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Yang S, Wang L, Wu Y, Wu A, Huang F, Tang X, Kantawong F, Anuchapreeda S, Qin D, Mei Q, Chen J, Huang X, Zhang C, Wu J. Apoptosis in megakaryocytes: Safeguard and threat for thrombopoiesis. Front Immunol 2023; 13:1025945. [PMID: 36685543 PMCID: PMC9845629 DOI: 10.3389/fimmu.2022.1025945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Accepted: 12/09/2022] [Indexed: 01/06/2023] Open
Abstract
Platelets, generated from precursor megakaryocytes (MKs), are central mediators of hemostasis and thrombosis. The process of thrombopoiesis is extremely complex, regulated by multiple factors, and related to many cellular events including apoptosis. However, the role of apoptosis in thrombopoiesis has been controversial for many years. Some researchers believe that apoptosis is an ally of thrombopoiesis and platelets production is apoptosis-dependent, while others have suggested that apoptosis is dispensable for thrombopoiesis, and is even inhibited during this process. In this review, we will focus on this conflict, discuss the relationship between megakaryocytopoiesis, thrombopoiesis and apoptosis. In addition, we also consider why such a vast number of studies draw opposite conclusions of the role of apoptosis in thrombopoiesis, and try to figure out the truth behind the mystery. This review provides more comprehensive insights into the relationship between megakaryocytopoiesis, thrombopoiesis, and apoptosis and finds some clues for the possible pathological mechanisms of platelet disorders caused by abnormal apoptosis.
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Affiliation(s)
- Shuo Yang
- School of Pharmacy, Southwest Medical University, Luzhou, China
| | - Long Wang
- School of Pharmacy, Southwest Medical University, Luzhou, China
| | - Yuesong Wu
- School of Pharmacy, Southwest Medical University, Luzhou, China
| | - Anguo Wu
- School of Pharmacy, Southwest Medical University, Luzhou, China
- Institute of Cardiovascular Research, the Key Laboratory of Medical Electrophysiology, Ministry of Education of China, Medical Key Laboratory for Drug Discovery and Druggability Evaluation of Sichuan Province, Luzhou Key Laboratory of Activity Screening and Druggability Evaluation for Chinese Materia Medica, Luzhou, China
| | - Feihong Huang
- School of Pharmacy, Southwest Medical University, Luzhou, China
- Institute of Cardiovascular Research, the Key Laboratory of Medical Electrophysiology, Ministry of Education of China, Medical Key Laboratory for Drug Discovery and Druggability Evaluation of Sichuan Province, Luzhou Key Laboratory of Activity Screening and Druggability Evaluation for Chinese Materia Medica, Luzhou, China
| | - Xiaoqin Tang
- School of Pharmacy, Southwest Medical University, Luzhou, China
| | - Fahsai Kantawong
- Department of Medical Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, Thailand
| | - Songyot Anuchapreeda
- Department of Medical Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, Thailand
| | - Dalian Qin
- School of Pharmacy, Southwest Medical University, Luzhou, China
| | - Qibing Mei
- School of Pharmacy, Southwest Medical University, Luzhou, China
- School of Chinese Medicine, The University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Jianping Chen
- School of Chinese Medicine, The University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Xinwu Huang
- School of Pharmacy, Southwest Medical University, Luzhou, China
| | - Chunxiang Zhang
- Institute of Cardiovascular Research, the Key Laboratory of Medical Electrophysiology, Ministry of Education of China, Medical Key Laboratory for Drug Discovery and Druggability Evaluation of Sichuan Province, Luzhou Key Laboratory of Activity Screening and Druggability Evaluation for Chinese Materia Medica, Luzhou, China
| | - Jianming Wu
- School of Pharmacy, Southwest Medical University, Luzhou, China
- Institute of Cardiovascular Research, the Key Laboratory of Medical Electrophysiology, Ministry of Education of China, Medical Key Laboratory for Drug Discovery and Druggability Evaluation of Sichuan Province, Luzhou Key Laboratory of Activity Screening and Druggability Evaluation for Chinese Materia Medica, Luzhou, China
- School of Basic Medical Sciences, Southwest Medical University, Luzhou, China
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Vauclard A, Bellio M, Valet C, Borret M, Payrastre B, Severin S. Obesity: Effects on bone marrow homeostasis and platelet activation. Thromb Res 2022. [DOI: 10.1016/j.thromres.2022.10.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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3
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Zhang Z, Wu X, Zhou M, Qi J, Zhang R, Li X, Wang C, Ruan C, Han Y. Plasma Metabolomics Identifies the Dysregulated Metabolic Profile of Primary Immune Thrombocytopenia (ITP) Based on GC-MS. Front Pharmacol 2022; 13:845275. [PMID: 35685646 PMCID: PMC9170960 DOI: 10.3389/fphar.2022.845275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Accepted: 05/06/2022] [Indexed: 12/04/2022] Open
