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Kvernberg J, Grove EL, Ommen HB, Hvas AM. Platelet Function and Turnover in Essential Thrombocythemia: A Systematic Review. Semin Thromb Hemost 2021; 47:90-101. [PMID: 33525042 DOI: 10.1055/s-0040-1718873] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Essential thrombocythemia (ET) is a myeloproliferative neoplasm characterized by increased platelet counts. ET has an incidence of 0.6 to 2.5 per 100,000 per year in Europe and North America. The disease is characterized by an increased thromboembolic risk, possibly caused by increased platelet counts. Furthermore, increased platelet function and/or increased platelet turnover may play a role. We aimed to explore: (1) whether platelet function and platelet turnover are increased in ET patients compared with healthy controls, and (2) whether these parameters are associated with increased thromboembolic risk and, therefore, may support decision-making on treatment in ET patients. We performed a systematic literature search on March 20, 2020 in Embase and PubMed following the Preferred Reporting Items for Systematic and Meta-Analysis (PRISMA) guidelines. In total, 1,923 articles were identified, 38 of which were included according to prespecified inclusion and exclusion criteria. Among the 38 studies, platelet activation (CD36 and CD62P) was investigated in 18 studies and was found to be increased in 12 of these. Platelet aggregation was investigated in 21 studies and was reported to be reduced in 20 of them. Platelet turnover (immature platelet count and mean platelet volume) was investigated in five studies with inconclusive results. No parameters were reported to predict the risk of thromboembolic events. In conclusion, platelet activation was increased in ET patients, but platelet aggregation was reduced. Future studies exploring markers of thromboembolic risk in ET patients are warranted.
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Affiliation(s)
- Joachim Kvernberg
- Department of Clinical Biochemistry, Aarhus University Hospital, Aarhus, Denmark
| | - Erik Lerkevang Grove
- Department of Cardiology, Aarhus University Hospital, Aarhus, Denmark.,Department of Clinical Medicine, Faculty of Health, Aarhus University, Aarhus, Denmark
| | - Hans Beier Ommen
- Department of Clinical Medicine, Faculty of Health, Aarhus University, Aarhus, Denmark.,Department of Hematology, Aarhus University Hospital, Aarhus, Denmark
| | - Anne-Mette Hvas
- Department of Clinical Biochemistry, Aarhus University Hospital, Aarhus, Denmark.,Department of Clinical Medicine, Faculty of Health, Aarhus University, Aarhus, Denmark
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Shahrabi S, Ehsanpour A, Heidary S, Shahjahani M, Behzad MM. Expression of CD markers in JAK2 V617F positive myeloproliferative neoplasms: Prognostic significance. Oncol Rev 2018; 12:373. [PMID: 30405895 PMCID: PMC6199554 DOI: 10.4081/oncol.2018.373] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Accepted: 06/20/2018] [Indexed: 01/08/2023] Open
Abstract
Myeloproliferative neoplasms (MPNs) are clonal stem cell disorders characterized by the presence of JAK2V617F mutation. Thrombohemorrhagic as well as autoimmune or inflammatory phenomena are common clinical outcomes of these disorders. Recent studies have shown that abnormality in frequency and function of blood cells manifested by an alteration in CD markers' expression patterns play a key role in these complications. So, there may be a relationship between CD markers' expressions and prognosis of JAK2V617F positive MPNs. Therefore, in this review, we have focused on these abnormalities from the perspective of changing expressions of CD markers and assessment of the relationship between these changes with prognosis of JAK2V617F positive MPNs. It can be stated that the abnormal expression of a large number of CD markers can be used as a prognostic biomarker for clinical outcomes including thrombohememorrhagic events, as well as autoimmune and leukemic transformation in JAK2V617F positive MPNs. Considering the possible role of CD markers' expressions in JAK2V617F MPNs prognosis, further studies are needed to confirm the relationship between the expression of CD markers with prognosis to be able to find an appropriate therapeutic approach via targeting CD markers.
