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Menon V, Slavinsky M, Hermine O, Ghaffari S. Mitochondrial regulation of erythropoiesis in homeostasis and disease. Br J Haematol 2024. [PMID: 38946206 DOI: 10.1111/bjh.19600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Accepted: 06/06/2024] [Indexed: 07/02/2024]
Abstract
Erythroid cells undergo a highly complex maturation process, resulting in dynamic changes that generate red blood cells (RBCs) highly rich in haemoglobin. The end stages of the erythroid cell maturation process primarily include chromatin condensation and nuclear polarization, followed by nuclear expulsion called enucleation and clearance of mitochondria and other organelles to finally generate mature RBCs. While healthy RBCs are devoid of mitochondria, recent evidence suggests that mitochondria are actively implicated in the processes of erythroid cell maturation, erythroblast enucleation and RBC production. However, the extent of mitochondrial participation that occurs during these ultimate steps is not completely understood. This is specifically important since abnormal RBC retention of mitochondria or mitochondrial DNA contributes to the pathophysiology of sickle cell and other disorders. Here we review some of the key findings so far that elucidate the importance of this process in various aspects of erythroid maturation and RBC production under homeostasis and disease conditions.
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Affiliation(s)
- Vijay Menon
- Department of Cell, Developmental & Regenerative Biology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Mary Slavinsky
- Department of Cell, Developmental & Regenerative Biology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Olivier Hermine
- Department Hematology, Hôpital Necker, Assistance Publique Hôpitaux de Paris, University Paris Descartes, Paris, France
- INSERM U1163 and CNRS 8254, Imagine Institute, Université Sorbonne Paris Cité, Paris, France
| | - Saghi Ghaffari
- Department of Cell, Developmental & Regenerative Biology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Black Family Stem Cell Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA
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Lin S, Lu P. Ginger Root Bioactive Compounds Specifically Inhibits Growth of Colon Cancer Cells in Culture. Nutr Metab Insights 2024; 17:11786388241231163. [PMID: 38756503 PMCID: PMC11097737 DOI: 10.1177/11786388241231163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Accepted: 01/21/2024] [Indexed: 05/18/2024] Open
Abstract
Objective Colon cancer is affluent among many people, and having cancer greatly impacts the lives of many. Ginger is a common food, particularly in Asian cuisine. However, the health benefits of ginger as a whole food and 6-gingerol, its bioactive compound in prevention of colon cancer have not been fully addressed. This experiment investigated effects of ginger juice and 6-gingerol on colon cancer cell growth and death. Methods Fresh ginger roots were homogenized for juice preparation. Total phenolic contents of ginger juice were measured using Folin-C assay. Colon cancer SW480 cells and normal colon epithelial cells CCD-18Co were treated with ginger juice and/or 6-gingerol. Cell metabolic activity was assessed by MTT assay. Cell apoptosis and cell cycle arrest were accessed by immunoblotting. Data were analyzed by 2-way ANOVA with a Tukey post-hoc test and statistical significance was set at P < .05. Results The results showed that ginger juice selectively inhibited SW480 cell growth at 25 µL/mL for 40 hours. High doses of ginger juice (at 50 and 100 µL/mL for 40 hours) inhibited the growth of both cell types. This was independent of caspase-3 activation. Six-gingerol specifically inhibited SW480 cell growth starting at 0.5 µmoL/L (P < .01). More than 1 µmoL/L 6-gingerol did not give more power to inhibit SW480 cell growth. The results also showed that CCD-18Co cell growth rates were not changed after 6-gingerol treatments (up to 10 µmoL/L, P > .1). Immunoblotting results revealed that the elevation of Myt1 levels and decreases in CDK1, p21 Wafl/Cip1 and pSer642-Wee1 only occurred in SW480 but not CCD-18Co cells when treated with 1 and/or 2.5 µmoL/L 6-gingerol for 40 hours. Conclusion 6-gingerol can specifically inhibit SW480 cancer cells without killing normal CCd-18Co cells, through cell cycle arrest. Ginger juice can selectively inhibit colon cancer cell growth in a narrow window at ~25 µL/mL.
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Affiliation(s)
- Shelley Lin
- Department of Nutritional Sciences, Oklahoma State University, Stillwater, OK, USA
- Class of 2024, Stillwater High School, Stillwater, OK, USA
| | - Peiran Lu
- Department of Nutritional Sciences, Oklahoma State University, Stillwater, OK, USA
- Children’s Hospital of Philadelphia, University of Pennsylvania, Philadelphia, PA, USA
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Țichil I, Mitre I, Zdrenghea MT, Bojan AS, Tomuleasa CI, Cenariu D. A Review of Key Regulators of Steady-State and Ineffective Erythropoiesis. J Clin Med 2024; 13:2585. [PMID: 38731114 PMCID: PMC11084473 DOI: 10.3390/jcm13092585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Revised: 04/24/2024] [Accepted: 04/25/2024] [Indexed: 05/13/2024] Open
Abstract
Erythropoiesis is initiated with the transformation of multipotent hematopoietic stem cells into committed erythroid progenitor cells in the erythroblastic islands of the bone marrow in adults. These cells undergo several stages of differentiation, including erythroblast formation, normoblast formation, and finally, the expulsion of the nucleus to form mature red blood cells. The erythropoietin (EPO) pathway, which is activated by hypoxia, induces stimulation of the erythroid progenitor cells and the promotion of their proliferation and survival as well as maturation and hemoglobin synthesis. The regulation of erythropoiesis is a complex and dynamic interaction of a myriad of factors, such as transcription factors (GATA-1, STAT5), cytokines (IL-3, IL-6, IL-11), iron metabolism and cell cycle regulators. Multiple microRNAs are involved in erythropoiesis, mediating cell growth and development, regulating oxidative stress, erythrocyte maturation and differentiation, hemoglobin synthesis, transferrin function and iron homeostasis. This review aims to explore the physiology of steady-state erythropoiesis and to outline key mechanisms involved in ineffective erythropoiesis linked to anemia, chronic inflammation, stress, and hematological malignancies. Studying aberrations in erythropoiesis in various diseases allows a more in-depth understanding of the heterogeneity within erythroid populations and the development of gene therapies to treat hematological disorders.
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Affiliation(s)
- Ioana Țichil
- Faculty of Medicine, University of Medicine and Pharmacy “Iuliu Hatieganu”, 8 Victor Babes Street, 400012 Cluj-Napoca, Romania; (I.M.); (M.T.Z.); (A.S.B.); (C.I.T.); (D.C.)
- Department of Haematology, “Ion Chiricuta” Institute of Oncology, 34–36 Republicii Street, 400015 Cluj-Napoca, Romania
| | - Ileana Mitre
- Faculty of Medicine, University of Medicine and Pharmacy “Iuliu Hatieganu”, 8 Victor Babes Street, 400012 Cluj-Napoca, Romania; (I.M.); (M.T.Z.); (A.S.B.); (C.I.T.); (D.C.)
| | - Mihnea Tudor Zdrenghea
- Faculty of Medicine, University of Medicine and Pharmacy “Iuliu Hatieganu”, 8 Victor Babes Street, 400012 Cluj-Napoca, Romania; (I.M.); (M.T.Z.); (A.S.B.); (C.I.T.); (D.C.)
- Department of Haematology, “Ion Chiricuta” Institute of Oncology, 34–36 Republicii Street, 400015 Cluj-Napoca, Romania
| | - Anca Simona Bojan
- Faculty of Medicine, University of Medicine and Pharmacy “Iuliu Hatieganu”, 8 Victor Babes Street, 400012 Cluj-Napoca, Romania; (I.M.); (M.T.Z.); (A.S.B.); (C.I.T.); (D.C.)
- Department of Haematology, “Ion Chiricuta” Institute of Oncology, 34–36 Republicii Street, 400015 Cluj-Napoca, Romania
| | - Ciprian Ionuț Tomuleasa
- Faculty of Medicine, University of Medicine and Pharmacy “Iuliu Hatieganu”, 8 Victor Babes Street, 400012 Cluj-Napoca, Romania; (I.M.); (M.T.Z.); (A.S.B.); (C.I.T.); (D.C.)
- Department of Haematology, “Ion Chiricuta” Institute of Oncology, 34–36 Republicii Street, 400015 Cluj-Napoca, Romania
- MEDFUTURE—Research Centre for Advanced Medicine, 8 Louis Pasteur Street, 400347 Cluj-Napoca, Romania
| | - Diana Cenariu
- Faculty of Medicine, University of Medicine and Pharmacy “Iuliu Hatieganu”, 8 Victor Babes Street, 400012 Cluj-Napoca, Romania; (I.M.); (M.T.Z.); (A.S.B.); (C.I.T.); (D.C.)
- MEDFUTURE—Research Centre for Advanced Medicine, 8 Louis Pasteur Street, 400347 Cluj-Napoca, Romania
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Hu C, Zhang N, Hong Y, Tie R, Fan D, Lin A, Chen Y, Xiang LX, Shao JZ. Single-cell RNA sequencing unveils the hidden powers of zebrafish kidney for generating both hematopoiesis and adaptive antiviral immunity. eLife 2024; 13:RP92424. [PMID: 38497789 PMCID: PMC10948150 DOI: 10.7554/elife.92424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2024] Open
Abstract
The vertebrate kidneys play two evolutionary conserved roles in waste excretion and osmoregulation. Besides, the kidney of fish is considered as a functional ortholog of mammalian bone marrow that serves as a hematopoietic hub for generating blood cell lineages and immunological responses. However, knowledge about the properties of kidney hematopoietic cells, and the functionality of the kidney in fish immune systems remains to be elucidated. To this end, our present study generated a comprehensive atlas with 59 hematopoietic stem/progenitor cell (HSPC) and immune-cells types from zebrafish kidneys via single-cell transcriptome profiling analysis. These populations included almost all known cells associated with innate and adaptive immunity, and displayed differential responses to viral infection, indicating their diverse functional roles in antiviral immunity. Remarkably, HSPCs were found to have extensive reactivities to viral infection, and the trained immunity can be effectively induced in certain HSPCs. In addition, the antigen-stimulated adaptive immunity can be fully generated in the kidney, suggesting the kidney acts as a secondary lymphoid organ. These results indicated that the fish kidney is a dual-functional entity with functionalities of both primary and secondary lymphoid organs. Our findings illustrated the unique features of fish immune systems, and highlighted the multifaced biology of kidneys in ancient vertebrates.
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Affiliation(s)
- Chongbin Hu
- College of Life Sciences, Key Laboratory for Cell and Gene Engineering of Zhejiang Province, Zhejiang UniversityHangzhouChina
| | - Nan Zhang
- College of Life Sciences, Key Laboratory for Cell and Gene Engineering of Zhejiang Province, Zhejiang UniversityHangzhouChina
| | - Yun Hong
- College of Life Sciences, Key Laboratory for Cell and Gene Engineering of Zhejiang Province, Zhejiang UniversityHangzhouChina
| | - Ruxiu Tie
- Bone Marrow Transplantation Center, the First Affiliated Hospital, Zhejiang University School of MedicineHangzhouChina
| | - Dongdong Fan
- College of Life Sciences, Key Laboratory for Cell and Gene Engineering of Zhejiang Province, Zhejiang UniversityHangzhouChina
| | - Aifu Lin
- College of Life Sciences, Key Laboratory for Cell and Gene Engineering of Zhejiang Province, Zhejiang UniversityHangzhouChina
| | - Ye Chen
- College of Life Sciences, Key Laboratory for Cell and Gene Engineering of Zhejiang Province, Zhejiang UniversityHangzhouChina
- Department of Genetic and Metabolic Disease, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child HealthHangzhouChina
| | - Li-xin Xiang
- College of Life Sciences, Key Laboratory for Cell and Gene Engineering of Zhejiang Province, Zhejiang UniversityHangzhouChina
| | - Jian-zhong Shao
- College of Life Sciences, Key Laboratory for Cell and Gene Engineering of Zhejiang Province, Zhejiang UniversityHangzhouChina
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and TechnologyQingdaoChina
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5
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Lin S, Zheng Y, Chen M, Xu L, Huang H. The interactions between ineffective erythropoiesis and ferroptosis in β-thalassemia. Front Physiol 2024; 15:1346173. [PMID: 38468700 PMCID: PMC10925657 DOI: 10.3389/fphys.2024.1346173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Accepted: 02/09/2024] [Indexed: 03/13/2024] Open
Abstract
In Guangxi, Hainan, and Fujian Province in southern China, β-thalassemia is a frequent monogenic hereditary disorder that is primarily defined by hemolytic anemia brought on by inefficient erythropoiesis. It has been found that ineffective erythropoiesis in β-thalassemia is closely associated with a high accumulation of Reactive oxygen species, a product of oxidative stress, in erythroid cells. During recent years, ferroptosis is an iron-dependent lipid peroxidation that involves abnormalities in lipid and iron metabolism as well as reactive oxygen species homeostasis. It is a recently identified kind of programmed cell death. β-thalassemia patients experience increased iron release from reticuloendothelial cells and intestinal absorption of iron, ultimately resulting in iron overload. Additionally, the secretion of Hepcidin is inhibited in these patients. What counts is both ineffective erythropoiesis and ferroptosis in β-thalassemia are intricately linked to the iron metabolism and Reactive oxygen species homeostasis. Consequently, to shed further light on the pathophysiology of β-thalassemia and propose fresh ideas for its therapy, this paper reviews ferroptosis, ineffective erythropoiesis, and the way they interact.
