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Yang Q, Chen L, Zhang H, Li M, Sun L, Wu X, Zhao H, Qu X, An X, Wang T. DNMT1 regulates human erythropoiesis by modulating cell cycle and endoplasmic reticulum stress in a stage-specific manner. Cell Death Differ 2024; 31:999-1012. [PMID: 38719927 DOI: 10.1038/s41418-024-01305-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 04/20/2024] [Accepted: 04/23/2024] [Indexed: 08/09/2024] Open
Abstract
The dynamic balance of DNA methylation and demethylation is required for erythropoiesis. Our previous transcriptomic analyses revealed that DNA methyltransferase 1 (DNMT1) is abundantly expressed in erythroid cells at all developmental stages. However, the role and molecular mechanisms of DNMT1 in human erythropoiesis remain unknown. Here we found that DNMT1 deficiency led to cell cycle arrest of erythroid progenitors which was partially rescued by treatment with a p21 inhibitor UC2288. Mechanically, this is due to decreased DNA methylation of p21 promoter, leading to upregulation of p21 expression. In contrast, DNMT1 deficiency led to increased apoptosis during terminal stage by inducing endoplasmic reticulum (ER) stress in a p21 independent manner. ER stress was attributed to the upregulation of RPL15 expression due to the decreased DNA methylation at RPL15 promoter. The upregulated RPL15 expression subsequently caused a significant upregulation of core ribosomal proteins (RPs) and thus ultimately activated all branches of unfolded protein response (UPR) leading to the excessive ER stress, suggesting a role of DNMT1 in maintaining protein homeostasis during terminal erythroid differentiation. Furthermore, the increased apoptosis was significantly rescued by the treatment of ER stress inhibitor TUDCA. Our findings demonstrate the stage-specific role of DNMT1 in regulating human erythropoiesis and provide new insights into regulation of human erythropoiesis.
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Affiliation(s)
- Qianqian Yang
- School of Life Sciences, Zhengzhou University, Science Road 100, Zhengzhou, 450001, China
| | - Lixiang Chen
- School of Life Sciences, Zhengzhou University, Science Road 100, Zhengzhou, 450001, China
| | - Hengchao Zhang
- School of Life Sciences, Zhengzhou University, Science Road 100, Zhengzhou, 450001, China
| | - Mengjia Li
- School of Life Sciences, Zhengzhou University, Science Road 100, Zhengzhou, 450001, China
- Department of Hematology, First Affiliated Hospital of Zhengzhou University, No.1 Jianshe East Road, Zhengzhou, 450052, China
| | - Lei Sun
- School of Life Sciences, Zhengzhou University, Science Road 100, Zhengzhou, 450001, China
| | - Xiuyun Wu
- School of Life Sciences, Zhengzhou University, Science Road 100, Zhengzhou, 450001, China
| | - Huizhi Zhao
- School of Life Sciences, Zhengzhou University, Science Road 100, Zhengzhou, 450001, China
| | - Xiaoli Qu
- School of Life Sciences, Zhengzhou University, Science Road 100, Zhengzhou, 450001, China.
| | - Xiuli An
- Laboratory of Membrane Biology, New York Blood Center, 310 East, 67th Street, New York, NY, 10065, USA.
| | - Ting Wang
- School of Life Sciences, Zhengzhou University, Science Road 100, Zhengzhou, 450001, China.
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2
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Kulaphisit M, Pomlok K, Saenjum C, Mungkornasawakul P, Trisuwan K, Wipasa J, Inta A, Smith DR, Lithanatudom P. The anti-leukemic activity of a luteolin-apigenin enriched fraction from an edible and ethnomedicinal plant, Elsholtzia stachyodes, is exerted through an ER stress/autophagy/cell cycle arrest/ apoptotic cell death signaling axis. Biomed Pharmacother 2023; 160:114375. [PMID: 36753951 DOI: 10.1016/j.biopha.2023.114375] [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: 12/13/2022] [Revised: 02/02/2023] [Accepted: 02/03/2023] [Indexed: 02/09/2023] Open
Abstract
BACKGROUND Elsholtzia is a genus in the family Lamiaceae, and some species in this genus are commonly used for food and in ethnomedicinal formulations by some ethnic groups of China and Thailand. Despite their apparent utility, few studies have been conducted to evaluate their potential as sources of medicinally active agents. PURPOSE We aimed to investigate the cytotoxicity of ethanolic extracts from three selected edible plant species of the genus Elsholtzia and the most promising extract was further characterized for the bioactive constituents and signaling mechanisms associated with the anti-leukemic activity. MATERIALS AND METHODS Ethanolic extracts were screened for cytotoxicity using flow cytometry. HPLC and LC-MS were used to analyze the chemical constituents of the most potent fraction from E. stachyodes. The relevant mechanism of action was assessed by western blot and multispectral imaging flow cytometry (MIFC). RESULTS The most potent anti-leukemic activity was observed with the ethanolic extract from E. stachyodes. Luteolin and apigenin were characterized as the major constituents in the fraction from E. stachyodes. Mechanistically, the luteolin-apigenin enriched fraction (LAEF) induced the UPR, increased autophagic flux, induced cell cycle arrest and apoptotic cell death. LAEF showed significantly less cytotoxicity towards peripheral blood mononuclear cells (PBMCs) as compared to leukemia cell lines. CONCLUSION This study is the first to report E. stachyodes as a new source of luteolin and apigenin which are capable of triggering leukemic cell death. This could lead to a novel strategy against leukemia using ethnomedicinal plant extracts as an alternative or supplemental anti-cancer agent.
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Affiliation(s)
- Mattapong Kulaphisit
- PhD Degree Program in Biology, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand; Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Kumpanat Pomlok
- PhD Degree Program in Biology, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand; Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Chalermpong Saenjum
- Center of Excellence for Innovation in Analytical Science and Technology for Biodiversity-based Economic and Society, Chiang Mai University, Chiang Mai 50200, Thailand; Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand.
| | | | - Kongkiat Trisuwan
- Department of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Jiraprapa Wipasa
- Research Institute for Health Sciences, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Angkana Inta
- Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Duncan R Smith
- Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom, 73170, Thailand
| | - Pathrapol Lithanatudom
- Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand; Center of Excellence for Innovation in Analytical Science and Technology for Biodiversity-based Economic and Society, Chiang Mai University, Chiang Mai 50200, Thailand.
