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Kalleda N, Flace A, Altermatt P, Ingoglia G, Doucerain C, Nyffenegger N, Dürrenberger F, Manolova V. Ferroportin inhibitor vamifeport ameliorates ineffective erythropoiesis in a mouse model of β-thalassemia with blood transfusions. Haematologica 2023; 108:2703-2714. [PMID: 37165842 PMCID: PMC10543196 DOI: 10.3324/haematol.2022.282328] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Accepted: 05/04/2023] [Indexed: 05/12/2023] Open
Abstract
β-thalassemia is an inherited anemia characterized by ineffective erythropoiesis. Blood transfusions are required for survival in transfusion-dependent β-thalassemia and are also occasionally needed in patients with non-transfusion-dependent β-thalassemia. Patients with transfusion-dependent b-thalassemia often have elevated transferrin saturation (TSAT) and non-transferrin-bound iron (NTBI) levels, which can lead to organ iron overload, oxidative stress, and vascular damage. Vamifeport is an oral ferroportin inhibitor that was previously shown to ameliorate anemia, ineffective erythropoiesis, and dysregulated iron homeostasis in the Hbbth3/+ mouse model of β-thalassemia, under non-transfused conditions. Our study aimed to assess the effects of oral vamifeport on iron-related parameters (including plasma NTBI levels) and ineffective erythropoiesis following blood transfusions in Hbbth3/+ mice. A single dose of vamifeport prevented the transient transfusion-mediated NTBI increase in Hbbth3/+ mice. Compared with vehicle treatment, vamifeport significantly increased hemoglobin levels and red blood cell counts in transfused mice. Vamifeport treatment also significantly improved ineffective erythropoiesis in the spleens of Hbbth3/+ mice, with additive effects observed when treatment was combined with repeated transfusions. Vamifeport corrected leukocyte counts and significantly improved iron-related parameters (serum transferrin, TSAT and erythropoietin levels) versus vehicle treatment in Hbbth3/+ mice, irrespective of transfusion status. In summary, vamifeport prevented transfusion-mediated NTBI formation in Hbbth3/+ mice. When given alone or combined with blood transfusions, vamifeport also ameliorated anemia, ineffective erythropoiesis, and dysregulated iron homeostasis. Administering vamifeport together with repeated blood transfusions additively ameliorated anemia and ineffective erythropoiesis in this mouse model, providing preclinical proof-of-concept for the efficacy of combining vamifeport with blood transfusions in β-thalassemia.
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Affiliation(s)
| | - Anna Flace
- Research and Non-clinical Development, CSL Vifor, St. Gallen
| | | | - Giada Ingoglia
- Research and Non-clinical Development, CSL Vifor, St. Gallen
| | | | | | | | - Vania Manolova
- Research and Non-clinical Development, CSL Vifor, St. Gallen
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2
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Siriworadetkun S, Thiengtavor C, Thubthed R, Paiboonsukwong K, Fucharoen S, Pattanapanyasat K, Vadolas J, Svasti S, Chaichompoo P. A comprehensive study of immune function and immunophenotyping of white blood cells from β-thalassaemia/HbE patients on hydroxyurea supports the safety of the drug. Br J Haematol 2023; 200:367-376. [PMID: 36221231 DOI: 10.1111/bjh.18508] [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: 06/16/2022] [Revised: 09/26/2022] [Accepted: 09/28/2022] [Indexed: 01/21/2023]
Abstract
Hydroxyurea (HU) (hydroxycarbamide) is used as a therapeutic option in β-thalassaemia to increase fetal haemoglobin, which results in a reduced requirement for blood transfusion. However, a potential serious adverse effect of HU is neutropenia. Abnormal neutrophil maturation and function in β-thalassaemia/HbE patients are well documented. This raises questions about the effect of the drug with regards to the immune response these patients. This study investigated the effects of HU treatment on both innate and adaptive immunity in a cross-sectional study of 28 β-thalassaemia/HbE patients who had received HU treatment (BE+HU) as compared with 22 β-thalassaemia/HbE patients who had not received HU (BE-HU) and 26 normal subjects. The expression of PU.1 and C/EBPβ, transcription factors, which are associated with neutrophil maturation, was significantly reduced in BE+HU patients as compared with BE-HU patients and normal subjects. Interestingly, C3bR expression on neutrophils and their oxidative burst activity in BE+HU were restored to close to normal levels when compared with BE-HU. There was no observed effect of HU on monocytes, myeloid derived suppressor cells (both granulocytic and monocytic subsets), CD4+ T cells, CD8+ T cells, complement levels and serum immunoglobulin levels in this study. The full immunophenotyping analysis in this study indicates that HU therapy in β-thalassaemia/HbE patients does not significantly compromise the immune response.
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Affiliation(s)
- Sirikwan Siriworadetkun
- Thalassemia Research Center, Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom, Thailand.,Department of Pathobiology, Faculty of Science, Mahidol University, Bangkok, Thailand
| | - Chayada Thiengtavor
- Department of Pathobiology, Faculty of Science, Mahidol University, Bangkok, Thailand.,Faculty of Optometry, Ramkhamhaeng University, Bangkok, Thailand
| | - Rattanawan Thubthed
- Department of Pathobiology, Faculty of Science, Mahidol University, Bangkok, Thailand
| | - Kittiphong Paiboonsukwong
- Thalassemia Research Center, Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom, Thailand
| | - Suthat Fucharoen
- Thalassemia Research Center, Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom, Thailand
| | - Kovit Pattanapanyasat
- Siriraj Centre of Research Excellence for Microparticle and Exosome in Diseases, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Jim Vadolas
- Centre for Cancer Research, Hudson Institute of Medical Research, Melbourne, Australia.,Department of Molecular and Translational Science, Monash University, Melbourne, Australia
| | - Saovaros Svasti
- Thalassemia Research Center, Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom, Thailand.,Department of Biochemistry, Faculty of Science, Mahidol University, Bangkok, Thailand
| | - Pornthip Chaichompoo
- Department of Pathobiology, Faculty of Science, Mahidol University, Bangkok, Thailand
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3
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Davidson C, Wordsworth BP, Cohen CJ, Knight JC, Vecellio M. Chromosome conformation capture approaches to investigate 3D genome architecture in Ankylosing Spondylitis. Front Genet 2023; 14:1129207. [PMID: 36760998 PMCID: PMC9905691 DOI: 10.3389/fgene.2023.1129207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Accepted: 01/16/2023] [Indexed: 01/26/2023] Open
Abstract
Ankylosing Spondylitis (AS) is a chronic inflammatory arthritis of the spine exhibiting a strong genetic background. The mechanistic and functional understanding of the AS-associated genomic loci, identified with Genome Wide Association Studies (GWAS), remains challenging. Chromosome conformation capture (3C) and derivatives are recent techniques which are of great help in elucidating the spatial genome organization and of enormous support in uncover a mechanistic explanation for disease-associated genetic variants. The perturbation of three-dimensional (3D) genome hierarchy may lead to a plethora of human diseases, including rheumatological disorders. Here we illustrate the latest approaches and related findings on the field of genome organization, highlighting how the instability of 3D genome conformation may be among the causes of rheumatological disease phenotypes. We suggest a new perspective on the inclusive potential of a 3C approach to inform GWAS results in rheumatic diseases. 3D genome organization may ultimately lead to a more precise and comprehensive functional interpretation of AS association, which is the starting point for emerging and more specific therapies.
