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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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Jóhannsson F, Yurkovich JT, Guðmundsson S, Sigurjónsson ÓE, Rolfsson Ó. Temperature Dependence of Platelet Metabolism. Metabolites 2024; 14:91. [PMID: 38392983 PMCID: PMC10890334 DOI: 10.3390/metabo14020091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 01/16/2024] [Accepted: 01/19/2024] [Indexed: 02/25/2024] Open
Abstract
Temperature plays a fundamental role in biology, influencing cellular function, chemical reaction rates, molecular structures, and interactions. While the temperature dependence of many biochemical reactions is well defined in vitro, the effect of temperature on metabolic function at the network level is poorly understood, and it remains an important challenge in optimizing the storage of cells and tissues at lower temperatures. Here, we used time-course metabolomic data and systems biology approaches to characterize the effects of storage temperature on human platelets (PLTs) in a platelet additive solution. We observed that changes to the metabolome with storage time do not simply scale with temperature but instead display complex temperature dependence, with only a small subset of metabolites following an Arrhenius-type relationship. Investigation of PLT energy metabolism through integration with computational modeling revealed that oxidative metabolism is more sensitive to temperature changes than glycolysis. The increased contribution of glycolysis to ATP turnover at lower temperatures indicates a stronger glycolytic phenotype with decreasing storage temperature. More broadly, these results demonstrate that the temperature dependence of the PLT metabolic network is not uniform, suggesting that efforts to improve the health of stored PLTs could be targeted at specific pathways.
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Affiliation(s)
- Freyr Jóhannsson
- Center for Systems Biology, University of Iceland, Sturlugata 8, 102 Reykjavik, Iceland
- School of Health Sciences, Medical Department, University of Iceland, Sturlugata 8, 102 Reykjavik, Iceland
| | - James T Yurkovich
- Department of Bioengineering, University of California San Diego, La Jolla, CA 92093, USA
- Phenome Health, Seattle, WA 98109, USA
- Center for Phenomic Health, The Buck Institute for Research on Aging, Novato, CA 94945, USA
| | - Steinn Guðmundsson
- Center for Systems Biology, University of Iceland, Sturlugata 8, 102 Reykjavik, Iceland
- Faculty of Industrial Engineering, Mechanical Engineering and Computer Science, University of Iceland, Dunhagi 3, 107 Reykjavik, Iceland
| | - Ólafur E Sigurjónsson
- The Blood Bank, Landspitali-University Hospital, Snorrabraut 60, 101 Reykjavik, Iceland
- School of Science and Engineering, Reykjavik University, Menntavegur 1, 102 Reykjavik, Iceland
| | - Óttar Rolfsson
- Center for Systems Biology, University of Iceland, Sturlugata 8, 102 Reykjavik, Iceland
- School of Health Sciences, Medical Department, University of Iceland, Sturlugata 8, 102 Reykjavik, Iceland
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3
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Liu C, Su Y, Guo W, Ma X, Qiao R. The platelet storage lesion, what are we working for? J Clin Lab Anal 2024; 38:e24994. [PMID: 38069592 PMCID: PMC10829691 DOI: 10.1002/jcla.24994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 11/04/2023] [Accepted: 11/26/2023] [Indexed: 02/01/2024] Open
Abstract
BACKGROUND Platelet concentrate (PC) transfusions are crucial in prevention and treatment of bleeding in infection, surgery, leukemia, and thrombocytopenia patients. Although the technology for platelet preparation and storage has evolved over the decades, there are still challenges in the demand for platelets in blood banks because the platelet shelf life is limited to 5 days due to bacterial contamination and platelet storage lesions (PSLs) at 20-24°C under constant horizontal agitation. In addition, the relations between some adverse effects of platelet transfusions and PSLs have also been considered. Therefore, understanding the mechanisms of PSLs is conducive to obtaining high quality platelets and facilitating safe and effective platelet transfusions. OBJECTIVE This review summarizes developments in mechanistic research of PSLs and their relationship with clinical practice, providing insights for future research. METHODS Authors conducted a search on PubMed and Web of Science using the professional terms "PSL" and "platelet transfusion." The obtained literature was then roughly categorized based on their research content. Similar studies were grouped into the same sections, and further searches were conducted based on the keywords of each section. RESULTS Different studies have explored PSLs from various perspectives, including changes in platelet morphology, surface molecules, biological response modifiers (BMRs), metabolism, and proteins and RNA, in an attempt to monitor PSLs and identify intervention targets that could alleviate PSLs. Moreover, novel platelet storage conditions, including platelet additive solutions (PAS) and reconsidered cold storage methods, are explored. There are two approaches to obtaining high-quality platelets. One approach simulates the in vivo environment to maintain platelet activity, while the other keeps platelets at a low activity level in vitro under low temperatures. CONCLUSION Understanding PSLs helps us identify good intervention targets and assess the therapeutic effects of different PSLs stages for different patients.
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Affiliation(s)
- Cheng Liu
- Peking University Third HospitalBeijingChina
| | - Yang Su
- Peking University Third HospitalBeijingChina
| | - Wanwan Guo
- Peking University Third HospitalBeijingChina
| | - Xiaolong Ma
- Peking University Third HospitalBeijingChina
| | - Rui Qiao
- Peking University Third HospitalBeijingChina
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4
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Gavioli G, Razzoli A, Bedolla DE, Di Bartolomeo E, Quartieri E, Iotti B, Berni P, Birarda G, Vaccari L, Schiroli D, Marraccini C, Baricchi R, Merolle L. Cryopreservation affects platelet macromolecular composition over time after thawing and differently impacts on cancer cells behavior in vitro. Platelets 2023; 34:2281943. [PMID: 38010129 DOI: 10.1080/09537104.2023.2281943] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Accepted: 11/06/2023] [Indexed: 11/29/2023]
Abstract
Cryopreservation affects platelets' function, questioning their use for cancer patients. We aimed to investigate the biochemical events that occur over time after thawing to optimize transfusion timing and evaluate the effect of platelet supernatants on tumor cell behavior in vitro. We compared fresh (Fresh-PLT) with Cryopreserved platelets (Cryo-PLT) at 1 h, 3 h and 6 h after thawing. MCF-7 and HL-60 cells were cultured with Fresh- or 1 h Cryo-PLT supernatants to investigate cell proliferation, migration, and PLT-cell adhesion. We noticed a significant impairment of hemostatic activity accompanied by a post-thaw decrease of CD42b+ , which identifies the CD62P--population. FTIR spectroscopy revealed a decrease in the total protein content together with changes in their conformational structure, which identified two sub-groups: 1) Fresh and 1 h Cryo-PLT; 2) 3 h and 6 h cryo-PLT. Extracellular vesicle shedding and phosphatidylserine externalization (PS) increased after thawing. Cryo-PLT supernatants inhibited cell proliferation, impaired MCF-7 cell migration, and reduced ability to adhere to tumor cells. Within the first 3 hours after thawing, irreversible alterations of biomolecular structure occur in Cryo-PLT. Nevertheless, Cryo-PLT should be considered safe for the transfusion of cancer patients because of their insufficient capability to promote cancer cell proliferation, adhesion, or migration.
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Affiliation(s)
- Gaia Gavioli
- AUSL-IRCCS di Reggio Emilia, Transfusion Medicine Unit, Reggio Emilia, Italy
- Clinical and Experimental PhD Program, University of Modena and Reggio Emilia, Modena, Italy
| | - Agnese Razzoli
- AUSL-IRCCS di Reggio Emilia, Transfusion Medicine Unit, Reggio Emilia, Italy
- Clinical and Experimental PhD Program, University of Modena and Reggio Emilia, Modena, Italy
| | - Diana E Bedolla
- Elettra - Sincrotrone Trieste S.C.p.A, Basovizza, Italy
- Molecular Pathology Lab, International Center for Genetic Engineering and Biotechnology (ICGEB), Area Science Park, Trieste, Italy
- Center for Biospectroscopy and School of Chemistry, Monash University, Clayton, VIC, Australia
| | | | - Eleonora Quartieri
- AUSL-IRCCS di Reggio Emilia, Transfusion Medicine Unit, Reggio Emilia, Italy
| | - Barbara Iotti
- AUSL-IRCCS di Reggio Emilia, Transfusion Medicine Unit, Reggio Emilia, Italy
| | - Pamela Berni
- AUSL-IRCCS di Reggio Emilia, Transfusion Medicine Unit, Reggio Emilia, Italy
| | | | - Lisa Vaccari
- Elettra - Sincrotrone Trieste S.C.p.A, Basovizza, Italy
| | - Davide Schiroli
- AUSL-IRCCS di Reggio Emilia, Transfusion Medicine Unit, Reggio Emilia, Italy
| | - Chiara Marraccini
- AUSL-IRCCS di Reggio Emilia, Transfusion Medicine Unit, Reggio Emilia, Italy
| | - Roberto Baricchi
- AUSL-IRCCS di Reggio Emilia, Transfusion Medicine Unit, Reggio Emilia, Italy
| | - Lucia Merolle
- AUSL-IRCCS di Reggio Emilia, Transfusion Medicine Unit, Reggio Emilia, Italy
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5
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George CE, Saunders CV, Morrison A, Scorer T, Jones S, Dempsey NC. Cold stored platelets in the management of bleeding: is it about bioenergetics? Platelets 2023; 34:2188969. [PMID: 36922733 DOI: 10.1080/09537104.2023.2188969] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Abstract
When platelet concentrates (PCs) were first introduced in the 1960s as a blood component therapy, they were stored in the cold. As platelet transfusion became more important for the treatment of chemotherapy-induced thrombocytopenia, research into ways to increase supply intensified. During the late 1960s/early 1970s, it was demonstrated through radioactive labeling of platelets that room temperature platelets (RTP) had superior post-transfusion recovery and survival compared with cold-stored platelets (CSP). This led to a universal switch to room temperature storage, despite CSP demonstrating superior hemostatic effectiveness upon being transfused. There has been a global resurgence in studies into CSP over the last two decades, with an increase in the use of PC to treat acute bleeding within hospital and pre-hospital care. CSP demonstrate many benefits over RTP, including longer shelf life, decreased bacterial risk and easier logistics for transport, making PC accessible in areas where they have not previously been, such as the battlefield. In addition, CSP are reported to have greater hemostatic function than RTP and are thus potentially better for the treatment of bleeding. This review describes the history of CSP, the functional and metabolic assays used to assess the platelet storage lesion in PC and the current research, benefits and limitations of CSP. We also discuss whether the application of new technology for studying mitochondrial and glycolytic function in PC could provide enhanced understanding of platelet metabolism during storage and thus contribute to the continued improvements in the manufacturing and storage of PC.
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Affiliation(s)
- Chloe E George
- Component Development & Research, Welsh Blood Service, Talbot Green, Llantrisant, UK
| | - Christine V Saunders
- Component Development & Research, Welsh Blood Service, Talbot Green, Llantrisant, UK
| | - Alex Morrison
- Scottish National Blood Transfusion Service, Jack Copland Centre, Research Avenue North, Heriot-Watt University, Edinburgh, UK
| | - Tom Scorer
- Centre of Defence Pathology, Royal Centre of Defence Medicine, Birmingham, UK and
| | - Sarah Jones
- Centre for Bioscience, Manchester Metropolitan University, Manchester, UK
| | - Nina C Dempsey
- Centre for Bioscience, Manchester Metropolitan University, Manchester, UK
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6
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Sun J, Dahiya N, Schmitt T, Stewart C, Anderson J, MacGregor S, Maclean M, Beger RD, Atreya CD. Metabolomics evaluation of the photochemical impact of violet-blue light (405 nm) on ex vivo platelet concentrates. Metabolomics 2023; 19:88. [PMID: 37855954 DOI: 10.1007/s11306-023-02050-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Accepted: 09/08/2023] [Indexed: 10/20/2023]
Abstract
INTRODUCTION Microbicidal violet-blue light in the visible spectrum (405 nm) has been under evaluation for pathogen inactivation in ex vivo human plasma and platelets (PLTs) stored in plasma. Results to date have demonstrated that several blood-borne infectious disease-causing pathogens can be successfully reduced to significantly low levels in the light-treated plasma and PLTs. METHOD In order to evaluate whether the microbicidal 405 nm light is safe for the treatment of PLT concentrates for pathogen inactivation, LC/MS-based metabolomics analyses were performed to evaluate the overall impact of 405 nm violet-blue light treatment on ex vivo PLT concentrates suspended in plasma and on plasma itself, and to identify metabolome changes in intra-platelet and extra-cellular medium (i.e., plasma). RESULTS The metabolomics data identified that platelet activating factors (PAFs), agonists and prostaglandins, which can influence PLT basic functions such as integrity, activation, and aggregation potential were unaltered, suggesting that 405 nm light illumination is safe regarding PLT basic functions. Distinct increases in hydroxyl fatty acids and aldehydes, as well as decreases in antioxidant metabolites indicated that reactive oxygen species (ROS) were generated at high levels after only one hour of exposure to 405 nm light. Distinctly changed endogenous photosensitizer metabolites after 1 h of light exposure provided good evidence that 405 nm light was an effective microbicide acting through ROS mechanism and no external additive photosensitizers were required.