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3
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Chaichompoo P, Nithipongvanitch R, Kheansaard W, Tubsuwan A, Srinoun K, Vadolas J, Fucharoen S, Smith DR, Winichagoon P, Svasti S. Increased autophagy leads to decreased apoptosis during β-thalassaemic mouse and patient erythropoiesis. Sci Rep 2022; 12:18628. [PMID: 36329049 PMCID: PMC9633749 DOI: 10.1038/s41598-022-21249-6] [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: 01/22/2022] [Accepted: 09/26/2022] [Indexed: 11/06/2022] Open
Abstract
β-Thalassaemia results from defects in β-globin chain production, leading to ineffective erythropoiesis and subsequently to severe anaemia and other complications. Apoptosis and autophagy are the main pathways that regulate the balance between cell survival and cell death in response to diverse cellular stresses. Herein, the death of erythroid lineage cells in the bone marrow from both βIVS2-654-thalassaemic mice and β-thalassaemia/HbE patients was investigated. Phosphatidylserine (PS)-bearing basophilic erythroblasts and polychromatophilic erythroblasts were significantly increased in β-thalassaemia as compared to controls. However, the activation of caspase 8, caspase 9 and caspase 3 was minimal and not different from control in both murine and human thalassaemic erythroblasts. Interestingly, bone marrow erythroblasts from both β-thalassaemic mice and β-thalassaemia/HbE patients had significantly increased autophagy as shown by increased autophagosomes and increased co-localization between LC3 and LAMP-1. Inhibition of autophagy by chloroquine caused significantly increased erythroblast apoptosis. We have demonstrated increased autophagy which led to minimal apoptosis in β-thalassaemic erythroblasts. However, increased PS exposure occurring through other mechanisms in thalassaemic erythroblasts might cause rapid phagocytic removal by macrophages and consequently ineffective erythropoiesis in β-thalassaemia.
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Affiliation(s)
- Pornthip Chaichompoo
- grid.10223.320000 0004 1937 0490Department of Pathobiology, Faculty of Science, Mahidol University, Bangkok, Thailand ,grid.10223.320000 0004 1937 0490Thalassemia Research Center, Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom, 73170 Thailand
| | - Ramaneeya Nithipongvanitch
- grid.10223.320000 0004 1937 0490Thalassemia Research Center, Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom, 73170 Thailand
| | - Wasinee Kheansaard
- grid.10223.320000 0004 1937 0490Thalassemia Research Center, Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom, 73170 Thailand ,grid.10223.320000 0004 1937 0490Department of Clinical Microscopy, Faculty of Medical Technology, Mahidol University, Bangkok, Thailand
| | - Alisa Tubsuwan
- grid.10223.320000 0004 1937 0490Thalassemia Research Center, Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom, 73170 Thailand ,grid.10223.320000 0004 1937 0490Stem Cell Research Group, Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom, Thailand
| | - Kanitta Srinoun
- grid.10223.320000 0004 1937 0490Thalassemia Research Center, Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom, 73170 Thailand ,grid.7130.50000 0004 0470 1162Faculty of Medical Technology, Prince of Songkla University, Songkhla, Thailand
| | - Jim Vadolas
- grid.452824.dCentre for Cancer Research, Hudson Institute of Medical Research, Melbourne, Australia ,grid.1002.30000 0004 1936 7857Department of Molecular and Translational Science, Monash University, Melbourne, Australia
| | - Suthat Fucharoen
- grid.10223.320000 0004 1937 0490Thalassemia Research Center, Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom, 73170 Thailand
| | - Duncan R. Smith
- grid.10223.320000 0004 1937 0490Molecular Pathology Laboratory, Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom, Thailand
| | - Pranee Winichagoon
- grid.10223.320000 0004 1937 0490Thalassemia Research Center, Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom, 73170 Thailand
| | - Saovaros Svasti
- grid.10223.320000 0004 1937 0490Thalassemia Research Center, Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom, 73170 Thailand ,grid.10223.320000 0004 1937 0490Department of Biochemistry, Faculty of Science, Mahidol University, Bangkok, Thailand
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4
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The Roles of Mitophagy and Autophagy in Ineffective Erythropoiesis in β-Thalassemia. Int J Mol Sci 2022; 23:ijms231810811. [PMID: 36142738 PMCID: PMC9502731 DOI: 10.3390/ijms231810811] [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: 07/27/2022] [Revised: 09/08/2022] [Accepted: 09/10/2022] [Indexed: 01/19/2023] Open
Abstract
β-Thalassemia is one of the most common genetically inherited disorders worldwide, and it is characterized by defective β-globin chain synthesis leading to reduced or absent β-globin chains. The excess α-globin chains are the key factor leading to the death of differentiating erythroblasts in a process termed ineffective erythropoiesis, leading to anemia and associated complications in patients. The mechanism of ineffective erythropoiesis in β-thalassemia is complex and not fully understood. Autophagy is primarily known as a cell recycling mechanism in which old or dysfunctional proteins and organelles are digested to allow recycling of constituent elements. In late stage, erythropoiesis autophagy is involved in the removal of mitochondria as part of terminal differentiation. Several studies have shown that autophagy is increased in earlier erythropoiesis in β-thalassemia erythroblasts, as compared to normal erythroblasts. This review summarizes what is known about the role of autophagy in β-thalassemia erythropoiesis and shows that modulation of autophagy and its interplay with apoptosis may provide a new therapeutic route in the treatment of β-thalassemia. Literature was searched and relevant articles were collected from databases, including PubMed, Scopus, Prospero, Clinicaltrials.gov, Google Scholar, and the Google search engine. Search terms included: β-thalassemia, ineffective erythropoiesis, autophagy, novel treatment, and drugs during the initial search. Relevant titles and abstracts were screened to choose relevant articles. Further, selected full-text articles were retrieved, and then, relevant cross-references were scanned to collect further information for the present review.