Abstract
ITP is a common autoimmune bleeding disorder with elusive pathogenesis. Our study was implemented to profile the plasma metabolic alterations of patients diagnosed with ITP, aiming at exploring the potential novel biomarkers and partial mechanism of ITP. The metabolomic analysis of plasma samples was conducted using GC-MS on 98 ITP patients and 30 healthy controls (HCs). Age and gender matched samples were selected to enter the training set or test set respectively. OPLS-DA, t-test with FDR correction and ROC analyses were employed to screen out and evaluate the differential metabolites. Possible pathways were enriched based on metabolomics pathway analysis (MetPA). A total of 85 metabolites were investigated in our study and 17 differential metabolites with diagnostic potential were identified between ITP patients and HCs. MetPA showed that the metabolic disorders of ITP patients were mainly related to phenylalanine, tyrosine and tryptophan biosynthesis, phenylalanine metabolism and glyoxylate and dicarboxylate metabolism. Additionally, we discriminated 6 differential metabolites and 5 enriched pathways in predicting the resistance to glucocorticoids in chronic ITP patients. The distinct metabolites discovered in our study could become novel biomarkers for the auxiliary diagnosis and prognosis prediction of ITP. Besides, the dysregulated pathways might contribute to the development of ITP.
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Affiliation(s)
- Ziyan Zhang
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China
- Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
| | - Xiaojin Wu
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China
- Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
- Key Laboratory of Thrombosis and Hemostasis of Ministry of Health, Suzhou, China
| | - Meng Zhou
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China
- Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
| | - Jiaqian Qi
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China
- Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
| | - Rui Zhang
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China
- Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
| | - Xueqian Li
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China
- Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
| | - Chang Wang
- State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou, China
| | - Changgeng Ruan
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China
- Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
- Key Laboratory of Thrombosis and Hemostasis of Ministry of Health, Suzhou, China
- State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou, China
| | - Yue Han
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China
- Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
- Key Laboratory of Thrombosis and Hemostasis of Ministry of Health, Suzhou, China
- State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou, China
- *Correspondence: Yue Han,
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Kaur J, Rawat Y, Sood V, Periwal N, Rathore DK, Kumar S, Kumar N, Bhattacharyya S. Replication of Dengue Virus in K562-Megakaryocytes Induces Suppression in the Accumulation of Reactive Oxygen Species. Front Microbiol 2022; 12:784070. [PMID: 35087488 PMCID: PMC8787197 DOI: 10.3389/fmicb.2021.784070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 12/07/2021] [Indexed: 11/13/2022] Open
Abstract
Dengue virus can infect human megakaryocytes leading to decreased platelet biogenesis. In this article, we report a study of Dengue replication in human K562 cells undergoing PMA-induced differentiation into megakaryocytes. PMA-induced differentiation in these cells recapitulates steps of megakaryopoiesis including gene activation, expression of CD41/61 and CD61 platelet surface markers and accumulation of intracellular reactive oxygen species (ROS). Our results show differentiating megakaryocyte cells to support higher viral replication without any apparent increase in virus entry. Further, Dengue replication suppresses the accumulation of ROS in differentiating cells, probably by only augmenting the activity of the transcription factor NFE2L2 without influencing the expression of the coding gene. Interestingly pharmacological modulation of NFE2L2 activity showed a simultaneous but opposite effect on intracellular ROS and virus replication suggesting the former to have an inhibitory effect on the later. Also cells that differentiated while supporting intracellular virus replication showed reduced level of surface markers compared to uninfected differentiated cells.