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Affiliation(s)
- Jinchun Sun
- Division of Systems Biology, National Center for Toxicological Research, United States Food and Drug Administration, 3900 NCTR Road, Jefferson, AR, 72079, USA.
| | - Neetu Dahiya
- Office of Blood Research and Review, Center for Biologics Evaluation and Research, United States Food and Drug Administration, Silver Spring, MD, USA
| | - Thomas Schmitt
- Division of Systems Biology, National Center for Toxicological Research, United States Food and Drug Administration, 3900 NCTR Road, Jefferson, AR, 72079, USA
| | - Caitlin Stewart
- The Robertson Trust Laboratory for Electronic Sterilization Technologies, Department of Electronic and Electrical Engineering, University of Strathclyde, Glasgow, UK
| | - John Anderson
- The Robertson Trust Laboratory for Electronic Sterilization Technologies, Department of Electronic and Electrical Engineering, University of Strathclyde, Glasgow, UK
| | - Scott MacGregor
- The Robertson Trust Laboratory for Electronic Sterilization Technologies, Department of Electronic and Electrical Engineering, University of Strathclyde, Glasgow, UK
| | - Michelle Maclean
- The Robertson Trust Laboratory for Electronic Sterilization Technologies, Department of Electronic and Electrical Engineering, University of Strathclyde, Glasgow, UK
- Department of Biomedical Engineering, University of Strathclyde, Glasgow, UK
| | - Richard D Beger
- Division of Systems Biology, National Center for Toxicological Research, United States Food and Drug Administration, 3900 NCTR Road, Jefferson, AR, 72079, USA
| | - Chintamani D Atreya
- Office of Blood Research and Review, Center for Biologics Evaluation and Research, United States Food and Drug Administration, Silver Spring, MD, USA
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7
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LaCroix IS, Cohen M, Moore EE, Dzieciatkowska M, Silliman CC, Hansen KC, D'Alessandro A. Omics markers of platelet transfusion in trauma patients. Transfusion 2023; 63:1447-1462. [PMID: 37466356 DOI: 10.1111/trf.17472] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 04/26/2023] [Accepted: 05/30/2023] [Indexed: 07/20/2023]
Abstract
BACKGROUND Even in the era of the COVID-19 pandemic, trauma remains the global leading cause of mortality under the age of 49. Trauma-induced coagulopathy is a leading driver of early mortality in critically ill patients, and transfusion of platelet products is a life-saving intervention to restore hemostasis in the bleeding patient. However, despite extensive functional studies based on viscoelastic assays, limited information is available about the impact of platelet transfusion on the circulating molecular signatures in trauma patients receiving platelet transfusion. MATERIALS AND METHODS To bridge this gap, we leveraged metabolomics and proteomics approaches to characterize longitudinal plasma samples (n = 118; up to 11 time points; total samples: 759) from trauma patients enrolled in the Control Of Major Bleeding After Trauma (COMBAT) study. Samples were collected in the field, in the emergency department (ED), and at intervals up to 168 h (7 days) post-hospitalization. Transfusion of platelet (PLT) products was performed (n = 30; total samples: 250) in the ED through 24 h post-hospitalization. Longitudinal plasma samples were subjected to mass spectrometry-based metabolomics and proteomics workflows. Multivariate analyses were performed to determine omics markers of transfusion of one, two, three, or more PLT transfusions. RESULTS Higher levels of tranexamic acid (TXA), inflammatory proteins, carnitines, and polyamines were detected in patients requiring PLT transfusion. Correlation of PLT units with omics data suggested sicker patients required more units and partially overlap with the population requiring transfusion of packed red blood cell products. Furthermore, platelet activation was likely increased in the most severely injured patients. Fatty acid levels were significantly lower in PLT transfusion recipients (at time of maximal transfusion: Hour 4) compared with non-recipients, while carnitine levels were significantly higher. Fatty acid levels restore later in the time course (e.g., post-PLT transfusion). DISCUSSION The present study provides the first multi-omics characterization of platelet transfusion efficacy in a clinically relevant cohort of trauma patients. Physiological alterations following transfusion were detected, highlighting the efficacy of mass spectrometry-based omics techniques to improve personalized transfusion medicine. More specialized clinical research studies focused on PLT transfusion, including organized pre and post transfusion sample collection and limitation to PLT products only, are required to fully understand subsequent metabolomic and proteomic alterations.
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Affiliation(s)
- Ian S LaCroix
- Department of Biochemistry and Molecular Genetics, University of Colorado Denver - Anschutz Medical Campus, Aurora, Colorado, USA
| | - Mitchell Cohen
- Department of Surgery, University of Colorado - Anschutz Medical Campus, Aurora, Colorado, USA
| | - Ernest E Moore
- Department of Surgery, University of Colorado - Anschutz Medical Campus, Aurora, Colorado, USA
- "Ernest E Moore" Trauma Center at Denver Health, Denver, Colorado, USA
| | - Monika Dzieciatkowska
- Department of Biochemistry and Molecular Genetics, University of Colorado Denver - Anschutz Medical Campus, Aurora, Colorado, USA
| | - Christopher C Silliman
- Vitalant Research Institute, Denver, Colorado, USA
- Department of Pediatrics, University of Colorado - Anschutz Medical Campus, Aurora, Colorado, USA
| | - Kirk C Hansen
- Department of Biochemistry and Molecular Genetics, University of Colorado Denver - Anschutz Medical Campus, Aurora, Colorado, USA
| | - Angelo D'Alessandro
- Department of Biochemistry and Molecular Genetics, University of Colorado Denver - Anschutz Medical Campus, Aurora, Colorado, USA
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8
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Kusudo E, Murata Y, Matsumoto T, Kawamoto S, Egi M. Platelet function of whole blood after short-term cold storage: A prospective in vitro observational study. Transfusion 2023; 63:384-392. [PMID: 36477860 DOI: 10.1111/trf.17216] [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: 10/28/2022] [Accepted: 11/24/2022] [Indexed: 12/12/2022]
Abstract
BACKGROUND There is no standardized storage temperature of whole blood for acute normovolemic hemodilution (ANH). STUDY DESIGN AND METHODS We conducted a prospective observational study to examine the difference in platelet function between short-term whole blood storage at 4 and 22°C. Venous blood (40 ml) was collected from seven healthy subjects who gave prior written consent. The samples were divided into three groups: before storage (group Pre), cold (4°C) storage (group C), and room temperature (22°C) storage (group R). Groups C and R were tested after 6 h of blood storage. Platelet aggregability, platelet factor 4 (PF4), β-thromboglobulin (β-TG), P-selectin expression, pH, PO2 , PCO2 , glucose, lactate, blood count, and thromboelastography (TEG) parameters were measured. The percentage change in each parameter in groups C and R was calculated using the value in group Pre as a reference. These data were then compared between groups C and R using a Wilcoxon matched pairs test. p < 0.05 was considered to be statistically significant. RESULTS Compared with group R, group C showed significantly higher platelet aggregability with adenosine diphosphate (ADP) 2, 4, and 6 μM (all p = 0.016) and collagen 1 μg/ml (p = 0.047) stimulation, and significantly lower PF4 and β-TG elevation (both p = 0.031), glucose consumption (p = 0.031), and lactate production (p = 0.016). The ADP channel in TEG showed a significant increase in platelet aggregation rate in group C compared to group R. DISCUSSION Cold storage of whole blood in ANH may provide improved storage conditions for platelets and contribute to improved hemostasis compared to room temperature storage.
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Affiliation(s)
- Eriko Kusudo
- Department of Anesthesia, Kyoto University Hospital, Kyoto, Japan
| | - Yutaka Murata
- Department of Anesthesia, Kitano Hospital, Osaka, Japan
| | | | - Shuji Kawamoto
- Department of Anesthesia, Kyoto University Hospital, Kyoto, Japan
| | - Moritoki Egi
- Department of Anesthesia, Kyoto University Hospital, Kyoto, Japan
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9
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Hadley JB, Kelher MR, D’Alessandro A, Gamboni F, Hansen K, Coleman J, Jones K, Cohen M, Moore EE, Banerjee A, Silliman CC. A pilot study of the metabolic profiles of apheresis platelets modified by donor age and sex and in vitro short-term incubation with sex hormones. Transfusion 2022; 62:2596-2608. [PMID: 36309927 PMCID: PMC9837799 DOI: 10.1111/trf.17165] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 09/16/2022] [Accepted: 09/18/2022] [Indexed: 01/17/2023]
Abstract
BACKGROUND Platelets are part of innate immunity and comprise the cellular portion of hemostasis. Platelets express sex hormone receptors on their plasma membrane and sex hormones can alter their function in vitro. Little is known about how age and sex may affect platelet biology; thus, we hypothesized that platelets from males and females have different metabolomic profiles, which may be altered by age and in vitro treatment with sex hormones. METHODS Day 1 apheresis platelets were drawn from five 18-53-year-old, premenopausal younger females (YF), five ≥54-year-old, postmenopausal, older females (OF), five 18-44-year-old younger males (YM), and four ≥45-year-old older males (OM). Platelets were normalized to a standard concentration and metabolomics analyses were completed. Unsupervised statistical analyses and hierarchical clustering with principal component analyses were completed. RESULTS Platelets from OM had (1) elevated mono-, di- and tri-carboxylates, (2) increased levels of free fatty acids, acyl-carnitines, and free amino acids, and (3) increased purine breakdown and deamination products. In vitro incubation with sex hormones only affected platelets from OM donors with trends towards increased ATP and other high-energy purines and decreases in L-proline and other amino acids. CONCLUSION Platelets from OM's versus YF, OF, and YM have a different metabolome implying increased energy metabolism, more free fatty acids, acylcarnitines, and amino acids, and increased breakdown of purines and deamination products. However, only platelets from OM were affected by sex hormones in vitro. Platelets from OM are metabolically distinct, which may impart functional differences when transfused.
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Affiliation(s)
- Jamie B. Hadley
- The Department of Surgery, University of Colorado Denver, Aurora, Colorado, USA
| | - Marguerite R. Kelher
- The Department of Surgery, University of Colorado Denver, Aurora, Colorado, USA,Vitalant Research Institute, Denver, Colorado, USA
| | - Angelo D’Alessandro
- The Department of Biochemistry and Molecular Genetics, University of Colorado Denver, Aurora, Colorado, USA
| | - Fabia Gamboni
- The Department of Biochemistry and Molecular Genetics, University of Colorado Denver, Aurora, Colorado, USA
| | - Kirk Hansen
- The Department of Biochemistry and Molecular Genetics, University of Colorado Denver, Aurora, Colorado, USA
| | - Julia Coleman
- The Department of Surgery, University of Colorado Denver, Aurora, Colorado, USA
| | - Kenneth Jones
- Department of Biostatistics, University of Oklahoma School of Medicine, Oklahoma City, Oklahoma, USA
| | - Mitchell Cohen
- The Department of Surgery, University of Colorado Denver, Aurora, Colorado, USA
| | - Ernest E. Moore
- The Department of Surgery, University of Colorado Denver, Aurora, Colorado, USA
| | - Anirban Banerjee
- The Department of Surgery, University of Colorado Denver, Aurora, Colorado, USA
| | - Christopher C. Silliman
- The Department of Surgery, University of Colorado Denver, Aurora, Colorado, USA,Vitalant Research Institute, Denver, Colorado, USA,The Department of Pediatrics, School of Medicine, University of Colorado Denver, Aurora, Colorado, USA
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10
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Yousuf B, Pasha R, Pineault N, Ramirez‐Arcos S. Contamination of platelet concentrates with
Staphylococcus aureus
induces significant modulations in platelet functionality. Vox Sang 2022; 117:1318-1322. [DOI: 10.1111/vox.13353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 08/11/2022] [Accepted: 08/14/2022] [Indexed: 11/27/2022]
Affiliation(s)
- Basit Yousuf
- Medical Affairs and Innovation Canadian Blood Services Ottawa Ontario Canada
- Department of Biochemistry, Microbiology and Immunology University of Ottawa Ottawa Ontario Canada
| | - Roya Pasha
- Medical Affairs and Innovation Canadian Blood Services Ottawa Ontario Canada
| | - Nicolas Pineault
- Medical Affairs and Innovation Canadian Blood Services Ottawa Ontario Canada
- Department of Biochemistry, Microbiology and Immunology University of Ottawa Ottawa Ontario Canada
| | - Sandra Ramirez‐Arcos
- Medical Affairs and Innovation Canadian Blood Services Ottawa Ontario Canada
- Department of Biochemistry, Microbiology and Immunology University of Ottawa Ottawa Ontario Canada
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11
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Sake CL, Metcalf AJ, Meagher M, Paola JD, Neeves KB, Boyle NR. Isotopically nonstationary 13C metabolic flux analysis in resting and activated human platelets. Metab Eng 2022; 69:313-322. [PMID: 34954086 PMCID: PMC8905147 DOI: 10.1016/j.ymben.2021.12.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 12/06/2021] [Accepted: 12/20/2021] [Indexed: 01/03/2023]
Abstract
Platelet metabolism is linked to platelet hyper- and hypoactivity in numerous human diseases. Developing a detailed understanding of the link between metabolic shifts and platelet activation state is integral to improving human health. Here, we show the first application of isotopically nonstationary 13C metabolic flux analysis to quantitatively measure carbon fluxes in both resting and thrombin activated platelets. Metabolic flux analysis results show that resting platelets primarily metabolize glucose to lactate via glycolysis, while acetate is oxidized to fuel the tricarboxylic acid cycle. Upon activation with thrombin, a potent platelet agonist, platelets increase their uptake of glucose 3-fold. This results in an absolute increase in flux throughout central metabolism, but when compared to resting platelets they redistribute carbon dramatically. Activated platelets decrease relative flux to the oxidative pentose phosphate pathway and TCA cycle from glucose and increase relative flux to lactate. These results provide the first report of reaction-level carbon fluxes in platelets and allow us to distinguish metabolic fluxes with much higher resolution than previous studies.