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5
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Pomlok K, Pata S, Kulaphisit M, Pangnuchar R, Wipasa J, Smith DR, Kasinrerk W, Lithanatudom P. An IgM monoclonal antibody against domain 1 of CD147 induces non-canonical RIPK-independent necroptosis in a cell type specific manner in hepatocellular carcinoma cells. BIOCHIMICA ET BIOPHYSICA ACTA. MOLECULAR CELL RESEARCH 2022; 1869:119295. [PMID: 35598753 DOI: 10.1016/j.bbamcr.2022.119295] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 05/04/2022] [Accepted: 05/06/2022] [Indexed: 06/15/2023]
Abstract
CD147/Basigin/EMMPRIN is overexpressed in several cancerous tissues and it has been shown to induce matrix metalloproteinases (MMPs) whose expression is associated with cancer metastasis. Thus, targeting CD147 with monoclonal antibodies (mAbs) potentially has therapeutic applications in cancer immunotherapy. Here, we report the use of anti-CD147 mAbs targeting domain 1 of CD147, namely M6-1D4 (IgM), M6-1F3 (IgM), M6-2F9 (IgM) and M6-1E9 (IgG2a), against several human cancer cell lines. Strikingly, IgM but not IgG mAbs against CD147, especially clone M6-1D4, induced acute cellular swelling, and this phenomenon appeared to be specifically found with hepatocellular carcinoma (HCC) cells. Furthermore, molecular investigation upon treating HepG2 cells with M6-1D4 showed unfolded protein response (UPR) activation, autophagosome accumulation, and cell cycle arrest, but without classic apoptosis related features. More interestingly, prolonged M6-1D4 treatment (24 h) resulted in irreversible oncosis leading to necroptosis. Furthermore, treatment with a mixed lineage kinase domain-like psuedokinase (MLKL) inhibitor and partial knockout of MLKL resulted in reduced sensitivity to necroptosis in M6-1D4-treated HepG2 cells. Surprisingly however, the observed necroptotic signaling axis appeared to be non-canonical as it was independent of receptor-interacting serine/threonine-protein kinase (RIPK) phosphorylation. In addition, no cytotoxic effect on human dermal fibroblast (HDF) was observed after incubation with M6-1D4. Taken together, this study provides clues to target CD147 in HCC using mAbs, as well as sheds new light on a novel strategy to kill cancerous cells by the induction of necroptosis.
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Affiliation(s)
- Kumpanat Pomlok
- Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand; Ph.D.'s Degree Program in Biology (International Program), Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Supansa Pata
- Clinical Immunology Branch, Department of Medical Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Mattapong Kulaphisit
- Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand; Ph.D.'s Degree Program in Biology (International Program), Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Rachan Pangnuchar
- Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Jiraprapa Wipasa
- Center for Molecular and Cell Biology for Infectious Diseases, Research Institute for Health Sciences, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Duncan R Smith
- Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom 73170, Thailand
| | - Watchara Kasinrerk
- Clinical Immunology Branch, Department of Medical Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Pathrapol Lithanatudom
- Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand; Center of Excellence in Bioresources for Agriculture, Industry and Medicine, Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand.
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6
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Al-Kuraishy HM, Al-Gareeb AI, Onohuean H, El-Saber Batiha G. COVID-19 and erythrocrine function: The roller coaster and danger. Int J Immunopathol Pharmacol 2022; 36:3946320221103151. [PMID: 35590466 PMCID: PMC9124636 DOI: 10.1177/03946320221103151] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Erythrocrine function refers to erythrocytes’ ability to synthesize and release active
signaling molecules such as ATP and nitric oxide (NO). Erythrocyte NO regulates its
deformability and increases its perfusion and circulation that prevent tissue hypoxia.
Recently, there is a connotation between SARS-CoV-2 infection and erythrocrine function
due to alteration in the release of NO and ATP from erythrocytes. SARS-CoV-2 binds
erythrocyte band3 protein, which has a similar characteristic of ACE2, leading to
alteration of erythrocyte physiology like oxygen transport with development of hypoxia.
Similarly, SARS-CoV-2 infection activates erythrocyte protein kinase C alpha (PKC-α),
causing significant changes in the erythrocyte functions. The erythrocytes can bind
SARS-CoV-2 and its active particles with subsequent virus delivery to the liver and spleen
macrophages. Thus, the erythrocytes act as elimination for SARS-CoV-2 in COVID-19.
Moreover, the erythrocyte stored, release sphingosine-1 phosphate (S1P) improves
endothelial and regulates lymphocyte functions. SARS-CoV-2 ORF8 protein binds the
porphyrin part of hemoglobin heme at the β1 chain, causing hemolysis and dysfunctional
hemoglobin to reduce oxygen-carrying capacity. In conclusion, SARS-CoV-2 infection and
associated pro-inflammatory disorders lead to abnormal erythrocrine function with
subsequent inflammatory complications and endothelial dysfunction due to deficiency of
protective released molecules (NO, G1P, and ATP) from functional erythrocytes. In vitro,
preclinical, and clinical studies are mandatory in this regard.
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Affiliation(s)
- Hayder M Al-Kuraishy
- Department of Clinical Pharmacology and Medicine, College of Medicine, AL-mustansiriyiah University, AL-mustansiriyiah, Iraq
| | - Ali I Al-Gareeb
- Department of Clinical Pharmacology and Medicine, College of Medicine, AL-mustansiriyiah University, AL-mustansiriyiah, Iraq
| | - Hope Onohuean
- Biopharmaceutics Unit, Department of Pharmacology and Toxicology, School of Pharmacy, 365672Kampala International University Uganda, Western Campus, Ishaka-Bushenyi, Uganda
| | - Gaber El-Saber Batiha
- Department of Pharmacology and Therapeutics, Faculty of Veterinary Medicine, Damanhour University, Damanhour, AlBeheira, Egypt
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7
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Zhang Y, Xu Y, Zhang S, Lu Z, Li Y, Zhao B. The regulation roles of Ca 2+ in erythropoiesis: What have we learned? Exp Hematol 2021; 106:19-30. [PMID: 34879257 DOI: 10.1016/j.exphem.2021.12.192] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 11/15/2021] [Accepted: 12/03/2021] [Indexed: 01/09/2023]
Abstract
Calcium (Ca2+) is an important second messenger molecule in the body, regulating cell cycle and fate. There is growing evidence that intracellular Ca2+ levels play functional roles in the total physiological process of erythroid differentiation, including the proliferation and differentiation of erythroid progenitor cells, terminal enucleation, and mature red blood cell aging and clearance. Moreover, recent research on the pathology of erythroid disorders has made great progress in the past decades, indicating that calcium ion hemostasis is closely related to ineffective erythropoiesis and increased sensitivity to stress factors. In this review, we summarized what is known about the functional roles of intracellular Ca2+ in erythropoiesis and erythrocyte-related diseases, with an emphasis on the regulation of the intracellular Ca2+ homeostasis during erythroid differentiation. An understanding of the regulation roles of Ca2+ homeostasis in erythroid differentiation will facilitate further studies and eventually molecular identification of the pathways involved in the pathological process of erythroid disorders, providing new therapeutic opportunities in erythrocyte-related disease.