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Affiliation(s)
- Siyang Lin
- Fujian Provincial Key Laboratory of Prenatal Diagnosis and Birth Defect, Medical Genetic Diagnosis and Therapy Center of Fujian Maternity and Child Health Hospital College of Clinical Medicine for Obstetrics and Gynecology and Pediatrics, Fujian Medical University, Fuzhou, China
- The School of Medical Technology and Engineering, Fujian Medical University, Fuzhou, China
| | - Yanping Zheng
- Fujian Provincial Key Laboratory of Prenatal Diagnosis and Birth Defect, Medical Genetic Diagnosis and Therapy Center of Fujian Maternity and Child Health Hospital College of Clinical Medicine for Obstetrics and Gynecology and Pediatrics, Fujian Medical University, Fuzhou, China
| | - Meihuan Chen
- Fujian Provincial Key Laboratory of Prenatal Diagnosis and Birth Defect, Medical Genetic Diagnosis and Therapy Center of Fujian Maternity and Child Health Hospital College of Clinical Medicine for Obstetrics and Gynecology and Pediatrics, Fujian Medical University, Fuzhou, China
- Fujian Clinical Research Center for Maternal-Fetal Medicine, Fuzhou, China
- National Key Obstetric Clinical Specialty Construction Institution of China, Fuzhou, China
| | - Liangpu Xu
- Fujian Provincial Key Laboratory of Prenatal Diagnosis and Birth Defect, Medical Genetic Diagnosis and Therapy Center of Fujian Maternity and Child Health Hospital College of Clinical Medicine for Obstetrics and Gynecology and Pediatrics, Fujian Medical University, Fuzhou, China
- Fujian Clinical Research Center for Maternal-Fetal Medicine, Fuzhou, China
- National Key Obstetric Clinical Specialty Construction Institution of China, Fuzhou, China
| | - Hailong Huang
- Fujian Provincial Key Laboratory of Prenatal Diagnosis and Birth Defect, Medical Genetic Diagnosis and Therapy Center of Fujian Maternity and Child Health Hospital College of Clinical Medicine for Obstetrics and Gynecology and Pediatrics, Fujian Medical University, Fuzhou, China
- The School of Medical Technology and Engineering, Fujian Medical University, Fuzhou, China
- Fujian Clinical Research Center for Maternal-Fetal Medicine, Fuzhou, China
- National Key Obstetric Clinical Specialty Construction Institution of China, Fuzhou, China
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Garbowski MW, Ugidos M, Risueño A, Shetty JK, Schwickart M, Hermine O, Porter JB, Thakurta A, Vodala S. Luspatercept stimulates erythropoiesis, increases iron utilization, and redistributes body iron in transfusion-dependent thalassemia. Am J Hematol 2024; 99:182-192. [PMID: 37782758 DOI: 10.1002/ajh.27102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 09/06/2023] [Accepted: 09/09/2023] [Indexed: 10/04/2023]
Abstract
Luspatercept, a ligand-trapping fusion protein, binds select TGF-β superfamily ligands implicated in thalassemic erythropoiesis, promoting late-stage erythroid maturation. Luspatercept reduced transfusion burden in the BELIEVE trial (NCT02604433) of 336 adults with transfusion-dependent thalassemia (TDT). Analysis of biomarkers in BELIEVE offers novel physiological and clinical insights into benefits offered by luspatercept. Transfusion iron loading rates decreased 20% by 1.4 g (~7 blood units; median iron loading rate difference: -0.05 ± 0.07 mg Fe/kg/day, p< .0001) and serum ferritin (s-ferritin) decreased 19.2% by 269.3 ± 963.7 μg/L (p < .0001), indicating reduced macrophage iron. However, liver iron content (LIC) did not decrease but showed statistically nonsignificant increases from 5.3 to 6.7 mg/g dw. Erythropoietin, growth differentiation factor 15, soluble transferrin receptor 1 (sTfR1), and reticulocytes rose by 93%, 59%, 66%, and 112%, respectively; accordingly, erythroferrone increased by 51% and hepcidin decreased by 53% (all p < .0001). Decreased transfusion with luspatercept in patients with TDT was associated with increased erythropoietic markers and decreasing hepcidin. Furthermore, s-ferritin reduction associated with increased erythroid iron incorporation (marked by sTfR1) allowed increased erythrocyte marrow output, consequently reducing transfusion needs and enhancing rerouting of hemolysis (heme) iron and non-transferrin-bound iron to the liver. LIC increased in patients with intact spleens, consistent with iron redistribution given the hepcidin reduction. Thus, erythropoietic and hepcidin changes with luspatercept in TDT lower transfusion dependency and may redistribute iron from macrophages to hepatocytes, necessitating the use of concomitant chelator cover for effective iron management.
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Affiliation(s)
- Maciej W Garbowski
- UCL Cancer Institute Hematology Department, University College London, University College London Hospitals, London, UK
| | - Manuel Ugidos
- BMS Center for Innovation and Translational Research Europe (CITRE), Bristol Myers Squibb, Seville, Spain
| | - Alberto Risueño
- BMS Center for Innovation and Translational Research Europe (CITRE), Bristol Myers Squibb, Seville, Spain
| | - Jeevan K Shetty
- Celgene International Sàrl a Bristol-Myers Squibb Company, Boudry, Switzerland
| | | | - Olivier Hermine
- Necker Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
- Imagine Institute, INSERM Unité 1163, University of Paris, Paris, France
| | - John B Porter
- UCL Cancer Institute Hematology Department, University College London, University College London Hospitals, London, UK
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Quotti Tubi L, Canovas Nunes S, Mandato E, Pizzi M, Vitulo N, D’Agnolo M, Colombatti R, Martella M, Boaro MP, Doriguzzi Breatta E, Fregnani A, Spinello Z, Nabergoj M, Filhol O, Boldyreff B, Albiero M, Fadini GP, Gurrieri C, Vianello F, Semenzato G, Manni S, Trentin L, Piazza F. CK2β Regulates Hematopoietic Stem Cell Biology and Erythropoiesis. Hemasphere 2023; 7:e978. [PMID: 38026791 PMCID: PMC10673422 DOI: 10.1097/hs9.0000000000000978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 09/25/2023] [Indexed: 12/01/2023] Open
Abstract
The Ser-Thr kinase CK2 plays important roles in sustaining cell survival and resistance to stress and these functions are exploited by different types of blood tumors. Yet, the physiological involvement of CK2 in normal blood cell development is poorly known. Here, we discovered that the β regulatory subunit of CK2 is critical for normal hematopoiesis in the mouse. Fetal livers of conditional CK2β knockout embryos showed increased numbers of hematopoietic stem cells associated to a higher proliferation rate compared to control animals. Both hematopoietic stem and progenitor cells (HSPCs) displayed alterations in the expression of transcription factors involved in cell quiescence, self-renewal, and lineage commitment. HSPCs lacking CK2β were functionally impaired in supporting both in vitro and in vivo hematopoiesis as demonstrated by transplantation assays. Furthermore, KO mice developed anemia due to a reduced number of mature erythroid cells. This compartment was characterized by dysplasia, proliferative defects at early precursor stage, and apoptosis at late-stage erythroblasts. Erythroid cells exhibited a marked compromise of signaling cascades downstream of the cKit and erythropoietin receptor, with a defective activation of ERK/JNK, JAK/STAT5, and PI3K/AKT pathways and perturbations of several transcriptional programs as demonstrated by RNA-Seq analysis. Moreover, we unraveled an unforeseen molecular mechanism whereby CK2 sustains GATA1 stability and transcriptional proficiency. Thus, our work demonstrates new and crucial functions of CK2 in HSPC biology and in erythropoiesis.
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Affiliation(s)
- Laura Quotti Tubi
- Department of Medicine, Division of Hematology, University of Padova, Italy
- Laboratory of Normal and Malignant Hematopoiesis and Pathobiology of Myeloma and Lymphoma. Veneto Institute of Molecular Medicine (VIMM), Padova, Italy
| | - Sara Canovas Nunes
- Laboratory of Normal and Malignant Hematopoiesis and Pathobiology of Myeloma and Lymphoma. Veneto Institute of Molecular Medicine (VIMM), Padova, Italy
- Division of Hematology/Oncology, Boston Children’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Elisa Mandato
- Laboratory of Normal and Malignant Hematopoiesis and Pathobiology of Myeloma and Lymphoma. Veneto Institute of Molecular Medicine (VIMM), Padova, Italy
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Marco Pizzi
- Department of Medicine, Cytopathology and Surgical Pathology Unit, University of Padova, Italy
| | - Nicola Vitulo
- Department of Biotechnology, University of Verona, Italy
| | - Mirco D’Agnolo
- Department of Women’s and Child’s Health, University of Padova, Italy
| | | | | | - Maria Paola Boaro
- Department of Women’s and Child’s Health, University of Padova, Italy
| | - Elena Doriguzzi Breatta
- Department of Medicine, Division of Hematology, University of Padova, Italy
- Laboratory of Normal and Malignant Hematopoiesis and Pathobiology of Myeloma and Lymphoma. Veneto Institute of Molecular Medicine (VIMM), Padova, Italy
| | - Anna Fregnani
- Department of Medicine, Division of Hematology, University of Padova, Italy
- Laboratory of Normal and Malignant Hematopoiesis and Pathobiology of Myeloma and Lymphoma. Veneto Institute of Molecular Medicine (VIMM), Padova, Italy
| | - Zaira Spinello
- Department of Medicine, Division of Hematology, University of Padova, Italy
- Laboratory of Normal and Malignant Hematopoiesis and Pathobiology of Myeloma and Lymphoma. Veneto Institute of Molecular Medicine (VIMM), Padova, Italy
| | - Mitja Nabergoj
- Hematology Service, Institut Central des Hôpitaux (ICH), Hôpital du Valais, Sion, Switzerland
| | - Odile Filhol
- Institut National de la Santé Et de la Recherche Médicale (INSERM) U1036, Institute de Reserches en Technologies et Sciences pour le Vivant/Biologie du Cancer et de l’Infection, Grenoble, France
| | | | - Mattia Albiero
- Department of Surgery, Oncology and Gastroenterology, University of Padova, Italy
- Veneto Institute of Molecular Medicine, Experimental Diabetology Lab, Padova, Italy
| | - Gian Paolo Fadini
- Veneto Institute of Molecular Medicine, Experimental Diabetology Lab, Padova, Italy
- Department of Medicine, University of Padova, Italy
| | - Carmela Gurrieri
- Department of Medicine, Division of Hematology, University of Padova, Italy
- Laboratory of Normal and Malignant Hematopoiesis and Pathobiology of Myeloma and Lymphoma. Veneto Institute of Molecular Medicine (VIMM), Padova, Italy
| | - Fabrizio Vianello
- Department of Medicine, Division of Hematology, University of Padova, Italy
- Laboratory of Normal and Malignant Hematopoiesis and Pathobiology of Myeloma and Lymphoma. Veneto Institute of Molecular Medicine (VIMM), Padova, Italy
| | - Gianpietro Semenzato
- Department of Medicine, Division of Hematology, University of Padova, Italy
- Laboratory of Normal and Malignant Hematopoiesis and Pathobiology of Myeloma and Lymphoma. Veneto Institute of Molecular Medicine (VIMM), Padova, Italy
| | - Sabrina Manni
- Department of Medicine, Division of Hematology, University of Padova, Italy
- Laboratory of Normal and Malignant Hematopoiesis and Pathobiology of Myeloma and Lymphoma. Veneto Institute of Molecular Medicine (VIMM), Padova, Italy
| | - Livio Trentin
- Department of Medicine, Division of Hematology, University of Padova, Italy
- Laboratory of Normal and Malignant Hematopoiesis and Pathobiology of Myeloma and Lymphoma. Veneto Institute of Molecular Medicine (VIMM), Padova, Italy
| | - Francesco Piazza
- Department of Medicine, Division of Hematology, University of Padova, Italy
- Laboratory of Normal and Malignant Hematopoiesis and Pathobiology of Myeloma and Lymphoma. Veneto Institute of Molecular Medicine (VIMM), Padova, Italy
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Ghorbani N, Yaghubi R, Davoodi J, Pahlavan S. How does caspases regulation play role in cell decisions? apoptosis and beyond. Mol Cell Biochem 2023:10.1007/s11010-023-04870-5. [PMID: 37976000 DOI: 10.1007/s11010-023-04870-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Accepted: 10/05/2023] [Indexed: 11/19/2023]
Abstract
Caspases are a family of cysteine proteases, and the key factors behind the cellular events which occur during apoptosis and inflammation. However, increasing evidence shows the non-conventional pro-survival action of apoptotic caspases in crucial processes. These cellular events include cell proliferation, differentiation, and migration, which may appear in the form of metastasis, and chemotherapy resistance in cancerous situations. Therefore, there should be a precise and strict control of caspases activity, perhaps through maintaining the threshold below the required levels for apoptosis. Thus, understanding the regulators of caspase activities that render apoptotic caspases as non-apoptotic is of paramount importance both mechanistically and clinically. Furthermore, the functions of apoptotic caspases are affected by numerous post-translational modifications. In the present mini-review, we highlight the various mechanisms that directly impact caspases with respect to their anti- or non-apoptotic functions. In this regard, post-translational modifications (PTMs), isoforms, subcellular localization, transient activity, substrate availability, substrate selection, and interaction-mediated regulations are discussed.