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Affiliation(s)
- Connor Davidson
- Wellcome Centre of Human Genetics, University of Oxford, Oxford, United Kingdom
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, Botnar Research Centre, University of Oxford, Oxford, United Kingdom
| | - B. Paul Wordsworth
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, Botnar Research Centre, University of Oxford, Oxford, United Kingdom
| | - Carla J. Cohen
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, Botnar Research Centre, University of Oxford, Oxford, United Kingdom
- MRC WIMM Centre for Computational Biology, MRC Weatherall Institute for Molecular Medicine, University of Oxford, Oxford, United Kingdom
| | - Julian C. Knight
- Wellcome Centre of Human Genetics, University of Oxford, Oxford, United Kingdom
| | - Matteo Vecellio
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, Botnar Research Centre, University of Oxford, Oxford, United Kingdom
- Centro Ricerche Fondazione Italiana Ricerca Sull’Artrite (FIRA), Fondazione Pisana x la Scienza ONLUS, San Giuliano Terme, Italy
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4
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Pellegrino C, Dragonetti G, Chiusolo P, Rossi M, Orlando N, Teofili L. Acute Promyelocytic Leukemia in a Woman with Thalassemia Intermedia: Case Report and Review of Literature on Hematological Malignancies in β-Thalassemia Patients. Hematol Rep 2022; 14:310-321. [PMID: 36278522 PMCID: PMC9590045 DOI: 10.3390/hematolrep14040045] [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: 05/19/2022] [Revised: 10/01/2022] [Accepted: 10/17/2022] [Indexed: 11/04/2022] Open
Abstract
Patients affected by transfusion-dependent β-thalassemia are prone to developing several clinical complications, mostly related to the iron overload. We report the case of a patient affected by transfusion-dependent β-thalassemia (TDT) developing acute promyelocytic leukemia (APL). In our case, the therapeutic management was significantly complicated not only by myocardial dysfunction, but also by the occurrence of the differentiation syndrome following all-trans retinoic acid (ATRA) administration. We carried out a careful revision of the current literature on the occurrence of hematological malignancies in β-thalassemia patients to investigate the major complications so far described. APL occurrence in β-thalassemia patients has been very rarely reported, and our experience suggests that TDT patients suffering pre-existing comorbidities may develop a potentially fatal complication during ATRA therapy.
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Affiliation(s)
- Claudio Pellegrino
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, Fondazione Policlinico Universitario “A. Gemelli” IRCCS, I-00168 Roma, Italy
- Sezione di Ematologia, Dipartimento di Scienze Radiologiche ed Ematologiche, Università Cattolica del Sacro Cuore, I-00168 Rome, Italy
- Correspondence: ; Tel.: +06-30156016
| | - Giulia Dragonetti
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, Fondazione Policlinico Universitario “A. Gemelli” IRCCS, I-00168 Roma, Italy
| | - Patrizia Chiusolo
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, Fondazione Policlinico Universitario “A. Gemelli” IRCCS, I-00168 Roma, Italy
- Sezione di Ematologia, Dipartimento di Scienze Radiologiche ed Ematologiche, Università Cattolica del Sacro Cuore, I-00168 Rome, Italy
| | - Monica Rossi
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, Fondazione Policlinico Universitario “A. Gemelli” IRCCS, I-00168 Roma, Italy
| | - Nicoletta Orlando
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, Fondazione Policlinico Universitario “A. Gemelli” IRCCS, I-00168 Roma, Italy
| | - Luciana Teofili
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, Fondazione Policlinico Universitario “A. Gemelli” IRCCS, I-00168 Roma, Italy
- Sezione di Ematologia, Dipartimento di Scienze Radiologiche ed Ematologiche, Università Cattolica del Sacro Cuore, I-00168 Rome, Italy
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5
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Aprile A, Sighinolfi S, Raggi L, Ferrari G. Targeting the Hematopoietic Stem Cell Niche in β-Thalassemia and Sickle Cell Disease. Pharmaceuticals (Basel) 2022; 15:ph15050592. [PMID: 35631417 PMCID: PMC9146437 DOI: 10.3390/ph15050592] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 04/27/2022] [Accepted: 05/05/2022] [Indexed: 01/19/2023] Open
Abstract
In the last decade, research on pathophysiology and therapeutic solutions for β-thalassemia (BThal) and sickle cell disease (SCD) has been mostly focused on the primary erythroid defect, thus neglecting the study of hematopoietic stem cells (HSCs) and bone marrow (BM) microenvironment. The quality and engraftment of HSCs depend on the BM microenvironment, influencing the outcome of HSC transplantation (HSCT) both in allogeneic and in autologous gene therapy settings. In BThal and SCD, the consequences of severe anemia alter erythropoiesis and cause chronic stress in different organs, including the BM. Here, we discuss the recent findings that highlighted multiple alterations of the BM niche in BThal and SCD. We point out the importance of improving our understanding of HSC biology, the status of the BM niche, and their functional crosstalk in these disorders towards the novel concept of combined therapies by not only targeting the genetic defect, but also key players of the HSC–niche interaction in order to improve the clinical outcomes of transplantation.
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Affiliation(s)
- Annamaria Aprile
- San Raffaele-Telethon Institute for Gene Therapy (SR-TIGET), IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy; (S.S.); (L.R.)
- Correspondence: (A.A.); (G.F.)
| | - Silvia Sighinolfi
- San Raffaele-Telethon Institute for Gene Therapy (SR-TIGET), IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy; (S.S.); (L.R.)
- Vita-Salute San Raffaele University, 20132 Milan, Italy
| | - Laura Raggi
- San Raffaele-Telethon Institute for Gene Therapy (SR-TIGET), IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy; (S.S.); (L.R.)
- University of Milano Bicocca, 20126 Milan, Italy
| | - Giuliana Ferrari
- San Raffaele-Telethon Institute for Gene Therapy (SR-TIGET), IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy; (S.S.); (L.R.)
- Vita-Salute San Raffaele University, 20132 Milan, Italy
- Correspondence: (A.A.); (G.F.)
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6
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Thubthed R, Siriworadetkun S, Paiboonsukwong K, Fucharoen S, Pattanapanyasat K, Vadolas J, Svasti S, Chaichompoo P. Impaired neutrophil extracellular trap formation in β-thalassaemia/HbE. Sci Rep 2022; 12:1967. [PMID: 35121800 PMCID: PMC8816948 DOI: 10.1038/s41598-022-06036-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2021] [Accepted: 01/19/2022] [Indexed: 11/16/2022] Open
Abstract
Neutrophil dysfunction contributes to a high susceptibility to severe bacterial infection which is a leading cause of morbidity and mortality in β-thalassaemia/HbE, especially in splenectomised patients. This study demonstrated another abnormality of neutrophil function, namely neutrophil extracellular trap (NET) formation in splenectomised and non-splenectomised β-thalassaemia/HbE patients who had iron overload. A classification system of morphological NET formation using confocal microscopy was developed, and samples were categorized into early and late phases which were subdivided into web-like and non-web structures. At baseline, neutrophils from non-splenectomised patients (58 ± 4%) and splenectomised patients (65 ± 3%) had higher early phase NETs than those from normal subjects (33 ± 1%). As a mimic of iron overload and infection, haemin/PMA/LPS treatment led to a significant reduction of early NETs and an increase of late NETs in neutrophils from normal and non-splenectomised patients. Interestingly, neutrophils from splenectomised patients had impaired development of late NETs. This suggests that during infection bacteria might not be trapped and may spread from the site of infection resulting in higher susceptibility to severe bacterial infection in splenectomised patients.