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Affiliation(s)
- Yuanzhen Zhang
- Department of Pharmacology, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Yan Xu
- Department of Pharmacology, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Shujing Zhang
- Department of Pharmacology, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Zhiyuan Lu
- Department of Pharmacology, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Yuan Li
- Department of Pharmacology, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Baobing Zhao
- Department of Pharmacology, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China; Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China.
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8
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Nanou A, Toumpeki C, Fanis P, Bianchi N, Cosenza LC, Zuccato C, Sentis G, Giagkas G, Stephanou C, Phylactides M, Christou S, Hadjigavriel M, Sitarou M, Lederer CW, Gambari R, Kleanthous M, Katsantoni E. Sex-specific transcriptional profiles identified in β-thalassemia patients. Haematologica 2021; 106:1207-1211. [PMID: 32817281 PMCID: PMC8018115 DOI: 10.3324/haematol.2020.248013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Indexed: 11/29/2022] Open
Affiliation(s)
- Aikaterini Nanou
- Basic Research Center, Biomedical Research Foundation, Academy of Athens, Athens, Greece
| | - Chrisavgi Toumpeki
- Basic Research Center, Biomedical Research Foundation, Academy of Athens, Athens, Greece
| | - Pavlos Fanis
- Molecular Genetics Thalassaemia Department, The Cyprus Institute of Neurology and Genetics, Nicosia
| | - Nicoletta Bianchi
- Department of Life Sciences and Biotechnology, Ferrara University, Ferrara, Italy
| | | | - Cristina Zuccato
- Department of Life Sciences and Biotechnology, Ferrara University, Ferrara, Italy
| | - George Sentis
- Basic Research Center, Biomedical Research Foundation, Academy of Athens, Athens, Greece
| | - Giorgos Giagkas
- Basic Research Center, Biomedical Research Foundation, Academy of Athens, Athens, Greece
| | - Coralea Stephanou
- Molecular Genetics Thalassaemia Department, The Cyprus Institute of Neurology and Genetics, Nicosia
| | - Marios Phylactides
- Molecular Genetics Thalassaemia Department, The Cyprus Institute of Neurology and Genetics, Nicosia
| | | | | | - Maria Sitarou
- Thalassemia Clinic Larnaca, Larnaca General Hospital, Larnaca, Cyprus
| | - Carsten W Lederer
- Molecular Genetics Thalassaemia Department, The Cyprus Institute of Neurology and Genetics, Nicosia
| | - Roberto Gambari
- Department of Life Sciences and Biotechnology, Ferrara University, Ferrara, Italy
| | - Marina Kleanthous
- Molecular Genetics Thalassaemia Department, The Cyprus Institute of Neurology and Genetics, Nicosia
| | - Eleni Katsantoni
- Basic Research Center, Biomedical Research Foundation, Academy of Athens, Athens, Greece
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9
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Cavezzi A, Troiani E, Corrao S. COVID-19: hemoglobin, iron, and hypoxia beyond inflammation. A narrative review. Clin Pract 2020; 10:1271. [PMID: 32509258 PMCID: PMC7267810 DOI: 10.4081/cp.2020.1271] [Citation(s) in RCA: 255] [Impact Index Per Article: 63.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Accepted: 05/27/2020] [Indexed: 02/08/2023] Open
Abstract
Coronavirus disease-19 (COVID-19) has been regarded as an infective-inflammatory disease, which affects mainly lungs. More recently, a multi-organ involvement has been highlighted, with different pathways of injury. A hemoglobinopathy, hypoxia and cell iron overload might have a possible additional role. Scientific literature has pointed out two potential pathophysiological mechanisms: i) severe acute respiratory syndrome-coronavirus-2 (SARS-CoV- 2) interaction with hemoglobin molecule, through CD147, CD26 and other receptors located on erythrocyte and/or blood cell precursors; ii) hepcidin-mimetic action of a viral spike protein, inducing ferroportin blockage. In this translational medicinebased narrative review, the following pathologic metabolic pathways, deriving from hemoglobin denaturation and iron metabolism dysregulation, are highlighted: i) decrease of functioning hemoglobin quote; ii) iron overload in cell/tissue (hyperferritinemia); iii) release of free toxic circulating heme; iv) hypoxemia and systemic hypoxia; v) reduction of nitric oxide; vi) coagulation activation; vii) ferroptosis with oxidative stress and lipoperoxidation; viii) mitochondrial degeneration and apoptosis. A few clinical syndromes may follow, such as pulmonary edema based on arterial vasoconstriction and altered alveolo-capillary barrier, sideroblastic-like anemia, endotheliitis, vasospastic acrosyndrome, and arterio- venous thromboembolism. We speculated that in COVID-19, beyond the classical pulmonary immune-inflammation view, the occurrence of an oxygen-deprived blood disease, with iron metabolism dysregulation, should be taken in consideration. A more comprehensive diagnostic/therapeutic approach to COVID-19 is proposed, including potential adjuvant interventions aimed at improving hemoglobin dysfunction, iron over-deposit and generalized hypoxic state.