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Affiliation(s)
- Jaskaran Kaur
- Translational Health Science and Technology Institute, National Capital Region (NCR) Biotech Science Cluster, Faridabad, India
| | - Yogita Rawat
- Translational Health Science and Technology Institute, National Capital Region (NCR) Biotech Science Cluster, Faridabad, India
| | - Vikas Sood
- Department of Biochemistry, School of Chemical and Life Sciences, Jamia Hamdard (Hamdard University), New Delhi, India
| | - Neha Periwal
- Department of Biochemistry, School of Chemical and Life Sciences, Jamia Hamdard (Hamdard University), New Delhi, India
| | - Deepak Kumar Rathore
- Translational Health Science and Technology Institute, National Capital Region (NCR) Biotech Science Cluster, Faridabad, India
| | - Shrikant Kumar
- Translational Health Science and Technology Institute, National Capital Region (NCR) Biotech Science Cluster, Faridabad, India
| | - Niraj Kumar
- Translational Health Science and Technology Institute, National Capital Region (NCR) Biotech Science Cluster, Faridabad, India
| | - Sankar Bhattacharyya
- Translational Health Science and Technology Institute, National Capital Region (NCR) Biotech Science Cluster, Faridabad, India
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Adipocyte Fatty Acid Transfer Supports Megakaryocyte Maturation. Cell Rep 2021; 32:107875. [PMID: 32640240 DOI: 10.1016/j.celrep.2020.107875] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 02/21/2020] [Accepted: 06/15/2020] [Indexed: 01/12/2023] Open
Abstract
Megakaryocytes (MKs) come from a complex process of hematopoietic progenitor maturation within the bone marrow that gives rise to de novo circulating platelets. Bone marrow microenvironment contains a large number of adipocytes with a still ill-defined role. This study aims to analyze the influence of adipocytes and increased medullar adiposity in megakaryopoiesis. An in vivo increased medullar adiposity in mice caused by high-fat-diet-induced obesity is associated to an enhanced MK maturation and proplatelet formation. In vitro co-culture of adipocytes with bone marrow hematopoietic progenitors shows that delipidation of adipocytes directly supports MK maturation by enhancing polyploidization, amplifying the demarcation membrane system, and accelerating proplatelet formation. This direct crosstalk between adipocytes and MKs occurs through adipocyte fatty acid transfer to MKs involving CD36 to reinforce megakaryocytic maturation. Thus, these findings unveil an influence of adiposity on MK homeostasis based on a dialogue between adipocytes and MKs.
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Affiliation(s)
- Ishac Nazy
- Department of Medicine, McMaster University, Hamilton, Ontario, Canada
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Ontario, Canada
- Centre for Transfusion Research, McMaster University, Hamilton, Ontario, Canada
| | - Donald M Arnold
- Department of Medicine, McMaster University, Hamilton, Ontario, Canada
- Centre for Transfusion Research, McMaster University, Hamilton, Ontario, Canada
| | - Gregory R Steinberg
- Department of Medicine, McMaster University, Hamilton, Ontario, Canada.
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Ontario, Canada.
- Centre for Metabolism, Obesity and Diabetes Research, McMaster University, Hamilton, Ontario, Canada.