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Affiliation(s)
- Saeid Shahrabi
- Department of Biochemistry and Hematology, Faculty of Medicine, Semnan University of Medical Sciences, Semnan
| | - Ali Ehsanpour
- Thalassemia and Hemoglobinopathy Research Center, Research Institute of Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Somayyeh Heidary
- Thalassemia and Hemoglobinopathy Research Center, Research Institute of Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Mohammad Shahjahani
- Thalassemia and Hemoglobinopathy Research Center, Research Institute of Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Masumeh Maleki Behzad
- Thalassemia and Hemoglobinopathy Research Center, Research Institute of Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
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Podda G, Scavone M, Femia EA, Cattaneo M. Aggregometry in the settings of thrombocytopenia, thrombocytosis and antiplatelet therapy. Platelets 2018. [DOI: 10.1080/09537104.2018.1445843] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- GianMarco Podda
- Medicina III, Ospedale San Paolo, Milano, Italy
- Dipartimento di Scienze della Salute, Università degli Studi di Milano, Milano, Italy
| | - Mariangela Scavone
- Medicina III, Ospedale San Paolo, Milano, Italy
- Dipartimento di Scienze della Salute, Università degli Studi di Milano, Milano, Italy
| | - Eti Alessandra Femia
- Medicina III, Ospedale San Paolo, Milano, Italy
- Dipartimento di Scienze della Salute, Università degli Studi di Milano, Milano, Italy
| | - Marco Cattaneo
- Medicina III, Ospedale San Paolo, Milano, Italy
- Dipartimento di Scienze della Salute, Università degli Studi di Milano, Milano, Italy
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Masselli E, Carubbi C, Pozzi G, Martini S, Aversa F, Galli D, Gobbi G, Mirandola P, Vitale M. Platelet expression of PKCepsilon oncoprotein in myelofibrosis is associated with disease severity and thrombotic risk. ANNALS OF TRANSLATIONAL MEDICINE 2017; 5:273. [PMID: 28758099 DOI: 10.21037/atm.2017.06.22] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
BACKGROUND Myelofibrosis (MF) is the most aggressive Philadelphia-negative chronic myeloproliferative neoplasm (MPN) with high morbidity and mortality due to thrombo-hemorrhagic complications and leukemic transformation. MF is characterized by profound alterations of megakaryocytopoiesis, with consequent abnormalities in platelet number and function. We recently showed that the overexpression of the oncoprotein PKCepsilon plays a key role in the aberrant differentiation of MF megakaryocyte clone and that its levels correlate with disease burden. Moreover, our group previously demonstrated that PKCepsilon is over-expressed in platelets from patients with acute myocardial infarction (MI) and accounts for their increased reactivity. On these bases, we investigated here the activation state and PKCepsilon expression of MF platelets, testing potential correlations with thrombotic risk and disease aggressiveness. METHODS Platelets were isolated from peripheral blood samples of MF patients and healthy donors (HDs). Patients were stratified according to the IPSS/DIPSS risk category and history of cardiovascular events. Platelet activation was assessed by flow cytometry. PKCepsilon mRNA and protein levels were determined by real time-PCR and western blot. RESULTS MF platelets circulate in an activated status and display significantly higher levels of PKCepsilon compared to HDs. In MF patients, PKCepsilon platelet levels were associated with high-risk disease as well as with a positive history of major cardiovascular events. CONCLUSIONS PKCepsilon is configuring as the common denominator of neoplastic transformation and thrombus formation in MF. Overall, our data pinpoint PKCepsilon as a potential novel biomarker of disease aggressiveness and thrombotic risk in this hematologic neoplasm.