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Affiliation(s)
- Rattanawan Thubthed
- Department of Pathobiology, Faculty of Science, Mahidol University, Bangkok, Thailand
| | - Sirikwan Siriworadetkun
- Department of Pathobiology, Faculty of Science, Mahidol University, Bangkok, Thailand.,Thalassemia Research Center, Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom, Thailand
| | - Kittiphong Paiboonsukwong
- Thalassemia Research Center, Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom, Thailand
| | - Suthat Fucharoen
- Thalassemia Research Center, Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom, Thailand
| | - Kovit Pattanapanyasat
- Siriraj Center of Research Excellence for Microparticle and Exosome in Diseases, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Jim Vadolas
- Centre for Cancer Research, Hudson Institute of Medical Research, Melbourne, Australia.,Department of Molecular and Translational Science, Monash University, Melbourne, Australia
| | - Saovaros Svasti
- Thalassemia Research Center, Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom, Thailand.,Department of Biochemistry, Faculty of Science, Mahidol University, Bangkok, Thailand
| | - Pornthip Chaichompoo
- Department of Pathobiology, Faculty of Science, Mahidol University, Bangkok, Thailand.
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7
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Gluba-Brzózka A, Franczyk B, Rysz-Górzyńska M, Rokicki R, Koziarska-Rościszewska M, Rysz J. Pathomechanisms of Immunological Disturbances in β-Thalassemia. Int J Mol Sci 2021; 22:ijms22189677. [PMID: 34575839 PMCID: PMC8469188 DOI: 10.3390/ijms22189677] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 08/25/2021] [Accepted: 08/25/2021] [Indexed: 01/19/2023] Open
Abstract
Thalassemia, a chronic disease with chronic anemia, is caused by mutations in the β-globin gene, leading to reduced levels or complete deficiency of β-globin chain synthesis. Patients with β-thalassemia display variable clinical severity which ranges from asymptomatic features to severe transfusion-dependent anemia and complications in multiple organs. They not only are at increased risk of blood-borne infections resulting from multiple transfusions, but they also show enhanced susceptibility to infections as a consequence of coexistent immune deficiency. Enhanced susceptibility to infections in β-thalassemia patients is associated with the interplay of several complex biological processes. β-thalassemia-related abnormalities of the innate immune system include decreased levels of complement, properdin, and lysozyme, reduced absorption and phagocytic ability of polymorphonuclear neutrophils, disturbed chemotaxis, and altered intracellular metabolism processes. According to available literature data, immunological abnormalities observed in patients with thalassemia can be caused by both the disease itself as well as therapies. The most important factors promoting such alterations involve iron overload, phenotypical and functional abnormalities of immune system cells resulting from chronic inflammation oxidative stress, multiple blood transfusion, iron chelation therapy, and splenectomy. Unravelling the mechanisms underlying immune deficiency in β-thalassemia patients may enable the designing of appropriate therapies for this group of patients.
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Affiliation(s)
- Anna Gluba-Brzózka
- Department of Nephrology, Hypertension and Family Medicine, Medical University of Lodz, 90-549 Lodz, Poland; (B.F.); (M.K.-R.); (J.R.)
- Correspondence: or ; Tel.: +48-42-639-3750
| | - Beata Franczyk
- Department of Nephrology, Hypertension and Family Medicine, Medical University of Lodz, 90-549 Lodz, Poland; (B.F.); (M.K.-R.); (J.R.)
| | - Magdalena Rysz-Górzyńska
- Department of Ophthalmology and Visual Rehabilitation, Medical University of Lodz, 90-549 Lodz, Poland;
| | - Robert Rokicki
- Clinic of Hand Surgery, Medical University of Lodz, 90-549 Lodz, Poland;
| | - Małgorzata Koziarska-Rościszewska
- Department of Nephrology, Hypertension and Family Medicine, Medical University of Lodz, 90-549 Lodz, Poland; (B.F.); (M.K.-R.); (J.R.)
| | - Jacek Rysz
- Department of Nephrology, Hypertension and Family Medicine, Medical University of Lodz, 90-549 Lodz, Poland; (B.F.); (M.K.-R.); (J.R.)
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8
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Gao S, Wang Z, Wang L, Wang H, Yuan H, Liu X, Chen S, Chen Z, de Thé H, Zhang W, Zhang Y, Zhu J, Zhou J. Irf2bp2a regulates terminal granulopoiesis through proteasomal degradation of Gfi1aa in zebrafish. PLoS Genet 2021; 17:e1009693. [PMID: 34351909 PMCID: PMC8370619 DOI: 10.1371/journal.pgen.1009693] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 08/17/2021] [Accepted: 07/02/2021] [Indexed: 11/19/2022] Open
Abstract
The ubiquitin-proteasome system plays important roles in various biological processes as it degrades the majority of cellular proteins. Adequate proteasomal degradation of crucial transcription regulators ensures the proper development of neutrophils. The ubiquitin E3 ligase of Growth factor independent 1 (GFI1), a key transcription repressor governing terminal granulopoiesis, remains obscure. Here we report that the deficiency of the ring finger protein Interferon regulatory factor 2 binding protein 2a (Irf2bp2a) leads to an impairment of neutrophils differentiation in zebrafish. Mechanistically, Irf2bp2a functions as a ubiquitin E3 ligase targeting Gfi1aa for proteasomal degradation. Moreover, irf2bp2a gene is repressed by Gfi1aa, thus forming a negative feedback loop between Irf2bp2a and Gfi1aa during neutrophils maturation. Different levels of GFI1 may turn it into a tumor suppressor or an oncogene in malignant myelopoiesis. Therefore, discovery of certain drug targets GFI1 for proteasomal degradation by IRF2BP2 might be an effective anti-cancer strategy.