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Recent advances in understanding the role of high fat diets and their components on hematopoiesis and the hematopoietic stem cell niche. Curr Opin Food Sci 2020. [DOI: 10.1016/j.cofs.2020.11.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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8
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Ingavle G, Shabrani N, Vaidya A, Kale V. Mimicking megakaryopoiesis in vitro using biomaterials: Recent advances and future opportunities. Acta Biomater 2019; 96:99-110. [PMID: 31319203 DOI: 10.1016/j.actbio.2019.07.025] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2019] [Revised: 07/02/2019] [Accepted: 07/12/2019] [Indexed: 12/24/2022]
Abstract
Presently donor-derived platelets used in the clinic are associated with concerns about adequate availability, expense, risk of bacterial contamination and complications due to immunological reaction. To prevail over our dependence on transfusion of donor-derived platelets, efforts are being made to generate them in vitro. Development of biomaterials that support or mimic bone marrow niche micro-environmental cues could improve the in vitro production of platelets from megakaryocytes (MKs) derived from various stem cell sources. In spite of significant advances in the production of MKs from various stem cell sources using 2D as well as 3D culture approaches in vitro and the development of biomaterials-based platelet systems, yield and quality of these platelets remains unsuitable for clinical use. Thus, in vitro production of clinically useful platelets on a large scale remains an unmet target to date. This review summarizes the most frequently used 2D and 3D approaches to generate MKs and platelets in vitro, emphasizing the importance of mimicking in vivo micro-environment. Further, this review proposes the use of interpenetrating network (IPN) biomaterial-based approach as a promising strategy for improving the generation of MK and platelets in sufficient numbers in vitro. STATEMENT OF SIGNIFICANCE: Thrombocytopenia is one of the major global health and socio-economic problems. Transfusion with donor-derived platelets (PLTs) is the only effective treatment for this condition. However, this approach is limited by factors like short shelf-life of PLTs, PLT activation, alloimmunization, risk of bacterial contamination, infection etc. In vitro generated MKs and PLTs derived from non-donor-dependent sources may help to overcome the platelet transfusion concerns. Here we have reviewed various 2D and 3D strategies used for in vitro generation of MKs and PLTs, with special emphasis on various biomaterial platforms and different physico/chemical cues being used for the purpose. We have also proposed a biomaterial-based approach of using interpenetrating network (IPN) for generating clinically relevant numbers of MKs and PLTs.
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Lipoprotein lipase regulates hematopoietic stem progenitor cell maintenance through DHA supply. Nat Commun 2018; 9:1310. [PMID: 29615667 PMCID: PMC5882990 DOI: 10.1038/s41467-018-03775-y] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Accepted: 03/07/2018] [Indexed: 01/15/2023] Open
Abstract
Lipoprotein lipase (LPL) mediates hydrolysis of triglycerides (TGs) to supply free fatty acids (FFAs) to tissues. Here, we show that LPL activity is also required for hematopoietic stem progenitor cell (HSPC) maintenance. Knockout of Lpl or its obligatory cofactor Apoc2 results in significantly reduced HSPC expansion during definitive hematopoiesis in zebrafish. A human APOC2 mimetic peptide or the human very low-density lipoprotein, which carries APOC2, rescues the phenotype in apoc2 but not in lpl mutant zebrafish. Creating parabiotic apoc2 and lpl mutant zebrafish rescues the hematopoietic defect in both. Docosahexaenoic acid (DHA) is identified as an important factor in HSPC expansion. FFA-DHA, but not TG-DHA, rescues the HSPC defects in apoc2 and lpl mutant zebrafish. Reduced blood cell counts are also observed in Apoc2 mutant mice at the time of weaning. These results indicate that LPL-mediated release of the essential fatty acid DHA regulates HSPC expansion and definitive hematopoiesis.