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Affiliation(s)
- Cara L. Sake
- Department of Chemical and Biological Engineering, Colorado School of Mines, Golden, CO, 80401 USA
| | - Alexander J. Metcalf
- Department of Chemical and Biological Engineering, Colorado School of Mines, Golden, CO, 80401 USA
| | - Michelle Meagher
- Department of Pediatrics, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Jorge Di Paola
- Department of Pediatrics, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Keith B. Neeves
- Department of Bioengineering, University of Colorado, Aurora, CO, 80045 USA,Hemophilia and Thrombosis Center, University of Colorado, Aurora, CO, 80045 USA,Department of Pediatrics, Section of Hematology, Oncology, and Bone Marrow Transplant University of Colorado, Aurora, CO, 80045 USA
| | - Nanette R. Boyle
- Department of Chemical and Biological Engineering, Colorado School of Mines, Golden, CO, 80401 USA,Correspondence: , 423 Alderson Hall; 1613 Illinois St.; Golden, CO 80401
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12
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Johnson L, Vekariya S, Wood B, Tan S, Roan C, Marks DC. Refrigeration of apheresis platelets in platelet additive solution (PAS-E) supports in vitro platelet quality to maximize the shelf-life. Transfusion 2021; 61 Suppl 1:S58-S67. [PMID: 34269458 DOI: 10.1111/trf.16489] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 02/05/2021] [Accepted: 02/05/2021] [Indexed: 02/06/2023]
Abstract
BACKGROUND Refrigeration, or cold-storage, of platelets may be beneficial to extend the limited shelf-life of conventionally stored platelets and support transfusion protocols in rural and military areas. The aim of this study was to compare the morphologic, metabolic, and functional aspects of apheresis platelets stored at room-temperature (RT) or cold conditions, in either plasma or supplemented with platelet additive solution (PAS). STUDY DESIGN AND METHODS Double-dose apheresis platelets were collected in either 100% plasma or 40% plasma/60% PAS-E using the Trima apheresis platform. One component from each group was either stored at RT (20-24°C) or refrigerated (2-6°C). Platelets were tested over a 21-day period. RESULTS The platelet concentration decreased by approximately 30% in all groups during 21 days of storage (p > .05). Cold-storage reduced glycolytic metabolism, and the pH was maintained above the minimum specification (>6.4) for 21 days only when platelets were stored in PAS. The surface phenotype and the composition of the supernatant were differentially affected by temperature and storage solution. Functional responses (aggregation, agonist-induced receptor activation, clotting time) were improved during cold-storage, and the influence of residual plasma was assay dependent. CONCLUSION In vitro platelet quality is differentially affected by storage time, temperature, and solution. Cold-storage, particularly in PAS, better maintains key metabolic, phenotypic, and functional parameters during prolonged storage.
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Affiliation(s)
- Lacey Johnson
- Research and Development, Australian Red Cross Lifeblood, Alexandria, New South Wales, Australia
| | - Shuchna Vekariya
- Research and Development, Australian Red Cross Lifeblood, Alexandria, New South Wales, Australia
| | - Ben Wood
- Research and Development, Australian Red Cross Lifeblood, Alexandria, New South Wales, Australia
| | - Shereen Tan
- Research and Development, Australian Red Cross Lifeblood, Alexandria, New South Wales, Australia
| | - Christopher Roan
- Research and Development, Australian Red Cross Lifeblood, Alexandria, New South Wales, Australia
| | - Denese C Marks
- Research and Development, Australian Red Cross Lifeblood, Alexandria, New South Wales, Australia.,Sydney Medical School, The University of Sydney, Camperdown, New South Wales, Australia
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13
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Nellis ME, Spinella PC, Tucci M, Stanworth SJ, Steiner ME, Cushing MM, Davis PJ, Karam O. Effect of platelet storage duration on clinical outcomes and incremental platelet change in critically ill children. Transfusion 2020; 60:2849-2858. [PMID: 32959409 DOI: 10.1111/trf.16094] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2020] [Revised: 06/10/2020] [Accepted: 07/27/2020] [Indexed: 12/15/2022]
Abstract
The safety of platelet (PLT) concentrates with longer storage duration has been questioned due to biochemical and functional changes that occur during blood collection and storage. Some studies have suggested that transfusion efficacy is decreased and immune system dysfunction is worsened with increased storage age. We sought to describe the effect of PLT storage age on laboratory and clinical outcomes in critically ill children receiving PLT transfusions. STUDY DESIGN AND METHODS We performed a secondary analysis of a prospective, observational point-prevalence study. Children (3 days to 16 years of age) from 82 pediatric intensive care units in 16 countries were enrolled if they received a PLT transfusion during one of the predefined screening weeks. Outcomes (including PLT count increments, organ dysfunction, and transfusion reactions) were evaluated by PLT storage age. RESULTS Data from 497 patients were analyzed. The age of the PLT transfusions ranged from 1 to 7 days but the majority were 4 (24%) or 5 (36%) days of age. Nearly two-thirds of PLT concentrates were transfused to prevent bleeding. The indication for transfusion did not differ between storage age groups (P = .610). After patient and product variables were adjusted for, there was no association between storage age and incremental change in total PLT count or organ dysfunction scoring. A significant association between fresher storage age and febrile transfusion reactions (P = .002) was observed. CONCLUSION The results in a large, diverse cohort of critically ill children raise questions about the impact of storage age on transfusion and clinical outcomes which require further prospective evaluation.
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Affiliation(s)
- Marianne E Nellis
- Pediatric Critical Care Medicine, NY Presbyterian Hospital-Weill Cornell Medicine, New York, New York
| | - Philip C Spinella
- Department of Pediatrics, Division of Critical Care, Washington University in St Louis, St Louis, Missouri
| | - Marisa Tucci
- Pediatric Intensive Care Unit, CHU Sainte-Justine, University of Montreal, Montreal, Quebec, Canada
| | - Simon J Stanworth
- Transfusion Medicine, NHS Blood and Transplant, Oxford, UK.,Department of Haematology, Oxford University Hospitals NHS Foundation Trust, Oxford, UK.,Radcliffe Department of Medicine, University of Oxford and Oxford BRC Haematology Theme, Oxford, UK
| | - Marie E Steiner
- Divisions of Pediatric Critical Care and Pediatric Hematology/Oncology, University of Minnesota, Minneapolis, Minnesota
| | | | - Peter J Davis
- Paediatric Intensive Care Unit, Bristol Royal Hospital for Children, Bristol, UK
| | - Oliver Karam
- Division of Pediatric Critical Care Medicine, Children's Hospital of Richmond at VCU, Richmond, Virginia
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14
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Abstract
AbstractThe characterization of platelet concentrates (PCs) in transfusion medicine has been performed with different analytical methods and platelet lesions (from biochemistry to cell biology) have been documented. In routine quality assessment and validation of manufacturing processes of PCs for transfusion purposes, only basic parameters are monitored and the platelet functions are not included. However, PCs undergo several manipulations during the processing and the basic parameters do not provide sensitive analyses to properly picture out the impact of the blood component preparation and storage on platelets. To improve the transfusion supply chain and the platelet functionalities, additional parameters should be used. The present short review will focus on the different techniques to monitor ex vivo platelet lesions from phenotype characterization to advanced omic analyses. Then, the opportunities to use these methods in quality control, process validation, development, and research will be discussed. Functional markers should be considered because they would be an advantage for the future developments in transfusion medicine.
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15
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D’Alessandro A, Thomas KA, Stefanoni D, Gamboni F, Shea SM, Reisz JA, Spinella PC. Metabolic phenotypes of standard and cold-stored platelets. Transfusion 2020; 60 Suppl 3:S96-S106. [PMID: 31880330 PMCID: PMC7971209 DOI: 10.1111/trf.15651] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Revised: 12/10/2019] [Accepted: 12/10/2019] [Indexed: 12/18/2022]
Abstract
BACKGROUND Conventional platelet (PLT) storage at room temperature under continuous agitation results in a limited shelf life (5 days) and an increased risk of bacterial contamination. However, both of these aspects can be ameliorated by cold storage. Preliminary work has suggested that PLTs can be cold stored for up to 3 weeks, while preserving their metabolic activity longer than in PLTs stored at room temperature. As such, in the present study, we hypothesized that the metabolic phenotypes of PLTs stored at 4°C for 3 weeks could be comparable to that of room temperature-stored PLTs at 22°C for 5 days. STUDY DESIGN AND METHODS Metabolomics analyses were performed on nine apheresis PLT concentrates stored either at room temperature (22°C) for 5 days or refrigerated conditions (4°C) for up to 3 weeks. RESULTS Refrigeration did not impact the rate of decline in glutamine or the intracellular levels of Krebs cycle metabolites upstream to fumarate and malate. It did, however, decrease oxidant stress (to glutathione and purines) and slowed down the activation of the pentose phosphate pathway, glycolysis, and fatty acid metabolism (acyl-carnitines). CONCLUSION The overall metabolic phenotypes of 4°C PLTs at Storage Day 10 are comparable to PLTs stored at 22°C at the end of their 5-day shelf life, while additional changes in glycolysis, purine, and fatty acid metabolism are noted by Day 21.
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Affiliation(s)
- Angelo D’Alessandro
- Department of Biochemistry and Molecular Genetics, University of Colorado Denver – Anschutz Medical Campus, Aurora, Colorado
| | - Kimberly A. Thomas
- Department of Pediatrics, Division of Critical Care, Washington University School of Medicine, St. Louis, Missouri
| | - Davide Stefanoni
- Department of Biochemistry and Molecular Genetics, University of Colorado Denver – Anschutz Medical Campus, Aurora, Colorado
| | - Fabia Gamboni
- Department of Biochemistry and Molecular Genetics, University of Colorado Denver – Anschutz Medical Campus, Aurora, Colorado
| | - Susan M. Shea
- Department of Pediatrics, Division of Critical Care, Washington University School of Medicine, St. Louis, Missouri
| | - Julie A. Reisz
- Department of Biochemistry and Molecular Genetics, University of Colorado Denver – Anschutz Medical Campus, Aurora, Colorado
| | - Philip C. Spinella
- Department of Pediatrics, Division of Critical Care, Washington University School of Medicine, St. Louis, Missouri
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16
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Buchweitz LF, Yurkovich JT, Blessing C, Kohler V, Schwarzkopf F, King ZA, Yang L, Jóhannsson F, Sigurjónsson ÓE, Rolfsson Ó, Heinrich J, Dräger A. Visualizing metabolic network dynamics through time-series metabolomic data. BMC Bioinformatics 2020; 21:130. [PMID: 32245365 PMCID: PMC7119163 DOI: 10.1186/s12859-020-3415-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Accepted: 02/12/2020] [Indexed: 11/23/2022] Open
Abstract
Background New technologies have given rise to an abundance of -omics data, particularly metabolomic data. The scale of these data introduces new challenges for the interpretation and extraction of knowledge, requiring the development of innovative computational visualization methodologies. Here, we present GEM-Vis, an original method for the visualization of time-course metabolomic data within the context of metabolic network maps. We demonstrate the utility of the GEM-Vis method by examining previously published data for two cellular systems—the human platelet and erythrocyte under cold storage for use in transfusion medicine. Results The results comprise two animated videos that allow for new insights into the metabolic state of both cell types. In the case study of the platelet metabolome during storage, the new visualization technique elucidates a nicotinamide accumulation that mirrors that of hypoxanthine and might, therefore, reflect similar pathway usage. This visual analysis provides a possible explanation for why the salvage reactions in purine metabolism exhibit lower activity during the first few days of the storage period. The second case study displays drastic changes in specific erythrocyte metabolite pools at different times during storage at different temperatures. Conclusions The new visualization technique GEM-Vis introduced in this article constitutes a well-suitable approach for large-scale network exploration and advances hypothesis generation. This method can be applied to any system with data and a metabolic map to promote visualization and understand physiology at the network level. More broadly, we hope that our approach will provide the blueprints for new visualizations of other longitudinal -omics data types. The supplement includes a comprehensive user’s guide and links to a series of tutorial videos that explain how to prepare model and data files, and how to use the software SBMLsimulator in combination with further tools to create similar animations as highlighted in the case studies.
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Affiliation(s)
- Lea F Buchweitz
- Computational Systems Biology of Infection and Antimicrobial-Resistant Pathogens, Institute for Biomedical Informatics (IBMI), Sand 14, Tübingen, 72076, Germany
| | - James T Yurkovich
- Institute for Systems Biology, 401 Terry Ave. N., Seattle, 98109, WA, United States
| | - Christoph Blessing
- Computational Systems Biology of Infection and Antimicrobial-Resistant Pathogens, Institute for Biomedical Informatics (IBMI), Sand 14, Tübingen, 72076, Germany.,Department of Computer Science, University of Tübingen, Sand 14, Tübingen, 72076, Germany
| | - Veronika Kohler
- Computational Systems Biology of Infection and Antimicrobial-Resistant Pathogens, Institute for Biomedical Informatics (IBMI), Sand 14, Tübingen, 72076, Germany.,Department of Computer Science, University of Tübingen, Sand 14, Tübingen, 72076, Germany
| | | | - Zachary A King
- Systems Biology Research Group, Department of Bioengineering, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0412, United States.,Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Building 220, Kemitorvet, Kgs.Lyngby, 2800, Denmark
| | - Laurence Yang
- Department of Chemical Engineering, Queen's University, Kingston, ON K7L 3N6, Canada
| | - Freyr Jóhannsson
- Center for Systems Biology, University of Iceland, Sturlugata 8, Reykjavík, 101, Iceland
| | - Ólafur E Sigurjónsson
- The Blood Bank, Landspítali-University Hospital, Reykjavík, 101, Iceland.,School of Science and Engineering, Reykjavík University, Menntavegi 1, Reykjavík, 101, Iceland
| | - Óttar Rolfsson
- Center for Systems Biology, University of Iceland, Sturlugata 8, Reykjavík, 101, Iceland
| | - Julian Heinrich
- Department of Computer Science, University of Tübingen, Sand 14, Tübingen, 72076, Germany
| | - Andreas Dräger
- Computational Systems Biology of Infection and Antimicrobial-Resistant Pathogens, Institute for Biomedical Informatics (IBMI), Sand 14, Tübingen, 72076, Germany. .,Department of Computer Science, University of Tübingen, Sand 14, Tübingen, 72076, Germany. .,German Center for Infection Research (DZIF), partner site Tübingen, Tübingen, 72076, Germany.
