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Martín-González C, Ribot-Hernández I, Fernández-Rodríguez CM, Pérez-Hernández O, González-Navarrete L, Godoy-Reyes AM, Rodríguez-Gaspar M, Martínez-Riera A, González-Reimers E. Mean platelet volume and mortality in patients with alcohol use disorder. Dig Liver Dis 2023; 55:1236-1241. [PMID: 37277289 DOI: 10.1016/j.dld.2023.05.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Revised: 05/21/2023] [Accepted: 05/23/2023] [Indexed: 06/07/2023]
Abstract
Several recent studies have pointed out the relationship of platelet size with increased mortality or adverse clinical course. Most studies show that increased mean platelet volume (MPV) may be associated with a deleterious outcome in different settings such as sepsis or neoplasia, whereas other researchers have found the opposite. In inflammatory conditions there is an altered secretion of several cytokines, some of them exerting a marked influence on platelet biogenesis and/or on platelet activation and aggregation. Alcohol use disorder is a chronic situation characterized by a protracted low-grade inflammation. In this study we analyze the relationship between proinflammatory cytokines and MPV and their relationships with mortality in patients with alcohol abuse. We determined serum levels of tumor necrosis factor (TNF)-α, interleukin (IL)-6 and IL-8 and routine laboratory variables among 184 patients with alcohol use disorder admitted to our hospital and followed-up for a median of 42 months. We found that MPV was inversely related to TNF-α (ρ=-0.34), and directly to IL-8 (ρ=0.32, p<0.001 in both cases) and to IL-6 (ρ=0.15; p = 0.046). Reduced MPV was related both with short-term (<6 months) and long-term mortality. Conclusion: These results suggest that inflammatory cytokines are strongly related to MPV. A low MPV is associated with a poor prognosis among patients with alcohol use disorder.
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Affiliation(s)
- Candelaria Martín-González
- Servicio de Medicina Interna, Hospital Universitario de Canarias, Universidad de La Laguna, Tenerife, Canary Islands, Spain.
| | - Iván Ribot-Hernández
- Servicio de Medicina Interna, Hospital Universitario de Canarias, Universidad de La Laguna, Tenerife, Canary Islands, Spain
| | - Camino M Fernández-Rodríguez
- Servicio de Medicina Interna, Hospital Universitario de Canarias, Universidad de La Laguna, Tenerife, Canary Islands, Spain
| | - Onán Pérez-Hernández
- Servicio de Medicina Interna, Hospital Universitario de Canarias, Universidad de La Laguna, Tenerife, Canary Islands, Spain
| | - Lourdes González-Navarrete
- Servicio de Medicina Interna, Hospital Universitario de Canarias, Universidad de La Laguna, Tenerife, Canary Islands, Spain
| | - Ana M Godoy-Reyes
- Servicio de Medicina Interna, Hospital Universitario de Canarias, Universidad de La Laguna, Tenerife, Canary Islands, Spain
| | - Melchor Rodríguez-Gaspar
- Servicio de Medicina Interna, Hospital Universitario de Canarias, Universidad de La Laguna, Tenerife, Canary Islands, Spain
| | - Antonio Martínez-Riera
- Servicio de Medicina Interna, Hospital Universitario de Canarias, Universidad de La Laguna, Tenerife, Canary Islands, Spain
| | - Emilio González-Reimers
- Servicio de Medicina Interna, Hospital Universitario de Canarias, Universidad de La Laguna, Tenerife, Canary Islands, Spain
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2
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Karnik SJ, Nazzal MK, Kacena MA, Bruzzaniti A. Megakaryocyte Secreted Factors Regulate Bone Marrow Niche Cells During Skeletal Homeostasis, Aging, and Disease. Calcif Tissue Int 2023; 113:83-95. [PMID: 37243755 PMCID: PMC11179715 DOI: 10.1007/s00223-023-01095-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Accepted: 05/01/2023] [Indexed: 05/29/2023]
Abstract
The bone marrow microenvironment contains a diverse array of cell types under extensive regulatory control and provides for a novel and complex mechanism for bone regulation. Megakaryocytes (MKs) are one such cell type that potentially acts as a master regulator of the bone marrow microenvironment due to its effects on hematopoiesis, osteoblastogenesis, and osteoclastogenesis. While several of these processes are induced/inhibited through MK secreted factors, others are primarily regulated by direct cell-cell contact. Notably, the regulatory effects that MKs exert on these different cell populations has been found to change with aging and disease states. Overall, MKs are a critical component of the bone marrow that should be considered when examining regulation of the skeletal microenvironment. An increased understanding of the role of MKs in these physiological processes may provide insight into novel therapies that can be used to target specific pathways important in hematopoietic and skeletal disorders.
