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Liu Y, Wang Y, Huang G, Wu S, Liu X, Chen S, Luo P, Liu C, Zuo X. The role of leukocytes in myeloproliferative neoplasm thromboinflammation. J Leukoc Biol 2024; 115:1020-1028. [PMID: 38527797 DOI: 10.1093/jleuko/qiae071] [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: 01/04/2024] [Revised: 03/04/2024] [Accepted: 03/06/2024] [Indexed: 03/27/2024] Open
Abstract
Classic myeloproliferative neoplasms lacking the Philadelphia chromosome are stem cell disorders characterized by the proliferation of myeloid cells in the bone marrow and increased counts of peripheral blood cells. The occurrence of thrombotic events is a common complication in myeloproliferative neoplasms. The heightened levels of cytokines play a substantial role in the morbidity and mortality of these patients, establishing a persistent proinflammatory condition that culminates in thrombosis. The etiology of thrombosis remains intricate and multifaceted, involving blood cells and endothelial dysfunction, the inflammatory state, and the coagulation cascade, leading to hypercoagulability. Leukocytes play a pivotal role in the thromboinflammatory process of myeloproliferative neoplasms by releasing various proinflammatory and prothrombotic factors as well as interacting with other cells, which contributes to the amplification of the clotting cascade and subsequent thrombosis. The correlation between increased leukocyte counts and thrombotic risk has been established. However, there is a need for an accurate biomarker to assess leukocyte activation. Lastly, tailored treatments to address the thrombotic risk in myeloproliferative neoplasms are needed. Therefore, this review aims to summarize the potential mechanisms of leukocyte involvement in myeloproliferative neoplasm thromboinflammation, propose potential biomarkers for leukocyte activation, and discuss promising treatment options for controlling myeloproliferative neoplasm thromboinflammation.
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Affiliation(s)
- Yu Liu
- Department of Hematology, Zhongnan Hospital of Wuhan University, 169, East Lake Road, Wuchang District, Wuhan 430071, China
| | - Yingying Wang
- Department of Immunology, College of Basic Medicine, Chongqing Medical University, Yixueyuan Road, Yuzhong District, Chongqing 400016, P.R. China
| | - Gang Huang
- Department of Cell Systems & Anatomy, Department of Pathology & Laboratory, Medicine UT Health San Antonio, Joe R. and Teresa Lozano Long School of Medicine, 8403 Floyd Curl Drive, San Antonio, TX 78229, United States
| | - Sanyun Wu
- Department of Hematology, Zhongnan Hospital of Wuhan University, 169, East Lake Road, Wuchang District, Wuhan 430071, China
| | - Xiaoyan Liu
- Department of Hematology, Zhongnan Hospital of Wuhan University, 169, East Lake Road, Wuchang District, Wuhan 430071, China
| | - Shuo Chen
- Biomedical Sciences Graduate Program, Ohio State University, Columbus, OH 43210, United States
| | - Ping Luo
- Department of Hematology, Zhongnan Hospital of Wuhan University, 169, East Lake Road, Wuchang District, Wuhan 430071, China
| | - Chang Liu
- Department of Hematology, Zhongnan Hospital of Wuhan University, 169, East Lake Road, Wuchang District, Wuhan 430071, China
| | - Xuelan Zuo
- Department of Hematology, Zhongnan Hospital of Wuhan University, 169, East Lake Road, Wuchang District, Wuhan 430071, China
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Andreescu M, Andreescu B. A Review About the Assessment of the Bleeding and Thrombosis Risk for Patients With Myeloproliferative Neoplasms Scheduled for Surgery. Cureus 2024; 16:e56008. [PMID: 38606222 PMCID: PMC11007487 DOI: 10.7759/cureus.56008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/12/2024] [Indexed: 04/13/2024] Open
Abstract
Myeloproliferative neoplasms (MPNs) present a unique challenge in surgical management due to their inherent predisposition to both bleeding and thrombosis. MPNs are a heterogenous group of acquired clonal conditions. The three classic MPNs are essential thrombocythemia (ET), myelofibrosis (PMF), and polycythemia vera (PV). All subtypes of MPN are associated with both thrombotic and bleeding complications. There are four risk categories for thrombosis in MPN patients: age, thrombosis history, and JAK-2 mutation. They are further classified as very low, low, intermediate, and high risk. The genetic landscape of MPN is fascinating and complex like all myeloid disorders. Bleeding risk can be assessed through leukocytosis, thrombocytosis, acquired von Willebrand syndrome (AVWS), and a previous history of bleeding in a patient. Risk assessment and perioperative management are important aspects of improving the quality of life and preventing complications in surgeries. Preoperative management includes a risk assessment of venous thromboembolism, use of appropriate pharmacological treatment, platelet count control, and correction and cardiovascular risk factors. This review summarizes the assessment of bleeding and thrombosis risk for patients with MPNs scheduled for surgery. Furthermore, this review discusses various tools that can be used to identify MPN patients at risk of thrombosis prior to surgery.