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17
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Jóhannsson F, Árnason NÁ, Landrö R, Guðmundsson S, Sigurjonsson ÓE, Rolfsson Ó. Metabolomics study of platelet concentrates photochemically treated with amotosalen and UVA light for pathogen inactivation. Transfusion 2019; 60:367-377. [PMID: 31802514 DOI: 10.1111/trf.15610] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 10/18/2019] [Accepted: 10/19/2019] [Indexed: 12/17/2022]
Abstract
BACKGROUND The risk of bacterial contamination and the deterioration of platelet (PLT) quality limit the shelf-life of platelet concentrates (PCs). The INTERCEPT pathogen inactivation system reduces the risk of pathogen transmission by inhibiting nucleic acid replication using a combination of a photo-reactive compound and UVA illumination. The goal of this study was to investigate the effects the INTERCEPT system has on the PLT metabolome and metabolic activity. STUDY DESIGN AND METHODS Paired units of buffy coat-derived PCs were generated using a pool and split strategy (n = 8). The paired PCs were either treated with the INTERCEPT system or left untreated. Samples were collected on Days 1, 2, 4, and 7 of storage. Ultra-performance chromatography coupled with time-of-flight mass spectrometry was used to analyze the extra- and intracellular metabolomes. Constraint-based metabolic modeling was then used to predict the metabolic activity of the stored PLTs. RESULTS A relatively large number of metabolites in the extracellular environment were depleted during the processing steps of the INTERCEPT system, in particular, metabolites with hydrophobic functional groups, including acylcarnitines and lysophosphatidylcholines. In the intracellular environment, alterations in glucose and glycerophospholipid metabolism and decreased levels of 2-hydroxyglutarate were observed following the INTERCEPT treatment. Untargeted metabolomics analysis revealed residual amotosalen dimers present in the treated PCs. Systems-level analysis of PLT metabolism indicated that the INTERCEPT system does not have a significant impact on the PLT energy metabolism and nutrient utilization. CONCLUSIONS The INTERCEPT system significantly alters the metabolome of the stored PCs without significantly influencing PLT energy metabolism.
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Affiliation(s)
- Freyr Jóhannsson
- Center for Systems Biology, University of Iceland, Sturlugata 8, Reykjavik, Iceland.,Medical Department, University of Iceland, Sturlugata 8, Reykjavik, Iceland
| | - Níels Á Árnason
- The Blood Bank, Landspitali-University Hospital, Snorrabraut 60, Reykjavik, Iceland
| | - Ragna Landrö
- The Blood Bank, Landspitali-University Hospital, Snorrabraut 60, Reykjavik, Iceland
| | - Sveinn Guðmundsson
- The Blood Bank, Landspitali-University Hospital, Snorrabraut 60, Reykjavik, Iceland
| | - Ólafur E Sigurjonsson
- The Blood Bank, Landspitali-University Hospital, Snorrabraut 60, Reykjavik, Iceland.,School of Science and Engineering, Reykjavik University, Menntavegur 1, Reykjavik, Iceland
| | - Óttar Rolfsson
- Center for Systems Biology, University of Iceland, Sturlugata 8, Reykjavik, Iceland.,Medical Department, University of Iceland, Sturlugata 8, Reykjavik, Iceland
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18
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Delabie W, Maes W, Devloo R, Van den Hauwe MR, Vanhoorelbeke K, Compernolle V, Feys HB. The senotherapeutic nicotinamide riboside raises platelet nicotinamide adenine dinucleotide levels but cannot prevent storage lesion. Transfusion 2019; 60:165-174. [PMID: 31652008 PMCID: PMC6973138 DOI: 10.1111/trf.15556] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Revised: 08/28/2019] [Accepted: 09/19/2019] [Indexed: 12/18/2022]
Abstract
BACKGROUND Supplementation of the nicotinamide adenine dinucleotide (NAD) precursor nicotinamide riboside (NR) has recently been shown to increase life‐span of cells, tissues, and entire organisms. [Correction added on 13 December 2019, after first online publication: In the preceding sentence, “adenine nicotinamide” was revised to “nicotinamide adenine.”] The impact of NR on platelet longevity has not been tested. STUDY DESIGN AND METHODS A pool‐and‐split design of buffy coat derived platelet concentrates (PCs) was used. One arm was treated with cumulative doses of NR‐triflate, the control arm with sodium triflate. Storage lesion was monitored for 23 days. Platelet metabolic and functional parameters were tested. Clearance of human platelets was measured in a mouse model of transfusion. RESULTS Total intracellular NAD levels in platelets decreased two‐fold from 4.8 ± 0.5 fmol (mean ± SD, n = 6) to 2.1 ± 1.8 fmol per 103 control cells, but increased almost 10‐fold to 41.5 ± 4.1 fmol per 103 NR treated platelets. This high intracellular NAD level had no significant impact on platelet count, mean platelet volume, swirling, nor on lactate and glucose levels. Platelet aggregation and integrin αIIbβ3 activation declined steadily and comparably in both conditions. GPIbα levels were slightly lower in NR‐treated platelets compared to control, but this was not caused by reduced receptor shedding because glycocalicin increased similarly. Apoptotic markers cytochrome c, Bcl‐xL, cleaved caspase‐3, and Bak were not different throughout storage for both conditions. Platelet survival in a mouse model of transfusion was not different between NR‐treated and control platelets. CONCLUSION Platelets carry the cellular machinery to metabolize NR into NAD at rates comparable to other eukaryotic cells. Unlike those cells, platelet life‐span cannot be prolonged using this strategy.
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Affiliation(s)
- Willem Delabie
- Transfusion Research Center, Belgian Red Cross-Flanders, Ghent, Belgium
| | - Wim Maes
- Laboratory For Thrombosis Research, KU Leuven Campus Kulak Kortrijk, Kortrijk, Belgium
| | - Rosalie Devloo
- Transfusion Research Center, Belgian Red Cross-Flanders, Ghent, Belgium
| | | | - Karen Vanhoorelbeke
- Laboratory For Thrombosis Research, KU Leuven Campus Kulak Kortrijk, Kortrijk, Belgium
| | - Veerle Compernolle
- Transfusion Research Center, Belgian Red Cross-Flanders, Ghent, Belgium.,Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium.,Blood Services, Belgian Red Cross-Flanders, Mechelen, Belgium
| | - Hendrik B Feys
- Transfusion Research Center, Belgian Red Cross-Flanders, Ghent, Belgium.,Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium.,Blood Services, Belgian Red Cross-Flanders, Mechelen, Belgium
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19
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Chiang JY, Lee SH, Chen YC, Wu CK, Chuang JY, Lo SC, Yeh HM, Yeh SFS, Hsu CA, Lin BB, Chang PC, Chang CH, Liang HJ, Chiang FT, Lin CY, Juang JMJ. Metabolomic Analysis of Platelets of Patients With Aspirin Non-Response. Front Pharmacol 2019; 10:1107. [PMID: 31680941 PMCID: PMC6797853 DOI: 10.3389/fphar.2019.01107] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Accepted: 08/28/2019] [Indexed: 12/20/2022] Open
Abstract
Background: Aspirin is the most commonly used antiplatelet agent for the prevention of cardiovascular diseases. However, a certain proportion of patients do not respond to aspirin therapy. The mechanisms of aspirin non-response remain unknown. The unique metabolomes in platelets of patients with coronary artery disease (CAD) with aspirin non-response may be one of the causes of aspirin resistance. Materials and Methods: We enrolled 29 patients with CAD who were aspirin non-responders, defined as a study subject who were taking aspirin with a platelet aggregation time less than 193 s by PFA-100, and 31 age- and sex-matched patients with CAD who were responders. All subjects had been taking 100 mg of aspirin per day for more than 1 month. Hydrophilic metabolites from the platelet samples were extracted and analyzed by nuclear magnetic resonance (NMR). Both 1D 1H and 2D J-resolved NMR spectra were obtained followed by spectral processing and multivariate statistical analysis, such as partial least squares discriminant analysis (PLS-DA). Results: Eleven metabolites were identified. The PLS-DA model could not distinguish aspirin non-responders from responders. Those with low serum glycine level had significantly shorter platelet aggregation time (mean, 175.0 s) compared with those with high serum glycine level (259.5 s). However, this association became non-significant after correction for multiple tests. Conclusions: The hydrophilic metabolic profile of platelets was not different between aspirin non-responders and responders. An association between lower glycine levels and higher platelet activity in patients younger than 65 years suggests an important role of glycine in the pathophysiology of aspirin non-response.
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Affiliation(s)
- Jiun-Yang Chiang
- Cardiovascular Center and Division of Cardiology, Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan.,Graduate Institute of Clinical Medicine, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Sheng-Han Lee
- Institute of Environmental Health, College of Public Health, National Taiwan University, Taipei, Taiwan
| | - Yen-Ching Chen
- College of Public Health, Institute of Epidemiology and Preventive Medicine, National Taiwan University, Taipei, Taiwan
| | - Cho-Kai Wu
- Cardiovascular Center and Division of Cardiology, Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Jing-Yuan Chuang
- Department of Medical Laboratory Science and Biotechnology, China Medical University, Taichung, Taiwan
| | - Shyh-Chyi Lo
- Department of Laboratory Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Huei-Ming Yeh
- Department of Anesthesiology, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Shih-Fan Sherri Yeh
- Department of Environmental and Occupational Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Cheng-An Hsu
- Division of Haematology, Department of Laboratory Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Bin-Bin Lin
- Division of Haematology, Department of Laboratory Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Pi-Chu Chang
- Division of Haematology, Department of Laboratory Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Chih-Hsin Chang
- Division of Haematology, Department of Laboratory Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Hao-Jan Liang
- Institute of Environmental Health, College of Public Health, National Taiwan University, Taipei, Taiwan
| | - Fu-Tien Chiang
- Cardiovascular Center and Division of Cardiology, Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan.,Cardiovascular Center, Fu-Jen Catholic University Hospital, New Taipei, Taiwan
| | - Ching-Yu Lin
- Institute of Environmental Health, College of Public Health, National Taiwan University, Taipei, Taiwan
| | - Jyh-Ming Jimmy Juang
- Cardiovascular Center and Division of Cardiology, Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
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20
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Volani C, Paglia G, Smarason SV, Pramstaller PP, Demetz E, Pfeifhofer-Obermair C, Weiss G. Metabolic Signature of Dietary Iron Overload in a Mouse Model. Cells 2018; 7:cells7120264. [PMID: 30544931 PMCID: PMC6315421 DOI: 10.3390/cells7120264] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Revised: 12/03/2018] [Accepted: 12/07/2018] [Indexed: 12/28/2022] Open
Abstract
Iron is an essential co-factor for several metabolic processes, including the Krebs cycle and mitochondrial oxidative phosphorylation. Therefore, maintaining an appropriate iron balance is essential to ensure sufficient energy production and to avoid excessive reactive oxygen species formation. Iron overload impairs mitochondrial fitness; however, little is known about the associated metabolic changes. Here we aimed to characterize the metabolic signature triggered by dietary iron overload over time in a mouse model, where mice received either a standard or a high-iron diet. Metabolic profiling was assessed in blood, plasma and liver tissue. Peripheral blood was collected by means of volumetric absorptive microsampling (VAMS). Extracted blood and tissue metabolites were analyzed by liquid chromatography combined to high resolution mass spectrometry. Upon dietary iron loading we found increased glucose, aspartic acid and 2-/3-hydroxybutyric acid levels but low lactate and malate levels in peripheral blood and plasma, pointing to a re-programming of glucose homeostasis and the Krebs cycle. Further, iron loading resulted in the stimulation of the urea cycle in the liver. In addition, oxidative stress was enhanced in circulation and coincided with increased liver glutathione and systemic cysteine synthesis. Overall, iron supplementation affected several central metabolic circuits over time. Hence, in vivo investigation of metabolic signatures represents a novel and useful tool for getting deeper insights into iron-dependent regulatory circuits and for monitoring of patients with primary and secondary iron overload, and those ones receiving iron supplementation therapy.
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Affiliation(s)
- Chiara Volani
- Department of Internal Medicine II, Medical University of Innsbruck, Anichstrasse 35, 6020 Innsbruck, Austria.
- Christian Doppler Laboratory for Iron Metabolism and Anemia Research, Medical University of Innsbruck, Anichstrasse 35, 6020 Innsbruck, Austria.
- Institute for Biomedicine, Eurac Research, Via Galvani 31, 39100 Bolzano, Italy.
| | - Giuseppe Paglia
- Institute for Biomedicine, Eurac Research, Via Galvani 31, 39100 Bolzano, Italy.
| | - Sigurdur V Smarason
- Institute for Biomedicine, Eurac Research, Via Galvani 31, 39100 Bolzano, Italy.
| | - Peter P Pramstaller
- Institute for Biomedicine, Eurac Research, Via Galvani 31, 39100 Bolzano, Italy.
| | - Egon Demetz
- Department of Internal Medicine II, Medical University of Innsbruck, Anichstrasse 35, 6020 Innsbruck, Austria.
| | - Christa Pfeifhofer-Obermair
- Department of Internal Medicine II, Medical University of Innsbruck, Anichstrasse 35, 6020 Innsbruck, Austria.
| | - Guenter Weiss
- Department of Internal Medicine II, Medical University of Innsbruck, Anichstrasse 35, 6020 Innsbruck, Austria.