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Affiliation(s)
- Elena Masselli
- Department of Medicine and Surgery, University of Parma, Ospedale Maggiore, Parma 43126, Italy
| | - Cecilia Carubbi
- Department of Medicine and Surgery, University of Parma, Ospedale Maggiore, Parma 43126, Italy
| | - Giulia Pozzi
- Department of Medicine and Surgery, University of Parma, Ospedale Maggiore, Parma 43126, Italy
| | - Silvia Martini
- Department of Medicine and Surgery, University of Parma, Ospedale Maggiore, Parma 43126, Italy
| | - Franco Aversa
- Hematology and BMT Center, Azienda Ospedaliero-Universitaria di Parma, Parma, Italy
| | - Daniela Galli
- Department of Medicine and Surgery, University of Parma, Ospedale Maggiore, Parma 43126, Italy
| | - Giuliana Gobbi
- Department of Medicine and Surgery, University of Parma, Ospedale Maggiore, Parma 43126, Italy
| | - Prisco Mirandola
- Department of Medicine and Surgery, University of Parma, Ospedale Maggiore, Parma 43126, Italy
| | - Marco Vitale
- Department of Medicine and Surgery, University of Parma, Ospedale Maggiore, Parma 43126, Italy.,CoreLab, Azienda Ospedaliero-Universitaria di Parma, Parma, Italy
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Assessment of changes in membrane properties of platelets from patients with chronic myeloid leukaemia in different stages of the disease. Blood Coagul Fibrinolysis 2014; 25:142-50. [PMID: 24346354 DOI: 10.1097/mbc.0b013e328365776f] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Patients with chronic myeloproliferative leukemia (CML) have frequent haemorrhage and/or thrombosis in their medical history. The mechanisms of these major and life-threatening complications remain unclear. Membrane organization influences many of the unique cellular functions and is strongly correlated, among other factors, to the membrane lipid composition; it may be evaluated by following up the membrane fluidity and aggregation properties of the platelet. In this study, we evaluated the platelet aggregation, the expression of platelet surface receptors, the membrane fluidity (as evaluated by fluorescence anisotropy) and its correlation to reactive oxygen species (ROS) production, in patients with chronic myeloid leukaemia (CML). It was found that the patients in accelerated and blastic phase of CML present an altered platelet aggregation response to all reagents except for ristocetin as compared with chronic phase group, which shows only epinephrine-altered response. We also found that BCR/ABL transcript leads to higher levels of ROS in accelerated and blastic CML phases. Patients without molecular remission have lower platelet membrane fluidity. We obtained a positive correlation between ROS level and membrane fluorescence anisotropy changes. The CD41 expression was decreased in CML patients and P selectin expression was found to be higher in these patients than in healthy volunteers. Platelets of CML patients have altered aggregation parameters in accelerated and blastic phases, in which BCR/ABL transcript level is increased. The increased level of ROS in CML patients without molecular remission is associated with a decrease in fluidity of platelet membrane and expression of CD41/CD61 receptors. These findings may contribute to understanding the mechanism of the altered platelet response reported in CML patients.
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Wood P. Tegaserod in the treatment of constipation-predominant irritable bowel syndrome. Do the risks outweigh the benefits? Naunyn Schmiedebergs Arch Pharmacol 2011; 385:1-3. [PMID: 21969099 DOI: 10.1007/s00210-011-0694-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2011] [Accepted: 09/15/2011] [Indexed: 12/17/2022]
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Senyuk V, Rinaldi CR, Li D, Cattaneo F, Stojanovic A, Pane F, Du X, Mahmud N, Dickstein J, Nucifora G. Consistent up-regulation of Stat3 Independently of Jak2 mutations in a new murine model of essential thrombocythemia. Cancer Res 2009; 69:262-71. [PMID: 19118011 DOI: 10.1158/0008-5472.can-08-2534] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Janus-activated kinase 2 (JAK2) mutations are common in myeloproliferative disorders; however, although they are detected in virtually all polycythemia vera patients, they are found in approximately 50% of essential thrombocythemia (ET) patients, suggesting that converging pathways/abnormalities underlie the onset of ET. Recently, the chromosomal translocation 3;21, leading to the fusion gene AML1/MDS1/EVI1 (AME), was observed in an ET patient. After we forced the expression of AME in the bone marrow (BM) of C57BL/6J mice, all the reconstituted mice died of a disease with symptoms similar to ET with a latency of 8 to 16 months. Peripheral blood smears consistently showed an elevated number of dysplastic platelets with anisocytosis, degranulation, and giant size. Although the AME-positive mice did not harbor Jak2 mutations, the BM of most of them had significantly higher levels of activated Stat3 than the controls. With combined biochemical and biological assays we found that AME binds to the Stat3 promoter leading to its up-regulation. Signal transducers and activators of transcription 3 (STAT3) analysis of a small group of ET patients shows that in about half of the patients, there is STAT3 hyperactivation independently of JAK2 mutations, suggesting that the hyperactivation of STAT3 by JAK2 mutations or promoter activation may be a critical step in development of ET.
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Affiliation(s)
- Vitalyi Senyuk
- Department of Medicine, College of Medicine, University of Illinois at Chicago, 909 Wolcott Avenue, Chicago, IL 60612, USA
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Acar K, Salih A, Beyazit Y, Haznedaroglu IC, Koca E, Cetiner D, Sayinalp N, Buyukasik Y, Goker H, Kirazli S, Ozcebe OI. Soluble Platelet Glycoprotein V in Distinct Disease States of Pathological Thrombopoiesis. J Natl Med Assoc 2008; 100:86-90. [DOI: 10.1016/s0027-9684(15)31180-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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