on days 1, 4, and 7 after donation. The expression of platelet activation markers CD62p (P-selectin), CD63 (LAMP-3), and phosphatidylserine was measured using flow cytometry and in vitro aggregability was measured with multiple electrode aggregometry. Higher platelet activation and lower in vitro aggregability was observed in IPU than in buffy-coat PCs on day 1 after donation. In contrast, metabolic parameters, expression of platelet activation markers, and in vitro aggregability were better maintained in IPU than in buffy-coat PCs at the end of the storage period. Compared to apheresis PCs, IPU PCs had higher expression of activation markers and lower in vitro aggregability throughout storage. In conclusion, the results indicate that there are significant differences in platelet storage lesions between IPU, buffy-coat, and apheresis PCs. The quality of IPU PCs appears to be at least comparable to buffy-coat preparations. Further studies are required to distinguish the effect of the preparation methods from storage conditions.
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Affiliation(s)
- Sukhi Singh
- Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Caroline Shams Hakimi
- Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Anders Jeppsson
- Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden; Department of Cardiothoracic Surgery, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Camilla Hesse
- Department of Clinical Chemistry and Transfusion Medicine, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden; Regional Blood Bank, Sahlgrenska University Hospital, Gothenburg, Sweden.
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15
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Hansson EC, Malm CJ, Hesse C, Hornestam B, Dellborg M, Rexius H, Jeppsson A. Platelet function recovery after ticagrelor withdrawal in patients awaiting urgent coronary surgery. Eur J Cardiothorac Surg 2017; 51:633-637. [PMID: 28007881 DOI: 10.1093/ejcts/ezw373] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Accepted: 10/10/2016] [Indexed: 01/06/2023] Open
Abstract
Objective Dual antiplatelet therapy with ticagrelor and aspirin is associated with an increased risk of perioperative bleeding complications. Current guidelines recommend therefore discontinuation of ticagrelor 5 days before surgery to allow sufficient recovery of platelet function. It is not known how the time to recovery varies between individual patients after discontinuation of ticagrelor. Methods Twenty-five patients accepted for urgent coronary artery bypass surgery and treated with ticagrelor and aspirin were included in a prospective observational study. Platelet aggregation was evaluated with impedance aggregometry at five timepoints 12-96 h after discontinuation of ticagrelor. In a subset of patients ( n = 15), we also tested the ex vivo efficacy of platelet concentrate supplementation on platelet aggregation. Results There was a gradual increase in mean adenosine diphosphate-induced platelet aggregation after discontinuation of ticagrelor. After 72 h, mean aggregation was 38 ±23 aggregation units (U), which is above a previously suggested cut-off of 22 U, when patients can be operated without increased bleeding risk. However, there was a large interindividual variability (range 4‒88 U at 72 h) and 6/24 patients (25%) had <22 U after 72 h. Ex vivo administration of platelet concentrate did not improve adenosine diphosphate-induced aggregation at any timepoint after ticagrelor discontinuation. Conclusions Adenosine diphosphate-induced aggregation was acceptable after 72 h in the majority of patients but with a large interindividual variability. Due to the large variability, platelet function testing may prove to be a valuable tool in timing of surgery in patients with ongoing or recently stopped ticagrelor treatment. Adenosine diphosphate-induced aggregation was not improved by addition of platelet concentrate.