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Affiliation(s)
| | - Emidio Troiani
- Primary Care and Territorial Health Unit, Social Security Institute, Cailungo, Republic of San Marino
| | - Salvatore Corrao
- ARNAS Civico Di Cristina Benfratelli Hospital Trust, Palermo; PROMISE Department, University of Palermo School of Medicine, Palermo, Italy
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10
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Wu Y, Zhang J, Wang M, Yang L, Wang Y, Hu T, Liu A, Cheng Q, Fu Z, Zhang P, Cao L. Proteomics analysis indicated the protein expression pattern related to the development of fetal conotruncal defects. J Cell Physiol 2019; 234:13544-13556. [PMID: 30635921 DOI: 10.1002/jcp.28033] [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: 05/26/2018] [Accepted: 11/30/2018] [Indexed: 11/08/2022]
Abstract
Abnormal development of embryonic conus arteriosus could lead to conotruncal defects in fetal heart, and increase the incidence of fetal congenital heart disease. Tetralogy of Fallot (TOF) is one of the most common forms of congenital heart disease. It may be helpful for us to solve this clinical problem through exploring the molecular mechanisms of development in embryonic congenital heart disease. Proteomics has attracted much attention in understanding the development of human diseases during the past decades. However, there is still little information about the relationship between protein expression pattern and TOF. In this study, we aimed to explore the potential linkage of proteomics and TOF development. Briefly, 121 differentially expressed proteins were identified from a TOF group, compared with a control group. The expression levels of 34 of these proteins were significantly different (>1.5 absolute fold change, p < 0.05) between the two groups. Gene ontology (GO) and pathway analysis showed that these proteins were mainly associated with carbon metabolism, biosynthesis of antibodies, positive regulation of transcription from RNA polymerase II promoter, nucleus, ATP binding, and so on. The ingenuity pathway analysis (IPA) results indicated that 435 of upstream regulators were identified of these differentially expressed proteins, which might be involved in the development of TOF. Data of string analysis showed the protein-protein interaction network among the differentially expressed proteins and regulators, which are related to TOF. In conclusion, our study explored the protein expression pattern of TOF, which might provide new insights into understanding the mechanism of TOF development and afford potential targets for TOF diagnosis and therapy.
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Affiliation(s)
- Yun Wu
- Department of Echocardiography, Nanjing First Hospital, Nanjing Medical University, Nanjing, China.,Department of Ultrasonography, Women's Hospital of Nanjing Medical University (Nanjing Maternity and Child Health Care Hospital), Nanjing, China
| | - Jingjing Zhang
- Department of Prenatal Diagnosis, Women's Hospital of Nanjing Medical University (Nanjing Maternity and Child Health Care Hospital), Nanjing, China
| | - Mei Wang
- Department of Pathology, Nanjing Hospital of Traditional Chinese Medicine, The Third Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Ling Yang
- Department of Ultrasonography, Women's Hospital of Nanjing Medical University (Nanjing Maternity and Child Health Care Hospital), Nanjing, China
| | - Yongmei Wang
- Department of Ultrasonography, Women's Hospital of Nanjing Medical University (Nanjing Maternity and Child Health Care Hospital), Nanjing, China
| | - Tao Hu
- Department of Ultrasonography, Women's Hospital of Nanjing Medical University (Nanjing Maternity and Child Health Care Hospital), Nanjing, China
| | - An Liu
- Department of Ultrasonography, Women's Hospital of Nanjing Medical University (Nanjing Maternity and Child Health Care Hospital), Nanjing, China
| | - Qing Cheng
- Department of Ultrasonography, Women's Hospital of Nanjing Medical University (Nanjing Maternity and Child Health Care Hospital), Nanjing, China
| | - Ziyi Fu
- Department of Ultrasonography, Women's Hospital of Nanjing Medical University (Nanjing Maternity and Child Health Care Hospital), Nanjing, China
| | - Pingyang Zhang
- Department of Echocardiography, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Li Cao
- Department of Ultrasonography, Women's Hospital of Nanjing Medical University (Nanjing Maternity and Child Health Care Hospital), Nanjing, China
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11
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Kiran SS, Aithal S, Belagavi CS. Hemoglobin E Hemoglobinopathy in an Adult from Assam with Unusual Presentation: A Diagnostic Dilemma. J Lab Physicians 2016; 8:116-9. [PMID: 27365922 PMCID: PMC4866382 DOI: 10.4103/0974-2727.180793] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Hemoglobin E (HbE) is estimated to affect at least one million people around the world. Carrier frequency of hemoglobin E/β-thalassemia (HbE/β-thalassemia) is highest in Southeast Asia, reaching as high as 60% in parts of Thailand, Laos, and Cambodia. In the Indian subcontinent, highest frequency is observed in The Northeast regions, but relatively rare in rest of the country. Increasing migration of population from highly affected areas is resulting in rising prevalence in The South and other parts of India. HbE/β-thalassemia is characterized by marked clinical diversity, phenotypic instability, and age-related changes in adaptation to anemia. This paper reports a case of HbE disease in an adult immigrant from Assam and documents the difficulties encountered in the definitive subtyping of HbE hemoglobinopathy. Distinguishing between homozygous HbE disease and HbE/β-thalassemia is a challenge to hematopathologist as both are clinically and hematologically similar.
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12
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Dysregulation of ferroportin gene expression in β0-thalassemia/Hb E disease. Ann Hematol 2015; 95:387-96. [DOI: 10.1007/s00277-015-2572-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2015] [Accepted: 12/02/2015] [Indexed: 12/13/2022]
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13
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Sornjai W, Khungwanmaythawee K, Svasti S, Fucharoen S, Wintachai P, Yoksan S, Ubol S, Wikan N, Smith DR. Dengue virus infection of erythroid precursor cells is modulated by both thalassemia trait status and virus adaptation. Virology 2014; 471-473:61-71. [DOI: 10.1016/j.virol.2014.10.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2014] [Accepted: 10/02/2014] [Indexed: 11/29/2022]
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14
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Regulated in DNA damage and development 1 (REDD1) promotes cell survival during serum deprivation by sustaining repression of signaling through the mechanistic target of rapamycin in complex 1 (mTORC1). Cell Signal 2013; 25:2709-16. [PMID: 24018049 DOI: 10.1016/j.cellsig.2013.08.038] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2013] [Accepted: 08/30/2013] [Indexed: 12/25/2022]
Abstract
Regulated in DNA damage and development 1 (REDD1) functions to repress signaling through the mechanistic target of rapamycin (mTOR) protein kinase in complex 1 (mTORC1) in response to diverse stress conditions. In the present study, we investigated the role of REDD1 in the response of cells to growth cessation induced by serum deprivation. REDD1 expression was induced within 2h of depriving cells of serum, with the induction being mediated through ER stress, as evidenced by activation of PERK, enhanced eIF2α phosphorylation, and ATF4 facilitated transcription of the REDD1 gene. In wild-type cells, signaling through mTORC1 was rapidly (within 30min) repressed in response to serum deprivation and the repression was sustained for at least 10h. In contrast, in REDD1 knockout cells mTORC1 signaling recovered toward the end of the 10h-deprivation period. Interestingly, Akt phosphorylation initially declined in response to serum deprivation and then recovered between 2 and 4h in wild-type but not REDD1 knockout cells. The recovery of mTORC1 signaling and the failure of Akt phosphorylation to do so in the REDD1 knockout cells were accompanied by a dramatic increase in caspase-3 cleavage and cell death, both of which were blocked by rapamycin. Furthermore, overexpression of constitutively active Akt rescued REDD1 knockout cells from serum deprivation induced cell death. Overall, the results implicate REDD1 as a key regulatory checkpoint that coordinates growth signaling inputs to activate pro-survival mechanisms and reduce susceptibility to cell death.