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Affiliation(s)
- Mihaela Andreescu
- Faculty of Medicine, Titu Maiorescu University, Bucharest, ROU
- Hematology, Colentina Clinical Hospital, Bucharest, ROU
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3
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Kabanovski A, Donaldson L, Koushan K, Margolin E. CALRETICULIN MUTATION ASSOCIATED WITH BILATERAL CENTRAL RETINAL VEIN OCCLUSION IN A YOUNG WOMAN. Retin Cases Brief Rep 2023; 17:389-391. [PMID: 34652304 DOI: 10.1097/icb.0000000000001200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND Bilateral central retinal vein occlusion (CRVO) is rare and is usually associated with an underlying systemic illness such as hypercoagulable state or systemic inflammatory disease. We present a case of bilateral CRVO in a young patent who was found to have a mutation in the calreticulin gene, which was presumed to be the culprit. METHODS Case report. RESULTS We report a 24-year-old woman with bilateral CRVO. Hypercoagulability work-up was positive for in-frame deletion in exon 9 of the calreticulin gene. CONCLUSION We suggest that all young patients presenting with CRVO or any patient with bilateral CRVO have genetic testing for a limited set of known, prothrombotic mutations including the recently identified calreticulin gene.
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Affiliation(s)
- Anna Kabanovski
- Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Laura Donaldson
- Department of Ophthalmology and Vision Science, University of Toronto, Toronto, Ontario, Canada ; and
| | - Keyvan Koushan
- Department of Ophthalmology and Vision Science, University of Toronto, Toronto, Ontario, Canada ; and
| | - Edward Margolin
- Department of Ophthalmology and Vision Science, University of Toronto, Toronto, Ontario, Canada ; and
- Division of Neurology, Department of Medicine, University of Toronto, Toronto, Ontario, Canada
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Chia YC, Siti Asmaa MJ, Ramli M, Woon PY, Johan MF, Hassan R, Islam MA. Molecular Genetics of Thrombotic Myeloproliferative Neoplasms: Implications in Precision Oncology. Diagnostics (Basel) 2023; 13:163. [PMID: 36611455 PMCID: PMC9818412 DOI: 10.3390/diagnostics13010163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 11/24/2022] [Accepted: 11/28/2022] [Indexed: 01/06/2023] Open
Abstract
Classical BCR-ABL-negative myeloproliferative neoplasms (MPN) include polycythaemia vera, essential thrombocythaemia, and primary myelofibrosis. Unlike monogenic disorders, a more complicated series of genetic mutations are believed to be responsible for MPN with various degrees of thromboembolic and bleeding complications. Thrombosis is one of the early manifestations in patients with MPN. To date, the driver genes responsible for MPN include JAK2, CALR, MPL, TET2, ASXL1, and MTHFR. Affords have been done to elucidate these mutations and the incidence of thromboembolic events. Several lines of evidence indicate that mutations in JAK2, MPL, TET2 and ASXL1 gene and polymorphisms in several clotting factors (GPIa, GPIIa, and GPIIIa) are associated with the occurrence and prevalence of thrombosis in MPN patients. Some polymorphisms within XRCC1, FBG, F2, F5, F7, F12, MMP9, HPA5, MTHFR, SDF-1, FAS, FASL, TERT, ACE, and TLR4 genes may also play a role in MPN manifestation. This review aims to provide an insightful overview on the genetic perspective of thrombotic complications in patients with MPN.