- Christian Doppler Laboratory for Iron Metabolism and Anemia Research, Medical University of Innsbruck, Anichstrasse 35, 6020 Innsbruck, Austria.
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21
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Bontekoe IJ, Meer PF, Verhoeven AJ, Korte D. Platelet storage properties are associated with donor age:in vitroquality of platelets from young donors and older donors with and without Type 2 diabetes. Vox Sang 2018; 114:129-136. [DOI: 10.1111/vox.12739] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Revised: 10/08/2018] [Accepted: 11/13/2018] [Indexed: 12/13/2022]
Affiliation(s)
- Ido J. Bontekoe
- Department of Product and Process Development Sanquin Blood Bank Amsterdam the Netherlands
| | - Pieter F. Meer
- Department of Product and Process Development Sanquin Blood Bank Amsterdam the Netherlands
- Center for Clinical Transfusion Research Sanquin Leiden the Netherlands
| | | | - Dirk Korte
- Department of Product and Process Development Sanquin Blood Bank Amsterdam the Netherlands
- Department of Blood Cell Research Sanquin Research Amsterdam the Netherlands
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22
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Abonnenc M, Tissot JD, Prudent M. General overview of blood products in vitro quality: Processing and storage lesions. Transfus Clin Biol 2018; 25:269-275. [PMID: 30241785 DOI: 10.1016/j.tracli.2018.08.162] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Accepted: 08/29/2018] [Indexed: 12/12/2022]
Abstract
Blood products are issued from blood collection. Collected blood is immediately mixed with anticoagulant solutions that immediately induce chemical and/or biochemical modifications. Collected blood is then transformed into different blood products according to various steps of fabrication. All these steps induce either reversible or irreversible "preparation-related" lesions that combine with "storage-related" lesions. This short paper aims to provide an overview of the alterations that are induced by the "non-physiological" processes used to prepare blood products that are used in clinical practice.
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Affiliation(s)
- Mélanie Abonnenc
- Transfusion interrégionale CRS, laboratoire de recherche sur les produits sanguins, route de la Corniche 2, 1066 Epalinges, Switzerland
| | - Jean-Daniel Tissot
- Transfusion interrégionale CRS, laboratoire de recherche sur les produits sanguins, route de la Corniche 2, 1066 Epalinges, Switzerland; Faculté de biologie et de médecine, université de Lausanne, Lausanne, Switzerland
| | - Michel Prudent
- Transfusion interrégionale CRS, laboratoire de recherche sur les produits sanguins, route de la Corniche 2, 1066 Epalinges, Switzerland; Faculté de biologie et de médecine, université de Lausanne, Lausanne, Switzerland.
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23
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Influence of collection tubes during quantitative targeted metabolomics studies in human blood samples. Clin Chim Acta 2018; 486:320-328. [DOI: 10.1016/j.cca.2018.08.014] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Revised: 07/09/2018] [Accepted: 08/11/2018] [Indexed: 01/05/2023]
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24
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Meinke S, Wikman A, Gryfelt G, Hultenby K, Uhlin M, Höglund P, Sandgren P. Cryopreservation of buffy coat-derived platelet concentrates photochemically treated with amotosalen and UVA light. Transfusion 2018; 58:2657-2668. [PMID: 30281156 DOI: 10.1111/trf.14905] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 07/06/2018] [Accepted: 07/23/2018] [Indexed: 12/14/2022]
Abstract
BACKGROUND Cryopreserved platelets (CPPs) are considered a promising approach for extended platelet storage, bridging inventory shortages of conventionally stored platelets. It is unknown if platelet concentrates exposed to photochemical treatment (PCT) with amotosalen and ultraviolet A (UVA) light, to inactivate pathogens, are suitable for freezing. The objective of this study was to analyze potential effects of PCT on CPPs as compared with untreated CPPs. STUDY DESIGN AND METHODS A total of 12 PCT-treated and 12 untreated platelet units from buffy coats were cryopreserved at -80°C in 5% dimethyl sulfoxide. CPPs of both types were rapidly thawed at 37°C and resuspended in 200 mL fresh plasma. In vitro properties were analyzed prefreezing, postfreezing and thawing, and on Day 1 after thawing. RESULTS Directly after thawing, no major differences in platelet content, lactase hydrogenase, adenosine triphosphate, mitochondrial membrane potential, CD62P, CD42b, and platelet endothelial cell adhesion molecule were seen between PCT-CPPs and conventional CPPs. Agonist-induced PAC-1 expression and contribution of CPPs to blood coagulation in an experimental rotational thromboelastometry setup were also similar between the groups. On Day 1 after thawing, the CPPs of both types performed less well. The PCT-CPPs tended to be more affected by the freezing process than the conventional CPPs. CONCLUSIONS PCT-CPPs appeared slightly more susceptible to lesion effects by freezing than conventional CPPs, in particular in assays on Day 1 after thawing, but these differences were small relative to the dramatic effects of the freezing process itself.
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Affiliation(s)
- Stephan Meinke
- Department of Medicine Huddinge, Center for Hematology and Regenerative Medicine (HERM), Karolinska Institutet
| | - Agneta Wikman
- Department of Clinical Immunology and Transfusion Medicine (KITM), Karolinska University Hospital.,Department of Laboratory Medicine, Karolinska Institutet
| | - Gunilla Gryfelt
- Department of Clinical Immunology and Transfusion Medicine (KITM), Karolinska University Hospital
| | - Kjell Hultenby
- Division of Clinical Research Center, Department of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Michael Uhlin
- Department of Clinical Science, Intervention and Technology (CLINTEC), Karolinska Institutet, Stockholm, Sweden
| | - Petter Höglund
- Department of Medicine Huddinge, Center for Hematology and Regenerative Medicine (HERM), Karolinska Institutet
| | - Per Sandgren
- Department of Clinical Immunology and Transfusion Medicine (KITM), Karolinska University Hospital.,Department of Laboratory Medicine, Karolinska Institutet
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25
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Bertaggia Calderara D, Crettaz D, Aliotta A, Barelli S, Tissot JD, Prudent M, Alberio L. Generation of procoagulant collagen- and thrombin-activated platelets in platelet concentrates derived from buffy coat: the role of processing, pathogen inactivation, and storage. Transfusion 2018; 58:2395-2406. [PMID: 30229925 DOI: 10.1111/trf.14883] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Revised: 07/09/2018] [Accepted: 07/09/2018] [Indexed: 12/19/2022]
Abstract
BACKGROUND Collagen- and thrombin-activated (COAT) platelets (PLTs), generated by dual-agonist stimulation with collagen and thrombin (THR), enhance THR generation at the site of vessel wall injury. There is evidence that higher amounts of procoagulant COAT PLTs are associated with stroke, while a decreased ability to generate them is associated with bleeding diathesis. Our aim was to study PLT functions, particularly the ability to generate COAT PLTs, in PLT concentrates (PCs) from buffy coat. Thus, we investigated the effect of processing, pathogen inactivation treatment (amotosalen-UVA), and PC storage. STUDY DESIGN AND METHODS Two PCs from five donors each were pooled and split in two bags; one of them was pathogen inactivated and the other one was left untreated (n = 5). Flow cytometric analyses were performed immediately after PC preparation (Day 1) and thereafter on Days 2, 5, 7, and 9 in treated and untreated PCs to measure the reactivity of PLTs (CD62P and PAC-1), the content and secretion of dense granule after stimulation with different agonists, and the percentage of COAT PLTs after dual stimulation with convulxin (agonist of the collagen receptor GPVI) and THR. RESULTS Preparation of PCs resulted in a significant decrease of COAT PLTs and in an impaired response to adenosine 5'-diphosphate sodium (ADP). Storage further decreased ADP response. Minor differences were observed between untreated or amotosalen-UVA-treated PCs. CONCLUSION Preparation of PCs from buffy coats decreased the ability to generate COAT PLTs and impaired PLT response to ADP.
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Affiliation(s)
- Debora Bertaggia Calderara
- Division of Hematology and Central Hematology Laboratory, CHUV, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - David Crettaz
- Laboratoire de Recherche sur les Produits Sanguins, Transfusion Interrégionale CRS, Epalinges, Switzerland
| | - Alessandro Aliotta
- Division of Hematology and Central Hematology Laboratory, CHUV, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland.,Faculté de Biologie et de Médecine, Université de Lausanne, Lausanne, Switzerland
| | - Stefano Barelli
- Division of Hematology and Central Hematology Laboratory, CHUV, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Jean-Daniel Tissot
- Laboratoire de Recherche sur les Produits Sanguins, Transfusion Interrégionale CRS, Epalinges, Switzerland.,Faculté de Biologie et de Médecine, Université de Lausanne, Lausanne, Switzerland
| | - Michel Prudent
- Laboratoire de Recherche sur les Produits Sanguins, Transfusion Interrégionale CRS, Epalinges, Switzerland.,Faculté de Biologie et de Médecine, Université de Lausanne, Lausanne, Switzerland
| | - Lorenzo Alberio
- Division of Hematology and Central Hematology Laboratory, CHUV, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland.,Faculté de Biologie et de Médecine, Université de Lausanne, Lausanne, Switzerland
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26
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Systems analysis of metabolism in platelet concentrates during storage in platelet additive solution. Biochem J 2018; 475:2225-2240. [DOI: 10.1042/bcj20170921] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Revised: 05/25/2018] [Accepted: 06/18/2018] [Indexed: 02/06/2023]
Abstract
Platelets (PLTs) deteriorate over time when stored within blood banks through a biological process known as PLT storage lesion (PSL). Here, we describe the refinement of the biochemical model of PLT metabolism, iAT-PLT-636, and its application to describe and investigate changes in metabolism during PLT storage. Changes in extracellular acetate and citrate were measured in buffy coat and apheresis PLT units over 10 days of storage in the PLT additive solution T-Sol. Metabolic network analysis of these data was performed alongside our prior metabolomics data to describe the metabolism of fresh (days 1–3), intermediate (days 4–6), and expired (days 7–10) PLTs. Changes in metabolism were studied by comparing metabolic model flux predictions of iAT-PLT-636 between stages and between collection methods. Extracellular acetate and glucose contribute most to central carbon metabolism in PLTs. The anticoagulant citrate is metabolized in apheresis-stored PLTs and is converted into aconitate and, to a lesser degree, malate. The consumption of nutrients changes during storage and reflects altered PLT activation profiles following their collection. Irrespective of the collection method, a slowdown in oxidative phosphorylation takes place, consistent with mitochondrial dysfunction during PSL. Finally, the main contributors to intracellular ammonium and NADPH are highlighted. Future optimization of flux through these pathways provides opportunities to address intracellular pH changes and reactive oxygen species, which are both of importance to PSL. The metabolic models provide descriptions of PLT metabolism at steady state and represent a platform for future PLT metabolic research.
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27
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Yurkovich JT, Palsson BO. Quantitative -omic data empowers bottom-up systems biology. Curr Opin Biotechnol 2018; 51:130-136. [DOI: 10.1016/j.copbio.2018.01.009] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Revised: 01/09/2018] [Accepted: 01/09/2018] [Indexed: 12/24/2022]
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28
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Ng MSY, Tung JP, Fraser JF. Platelet Storage Lesions: What More Do We Know Now? Transfus Med Rev 2018; 32:S0887-7963(17)30189-X. [PMID: 29751949 DOI: 10.1016/j.tmrv.2018.04.001] [Citation(s) in RCA: 87] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Revised: 04/09/2018] [Accepted: 04/09/2018] [Indexed: 12/20/2022]
Abstract
Platelet concentrate (PC) transfusions are a lifesaving adjunct to control and prevent bleeding in cancer, hematologic, surgical, and trauma patients. Platelet concentrate availability and safety are limited by the development of platelet storage lesions (PSLs) and risk of bacterial contamination. Platelet storage lesions are a series of biochemical, structural, and functional changes that occur from blood collection to transfusion. Understanding of PSLs is key for devising interventions that prolong PC shelf life to improve PC access and wastage. This article will review advancements in clinical and mechanistic PSL research. In brief, exposure to artificial surfaces and high centrifugation forces during PC preparation initiate PSLs by causing platelet activation, fragmentation, and biochemical release. During room temperature storage, enhanced glycolysis and reduced mitochondrial function lead to glucose depletion, lactate accumulation, and product acidification. Impaired adenosine triphosphate generation reduces platelet capacity to perform energetically demanding processes such as hypotonic stress responses and activation/aggregation. Storage-induced alterations in platelet surface proteins such as thrombin receptors and glycoproteins decrease platelet aggregation. During storage, there is an accumulation of immunoactive proteins such as leukocyte-derive cytokines (tumor necrosis factor α, interleukin (IL) 1α, IL-6, IL-8) and soluble CD40 ligand which can participate in transfusion-related acute lung injury and nonhemolytic transfusion reactions. Storage-induced microparticles have been linked to enhanced platelet aggregation and immune system modulation. Clinically, stored PCs have been correlated with reduced corrected count increment, posttransfusion platelet recovery, and survival across multiple meta-analyses. Fresh PC transfusions have been associated with superior platelet function in vivo; however, these differences were abrogated after a period of circulation. There is currently insufficient evidence to discern the effect of PSLs on transfusion safety. Various bag and storage media changes have been proposed to reduce glycolysis and platelet activation during room temperature storage. Moreover, cryopreservation and cold storage have been proposed as potential methods to prolong PC shelf life by reducing platelet metabolism and bacterial proliferation. However, further work is required to elucidate and manage the PSLs specific to these storage protocols before its implementation in blood banks.
