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Wang R, Hu X, Wang J, Zhou L, Hong Y, Zhang Y, Xiong F, Zhang X, Ye WC, Wang H. Proanthocyanidin A1 promotes the production of platelets to ameliorate chemotherapy-induced thrombocytopenia through activating JAK2/STAT3 pathway. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2022; 95:153880. [PMID: 34906892 DOI: 10.1016/j.phymed.2021.153880] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2021] [Revised: 11/22/2021] [Accepted: 12/02/2021] [Indexed: 06/14/2023]
Abstract
BACKGROUND Chemotherapy-induced thrombocytopenia (CIT) is a severe adverse drug reaction, and the main reason for CIT is the destruction of megakaryocytes (MKs, precursor cells of platelet) in bone marrow by chemotherapy. Peanut skin, the seed coat of Arachis hypogaea L., is a traditional Chinese medicine commonly used to treat thrombocytopenia. However, its active compounds and the mechanisms remain unclear. PURPOSE This study aims to clarify the active compounds of peanut skin to exhibit thrombogenic effects against CIT and their underlying mechanisms in vitro and in vivo. STUDY DESIGN The bioassay-guided isolation based on the proliferation of MKs was used to explore the possible platelet-enhancing ingredients in peanut skin. HSCCC technique coupled with preparative HPLC was used to separate the active compounds. Dami cells and carboplatin-treated mice model were used to evaluate the thrombogenic effects of PS-1. Network pharmacology, molecular docking, dynamics simulation studies, kinase activity, surface plasmon resonance (SPR), cellular thermal shift assay (CETSA), isothermal dose-response fingerprint (ITDRFCETSA) and western blot analysis were performed to investigate the mechanisms of PS-1. RESULTS Proanthocyanidin A1 (PS-1) and its stereoisomers (PS-2-4) were demonstrated to promote the proliferation of MKs (Dami cells), especially PS-1 (EC50 = 8.58 μM). Further studies demonstrated that PS-1 could induce the differentiation of Dami cells in dose/time-dependent manner. Biological target analysis showed that PS-1 directly bound to JAK2 (KD = 2.06 μM) to exert potent activating effect (EC50 = 0.66 μM). Oral administration of PS-1 (25 or 50 mg/kg) significantly improved CIT, but this effect was confirmed to be inhibited by JAK2 inhibitor AG490, indicating that PS-1 exerted its efficacy through JAK2 in vivo. CONCLUSION Proanthocyanins (PS-1-4) derived from peanut skin were first clarified as platelet-enhancing ingredients to improve CIT. The underlying mechanism of PS-1 was proved to promote the proliferation and differentiation of MKs via JAK2/STAT3 pathway both in vitro and in vivo.
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Affiliation(s)
- Rong Wang
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, People's Republic of China
| | - Xiaolong Hu
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, People's Republic of China
| | - Jingjin Wang
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, People's Republic of China
| | - Lina Zhou
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, People's Republic of China
| | - Yu Hong
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, People's Republic of China
| | - Yuanhao Zhang
- Department of Biological Sciences, Xi'an Jiaotong-Liverpool University, Suzhou 215028, People's Republic of China
| | - Fei Xiong
- State Key Laboratory of Bioelectronics, Jiangsu Laboratory for Biomaterials and Devices, Southeast University, Nanjing 210009, People's Republic of China
| | - Xiaoqi Zhang
- Institute of Traditional Chinese Medicine & Natural Products, Jinan University, Guangzhou 510632, People's Republic of China
| | - Wen-Cai Ye
- Institute of Traditional Chinese Medicine & Natural Products, Jinan University, Guangzhou 510632, People's Republic of China
| | - Hao Wang
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, People's Republic of China.
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Wang Q, Chang H, Shen Q, Li Y, Xing D. Photobiomodulation therapy for thrombocytopenia by upregulating thrombopoietin expression via the ROS-dependent Src/ERK/STAT3 signaling pathway. J Thromb Haemost 2021; 19:2029-2043. [PMID: 33501731 DOI: 10.1111/jth.15252] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Revised: 01/05/2021] [Accepted: 01/07/2021] [Indexed: 12/31/2022]
Abstract
BACKGROUND Chemotherapy-induced thrombocytopenia (CIT) can increase the risk of bleeding, which may delay or prevent the administration of anticancer treatment schedules. Photobiomodulation therapy (PBMT), a non-invasive physical treatment, has been proposed to improve thrombocytopenia; however, its underlying regulatory mechanism is not fully understood. OBJECTIVE To further investigate the mechanism of thrombopoietin (TPO) in megakaryocytopoiesis and thrombopoiesis. METHODS Multiple approaches such as western blotting, cell transfection, flow cytometry, and animal studies were utilized to explore the effect and mechanism of PBMT on thrombopoiesis. RESULTS PBMT prevented a severe drop in platelet count by increasing platelet production, and then ameliorated CIT. Mechanistically, PBMT significantly upregulated hepatic TPO expression in a thrombocytopenic mouse model, which promoted megakaryocytopoiesis and thrombopoiesis. The levels of TPO mRNA and protein increased by PBMT via the Src/ERK/STAT3 signaling pathway in hepatic cells. Furthermore, the generation of the reactive oxygen species was responsible for PBMT-induced activation of Src and its downstream target effects. CONCLUSIONS Our research suggests that PBMT is a promising therapeutic strategy for the treatment of CIT.