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Affiliation(s)
- Yuh Cai Chia
- Department Haematology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian 16150, Kelantan, Malaysia
| | - Mat Jusoh Siti Asmaa
- School of Health Sciences, Universiti Sains Malaysia, Kubang Kerian 16150, Kelantan, Malaysia
| | - Marini Ramli
- Department Haematology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian 16150, Kelantan, Malaysia
| | - Peng Yeong Woon
- Department of Molecular Biology and Human Genetics, Tzu Chi University, Hualien 97004, Taiwan
| | - Muhammad Farid Johan
- Department Haematology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian 16150, Kelantan, Malaysia
| | - Rosline Hassan
- Department Haematology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian 16150, Kelantan, Malaysia
| | - Md Asiful Islam
- Department Haematology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian 16150, Kelantan, Malaysia
- Institute of Metabolism and Systems Research, University of Birmingham, Birmingham B15 2TT, UK
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Donaldson L, Muir RT, Schaafsma JD, Margolin E. Clinical Reasoning: A 65-Year-Old Woman With New Headache, Pulsatile Tinnitus, and Visual Disturbances. Neurology 2021; 97:1039-1044. [PMID: 34326182 DOI: 10.1212/wnl.0000000000012575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- Laura Donaldson
- University of Toronto, Department of Ophthalmology and Vision Sciences, Toronto, Ontario, Canada
| | - Ryan T Muir
- University of Toronto, Department of Medicine, Division of Neurology, Toronto, Ontario, Canada
| | - Joanna D Schaafsma
- University of Toronto, Department of Medicine, Division of Neurology, Toronto, Ontario, Canada
| | - Edward Margolin
- University of Toronto, Department of Ophthalmology and Vision Sciences, Toronto, Ontario, Canada .,University of Toronto, Department of Medicine, Division of Neurology, Toronto, Ontario, Canada
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Mazzeo C, Quan M, Wong H, Castiglione M, Kaushansky K, Zhan H. JAK2V617F mutant endothelial cells promote neoplastic hematopoiesis in a mixed vascular microenvironment. Blood Cells Mol Dis 2021; 90:102585. [PMID: 34139651 DOI: 10.1016/j.bcmd.2021.102585] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 05/24/2021] [Accepted: 05/24/2021] [Indexed: 11/19/2022]
Abstract
The chronic myeloproliferative neoplasms (MPNs) are clonal stem cell disorders. The hematopoietic stem/progenitor cell (HSPC) compartment in patients with MPNs is heterogeneous with the presence of both wild-type and JAK2V617F mutant cells. Mechanisms responsible for mutant stem cell expansion in MPNs are not fully understood. Vascular endothelial cells (ECs) are an essential component of the hematopoietic microenvironment. ECs carrying the JAK2V617F mutation can be detected in patients with MPNs. Utilizing an ex vivo EC-HSPC co-culture system with mixed wild-type and JAK2V617F mutant ECs, we show that even small numbers of JAK2V617F mutant ECs can promote the expansion of JAK2V617F mutant HSPCs in preference to wild-type HSPCs during irradiation or cytotoxic chemotherapy, the two treatments commonly used in the conditioning regimen for stem cell transplantation, the only curative treatment for patients with MPNs. Mechanistically, we found that both cell-cell interactions and secreted factors are important for JAK2V617F mutant EC-mediated neoplastic hematopoiesis. Further understanding of how the JAK2V617F mutation alters vascular niche function will help identify new strategies to not only control neoplastic cell expansion but also prevent disease relapse in patients with MPNs.