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Affiliation(s)
- Monica Suet Ying Ng
- Critical Care Research Group, The Prince Charles Hospital, Chermside, Queensland, Australia; Faculty of Medicine, University of Queensland, Herston, Queensland, Australia; Research and Development, Australian Red Cross Blood Service, Kelvin Grove, Queensland, Australia.
| | - John-Paul Tung
- Critical Care Research Group, The Prince Charles Hospital, Chermside, Queensland, Australia; Faculty of Medicine, University of Queensland, Herston, Queensland, Australia; Research and Development, Australian Red Cross Blood Service, Kelvin Grove, Queensland, Australia.
| | - John Francis Fraser
- Critical Care Research Group, The Prince Charles Hospital, Chermside, Queensland, Australia; Faculty of Medicine, University of Queensland, Herston, Queensland, Australia.
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29
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Wood B, Johnson L, Hyland RA, Marks DC. Maximising platelet availability by delaying cold storage. Vox Sang 2018; 113:403-411. [PMID: 29633290 DOI: 10.1111/vox.12649] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Revised: 02/28/2018] [Accepted: 03/04/2018] [Indexed: 12/24/2022]
Abstract
BACKGROUND AND OBJECTIVES Cold-stored platelets may be an alternative to conventional room temperature (RT) storage. However, cold-stored platelets are cleared more rapidly from circulation, reducing their suitability for prophylactic transfusion. To minimise wastage, it may be beneficial to store platelets conventionally until near expiry (4 days) for prophylactic use, transferring them to refrigerated storage to facilitate an extended shelf life, reserving the platelets for the treatment of acute bleeding. MATERIALS AND METHODS Two ABO-matched buffy-coat-derived platelets (30% plasma/70% SSP+) were pooled and split to produce matched pairs (n = 8 pairs). One unit was stored at 2-6°C without agitation (day 1 postcollection; cold); the second unit was stored at 20-24°C with constant agitation until day 4 then stored at 2-6°C thereafter (delayed-cold). All units were tested for in vitro quality periodically over 21 days. RESULTS During storage, cold and delayed-cold platelets maintained a similar platelet count. While pH and HSR were significantly higher in delayed-cold platelets, other metabolic markers, including lactate production and glucose consumption, did not differ significantly. Furthermore, surface expression of phosphatidylserine and CD62P, release of soluble CD62P and microparticles were not significantly different, suggesting similar activation profiles. Aggregation responses of delayed-cold platelets followed the same trend as cold platelets once transferred to cold storage, gradually declining over the storage period. CONCLUSION The metabolic and activation profile of delayed-cold platelets was similar to cold-stored platelets. These data suggest that transferring platelets to refrigerated storage when near expiry may be a viable option for maximising platelet inventories.
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Affiliation(s)
- B Wood
- Research and Development, Australian Red Cross Blood Service, Sydney, NSW, Australia
| | - L Johnson
- Research and Development, Australian Red Cross Blood Service, Sydney, NSW, Australia
| | - R A Hyland
- Research and Development, Australian Red Cross Blood Service, Sydney, NSW, Australia
| | - D C Marks
- Research and Development, Australian Red Cross Blood Service, Sydney, NSW, Australia
- Sydney Medical School, University of Sydney, Sydney, NSW, Australia
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30
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George MJ, Bynum J, Nair P, Cap AP, Wade CE, Cox CS, Gill BS. Platelet biomechanics, platelet bioenergetics, and applications to clinical practice and translational research. Platelets 2018; 29:431-439. [PMID: 29580113 DOI: 10.1080/09537104.2018.1453062] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
The purpose of this review is to explore the relationship between platelet bioenergetics and biomechanics and how this relationship affects the clinical interpretation of platelet function devices. Recent experimental and technological advances highlight platelet bioenergetics and biomechanics as alternative avenues for collecting clinically relevant data. Platelet bioenergetics drive energy production for key biomechanical processes like adhesion, spreading, aggregation, and contraction. Platelet function devices like thromboelastography, thromboelastometry, and aggregometry measure these biomechanical processes. Platelet storage, stroke, sepsis, trauma, or the activity of antiplatelet drugs alters measures of platelet function. However, the specific mechanisms governing these alterations in platelet function and how they relate to platelet bioenergetics are still under investigation.
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Affiliation(s)
- Mitchell J George
- a Department of Surgery, McGovern Medical School , The University of Texas Health Science Center , Houston , TX , USA
| | - James Bynum
- c Coagulation & Blood Research, US Army Institute of Surgical Research, JBSA Fort , Sam Houston , TX , USA
| | - Prajeeda Nair
- c Coagulation & Blood Research, US Army Institute of Surgical Research, JBSA Fort , Sam Houston , TX , USA
| | - Andrew P Cap
- a Department of Surgery, McGovern Medical School , The University of Texas Health Science Center , Houston , TX , USA.,c Coagulation & Blood Research, US Army Institute of Surgical Research, JBSA Fort , Sam Houston , TX , USA
| | - Charles E Wade
- a Department of Surgery, McGovern Medical School , The University of Texas Health Science Center , Houston , TX , USA
| | - Charles S Cox
- b Department of Pediatric Surgery, McGovern Medical School , The University of Texas Health Science Center , Houston , TX , USA
| | - Brijesh S Gill
- a Department of Surgery, McGovern Medical School , The University of Texas Health Science Center , Houston , TX , USA
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31
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Sut C, Tariket S, Aubron C, Aloui C, Hamzeh-Cognasse H, Berthelot P, Laradi S, Greinacher A, Garraud O, Cognasse F. The Non-Hemostatic Aspects of Transfused Platelets. Front Med (Lausanne) 2018. [PMID: 29536007 PMCID: PMC5835084 DOI: 10.3389/fmed.2018.00042] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Platelets transfusion is a safe process, but during or after the process, the recipient may experience an adverse reaction and occasionally a serious adverse reaction (SAR). In this review, we focus on the inflammatory potential of platelet components (PCs) and their involvement in SARs. Recent evidence has highlighted a central role for platelets in the host inflammatory and immune responses. Blood platelets are involved in inflammation and various other aspects of innate immunity through the release of a plethora of immunomodulatory cytokines, chemokines, and associated molecules, collectively termed biological response modifiers that behave like ligands for endothelial and leukocyte receptors and for platelets themselves. The involvement of PCs in SARs—particularly on a critically ill patient’s context—could be related, at least in part, to the inflammatory functions of platelets, acquired during storage lesions. Moreover, we focus on causal link between platelet activation and immune-mediated disorders (transfusion-associated immunomodulation, platelets, polyanions, and bacterial defense and alloimmunization). This is linked to the platelets’ propensity to be activated even in the absence of deliberate stimuli and to the occurrence of time-dependent storage lesions.
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Affiliation(s)
- Caroline Sut
- GIMAP-EA3064, Université de Lyon, Saint-Étienne, France.,Etablissement Français du Sang, Auvergne-Rhône-Alpes, Saint-Etienne, France
| | - Sofiane Tariket
- GIMAP-EA3064, Université de Lyon, Saint-Étienne, France.,Etablissement Français du Sang, Auvergne-Rhône-Alpes, Saint-Etienne, France
| | - Cécile Aubron
- Médecine Intensive Réanimation, Centre Hospitalier Régionale et Universitaire de Brest, Université de Bretagne Occidentale, Brest, France
| | - Chaker Aloui
- GIMAP-EA3064, Université de Lyon, Saint-Étienne, France
| | | | | | - Sandrine Laradi
- GIMAP-EA3064, Université de Lyon, Saint-Étienne, France.,Etablissement Français du Sang, Auvergne-Rhône-Alpes, Saint-Etienne, France
| | - Andreas Greinacher
- Institute for Immunology and Transfusion Medicine, University of Greifswald, Greifswald, Germany
| | - Olivier Garraud
- GIMAP-EA3064, Université de Lyon, Saint-Étienne, France.,Institut National de Transfusion Sanguine (INTS), Paris, France
| | - Fabrice Cognasse
- GIMAP-EA3064, Université de Lyon, Saint-Étienne, France.,Etablissement Français du Sang, Auvergne-Rhône-Alpes, Saint-Etienne, France
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32
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Yurkovich JT, Zielinski DC, Yang L, Paglia G, Rolfsson O, Sigurjónsson ÓE, Broddrick JT, Bordbar A, Wichuk K, Brynjólfsson S, Palsson S, Gudmundsson S, Palsson BO. Quantitative time-course metabolomics in human red blood cells reveal the temperature dependence of human metabolic networks. J Biol Chem 2017; 292:19556-19564. [PMID: 29030425 PMCID: PMC5712598 DOI: 10.1074/jbc.m117.804914] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Revised: 09/21/2017] [Indexed: 11/06/2022] Open
Abstract
The temperature dependence of biological processes has been studied at the levels of individual biochemical reactions and organism physiology (e.g. basal metabolic rates) but has not been examined at the metabolic network level. Here, we used a systems biology approach to characterize the temperature dependence of the human red blood cell (RBC) metabolic network between 4 and 37 °C through absolutely quantified exo- and endometabolomics data. We used an Arrhenius-type model (Q10) to describe how the rate of a biochemical process changes with every 10 °C change in temperature. Multivariate statistical analysis of the metabolomics data revealed that the same metabolic network-level trends previously reported for RBCs at 4 °C were conserved but accelerated with increasing temperature. We calculated a median Q10 coefficient of 2.89 ± 1.03, within the expected range of 2-3 for biological processes, for 48 individual metabolite concentrations. We then integrated these metabolomics measurements into a cell-scale metabolic model to study pathway usage, calculating a median Q10 coefficient of 2.73 ± 0.75 for 35 reaction fluxes. The relative fluxes through glycolysis and nucleotide metabolism pathways were consistent across the studied temperature range despite the non-uniform distributions of Q10 coefficients of individual metabolites and reaction fluxes. Together, these results indicate that the rate of change of network-level responses to temperature differences in RBC metabolism is consistent between 4 and 37 °C. More broadly, we provide a baseline characterization of a biochemical network given no transcriptional or translational regulation that can be used to explore the temperature dependence of metabolism.
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Affiliation(s)
- James T Yurkovich
- From the Departments of Bioengineering and
- Bioinformatics and Systems Biology Program, and
| | | | | | - Giuseppe Paglia
- Institute for Biomedicine, EURAC Research, Viale Druso Drususallee 1, 39100 Bolzano, Bozen, Italy
| | - Ottar Rolfsson
- Center for Systems Biology, University of Iceland, Sturlugata 8, IS-101 Reykjavík, Iceland
| | - Ólafur E Sigurjónsson
- The Blood Bank, Landspítali-University Hospital, Snorrabraut 60, 105 Reykjavík, Iceland
- School of Science and Engineering, Reykjavík University, Menntavegur 1, IS-101 Reykjavík, Iceland, and
| | - Jared T Broddrick
- From the Departments of Bioengineering and
- Division of Biological Sciences, University of California, San Diego, La Jolla, California 92093
| | | | - Kristine Wichuk
- Center for Systems Biology, University of Iceland, Sturlugata 8, IS-101 Reykjavík, Iceland
| | - Sigurður Brynjólfsson
- Center for Systems Biology, University of Iceland, Sturlugata 8, IS-101 Reykjavík, Iceland
| | - Sirus Palsson
- Center for Systems Biology, University of Iceland, Sturlugata 8, IS-101 Reykjavík, Iceland
- Sinopia Biosciences, San Diego, California 92101
| | - Sveinn Gudmundsson
- The Blood Bank, Landspítali-University Hospital, Snorrabraut 60, 105 Reykjavík, Iceland
| | - Bernhard O Palsson
- From the Departments of Bioengineering and
- Bioinformatics and Systems Biology Program, and
- Center for Systems Biology, University of Iceland, Sturlugata 8, IS-101 Reykjavík, Iceland
- Pediatrics
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33
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Árnason NÁ, Sigurjónsson ÓE. New strategies to understand platelet storage lesion. ACTA ACUST UNITED AC 2017. [DOI: 10.1111/voxs.12394] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- N. Á. Árnason
- The Blood Bank Landspitali; The National University Hospital of Iceland; Reykjavik Iceland
| | - Ó. E. Sigurjónsson
- 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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34
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Monitoring storage induced changes in the platelet proteome employing label free quantitative mass spectrometry. Sci Rep 2017; 7:11045. [PMID: 28887518 PMCID: PMC5591311 DOI: 10.1038/s41598-017-11643-w] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Accepted: 08/29/2017] [Indexed: 01/10/2023] Open
Abstract
Shelf life of platelet concentrates is limited to 5-7 days due to loss of platelet function during storage, commonly referred to as the platelet storage lesion (PSL). To get more insight into the development of the PSL, we used label free quantitative mass spectrometry to identify changes in the platelet proteome during storage. In total 2501 proteins were accurately quantified in 3 biological replicates on at least 1 of the 7 different time-points analyzed. Significant changes in levels of 21 proteins were observed over time. Gene ontology enrichment analysis of these proteins revealed that the majority of this set was involved in platelet degranulation, secretion and regulated exocytosis. Twelve of these proteins have been shown to reside in α-granules. Upon prolonged storage (13-16 days) elevated levels of α-2-macroglobulin, glycogenin and Ig μ chain C region were identified. Taken together this study identifies novel markers for monitoring of the PSL that may potentially also be used for the detection of "young" and "old" platelets in the circulation.