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Affiliation(s)
- Shuo Gao
- Shanghai Institute of Hematology, CNRS-LIA Hematology and Cancer, Sino-French Research Center for Life Sciences and Genomics, State Key Laboratory of Medical Genomics, Rui Jin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
| | - Zixuan Wang
- Shanghai Institute of Hematology, CNRS-LIA Hematology and Cancer, Sino-French Research Center for Life Sciences and Genomics, State Key Laboratory of Medical Genomics, Rui Jin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
| | - Luxiang Wang
- Shanghai Institute of Hematology, CNRS-LIA Hematology and Cancer, Sino-French Research Center for Life Sciences and Genomics, State Key Laboratory of Medical Genomics, Rui Jin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
- Department of hematology, Shanghai General Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
| | - Haihong Wang
- Shanghai Institute of Hematology, CNRS-LIA Hematology and Cancer, Sino-French Research Center for Life Sciences and Genomics, State Key Laboratory of Medical Genomics, Rui Jin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
| | - Hao Yuan
- Shanghai Institute of Hematology, CNRS-LIA Hematology and Cancer, Sino-French Research Center for Life Sciences and Genomics, State Key Laboratory of Medical Genomics, Rui Jin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
| | - Xiaohui Liu
- Shanghai Institute of Hematology, CNRS-LIA Hematology and Cancer, Sino-French Research Center for Life Sciences and Genomics, State Key Laboratory of Medical Genomics, Rui Jin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
| | - Saijuan Chen
- Shanghai Institute of Hematology, CNRS-LIA Hematology and Cancer, Sino-French Research Center for Life Sciences and Genomics, State Key Laboratory of Medical Genomics, Rui Jin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
| | - Zhu Chen
- Shanghai Institute of Hematology, CNRS-LIA Hematology and Cancer, Sino-French Research Center for Life Sciences and Genomics, State Key Laboratory of Medical Genomics, Rui Jin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
| | - Hugues de Thé
- Shanghai Institute of Hematology, CNRS-LIA Hematology and Cancer, Sino-French Research Center for Life Sciences and Genomics, State Key Laboratory of Medical Genomics, Rui Jin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
- Université de Paris 7/INSERM/CNRS UMR 944/7212, Equipe Labellisée No. 11 Ligue Nationale Contre le Cancer, Hôpital St. Louis, Paris, France
| | - Wenqing Zhang
- Division of Cell, Developmental and Integrative Biology, School of Medicine, South China University of Technology, Guangzhou, P.R. China
| | - Yiyue Zhang
- Division of Cell, Developmental and Integrative Biology, School of Medicine, South China University of Technology, Guangzhou, P.R. China
- * E-mail: (YZ); (JZ); (JZ)
| | - Jun Zhu
- Shanghai Institute of Hematology, CNRS-LIA Hematology and Cancer, Sino-French Research Center for Life Sciences and Genomics, State Key Laboratory of Medical Genomics, Rui Jin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
- Université de Paris 7/INSERM/CNRS UMR 944/7212, Equipe Labellisée No. 11 Ligue Nationale Contre le Cancer, Hôpital St. Louis, Paris, France
- * E-mail: (YZ); (JZ); (JZ)
| | - Jun Zhou
- Shanghai Institute of Hematology, CNRS-LIA Hematology and Cancer, Sino-French Research Center for Life Sciences and Genomics, State Key Laboratory of Medical Genomics, Rui Jin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
- * E-mail: (YZ); (JZ); (JZ)
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9
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Increased susceptibility to dextran sulfate-induced mucositis of iron-overload β-thalassemia mice, another endogenous cause of septicemia in thalassemia. Clin Sci (Lond) 2021; 135:1467-1486. [PMID: 34131711 PMCID: PMC8209035 DOI: 10.1042/cs20210328] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 05/27/2021] [Accepted: 06/08/2021] [Indexed: 12/28/2022]
Abstract
Enterocyte damage and gut dysbiosis are caused by iron-overload in thalassemia (Thl), possibly making the gut vulnerable to additional injury. Hence, iron-overload in the heterozygous β-globin deficient (Hbbth3/+) mice were tested with 3% dextran sulfate solution (DSS). With 4 months of iron-gavage, iron accumulation, gut-leakage (fluorescein isothiocyanate dextran (FITC-dextran), endotoxemia, and tight junction injury) in Thl mice were more prominent than WT mice. Additionally, DSS-induced mucositis in iron-overloaded mice from Thl group was also more severe than the WT group as indicated by mortality, liver enzyme, colon injury (histology and tissue cytokines), serum cytokines, and gut-leakage (FITC-dextran, endotoxemia, bacteremia, and the detection of Green-Fluorescent Producing Escherichia coli in the internal organs after an oral administration). However, Lactobacillus rhamnosus GG attenuated the disease severity of DSS in iron-overloaded Thl mice as indicated by mortality, cytokines (colon tissue and serum), gut-leakage (FITC-dextran, endotoxemia, and bacteremia) and fecal dysbiosis (microbiome analysis). Likewise, Lactobacillus conditioned media (LCM) decreased inflammation (supernatant IL-8 and cell expression of TLR-4, nuclear factor κB (NFκB), and cyclooxygenase-2 (COX-2)) and increased transepithelial electrical resistance (TEER) in enterocytes (Caco-2 cells) stimulated by lipopolysaccharide (LPS) and LPS plus ferric ion. In conclusion, in the case of iron-overloaded Thl, there was a pre-existing intestinal injury that wask more vulnerable to DSS-induced bacteremia (gut translocation). Hence, the prevention of gut-derived bacteremia and the monitoring on gut-leakage might be beneficial in patients with thalassemia.
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10
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Vadolas J, Ng GZ, Kysenius K, Crouch PJ, Dames S, Eisermann M, Nualkaew T, Vilcassim S, Schaeper U, Grigoriadis G. SLN124, a GalNac-siRNA targeting transmembrane serine protease 6, in combination with deferiprone therapy reduces ineffective erythropoiesis and hepatic iron-overload in a mouse model of β-thalassaemia. Br J Haematol 2021; 194:200-210. [PMID: 33942901 PMCID: PMC8359948 DOI: 10.1111/bjh.17428] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Accepted: 03/02/2021] [Indexed: 02/06/2023]
Abstract
Beta‐thalassaemia is an inherited blood disorder characterised by ineffective erythropoiesis and anaemia. Consequently, hepcidin expression is reduced resulting in increased iron absorption and primary iron overload. Hepcidin is under the negative control of transmembrane serine protease 6 (TMPRSS6) via cleavage of haemojuvelin (HJV), a co‐receptor for the bone morphogenetic protein (BMP)‐mothers against decapentaplegic homologue (SMAD) signalling pathway. Considering the central role of the TMPRSS6/HJV/hepcidin axis in iron homeostasis, the inhibition of TMPRSS6 expression represents a promising therapeutic strategy to increase hepcidin production and ameliorate anaemia and iron overload in β‐thalassaemia. In the present study, we investigated a small interfering RNA (siRNA) conjugate optimised for hepatic targeting of Tmprss6 (SLN124) in β‐thalassaemia mice (Hbbth3/+). Two subcutaneous injections of SLN124 (3 mg/kg) were sufficient to normalise hepcidin expression and reduce anaemia. We also observed a significant improvement in erythroid maturation, which was associated with a significant reduction in splenomegaly. Treatment with the iron chelator, deferiprone (DFP), did not impact any of the erythroid parameters. However, the combination of SLN124 with DFP was more effective in reducing hepatic iron overload than either treatment alone. Collectively, we show that the combination therapy can ameliorate several disease symptoms associated with chronic anaemia and iron overload, and therefore represents a promising pharmacological modality for the treatment of β‐thalassaemia and related disorders.
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Affiliation(s)
- Jim Vadolas
- Department of Molecular and Translational Sciences, Monash University, Clayton, VIC, Australia.,Centre for Cancer Research, Hudson Institute of Medical Research, Clayton, VIC, Australia
| | - Garrett Z Ng
- Department of Biochemistry and Molecular Biology, Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Parkville, Australia
| | - Kai Kysenius
- Department of Pharmacology and Therapeutics, Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Melbourne, VIC, Australia
| | - Peter J Crouch
- Department of Pharmacology and Therapeutics, Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Melbourne, VIC, Australia
| | | | | | - Tiwaporn Nualkaew
- Centre for Cancer Research, Hudson Institute of Medical Research, Clayton, VIC, Australia
| | - Shahla Vilcassim
- School of Clinical Sciences at Monash Health, Monash University, Clayton, VIC, Australia
| | | | - George Grigoriadis
- Centre for Cancer Research, Hudson Institute of Medical Research, Clayton, VIC, Australia.,School of Clinical Sciences at Monash Health, Monash University, Clayton, VIC, Australia
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11
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Watt S, Vasquez L, Walter K, Mann AL, Kundu K, Chen L, Sims Y, Ecker S, Burden F, Farrow S, Farr B, Iotchkova V, Elding H, Mead D, Tardaguila M, Ponstingl H, Richardson D, Datta A, Flicek P, Clarke L, Downes K, Pastinen T, Fraser P, Frontini M, Javierre BM, Spivakov M, Soranzo N. Genetic perturbation of PU.1 binding and chromatin looping at neutrophil enhancers associates with autoimmune disease. Nat Commun 2021; 12:2298. [PMID: 33863903 PMCID: PMC8052402 DOI: 10.1038/s41467-021-22548-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Accepted: 03/17/2021] [Indexed: 02/06/2023] Open
Abstract
Neutrophils play fundamental roles in innate immune response, shape adaptive immunity, and are a potentially causal cell type underpinning genetic associations with immune system traits and diseases. Here, we profile the binding of myeloid master regulator PU.1 in primary neutrophils across nearly a hundred volunteers. We show that variants associated with differential PU.1 binding underlie genetically-driven differences in cell count and susceptibility to autoimmune and inflammatory diseases. We integrate these results with other multi-individual genomic readouts, revealing coordinated effects of PU.1 binding variants on the local chromatin state, enhancer-promoter contacts and downstream gene expression, and providing a functional interpretation for 27 genes underlying immune traits. Collectively, these results demonstrate the functional role of PU.1 and its target enhancers in neutrophil transcriptional control and immune disease susceptibility.