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Affiliation(s)
- Negar Ghorbani
- Department of Biochemistry, Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran
| | - Roham Yaghubi
- Department of Biotechnology, College of Science, University of Tehran, Tehran, Iran
| | - Jamshid Davoodi
- Department of Biochemistry, Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran.
| | - Sara Pahlavan
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran.
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Li L, Li D, Sun D, Zhang X, Lei W, Wu M, Huang Q, Nian X, Dai W, Lu X, Zhou Z, Zhu Y, Xiao Y, Zhang L, Mo W, Liu Z, Zhang L. Nuclear import carrier Hikeshi cooperates with HSP70 to promote murine oligodendrocyte differentiation and CNS myelination. Dev Cell 2023; 58:2275-2291.e6. [PMID: 37865085 DOI: 10.1016/j.devcel.2023.09.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 08/14/2023] [Accepted: 09/18/2023] [Indexed: 10/23/2023]
Abstract
Dysregulation of factors in nucleocytoplasmic transport is closely linked to neural developmental diseases. Mutation in Hikeshi, encoding a nonconventional nuclear import carrier of heat shock protein 70 family (HSP70s), leads to inherited leukodystrophy; however, the pathological mechanisms remain elusive. Here, we showed that Hikeshi is essential for central nervous system (CNS) myelination. Deficiency of Hikeshi, which is observed in inherited leukodystrophy patients, resulted in murine oligodendrocyte maturation arrest. Hikeshi is required for nuclear translocation of HSP70s upon differentiation. Nuclear-localized HSP70 promotes murine oligodendrocyte differentiation and remyelination after white matter injury. Mechanistically, HSP70s interacted with SOX10 in the nucleus and protected it from E3 ligase FBXW7-mediated ubiquitination degradation. Importantly, we discovered that Hikeshi-dependent hyperthermia therapy, which induces nuclear import of HSP70s, promoted oligodendrocyte differentiation and remyelination following in vivo demyelinating injury. Overall, these findings demonstrate that Hikeshi-mediated nuclear translocation of HSP70s is essential for myelinogenesis and provide insights into pathological mechanisms of Hikeshi-related leukodystrophy.
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Affiliation(s)
- Li Li
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Department of Gynaecology and Obstetrics, Women and Children's Hospital Affiliated to Xiamen University, Faculty of Medicine and Life Sciences, Xiamen University, Xiamen 361102, Fujian, China
| | - Daopeng Li
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Department of Gynaecology and Obstetrics, Women and Children's Hospital Affiliated to Xiamen University, Faculty of Medicine and Life Sciences, Xiamen University, Xiamen 361102, Fujian, China
| | - Di Sun
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Department of Gynaecology and Obstetrics, Women and Children's Hospital Affiliated to Xiamen University, Faculty of Medicine and Life Sciences, Xiamen University, Xiamen 361102, Fujian, China
| | - Xueqin Zhang
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Department of Gynaecology and Obstetrics, Women and Children's Hospital Affiliated to Xiamen University, Faculty of Medicine and Life Sciences, Xiamen University, Xiamen 361102, Fujian, China
| | - Wanying Lei
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Department of Gynaecology and Obstetrics, Women and Children's Hospital Affiliated to Xiamen University, Faculty of Medicine and Life Sciences, Xiamen University, Xiamen 361102, Fujian, China
| | - Mei Wu
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Department of Gynaecology and Obstetrics, Women and Children's Hospital Affiliated to Xiamen University, Faculty of Medicine and Life Sciences, Xiamen University, Xiamen 361102, Fujian, China
| | - Qiuying Huang
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Department of Gynaecology and Obstetrics, Women and Children's Hospital Affiliated to Xiamen University, Faculty of Medicine and Life Sciences, Xiamen University, Xiamen 361102, Fujian, China
| | - Ximing Nian
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Department of Gynaecology and Obstetrics, Women and Children's Hospital Affiliated to Xiamen University, Faculty of Medicine and Life Sciences, Xiamen University, Xiamen 361102, Fujian, China
| | - Wenxiu Dai
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Department of Gynaecology and Obstetrics, Women and Children's Hospital Affiliated to Xiamen University, Faculty of Medicine and Life Sciences, Xiamen University, Xiamen 361102, Fujian, China
| | - Xiaoyun Lu
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Department of Gynaecology and Obstetrics, Women and Children's Hospital Affiliated to Xiamen University, Faculty of Medicine and Life Sciences, Xiamen University, Xiamen 361102, Fujian, China
| | - Zhihao Zhou
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Department of Gynaecology and Obstetrics, Women and Children's Hospital Affiliated to Xiamen University, Faculty of Medicine and Life Sciences, Xiamen University, Xiamen 361102, Fujian, China
| | - Yanqin Zhu
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Department of Gynaecology and Obstetrics, Women and Children's Hospital Affiliated to Xiamen University, Faculty of Medicine and Life Sciences, Xiamen University, Xiamen 361102, Fujian, China
| | - Yunshan Xiao
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Department of Gynaecology and Obstetrics, Women and Children's Hospital Affiliated to Xiamen University, Faculty of Medicine and Life Sciences, Xiamen University, Xiamen 361102, Fujian, China
| | - Ling Zhang
- Department of Clinic Laboratory, The Affiliated Chenggong Hospital, School of Medicine, Xiamen University, Xiamen 361102, Fujian, China
| | - Wei Mo
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Department of Gynaecology and Obstetrics, Women and Children's Hospital Affiliated to Xiamen University, Faculty of Medicine and Life Sciences, Xiamen University, Xiamen 361102, Fujian, China
| | - Zhixiong Liu
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Department of Gynaecology and Obstetrics, Women and Children's Hospital Affiliated to Xiamen University, Faculty of Medicine and Life Sciences, Xiamen University, Xiamen 361102, Fujian, China
| | - Liang Zhang
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Department of Gynaecology and Obstetrics, Women and Children's Hospital Affiliated to Xiamen University, Faculty of Medicine and Life Sciences, Xiamen University, Xiamen 361102, Fujian, China.
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10
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Abdolalian M, Zarif MN, Javan M. The role of extracellular vesicles on the occurrence of clinical complications in β-thalassemia. Exp Hematol 2023; 127:28-39. [PMID: 37652128 DOI: 10.1016/j.exphem.2023.08.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Revised: 08/20/2023] [Accepted: 08/27/2023] [Indexed: 09/02/2023]
Abstract
Thalassemia is the most common monogenic disorder of red blood cells (RBCs) caused by defects in the synthesis of globin chains. Thalassemia phenotypes have a wide spectrum of clinical manifestations and vary from severe anemia requiring regular blood transfusions to clinically asymptomatic states. Ineffective erythropoiesis and toxicity caused by iron overload are major factors responsible for various complications in thalassemia patients, especially patients with β-thalassemia major (β-TM). Common complications in patients with thalassemia include iron overload, thrombosis, cardiac morbidity, vascular dysfunction, inflammation, and organ dysfunction. Extracellular vesicles (EVs) are small membrane vesicles released from various cells' plasma membranes due to activation and apoptosis. Based on studies, EVs play a role in various processes, including clot formation, vascular damage, and proinflammatory processes. In recent years, they have also been studied as biomarkers in the diagnosis and prognosis of diseases. Considering the high concentration of EVs in thalassemia and their role in cellular processes, this study reviews the role of EVs in the common complications of patients with β-thalassemia for the first time.
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Affiliation(s)
- Mehrnaz Abdolalian
- Blood Transfusion Research Center, High Institute for Research and Education in Transfusion Medicine, Iranian Blood Transfusion Organization (IBTO), Tehran, Iran; Ramsar Campus, Mazandaran University of Medical Sciences, Ramsar, Iran
| | - Mahin Nikogouftar Zarif
- Blood Transfusion Research Center, High Institute for Research and Education in Transfusion Medicine, Iranian Blood Transfusion Organization (IBTO), Tehran, Iran
| | - Mohammadreza Javan
- Blood Transfusion Research Center, High Institute for Research and Education in Transfusion Medicine, Iranian Blood Transfusion Organization (IBTO), Tehran, Iran; Department of Anatomy, Physiology and Pharmacology, College of Medicine, University of Saskatchewan, Saskatoon, SK, Canada.
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11
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Wilkes MC, Chae HD, Scanlon V, Cepika AM, Wentworth EP, Saxena M, Eskin A, Chen Z, Glader B, Grazia Roncarolo M, Nelson SF, Sakamoto KM. SATB1 Chromatin Loops Regulate Megakaryocyte/Erythroid Progenitor Expansion by Facilitating HSP70 and GATA1 Induction. Stem Cells 2023; 41:560-569. [PMID: 36987811 PMCID: PMC10267687 DOI: 10.1093/stmcls/sxad025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Accepted: 02/21/2023] [Indexed: 03/30/2023]
Abstract
Diamond Blackfan anemia (DBA) is an inherited bone marrow failure syndrome associated with severe anemia, congenital malformations, and an increased risk of developing cancer. The chromatin-binding special AT-rich sequence-binding protein-1 (SATB1) is downregulated in megakaryocyte/erythroid progenitors (MEPs) in patients and cell models of DBA, leading to a reduction in MEP expansion. Here we demonstrate that SATB1 expression is required for the upregulation of the critical erythroid factors heat shock protein 70 (HSP70) and GATA1 which accompanies MEP differentiation. SATB1 binding to specific sites surrounding the HSP70 genes promotes chromatin loops that are required for the induction of HSP70, which, in turn, promotes GATA1 induction. This demonstrates that SATB1, although gradually downregulated during myelopoiesis, maintains a biological function in early myeloid progenitors.
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Affiliation(s)
- Mark C Wilkes
- Division of Hematology/Oncology, Department of Pediatrics, Stanford University, Stanford, CA, USA
| | - Hee-Don Chae
- Division of Hematology/Oncology, Department of Pediatrics, Stanford University, Stanford, CA, USA
| | - Vanessa Scanlon
- Department of Laboratory Medicine, Yale Stem Cell Center, Yale Cooperative Center of Excellence in Hematology, Yale School of Medicine, New Haven, CT, USA
| | - Alma-Martina Cepika
- Institute for Stem Cell Biology and Regenerative Medicine, Department of Genetics, Stanford University School of Medicine, Stanford, CA, USA
| | - Ethan P Wentworth
- Division of Hematology/Oncology, Department of Pediatrics, Stanford University, Stanford, CA, USA
| | - Mallika Saxena
- Division of Hematology/Oncology, Department of Pediatrics, Stanford University, Stanford, CA, USA
| | - Ascia Eskin
- Department of Pathology and Laboratory Medicine¸ David Geffen School of Medicine, University of California, Los Angeles, CA, USA
| | - Zugen Chen
- Department of Pathology and Laboratory Medicine¸ David Geffen School of Medicine, University of California, Los Angeles, CA, USA
| | - Bert Glader
- Division of Hematology/Oncology, Department of Pediatrics, Stanford University, Stanford, CA, USA
| | - Maria Grazia Roncarolo
- Institute for Stem Cell Biology and Regenerative Medicine, Department of Genetics, Stanford University School of Medicine, Stanford, CA, USA
| | - Stanley F Nelson
- Department of Pathology and Laboratory Medicine¸ David Geffen School of Medicine, University of California, Los Angeles, CA, USA
| | - Kathleen M Sakamoto
- Division of Hematology/Oncology, Department of Pediatrics, Stanford University, Stanford, CA, USA
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12
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Radak M, Ghamari N, Fallahi H. Common factors among three types of cells aged in mice. Biogerontology 2023; 24:363-375. [PMID: 37081236 DOI: 10.1007/s10522-023-10035-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Accepted: 04/05/2023] [Indexed: 04/22/2023]
Abstract
The greatest risk factor for the formation of numerous significant chronic disorders is aging. Understanding the core molecular underpinnings of aging can help to slow down the inevitable process. Systematic study of gene expression or DNA methylation data is possible at the transcriptomics and epigenetics levels. DNA methylation and gene expression are both affected by aging. Gene expression is an important element in the aging of Homo sapiens. In this work, we evaluated the expression of differentially expressed genes (DEGs), proteins, and transcription factors (TFs) in three different types of cells in mice: antibody-secreting cells, cardiac mesenchymal stromal cells, and skeletal muscle cells. The goal of this article is to uncover a common cause during aging among these cells in order to increase understanding about establishing complete techniques for preventing aging and improving people's quality of life. We conducted a comprehensive network-based investigation to establish which genes and proteins are shared by the three different types of aged cells. Our findings clearly indicated that aging induces gene dysregulation in immune, pharmacological, and apoptotic pathways. Furthermore, our research developed a list of hub genes with differential expression in aging responses that should be investigated further to discover viable anti-aging treatments.