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Affiliation(s)
- Sonali J Karnik
- Department of Orthopaedic Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Murad K Nazzal
- Department of Orthopaedic Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Melissa A Kacena
- Department of Orthopaedic Surgery, Indiana University School of Medicine, Indianapolis, IN, USA.
- Richard L. Roudebush VA Medical Center, Indianapolis, IN, USA.
| | - Angela Bruzzaniti
- Department of Biomedical Sciences and Comprehensive Care, Indiana University School of Dentistry, Indianapolis, IN, USA.
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3
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Yuan H, Liu Y, Zhang J, Dong JF, Zhao Z. Transcription factors in megakaryocytes and platelets. Front Immunol 2023; 14:1140501. [PMID: 36969155 PMCID: PMC10034027 DOI: 10.3389/fimmu.2023.1140501] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Accepted: 03/01/2023] [Indexed: 03/11/2023] Open
Abstract
Transcription factors bind promoter or regulatory sequences of a gene to regulate its rate of transcription. However, they are also detected in anucleated platelets. The transcription factors RUNX1, GATA1, STAT3, NFκB, and PPAR have been widely reported to play key roles in the pathophysiology of platelet hyper-reactivity, thrombosis, and atherosclerosis. These non-transcriptional activities are independent of gene transcription or protein synthesis but their underlying mechanisms of action remain poorly defined. Genetic and acquired defects in these transcription factors are associated with the production of platelet microvesicles that are known to initiate and propagate coagulation and to promote thrombosis. In this review, we summarize recent developments in the study of transcription factors in platelet generation, reactivity, and production of microvesicles, with a focus on non-transcriptional activities of selected transcription factors.
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Affiliation(s)
- Hengjie Yuan
- Tianjin Institute of Neurology, Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China
- BloodWorks Research Institute, Seattle, WA, United States
| | - Yafan Liu
- Tianjin Institute of Neurology, Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China
| | - Jianning Zhang
- Tianjin Institute of Neurology, Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China
| | - Jing-fei Dong
- BloodWorks Research Institute, Seattle, WA, United States
- Division of Hematology, Department of Medicine, University of Washington, School of Medicine, Seattle, WA, United States
- *Correspondence: Zilong Zhao, ; Jing-fei Dong,
| | - Zilong Zhao
- Tianjin Institute of Neurology, Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China
- BloodWorks Research Institute, Seattle, WA, United States
- *Correspondence: Zilong Zhao, ; Jing-fei Dong,
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4
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Su CH, Liao WJ, Ke WC, Yang RB, Tarn WY. The Y14-p53 regulatory circuit in megakaryocyte differentiation and thrombocytopenia. iScience 2021; 24:103368. [PMID: 34816104 PMCID: PMC8593568 DOI: 10.1016/j.isci.2021.103368] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 09/27/2021] [Accepted: 10/26/2021] [Indexed: 11/19/2022] Open
Abstract
Thrombocytopenia-absent radius (TAR) syndrome is caused by RBM8A insufficiency. We generated megakaryocyte-specific Rbm8a knockout (Rbm8aKOMK) mice that exhibited marked thrombocytopenia, internal hemorrhage, and splenomegaly, providing evidence that genetic deficiency of Rbm8a causes a disorder of platelet production. Rbm8aKOMK mice accumulated low-ploidy immature megakaryocytes in the bone marrow and exhibited defective platelet activation and aggregation. Accordingly, depletion of Y14 (RBM8A) in human erythroleukemia (HEL) cells compromised phorbol-ester-induced polyploidization. Notably, Y14/RBM8A deficiency induced both p53 and p21 in megakaryocytes and HEL cells. Treatment with a p53 inhibitor restored ex vivo differentiation of Rbm8aKOMK megakaryocytes and unexpectedly activated Y14 expression in HEL cells. Trp53 knockout partially restored megakaryocyte differentiation by reversing cell-cycle arrest and increased platelet counts of Rbm8aKOMK, indicating that excess p53 in part accounts for thrombocytopenia in TAR syndrome. This study provides evidence for the role of the Y14-p53 circuit in platelet production and a potential therapeutic strategy.