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Affiliation(s)
- Stephen Watt
- Human Genetics, Wellcome Sanger Institute, Genome Campus, Hinxton, UK
| | - Louella Vasquez
- Human Genetics, Wellcome Sanger Institute, Genome Campus, Hinxton, UK
| | - Klaudia Walter
- Human Genetics, Wellcome Sanger Institute, Genome Campus, Hinxton, UK
| | - Alice L Mann
- Human Genetics, Wellcome Sanger Institute, Genome Campus, Hinxton, UK
| | - Kousik Kundu
- Human Genetics, Wellcome Sanger Institute, Genome Campus, Hinxton, UK
- School of Clinical Medicine, University of Cambridge, Cambridge, UK
| | - Lu Chen
- Human Genetics, Wellcome Sanger Institute, Genome Campus, Hinxton, UK
- School of Clinical Medicine, University of Cambridge, Cambridge, UK
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Department of Laboratory Medicine, West China Second University Hospital, State Key Laboratory of Biotherapy, Sichuan University, Chengdu, China
| | - Ying Sims
- Human Genetics, Wellcome Sanger Institute, Genome Campus, Hinxton, UK
| | | | - Frances Burden
- Department of Haematology, University of Cambridge, Cambridge, UK
- National Health Service Blood and Transplant (NHSBT), Cambridge, UK
| | - Samantha Farrow
- Department of Haematology, University of Cambridge, Cambridge, UK
- National Health Service Blood and Transplant (NHSBT), Cambridge, UK
| | - Ben Farr
- Human Genetics, Wellcome Sanger Institute, Genome Campus, Hinxton, UK
| | - Valentina Iotchkova
- Human Genetics, Wellcome Sanger Institute, Genome Campus, Hinxton, UK
- European Molecular Biology Laboratory, European Bioinformatics Institute, Hinxton, Cambridge, UK
- MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, John Radcliffe Hospital, Headington, Oxford, UK
| | - Heather Elding
- Human Genetics, Wellcome Sanger Institute, Genome Campus, Hinxton, UK
| | - Daniel Mead
- Human Genetics, Wellcome Sanger Institute, Genome Campus, Hinxton, UK
| | - Manuel Tardaguila
- Human Genetics, Wellcome Sanger Institute, Genome Campus, Hinxton, UK
| | - Hannes Ponstingl
- Human Genetics, Wellcome Sanger Institute, Genome Campus, Hinxton, UK
| | - David Richardson
- European Molecular Biology Laboratory, European Bioinformatics Institute, Hinxton, Cambridge, UK
| | - Avik Datta
- European Molecular Biology Laboratory, European Bioinformatics Institute, Hinxton, Cambridge, UK
| | - Paul Flicek
- European Molecular Biology Laboratory, European Bioinformatics Institute, Hinxton, Cambridge, UK
| | - Laura Clarke
- European Molecular Biology Laboratory, European Bioinformatics Institute, Hinxton, Cambridge, UK
| | - Kate Downes
- Department of Haematology, University of Cambridge, Cambridge, UK
- National Health Service Blood and Transplant (NHSBT), Cambridge, UK
| | - Tomi Pastinen
- Center for Pediatric Genomic Medicine, Children's Mercy, Kansas City, MO, USA
| | - Peter Fraser
- Nuclear Dynamics Programme, Babraham Institute, Cambridge, UK
- Department of Biological Science, Florida State University, Tallahassee, FL, USA
| | - Mattia Frontini
- Department of Haematology, University of Cambridge, Cambridge, UK
- National Health Service Blood and Transplant (NHSBT), Cambridge, UK
- British Heart Foundation Centre of Excellence, Division of Cardiovascular Medicine, Addenbrooke's Hospital, Cambridge, UK
- Institute of Biomedical & Clinical Science, College of Medicine and Health, University of Exeter Medical School, RILD Building, Exeter, UK
| | - Biola-Maria Javierre
- Nuclear Dynamics Programme, Babraham Institute, Cambridge, UK.
- Josep Carreras Leukaemia Research Institute, Badalona, Barcelona, Spain.
| | - Mikhail Spivakov
- Nuclear Dynamics Programme, Babraham Institute, Cambridge, UK.
- Functional Gene Control Group, MRC London Institute of Medical Sciences (LMS), London, UK.
- Institute of Clinical Sciences, Imperial College Faculty of Medicine, London, UK.
| | - Nicole Soranzo
- Human Genetics, Wellcome Sanger Institute, Genome Campus, Hinxton, UK.
- School of Clinical Medicine, University of Cambridge, Cambridge, UK.
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12
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Yang Y, Kang X, Hu S, Chen B, Xie Y, Song B, Zhang Q, Wu H, Ou Z, Xian Y, Fan Y, Li X, Lai L, Sun X. CRISPR/Cas9-mediated β-globin gene knockout in rabbits recapitulates human β-thalassemia. J Biol Chem 2021; 296:100464. [PMID: 33639162 PMCID: PMC8024976 DOI: 10.1016/j.jbc.2021.100464] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 02/09/2021] [Accepted: 02/23/2021] [Indexed: 01/19/2023] Open
Abstract
β-thalassemia, an autosomal recessive blood disorder that reduces the production of hemoglobin, is majorly caused by the point mutation of the HBB gene resulting in reduced or absent β-globin chains of the hemoglobin tetramer. Animal models recapitulating both the phenotype and genotype of human disease are valuable in the exploration of pathophysiology and for in vivo evaluation of novel therapeutic treatments. The docile temperament, short vital cycles, and low cost of rabbits make them an attractive animal model. However, β-thalassemia rabbit models are currently unavailable. Here, using CRISPR/Cas9-mediated genome editing, we point mutated the rabbit β-globin gene HBB2 with high efficiency and generated a β-thalassemia rabbit model. Hematological and histological analyses demonstrated that the genotypic mosaic F0 displayed a mild phenotype of anemia, and the heterozygous F1 exhibited typical characteristics of β-thalassemia. Whole-blood transcriptome analysis revealed that the gene expression was altered in HBB2-targeted when compared with WT rabbits. And the highly expressed genes in HBB2-targeted rabbits were enriched in lipid and iron metabolism, innate immunity, and hematopoietic processes. In conclusion, using CRISPR-mediated HBB2 knockout, we have created a β-thalassemia rabbit model that accurately recapitulates the human disease phenotype. We believe this tool will be valuable in advancing the investigation of pathogenesis and novel therapeutic targets of β-thalassemia and associated complications.