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Affiliation(s)
- Mehran Radak
- Department of Biology, School of Sciences, Razi University, Baq-e-Abrisham, 6714967346, Kermanshah, Islamic Republic of Iran
| | - Nakisa Ghamari
- Department of Biology, School of Sciences, Razi University, Baq-e-Abrisham, 6714967346, Kermanshah, Islamic Republic of Iran
| | - Hossein Fallahi
- Department of Biology, School of Sciences, Razi University, Baq-e-Abrisham, 6714967346, Kermanshah, Islamic Republic of Iran.
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13
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Zuñiga-Hernandez J, Meneses C, Bastias M, Allende ML, Glavic A. Drosophila DAxud1 Has a Repressive Transcription Activity on Hsp70 and Other Heat Shock Genes. Int J Mol Sci 2023; 24:ijms24087485. [PMID: 37108646 PMCID: PMC10138878 DOI: 10.3390/ijms24087485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 04/11/2023] [Accepted: 04/12/2023] [Indexed: 04/29/2023] Open
Abstract
Drosophila melanogaster DAxud1 is a transcription factor that belongs to the Cysteine Serine Rich Nuclear Protein (CSRNP) family, conserved in metazoans, with a transcriptional transactivation activity. According to previous studies, this protein promotes apoptosis and Wnt signaling-mediated neural crest differentiation in vertebrates. However, no analysis has been conducted to determine what other genes it might control, especially in connection with cell survival and apoptosis. To partly answer this question, this work analyzes the role of Drosophila DAxud1 using Targeted-DamID-seq (TaDa-seq), which allows whole genome screening to determine in which regions it is most frequently found. This analysis confirmed the presence of DAxud1 in groups of pro-apoptotic and Wnt pathway genes, as previously described; furthermore, stress resistance genes that coding heat shock protein (HSP) family genes were found as hsp70, hsp67, and hsp26. The enrichment of DAxud1 also identified a DNA-binding motif (AYATACATAYATA) that is frequently found in the promoters of these genes. Surprisingly, the following analyses demonstrated that DAxud1 exerts a repressive role on these genes, which are necessary for cell survival. This is coupled with the pro-apoptotic and cell cycle arrest roles of DAxud1, in which repression of hsp70 complements the maintenance of tissue homeostasis through cell survival modulation.
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Affiliation(s)
- Jorge Zuñiga-Hernandez
- Millennium Institute Center for Genome Regulation (CGR), Department of Biology, Faculty of Sciences, University of Chile, Santiago 7800003, Chile
| | - Claudio Meneses
- Millennium Institute Center for Genome Regulation (CGR), Department of Biology, Faculty of Sciences, University of Chile, Santiago 7800003, Chile
- Millennium Nucleus Development of Super Adaptable Plants (MN-SAP), Santiago 8331150, Chile
- Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago 8331150, Chile
| | - Macarena Bastias
- Centro de Biotecnología vegetal, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Santiago 8370035, Chile
| | - Miguel L Allende
- Millennium Institute Center for Genome Regulation (CGR), Department of Biology, Faculty of Sciences, University of Chile, Santiago 7800003, Chile
| | - Alvaro Glavic
- Millennium Institute Center for Genome Regulation (CGR), Department of Biology, Faculty of Sciences, University of Chile, Santiago 7800003, Chile
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14
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Peng Y, Liang L, Zhang H, Liu H, Zhang G, Sun S, Guo X, Wang Y, Hu B, Liu R, Li Y, Nie L, Zhang J, Ye M, Ginzburg YZ, Lin Z, Yin B, Chen H, Liu J. Single-cell profiling of ineffective erythropoiesis in a mouse model of β-thalassaemia intermedia. Br J Haematol 2023; 201:982-994. [PMID: 36872867 DOI: 10.1111/bjh.18706] [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: 12/12/2022] [Revised: 02/05/2023] [Accepted: 02/08/2023] [Indexed: 03/07/2023]
Abstract
Beta-thalassaemia is an inherited haemoglobin disorder characterised by ineffective erythropoiesis (IE). The detailed pathogenesis of IE remains unclear. In this study, we used single-cell RNA sequencing (scRNA-seq) to examine IE in Th3/+ β-thalassaemic mice. The results showed that the erythroid group was remarkably expanded, and genes involved in biological processes such as iron metabolism, haeme synthesis, protein folding, and response to heat were significantly upregulated from erythroid progenitors to reticulocytes in β-thalassaemic mice. In particular, we identified a unique cell population close to reticulocytes, named ThReticulocytes, characterised by a high level of heat shock protein 70 (Hsp70) expression and dysregulation of iron metabolism and haeme synthesis signalling. Treatment of β-thalassaemic mice with the haeme oxygenase inhibitor tin-mesoporphyrin effectively improved the iron disorder and IE, and the ThReticulocyte population and Hsp70 expression were significantly suppressed. This study revealed in detail the progression of IE at the single-cell level and possibly provided clues to find therapeutic targets in thalassaemia.
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Affiliation(s)
- Yuanliang Peng
- Department of Hematology, the Second Xiangya Hospital, Central South University, Changsha, China.,Molecular Biology Research Center, Center for Medical Genetics, School of Life Sciences, Central South University, Changsha, China.,Hunan Province Key Laboratory of Basic and Applied Hematology, Central South University, Changsha, China
| | - Long Liang
- Department of Hematology, the Second Xiangya Hospital, Central South University, Changsha, China.,Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China
| | - Haihang Zhang
- Department of Hematology, the Second Xiangya Hospital, Central South University, Changsha, China
| | - Hong Liu
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China
| | - Guanxiong Zhang
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China
| | - Shuming Sun
- Department of Hematology, the Second Xiangya Hospital, Central South University, Changsha, China
| | - Xianfeng Guo
- Department of Hematology, the Second Xiangya Hospital, Central South University, Changsha, China
| | - Yanpeng Wang
- Department of Hematology, the Second Xiangya Hospital, Central South University, Changsha, China
| | - Bin Hu
- Department of Hematology, the Second Xiangya Hospital, Central South University, Changsha, China
| | - Rui Liu
- Molecular Biology Research Center, Center for Medical Genetics, School of Life Sciences, Central South University, Changsha, China
| | - Yanan Li
- Department of Hematology, the Second Xiangya Hospital, Central South University, Changsha, China
| | - Ling Nie
- Xiangya Hospital, Central South University, Changsha, China
| | - Ji Zhang
- Department of Rheumatology, The First Affiliated Hospital of University of South China, Hengyang, China
| | - Mao Ye
- Molecular Science and Biomedicine Laboratory, State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Biology, College of Chemistry and Chemical Engineering, Hunan University, Changsha, China
| | - Yelena Z Ginzburg
- Division of Hematology and Medical Oncology, Icahn School of Medicine at Mount Sinai, New York City, New York, USA
| | - Zhong Lin
- Reproductive Hospital of Guangxi Zhuang Autonomous Region, Nanning, China
| | - Biao Yin
- Liuzhou Maternity and Child Healthcare Hospital, Liuzhou, China
| | - Huiyong Chen
- Department of Hematology, the Second Xiangya Hospital, Central South University, Changsha, China.,Molecular Biology Research Center, Center for Medical Genetics, School of Life Sciences, Central South University, Changsha, China.,Hunan Province Key Laboratory of Basic and Applied Hematology, Central South University, Changsha, China
| | - Jing Liu
- Department of Hematology, the Second Xiangya Hospital, Central South University, Changsha, China
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15
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Aid Z, Robert E, Lopez CK, Bourgoin M, Boudia F, Le Mene M, Riviere J, Baille M, Benbarche S, Renou L, Fagnan A, Thirant C, Federici L, Touchard L, Lecluse Y, Jetten A, Geoerger B, Lapillonne H, Solary E, Gaudry M, Meshinchi S, Pflumio F, Auberger P, Lobry C, Petit A, Jacquel A, Mercher T. High caspase 3 and vulnerability to dual BCL2 family inhibition define ETO2::GLIS2 pediatric leukemia. Leukemia 2023; 37:571-579. [PMID: 36585521 PMCID: PMC10583253 DOI: 10.1038/s41375-022-01800-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 12/09/2022] [Accepted: 12/13/2022] [Indexed: 12/31/2022]
Abstract
Pediatric acute myeloid leukemia expressing the ETO2::GLIS2 fusion oncogene is associated with dismal prognosis. Previous studies have shown that ETO2::GLIS2 can efficiently induce leukemia development associated with strong transcriptional changes but those amenable to pharmacological targeting remained to be identified. By studying an inducible ETO2::GLIS2 cellular model, we uncovered that de novo ETO2::GLIS2 expression in human cells led to increased CASP3 transcription, CASP3 activation, and cell death. Patient-derived ETO2::GLIS2+ leukemic cells expressed both high CASP3 and high BCL2. While BCL2 inhibition partly inhibited ETO2::GLIS2+ leukemic cell proliferation, BH3 profiling revealed that it also sensitized these cells to MCL1 inhibition indicating a functional redundancy between BCL2 and MCL1. We further show that combined inhibition of BCL2 and MCL1 is mandatory to abrogate disease progression using in vivo patient-derived xenograft models. These data reveal that a transcriptional consequence of ETO2::GLIS2 expression includes a positive regulation of the pro-apoptotic CASP3 and associates with a vulnerability to combined targeting of two BCL2 family members providing a novel therapeutic perspective for this aggressive pediatric AML subgroup.
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Affiliation(s)
- Zakia Aid
- INSERM U1170, Gustave Roussy Cancer Campus, Université Paris Saclay, PEDIAC program, 94800, Villejuif, France
- Equipe labellisée Ligue Nationale Contre le Cancer, 75013, Paris, France
| | - Elie Robert
- INSERM U1170, Gustave Roussy Cancer Campus, Université Paris Saclay, PEDIAC program, 94800, Villejuif, France
- Equipe labellisée Ligue Nationale Contre le Cancer, 75013, Paris, France
| | - Cécile K Lopez
- INSERM U1170, Gustave Roussy Cancer Campus, Université Paris Saclay, PEDIAC program, 94800, Villejuif, France.
- Equipe labellisée Ligue Nationale Contre le Cancer, 75013, Paris, France.
- Wellcome Trust-MRC Cambridge Stem Cell Institute, Cambridge, UK.
- Department of Haematology, University of Cambridge, Cambridge, UK.
| | - Maxence Bourgoin
- Team "Myeloid Malignancies and Multiple Myeloma", Université Côte d'Azur, INSERM U1065/C3M, 06204, Nice, France
| | - Fabien Boudia
- INSERM U1170, Gustave Roussy Cancer Campus, Université Paris Saclay, PEDIAC program, 94800, Villejuif, France
- Equipe labellisée Ligue Nationale Contre le Cancer, 75013, Paris, France
| | - Melchior Le Mene
- INSERM U1170, Gustave Roussy Cancer Campus, Université Paris Saclay, PEDIAC program, 94800, Villejuif, France
- Equipe labellisée Ligue Nationale Contre le Cancer, 75013, Paris, France
| | - Julie Riviere
- INSERM U1170, Gustave Roussy Cancer Campus, Université Paris Saclay, PEDIAC program, 94800, Villejuif, France
- Equipe labellisée Ligue Nationale Contre le Cancer, 75013, Paris, France
| | - Marie Baille
- INSERM U1170, Gustave Roussy Cancer Campus, Université Paris Saclay, PEDIAC program, 94800, Villejuif, France
- Equipe labellisée Ligue Nationale Contre le Cancer, 75013, Paris, France
| | - Salima Benbarche
- INSERM U1170, Gustave Roussy Cancer Campus, Université Paris Saclay, PEDIAC program, 94800, Villejuif, France
| | - Laurent Renou
- Unité de Recherche (UMR)-E008 Stabilité Génétique, Cellules Souches et Radiations, Team Niche and Cancer in Hematopoiesis, Commissariat à l'Energie Atomique et aux Energies Alternatives (CEA), Université de Paris-Université Paris-Saclay, Fontenay-aux-Roses, 92260, France
| | - Alexandre Fagnan
- INSERM U1170, Gustave Roussy Cancer Campus, Université Paris Saclay, PEDIAC program, 94800, Villejuif, France
- Equipe labellisée Ligue Nationale Contre le Cancer, 75013, Paris, France
| | - Cécile Thirant
- INSERM U1170, Gustave Roussy Cancer Campus, Université Paris Saclay, PEDIAC program, 94800, Villejuif, France
- Equipe labellisée Ligue Nationale Contre le Cancer, 75013, Paris, France
| | - Laetitia Federici
- INSERM U1170, Gustave Roussy Cancer Campus, Université Paris Saclay, PEDIAC program, 94800, Villejuif, France
- Equipe labellisée Ligue Nationale Contre le Cancer, 75013, Paris, France
| | - Laure Touchard
- Unité Mixte de Service - Analyse Moléculaire Modélisation et Imagerie de la maladie Cancéreuse (UMS AMMICA), Gustave Roussy Cancer Campus, 94800, Villejuif, France
| | - Yann Lecluse
- Unité Mixte de Service - Analyse Moléculaire Modélisation et Imagerie de la maladie Cancéreuse (UMS AMMICA), Gustave Roussy Cancer Campus, 94800, Villejuif, France
| | - Anton Jetten
- Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC, USA
| | - Birgit Geoerger
- Gustave Roussy Cancer Campus, Pediatric and Adolescent Oncology Department, INSERM U1015, Université Paris Saclay, 94800, Villejuif, France
| | - Hélène Lapillonne
- Pediatric Hematology and Oncology Department, Armand Trousseau Hospital, AP-HP, Sorbonne University, UMRS_938, CONECT-AML, 75012, Paris, France
| | - Eric Solary
- INSERM U1287, Gustave Roussy Cancer Campus, 94800, Villejuif, France
| | - Muriel Gaudry
- INSERM U1170, Gustave Roussy Cancer Campus, Université Paris Saclay, PEDIAC program, 94800, Villejuif, France
- Equipe labellisée Ligue Nationale Contre le Cancer, 75013, Paris, France
| | - Soheil Meshinchi
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Françoise Pflumio
- Unité de Recherche (UMR)-E008 Stabilité Génétique, Cellules Souches et Radiations, Team Niche and Cancer in Hematopoiesis, Commissariat à l'Energie Atomique et aux Energies Alternatives (CEA), Université de Paris-Université Paris-Saclay, Fontenay-aux-Roses, 92260, France
- OPALE Carnot Institute, The Organization for Partnerships in Leukemia, 75010, Paris, France
| | - Patrick Auberger
- Team "Myeloid Malignancies and Multiple Myeloma", Université Côte d'Azur, INSERM U1065/C3M, 06204, Nice, France
- OPALE Carnot Institute, The Organization for Partnerships in Leukemia, 75010, Paris, France
| | - Camille Lobry
- INSERM U1170, Gustave Roussy Cancer Campus, Université Paris Saclay, PEDIAC program, 94800, Villejuif, France
- INSERM U944, CNRS UMR7212, Institut de Recherche Saint Louis and Université de Paris, 75010, Paris, France
| | - Arnaud Petit
- Gustave Roussy Cancer Campus, Pediatric and Adolescent Oncology Department, INSERM U1015, Université Paris Saclay, 94800, Villejuif, France
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Arnaud Jacquel
- Team "Myeloid Malignancies and Multiple Myeloma", Université Côte d'Azur, INSERM U1065/C3M, 06204, Nice, France.