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Affiliation(s)
| | - Moqing Quan
- Massachusetts General Hospital, Boston, MA, USA
| | - Helen Wong
- New York Institute of Technology College of Osteopathic Medicine, Glen Head, NY, USA
| | | | - Kenneth Kaushansky
- Office of the Sr. Vice President, Health Sciences, Stony Brook School of Medicine, Stony Brook, NY, USA
| | - Huichun Zhan
- Department of Medicine, Stony Brook School of Medicine, Stony Brook, NY, USA; Medical Service, Northport VA Medical Center, Northport, NY, USA.
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7
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The pathobiology of thrombosis, microvascular disease, and hemorrhage in the myeloproliferative neoplasms. Blood 2021; 137:2152-2160. [PMID: 33649757 DOI: 10.1182/blood.2020008109] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 01/11/2021] [Indexed: 12/19/2022] Open
Abstract
Thrombotic, vascular, and bleeding complications are the most common causes of morbidity and mortality in the Philadelphia chromosome-negative myeloproliferative neoplasms (MPNs). In these disorders, circulating red cells, leukocytes, and platelets, as well as some vascular endothelial cells, each have abnormalities that are cell-intrinsic to the MPN driver mutations they harbor (eg, JAK2 V617F). When these cells are activated in the MPNs, their interactions with each other create a highly proadhesive and prothrombotic milieu in the circulation that predisposes patients with MPN to venous, arterial, and microvascular thrombosis and occlusive disease. Bleeding problems in the MPNs are caused by the MPN blood cell-initiated development of acquired von Willebrand disease. The inflammatory state created by MPN stem cells in their microenvironment extends systemically to amplify the clinical thrombotic tendency and, at the same time, preferentially promote further MPN stem cell clonal expansion, thereby generating a vicious cycle that favors a prothrombotic state in these diseases.
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Chia YC, Ramli M, Woon PY, Johan MF, Hassan R, Islam MA. WITHDRAWN: Molecular genetics of thrombotic myeloproliferative neoplasms: Implications in precision oncology. Genes Dis 2021. [DOI: 10.1016/j.gendis.2021.01.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
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Gutwein O, Lavi N, Barzilai M, Shacham-Abulafia A, Leader A, Chubar E, Dally N, Shapira S, Mishchenko E, Ellis M, Koren-Michowitz M. Management and Outcome of Venous Thrombosis in Patients with Myeloproliferative Neoplasms: Data from the Israeli MPN Working Group. Acta Haematol 2020; 144:438-445. [PMID: 33316809 DOI: 10.1159/000511426] [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: 02/06/2020] [Accepted: 09/08/2020] [Indexed: 11/19/2022]
Abstract
The BCR-ABL-negative myeloproliferative neoplasms (MPN) are associated with high incidence of venous thrombosis and a significant rate of recurrent events, but there is no consensus regarding their management. In this retrospective study, we analyzed 96 patients with MPN-related venous thrombosis. The index venous thrombosis occurred at a median age of 58 years (IQR 37-71), with 58% of the events involving unusual sites. Patients who were on antiplatelet agents at the time of index thrombosis tended to be older than patients who were not receiving antiplatelets at the time of index thrombosis. The majority of index thromboses occurring after the diagnosis of MPN had uncontrolled blood counts at the time of event and were not receiving antithrombotic agents. Following the thrombotic episode, 75% of patients received long-term anticoagulation. At a median follow-up of 3.4 years, the recurrence rate was 14%. Thrombophilia was significantly more prevalent among patients with recurrent thrombosis compared to patients without recurrence (p < 0.01). Patients who developed a recurrent event early were more likely to have thrombophilia (either inherited or antiphospholipid antibodies), and controlled blood counts, and were likely to receive anticoagulation at the time of recurrence compared to patients with later recurrences. Thrombophilia may contribute to venous thrombosis recurrence, especially early after the index venous thrombosis. Suboptimal anticoagulation and blood count control are factors associated with late venous thrombosis recurrence.