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Affiliation(s)
- Yi Yang
- Department of Obstetrics and Gynecology, Key Laboratory for Major Obstetric Diseases of Guangdong Province, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Xiangjin Kang
- Department of Obstetrics and Gynecology, Key Laboratory for Major Obstetric Diseases of Guangdong Province, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Shiqi Hu
- Department of Obstetrics and Gynecology, Key Laboratory for Major Obstetric Diseases of Guangdong Province, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Bangzhu Chen
- Department of Obstetrics and Gynecology, Key Laboratory for Major Obstetric Diseases of Guangdong Province, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Yingjun Xie
- Department of Obstetrics and Gynecology, Key Laboratory for Major Obstetric Diseases of Guangdong Province, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Bing Song
- Department of Obstetrics and Gynecology, Key Laboratory for Major Obstetric Diseases of Guangdong Province, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Quanjun Zhang
- CAS Key Laboratory of Regenerative Biology, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - Han Wu
- CAS Key Laboratory of Regenerative Biology, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - Zhanhui Ou
- Department of Obstetrics and Gynecology, Key Laboratory for Major Obstetric Diseases of Guangdong Province, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Yexing Xian
- Department of Obstetrics and Gynecology, Key Laboratory for Major Obstetric Diseases of Guangdong Province, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Yong Fan
- Department of Obstetrics and Gynecology, Key Laboratory for Major Obstetric Diseases of Guangdong Province, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Xiaoping Li
- Key Laboratory for Stem Cells and Tissue Engineering, Center for Stem Cell Biology and Tissue Engineering, Zhongshan Medical School, Sun Yat-Sen University, Ministry of Education, Guangzhou, China.
| | - Liangxue Lai
- CAS Key Laboratory of Regenerative Biology, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.
| | - Xiaofang Sun
- Department of Obstetrics and Gynecology, Key Laboratory for Major Obstetric Diseases of Guangdong Province, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China.
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13
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Sae-Khow K, Charoensappakit A, Visitchanakun P, Saisorn W, Svasti S, Fucharoen S, Leelahavanichkul A. Pathogen-Associated Molecules from Gut Translocation Enhance Severity of Cecal Ligation and Puncture Sepsis in Iron-Overload β-Thalassemia Mice. J Inflamm Res 2020; 13:719-735. [PMID: 33116751 PMCID: PMC7569041 DOI: 10.2147/jir.s273329] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Accepted: 09/12/2020] [Indexed: 12/15/2022] Open
Abstract
Introduction Systemic inflammation induced by gut translocation of lipopolysaccharide (LPS), a major component of Gram-negative bacteria, in thalassemia with iron-overload worsens sepsis. However, the impact of (1→3)-β-D-glucan (BG), a major fungal molecule, in iron-overload thalassemia is still unclear. Hence, the influence of BG was explored in 1) iron-overload mice with sepsis induced by cecal ligation and puncture (CLP) surgery; and 2) in bone marrow-derived macrophages (BMMs). Methods The heterozygous β-globin-deficient mice, Hbbth3/+ mice, were used as representative thalassemia (TH) mice. Iron overload was generated by 6 months of oral iron administration before CLP surgery- induced sepsis in TH mice and wild-type (WT) mice. Additionally, BMMs from both mouse strains were used to explore the impact of BG. Results Without sepsis, iron-overload TH mice demonstrated more severe intestinal mucosal injury (gut leakage) with higher LPS and BG in serum, from gut translocation, when compared with WT mice. With CLP in iron-overload mice, sepsis severity in TH mice was more severe than WT as determined by survival analysis, organ injury (kidney and liver), bacteremia, endotoxemia, gut leakage (FITC-dextran) and serum BG. Activation by LPS plus BG (LPS+BG) in BMMs and in peripheral blood-derived neutrophils (both WT and TH cells) demonstrated more prominent cytokine production when compared with LPS activation alone. In parallel, LPS+BG also prominently induced genes expression of M1 macrophage polarization (iNOS, TNF-α and IL-1β) in both WT and TH cells in comparison with LPS activation alone. In addition, LPS+BG activated macrophage cytokine production was enhanced by a high dose of ferric ion (800 mM), more predominantly in TH macrophages compared with WT cells. Moreover, LPS+BG induced higher glycolysis activity with similar respiratory capacity in RAW264.7 (a macrophage cell line) compared with LPS activation alone. These data support an additive pro-inflammatory effect of BG upon LPS. Conclusion The enhanced-severity of sepsis in iron-overload TH mice was due to 1) increased LPS and BG in serum from iron-induced gut-mucosal injury; and 2) the pro-inflammatory amplification by ferric ion on LPS+BG activation.
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Affiliation(s)
- Kritsanawan Sae-Khow
- Medical Microbiology, Interdisciplinary and International Program, Graduate School, Chulalongkorn University, Bangkok, Thailand
| | - Awirut Charoensappakit
- Translational Research in Inflammation and Immunology Research Unit (TRIRU), Department of Microbiology, Chulalongkorn University, Bangkok, Thailand
| | - Peerapat Visitchanakun
- Medical Microbiology, Interdisciplinary and International Program, Graduate School, Chulalongkorn University, Bangkok, Thailand
| | - Wilasinee Saisorn
- Translational Research in Inflammation and Immunology Research Unit (TRIRU), Department of Microbiology, Chulalongkorn University, Bangkok, Thailand
| | - Saovaros Svasti
- Thalassemia Research Center, Institute of Molecular Biosciences, Mahidol University, Nakornpathom, Thailand
| | - Suthat Fucharoen
- Thalassemia Research Center, Institute of Molecular Biosciences, Mahidol University, Nakornpathom, Thailand
| | - Asada Leelahavanichkul
- Translational Research in Inflammation and Immunology Research Unit (TRIRU), Department of Microbiology, Chulalongkorn University, Bangkok, Thailand.,Department of Microbiology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
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14
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d'Arqom A, G Putri M, Savitri Y, Rahul Alfaidin AM. Vitamin and mineral supplementation for β-thalassemia during COVID-19 pandemic. Future Sci OA 2020; 6:FSO628. [PMID: 33230422 PMCID: PMC7434224 DOI: 10.2144/fsoa-2020-0110] [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: 06/24/2020] [Accepted: 07/31/2020] [Indexed: 01/22/2023] Open
Abstract
AIM Low levels of immune-related micronutrients have been identified in β-thalassemia samples. Moreover, the excess amount of iron, contributing to oxidative stress in the pathogenesis of the disease, alters the immune system in β-thalassemia, which is important during the COVID-19 pandemic. MATERIALS & METHODS Searches of PUBMED and EMBASE were conducted to identify the level and supplementation of micronutrients in β-thalassemia, published from 2001-May 2020. RESULTS The review found six observational and five interventional studies supporting the importance of supplementing vitamins and minerals among patients with β-thalassemia. CONCLUSION Supplementation of immune-related vitamins and minerals might bring benefits to the immune system, especially in reducing oxidative stress in β-thalassemia.