| | - Thomas Mercher
- INSERM U1170, Gustave Roussy Cancer Campus, Université Paris Saclay, PEDIAC program, 94800, Villejuif, France.
- Equipe labellisée Ligue Nationale Contre le Cancer, 75013, Paris, France.
- OPALE Carnot Institute, The Organization for Partnerships in Leukemia, 75010, Paris, France.
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16
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Penglong T, Saensuwanna A, Pholngam N, Tansila N, Buncherd H, Srinoun K. BACH1 regulates erythrophagocytosis and iron-recycling in β-thalassemia. Genes Cells 2023; 28:211-225. [PMID: 36565308 DOI: 10.1111/gtc.13004] [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: 08/31/2022] [Revised: 12/15/2022] [Accepted: 12/22/2022] [Indexed: 12/25/2022]
Abstract
Macrophages play essential roles in erythrophagocytosis and iron recycling. β-thalassemia is characterized by a genetic defect in hemoglobin synthesis, which increases the rate of iron recycling. We previously showed that reduced expression of the BTB and CNC homolog 1 (BACH1) gene leads to increased phagocytosis of abnormal RBCs by activated monocytes. However, the mechanisms underlying this abnormal RBC clearance remained unclear. Herein, the spleen and bone marrow cells of β-thalassemic mice were examined for erythrophagocytosis CD markers and iron-recycling genes. Higher expression levels of CD47 and CD163 on RBCs and macrophages, respectively, were observed in β-thalassemic mice than in wild-type cells. The decreased expression of BACH1 caused an increase in Nrf2, Spic, Slc40a1, and HMOX1 expression in splenic red pulp macrophages of thalassemic mice. To investigate BACH1 regulation, a macrophage cell line was transfected with BACH1-siRNA. Decreased BACH1 expression caused an increase in CD163 expression; however, the expression levels were lower when the cells were cultured in media supplemented with β-thalassemia/HbE patient plasma. Additionally, the iron recycling-related genes SPIC, SLC40A1, and HMOX1 were significantly upregulated in BACH1-suppressed macrophages. Our findings provide insights into BACH1 regulation, which plays an important role in erythrophagocytosis and iron recycling in thalassemic macrophages.
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Affiliation(s)
- Tipparat Penglong
- Department of Pathology, Faculty of Medicine, Prince of Songkla University, Songkhla, Thailand
| | - Apisara Saensuwanna
- Faculty of Medical Technology, Prince of Songkla University, Songkhla, Thailand
| | - Nuttanan Pholngam
- Molecular Medicine Graduate Program, Faculty of Science, Mahidol University, Bangkok, Thailand.,Thalassemia Research Center, Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom, Thailand
| | - Natta Tansila
- Faculty of Medical Technology, Prince of Songkla University, Songkhla, Thailand
| | - Hansuk Buncherd
- Faculty of Medical Technology, Prince of Songkla University, Songkhla, Thailand
| | - Kanitta Srinoun
- Faculty of Medical Technology, Prince of Songkla University, Songkhla, Thailand
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17
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Caspase Inhibition Modulates Monocyte-Derived Macrophage Polarization in Damaged Tissues. Int J Mol Sci 2023; 24:ijms24044151. [PMID: 36835566 PMCID: PMC9964254 DOI: 10.3390/ijms24044151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Revised: 02/16/2023] [Accepted: 02/16/2023] [Indexed: 02/22/2023] Open
Abstract
Circulating monocytes are recruited in damaged tissues to generate macrophages that modulate disease progression. Colony-stimulating factor-1 (CSF-1) promotes the generation of monocyte-derived macrophages, which involves caspase activation. Here, we demonstrate that activated caspase-3 and caspase-7 are located to the vicinity of the mitochondria in CSF1-treated human monocytes. Active caspase-7 cleaves p47PHOX at aspartate 34, which promotes the formation of the NADPH (nicotinamide adenine dinucleotide phosphate) oxidase complex NOX2 and the production of cytosolic superoxide anions. Monocyte response to CSF-1 is altered in patients with a chronic granulomatous disease, which are constitutively defective in NOX2. Both caspase-7 down-regulation and radical oxygen species scavenging decrease the migration of CSF-1-induced macrophages. Inhibition or deletion of caspases prevents the development of lung fibrosis in mice exposed to bleomycin. Altogether, a non-conventional pathway that involves caspases and activates NOX2 is involved in CSF1-driven monocyte differentiation and could be therapeutically targeted to modulate macrophage polarization in damaged tissues.
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18
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Liu S, Pei K, Chen L, Wu J, Chen Q, Zhang J, Zhang H, Wang C. De novo intronic GATA1 mutation leads to diamond-blackfan anemia like disease. Front Genet 2023; 14:1068923. [PMID: 36845397 PMCID: PMC9950261 DOI: 10.3389/fgene.2023.1068923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Accepted: 01/20/2023] [Indexed: 02/12/2023] Open
Abstract
GATA1 is required for normal erythropoiesis. Exonic/intronic GATA1 mutations causes Diamond-Blackfan Anemia (DBA)-like disease. Herein, we present a case of a 5-year-old boy with anemia of unknown etiology. Whole-exome sequencing revealed a de novo GATA1 c.220 + 1G>C mutation. The reporter gene assay revealed that such mutations did not affect on GATA1 transcriptional activity. The normal transcription of GATA1 was disturbed, as evidenced by increased expression of the shorter GATA1 isoform. RDDS prediction analysis revealed that abnormal GATA1 splicing might be the underlying mechanism disrupting GATA1 transcription, thereby impairing erythropoiesis. Prednisone treatment significantly improved erythropoiesis, evidenced by increased hemoglobin and reticulocyte counts.
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Affiliation(s)
- Shan Liu
- Department of Hematology & Oncology, Fujian Children’s Hospital, Fujian Branch of Shanghai Children’s Medical Center Affiliated to Shanghai Jiaotong University School of Medicine, Fuzhou, China
| | - Kunlin Pei
- Shanghai Children’s Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China,Department of Hematology/Oncology, Guangzhou Women and Children’s Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Lu Chen
- Department of Hematology & Oncology, Fujian Children’s Hospital, Fujian Branch of Shanghai Children’s Medical Center Affiliated to Shanghai Jiaotong University School of Medicine, Fuzhou, China
| | - Jing Wu
- Shanghai Children’s Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qiuling Chen
- Department of Hematology & Oncology, Fujian Children’s Hospital, Fujian Branch of Shanghai Children’s Medical Center Affiliated to Shanghai Jiaotong University School of Medicine, Fuzhou, China
| | - Jinyan Zhang
- Department of Hematology & Oncology, Fujian Children’s Hospital, Fujian Branch of Shanghai Children’s Medical Center Affiliated to Shanghai Jiaotong University School of Medicine, Fuzhou, China,Fujian Medical University, Fuzhou, China
| | - Hui Zhang
- Department of Hematology & Oncology, Fujian Children’s Hospital, Fujian Branch of Shanghai Children’s Medical Center Affiliated to Shanghai Jiaotong University School of Medicine, Fuzhou, China,Shanghai Children’s Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China,*Correspondence: Chengyi Wang, ; Hui Zhang,
| | - Chengyi Wang
- Department of Hematology & Oncology, Fujian Children’s Hospital, Fujian Branch of Shanghai Children’s Medical Center Affiliated to Shanghai Jiaotong University School of Medicine, Fuzhou, China,*Correspondence: Chengyi Wang, ; Hui Zhang,
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19
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Lamarque M, Gautier EF, Rodrigues F, Guillem F, Bayard E, Broussard C, Maciel Trovati T, Arlet JB, Mayeux P, Hermine O, Courtois G. Role of Caspase-10-P13tBID axis in erythropoiesis regulation. Cell Death Differ 2023; 30:208-220. [PMID: 36202990 PMCID: PMC9883265 DOI: 10.1038/s41418-022-01066-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 09/09/2022] [Accepted: 09/12/2022] [Indexed: 01/29/2023] Open
Abstract
Red blood cell production is negatively controlled by the rate of apoptosis at the stage of CFU-E/pro-erythroblast differentiation, depending on the balance between erythropoietin (EPO) levels and activation of the Fas/FasL pathway. At this stage, activation of transient caspases through depolarization via mitochondrial outer membrane permeabilization (MOMP) is also required for terminal erythroid differentiation. Molecular mechanisms regulating the differential levels of MOMP during differentiation and apoptosis, however, remain poorly understood. Here we show a novel and essential role for the caspase-10-P13-tBID axis in erythroid terminal differentiation. Caspase-10 (but not caspase-8, which is activated during apoptosis) is activated at the early stages of erythroid terminal differentiation leading to the cleavage of P22-BID into P18-tBID, and later into P13-tBID. Erythropoietin (EPO) by inducing casein kinase I alpha (CKIα) expression, which in turn phosphorylates P18-tBID, prevents the generation of MYR-P15-tBID (leading to apoptosis) and allows the generation of P13-tBID by caspase-10. Unlike P15-tBID, P13-tBID is not myristoylated and as such, does not irreversibly anchor the mitochondrial membrane resulting in a transient MOMP. Likewise, transduction of a P13-tBID fragment induces rapid and strong erythroid terminal differentiation. Thus, EPO modulates the pattern of BID cleavage to control the level of MOMP and determines the fate of erythroblasts between apoptosis and differentiation. This pathway is impaired in 5q- myelodysplastic syndromes because of CK1α haplo-insufficiency and may contribute to erythroid differentiation arrest and high sensitivity of this disease to lenalidomide (LEN).
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Affiliation(s)
- Mathilde Lamarque
- grid.508487.60000 0004 7885 7602INSERM U1163, Institut Imagine, Université Paris-Cité, Paris, France ,grid.484422.cLaboratory of Excellence GR-Ex, Paris, France
| | - Emilie-Fleur Gautier
- grid.484422.cLaboratory of Excellence GR-Ex, Paris, France ,grid.7429.80000000121866389Institut Cochin, Département Développement, Reproduction, Cancer, CNRS INSERM UMR, 8104 Paris, France
| | - François Rodrigues
- grid.508487.60000 0004 7885 7602INSERM U1163, Institut Imagine, Université Paris-Cité, Paris, France ,grid.484422.cLaboratory of Excellence GR-Ex, Paris, France
| | - Flavia Guillem
- grid.508487.60000 0004 7885 7602INSERM U1163, Institut Imagine, Université Paris-Cité, Paris, France ,grid.484422.cLaboratory of Excellence GR-Ex, Paris, France
| | - Elisa Bayard
- grid.508487.60000 0004 7885 7602INSERM U1163, Institut Imagine, Université Paris-Cité, Paris, France ,grid.484422.cLaboratory of Excellence GR-Ex, Paris, France
| | - Cédric Broussard
- grid.462098.10000 0004 0643 431X3P5 Proteom’IC facility, Université Paris-Cité, CNRS, INSERM, Institut Cochin, F-75014 Paris, France
| | - Thiago Maciel Trovati
- grid.508487.60000 0004 7885 7602INSERM U1163, Institut Imagine, Université Paris-Cité, Paris, France ,grid.484422.cLaboratory of Excellence GR-Ex, Paris, France
| | - Jean-Benoît Arlet
- grid.508487.60000 0004 7885 7602Service de Médecine Interne, Hôpital européen Georges-Pompidou APHP, Faculté de Médecine Paris Descartes, Université Paris-Cité, Paris, France
| | - Patrick Mayeux
- grid.484422.cLaboratory of Excellence GR-Ex, Paris, France ,grid.7429.80000000121866389Institut Cochin, Département Développement, Reproduction, Cancer, CNRS INSERM UMR, 8104 Paris, France
| | - Olivier Hermine
- INSERM U1163, Institut Imagine, Université Paris-Cité, Paris, France. .,Laboratory of Excellence GR-Ex, Paris, France. .,Department of Hematology, Hôpital Necker Enfants Malades, AP-HP, Faculté de Médecine Paris Descartes, Université Paris-Cité, Paris, France.
| | - Geneviève Courtois
- INSERM U1163, Institut Imagine, Université Paris-Cité, Paris, France. .,Laboratory of Excellence GR-Ex, Paris, France.