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15
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Yin XL, Zhang XH, Wu ZK, Zhao DH, Zhou YL, Yu YH, Liu TN, Fang SP, Zhou TH, Wang L, Huang J. Pulmonary hypertension risk in patients with hemoglobin h disease: low incidence and absence of correlation with splenectomy. Acta Haematol 2013; 130:153-9. [PMID: 23711936 DOI: 10.1159/000347177] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2012] [Accepted: 01/14/2013] [Indexed: 01/24/2023]
Abstract
Pulmonary hypertension (PHT) is a common complication for patients with β thalassemia intermediate (TI), especially splenectomized patients. However, the frequency and risk factors of PHT in patients with hemoglobin H (HbH) disease is unknown. The purpose of this study was to identify the prevalence of PHT risk manifested as tricuspid regurgitant jet velocity (TRV) ≥2.5 m/s in patients with HbH disease and its correlation with splenectomy. One hundred and ninety-eight patients with HbH disease who visited the 303rd Hospital of the People's Liberation Army (Nanning, China) were investigated. Thirteen subjects (6.5%) were diagnosed as having a risk of PHT. Regression analyses showed that the prevalence of PHT risk was correlated only with age (r = 0.195, p = 0.006) and not with splenectomy. The risk of PHT in patients older than 35 years was 5.7 times (range 1.8-18.6) greater than that for patients younger than 35 years. For splenectomized patients compared to those with HbH disease, patients with TI had a higher frequency of PHT risk, higher nucleated red blood cell counts (46.03 ± 41.11 × 10(9)/l vs. 0.18 ± 1.19 × 10(9)/l, p < 0.001) and a higher platelet counts (837.6 ± 178.9 × 10(9)/l vs. 506.7 ± 146.2 × 10(9)/l, p < 0.001). PHT risk is low in patients with HbH disease and does not correlate with splenectomy. Patients older than 35 years should be monitored regularly.
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Affiliation(s)
- Xiao-Lin Yin
- Department of Hematology, 303rd Hospital of the People's Liberation Army, Nanning, PR China
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16
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Atichartakarn V, Chuncharunee S, Yamwong S, Yingchoncharoen T, Jongjirasiri S, Archararit N, Udomsubpayakul U. Pulmonary artery pressure correlates directly with spleen volume in non-splenectomized hemoglobin E/β-thalassemia patients. Acta Haematol 2013; 130:172-5. [PMID: 23735784 DOI: 10.1159/000350644] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2012] [Accepted: 03/04/2013] [Indexed: 11/19/2022]
Affiliation(s)
- Vichai Atichartakarn
- Division of Hematology, Department of Medicine, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
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17
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Aksoy C, Guliyev A, Kilic E, Uckan D, Severcan F. Bone marrow mesenchymal stem cells in patients with beta thalassemia major: molecular analysis with attenuated total reflection-Fourier transform infrared spectroscopy study as a novel method. Stem Cells Dev 2012; 21:2000-11. [PMID: 22214206 DOI: 10.1089/scd.2011.0444] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Bone marrow mesenchymal stem cells (BM-MSCs) are the main cellular components of the bone marrow, providing a supportive cellular microenvironment to maintain healthy hematopoiesis. β-thalassemia major (β-TM) is characterized by anemia that is caused by a genetic defect in hemoglobin synthesis and results in ineffective erythropoiesis (IE). The alterations in the microenvironment in thalassemic bone marrow during IE can cause changes in BM-MSCs. This study aimed to investigate global structural and compositional changes in BM-MSCs in β-TM that may provide a basis in understanding interactions of hematopoietic stem cells (HSCs)-MSCs in such a pathological bone marrow microenvironment. Following characterization of morphological, immunophenotypical, and differentiation properties, the changes in healthy and thalassemic BM-MSCs before and after bone marrow transplantation (BMT) were examined by attenuated total reflection-Fourier transform infrared (ATR-FTIR). The significant increase in lipid, protein, glycogen, and nucleic acid contents in thalassemic BM-MSCs with respect to healthy BM-MSCs was attributed to enhanced cell proliferation and BM activity during IE. The significant decreases in the content of mentioned macromolecules in post-transplant group BM-MSCs versus pre-transplant BM-MSCs was interpreted as restoring effect of BMT therapy on IE and defective BM microenvironment. These alterations were also supported by ELISA results of erythropoietin (EPO) and growth differentiation factor (GDF15) in bone marrow plasma samples as a reflection of IE and by MTT proliferation assay on BM-MSCs. Based on these changes, sampling groups were discriminated by cluster analysis. These results provide information for the studies that concentrate on interactions between HSCs-MSCs in bone marrow.