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Affiliation(s)
- Chun-Hao Su
- Institute of Biomedical Sciences, Academia Sinica, 128 Academia Road, Section 2, Nangang, Taipei 11529, Taiwan
| | - Wei-Ju Liao
- Institute of Biomedical Sciences, Academia Sinica, 128 Academia Road, Section 2, Nangang, Taipei 11529, Taiwan
| | - Wei-Chi Ke
- Institute of Biomedical Sciences, Academia Sinica, 128 Academia Road, Section 2, Nangang, Taipei 11529, Taiwan
| | - Ruey-Bing Yang
- Institute of Biomedical Sciences, Academia Sinica, 128 Academia Road, Section 2, Nangang, Taipei 11529, Taiwan
| | - Woan-Yuh Tarn
- Institute of Biomedical Sciences, Academia Sinica, 128 Academia Road, Section 2, Nangang, Taipei 11529, Taiwan
- Corresponding author
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5
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Gao Q, Tang Q, Xia Z, Yi S, Cai M, Du H, Yang J, Li J, Xing Q, Luo J, Yang G. Molecular identification and functional analysis of MyD88 in giant freshwater prawn (Macrobrachium rosenbergii) and expression changes in response to bacterial challenge. Int J Biol Macromol 2021; 178:492-503. [PMID: 33647335 DOI: 10.1016/j.ijbiomac.2021.02.177] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 12/25/2020] [Accepted: 02/23/2021] [Indexed: 02/08/2023]
Abstract
Myeloid differentiation factor 88 (MyD88) is a crucial adaptor protein for Toll-like receptor (TLR)-mediated signaling pathways and plays an important role in immune response. In this study, the full-length cDNA of MyD88 from Macrobrachium rosenbergii (MRMyD88) was cloned. The MRMyD88 cDNA is 1758 bp long and contains a 1398-bp open reading frame. Multiple sequence alignment and phylogenetic analysis revealed that the amino acid sequence of MRMyD88 shared high identity with the known MyD88 proteins. The MRMyD88 mRNA was widely expressed in all examined tissues, with highest level in intestine, followed by gonad and pleopod. Furthermore, the MRMyD88 promoter region, spanning 1622 bp, contains several transcription factor-binding sites, including nine GATA-1 box motifs. Electrophoretic mobility shift assay showed that Gfi-1, SRF, and Oct-1 bind to the upstream region of MRMyD88. Additionally, the results showed that the expression levels of TLR1, TLR2 and TLR3 were different in response to Vibrio anguillarum, Lactobacillus plantarum and Aeromonas hydrophila infections. However, these bacteria significantly increased the expression levels of MyD88 and prophenoloxidase. These data suggest that the TLR-mediated signaling pathway is MyD88-dependent in response to pathogenic and probiotic bacteria in M. rosenbergii.
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Affiliation(s)
- Quanxin Gao
- Zhejiang Provincial Key Laboratory of Aquatic Resources Conservation and Development; Key Laboratory of Aquatic Animal Genetic Breeding and Nutrition, Chinese Academy of Fishery Sciences; Huzhou Cent Hosp, Huzhou University; College of Life Science, Huzhou University, Huzhou 313000, PR China
| | - Qiongying Tang
- Zhejiang Provincial Key Laboratory of Aquatic Resources Conservation and Development; Key Laboratory of Aquatic Animal Genetic Breeding and Nutrition, Chinese Academy of Fishery Sciences; Huzhou Cent Hosp, Huzhou University; College of Life Science, Huzhou University, Huzhou 313000, PR China
| | - Zhenglong Xia
- Jiangsu Shufeng Prawn Breeding Co., LTD., Gaoyou 225654, PR China
| | - Shaokui Yi
- Zhejiang Provincial Key Laboratory of Aquatic Resources Conservation and Development; Key Laboratory of Aquatic Animal Genetic Breeding and Nutrition, Chinese Academy of Fishery Sciences; Huzhou Cent Hosp, Huzhou University; College of Life Science, Huzhou University, Huzhou 313000, PR China
| | - Miuying Cai
- Jiangsu Shufeng Prawn Breeding Co., LTD., Gaoyou 225654, PR China
| | - Houkuan Du
- Jiangsu Shufeng Prawn Breeding Co., LTD., Gaoyou 225654, PR China
| | - Jie Yang
- Jiangsu Shufeng Prawn Breeding Co., LTD., Gaoyou 225654, PR China
| | - Jingfen Li
- Zhejiang Provincial Key Laboratory of Aquatic Resources Conservation and Development; Key Laboratory of Aquatic Animal Genetic Breeding and Nutrition, Chinese Academy of Fishery Sciences; Huzhou Cent Hosp, Huzhou University; College of Life Science, Huzhou University, Huzhou 313000, PR China
| | - Qianqian Xing
- Zhejiang Provincial Key Laboratory of Aquatic Resources Conservation and Development; Key Laboratory of Aquatic Animal Genetic Breeding and Nutrition, Chinese Academy of Fishery Sciences; Huzhou Cent Hosp, Huzhou University; College of Life Science, Huzhou University, Huzhou 313000, PR China
| | - Jinping Luo
- Zhejiang Provincial Key Laboratory of Aquatic Resources Conservation and Development; Key Laboratory of Aquatic Animal Genetic Breeding and Nutrition, Chinese Academy of Fishery Sciences; Huzhou Cent Hosp, Huzhou University; College of Life Science, Huzhou University, Huzhou 313000, PR China
| | - Guoliang Yang
- Zhejiang Provincial Key Laboratory of Aquatic Resources Conservation and Development; Key Laboratory of Aquatic Animal Genetic Breeding and Nutrition, Chinese Academy of Fishery Sciences; Huzhou Cent Hosp, Huzhou University; College of Life Science, Huzhou University, Huzhou 313000, PR China; Jiangsu Shufeng Prawn Breeding Co., LTD., Gaoyou 225654, PR China.