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Affiliation(s)
- Odit Gutwein
- Department of Hematology, Shamir Medical Center (Assaf Harofeh), Zerifin, Israel,
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel,
| | - Noa Lavi
- Division of Hematology, Rambam Medical Center, Haifa, Israel
- Rappaport Faculty of Medicine, Technion, Haifa, Israel
| | - Merav Barzilai
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Division of Hematology, Sourasky Medical Center, Tel Aviv, Israel
| | - Adi Shacham-Abulafia
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Institute of Hematology, Davidoff Cancer Centre, Beilinson Hospital, Rabin Medical Center, Petah-Tiqva, Israel
| | - Avi Leader
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Institute of Hematology, Davidoff Cancer Centre, Beilinson Hospital, Rabin Medical Center, Petah-Tiqva, Israel
| | - Evgeni Chubar
- Hematology Unit, HaEmek Medical Center, Afula, Israel
| | - Najib Dally
- Division of Hematology, Ziv Medical Center, Safed, Israel
- Faculty of Medicine in the Galilee, Bar-Ilan University, Safed, Israel
| | - Shirley Shapira
- Hematology Institute, Meir Medical Center, Kfar Saba, Israel
| | - Elena Mishchenko
- Institute of Hematology, Lady Davis Carmel Medical Center, Haifa, Israel
| | - Martin Ellis
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Hematology Institute, Meir Medical Center, Kfar Saba, Israel
| | - Maya Koren-Michowitz
- Department of Hematology, Shamir Medical Center (Assaf Harofeh), Zerifin, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
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Matsuura S, Thompson CR, Belghasem ME, Bekendam RH, Piasecki A, Leiva O, Ray A, Italiano J, Yang M, Merill-Skoloff G, Chitalia VC, Flaumenhaft R, Ravid K. Platelet Dysfunction and Thrombosis in JAK2 V617F-Mutated Primary Myelofibrotic Mice. Arterioscler Thromb Vasc Biol 2020; 40:e262-e272. [PMID: 32814440 DOI: 10.1161/atvbaha.120.314760] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
OBJECTIVE The risk of thrombosis in myeloproliferative neoplasms, such as primary myelofibrosis varies depending on the type of key driving mutation (JAK2 [janus kinase 2], CALR [calreticulin], and MPL [myeloproliferative leukemia protein or thrombopoietin receptor]) and the accompanying mutations in other genes. In the current study, we sought to examine the propensity for thrombosis, as well as platelet activation properties in a mouse model of primary myelofibrosis induced by JAK2V617F (janus kinase 2 with valine to phenylalanine substitution on codon 617) mutation. Approach and Results: Vav1-hJAK2V617F transgenic mice show hallmarks of primary myelofibrosis, including significant megakaryocytosis and bone marrow fibrosis, with a moderate increase in red blood cells and platelet number. This mouse model was used to study responses to 2 models of vascular injury and to investigate platelet properties. Platelets derived from the mutated mice have reduced aggregation in response to collagen, reduced thrombus formation and thrombus size, as demonstrated using laser-induced or FeCl3-induced vascular injury models, and increased bleeding time. Strikingly, the mutated platelets had a significantly reduced number of dense granules, which could explain impaired ADP secretion upon platelet activation, and a diminished second wave of activation. CONCLUSIONS Together, our study highlights for the first time the influence of a hyperactive JAK2 on platelet activation-induced ADP secretion and dense granule homeostasis, with consequent effects on platelet activation properties.