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Affiliation(s)
- Ceren Aksoy
- Department of Biotechnology, Middle East Technical University, Ankara, Turkey
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18
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Proteomic analysis of Hemoglobin H-Constant Spring (Hb H-CS) erythroblasts. Blood Cells Mol Dis 2012; 48:77-85. [DOI: 10.1016/j.bcmd.2011.11.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2011] [Accepted: 11/07/2011] [Indexed: 12/31/2022]
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Molina-Arrebola MA, Avivar-Oyonarte C, Salas-Coronas J, Pérez-Moyano R, Giménez-López MJ, García-Bautista JA, Jiménez-Gila AM, Porrino-Herrera C. Practical diagnosis of red cell disorders in southern Spain. Acta Haematol 2011; 127:50-5. [PMID: 22042243 DOI: 10.1159/000331479] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2011] [Accepted: 08/03/2011] [Indexed: 11/19/2022]
Abstract
BACKGROUND Hereditary red cell disorders are associated with a protective effect against malaria, which results in an increased prevalence in malaria-endemic areas. Migratory flows from these areas are resulting in a marked increase in such abnormalities in Southern Spain. METHODS All hemoglobin disorders diagnosed between 1997 and 2010 have been recorded. Since 2008, we have performed systematic screening for hemoglobinopathies on African patients. A high-pressure liquid chromatography system was used as screening method for structural hemoglobinopathies and for separation of hemoglobin (Hb) F and A(2). RESULTS We detected 666 cases in patients of foreign origin and 308 in native Spanish patients. Thalassemias (thal) are the most frequent disorders amongst the local population: β-thal minor, 57.1% (176/308); α-thal, 18.2% (56/308), and δβ-thal, 7.8% (24/308). In ethnic minorities, there is a huge variety of hemoglobinopathies: heterozygous Hb S, 45% (300/666); heterozygous Hb C, 15% (100/666); β-thal minor, 13.7% (91/666); α-thal, 10.2% (68/666); Hb SS in 14 patients, and Hb CC in 9 patients. Of the native patients, 14 were found to have Hb AS and 9 Hb AC. CONCLUSION Given the modern migratory flows, greater knowledge of these disorders is needed by all medical staff, and new practical and cost/time-effective diagnostic approaches have to be devised.
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Affiliation(s)
- M A Molina-Arrebola
- Haematology and Haemotherapy Unit, Tropical Medicine Unit, Biotechnology Department, Poniente Hospital, El Ejido, Spain.
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20
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Kheansaard W, Panichob P, Fucharoen S, Tanyong DI. Cytokine-induced apoptosis of beta-thalassemia/hemoglobin E erythroid progenitor cells via nitric oxide-mediated process in vitro. Acta Haematol 2011; 126:224-30. [PMID: 21934298 DOI: 10.1159/000329903] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2011] [Accepted: 06/07/2011] [Indexed: 01/21/2023]
Abstract
BACKGROUND/AIM β-Thalassemia/hemoglobin E (β-thal/HbE) is a common hereditary anemia in Thailand. Ineffective erythropoiesis due to apoptosis and decreased lifespan of circulating thalassemic red blood cells are the major causes of anemia. Changes to bone marrow microenvironment could contribute to apoptotic events. This study examined the effects of cytokines interleukin-1β, tumor necrosis factor-α and interferon-γ on apoptosis of β-thal/HbE erythroid progenitor cells in vitro, including nitric oxide-mediated apoptotic processes. METHODS Percent apoptosis of erythroid progenitor cells from 5 β-thal/HbE patients and 5 normal control subjects was examined using flow cytometry. In addition, the inducible nitric oxide synthase (iNOS) mRNA level and nitrite production were measured using quantitative PCR and the Griess method, respectively. RESULTS Upon cytokine treatment, a higher percent apoptosis was obtained with β-thal/HbE erythroid progenitor cells compared with control, and the maximum effect was observed using 20 ng/ml interferon-γ on day 14 of culture. There was an increase in iNOS mRNA level and a concomitant elevation of nitrite concentration in culture medium. Apoptosis and nitrite level were abrogated when β-thal/HbE and control cells were treated with S-methylisothiourea sulfate, an iNOS inhibitor. CONCLUSION The marked sensitivity of erythroid progenitor cells from β-thal/HbE patients to cytokine-induced apoptosis via an NO-mediated process reflects a proapoptotic status of such thalassemic red blood cells.
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Affiliation(s)
- Wasinee Kheansaard
- Department of Clinical Microscopy, Faculty of Medical Technology, Mahidol University, Nakhonpathom, Thailand
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21
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Induced autophagy reduces virus output in dengue infected monocytic cells. Virology 2011; 418:74-84. [PMID: 21813150 DOI: 10.1016/j.virol.2011.07.010] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2011] [Revised: 07/03/2011] [Accepted: 07/13/2011] [Indexed: 12/16/2022]
Abstract
While several studies have shown a role for autophagy in the replication of dengue virus (DENV), these studies have been performed in directly infected cells. However, in severe cases of DENV infection the critical cell in the disease is believed to be monocytes which are poorly infected directly, but are highly susceptible to antibody enhanced infection. This study sought to determine the involvement of autophagy in the DENV infection of monocytic cells, using U937 cells as a model system. While the induction of autophagy was seen in response to DENV-2 infection, biochemical induction of autophagy resulted in a significant decrease in virus output. Down regulation of autophagy resulted in only a very slight increase in intracellular virus levels. In monocytic cells autophagy is not a significant part of the DENV replication mechanism, and there are distinct cell type specific differences in the DENV-autophagy interaction.
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Leecharoenkiat A, Wannatung T, Lithanatudom P, Svasti S, Fucharoen S, Chokchaichamnankit D, Srisomsap C, Smith DR. Increased oxidative metabolism is associated with erythroid precursor expansion in β0-thalassaemia/Hb E disease. Blood Cells Mol Dis 2011; 47:143-57. [PMID: 21783389 DOI: 10.1016/j.bcmd.2011.06.005] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2011] [Revised: 06/22/2011] [Accepted: 06/25/2011] [Indexed: 10/18/2022]
Abstract
Erythropoiesis in β0-thalassaemia/Hb E patients, the most common variant form of β-thalassaemia in Southeast Asia, is characterized by accelerated differentiation and over-expansion of erythroid precursor cells. The mechanism driving this accelerated expansion and differentiation remain unknown. To address this issue a proteomic analysis was undertaken to firstly identify proteins differentially expressed during erythroblast differentiation and a second analysis was undertaken to identify proteins differentially expressed between β0-thalassaemia/Hb E erythroblasts and control erythroblasts. The majority of proteins identified as being differentially expressed between β0-thalassaemia/Hb E and control erythroblasts were constituents of the glycolysis/TCA pathway and levels of oxidative stress correlated with the degree of erythroid expansion. A model was constructed linking these observations with previous studies showing increased phosphorylation of ERK1/2 in thalassemic erythroblasts which predicted the increased activation of PKA, PKB and PKC which Western analysis confirmed. Inhibition of PKA or PKC reduced β0-thalassaemia/Hb E erythroblast differentiation and/or expansion. We propose that increased expansion and differentiation of β0-thalassaemia/Hb E erythroblasts occur as a result of feedback loops acting through increased oxidative metabolism.