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35
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Sims C, Salliant N, Worth AJ, Parry R, Mesaros C, Blair IA, Snyder NW. Metabolic tracing analysis reveals substrate-specific metabolic deficits in platelet storage lesion. Transfusion 2017; 57:2683-2689. [PMID: 28836286 DOI: 10.1111/trf.14292] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2017] [Revised: 06/09/2017] [Accepted: 06/13/2017] [Indexed: 12/16/2022]
Abstract
BACKGROUND Storage of platelets (PLTs) results in a progressive defect termed PLT storage lesion (PSL). The PSL is characterized by poor PLT quality on a variety of assays. Metabolic defects are thought to underlie the PSL; thus this study was designed to quantitatively probe specific metabolic pathways over PLT storage. STUDY DESIGN AND METHODS Relative incorporation of stable isotope-labeled substrates was quantified by isotopologue analysis of key acyl-coenzyme A (CoA) thioester products for fresh, viable (after collection, Days 2-5), and expired PLTs (after Day 5). We examined the incorporation of acetate, glucose, and palmitate into acetyl- and succinyl-CoA via liquid chromatography-tandem mass spectrometry. RESULTS Storage-related defects in the incorporation of acetyl-CoA derived from acetate and palmitate were observed. Carbon derived from palmitate and acetate in succinyl-CoA was reduced over storage time. Glucose incorporation into succinyl-CoA increased in viable PLTs and then decreased in expired PLTs. Carbon derived from octanoate and pyruvate remained partially able to incorporate into acetyl- and succinyl-CoA in expired PLTs, with high variability in pyruvate incorporation. CONCLUSION Isotopologue analysis is useful in probing substrate specific defects in the PSL.
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Affiliation(s)
- Carrie Sims
- Division of Traumatology, Surgical Critical Care and Emergency Surgery
| | - Noelle Salliant
- Division of Traumatology, Surgical Critical Care and Emergency Surgery
| | - Andrew J Worth
- Department of Systems Pharmacology and Translational Therapeutics
| | - Robert Parry
- Department of Systems Pharmacology and Translational Therapeutics
| | - Clementina Mesaros
- Department of Systems Pharmacology and Translational Therapeutics.,Penn SRP Center and Center of Excellence in Environmental Toxicology, University of Pennsylvania Perelman School of Medicine
| | - Ian A Blair
- Department of Systems Pharmacology and Translational Therapeutics.,Penn SRP Center and Center of Excellence in Environmental Toxicology, University of Pennsylvania Perelman School of Medicine
| | - Nathaniel W Snyder
- A.J. Drexel Autism Institute, Drexel University, Philadelphia, Pennsylvania
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36
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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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37
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Metabolic re-wiring of isogenic breast epithelial cell lines following epithelial to mesenchymal transition. Cancer Lett 2017; 396:117-129. [DOI: 10.1016/j.canlet.2017.03.019] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Revised: 03/03/2017] [Accepted: 03/12/2017] [Indexed: 12/22/2022]
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38
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Bordbar A, Yurkovich JT, Paglia G, Rolfsson O, Sigurjónsson ÓE, Palsson BO. Elucidating dynamic metabolic physiology through network integration of quantitative time-course metabolomics. Sci Rep 2017; 7:46249. [PMID: 28387366 PMCID: PMC5384226 DOI: 10.1038/srep46249] [Citation(s) in RCA: 98] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Accepted: 03/14/2017] [Indexed: 02/07/2023] Open
Abstract
The increasing availability of metabolomics data necessitates novel methods for deeper data analysis and interpretation. We present a flux balance analysis method that allows for the computation of dynamic intracellular metabolic changes at the cellular scale through integration of time-course absolute quantitative metabolomics. This approach, termed "unsteady-state flux balance analysis" (uFBA), is applied to four cellular systems: three dynamic and one steady-state as a negative control. uFBA and FBA predictions are contrasted, and uFBA is found to be more accurate in predicting dynamic metabolic flux states for red blood cells, platelets, and Saccharomyces cerevisiae. Notably, only uFBA predicts that stored red blood cells metabolize TCA intermediates to regenerate important cofactors, such as ATP, NADH, and NADPH. These pathway usage predictions were subsequently validated through 13C isotopic labeling and metabolic flux analysis in stored red blood cells. Utilizing time-course metabolomics data, uFBA provides an accurate method to predict metabolic physiology at the cellular scale for dynamic systems.
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Affiliation(s)
| | - James T Yurkovich
- Bioengineering Department, University of California, San Diego, La Jolla, CA, USA.,Bioinformatics and Systems Biology Program, University of California, San Diego, La Jolla, CA, USA
| | - Giuseppe Paglia
- Center for Systems Biology, University of Iceland, Reykjavik, Iceland
| | - Ottar Rolfsson
- Center for Systems Biology, University of Iceland, Reykjavik, Iceland
| | - Ólafur E Sigurjónsson
- Blood Bank, Landspitali-University Hospital, Reykjavik, Iceland.,School of Science and Engineering, Reykjavik University, Reykjavik, Iceland
| | - Bernhard O Palsson
- Bioengineering Department, University of California, San Diego, La Jolla, CA, USA.,Bioinformatics and Systems Biology Program, University of California, San Diego, La Jolla, CA, USA.,Department of Pediatrics, University of California San Diego, La Jolla, CA, USA.,Novo Nordisk Foundation Center for Biosustainability, The Technical University of Denmark, Hørsholm, Denmark
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39
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Flow cytometry analysis of platelet populations: usefulness for monitoringthe storage lesion in pooled buffy-coat platelet concentrates. BLOOD TRANSFUSION = TRASFUSIONE DEL SANGUE 2016; 16:83-92. [PMID: 28166864 DOI: 10.2450/2016.0193-16] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 07/12/2016] [Accepted: 10/03/2016] [Indexed: 12/24/2022]
Abstract
BACKGROUND Early detection of the platelet storage lesion is still a challenge in transfusion practice. Using flow cytometry, we evaluated the appearance of the storage lesion, based on the expression of platelet activation markers, in total platelets and platelet populations. MATERIALS AND METHODS Buffy-coat-derived platelet concentrates were stored under standard conditions for 5 days. The expression of activation antigens CD42b, CD36, CD62p and phosphatidylserine on total platelets and populations of small, medium-sized and large platelets was analysed by flow cytometry on storage days 1, 3 and 5. RESULTS The activation/lesion on total platelets and each platelet population was detected on storage day 3, by the increased expression of CD36. On the same day, increased expression of CD42b and CD62p was detected, but only on large platelets. Small and medium-sized platelets had increased CD62p expression only on day 5. Externalisation of phosphatidylserine was not detected. DISCUSSION Evaluation of the level of expression of various activation markers on different platelet populations could be an additional valid analysis in cell quality control of platelet concentrates, and in the assessment of novel approaches to platelet concentrate manipulation.
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40
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14-3-3ζ regulates the mitochondrial respiratory reserve linked to platelet phosphatidylserine exposure and procoagulant function. Nat Commun 2016; 7:12862. [PMID: 27670677 PMCID: PMC5052641 DOI: 10.1038/ncomms12862] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Accepted: 08/10/2016] [Indexed: 12/12/2022] Open
Abstract
The 14-3-3 family of adaptor proteins regulate diverse cellular functions including cell proliferation, metabolism, adhesion and apoptosis. Platelets express numerous 14-3-3 isoforms, including 14-3-3ζ, which has previously been implicated in regulating GPIbα function. Here we show an important role for 14-3-3ζ in regulating arterial thrombosis. Interestingly, this thrombosis defect is not related to alterations in von Willebrand factor (VWF)–GPIb adhesive function or platelet activation, but instead associated with reduced platelet phosphatidylserine (PS) exposure and procoagulant function. Decreased PS exposure in 14-3-3ζ-deficient platelets is associated with more sustained levels of metabolic ATP and increased mitochondrial respiratory reserve, independent of alterations in cytosolic calcium flux. Reduced platelet PS exposure in 14-3-3ζ-deficient mice does not increase bleeding risk, but results in decreased thrombin generation and protection from pulmonary embolism, leading to prolonged survival. Our studies define an important role for 14-3-3ζ in regulating platelet bioenergetics, leading to decreased platelet PS exposure and procoagulant function. Platelets express negatively charged phosphatidylserine (PS) on their plasma membrane when propagating coagulation within a developing thrombus. Here the authors show that an adaptor protein 14-3-3 regulates mitochondrial function and PS exposure and thus platelet procoagulant activity, promising a new therapy to reduce thrombosis.
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41
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Biomarkers defining the metabolic age of red blood cells during cold storage. Blood 2016; 128:e43-50. [PMID: 27554084 DOI: 10.1182/blood-2016-06-721688] [Citation(s) in RCA: 87] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Accepted: 08/12/2016] [Indexed: 12/28/2022] Open
Abstract
Metabolomic investigations of packed red blood cells (RBCs) stored under refrigerated conditions in saline adenine glucose mannitol (SAGM) additives have revealed the presence of 3 distinct metabolic phases, occurring on days 0-10, 10-18, and after day 18 of storage. Here we used receiving operating characteristics curve analysis to identify biomarkers that can differentiate between the 3 metabolic states. We first recruited 24 donors and analyzed 308 samples coming from RBC concentrates stored in SAGM and additive solution 3. We found that 8 extracellular compounds (lactic acid, nicotinamide, 5-oxoproline, xanthine, hypoxanthine, glucose, malic acid, and adenine) form the basis for an accurate classification/regression model and are able to differentiate among the metabolic phases. This model was then validated by analyzing an additional 49 samples obtained by preparing 7 new RBC concentrates in SAGM. Despite the technical variability associated with RBC processing strategies, verification of these markers was independently confirmed in 2 separate laboratories with different analytical setups and different sample sets. The 8 compounds proposed here highly correlate with the metabolic age of packed RBCs, and can be prospectively validated as biomarkers of the RBC metabolic lesion.
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42
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Hegde S, Cancelas JA. Dissecting the metabolic pathways controlling platelet survival in vivo: are our platelets what they eat? Transfusion 2016; 56:1928-31. [PMID: 27500916 DOI: 10.1111/trf.13684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Accepted: 05/09/2016] [Indexed: 11/28/2022]
Affiliation(s)
- Shailaja Hegde
- Hoxworth Blood Center, University of Cincinnati College of Medicine.,Division of Experimental Hematology, Cincinnati Children's Research Foundation, Cincinnati Children's Hospital Medical Center, Cincinnati, OH
| | - Jose A Cancelas
- Hoxworth Blood Center, University of Cincinnati College of Medicine.,Division of Experimental Hematology, Cincinnati Children's Research Foundation, Cincinnati Children's Hospital Medical Center, Cincinnati, OH
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43
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Paglia G, Sigurjónsson ÓE, Bordbar A, Rolfsson Ó, Magnusdottir M, Palsson S, Wichuk K, Gudmundsson S, Palsson BO. Metabolic fate of adenine in red blood cells during storage in SAGM solution. Transfusion 2016; 56:2538-2547. [PMID: 27491795 DOI: 10.1111/trf.13740] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Revised: 05/16/2016] [Accepted: 06/01/2016] [Indexed: 12/16/2022]
Abstract
BACKGROUND Red blood cells (RBCs) are routinely stored and transfused worldwide. Recently, metabolomics have shown that RBCs experience a three-phase metabolic decay process during storage, resulting in the definition of three distinct metabolic phenotypes, occurring between Days 1 and 10, 11 and 17, and 18 and 46. Here we use metabolomics and stable isotope labeling analysis to study adenine metabolism in RBCs. STUDY DESIGN AND METHODS A total of 6 units were prepared in SAGM or modified additive solutions (ASs) containing 15 N5 -adenine. Three of them were spiked with 15 N5 -adenine on Days 10, 14, and 17 during storage. Each unit was sampled 10 times spanning Day 1 to Day 32. At each time point metabolic profiling was performed. RESULTS We increased adenine concentration in the AS and we pulsed the adenine concentration during storage and found that in both cases the RBCs' main metabolic pathways were not affected. Our data clearly show that RBCs cannot consume adenine after 18 days of storage, even if it is still present in the storage solution. However, increased levels of adenine influenced S-adenosylmethionine metabolism. CONCLUSION In this work, we have studied in detail the metabolic fate of adenine during RBC storage in SAGM. Adenine is one of the main substrates used by RBCs, but the metabolic shift observed during storage is not caused by an absence of adenine later in storage. The rate of adenine consumption strongly correlated with duration of storage but not with the amount of adenine present in the AS.
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Affiliation(s)
- Giuseppe Paglia
- Center for Biomedicine, European Academy of Bolzano/Bozen, Bolzano, Italy. .,Center for Systems Biology, University of Iceland, Reykjavik, Iceland;.
| | - Ólafur E Sigurjónsson
- The Blood Bank, Landspitali-University Hospital, Reykjavik, Iceland.,School of Science and Engineering, Reykjavik University, Reykjavik, Iceland; and
| | | | - Óttar Rolfsson
- Center for Systems Biology, University of Iceland, Reykjavik, Iceland
| | | | - Sirus Palsson
- Center for Systems Biology, University of Iceland, Reykjavik, Iceland.,Sinopia Biosciences, San Diego, California
| | - Kristine Wichuk
- Center for Systems Biology, University of Iceland, Reykjavik, Iceland
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44
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Zimring JC, Slichter S, Odem-Davis K, Felcyn JR, Kapp LM, Bell LN, Gunst PR, Corson J, Jones MK, Pellham E, Bailey SL, Fu X. Metabolites in stored platelets associated with platelet recoveries and survivals. Transfusion 2016; 56:1974-83. [DOI: 10.1111/trf.13631] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Revised: 03/03/2016] [Accepted: 03/05/2016] [Indexed: 01/19/2023]
Affiliation(s)
- James C. Zimring
- Bloodworks NW Research Institute; and
- Department of Laboratory Medicine and the; University of Washington School of Medicine; Seattle Washington
- Department of Internal Medicine, Division of Hematology; University of Washington School of Medicine; Seattle Washington
| | - Sherrill Slichter
- Bloodworks NW Research Institute; and
- Department of Internal Medicine, Division of Hematology; University of Washington School of Medicine; Seattle Washington
| | | | | | | | | | - P. Ross Gunst
- Metabolon, Inc.; Research Triangle Park North Carolina
| | | | | | | | | | - Xiaoyun Fu
- Bloodworks NW Research Institute; and
- Department of Internal Medicine, Division of Hematology; University of Washington School of Medicine; Seattle Washington
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45
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Paglia G, Stocchero M, Cacciatore S, Lai S, Angel P, Alam MT, Keller M, Ralser M, Astarita G. Unbiased Metabolomic Investigation of Alzheimer's Disease Brain Points to Dysregulation of Mitochondrial Aspartate Metabolism. J Proteome Res 2016; 15:608-18. [PMID: 26717242 DOI: 10.1021/acs.jproteome.5b01020] [Citation(s) in RCA: 94] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Alzheimer's disease (AD) is the most common cause of adult dementia. Yet the complete set of molecular changes accompanying this inexorable, neurodegenerative disease remains elusive. Here we adopted an unbiased lipidomics and metabolomics approach to surveying frozen frontal cortex samples from clinically characterized AD patients (n = 21) and age-matched controls (n = 19), revealing marked molecular differences between them. Then, by means of metabolomic pathway analysis, we incorporated the novel molecular information into the known biochemical pathways and compared it with the results of a metabolomics meta-analysis of previously published AD research. We found six metabolic pathways of the central metabolism as well as glycerophospholipid metabolism predominantly altered in AD brains. Using targeted metabolomics approaches and MS imaging, we confirmed a marked dysregulation of mitochondrial aspartate metabolism. The altered metabolic pathways were further integrated with clinical data, showing various degrees of correlation with parameters of dementia and AD pathology. Our study highlights specific, altered biochemical pathways in the brains of individuals with AD compared with those of control subjects, emphasizing dysregulation of mitochondrial aspartate metabolism and supporting future venues of investigation.