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Affiliation(s)
- Qiuhong Wang
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
| | - Haocai Chang
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
| | - Qi Shen
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
| | - Yonghua Li
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
| | - Da Xing
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
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3
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Dahariya S, Raghuwanshi S, Sangeeth A, Malleswarapu M, Kandi R, Gutti RK. Megakaryoblastic leukemia: a study on novel role of clinically significant long non-coding RNA signatures in megakaryocyte development during treatment with phorbol ester. Cancer Immunol Immunother 2021; 70:3477-3488. [PMID: 33890137 DOI: 10.1007/s00262-021-02937-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Accepted: 04/07/2021] [Indexed: 12/27/2022]
Abstract
Acute megakaryocytic leukemia (AMKL) is one of the rarest sub-types of acute myeloid leukemia (AML). AMKL is characterized by high proliferation of megakaryoblasts and myelofibrosis of bone marrow, this disease is also associated with poor prognosis. Previous analyses have reported that the human megakaryoblastic cells can be differentiated into cells with megakaryocyte (MK)-like characteristics by phorbol 12-myristate 13-acetate (PMA). However, little is known about the mechanism responsible for regulating this differentiation process. We performed long non-coding RNA (lncRNA) profiling to investigate the differently expressed lncRNAs in megakaryocyte blast cells treated with and without PMA and examined those that may be responsible for the PMA-induced differentiation of megakaryoblasts into MKs. We found 30 out of 90 lncRNA signatures to be differentially expressed after PMA treatment of megakaryoblast cells, including the highly expressed JPX lncRNA. Further, in silico lncRNA-miRNA and miRNA-mRNA interaction analysis revealed that the JPX is likely involved in unblocking the expression of TGF-β receptor (TGF-βR) by sponging oncogenic miRNAs (miR-9-5p, miR-17-5p, and miR-106-5p) during MK differentiation. Further, we report the activation of TGF-βR-induced non-canonical ERK1/2 and PI3K/AKT pathways during PMA-induced MK differentiation and ploidy development. The present study demonstrates that TGF-βR-induced non-canonical ERK1/2 and PI3K/AKT pathways are associated with PMA-induced MK differentiation and ploidy development; in this molecular mechanism, JPX lncRNA could act as a decoy for miR-9-5p, miR-17-5p, and miR-106-5p, titrating them away from TGF-βR mRNAs. Importantly, this study reveals the activation of ERK1/2 and PI3K/AKT pathway in PMA-induced Dami cell differentiation into MK. The identified differentially expressed lncRNA signatures may facilitate further study of the detailed molecular mechanisms associated with MK development. Thus, our data provide numerous targets with therapeutic potential for the modulation of the differentiation of megakaryoblastic cells in AMKL.
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Affiliation(s)
- Swati Dahariya
- Department of Biochemistry, School of Life Sciences, University of Hyderabad, Gachibowli, Hyderabad, TS, 500046, India
| | - Sanjeev Raghuwanshi
- Department of Biochemistry, School of Life Sciences, University of Hyderabad, Gachibowli, Hyderabad, TS, 500046, India
| | - Anjali Sangeeth
- Department of Biochemistry, School of Life Sciences, University of Hyderabad, Gachibowli, Hyderabad, TS, 500046, India
| | - Mahesh Malleswarapu
- Department of Biochemistry, School of Life Sciences, University of Hyderabad, Gachibowli, Hyderabad, TS, 500046, India
| | - Ravinder Kandi
- Department of Biochemistry, School of Life Sciences, University of Hyderabad, Gachibowli, Hyderabad, TS, 500046, India
| | - Ravi Kumar Gutti
- Department of Biochemistry, School of Life Sciences, University of Hyderabad, Gachibowli, Hyderabad, TS, 500046, India.
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Wan YW, Liu W, Feng MT, Pu J, Zhuang SW, He B, Liu X. LXRβ is involved in the control of platelet production from megakaryocytes. Blood Cells Mol Dis 2021; 89:102568. [PMID: 33862368 DOI: 10.1016/j.bcmd.2021.102568] [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: 01/12/2021] [Revised: 03/30/2021] [Accepted: 03/30/2021] [Indexed: 11/30/2022]
Abstract
Liver X receptor β (LXRβ), a nuclear receptor involved in important cellular processes such as cholesterol, glucose and fatty acid metabolism, was suggested to be involved in platelet aggregation but its detailed roles are not clear. In the present study, we evaluated the contribution of LXRβ to platelet functions and production. In the systemic collagen-epinephrine thrombosis mouse model, LXRβ-deficient mice showed increased area of blood clots compared with control wide-type littermates. The aggregation of LXRβ-deficient platelets in response to ADP was stronger than that of control mice platelets. More importantly, the number of platelets in blood of LXRβ-deficient mice was significantly higher than that of wild-type mice, especially for female mice. Knockdown of LXRβ expression in human megakaryoblastic Dami cells also enhanced cell polyploidization, formation of proplatelets and production of platelet-like particles. Increase in expression levels of proteins related to oxidative phosphorylation such as NADH:ubiquinone oxidoreductase core subunit V1 (Ndufv1) was observed in LXRβ-knockdown Dami cells. The levels of Ndufv1 in LXRβ-deficient mice platelets were also higher than that of wild-type mice. Taken together, our findings suggested LXRβ might participate in control of platelet production from megakaryocytes by regulating mitochondrial metabolism.