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Affiliation(s)
- Annette d'Arqom
- Department of Pharmacology & Therapy, Faculty of Medicine, Universitas Airlangga, Surabaya, 60131, Indonesia
| | - Melvanda G Putri
- Faculty of Medicine, Universitas Airlangga, Surabaya, 60131, Indonesia
| | - Yovani Savitri
- Faculty of Medicine, Universitas Airlangga, Surabaya, 60131, Indonesia
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15
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Buttari B, Profumo E, Caprari P, Massimi S, Sorrentino F, Maffei L, Gabbianelli M, Riganò R. Phenotypical and functional abnormalities of circulating neutrophils in patients with β-thalassemia. Ann Hematol 2020; 99:2265-2277. [PMID: 32803313 DOI: 10.1007/s00277-020-04213-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Accepted: 08/10/2020] [Indexed: 01/17/2023]
Abstract
β-Thalassemia is an inherited single gene disorder related to reduced synthesis of the β-globin chain of hemoglobin. Patients with β-thalassemia present variable clinical severity ranging from asymptomatic trait to severe transfusion-dependent anemia and multiple organs complications. Moreover, multiple immune abnormalities are a major concern in β-thalassemia patients. Aberrant neutrophil effector function plays a pivotal role in infection susceptibility in these patients. In severe and persistent inflammation, immature neutrophils are released from the bone marrow and are functionally different compared with mature ones. Despite some abnormalities reported for thalassemia patient's immune system, few data exist on the characterization of human neutrophils in β-thalassemia. The aim of this study was to investigate the phenotype and function of circulating neutrophil subsets in patients with β-thalassemia major and with β-thalassemia intermedia divided in transfusion-dependent and non-transfusion-dependent. By the use of immunochemical and cytofluorimetric analyses, we observed that patients' CD16+ neutrophils exhibit abnormalities in their phenotype and functions and the abnormalities vary according to the clinical form of the disease and to the neutrophil subset (CD16bright and CD16dim). Abnormalities include altered surface expression of the innate immune receptor CD45, Toll-like receptor 4, and CD32, reduced ability to produce an oxidative burst, and elevated levels of membrane lipid peroxidation, especially in patients with a more severe form of the disease. Overall, our results indicating the occurrence of an immuno-senescent phenotype on circulating neutrophils from thalassemia patients suggest the usefulness of neutrophil feature assessment as a tool for better clinical management of β-thalassemia.
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Affiliation(s)
- Brigitta Buttari
- Department of Cardiovascular and Endocrine-metabolic Diseases and Aging, Istituto Superiore di Sanità, Viale Regina Elena, 299, 00161, Rome, Italy
| | - Elisabetta Profumo
- Department of Cardiovascular and Endocrine-metabolic Diseases and Aging, Istituto Superiore di Sanità, Viale Regina Elena, 299, 00161, Rome, Italy
| | - Patrizia Caprari
- National Centre for the Control and Evaluation of Medicine, Istituto Superiore di Sanità, Viale Regina Elena, 299, 00161, Rome, Italy.
| | - Sara Massimi
- National Centre for the Control and Evaluation of Medicine, Istituto Superiore di Sanità, Viale Regina Elena, 299, 00161, Rome, Italy
| | - Francesco Sorrentino
- Thalassemia Unit, S. Eugenio Hospital, Piazzale dell'Umanesimo, 00100, Rome, Italy
| | - Laura Maffei
- Thalassemia Unit, S. Eugenio Hospital, Piazzale dell'Umanesimo, 00100, Rome, Italy
| | - Marco Gabbianelli
- Department of Cardiovascular and Endocrine-metabolic Diseases and Aging, Istituto Superiore di Sanità, Viale Regina Elena, 299, 00161, Rome, Italy
| | - Rachele Riganò
- Department of Cardiovascular and Endocrine-metabolic Diseases and Aging, Istituto Superiore di Sanità, Viale Regina Elena, 299, 00161, Rome, Italy
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16
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Siriworadetkun S, Thubthed R, Thiengtavor C, Paiboonsukwong K, Khuhapinant A, Fucharoen S, Pattanapanyasat K, Vadolas J, Svasti S, Chaichompoo P. Elevated levels of circulating monocytic myeloid derived suppressor cells in splenectomised β-thalassaemia/HbE patients. Br J Haematol 2020; 191:e72-e76. [PMID: 32754936 DOI: 10.1111/bjh.17012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 06/25/2020] [Accepted: 07/03/2020] [Indexed: 11/26/2022]
Affiliation(s)
- Sirikwan Siriworadetkun
- Thalassemia Research Center, Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom, Thailand.,Department of Pathobiology, Faculty of Science, Mahidol University, Bangkok, Thailand
| | - Rattanawan Thubthed
- Department of Pathobiology, Faculty of Science, Mahidol University, Bangkok, Thailand
| | - Chayada Thiengtavor
- Department of Pathobiology, Faculty of Science, Mahidol University, Bangkok, Thailand.,Faculty of Optometry, Ramkhamhaeng University, Bangkok, Thailand
| | - Kittiphong Paiboonsukwong
- Thalassemia Research Center, Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom, Thailand
| | - Archrob Khuhapinant
- Division of Hematology, Department of Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Suthat Fucharoen
- Thalassemia Research Center, Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom, Thailand
| | - Kovit Pattanapanyasat
- Siriraj Center of Research Excellence for Microparticle and Exosome in Diseases, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Jim Vadolas
- Centre for Cancer Research, Hudson Institute of Medical Research, Melbourne, Australia.,Department of Molecular and Translational Science, Monash University, Melbourne, Australia
| | - Saovaros Svasti
- Thalassemia Research Center, Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom, Thailand.,Department of Biochemistry, Faculty of Science, Mahidol University, Bangkok, Thailand
| | - Pornthip Chaichompoo
- Department of Pathobiology, Faculty of Science, Mahidol University, Bangkok, Thailand
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17
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Visitchanakun P, Saisorn W, Wongphoom J, Chatthanathon P, Somboonna N, Svasti S, Fucharoen S, Leelahavanichkul A. Gut leakage enhances sepsis susceptibility in iron-overloaded β-thalassemia mice through macrophage hyperinflammatory responses. Am J Physiol Gastrointest Liver Physiol 2020; 318:G966-G979. [PMID: 32308038 DOI: 10.1152/ajpgi.00337.2019] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Iron overload induces intestinal-permeability defect (gut leakage), and gut translocation of organismal molecules might enhance systemic inflammation and sepsis severity in patients with thalassemia (Thal). Hence, iron administration in Hbbth3/+ mice, heterozygous β-globin-deficient Thal mice, was explored. Oral iron administration induced more severe secondary hemochromatosis and gut leakage in Thal mice compared with wild-type (WT) mice. Gut leakage was determined by 1) FITC-dextran assay, 2) spontaneous serum elevation of endotoxin (LPS) and (1→3)-β-d-glucan (BG), molecular structures of gut-organisms, and 3) reduction of tight-junction molecules with increased enterocyte apoptosis (activated caspase-3) by immunofluorescent staining. Iron overload also enhanced serum cytokines and increased Bacteroides spp. (gram-negative bacteria) in feces as analyzed by microbiome analysis. LPS injection in iron-overloaded Thal mice produced higher mortality and prominent cytokine responses. Additionally, stimulation with LPS plus iron in macrophage from Thal mice induced higher cytokines production with lower β-globin gene expression compared with WT. Furthermore, possible gut leakage as determined by elevated LPS or BG (>60 pg/mL) in serum without systemic infection was demonstrated in 18 out of 41 patients with β-thalassemia major. Finally, enhanced LPS-induced cytokine responses of mononuclear cells from these patients compared with cells from healthy volunteers were demonstrated. In conclusion, oral iron administration in Thal mice induced more severe gut leakage and increased fecal gram-negative bacteria, resulting in higher levels of endotoxemia and serum inflammatory cytokines compared with WT. Preexisting hyperinflammatory cytokines in iron-overloaded Thal enhanced susceptibility toward infection.NEW & NOTEWORTHY Although the impact of iron accumulation in several organs of patients with thalassemia is well known, the adverse effect of iron accumulation in gut is not frequently mentioned. Here, we demonstrated iron-induced gut-permeability defect, impact of organismal molecules from gut translocation of, and macrophage functional defect upon the increased sepsis susceptibility in thalassemia mice.