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20
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Cappellini MD, Taher AT, Verma A, Shah F, Hermine O. Erythropoiesis in lower-risk myelodysplastic syndromes and beta-thalassemia. Blood Rev 2022; 59:101039. [PMID: 36577601 DOI: 10.1016/j.blre.2022.101039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 12/15/2022] [Accepted: 12/19/2022] [Indexed: 12/24/2022]
Abstract
The hematologic disorders myelodysplastic syndromes and beta-thalassemia are characterized by ineffective erythropoiesis and anemia, often managed with regular blood transfusions. Erythropoiesis, the process by which sufficient numbers of functional erythrocytes are produced from hematopoietic stem cells, is highly regulated, and defects can negatively affect the proliferation, differentiation, and survival of erythroid precursors. Treatments that directly target the underlying mechanisms of ineffective erythropoiesis are limited, and management of anemia with regular blood transfusions imposes a significant burden on patients, caregivers, and health care systems. There is therefore a strong unmet need for treatments that can restore effective erythropoiesis. Novel therapies are beginning to address this need by targeting a variety of mechanisms underlying erythropoiesis. Herein, we provide an overview of the role of ineffective erythropoiesis in myelodysplastic syndromes and beta-thalassemia, discuss unmet needs in targeting ineffective erythropoiesis, and describe current management strategies and emerging treatments for these disorders.
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Affiliation(s)
| | - Ali T Taher
- Department of Internal Medicine, American University of Beirut Medical Center, Halim and Aida Daniel Academic and Clinical Center, Beirut, Lebanon.
| | - Amit Verma
- Albert Einstein College of Medicine, New York, NY, USA.
| | - Farrukh Shah
- Department of Haematology, Whittington Health NHS Trust, London, UK.
| | - Olivier Hermine
- Department of Hematology, Hôpital Necker, Assistance Publique Hôpitaux de Paris, University Paris Cité, Paris, France; INSERM U1163 and CNRS 8254, Imagine Institute, Université Sorbonne Paris Cité, Paris, France.
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21
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Zhang H, Wan GZ, Wang YY, Chen W, Guan JZ. The role of erythrocytes and erythroid progenitor cells in tumors. Open Life Sci 2022; 17:1641-1656. [PMID: 36567722 PMCID: PMC9755711 DOI: 10.1515/biol-2022-0102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 05/09/2022] [Accepted: 05/30/2022] [Indexed: 12/23/2022] Open
Abstract
In the current research context of precision treatment of malignant tumors, the advantages of immunotherapy are unmatched by conventional antitumor therapy, which can prolong progression-free survival and overall survival. The search for new targets and novel combination therapies can improve the efficacy of immunotherapy and reduce adverse effects. Since current research targets for immunotherapy mainly focus on lymphocytes, little research has been done on erythrocytes. Nucleated erythroid precursor stem cells have been discovered to play an essential role in tumor progression. Researchers are exploring new targets and therapeutic approaches for immunotherapy from the perspective of erythroid progenitor cells (EPCs). Recent studies have shown that different subtypes of EPCs have specific surface markers and distinct biological roles in tumor immunity. CD45+ EPCs are potent myeloid-derived suppressor cell-like immunosuppressants that reduce the patient's antitumor immune response. CD45- EPCs promote tumor invasion and metastasis by secreting artemin. A specific type of EPC also promotes angiogenesis and provides radiation protection. Therefore, EPCs may be involved in tumor growth, infiltration, and metastasis. It may also be an important cause of anti-angiogenesis and immunotherapy resistance. This review summarizes recent research advances in erythropoiesis, EPC features, and their impacts and processes on tumors.
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Affiliation(s)
- Hao Zhang
- Department of Oncology, The Fifth Medical Center, Chinese PLA (People’s Liberation Army) General Hospital, Beijing 100091, China,Department of Oncology, The Eighth Medical Center, Chinese PLA (People’s Liberation Army) General Hospital, Beijing 100071, China,Postgraduate Department of Hebei North University, Zhangjiakou 075000, China
| | - Guang-zhi Wan
- Department of Oncology, The Eighth Medical Center, Chinese PLA (People’s Liberation Army) General Hospital, Beijing 100071, China
| | - Yu-ying Wang
- Department of Oncology, First Medical Center, Chinese PLA (People’s Liberation Army) General Hospital, Beijing, China
| | - Wen Chen
- Department of Pathology, The Eighth Medical Center, Chinese PLA (People’s Liberation Army) General Hospital, Beijing 100091, China
| | - Jing-Zhi Guan
- Department of Oncology, The Eighth Medical Center, Chinese PLA (People’s Liberation Army) General Hospital, Beijing 100071, China
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22
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Zhang H, Xue F, Zhao H, Chen L, Wang T, Wu X. DNA methylation status of DNAJA4 is essential for human erythropoiesis. Epigenomics 2022; 14:1249-1267. [DOI: 10.2217/epi-2022-0341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
Aims: To investigate DNA methylation patterns in early and terminal stages of erythropoiesis, and to explore the function of differentially methylated genes in erythropoiesis and erythroid disorders. Materials & methods: Differential analysis of DNA methylation and gene expression during erythropoiesis, as well as weighted gene coexpression network analysis of acute myeloid leukemia was performed. Results: We identified four candidate genes that possessed differential methylation in the promoter regions. DNAJA4 affected proliferation, apoptosis and enucleation during terminal erythropoiesis and was associated with the prognosis of acute myeloid leukemia. DNAJA4 was specifically highly expressed in erythroleukemia and is associated with DNA methylation. Conclusion: DNAJA4 plays a crucial role for erythropoiesis and is regulated via DNA methylation. Dysregulation of DNAJA4 expression is associated with erythroid disorders.
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Affiliation(s)
- Hengchao Zhang
- School of Life Sciences, Zhengzhou University, Science Road 100, Zhengzhou, 450001, China
| | - Fumin Xue
- Department of Gastroenterology, Children’s Hospital affiliated of Zhengzhou University, Zhengzhou, 450000, China
| | - Huizhi Zhao
- 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
| | - Ting Wang
- 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
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23
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Yoshinaga M, Han K, Morgens DW, Horii T, Kobayashi R, Tsuruyama T, Hia F, Yasukura S, Kajiya A, Cai T, Cruz PHC, Vandenbon A, Suzuki Y, Kawahara Y, Hatada I, Bassik MC, Takeuchi O. The N 6-methyladenosine methyltransferase METTL16 enables erythropoiesis through safeguarding genome integrity. Nat Commun 2022; 13:6435. [PMID: 36307435 PMCID: PMC9616860 DOI: 10.1038/s41467-022-34078-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 10/12/2022] [Indexed: 02/07/2023] Open
Abstract
During erythroid differentiation, the maintenance of genome integrity is key for the success of multiple rounds of cell division. However, molecular mechanisms coordinating the expression of DNA repair machinery in erythroid progenitors are poorly understood. Here, we discover that an RNA N6-methyladenosine (m6A) methyltransferase, METTL16, plays an essential role in proper erythropoiesis by safeguarding genome integrity via the control of DNA-repair-related genes. METTL16-deficient erythroblasts exhibit defective differentiation capacity, DNA damage and activation of the apoptotic program. Mechanistically, METTL16 controls m6A deposition at the structured motifs in DNA-repair-related transcripts including Brca2 and Fancm mRNAs, thereby upregulating their expression. Furthermore, a pairwise CRISPRi screen revealed that the MTR4-nuclear RNA exosome complex is involved in the regulation of METTL16 substrate mRNAs in erythroblasts. Collectively, our study uncovers that METTL16 and the MTR4-nuclear RNA exosome act as essential regulatory machinery to maintain genome integrity and erythropoiesis.
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Affiliation(s)
- Masanori Yoshinaga
- grid.258799.80000 0004 0372 2033Department of Medical Chemistry, Graduate School of Medicine, Kyoto University, Kyoto, 606-8501 Japan
| | - Kyuho Han
- grid.168010.e0000000419368956Department of Genetics, Stanford University School of Medicine, Stanford, CA 94305 USA
| | - David W. Morgens
- grid.168010.e0000000419368956Department of Genetics, Stanford University School of Medicine, Stanford, CA 94305 USA
| | - Takuro Horii
- grid.256642.10000 0000 9269 4097Laboratory of Genome Science, Biosignal Genome Resource Center, Institute for Molecular and Cellular Regulation, Gunma University, Gunma, 371-8512 Japan
| | - Ryosuke Kobayashi
- grid.256642.10000 0000 9269 4097Laboratory of Genome Science, Biosignal Genome Resource Center, Institute for Molecular and Cellular Regulation, Gunma University, Gunma, 371-8512 Japan
| | - Tatsuaki Tsuruyama
- grid.258799.80000 0004 0372 2033Department of Drug and Discovery Medicine, Graduate School of Medicine, Kyoto University, Kyoto, 606-8501 Japan
| | - Fabian Hia
- grid.258799.80000 0004 0372 2033Department of Medical Chemistry, Graduate School of Medicine, Kyoto University, Kyoto, 606-8501 Japan
| | - Shota Yasukura
- grid.258799.80000 0004 0372 2033Department of Medical Chemistry, Graduate School of Medicine, Kyoto University, Kyoto, 606-8501 Japan
| | - Asako Kajiya
- grid.258799.80000 0004 0372 2033Department of Medical Chemistry, Graduate School of Medicine, Kyoto University, Kyoto, 606-8501 Japan
| | - Ting Cai
- grid.258799.80000 0004 0372 2033Department of Medical Chemistry, Graduate School of Medicine, Kyoto University, Kyoto, 606-8501 Japan
| | - Pedro H. C. Cruz
- grid.136593.b0000 0004 0373 3971Department of RNA Biology and Neuroscience, Graduate School of Medicine, Osaka University, Osaka, 565-0871 Japan
| | - Alexis Vandenbon
- grid.258799.80000 0004 0372 2033Laboratory of Tissue Homeostasis, Institute for Life and Medical Sciences, Kyoto University, Kyoto, 606-8507 Japan
| | - Yutaka Suzuki
- grid.26999.3d0000 0001 2151 536XLaboratory of Functional Genomics, Department of Medical Genome Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Chiba, 277-8562 Japan
| | - Yukio Kawahara
- grid.136593.b0000 0004 0373 3971Department of RNA Biology and Neuroscience, Graduate School of Medicine, Osaka University, Osaka, 565-0871 Japan
| | - Izuho Hatada
- grid.256642.10000 0000 9269 4097Laboratory of Genome Science, Biosignal Genome Resource Center, Institute for Molecular and Cellular Regulation, Gunma University, Gunma, 371-8512 Japan ,grid.256642.10000 0000 9269 4097Viral Vector Core, Gunma University Initiative for Advanced Research (GIAR), Gunma, 371-8512 Japan
| | - Michael C. Bassik
- grid.168010.e0000000419368956Department of Genetics, Stanford University School of Medicine, Stanford, CA 94305 USA
| | - Osamu Takeuchi
- grid.258799.80000 0004 0372 2033Department of Medical Chemistry, Graduate School of Medicine, Kyoto University, Kyoto, 606-8501 Japan
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24
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In Vitro Study of Ineffective Erythropoiesis in Thalassemia: Diverse Intrinsic Pathophysiological Features of Erythroid Cells Derived from Various Thalassemia Syndromes. J Clin Med 2022; 11:jcm11185356. [PMID: 36143003 PMCID: PMC9504363 DOI: 10.3390/jcm11185356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Revised: 08/30/2022] [Accepted: 09/06/2022] [Indexed: 11/16/2022] Open
Abstract
Defective hemoglobin production and ineffective erythropoiesis contribute to the pathophysiology of thalassemia syndromes. Previous studies in the field of erythropoiesis mainly focused on the severe forms of thalassemia, such as β-thalassemia major, while mechanisms underlying the pathogenesis of other thalassemia syndromes remain largely unexplored. The current study aimed to investigate the intrinsic pathophysiological properties of erythroid cells derived from the most common forms of thalassemia diseases, including α-thalassemia (hemoglobin H and hemoglobin H-Constant Spring diseases) and β-thalassemia (homozygous β0-thalassemia and β0-thalassemia/hemoglobin E diseases), under an identical in vitro erythroid culture system. Cell proliferation capacity, differentiation velocity, cell death, as well as globin synthesis and the expression levels of erythropoiesis modifying factors were determined. Accelerated expansion was found in erythroblast cells derived from all types of thalassemia, with the highest degree in β0-thalassemia/hemoglobin E. Likewise, all types of thalassemia showed limited erythroid cell differentiation, but each of them manifested varying degrees of erythroid maturation arrest corresponding with the clinical severity. Robust induction of HSP70 transcripts, an erythroid maturation-related factor, was found in both α- and β-thalassemia erythroid cells. Increased cell death was distinctly present only in homozygous β0-thalassemia erythroblasts and associated with the up-regulation of pro-apoptotic (Caspase 9, BAD, and MTCH1) genes and down-regulation of the anti-apoptotic BCL-XL gene.