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Affiliation(s)
- Yu-Wei Wan
- Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Wang Liu
- Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Mu-Ting Feng
- Department of Cardiology, Ren Ji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200127, China
| | - Jun Pu
- Department of Cardiology, Ren Ji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200127, China
| | - Shao-Wei Zhuang
- Department of Cardiology, Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, Shanghai 200137, China
| | - Ben He
- Department of Cardiology, Ren Ji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200127, China.
| | - Xuan Liu
- Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
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5
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Song H, Liu J, Tian X, Liu D, Li J, Zhao X, Mei Z, Yan C, Han Y. Thrombopoietic effects of CCAAT/enhancer-binding protein β on the early-stage differentiation of megakaryocytes. Arch Biochem Biophys 2021; 703:108846. [PMID: 33744198 DOI: 10.1016/j.abb.2021.108846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 02/25/2021] [Accepted: 03/11/2021] [Indexed: 11/30/2022]
Abstract
CCAAT/enhancer-binding protein β (C/EBPβ) is a transcription factor that is involved in adipocytic and monocytic differentiation. However, the physiological role of C/EBPβ in megakaryocytes (MKs) is not clear. In this study, we investigated the effects of C/EBPβ on the early-stage differentiation of MKs, and explored the potential mechanisms of action. We established a cytosine arabinoside-induced thrombocytopenia mouse model using C57BL/6 mice. In the thrombocytopenia mice, the platelet count was found to be decreased, and the mRNA and protein expression levels of C/EBPβ in MKs were also reduced. Furthermore, the maturation of Dami (MKs cell line) cells was induced by phorbol 12-myristate 13-acetate. When C/EBPβ was silenced in Dami cells by transfection using C/EBPβ-small interfering RNA, the expression of MKs-specific markers CD41 and CD62P, was dramatically decreased, resulting in morphological changes and differentiation retardation in low ploidy, which were evaluated using flow cytometry, real-time polymerase chain reaction, western blot, and confocal microscopy. The mitogen activated protein kinase-extracellular signal-regulated kinase signaling pathway was found to be required for the differentiation of MKs; knockdown of C/EBPβ in MEK/ERK1/2 pathway attenuated MKs differentiation. Overexpression of C/EBPβ in MEK/ERK1/2 pathway inhibited by U0126 did not promote MKs differentiation. To the best of our knowledge, C/EBPβ plays an important role in MKs differentiation and polyploidy cell cycle control. Taken together, C/EBPβ may have thrombopoietic effects in the differentiation of MKs, and may assist in the development of treatments for various disorders.
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Affiliation(s)
- HaiXu Song
- Air Force Medical University, Xi'an, China
| | - Jiahao Liu
- Xiamen Special Service Health Center of the Army, Xiamen, China
| | - Xiaoxiang Tian
- Department of Cardiology and Cardiovascular Research Institute, General Hospital of Northern Theater Command, Shenyang, China
| | - Dan Liu
- Department of Cardiology and Cardiovascular Research Institute, General Hospital of Northern Theater Command, Shenyang, China
| | - Jiayin Li
- Department of Cardiology and Cardiovascular Research Institute, General Hospital of Northern Theater Command, Shenyang, China
| | - Xiaojie Zhao
- Department of Cardiology and Cardiovascular Research Institute, General Hospital of Northern Theater Command, Shenyang, China
| | - Zhu Mei
- Department of Cardiology and Cardiovascular Research Institute, General Hospital of Northern Theater Command, Shenyang, China
| | - Chenghui Yan
- Department of Cardiology and Cardiovascular Research Institute, General Hospital of Northern Theater Command, Shenyang, China
| | - Yaling Han
- Air Force Medical University, Xi'an, China; Department of Cardiology and Cardiovascular Research Institute, General Hospital of Northern Theater Command, Shenyang, China.
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6
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Gao S, Han Y, Chen X, Dai L, Gao H, Lei Z, Wang X, Wang Z, Wu H. Epigenetic modulation of glycoprotein VI gene expression by DNA methylation. Life Sci 2019; 241:117103. [PMID: 31783053 DOI: 10.1016/j.lfs.2019.117103] [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: 09/27/2019] [Revised: 11/18/2019] [Accepted: 11/24/2019] [Indexed: 11/29/2022]
Abstract
AIMS Glycoprotein VI (GPVI) is an important platelet membrane receptor. The expression of GPVI on platelet membranes is increased in patients with coronary heart disease (CHD). DNA methylation is one of the most common post-replication and pre-transcriptional modifications and plays a critical role in the regulation of gene expression. Here, we aimed to reveal how methylation regulates GPVI expression. MAIN METHODS Pyrosequencing was used to determine whether the GPVI promoter region in leukocytes from CHD patients is hypomethylated. The expressions of GPVI in CHD patients were detected using qRT-PCR and Western blot. The effect of methylation of the GPVI promoter region on regulating its transcriptional activity was analyzed using in vitro luciferase assay. The expression of P-selectin in platelet-like particles was determined using flow cytometry, and SYK phosphorylation was observed using Western blot. KEY FINDINGS We found that the GPVI promoter region in leukocytes from CHD patients was hypomethylated and the expression of GPVI at the mRNA and protein level was elevated in CHD patients. We also found that the hypermethylation of GPVI promoter region inhibited the expression of GPVI in the -322 to +75, -539 to +75, and -937 to +75 regions in Dami cells. Moreover, the data showed that the methylation or demethylation regulated the GPVI expression and platelet-like particle activation in Dami cells. SIGNIFICANCE Taken together, these results indicate that DNA methylation regulates GPVI expression and that CpG methylation levels in the promoter region of the GPVI gene may be a biomarker of CHD.