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Affiliation(s)
- Emma C Hansson
- Department of Cardiothoracic Surgery, Sahlgrenska University Hospital, Gothenburg, Sweden
- Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
| | - Carl Johan Malm
- Department of Cardiothoracic Surgery, Sahlgrenska University Hospital, Gothenburg, Sweden
- Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
| | - Camilla Hesse
- Department of Transfusion Medicine, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Björn Hornestam
- Department of Medicine, Sahlgrenska University Hospital/Östra, Gothenburg, Sweden
| | - Mikael Dellborg
- Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
- Department of Medicine, Sahlgrenska University Hospital/Östra, Gothenburg, Sweden
| | - Helena Rexius
- Department of Cardiothoracic Surgery, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Anders Jeppsson
- Department of Cardiothoracic Surgery, Sahlgrenska University Hospital, Gothenburg, Sweden
- Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
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16
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Milford EM, Reade MC. Comprehensive review of platelet storage methods for use in the treatment of active hemorrhage. Transfusion 2017; 56 Suppl 2:S140-8. [PMID: 27100750 DOI: 10.1111/trf.13504] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Revised: 12/21/2015] [Accepted: 12/23/2015] [Indexed: 12/14/2022]
Abstract
This review considers the various methods currently in use, or under investigation, for the storage of platelets intended for use in the treatment of active hemorrhage. The current standard practice of storing platelets at room temperature (RT) (20°C-24°C) optimizes circulating time, but at the expense of hemostatic function and logistical considerations. A number of alternatives are under investigation. Novel storage media additives appear to attenuate the deleterious changes that affect RT stored platelets. Cold storage was originally abandoned due to the poor circulating time of platelets stored at 4°C, but such platelets may actually be more hemostatically effective, with a number of other advantages, compared to RT stored platelets. Periodically re-warming cold stored platelets (temperature cycling, TC) may combine the hemostatic efficacy of cold stored platelets with the longer circulating times of RT storage. Alternatives to liquid storage include cryopreservation (freezing) or lyophilization (freeze-drying). The former has had some limited clinical use and larger clinical trials are underway, while the latter is still in the preclinical stage with promising in vitro and in vivo results. The importance of platelet transfusion in the management of active hemorrhage is now well accepted, so it is timely that platelet storage methods are reviewed with consideration of not only their circulating time, but also their hemostatic efficacy.
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Affiliation(s)
- Elissa M Milford
- Australian Defence Force, Australia.,University of Queensland, Australia
| | - Michael C Reade
- Australian Defence Force, Australia.,University of Queensland, Australia
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17
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van Hout FMA, Bontekoe IJ, de Laleijne LAE, Kerkhoffs JL, de Korte D, Eikenboom J, van der Bom JG, van der Meer PF. Comparison of haemostatic function of PAS-C-platelets vs. plasma-platelets in reconstituted whole blood using impedance aggregometry and thromboelastography. Vox Sang 2017; 112:549-556. [PMID: 28597485 DOI: 10.1111/vox.12534] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2017] [Revised: 03/21/2017] [Accepted: 04/22/2017] [Indexed: 01/20/2023]
Abstract
BACKGROUND AND OBJECTIVES There are concerns about the haemostatic function of platelets stored in platelet additive solution (PAS). Aim of this study was to compare the haemostatic function of PAS-C-platelets to plasma-platelets in reconstituted whole blood. MATERIALS AND METHODS In our experiment, whole blood was reconstituted with red blood cells, solvent-detergent (SD) plasma and either PAS-C-platelets or plasma-platelets (n = 7) in a physiological ratio. On storage days 2, 5, 8 and 13, the agonist-induced aggregation (multiple electrode aggregometry), clot formation (thromboelastography) and agonist-induced CD62P responsiveness (flow cytometry) were measured. RESULTS Samples with PAS-C-platelets showed significantly lower aggregation than plasma-platelets when induced with adenosine diphosphate, -6 U (95% confidence interval: -8; -4) or thrombin receptor-activating protein, -15 U (-19; -10). Also when activated with collagen and ristocetin, the PAS-C-platelets showed less aggregation, although not statistically significant. All samples with PAS-C-platelets showed significantly lower agonist-induced CD62P responsiveness than samples with plasma-platelets. However, there was no difference regarding all TEG parameters. CONCLUSION Our findings demonstrate that the function - aggregation and CD62P responsiveness - of PAS-C-platelets in reconstituted whole blood is inferior to that of plasma-platelets, which may have implications in the setting of massive transfusions.