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Bian W, Chen W, Jiang X, Qu H, Jiang J, Yang J, Liang X, Zhao B, Sun Y, Zhang C. Downregulation of Long Non-coding RNA Nuclear Paraspeckle Assembly Transcript 1 Inhibits MEG-01 Differentiation and Platelet-Like Particles Activity. Front Genet 2020; 11:571467. [PMID: 33193674 PMCID: PMC7596361 DOI: 10.3389/fgene.2020.571467] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 09/22/2020] [Indexed: 01/22/2023] Open
Abstract
Platelets are derived from megakaryocytes and play an important role in blood coagulation. By using high throughput sequencing, we have found that the long non-coding RNA (lncRNA) nuclear paraspeckle assembly transcript 1 (NEAT1) is abundant in platelets (GEO ID: 200097348). However, little is known about its role in regulating megakaryocyte differentiation and platelet activity. This study aims to clarify the effect of NEAT1 on MEG-01 differentiation and platelet-like particle (PLP) activity. NEAT1 in MEG-01 cells was knocked down by siRNA transfection. The adhesion of MEG-01 and PLP to collagen-coated coverslips was observed under a fluorescence microscope. Flow cytometry was used to investigate cell apoptosis, cell cycle, the levels of D41/CD42b on MEG-01 cells and CD62P on PLPs. Quantitative real-time polymerase chain reaction was used to detect NEAT1 and IL-8 expression levels. Western blot was used to measure the protein levels of Bcl-2, Bax, cleaved caspase-3, and IL-8. RNA-binding protein immunoprecipitation was used to detect the interaction of NEAT1 and splicing factor proline/glutamine-rich (SFPQ). Results showed that NEAT1 knockdown decreased the adhesion ability of thrombin-stimulated MEG-01 and PLP. The expression of CD62P on PLPs and CD41/CD42b on MEG-01 cells was inhibited by NEAT1 knockdown. In addition, NEAT1 knockdown inhibited cell apoptosis with increased Bcl2/Bax ratio and decreased cleaved caspase-3, and reduced the percentage of cells in the G0/G1 phase. Meanwhile, NEAT1 knockdown inhibited the expression of IL-8. A strong interaction of NEAT1 and SFPQ, a transcriptional repressor of IL-8, was identified. NEAT1 knockdown reduced the interaction between SFPQ and NEAT1.The results suggest that lncRNA NEAT1 knockdown decreases MEG-01 differentiation, PLP activity, and IL-8 level. The results also indicate that the regulation of NEAT1 on IL-8 may be realized via a direct interaction between NEAT1 and SFPQ.
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Affiliation(s)
- Weihua Bian
- School of Pharmacy, Binzhou Medical University, Yantai, China
| | - Wangping Chen
- Department of Cardiovascular Surgery, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Xiaoli Jiang
- School of Pharmacy, Binzhou Medical University, Yantai, China
| | - Huiqing Qu
- Department of Blood Transfusion, Affiliated Hospital of Binzhou Medical University, Binzhou, China
| | - Jing Jiang
- School of Pharmacy, Binzhou Medical University, Yantai, China
| | - Jinfu Yang
- Department of Cardiovascular Surgery, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Xinyue Liang
- School of Pharmacy, Binzhou Medical University, Yantai, China
| | - Bingrui Zhao
- School of Pharmacy, Binzhou Medical University, Yantai, China
| | - Yeying Sun
- School of Pharmacy, Binzhou Medical University, Yantai, China
| | - Chunxiang Zhang
- School of Pharmacy, Binzhou Medical University, Yantai, China
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