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Affiliation(s)
- Amporn Leecharoenkiat
- Molecular Pathology Laboratory, Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom, Thailand
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23
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Ponnikorn S, Panichakul T, Sresanga K, Wongborisuth C, Roytrakul S, Hongeng S, Tungpradabkul S. Phosphoproteomic analysis of apoptotic hematopoietic stem cells from hemoglobin E/β-thalassemia. J Transl Med 2011; 9:96. [PMID: 21702968 PMCID: PMC3142509 DOI: 10.1186/1479-5876-9-96] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2011] [Accepted: 06/25/2011] [Indexed: 01/20/2023] Open
Abstract
Background Hemoglobin E/β-thalassemia is particularly common in Southeast Asia and has variable symptoms ranging from mild to severe anemia. Previous investigations demonstrated the remarkable symptoms of β-thalassemia in terms of the acceleration of apoptotic cell death. Ineffective erythropoiesis has been studied in human hematopoietic stem cells, however the distinct apoptotic mechanism was unclear. Methods The phosphoproteome of bone marrow HSCs/CD34+ cells from HbE/β-thalassemic patients was analyzed using IMAC phosphoprotein isolation followed by LC-MS/MS detection. Decyder MS software was used to quantitate differentially expressed proteins in 3 patients and 2 normal donors. The differentially expressed proteins from HSCs/CD34+ cells were compared with HbE/β-thalassemia and normal HSCs. Results A significant change in abundance of 229 phosphoproteins was demonstrated. Importantly, the analysis of the candidate proteins revealed a high abundance of proteins that are commonly found in apoptotic cells including cytochrome C, caspase 6 and apoptosis inducing factors. Moreover, in the HSCs patients a significant increase was observed in a specific type of phosphoserine/threonine binding protein, which is known to act as an important signal mediator for the regulation of cell survival and apoptosis in HbE/β-thalassemia. Conclusions Our study used a novel method to investigate proteins that influence a particular pathway in a given disease or physiological condition. Ultimately, phosphoproteome profiling in HbE/β-thalassemic stem cells is an effective method to further investigate the cell death mechanism of ineffective erythropoiesis in β-thalassemia. Our report provides a comprehensive phosphoproteome, an important resource for the study of ineffective erythropoiesis and developing therapies for HbE/β-thalassemia.
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Affiliation(s)
- Saranyoo Ponnikorn
- Department of Biochemistry, Faculty of Science, Mahidol University, Bangkok, Thailand
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24
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Lithanatudom P, Wannatung T, Leecharoenkiat A, Svasti S, Fucharoen S, Smith DR. Enhanced activation of autophagy in β-thalassemia/Hb E erythroblasts during erythropoiesis. Ann Hematol 2011; 90:747-58. [PMID: 21221583 DOI: 10.1007/s00277-010-1152-5] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2010] [Accepted: 12/26/2010] [Indexed: 12/31/2022]
Abstract
Erythropoiesis in β-thalassemia patients is ineffective, primarily because of death of the erythroid progenitor cells at the polychromatic normoblast stage. While it is known that autophagy plays a critical role during erythropoiesis by removing organelles from erythroid cells during terminal differentiation, its role in erythroid cells whose function is impaired remains to be explored. To investigate this, CD34+ erythroid progenitor cells from normal controls and β-thalassemia/Hb E patients were isolated from peripheral blood and cultured under conditions driving differentiation into an erythroid lineage, and levels of autophagy and apoptosis were analyzed both directly and after biochemical manipulation with L: -asparagine. A significantly higher level of autophagy was seen in β-thalassemia/Hb E erythroblasts as compared to normal control erythroblasts during erythropoiesis. Interestingly, this activation was mediated in part by the presence of high levels of Ca(2+) as modulation of Ca(2+) levels significantly reduced the level of autophagy in these cells. Inhibition of autophagic flux in normal erythroblasts significantly increased apoptosis in normal erythroblasts, but not in thalassemic erythroblasts, although sensitivity to autophagic flux inhibition was restored by reduction of Ca(2+) levels. These results suggest that high levels of autophagy in β-thalassemia/HbE erythroblasts may contribute to the increased levels of apoptosis that lead to ineffective erythropoiesis in β-thalassemia/Hb E erythroblasts.
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Affiliation(s)
- Pathrapol Lithanatudom
- Molecular Pathology Laboratory, Institute of Molecular Biosciences, Mahidol University, Salaya Campus, 25/25 Phuttamonthon Sai 4, Salaya, Nakon Pathom, Thailand
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Klomporn P, Panyasrivanit M, Wikan N, Smith DR. Dengue infection of monocytic cells activates ER stress pathways, but apoptosis is induced through both extrinsic and intrinsic pathways. Virology 2010; 409:189-97. [PMID: 21047664 DOI: 10.1016/j.virol.2010.10.010] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2010] [Revised: 09/26/2010] [Accepted: 10/06/2010] [Indexed: 11/15/2022]
Abstract
Monocytic cells are believed to be an important mediator of the pathology of dengue disease in cases of secondary infection where pre-existing antibodies from a first infection facilitate virus entry to Fc receptor bearing cells. In this study we assessed the induction of the ER stress in response to infection of monocytic U937 cells with all four DENV serotypes as well as the induction of apoptosis. Clear evidence of ER stress and the production of pro-apoptotic signals were observed, together with activation of caspase 9. Surprisingly, caspase 8 was also activated, independently of caspase 9, and this was accompanied by an increase in the expression of TNF-α, suggesting the simultaneous but independent activation of both extrinsic and intrinsic apoptosis pathways. Both the induction of ER stress and apoptosis were shown to be serotype independent.
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Affiliation(s)
- Pathama Klomporn
- Molecular Pathology Laboratory, Institute of Molecular Biosciences, Mahidol University, Thailand
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