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Affiliation(s)
- Shuibo Gao
- Laboratory of Cell Imaging, Henan University of Chinese Medicine, Zhengzhou 450002, China
| | - Yongjun Han
- Laboratory of Cell Imaging, Henan University of Chinese Medicine, Zhengzhou 450002, China
| | - Xiaohui Chen
- Scientific Research and Experiment Center, Henan University of Chinese Medicine, Zhengzhou 450046, China
| | - Liping Dai
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, China
| | - Haixia Gao
- Laboratory of Cell Imaging, Henan University of Chinese Medicine, Zhengzhou 450002, China
| | - Zhen Lei
- Laboratory of Cell Imaging, Henan University of Chinese Medicine, Zhengzhou 450002, China
| | - Xinzhou Wang
- Laboratory of Cell Imaging, Henan University of Chinese Medicine, Zhengzhou 450002, China
| | - Zhentao Wang
- Institute of Cardiovascular Disease, Henan University of Chinese Medicine, Zhengzhou 450002, China
| | - Hong Wu
- Laboratory of Cell Imaging, Henan University of Chinese Medicine, Zhengzhou 450002, China; Institute of Cardiovascular Disease, Henan University of Chinese Medicine, Zhengzhou 450002, China.
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7
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Inhibition of Tropomyosin Receptor Kinase A Signaling Negatively Regulates Megakaryopoiesis and induces Thrombopoiesis. Sci Rep 2019; 9:2781. [PMID: 30808933 PMCID: PMC6391490 DOI: 10.1038/s41598-019-39385-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Accepted: 12/05/2018] [Indexed: 02/07/2023] Open
Abstract
Neurotrophin signaling modulates the differentiation and function of mature blood cells. The expression of neurotrophin receptors and ligands by hematopoietic and stromal cells of the bone marrow indicates that neurotrophins have the potential to regulate hematopoietic cell fate decisions. This study investigates the role of neurotrophins and Tropomyosin receptor kinases (Trk) in the development of megakaryocytes (MKs) and their progeny cells, platelets. Results indicate that primary human MKs and MK cells lines, DAMI, Meg-01 and MO7e express TrkA, the primary receptor for Nerve Growth Factor (NGF) signaling. Activation of TrkA by NGF enhances the expansion of human MK progenitors (MKPs) and, to some extent, MKs. Whereas, inhibition of TrkA receptor by K252a leads to a 50% reduction in the number of both MKPs and MKs and is associated with a 3-fold increase in the production of platelets. In order to further confirm the role of TrkA signaling in platelet production, TrkA deficient DAMI cells were generated using CRISPR-Cas9 technology. Comparative analysis of wild-type and TrkA-deficient Dami cells revealed that loss of TrkA signaling induced apoptosis of MKs and increased platelet production. Overall, these findings support a novel role for TrkA signaling in platelet production and highlight its potential as therapeutic target for Thrombocytopenia.
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Mardente S, Mari E, Massimi I, Tafani M, Guerriero R, Morsilli O, Pulcinelli FM, Bianchi ME, Zicari A. From Human Megakaryocytes to Platelets: Effects of Aspirin on High-Mobility Group Box 1/Receptor for Advanced Glycation End Products Axis. Front Immunol 2018; 8:1946. [PMID: 29375570 PMCID: PMC5770369 DOI: 10.3389/fimmu.2017.01946] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Accepted: 12/18/2017] [Indexed: 12/12/2022] Open
Abstract
Platelets (PLTs) are the major source of high-mobility group box 1 (HMGB1), a protein that is involved in sterile inflammation of blood vessels and thrombosis. Megakaryocytes (MKs) synthesize HMGB1 and transfer both protein and mRNA into PLTs and PLT-derived microvesicles (MV). Free HMGB1 found in supernatants of in vitro differentiated MKs and in a megakaryoblastic cell line (DAMI cells). Aspirin "in vivo" and "in vitro" not only reduces HMGB1 and receptor for advanced glycation end products expression on MKs and PLTs but also drives the movement of HMGB1 from MKs into PLTs and PLT-derived MV. These findings suggest that consumption of low doses of aspirin reduces the risk of atherosclerosis complications as well as reducing PLT aggregation by the inhibition of COX-1.