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Affiliation(s)
- Shinobu Matsuura
- Department of Medicine and Whitaker Cardiovascular Institute (S.M., C.R.T., A.P., O.L., K.R.), Boston University School of Medicine, MA
| | - Cristal R Thompson
- Department of Medicine and Whitaker Cardiovascular Institute (S.M., C.R.T., A.P., O.L., K.R.), Boston University School of Medicine, MA
| | | | - Roelof H Bekendam
- Department of Medicine (R.H.B.), Boston University School of Medicine, MA
| | - Andrew Piasecki
- Department of Medicine and Whitaker Cardiovascular Institute (S.M., C.R.T., A.P., O.L., K.R.), Boston University School of Medicine, MA
| | - Orly Leiva
- Department of Medicine and Whitaker Cardiovascular Institute (S.M., C.R.T., A.P., O.L., K.R.), Boston University School of Medicine, MA
| | - Anjana Ray
- Department of Medicine, Brigham and Women's Hospital, Boston MA (A.R., J.I.)
| | - Joseph Italiano
- Department of Medicine, Brigham and Women's Hospital, Boston MA (A.R., J.I.)
| | - Moua Yang
- Division of Hemostasis and Thrombosis, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA (M.Y., G.M.-S., R.F.)
| | - Glenn Merill-Skoloff
- Division of Hemostasis and Thrombosis, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA (M.Y., G.M.-S., R.F.)
| | - Vipul C Chitalia
- Renal Section, Department of Medicine (V.C.C.), Boston University School of Medicine, MA
| | - Robert Flaumenhaft
- Division of Hemostasis and Thrombosis, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA (M.Y., G.M.-S., R.F.)
| | - Katya Ravid
- Department of Medicine and Whitaker Cardiovascular Institute (S.M., C.R.T., A.P., O.L., K.R.), Boston University School of Medicine, MA
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11
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Lee MW, Ryu H, Choi YS, Song IC, Lee HJ, Yun HJ, Sun BJ, Jeong JO, Jo DY. Pulmonary hypertension in patients with Philadelphia-negative myeloproliferative neoplasms: a single-center retrospective analysis of 225 patients. Blood Res 2020; 55:77-84. [PMID: 32429621 PMCID: PMC7343546 DOI: 10.5045/br.2020.2020001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2020] [Revised: 03/16/2020] [Accepted: 04/16/2020] [Indexed: 12/17/2022] Open
Abstract
Background The prevalence of pulmonary hypertension (PH) in myeloproliferative neoplasms (MPNs) varies among studies. We analyzed the prevalence of PH in Korean patients with Philadelphia-negative (Ph-) MPNs. Methods Medical records of patients with Ph- MPNs [essential thrombocythemia (ET), polycythemia vera (PV), or primary myelofibrosis (PMF)] visiting a single hospital between 1993 and 2019 were reviewed retrospectively. Transthoracic echocardiographic examination (TTE) results were reviewed and PH was diagnosed according to established guidelines. Results Of the 320 MPN (179 ET, 107 PV, and 34 PMF) patients, 225 (121 ET, 83 PV, and 21 PMF) underwent TTE. Of these 225 MPN patients, 19 of 121 (15.7%) ET, 9 of 83 (10.8%) PV, and 6 of 21 (28.6%) PMF patients had PH. PV patients with PH were older [71 (42‒85) vs. 61.5 (26‒91) yr, respectively; P=0.049], predominantly female (male:female ratio, 0.29 vs. 1.96, respectively; P=0.010), had lower hemoglobin levels (15.9±2.6 g/dL vs. 18.4±2.6 g/dL, respectively; P=0.010), and higher platelet counts (616.6±284.2×109/L vs. 437.7±191.7×109/L, respectively; P=0.020) than PV patients without PH. PMF patients with PH had higher monocyte counts (1.3±0.5×109/L vs. 0.8±0.4×109/L, respectively; P=0.031) than those without PH. PH was a risk factor for poor survival in PV (HR, 12.4; 95% CI, 1.8‒86.6). Conclusion PH is common in patients with Ph- MPNs and hence, careful screening for PH is warranted.