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Affiliation(s)
- Giuseppe Paglia
- Center for Biomedicine, European Academy of Bolzano/Bozen , Via Galvani 31, 39100 Bolzano, Italy.,Center for Systems Biology, University of Iceland , Sturlugata 8, IS 101 Reykjavik, Iceland
| | - Matteo Stocchero
- S-IN Soluzioni Informatiche S.r.l. , via G. Ferrari 14, 36100 Vicenza, Italy
| | - Stefano Cacciatore
- Institute of Reproductive and Developmental Biology, Imperial College London , London SW7 2AZ, United Kingdom
| | - Steven Lai
- Waters Corporation , Milford, Massachusetts 01757, United States
| | - Peggi Angel
- Protea Biosciences Group, Incorporated Morgantown, West Virginia 26505, United States
| | - Mohammad Tauqeer Alam
- Department of Biochemistry and Cambridge Systems Biology Centre, University of Cambridge , 80 Tennis Court Road, Cambridge CB2 1GA, United Kingdom
| | - Markus Keller
- Department of Biochemistry and Cambridge Systems Biology Centre, University of Cambridge , 80 Tennis Court Road, Cambridge CB2 1GA, United Kingdom
| | - Markus Ralser
- Department of Biochemistry and Cambridge Systems Biology Centre, University of Cambridge , 80 Tennis Court Road, Cambridge CB2 1GA, United Kingdom.,Mill Hill Laboratory, The Francis Crick Institute , The Ridgeway, London NW1 7AA, United Kingdom
| | - Giuseppe Astarita
- Waters Corporation , Milford, Massachusetts 01757, United States.,Department of Biochemistry and Molecular & Cellular Biology, Georgetown University , Washington, District of Columbia 20007, United States
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46
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Bordbar A, Johansson PI, Paglia G, Harrison SJ, Wichuk K, Magnusdottir M, Valgeirsdottir S, Gybel-Brask M, Ostrowski SR, Palsson S, Rolfsson O, Sigurjónsson OE, Hansen MB, Gudmundsson S, Palsson BO. Identified metabolic signature for assessing red blood cell unit quality is associated with endothelial damage markers and clinical outcomes. Transfusion 2016; 56:852-62. [PMID: 26749434 DOI: 10.1111/trf.13460] [Citation(s) in RCA: 79] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2015] [Revised: 11/03/2015] [Accepted: 11/10/2015] [Indexed: 12/23/2022]
Abstract
BACKGROUND There has been interest in determining whether older red blood cell (RBC) units have negative clinical effects. Numerous observational studies have shown that older RBC units are an independent factor for patient mortality. However, recently published randomized clinical trials have shown no difference of clinical outcome for patients receiving old or fresh RBCs. An overlooked but essential issue in assessing RBC unit quality and ultimately designing the necessary clinical trials is a metric for what constitutes an old or fresh RBC unit. STUDY DESIGN AND METHODS Twenty RBC units were profiled using quantitative metabolomics over 42 days of storage in SAGM with 3- to 4-day time intervals. Metabolic pathway usage during storage was assessed using systems biology methods. The detected time intervals of the metabolic states were compared to clinical outcomes. RESULTS Using multivariate statistics, we identified a nonlinear decay process exhibiting three distinct metabolic states (Days 0-10, 10-17, and 17-42). Hematologic variables traditionally measured in the transfusion setting (e.g., pH, hemolysis, RBC indices) did not distinguish these three states. Systemic changes in pathway usage occurred between the three states, with key pathways changing in both magnitude and direction. Finally, an association was found between the time periods of the metabolic states with the clinical outcomes of more than 280,000 patients in the country of Denmark transfused over the past 15 years and endothelial damage markers in healthy volunteers undergoing autologous transfusions. CONCLUSION The state of RBC metabolism may be a better indicator of cellular quality than traditional hematologic variables.
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Affiliation(s)
| | - Pär I Johansson
- Section for Transfusion Medicine, Capital Region Blood Bank, Rigshopitalet, University of Copenhagen, Copenhagen, Denmark
| | - Giuseppe Paglia
- Center for Systems Biology, University of Iceland, Reykjavik, Iceland
| | - Scott J Harrison
- Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Lyngby, Denmark
| | - Kristine Wichuk
- Center for Systems Biology, University of Iceland, Reykjavik, Iceland
| | | | | | - Mikkel Gybel-Brask
- Section for Transfusion Medicine, Capital Region Blood Bank, Rigshopitalet, University of Copenhagen, Copenhagen, Denmark
| | - Sisse R Ostrowski
- Section for Transfusion Medicine, Capital Region Blood Bank, Rigshopitalet, University of Copenhagen, Copenhagen, Denmark
| | - Sirus Palsson
- Sinopia Biosciences, San Diego, California.,Center for Systems Biology, University of Iceland, Reykjavik, Iceland
| | - Ottar Rolfsson
- Center for Systems Biology, University of Iceland, Reykjavik, Iceland
| | - Olafur E Sigurjónsson
- Blood Bank, Landspitali-University Hospital.,School of Science and Engineering, Reykjavik University, Reykjavik, Iceland
| | - Morten B Hansen
- Section for Transfusion Medicine, Capital Region Blood Bank, Rigshopitalet, University of Copenhagen, Copenhagen, Denmark
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47
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Nemkov T, Hansen KC, Dumont LJ, D'Alessandro A. Metabolomics in transfusion medicine. Transfusion 2015; 56:980-93. [PMID: 26662506 DOI: 10.1111/trf.13442] [Citation(s) in RCA: 88] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Revised: 11/09/2015] [Accepted: 11/09/2015] [Indexed: 12/13/2022]
Abstract
Biochemical investigations on the regulatory mechanisms of red blood cell (RBC) and platelet (PLT) metabolism have fostered a century of advances in the field of transfusion medicine. Owing to these advances, storage of RBCs and PLT concentrates has become a lifesaving practice in clinical and military settings. There, however, remains room for improvement, especially with regard to the introduction of novel storage and/or rejuvenation solutions, alternative cell processing strategies (e.g., pathogen inactivation technologies), and quality testing (e.g., evaluation of novel containers with alternative plasticizers). Recent advancements in mass spectrometry-based metabolomics and systems biology, the bioinformatics integration of omics data, promise to speed up the design and testing of innovative storage strategies developed to improve the quality, safety, and effectiveness of blood products. Here we review the currently available metabolomics technologies and briefly describe the routine workflow for transfusion medicine-relevant studies. The goal is to provide transfusion medicine experts with adequate tools to navigate through the otherwise overwhelming amount of metabolomics data burgeoning in the field during the past few years. Descriptive metabolomics data have represented the first step omics researchers have taken into the field of transfusion medicine. However, to up the ante, clinical and omics experts will need to merge their expertise to investigate correlative and mechanistic relationships among metabolic variables and transfusion-relevant variables, such as 24-hour in vivo recovery for transfused RBCs. Integration with systems biology models will potentially allow for in silico prediction of metabolic phenotypes, thus streamlining the design and testing of alternative storage strategies and/or solutions.
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Affiliation(s)
- Travis Nemkov
- Department of Biochemistry and Molecular Genetics, University of Colorado Denver-Anschutz Medical Campus, Aurora, Colorado
| | - Kirk C Hansen
- Department of Biochemistry and Molecular Genetics, University of Colorado Denver-Anschutz Medical Campus, Aurora, Colorado
| | - Larry J Dumont
- Department of Pathology, Geisel School of Medicine at Dartmouth, Lebanon, New Hampshire
| | - Angelo D'Alessandro
- Department of Biochemistry and Molecular Genetics, University of Colorado Denver-Anschutz Medical Campus, Aurora, Colorado
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48
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Abonnenc M, Sonego G, Crettaz D, Aliotta A, Prudent M, Tissot JD, Lion N. In vitro study of platelet function confirms the contribution of the ultraviolet B (UVB) radiation in the lesions observed in riboflavin/UVB-treated platelet concentrates. Transfusion 2015; 55:2219-30. [DOI: 10.1111/trf.13123] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2014] [Revised: 02/24/2015] [Accepted: 02/28/2015] [Indexed: 12/23/2022]
Affiliation(s)
- Mélanie Abonnenc
- Laboratoire de Recherche sur les Produits Sanguins Epalinges; Transfusion Interrégionale CRS; Epalinges Switzerland
| | - Giona Sonego
- Laboratoire de Recherche sur les Produits Sanguins Epalinges; Transfusion Interrégionale CRS; Epalinges Switzerland
| | - David Crettaz
- Laboratoire de Recherche sur les Produits Sanguins Epalinges; Transfusion Interrégionale CRS; Epalinges Switzerland
| | - Alessandro Aliotta
- Laboratoire de Recherche sur les Produits Sanguins Epalinges; Transfusion Interrégionale CRS; Epalinges Switzerland
| | - Michel Prudent
- Laboratoire de Recherche sur les Produits Sanguins Epalinges; Transfusion Interrégionale CRS; Epalinges Switzerland
| | - Jean-Daniel Tissot
- Laboratoire de Recherche sur les Produits Sanguins Epalinges; Transfusion Interrégionale CRS; Epalinges Switzerland
| | - Niels Lion
- Laboratoire de Recherche sur les Produits Sanguins Epalinges; Transfusion Interrégionale CRS; Epalinges Switzerland
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49
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Sandgren P, Rönnmark J, Axelsson J. In vitro affinity reduction of biologic response modifiers from production buffy coat platelets exposed to recombinant protein receptors. Transfusion 2015; 55:1919-26. [DOI: 10.1111/trf.13051] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2014] [Revised: 01/16/2015] [Accepted: 01/16/2015] [Indexed: 01/09/2023]
Affiliation(s)
- Per Sandgren
- Department of Clinical Immunology and Transfusion Medicine
| | - Jenny Rönnmark
- JJK Medical Development AB/South End Advisory AB; Stockholm Sweden
| | - Jonas Axelsson
- Department of Medical Biochemistry and Biophysics; Karolinska University Hospital and Karolinska Institutet
- JJK Medical Development AB/South End Advisory AB; Stockholm Sweden
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50
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Paglia G, Sigurjónsson ÓE, Rolfsson Ó, Hansen MB, Brynjólfsson S, Gudmundsson S, Palsson BO. Metabolomic analysis of platelets during storage: a comparison between apheresis- and buffy coat-derived platelet concentrates. Transfusion 2014; 55:301-13. [PMID: 25156572 DOI: 10.1111/trf.12834] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2014] [Revised: 07/15/2014] [Accepted: 07/16/2014] [Indexed: 12/12/2022]
Abstract
BACKGROUND Platelet concentrates (PCs) can be prepared using three methods: platelet (PLT)-rich plasma, apheresis, and buffy coat. The aim of this study was to obtain a comprehensive data set that describes metabolism of buffy coat-derived PLTs during storage and to compare it with a previously published parallel data set obtained for apheresis-derived PLTs. STUDY DESIGN AND METHODS During storage we measured more than 150 variables in 8 PLT units, prepared by the buffy coat method. Samples were collected at seven different time points resulting in a data set containing more than 8000 measurements. This data set was obtained by combining a series of standard quality control assays to monitor the quality of stored PLTs and a deep coverage metabolomics study using liquid chromatography coupled with mass spectrometry. RESULTS Stored PLTs showed a distinct metabolic transition occurring 4 days after their collection. The transition was evident in PLT produced by both production methods. Apheresis-derived PLTs showed a clearer phenotype of PLT activation during early days of storage. The activated phenotype of apheresis PLTs was accompanied by a higher metabolic activity, especially related to glycolysis and the tricarboxylic acid cycle. Moreover, the extent of the activation differed between bags resulting in interbag variability in the storage lesion of apheresis-prepared PLTs. This may be related to donor-related polymorphism. CONCLUSION This study demonstrated two discrete metabolic phenotypes in stored PLTs prepared with both apheresis and buffy coat methods. PLT activation occurs during the first metabolic phenotype and might lead to a low reproducibility of the apheresis PCs.
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Affiliation(s)
- Giuseppe Paglia
- Center for Systems Biology, University of Iceland, Reykjavik, Iceland
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