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Affiliation(s)
- Stefania Mardente
- Department of Experimental Medicine, University of Rome Sapienza, Rome, Italy
| | - Emanuela Mari
- Department of Experimental Medicine, University of Rome Sapienza, Rome, Italy
| | - Isabella Massimi
- Department of Experimental Medicine, University of Rome Sapienza, Rome, Italy
| | - Marco Tafani
- Department of Experimental Medicine, University of Rome Sapienza, Rome, Italy.,Department of Cellular and Molecular Pathology, IRCCS San Raffaele, Rome, Italy
| | - Raffaella Guerriero
- Department of Cardiovascular, Dysmetabolic and Aging-Associated Diseases, Istituto Superiore di Sanità, Rome, Italy
| | - Ornella Morsilli
- Department of Cardiovascular, Dysmetabolic and Aging-Associated Diseases, Istituto Superiore di Sanità, Rome, Italy
| | - Fabio M Pulcinelli
- Department of Experimental Medicine, University of Rome Sapienza, Rome, Italy
| | - Marco E Bianchi
- Chromatin Dynamics Unit, San Raffaele University and Scientific Institute, Milan, Italy
| | - Alessandra Zicari
- Department of Experimental Medicine, University of Rome Sapienza, Rome, Italy
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Bozzi V, Panza E, Barozzi S, Gruppi C, Seri M, Balduini C, Pecci A. Mutations responsible for MYH9-related thrombocytopenia impair SDF-1-driven migration of megakaryoblastic cells. Thromb Haemost 2017; 106:693-704. [DOI: 10.1160/th11-02-0126] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2011] [Accepted: 07/11/2011] [Indexed: 01/01/2023]
Abstract
SummaryMYH9-related disease (MYH9-RD) is an autosomal-dominant thrombocytopenia caused by mutations in the gene for the heavy chain of nonmuscle myosin-IIA (NMMHC-IIA). Recent in vitro studies led to the hypothesis that thrombocytopenia of MYH9-RD derives from an ectopic platelet release by megakaryocytes in the osteoblastic areas of bone marrow (BM), which are enriched in type I collagen, rather than in vascular spaces. SDF-1-driven migration of megakaryocytes within BM to reach the vascular spaces is a key mechanism for platelet biogenesis. Since myosin-IIA is implicated in polarised migration of different cell types, we hypothesised that MYH9 mutations could interfere with this mechanism. We therefore investigated the SDF-1-driven migration of a megakaryoblastic cell line, Dami cells, on type I collagen or fibrinogen by a modified transwell assay. Inhibition of myosin-IIA ATPase activity suppressed the SDF-1-driven migration of Dami cells, while over-expression of NMMHC-IIA increased the efficiency of chemotaxis, indicat- ing a role for NMMHC-IIA in this mechanism. Transfection of cells with three MYH9 mutations frequently responsible for MYH9-RD (p.R702C, p.D1424H, or p.R1933X) resulted in a defective SDF-1-driven migration with respect to the wild-type counterpart and in increased cell spreading onto collagen. Analysis of differential localisation of wild-type and mutant proteins suggested that mutant NMMHC-IIAs had an impaired cytoplasmic re-organisation in functional cytoskeletal structures after cell adhesion to collagen. These findings support the hypothesis that a defect of SDF-1-driven migration of megakaryocytes induced by MYH9 mutations contributes to ectopic platelet release in the BM osteoblastic areas, resulting in ineffective platelet production.
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Undi RB, Gutti U, Gutti RK. LiCl regulates mitochondrial biogenesis during megakaryocyte development. J Trace Elem Med Biol 2017; 39:193-201. [PMID: 27908414 DOI: 10.1016/j.jtemb.2016.10.003] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2016] [Revised: 10/06/2016] [Accepted: 10/07/2016] [Indexed: 11/26/2022]
Abstract
JAK-STAT, PI3K-AKT and MAPK signaling pathways are involved in platelet production process. Although wnt signaling has been reported in the biogenesis of platelets, but its role in megakaryocyte development is not well studied. We used an inducible canonical wnt signaling system that utilizes LiCl (GSK-3β inhibitor). LiCl could activate wnt signaling pathway along with maturation of megakaryocytes. Mitochondrial staining showed an increase in mitochondrial mass upon induction with LiCl. Also, mitochondrial markers PGC-1α and TFAM were up regulated with increase in mitochondrial DNA content. LiCl leads to increase in the ROS production, suggesting significance of mitochondria in megakaryocyte development.
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Affiliation(s)
- Ram Babu Undi
- Stem Cells and Haematological Disorders Laboratory, Department of Biochemistry, School of Life Sciences, University of Hyderabad, PO Gachibowli, Hyderabad-500046, Telangana, India
| | - Usha Gutti
- Department of Biotechnology, GITAM Institute of Science, GITAM University, Visakhapatnam-530 045, Andhra Pradesh, India.
| | - Ravi Kumar Gutti
- Stem Cells and Haematological Disorders Laboratory, Department of Biochemistry, School of Life Sciences, University of Hyderabad, PO Gachibowli, Hyderabad-500046, Telangana, India.