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Affiliation(s)
- Myeong-Won Lee
- Division of Hematology/Oncology, Department of Internal Medicine, College of Medicine, Chungnam National University, Daejeon, Korea
| | - Hyewon Ryu
- Division of Hematology/Oncology, Department of Internal Medicine, College of Medicine, Chungnam National University, Daejeon, Korea
| | - Yoon-Seok Choi
- Division of Hematology/Oncology, Department of Internal Medicine, College of Medicine, Chungnam National University, Daejeon, Korea
| | - Ik-Chan Song
- Division of Hematology/Oncology, Department of Internal Medicine, College of Medicine, Chungnam National University, Daejeon, Korea
| | - Hyo-Jin Lee
- Division of Hematology/Oncology, Department of Internal Medicine, College of Medicine, Chungnam National University, Daejeon, Korea
| | - Hwan-Jung Yun
- Division of Hematology/Oncology, Department of Internal Medicine, College of Medicine, Chungnam National University, Daejeon, Korea
| | - Byung Joo Sun
- Division of Cardiology, Department of Internal Medicine, College of Medicine, Chungnam National University, Daejeon, Korea
| | - Jin-Ok Jeong
- Division of Cardiology, Department of Internal Medicine, College of Medicine, Chungnam National University, Daejeon, Korea
| | - Deog-Yeon Jo
- Division of Hematology/Oncology, Department of Internal Medicine, College of Medicine, Chungnam National University, Daejeon, Korea
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Guo C, Li Z. Bioinformatics Analysis of Key Genes and Pathways Associated with Thrombosis in Essential Thrombocythemia. Med Sci Monit 2019; 25:9262-9271. [PMID: 31801935 PMCID: PMC6911306 DOI: 10.12659/msm.918719] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Background Essential thrombocythemia (ET) is a form of chronic myeloproliferative neoplasm (MPN), and thrombosis is an important complication. This study aimed to use bioinformatics analysis to identify differentially expressed genes (DEGs) in ET associated thrombosis. Material/Methods Two datasets were identified from the Gene Expression Omnibus (GEO) database to investigate the expression profiles in ET. The GSE103176 dataset included 24 patients with ET and 15 healthy individuals with samples from CD34+ bone marrow cells. The GSE54644 dataset included 47 patients with ET and 11 healthy individuals with samples from peripheral neutrophils. GEO2R was used to screen DEGs, followed by over-representation analysis. Protein–protein interaction (PPI) network analysis and module analysis were performed using the STRING database and Cytoscape software. Hub genes were identified using the cytoHubba Cytoscape plugin, and maximal clique centrality (MCC) was identified. The MCODE Cytoscape plugin was used to identify network clusters, or highly interconnected regions. Results There were 586 and 392 DEGs identified from the GSE103176 and GSE54644 datasets, respectively. The upregulated DEGs for CD34+ cells were predominantly enriched for granulocyte activation or related pathways for biological process (BP), and secretory vesicle for the cellular component (CC). The top hub genes within CD34+ cells included CXCL1, CAMP, HP, MMP8, PTX3, ORM1, LYZ, LTF, PGLYRP1, and OLFM4. Conclusions Bioinformatics analysis identified DEGs and hub genes that interacted with CD34+ cells and neutrophils that may predict an increased risk of thrombosis in patients with ET. These preliminary findings should be validated using next-generation sequencing (NGS) and clinical studies.
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Affiliation(s)
- Chao Guo
- Department of Hematology, China-Japan Friendship Hospital, Beijing, China (mainland)
| | - Zhenling Li
- Department of Hematology, China-Japan Friendship Hospital, Beijing, China (mainland)
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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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Oh ST. Neutralize the neutrophils! Neutrophil β1/β2 integrin activation contributes to JAK2-V617F-driven thrombosis. J Clin Invest 2018; 128:4248-4250. [PMID: 30148454 DOI: 10.1172/jci123388] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
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