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25
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Liu JF, Chen PC, Ling TY, Hou CH. Hyperthermia increases HSP production in human PDMCs by stimulating ROS formation, p38 MAPK and Akt signaling, and increasing HSF1 activity. Stem Cell Res Ther 2022; 13:236. [PMID: 35659731 PMCID: PMC9166587 DOI: 10.1186/s13287-022-02885-1] [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: 04/19/2021] [Accepted: 02/02/2022] [Indexed: 11/29/2022] Open
Abstract
Background Human placenta-derived multipotent cells (hPDMCs) are isolated from a source uncomplicated by ethical issues and are ideal for therapeutic applications because of their capacity for multilineage differentiation and proven immunosuppressive properties. It is known that heat shock preconditioning induces the upregulation of heat shock proteins (HSPs), which enhance survival and engraftment of embryonic stem cells (ESCs) during transplantation in live animal models, although whether heat shock preconditioning has the same effects in hPDMCs is unclear. Methods The hPDMCs were isolated from placenta of healthy donors. The cells were treated with heat shock (43 °C, 15 min), followed by evaluation of cell viability. Furthermore, the HSPs expression was assessed by Western blot, qPCR. The reactive oxygen species (ROS) production and signal pathway activation were determined by flow cytometry and Western blot, respectively. The regulatory pathways involved in HSPs expression were examined by pretreatment with chemical inhibitors, and siRNAs of MAPK, Akt, and heat shock factor 1 (HSF1), followed by determination of HSPs expression. Results This study demonstrates that heat shock treatment induced ROS generation and HPSs expression in hPDMCs. Heat shock stimulation also increased p38 MAPK and Akt phosphorylation. These effects were reduced by inhibitors of ROS, p38 MAPK and Akt. Moreover, we found that heat shock treatment enhanced nuclear translocation of the HSF1 in hPDMCs, representing activation of HSF1. Pretreatment of hPDMCs with ROS scavengers, SB203580 and Akt inhibitors also reduced the translocation of HSF1 induced by heat shock. Conclusions Our data indicate that heat shock acts via ROS to activate p38 MAPK and Akt signaling, which subsequently activates HSF1, leading to HSP activation and contributing to the protective role of hPDMCs.
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Affiliation(s)
- Ju-Fang Liu
- School of Oral Hygiene, College of Oral Medicine, Taipei Medical University, Taipei, 110, Taiwan.,Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, 404, Taiwan
| | - Po-Chun Chen
- Department of Life Science, National Taiwan Normal University, Taipei, 116, Taiwan.,Translational Medicine Center, Shin-Kong Wu Ho-Su Memorial Hospital, Taipei, 111, Taiwan.,Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, 404, Taiwan
| | - Thai-Yen Ling
- Graduate Institute of Pharmacology, College of Medicine, National Taiwan University, Taipei, 106, Taiwan
| | - Chun-Han Hou
- Department of Orthopedic Surgery, National Taiwan University Hospital, No. 1, Jen-Ai Road, Taipei, 100, Taiwan.
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26
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Clonal Hematopoiesis and the Risk of Hematologic Malignancies after Curative Therapies for Sickle Cell Disease. J Clin Med 2022; 11:jcm11113160. [PMID: 35683547 PMCID: PMC9181510 DOI: 10.3390/jcm11113160] [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: 04/28/2022] [Revised: 05/27/2022] [Accepted: 05/30/2022] [Indexed: 12/30/2022] Open
Abstract
Sickle cell disease (SCD) is associated with severe morbidity and early mortality. Two large population studies found an increased risk for leukemia in individuals with SCD. Notably, while the relative risk of leukemia development is high, the absolute risk is low in individuals with SCD who do not receive cell-based therapies. However, the risk of leukemia in SCD is high after graft rejection and with gene therapy. Clonal hematopoiesis (CH) is a well-recognized premalignant condition in the general population and in patients after high-dose myelotoxic therapies. Recent studies suggest that CH may be more common in SCD than in the general population, outside the cell-based therapy setting. Here, we review risk factors for CH and progression to leukemia in SCD. We surmise why patients with SCD are at an increased risk for CH and why leukemia incidence is unexpectedly high after graft rejection and gene therapy for SCD. Currently, we are unable to reliably assess genetic risk factors for leukemia development after curative therapies for SCD. Given our current knowledge, we recommend counseling patients about leukemia risk and discussing the importance of an individualized benefit/risk assessment that incorporates leukemia risk in patients undergoing curative therapies for SCD.
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27
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Andrieu-Soler C, Soler E. Erythroid Cell Research: 3D Chromatin, Transcription Factors and Beyond. Int J Mol Sci 2022; 23:ijms23116149. [PMID: 35682828 PMCID: PMC9181152 DOI: 10.3390/ijms23116149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 05/19/2022] [Accepted: 05/20/2022] [Indexed: 02/04/2023] Open
Abstract
Studies of the regulatory networks and signals controlling erythropoiesis have brought important insights in several research fields of biology and have been a rich source of discoveries with far-reaching implications beyond erythroid cells biology. The aim of this review is to highlight key recent discoveries and show how studies of erythroid cells bring forward novel concepts and refine current models related to genome and 3D chromatin organization, signaling and disease, with broad interest in life sciences.
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Affiliation(s)
| | - Eric Soler
- IGMM, Université Montpellier, CNRS, 34093 Montpellier, France;
- Laboratory of Excellence GR-Ex, Université de Paris, 75015 Paris, France
- Correspondence:
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28
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Dulmovits BM, Tang Y, Papoin J, He M, Li J, Yang H, Addorisio ME, Kennedy L, Khan M, Brindley E, Ashley RJ, Ackert-Bicknell C, Hale J, Kurita R, Nakamura Y, Diamond B, Barnes BJ, Hermine O, Gallagher PG, Steiner LA, Lipton JM, Taylor N, Mohandas N, Andersson U, Al-Abed Y, Tracey KJ, Blanc L. HMGB1-mediated restriction of EPO signaling contributes to anemia of inflammation. Blood 2022; 139:3181-3193. [PMID: 35040907 PMCID: PMC9136881 DOI: 10.1182/blood.2021012048] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Accepted: 12/22/2021] [Indexed: 11/20/2022] Open
Abstract
Anemia of inflammation, also known as anemia of chronic disease, is refractory to erythropoietin (EPO) treatment, but the mechanisms underlying the EPO refractory state are unclear. Here, we demonstrate that high mobility group box-1 protein (HMGB1), a damage-associated molecular pattern molecule recently implicated in anemia development during sepsis, leads to reduced expansion and increased death of EPO-sensitive erythroid precursors in human models of erythropoiesis. HMGB1 significantly attenuates EPO-mediated phosphorylation of the Janus kinase 2/STAT5 and mTOR signaling pathways. Genetic ablation of receptor for advanced glycation end products, the only known HMGB1 receptor expressed by erythroid precursors, does not rescue the deleterious effects of HMGB1 on EPO signaling, either in human or murine precursors. Furthermore, surface plasmon resonance studies highlight the ability of HMGB1 to interfere with the binding between EPO and the EPOR. Administration of a monoclonal anti-HMGB1 antibody after sepsis onset in mice partially restores EPO signaling in vivo. Thus, HMGB1-mediated restriction of EPO signaling contributes to the chronic phase of anemia of inflammation.
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Affiliation(s)
- Brian M Dulmovits
- Zucker School of Medicine at Hofstra Northwell, Hempstead, NY
- Institute of Molecular Medicine, and
| | | | | | - Mingzhu He
- Institute of Bioelectronic Medicine, Feinstein Institutes for Medical Research, Manhasset, NY
| | - Jianhua Li
- Institute of Bioelectronic Medicine, Feinstein Institutes for Medical Research, Manhasset, NY
| | - Huan Yang
- Institute of Bioelectronic Medicine, Feinstein Institutes for Medical Research, Manhasset, NY
| | - Meghan E Addorisio
- Institute of Bioelectronic Medicine, Feinstein Institutes for Medical Research, Manhasset, NY
| | | | | | - Elena Brindley
- Zucker School of Medicine at Hofstra Northwell, Hempstead, NY
- Institute of Molecular Medicine, and
| | - Ryan J Ashley
- Zucker School of Medicine at Hofstra Northwell, Hempstead, NY
- Institute of Molecular Medicine, and
| | | | - John Hale
- Red Cell Physiology Laboratory, New York Blood Center, New York, NY
| | - Ryo Kurita
- Central Blood Institute, Japanese Red Cross Society, Minato-ku, Tokyo, Japan
| | - Yukio Nakamura
- Cell Engineering Division, RIKEN BioResource Research Center, Tsukuba, Ibaraki, Japan
| | - Betty Diamond
- Zucker School of Medicine at Hofstra Northwell, Hempstead, NY
- Institute of Molecular Medicine, and
| | - Betsy J Barnes
- Zucker School of Medicine at Hofstra Northwell, Hempstead, NY
- Institute of Molecular Medicine, and
| | - Olivier Hermine
- INSERM Unité Mixte de Recherche (UMR) 1163, IMAGINE Institute, Paris, France
| | | | - Laurie A Steiner
- Department of Pediatrics, University of Rochester, Rochester, NY
| | - Jeffrey M Lipton
- Zucker School of Medicine at Hofstra Northwell, Hempstead, NY
- Institute of Molecular Medicine, and
- Pediatric Hematology/Oncology, Cohen Children's Medical Center, New Hyde Park, NY
| | - Naomi Taylor
- Pediatric Oncology Branch, National Cancer Institute, Center for Cancer Research, National Institutes of Health, Bethesda, MD; and
| | - Narla Mohandas
- Red Cell Physiology Laboratory, New York Blood Center, New York, NY
| | - Ulf Andersson
- Department of Women's and Children's Health, Karolinska Institute, Stockholm, Sweden
| | - Yousef Al-Abed
- Zucker School of Medicine at Hofstra Northwell, Hempstead, NY
- Institute of Bioelectronic Medicine, Feinstein Institutes for Medical Research, Manhasset, NY
| | - Kevin J Tracey
- Zucker School of Medicine at Hofstra Northwell, Hempstead, NY
- Institute of Bioelectronic Medicine, Feinstein Institutes for Medical Research, Manhasset, NY
| | - Lionel Blanc
- Zucker School of Medicine at Hofstra Northwell, Hempstead, NY
- Institute of Molecular Medicine, and
- INSERM Unité Mixte de Recherche (UMR) 1163, IMAGINE Institute, Paris, France
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29
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Soboleva S, Miharada K. Induction of enucleation in primary and immortalized erythroid cells. Int J Hematol 2022; 116:192-198. [PMID: 35610497 DOI: 10.1007/s12185-022-03386-w] [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: 05/02/2022] [Revised: 05/02/2022] [Accepted: 05/06/2022] [Indexed: 10/18/2022]
Abstract
Enucleation is a crucial event during the erythropoiesis, implicating drastic morphologic and transcriptomic/proteomic changes. While many genes deletion lead to failed or impaired enucleation have been identified, directly triggering the erythroid maturation, particularly enucleation, is still challenging. Inducing enucleation at the desired timing is necessary to develop efficient methods to generate mature, fully functional red blood cells in vitro for future transfusion therapies. However, there are considerable differences between primary erythroid cells and cultured cell sources, particularly pluripotent stem cell-derived erythroid cells and immortalized erythroid cell lines. For instance, the difference in the proliferative status between those cell types could be a critical factor, as cell cycle exit is closely connected to the terminal maturation of primary. In this review, we will discuss previous findings on the enucleation machinery and current challengings to trigger the enucleation of infinite erythroid cell sources.
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Affiliation(s)
- Svetlana Soboleva
- Division of Molecular Medicine and Gene Therapy, Lund Stem Cell Center, Lund University, Lund, Sweden
| | - Kenichi Miharada
- Division of Molecular Medicine and Gene Therapy, Lund Stem Cell Center, Lund University, Lund, Sweden. .,International Research Center for Medical Sciences, Kumamoto University, Kumamoto, Japan.
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30
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Sanchez-Villalobos M, Blanquer M, Moraleda JM, Salido EJ, Perez-Oliva AB. New Insights Into Pathophysiology of β-Thalassemia. Front Med (Lausanne) 2022; 9:880752. [PMID: 35492364 PMCID: PMC9041707 DOI: 10.3389/fmed.2022.880752] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Accepted: 03/22/2022] [Indexed: 11/16/2022] Open
Abstract
β-thalassemia is a disease caused by genetic mutations including a nucleotide change, small insertions or deletions in the β-globin gene, or in rare cases, gross deletions into the β-globin gene. These mutations affect globin-chain subunits within the hemoglobin tetramer what induces an imbalance in the α/β-globin chain ratio, with an excess of free α-globin chains that triggers the most important pathogenic events of the disease: ineffective erythropoiesis, chronic anemia/chronic hypoxia, compensatory hemopoietic expansion and iron overload. Based on advances in our knowledge of the pathophysiology of β-thalassemia, in recent years, emerging therapies and clinical trials are being conducted and are classified into three major categories based on the different approach features of the underlying pathophysiology: correction of the α/β-globin disregulation; improving iron overload and reverse ineffective erythropoiesis. However, pathways such as the dysregulation of transcriptional factors, activation of the inflammasome, or approach to mechanisms of bone mineral loss, remain unexplored for future therapeutic targets. In this review, we update the main pathophysiological pathways involved in β-thalassemia, focusing on the development of new therapies directed at new therapeutic targets.