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Wang HT, Yang B, Hu B, Chi XH, Luo LL, Yang HQ, Lang XL, Geng J, Qiao CX, Li Y, Wu XX, Zhu HL, Lv M, Lu XC. The effect of amifostine on differentiation of the human megakaryoblastic Dami cell line. Cancer Med 2016; 5:2012-21. [PMID: 27228575 PMCID: PMC4884634 DOI: 10.1002/cam4.759] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Revised: 04/01/2016] [Accepted: 04/06/2016] [Indexed: 01/09/2023] Open
Abstract
Amifostine is a cytoprotective drug that was initially used to control and treat nuclear radiation injury and is currently used to provide organ protection in cancer patients receiving chemotherapy. Clinical studies have also found that amifostine has some efficacy in the treatment of cytopenia caused by conditions such as myelodysplastic syndrome and immune thrombocytopenia, both of which involve megakaryocyte maturation defects. We hypothesized that amifostine induced the differentiation of megakaryocytes and investigated this by exposing the human Dami megakaryocyte leukemia cell line to amifostine (1 mmol/L). After 12 days of amifostine exposure, optical microscopy showed that the proportion of Dami cells with diameters >20 μm had increased to 24.63%. Transmission electron microscopy identified the development of a platelet demarcation membrane system, while flow cytometry detected increased CD41a expression and decreased CD33 expression on the Dami cell surface. Ploidy analysis found that the number of polyploid cells with >4N DNA content increased to 27.96%. We did not detect any elevation in the mRNA or protein levels of megakaryocytic differentiation-associated transcription factors GATA-binding factor 1 (GATA-1) and nuclear factor, erythroid 2 (NF-E2), but nuclear import assay revealed an increased nuclear translocation of these proteins. These findings indicate that amifostine induced the differentiation of Dami cells into mature megakaryocytes via a mechanism involving increased nuclear translocation of the transcription factors, NF-E2 and GATA-1.
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Affiliation(s)
- Hai-Tao Wang
- Department of Geriatric Hematology, Chinese PLA General Hospital, Beijing, 100853, China.,Institute of Basic Medical Sciences, Academy of Military Medical Sciences, Beijing, 100039, China.,Department of Hematology, First Affiliated Hospital of Chinese PLA General Hospital, Beijing, 100048, China
| | - Bo Yang
- Department of Geriatric Hematology, Chinese PLA General Hospital, Beijing, 100853, China
| | - Bo Hu
- Institute of Basic Medical Sciences, Academy of Military Medical Sciences, Beijing, 100039, China.,Department of Thoracic Surgery II, Peking University Cancer Hospital & Institute, Beijing, 100142, China
| | - Xiao-Hua Chi
- Department of Pharmacy, Chinese PLA Rocket General Hospital, Beijing, 100800, China
| | - Long-Long Luo
- Institute of Basic Medical Sciences, Academy of Military Medical Sciences, Beijing, 100039, China
| | - Hong-Qi Yang
- Department of Geriatric Hematology, Chinese PLA General Hospital, Beijing, 100853, China
| | - Xiao-Ling Lang
- Institute of Basic Medical Sciences, Academy of Military Medical Sciences, Beijing, 100039, China
| | - Jing Geng
- Institute of Basic Medical Sciences, Academy of Military Medical Sciences, Beijing, 100039, China
| | - Chun-Xia Qiao
- Institute of Basic Medical Sciences, Academy of Military Medical Sciences, Beijing, 100039, China
| | - Yan Li
- Institute of Basic Medical Sciences, Academy of Military Medical Sciences, Beijing, 100039, China
| | - Xiao-Xiong Wu
- Department of Hematology, First Affiliated Hospital of Chinese PLA General Hospital, Beijing, 100048, China
| | - Hong-Li Zhu
- Department of Geriatric Hematology, Chinese PLA General Hospital, Beijing, 100853, China
| | - Ming Lv
- Institute of Basic Medical Sciences, Academy of Military Medical Sciences, Beijing, 100039, China
| | - Xue-Chun Lu
- Department of Geriatric Hematology, Chinese PLA General Hospital, Beijing, 100853, China
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12
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Li J, Sharkey CC, Wun B, Liesveld JL, King MR. Genetic engineering of platelets to neutralize circulating tumor cells. J Control Release 2016; 228:38-47. [PMID: 26921521 PMCID: PMC4828270 DOI: 10.1016/j.jconrel.2016.02.036] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Revised: 02/10/2016] [Accepted: 02/23/2016] [Indexed: 12/12/2022]
Abstract
Mounting experimental evidence demonstrates that platelets support cancer metastasis. Within the circulatory system, platelets guard circulating tumor cells (CTCs) from immune elimination and promote their arrest at the endothelium, supporting CTC extravasation into secondary sites. Neutralization of CTCs in blood circulation can potentially attenuate metastases to distant organs. Therefore, extensive studies have explored the blockade of platelet-CTC interactions as an anti-metastatic strategy. Such an intervention approach, however, may cause bleeding disorders since the platelet-CTC interactions inherently rely on the blood coagulation cascade including platelet activation. On the other hand, platelets have been genetically engineered to correct inherited bleeding disorders in both animal models and human clinical trials. In this study, inspired by the physical association between platelets and CTCs, platelets were genetically modified to express surface-bound tumor necrosis factor-related apoptosis-inducing ligand (TRAIL), a cytokine known to induce apoptosis specifically in tumor cells. The TRAIL-expressing platelets were demonstrated to kill cancer cells in vitro and significantly reduce metastases in a mouse model of prostate cancer metastasis. Our results suggest that using platelets to produce and deliver cancer-specific therapeutics can provide a Trojan-horse strategy of neutralizing CTCs to attenuate metastasis.