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Limbkar K, Dhenge A, Jadhav DD, Thulasiram HV, Kale V, Limaye L. Oral feeding with polyunsaturated fatty acids fosters hematopoiesis and thrombopoiesis in healthy and bone marrow-transplanted mice. J Nutr Biochem 2017; 47:94-105. [PMID: 28570944 DOI: 10.1016/j.jnutbio.2017.05.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Revised: 05/04/2017] [Accepted: 05/04/2017] [Indexed: 12/13/2022]
Abstract
Hematopoietic stem cells play the vital role of maintaining appropriate levels of cells in blood. Therefore, regulation of their fate is essential for their effective therapeutic use. Here we report the role of polyunsaturated fatty acids (PUFAs) in regulating hematopoiesis which has not been explored well so far. Mice were fed daily for 10 days with n-6/n-3 PUFAs, viz. linoleic acid (LA), arachidonic acid (AA), alpha-linolenic acid and docosahexanoic acid (DHA) in four separate test groups with phosphate-buffered saline fed mice as control set. The bone marrow cells of PUFA-fed mice showed a significantly higher hematopoiesis as assessed using side population, Lin-Sca-1+ckit+, colony-forming unit (CFU), long-term culture, CFU-spleen assay and engraftment potential as compared to the control set. Thrombopoiesis was also stimulated in PUFA-fed mice. A combination of DHA and AA was found to be more effective than when either was fed individually. Higher incorporation of PUFAs as well as products of their metabolism was observed in the bone marrow cells of PUFA-fed mice. A stimulation of the Wnt, CXCR4 and Notch1 pathways was observed in PUFA-fed mice. The clinical relevance of this study was evident when bone marrow-transplanted recipient mice, which were fed with PUFAs, showed higher engraftment of donor cells, suggesting that the bone marrow microenvironment may also be stimulated by feeding with PUFAs. These data indicate that oral administration of PUFAs in mice stimulates hematopoiesis and thrombopoiesis and could serve as a valuable supplemental therapy in situations of hematopoietic failure.
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MESH Headings
- Animals
- Bone Marrow Cells/cytology
- Bone Marrow Cells/metabolism
- Bone Marrow Transplantation/adverse effects
- Cells, Cultured
- Dietary Supplements/adverse effects
- Fatty Acids, Omega-3/adverse effects
- Fatty Acids, Omega-3/therapeutic use
- Fatty Acids, Omega-6/adverse effects
- Fatty Acids, Omega-6/therapeutic use
- Female
- Gene Expression Regulation
- Graft Survival
- Hematinics/therapeutic use
- Hematopoiesis
- Mice, Congenic
- Mice, Inbred C57BL
- Receptor, Notch1/agonists
- Receptor, Notch1/genetics
- Receptor, Notch1/metabolism
- Receptors, CXCR4/agonists
- Receptors, CXCR4/genetics
- Receptors, CXCR4/metabolism
- Thrombopoiesis
- Transplantation Conditioning/adverse effects
- Up-Regulation
- Wnt Proteins/agonists
- Wnt Proteins/genetics
- Wnt Proteins/metabolism
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Affiliation(s)
- Kedar Limbkar
- National Centre for Cell Science, NCCS Complex, Savitribai Phule Pune University Campus, Pune 411007, India
| | - Ankita Dhenge
- National Centre for Cell Science, NCCS Complex, Savitribai Phule Pune University Campus, Pune 411007, India
| | - Dipesh D Jadhav
- Chemical Biology Unit, Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
| | - Hirekodathakallu V Thulasiram
- Chemical Biology Unit, Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India; CSIR-Institute of Genomics and Integrative Biology, Mall Road, New Delhi 110007, India
| | - Vaijayanti Kale
- National Centre for Cell Science, NCCS Complex, Savitribai Phule Pune University Campus, Pune 411007, India
| | - Lalita Limaye
- National Centre for Cell Science, NCCS Complex, Savitribai Phule Pune University Campus, Pune 411007, India.
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Dhenge A, Limbkar K, Melinkeri S, Kale VP, Limaye L. Arachidonic acid and Docosahexanoic acid enhance platelet formation from human apheresis-derived CD34 + cells. Cell Cycle 2017; 16:979-990. [PMID: 28388313 DOI: 10.1080/15384101.2017.1312233] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Abstract
An Aberration in megakaryopoiesis and thrombopoiesis, 2 important processes that maintain hemostasis, leads to thrombocytopenia. Though platelet transfusions are used to treat this condition, blood banks frequently face a shortage of platelets. Therefore, methods to generate platelets on a large scale are strongly desirable. However, to generate megakaryocytes (MKs) and platelets (PLTs) in numbers sufficient for clinical application, it is essential to understand the mechanism of platelet production and explore efficient strategies accordingly. We have earlier reported that the N-6 and N-3 poly-unsaturated fatty acids (PUFAs), Arachidonic acid (AA)/Docosahexanoic acid (DHA) have beneficial effect on the generation of MKs and PLTs from umbilical cord blood derived CD34+ cells. Here we tested if a similar effect is observed with peripheral blood derived CD34+ cells, which are more commonly used in transplantation settings. We found a significant enhancement in cell numbers, surface marker expression, cellular ploidy and expression of cytoskeletal components during PLT biogenesis in cultures exposed to media containing AA/DHA than control cultures that were not exposed to these PUFAs. The test cells engrafted more efficiently in NOD/SCID mice than control cells. AA/DHA appears to have enhanced MK/PLT generation through upregulation of the NOTCH and AKT pathways. Our data show that PUFAs could be valuable additives in the culture system for large scale production of platelets for clinical applications.