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Affiliation(s)
- Peerapat Visitchanakun
- Faculty of Medicine, Department of Microbiology, Chulalongkorn University, Bangkok, Thailand.,Medical Microbiology, Interdisciplinary Program, Graduate School, Chulalongkorn University, Bangkok, Thailand
| | - Wilasinee Saisorn
- Faculty of Medicine, Department of Microbiology, Chulalongkorn University, Bangkok, Thailand
| | - Jutamas Wongphoom
- Department of Pathology, King Chulalongkorn Memorial Hospital, Bangkok, Thailand
| | - Piraya Chatthanathon
- Faculty of Science, Department of Microbiology, Chulalongkorn University, Bangkok, Thailand
| | - Naraporn Somboonna
- Faculty of Science, Department of Microbiology, Chulalongkorn University, Bangkok, Thailand.,Microbiome Research Unit for Probiotics in Food and Cosmetics, Chulalongkorn University, Bangkok, Thailand
| | - Saovaros Svasti
- Thalassemia Research Center, Institute of Molecular Biosciences, Mahidol University, Nakornpathom, Thailand
| | - Suthat Fucharoen
- Thalassemia Research Center, Institute of Molecular Biosciences, Mahidol University, Nakornpathom, Thailand
| | - Asada Leelahavanichkul
- Faculty of Medicine, Department of Microbiology, Chulalongkorn University, Bangkok, Thailand.,Translational Research in Inflammation and Immunology Research Unit, Department of Microbiology, Chulalongkorn University, Bangkok, Thailand
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Leiva M, Matesanz N, Pulgarín-Alfaro M, Nikolic I, Sabio G. Uncovering the Role of p38 Family Members in Adipose Tissue Physiology. Front Endocrinol (Lausanne) 2020; 11:572089. [PMID: 33424765 PMCID: PMC7786386 DOI: 10.3389/fendo.2020.572089] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Accepted: 11/17/2020] [Indexed: 12/12/2022] Open
Abstract
The complex functions of adipose tissue have been a focus of research interest over the past twenty years. Adipose tissue is not only the main energy storage depot, but also one of the largest endocrine organs in the body and carries out crucial metabolic functions. Moreover, brown and beige adipose depots are major sites of energy expenditure through the activation of adaptive, non-shivering thermogenesis. In recent years, numerous signaling molecules and pathways have emerged as critical regulators of adipose tissue, in both homeostasis and obesity-related disease. Among the best characterized are members of the p38 kinase family. The activity of these kinases has emerged as a key contributor to the biology of the white and brown adipose tissues, and their modulation could provide new therapeutic approaches against obesity. Here, we give an overview of the roles of the distinct p38 family members in adipose tissue, focusing on their actions in adipogenesis, thermogenic activity, and secretory function.
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Thiengtavor C, Siriworadetkun S, Paiboonsukwong K, Fucharoen S, Pattanapanyasat K, Vadolas J, Svasti S, Chaichompoo P. Increased ferritin levels in non-transfusion-dependent β°-thalassaemia/HbE are associated with reduced CXCR2 expression and neutrophil migration. Br J Haematol 2019; 189:187-198. [PMID: 31884679 DOI: 10.1111/bjh.16295] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2019] [Accepted: 09/14/2019] [Indexed: 01/11/2023]
Abstract
Severe bacterial infection is a major complication causing morbidity and mortality in β-thalassaemia/HbE patients. Innate immunity constitutes the first line of defence against bacterial infection. This study aimed to comprehensively investigate the innate immune phenotype and function related to factors predisposing to infection in non-transfusion-dependent (NTD) β°-thalassaemia/HbE patients. Twenty-six patients and 17 healthy subjects were recruited to determine complement activity (C3, C4, mannose-binding lectin and CH50) and surface receptor expression including markers of phagocytosis (CD11b, CD16 and C3bR), inflammation (C5aR) and migration (CD11b, CXCR1 and CXCR2) on neutrophils and monocytes. In addition, phagocytosis and oxidative burst activity of neutrophils and monocytes against Escherichia coli and neutrophil migration were examined. Decreased C3 and surface expression of CD11b and C3bR on neutrophils were found in patients. However, phagocytosis of neutrophils in patients was still in the normal range. Interestingly, patients displayed a significant reduction of surface expression of CXCR2 [1705 ± 217 mean fluorescent intensity (MFI)] on neutrophils, leading to impaired neutrophil migration (9·2 ± 7·7%) when compared to neutrophils from healthy subjects (2261 ± 627 MFI and 27·8 ± 9% respectively). Moreover, surface expression of CXCR2 on neutrophils was associated with splenectomy status, serum ferritin and haemoglobin levels. Therefore, impaired neutrophil migration could contribute to the increased susceptibility to infection seen in NTD β°-thalassaemia/HbE patients.
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Affiliation(s)
- Chayada Thiengtavor
- Department of Pathobiology, Faculty of Science, Mahidol University, Bangkok, Thailand.,Faculty of Optometry, Ramkhamhaeng University, Bangkok, Thailand
| | - Sirikwan Siriworadetkun
- Department of Pathobiology, Faculty of Science, Mahidol University, Bangkok, Thailand.,Thalassemia Research Center, Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom, Thailand
| | - Kittiphong Paiboonsukwong
- Thalassemia Research Center, Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom, Thailand
| | - Suthat Fucharoen
- Thalassemia Research Center, Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom, Thailand
| | - Kovit Pattanapanyasat
- Siriraj Center of Research Excellence for Microparticle and Exosome in Diseases, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Jim Vadolas
- Centre for Cancer Research, Hudson Institute of Medical Research, Melbourne, Australia.,Department of Molecular and Translational Science, Monash University, Melbourne, Australia
| | - Saovaros Svasti
- Thalassemia Research Center, Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom, Thailand.,Department of Biochemistry, Faculty of Science, Mahidol University, Bangkok, Thailand
| | - Pornthip Chaichompoo
- Department of Pathobiology, Faculty of Science, Mahidol University, Bangkok, Thailand
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Manolova V, Nyffenegger N, Flace A, Altermatt P, Varol A, Doucerain C, Sundstrom H, Dürrenberger F. Oral ferroportin inhibitor ameliorates ineffective erythropoiesis in a model of β-thalassemia. J Clin Invest 2019; 130:491-506. [PMID: 31638596 PMCID: PMC6934209 DOI: 10.1172/jci129382] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Accepted: 10/08/2019] [Indexed: 01/01/2023] Open
Abstract
β-Thalassemia is a genetic anemia caused by partial or complete loss of β-globin synthesis, leading to ineffective erythropoiesis and RBCs with a short life span. Currently, there is no efficacious oral medication modifying anemia for patients with β-thalassemia. The inappropriately low levels of the iron regulatory hormone hepcidin enable excessive iron absorption by ferroportin, the unique cellular iron exporter in mammals, leading to organ iron overload and associated morbidities. Correction of unbalanced iron absorption and recycling by induction of hepcidin synthesis or treatment with hepcidin mimetics ameliorates β-thalassemia. However, hepcidin modulation or replacement strategies currently in clinical development all require parenteral drug administration. We identified oral ferroportin inhibitors by screening a library of small molecular weight compounds for modulators of ferroportin internalization. Restricting iron availability by VIT-2763, the first clinical stage oral ferroportin inhibitor, ameliorated anemia and the dysregulated iron homeostasis in the Hbbth3/+ mouse model of β-thalassemia intermedia. VIT-2763 not only improved erythropoiesis but also corrected the proportions of myeloid precursors in spleens of Hbbth3/+ mice. VIT-2763 is currently being developed as an oral drug targeting ferroportin for the treatment of β-thalassemia.
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Editorial: Update in myeloid biology. Curr Opin Hematol 2018; 26:1-5. [PMID: 30451722 DOI: 10.1097/moh.0000000000000475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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