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Affiliation(s)
- Jiahe Li
- Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY 14853, USA
| | - Charles C Sharkey
- Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY 14853, USA
| | - Brittany Wun
- Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY 14853, USA
| | - Jane L Liesveld
- Department of Medicine, Hematology/Oncology (SMD), University of Rochester Medical Center, School of Medicine and Dentistry, Rochester, NY 14642, USA
| | - Michael R King
- Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY 14853, USA.
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13
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Xiao Y, Zheng Y, Tan P, Xu P, Zhang Q. Overexpression of nuclear distribution protein (hNUDC) causes pro-apoptosis and differentiation in Dami megakaryocytes. Cell Prolif 2013; 46:576-85. [PMID: 24010816 DOI: 10.1111/cpr.12055] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2013] [Accepted: 05/01/2013] [Indexed: 11/27/2022] Open
Abstract
OBJECTIVES Overexpression of hNUDC, a member of the nuclear distribution protein family, reduces cell population growth in prostate cancer cell lines, concurrent with induced morphological change and enhanced polyploidization. These phenomena are also closely associated with terminal phases of megakaryocyte maturation. MATERIALS AND METHODS In Dami cells, MTT and trypan blue assays were used to investigate cell viability and proliferation effects of hNUDC, and flow cytometry was used to analyse cell cycle and DNA content. Real-time RT-PCR was employed to detect mRNA expression. Activations of caspase-3, ERK, Akt and Stat-5 were determined by immunoblotting. May-Grünwald-Giemsa staining was performed to reveal cell morphology. RESULTS AND CONCLUSION Functional studies using adenovirus-mediated hNUDC overexpression led to inhibition of megakaryocyte proliferation via cell cycle arrest in G2/M transition phase. This process could have been be mediated by upregulation of p21 and downregulation of its downstream targets, including cyclin B1, cyclin B2 and c-myc. Enhanced apoptosis in turn ensued, characterized by increased caspase-3 activation, upregulation of pro-apoptotic Bax and downregulation of anti-apoptotic Bcl-2. Furthermore, hNUDC overexpression elevated the level of megakaryocyte maturation, associated with increased polyploidy, cell morphological changes and increased expression of cell surface differentiation markers, including CD10, CD44, CD41 and CD61. Our results further suggest that the ERK signalling pathway was involved in hNUDC overexpression-induced apoptosis. Taken together, this study provides experimental evidence for overexpression of hNUDC in Dami cells and suggests that activation of apoptotic machinery may be involved in megakaryocytic differentiation.
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Affiliation(s)
- Y Xiao
- Key Laboratory of Gene Engineering of Education Ministry, School of Life Sciences, Zhongshan University, Guangzhou, 510275, China
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14
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Jarrar YB, Shin JG, Lee SJ. Expression of arachidonic acid-metabolizing cytochrome P450s in human megakaryocytic Dami cells. In Vitro Cell Dev Biol Anim 2013; 49:492-500. [PMID: 23722412 PMCID: PMC3713264 DOI: 10.1007/s11626-013-9633-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2013] [Accepted: 05/03/2013] [Indexed: 12/22/2022]
Abstract
Cytochrome P450s (P450s) are involved in the metabolism of arachidonic acid (ARA), and ARA metabolites are associated with various cellular signaling pathways, such as blood hemostasis and inflammation. The present study demonstrates the expression of ARA-metabolizing P450s in the human megakaryocytic Dami cells using reverse transcriptase-polymerase chain reaction (RT-PCR) and immunublotting analysis followed by activity assays using ARA as a substrate. In addition to the previously identified CYP5A1, both protein and mRNAs of CYP1A1, 2U1, and 2J2 bands were detected. Ethoxyresorufin-O-deethylase (EROD) activity was observed in Dami cells, and its activity was significantly decreased after treatment with the P450 inhibitor SKF-525A when compared to the control groups (60% reduction, P < 0.001). CYP1A1 protein expression in Dami cells was induced by 3-methylenecholantheren. This increase in CYP1A1 protein level was correlated with enhanced EROD activity (fourfold increase vs. the control), as well as with increased metabolites, such as 20-hydroxyeicosatrienoic acid (20-HETE), 14, 15-EET (14-,15-epoxyeicosatrienoic acid), and 14, 15-dihydroxyeicosatrienoic acid (14, 15-DHET). The expression of soluble epoxide hydrolase, an enzyme responsible for the synthesis of DHETs from EETs, was confirmed by RT-PCR. Furthermore, 15 ARA metabolites, including 8,9-EET, 14,15-EET, and 20-HETE, were detected by LC-MS/MS in ARA-treated Dami cells, and their levels were decreased with the treatment of the SKF-525A. The present data suggest the possibility that the P450s play a role in the metabolism of ARA and other CYP-related substrates in human megakaryocytes and that P450 expression in megakaryocytic cell lines may predict their existences in platelets with functional activities.