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Affiliation(s)
- F M A van Hout
- Center for Clinical Transfusion Research, Sanquin/LUMC, Leiden, The Netherlands.,Department of Clinical Epidemiology, LUMC, Leiden, The Netherlands
| | - I J Bontekoe
- Department Product and Process Development, Sanquin, Amsterdam, The Netherlands
| | - L A E de Laleijne
- Department Product and Process Development, Sanquin, Amsterdam, The Netherlands
| | - J-L Kerkhoffs
- Center for Clinical Transfusion Research, Sanquin/LUMC, Leiden, The Netherlands
| | - D de Korte
- Department Product and Process Development, Sanquin, Amsterdam, The Netherlands
| | - J Eikenboom
- Department of Thrombosis and Hemostasis, LUMC, Leiden, The Netherlands
| | - J G van der Bom
- Center for Clinical Transfusion Research, Sanquin/LUMC, Leiden, The Netherlands.,Department of Clinical Epidemiology, LUMC, Leiden, The Netherlands
| | - P F van der Meer
- Center for Clinical Transfusion Research, Sanquin/LUMC, Leiden, The Netherlands.,Department Product and Process Development, Sanquin, Amsterdam, The Netherlands
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18
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Moore GW, Maloney JC, Archer RA, Brown KL, Mayger K, Bromidge ES, Najafi MF. Platelet-rich plasma for tissue regeneration can be stored at room temperature for at least five days. Br J Biomed Sci 2016; 74:71-77. [DOI: 10.1080/09674845.2016.1233792] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Gary W. Moore
- Department of Haemostasis and Thrombosis, Viapath Analytics, Guy’s & St. Thomas’ Hospitals, London, UK
| | - James C. Maloney
- Department of Haemostasis and Thrombosis, Viapath Analytics, Guy’s & St. Thomas’ Hospitals, London, UK
| | - Robert A. Archer
- Department of Haemostasis and Thrombosis, Viapath Analytics, Guy’s & St. Thomas’ Hospitals, London, UK
| | - Kerri L. Brown
- Department of Haemostasis and Thrombosis, Viapath Analytics, Guy’s & St. Thomas’ Hospitals, London, UK
| | - Katarzyna Mayger
- Department of Haemostasis and Thrombosis, Viapath Analytics, Guy’s & St. Thomas’ Hospitals, London, UK
| | - Elaine S. Bromidge
- Department of Haemostasis and Thrombosis, Viapath Analytics, Guy’s & St. Thomas’ Hospitals, London, UK
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19
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Glas M, Bauer JV, Eichler H, Volk T. Impedance aggregometric analysis of platelet function of apheresis platelet concentrates as a function of storage time. Scandinavian Journal of Clinical and Laboratory Investigation 2016; 76:664-670. [PMID: 27701904 DOI: 10.1080/00365513.2016.1238505] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Multiple electrode (impedance) aggregometry (MEA) allows reliable monitoring of platelet function in whole blood. The aims of the present study were to implement MEA for analyzing aggregation in platelet concentrates and to correlate results with storage time and blood gas analysis (BGA). We investigated the influence of platelet counts, calcium concentrations and agonists on platelet aggregation. Samples of apheresis concentrates up to an age of 12 days were investigated by MEA and BGA. For ASPI- and TRAPtest MEA was reproducible for a platelet count of 400 per 10-9 L and a calcium concentration of 5 mmol L-1. Platelets at the age of 2-4 days yielded steady aggregation. Platelet concentrates exceeding the storage time for transfusion showed steady aggregation up to 10 days, but a significant decline on day 12. Weak correlation was found regarding pCO2 and MEA as well as regarding glucose concentration and MEA. Our results indicate that MEA is applicable for evaluation of aggregation in stored apheresis concentrates. Prolonged storage seems not to be prejudicial regarding platelet aggregation. Platelet concentrates showed acceptable BGA throughout storage time. Further studies are required to evaluate the application of MEA for quality controls in platelet concentrates.
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Affiliation(s)
- Michael Glas
- a Department of Intensive Care Medicine , Inselspital, Bern University Hospital , Bern , Switzerland
| | - Janine Viola Bauer
- b Department of Anaesthesiology, Intensive Care and Pain Therapy , Saarland University Medical Centre, Kirrberger Strasse , Homburg , Germany
| | - Hermann Eichler
- c Institute of Clinical Hemostaseology and Transfusion Medicine, Saarland University Medical Centre, Kirrberger Strasse , Homburg , Germany
| | - Thomas Volk
- b Department of Anaesthesiology, Intensive Care and Pain Therapy , Saarland University Medical Centre, Kirrberger Strasse , Homburg , Germany
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