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Affiliation(s)
- Ankita Dhenge
- a National Centre for Cell Science, NCCS Complex, Savitribai Phule Pune University Campus , Pune , India
| | - Kedar Limbkar
- a National Centre for Cell Science, NCCS Complex, Savitribai Phule Pune University Campus , Pune , India
| | - Sameer Melinkeri
- b Blood and Marrow Transplant Unit, Deenanath Mangeshkar Hospital , Pune , India
| | - Vaijayanti Prakash Kale
- a National Centre for Cell Science, NCCS Complex, Savitribai Phule Pune University Campus , Pune , India
| | - Lalita Limaye
- a National Centre for Cell Science, NCCS Complex, Savitribai Phule Pune University Campus , Pune , India
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Samet I, Villareal MO, Motojima H, Han J, Sayadi S, Isoda H. Olive leaf components apigenin 7-glucoside and luteolin 7-glucoside direct human hematopoietic stem cell differentiation towards erythroid lineage. Differentiation 2015; 89:146-55. [DOI: 10.1016/j.diff.2015.07.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2015] [Revised: 06/07/2015] [Accepted: 07/07/2015] [Indexed: 02/02/2023]
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Pineault N, Boisjoli GJ. Megakaryopoiesis andex vivodifferentiation of stem cells into megakaryocytes and platelets. ACTA ACUST UNITED AC 2015. [DOI: 10.1111/voxs.12155] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- N. Pineault
- Center for Innovation; Canadian Blood Services; Ottawa ON Canada
- Department of Biochemistry, Microbiology and Immunology; University of Ottawa; Ottawa ON Canada
| | - G. J. Boisjoli
- Center for Innovation; Canadian Blood Services; Ottawa ON Canada
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Optimization of the viability of stem cells derived from umbilical cord blood after maternal supplementation with DHA during the second or third trimester of pregnancy: study protocol for a randomized controlled trial. Trials 2014; 15:164. [PMID: 24884585 PMCID: PMC4024184 DOI: 10.1186/1745-6215-15-164] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2013] [Accepted: 04/25/2014] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Umbilical cord blood (UCB) is an important source of hematopoietic stem cells (HSCs). However, the concentration of cells in cord blood units is limited and this may represent the main restriction to their therapeutic clinical use. The percentage of metabolically active stem cells provides a measure of the viability of cells in an UCB sample. It follows that an active cellular metabolism causes a proliferation in stem cells, offering an opportunity to increase the cellular concentration. A high cell dose is essential when transplanting cord stem cells, guaranteeing, in the receiving patient, a successful outcome.This study is designed to evaluate the impact of docosahexaenoic acid (DHA) supplementation in pregnant women, in order to increase the quantity and viability of the cells in UCB samples. METHODS/DESIGN The metabolic demand of DHA increases in the course of pregnancy and reaches maximum absorption during the third trimester of pregnancy. According to these observations, this trial will be divided into two different experimental groups: in the first group, participants will be enrolled from the 20th week of estimated stage of gestation, before the maximum absorption of DHA; while in the second group, enrolment will start from the 28th week of estimated stage of gestation, when the DHA request is higher. Participants in the trial will be divided and randomly assigned to the placebo group or to the experimental group. Each participant will receive a complete set of capsules of either placebo (250 mg of olive oil) or DHA (250 mg), to take one a day from the 20th or from the 28th week, up to the 40th week of estimated gestational age. Samples of venous blood will be taken from all participants before taking placebo or DHA, at the 20th or at the 28th week, and at the 37th to 38th week of pregnancy to monitor the level of DHA. Cell number and cellular viability will be evaluated by flow cytometry within 48 hours of the UCB sample collection. TRIAL REGISTRATION International Standard Randomised Controlled Trial Number Register: ISRCTN58396079. Registration date: 8 October 2013.