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Affiliation(s)
- Yazun Bashir Jarrar
- Department of Pharmacology and Pharmacogenomics Research Center, Inje University College of Medicine, Inje University, 633-165 Gaegum-dong, Busanjin-gu, Busan, South Korea
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15
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Sahler J, Woeller C, Spinelli S, Blumberg N, Phipps R. A novel method for overexpression of peroxisome proliferator-activated receptor-γ in megakaryocyte and platelet microparticles achieves transcellular signaling. J Thromb Haemost 2012; 10:2563-72. [PMID: 23039852 PMCID: PMC3666584 DOI: 10.1111/jth.12017] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
BACKGROUND Microparticles are submicrometer vesicles that contain RNA and protein derived from their parent cells. Platelet and megakaryocyte microparticles represent 80% of circulating microparticles, and their numbers are elevated in diseases such as cancer and type 2 diabetes. The ability of microparticles to transport protein, lipid and RNA to target cells, as a means of transcellular communication, remains poorly understood. Determining the influence that microparticles have on circulating cells is essential for understanding their role in health and in disease. OBJECTIVES To develop a novel approach to modify the composition of platelet microparticles, and understand how such changes impact their transcellular communication. METHODS This novel model utilizes a lentiviral technology to alter the transcription factor peroxisome proliferator-activated receptor-γ (PPARγ) content of megakaryoblastic cell lines and primary megakaryocytes, and also the protein composition of generated platelets and microparticles. The subsequent microparticles were isolated and added to target cells for assessment of uptake and resultant signaling events. RESULTS We successfully engineered microparticles to contain green fluorescent protein and elevated levels of PPARγ. We found that these altered microparticles could be internalized by the monocytic cell line THP-1 and primary human microvascular endothelial cells. Importantly, microparticle-delivered PPARγ was shown to increase the expression of fatty acid-binding protein 4 (FABP4), which is a known PPARγ target gene in THP-1 cells. CONCLUSION This proof-of-concept modification of megakaryocyte, platelet and microparticle composition and subsequent change in target cell physiology is an important new tool to address transcellular communication of microparticles.
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Affiliation(s)
- J Sahler
- Department of Microbiology and Immunology, School of Medicine and Dentistry, University of Rochester, NY 14642, USA
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16
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Fibronectin promotes proplatelet formation in the human megakaryocytic cell line UT-7/TPO. Cell Biol Int 2012; 36:39-45. [PMID: 21970435 DOI: 10.1042/cbi20110383] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
We investigated PPF (proplatelet formation) in the human megakaryocytic cell line UT-7/TPO in vitro and signal transduction pathways responsible for PPF. The megakaryocytic cell lines are useful for studying megakaryocyte biology, although PPF is induced only in the presence of phorbol ester. TPO (thrombopoietin) stimulates megakaryocyte proliferation and differentiation; however, no PPF occurred in the megakaryocytic cell lines, even after the addition of TPO. Therefore, factors other than TPO may play an important role in the process of PPF. As PPF occurs in the bone marrow in vivo, we noted extracellular matrix proteins and found that soluble FN (fibronectin) induced potent PPF in UT-7/TPO without phorbol ester. A Western blot analysis showed that the expression of integrins was not increased by FN treatment. Anti-β1 antibody and the RGD (arginine-glycine-aspartate) peptide inhibited FN-induced PPF. This result indicates that the signal originated from integrin β1, which is essential to inducing PPF in UT-7/TPO. Results of the experiments using several inhibitors suggest that activation of the MEK [MAPK (mitogen-activated protein kinase)/ERK (extracellular-signal-regulated kinase) kinase]-ERK and PI3K (phosphoinositide 3-kinase) pathways are necessary for PPF. The phosphorylation of ERK gradually increased for 2 h after the addition of soluble FN, which suggests that activation of ERK is essential for the initial induction of FN-induced PPF in UT-7/TPO. UT-7/TPO is a useful cell line that enables us to study the signals of PPF without effects of chemical compounds.
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Zappelli C, van der Zwaan C, Thijssen-Timmer DC, Mertens K, Meijer AB. Novel role for galectin-8 protein as mediator of coagulation factor V endocytosis by megakaryocytes. J Biol Chem 2012; 287:8327-35. [PMID: 22267735 DOI: 10.1074/jbc.m111.305151] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
Galectin-8 (Gal8) interacts with β-galactoside-containing glycoproteins and has recently been implicated to play a role in platelet activation. It has been suggested that Gal8 may also interact with platelet coagulation factor V (FV). This indispensable cofactor is stored in α-granules of platelets via a poorly understood endocytic mechanism that only exists in megakaryocytes (platelet precursor cells). In this study, we now assessed the putative role of Gal8 for FV biology. Surface plasmon resonance analysis and a solid phase binding assay revealed that Gal8 binds FV. The data further show that β-galactosides block the interaction between FV and Gal8. These findings indicate that Gal8 specifically interacts with FV in a carbohydrate-dependent manner. Confocal microscopy studies and flow cytometry analysis demonstrated that megakaryocytic DAMI cells internalize FV. Flow cytometry showed that these cells express Gal8 on their cell surface. Reducing the functional presence of Gal8 on the cells either by an anti-Gal8 antibody or by siRNA technology markedly impaired the endocytic uptake of FV. Compatible with the apparent role of Gal8 for FV uptake, endocytosis of FV was also affected in the presence of β-galactosides. Strikingly, thrombopoietin-differentiated DAMI cells, which represent a more mature megakaryocytic state, not only lose the capacity to express cell-surface bound Gal8 but also lose the ability to internalize FV. Collectively, our data reveal a novel role for the tandem repeat Gal8 in promoting FV endocytosis.
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Affiliation(s)
- Claudia Zappelli
- Department of Plasma Proteins, Sanquin Research, 1066 CX Amsterdam, The Netherlands
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