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Chen S, Su Y, Wang J. ROS-mediated platelet generation: a microenvironment-dependent manner for megakaryocyte proliferation, differentiation, and maturation. Cell Death Dis 2013; 4:e722. [PMID: 23846224 PMCID: PMC3730424 DOI: 10.1038/cddis.2013.253] [Citation(s) in RCA: 71] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2013] [Revised: 06/03/2013] [Accepted: 06/04/2013] [Indexed: 12/18/2022]
Abstract
Platelets have an important role in the body because of their manifold functions in haemostasis, thrombosis, and inflammation. Platelets are produced by megakaryocytes (MKs) that are differentiated from haematopoietic stem cells via several consecutive stages, including MK lineage commitment, MK progenitor proliferation, MK differentiation and maturation, cell apoptosis, and platelet release. During differentiation, the cells migrate from the osteoblastic niche to the vascular niche in the bone marrow, which is accompanied by reactive oxygen species (ROS)-dependent oxidation state changes in the microenvironment, suggesting that ROS can distinctly influence platelet generation and function in a microenvironment-dependent manner. The objective of this review is to reveal the role of ROS in regulating MK proliferation, differentiation, maturation, and platelet activation, thereby providing new insight into the mechanism of platelet generation, which may lead to the development of new therapeutic agents for thrombocytopenia and/or thrombosis.
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Affiliation(s)
- S Chen
- College of Preventive Medicine, State Key Laboratory of Trauma and Burns and Combined Injury, Third Military Medical University, Chongqing 400038, People's Republic of China
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Shabrani NC, Khan NFQ, Kale VP, Limaye LS. Polyunsaturated fatty acids confer cryoresistance on megakaryocytes generated from cord blood and also enhance megakaryocyte production from cryopreserved cord blood cells. Cytotherapy 2012; 14:366-80. [PMID: 22250991 DOI: 10.3109/14653249.2011.649186] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND AIMS Previous data have shown that the addition of docosahexanoic acid (DHA)/arachidonic acid (AA) has a beneficial effect on cytokine-mediated in vitro generation of megakaryocytes (MK) from umbilical cord blood (UCB).Cryopreservation forms an inherent part of UCB banking and MK progenitors are known to be very sensitive to the stresses of freezing. It is therefore imperative to generate functional cells from cryopreserved cells, and the generated cells need to be cryopreserved until used. In the present study, cryopreservation of ex vivo-expanded MK as well as MK generation from cryopreserved UCB samples was investigated. METHODS MK generated with or without DHA/AA were cryopreserved in freezing medium containing 10% dimethyl sulfoxide (DMSO). Freezing efficacy was tested by quantitating MK after revival. Cryopreserved CD34(+) cells were cultured with stem cell factor (SCF) and thrombopoietin (TPO), in the presence and absence of DHA/AA for 10 days, and then quantitated for MK. Results. We observed a 1.5-3-fold increase in MK numbers, their progenitor content and their expression of phenotypic markers and MK-related transcription factors. DHA/AA sets showed a 2-5-fold improved engraftment in NOD/SCID mice. These data showed that the beneficial effect of DHA/AA obtained during MK expansion was not altered after freezing stress. The enhancement in MK generation obtained from fresh cord blood (CB) cells was reproduced with comparable efficiency when we used cryopreserved CB samples. CONCLUSIONS Taken together, our data suggest that in vitro-generated DHA/AA MK survive cryoinjuries in a functionally better state. DHA/AA support a more efficient generation of MK from cryopreserved UCB.
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Affiliation(s)
- Namrata C Shabrani
- Stem Cell Laboratory, National Center for Cell Science, Ganeshkhind, Pune, India
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