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Affiliation(s)
| | - Miguel Blanquer
- Hematology Service, Virgen de la Arrixaca University Hospital, Murcia, Spain.,Biomedical Research Institute of Murcia (IMIB), Murcia, Spain
| | - Jose M Moraleda
- Hematology Service, Virgen de la Arrixaca University Hospital, Murcia, Spain.,Biomedical Research Institute of Murcia (IMIB), Murcia, Spain
| | - Eduardo J Salido
- Hematology Service, Virgen de la Arrixaca University Hospital, Murcia, Spain.,Biomedical Research Institute of Murcia (IMIB), Murcia, Spain
| | - Ana B Perez-Oliva
- Biomedical Research Institute of Murcia (IMIB), Murcia, Spain.,Centro de Investigaci3n Biomédica en Red de Enfermedades Raras (CIBERER), Madrid, Spain
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31
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Caulier AL, Sankaran VG. Molecular and cellular mechanisms that regulate human erythropoiesis. Blood 2022; 139:2450-2459. [PMID: 34936695 PMCID: PMC9029096 DOI: 10.1182/blood.2021011044] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Accepted: 12/15/2021] [Indexed: 12/03/2022] Open
Abstract
To enable effective oxygen transport, ∼200 billion red blood cells (RBCs) need to be produced every day in the bone marrow through the fine-tuned process of erythropoiesis. Erythropoiesis is regulated at multiple levels to ensure that defective RBC maturation or overproduction can be avoided. Here, we provide an overview of different layers of this control, ranging from cytokine signaling mechanisms that enable extrinsic regulation of RBC production to intrinsic transcriptional pathways necessary for effective erythropoiesis. Recent studies have also elucidated the importance of posttranscriptional regulation and highlighted additional gatekeeping mechanisms necessary for effective erythropoiesis. We additionally discuss the insights gained by studying human genetic variation affecting erythropoiesis and highlight the discovery of BCL11A as a regulator of hemoglobin switching through genetic studies. Finally, we provide an outlook of how our ability to measure multiple facets of this process at single-cell resolution, while accounting for the impact of human variation, will continue to refine our knowledge of erythropoiesis and how this process is perturbed in disease. As we learn more about this intricate and important process, additional opportunities to modulate erythropoiesis for therapeutic purposes will undoubtedly emerge.
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Affiliation(s)
- Alexis L Caulier
- Division of Hematology/Oncology, Boston Children's Hospital, Harvard Medical School, Boston, MA
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA; and
- Broad Institute of MIT and Harvard, Cambridge, MA
| | - Vijay G Sankaran
- Division of Hematology/Oncology, Boston Children's Hospital, Harvard Medical School, Boston, MA
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA; and
- Broad Institute of MIT and Harvard, Cambridge, MA
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32
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Effect of Glucocorticosteroids in Diamond-Blackfan Anaemia: Maybe Not as Elusive as It Seems. Int J Mol Sci 2022; 23:ijms23031886. [PMID: 35163808 PMCID: PMC8837118 DOI: 10.3390/ijms23031886] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2021] [Revised: 02/01/2022] [Accepted: 02/05/2022] [Indexed: 12/22/2022] Open
Abstract
Diamond-Blackfan anaemia (DBA) is a red blood cell aplasia that in the majority of cases is associated with ribosomal protein (RP) aberrations. However, the mechanism by which this disorder leads to such a specific phenotype remains unclear. Even more elusive is the reason why non-specific agents such as glucocorticosteroids (GCs), also known as glucocorticoids, are an effective therapy for DBA. In this review, we (1) explore why GCs are successful in DBA treatment, (2) discuss the effect of GCs on erythropoiesis, and (3) summarise the GC impact on crucial pathways deregulated in DBA. Furthermore, we show that GCs do not regulate DBA erythropoiesis via a single mechanism but more likely via several interdependent pathways.
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33
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Hara R, Goto N, Furuya D, Kitahara T, Numata H, Watanabe S, Kawada H, Ando K. The Effect of Roxadustat on Transfusion-Dependent Myelodysplastic Syndrome Complicated by Chronic Kidney Disease. Case Rep Oncol 2021; 14:1574-1579. [PMID: 34949998 PMCID: PMC8647131 DOI: 10.1159/000519568] [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: 08/24/2021] [Accepted: 09/09/2021] [Indexed: 12/17/2022] Open
Abstract
Haematopoietic insufficiency is the treatment target of lower-risk myelodysplastic syndrome (MDS). Although erythropoiesis-stimulating agents (ESAs) are generally effective for treating anaemia, resistance can develop. Hypoxia-inducible factor-prolyl hydroxylase (HIF-PH) improves renal anaemia by promoting endogenous erythropoietin production and normalizing iron metabolism. HIF-PH inhibitors could be used to treat MDS, but their efficacy and safety have not been studied. A 78-year-old female patient with essential thrombocythemia gradually developed anaemia and was diagnosed with therapy-related MDS 4 years later. The anaemia temporarily improved with ESAs, but the patient became transfusion dependent. At the same time, anaemia and chronic renal failure due to nephrosclerosis progressed, and the patient was diagnosed with MDS with renal anaemia. After switching from ESAs to roxadustat, an HIF-PH inhibitor, anaemia improved, and the patient was no longer transfusion dependent. No progression of the underlying disease or any adverse events was observed 4 months after initiating roxadustat.
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Affiliation(s)
- Ryujiro Hara
- Department of Haematology, Ebina General Hospital, Ebina, Japan.,Division of Haematology/Oncology, Department of Internal Medicine, Tokai University School of Medicine, Isehara, Japan
| | - Naoki Goto
- Department of Internal Medicine, Ebina, Japan
| | - Daisuke Furuya
- Division of Haematology/Oncology, Department of Internal Medicine, Tokai University School of Medicine, Isehara, Japan.,Department of Haematology, Hiratsuka Kyosai Hospital, Hiratsuka, Japan
| | | | - Hiroki Numata
- Department of Haematology, Ebina General Hospital, Ebina, Japan.,Division of Haematology/Oncology, Department of Internal Medicine, Tokai University School of Medicine, Isehara, Japan
| | | | - Hiroshi Kawada
- Division of Haematology/Oncology, Department of Internal Medicine, Tokai University School of Medicine, Isehara, Japan
| | - Kiyoshi Ando
- Division of Haematology/Oncology, Department of Internal Medicine, Tokai University School of Medicine, Isehara, Japan
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34
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Ineffective erythropoiesis and its treatment. Blood 2021; 139:2460-2470. [PMID: 34932791 DOI: 10.1182/blood.2021011045] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 11/29/2021] [Accepted: 11/29/2021] [Indexed: 01/19/2023] Open
Abstract
The erythroid marrow and circulating red blood cells (RBCs) are the key components of the human erythron. Abnormalities of the erythron that are responsible for anemia can be distinguished into 3 major categories, that is, erythroid hypoproliferation, ineffective erythropoiesis, and peripheral hemolysis. Ineffective erythropoiesis is characterized by erythropoietin-driven expansion of early-stage erythroid precursors, associated with apoptosis of late-stage precursors. This mechanism is primarily responsible for anemia in inherited disorders like β-thalassemia, inherited sideroblastic anemias, and congenital dyserythropoietic anemias, as well as in acquired conditions like some subtypes of myelodysplastic syndromes (MDS). The inherited anemias due to ineffective erythropoiesis are also defined as iron loading anemias because of the associated parenchymal iron loading caused by the release of erythroid factors that suppress hepcidin production. Novel treatments specifically targeting ineffective erythropoiesis are being developed. Iron restriction through enhancement of hepcidin activity or inhibition of ferroportin function has been shown to reduce ineffective erythropoiesis in murine models of β-thalassemia. Luspatercept is a TGF-β ligand trap that inhibits SMAD2/3 signaling. Based on pre-clinical and clinical studies, this compound is now approved for the treatment of anemia in adult patients with β-thalassemia who require regular RBC transfusions. Luspatercept is also approved for the treatment of transfusion-dependent anemia in patients with MDS with ring sideroblasts, most of whom carry a somatic SF3B1mutation. While long-term efficacy and safety of luspatercept need to be evaluated both in β-thalassemia and MDS, defining the molecular mechanisms of ineffective erythropoiesis in different disorders might allow the discovery of new effective compounds.
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35
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Rodel HE, Ferreira IATM, Ziegler CGK, Ganga Y, Bernstein M, Hwa SH, Nargan K, Lustig G, Kaplan G, Noursadeghi M, Shalek AK, Steyn AJC, Sigal A. Aggregated Mycobacterium tuberculosis Enhances the Inflammatory Response. Front Microbiol 2021; 12:757134. [PMID: 34925266 PMCID: PMC8674758 DOI: 10.3389/fmicb.2021.757134] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Accepted: 10/19/2021] [Indexed: 11/30/2022] Open
Abstract
Mycobacterium tuberculosis (Mtb) bacilli readily aggregate. We previously reported that Mtb aggregates lead to phagocyte death and subsequent efficient replication in the dead infected cells. Here, we examined the transcriptional response of human monocyte derived macrophages to phagocytosis of aggregated Mtb relative to phagocytosis of non-aggregated single or multiple bacilli. Infection with aggregated Mtb led to an early upregulation of pro-inflammatory associated genes and enhanced TNFα signaling via the NFκB pathway. These pathways were significantly more upregulated relative to infection with single or multiple non-aggregated bacilli per cell. Phagocytosis of aggregates led to a decreased phagosome acidification on a per bacillus basis and increased phagocyte cell death, which was not observed when Mtb aggregates were heat killed prior to phagocytosis. Mtb aggregates, observed in a granuloma from a patient, were found surrounding a lesion cavity. These observations suggest that TB aggregation may be a mechanism for pathogenesis. They raise the possibility that aggregated Mtb, if spread from individual to individual, could facilitate increased inflammation, Mtb growth, and macrophage cell death, potentially leading to active disease, cell necrosis, and additional cycles of transmission.
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Affiliation(s)
- Hylton E Rodel
- Africa Health Research Institute, Durban, South Africa.,Division of Infection and Immunity, University College London, London, United Kingdom
| | | | - Carly G K Ziegler
- Ragon Institute of MGH, Harvard, and MIT, Cambridge, MA, United States.,Department of Chemistry, Institute for Medical Engineering and Sciences, MIT, Cambridge, MA, United States.,Broad Institute of MIT and Harvard, Cambridge, MA, United States.,Koch Institute for Integrative Cancer Research, MIT, Cambridge, MA, United States
| | - Yashica Ganga
- Africa Health Research Institute, Durban, South Africa
| | | | - Shi-Hsia Hwa
- Africa Health Research Institute, Durban, South Africa.,Division of Infection and Immunity, University College London, London, United Kingdom
| | | | - Gila Lustig
- Africa Health Research Institute, Durban, South Africa
| | - Gilla Kaplan
- University of Cape Town, Cape Town, South Africa
| | - Mahdad Noursadeghi
- Division of Infection and Immunity, University College London, London, United Kingdom
| | - Alex K Shalek
- Ragon Institute of MGH, Harvard, and MIT, Cambridge, MA, United States.,Department of Chemistry, Institute for Medical Engineering and Sciences, MIT, Cambridge, MA, United States.,Broad Institute of MIT and Harvard, Cambridge, MA, United States.,Koch Institute for Integrative Cancer Research, MIT, Cambridge, MA, United States
| | - Adrie J C Steyn
- Africa Health Research Institute, Durban, South Africa.,School of Laboratory Medicine and Medical Sciences, University of KwaZulu-Natal, Durban, South Africa.,Department of Microbiology, Centres for AIDS Research and Free Radical Biology, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Alex Sigal
- Africa Health Research Institute, Durban, South Africa.,Division of Infection and Immunity, University College London, London, United Kingdom.,School of Laboratory Medicine and Medical Sciences, University of KwaZulu-Natal, Durban, South Africa.,Max Planck Institute for Infection Biology, Berlin, Germany
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36
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Ichii M, Oritani K, Toda J, Hosen N, Matsuda T, Kanakura Y. Signal-transducing adaptor protein-1 and protein-2 in hematopoiesis and diseases. Exp Hematol 2021; 105:10-17. [PMID: 34780812 DOI: 10.1016/j.exphem.2021.11.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 10/28/2021] [Accepted: 11/08/2021] [Indexed: 11/04/2022]
Abstract
Inflammatory and immune signals are involved in stressed hematopoiesis under myeloablation, infection, chronic inflammation, and aging. These signals also affect malignant pathogenesis, and the dysregulated immune environment which causes the resistance to treatment. On activation, various types of protein tyrosine kinases in the cytoplasm mediate the cascade, leading to the transcription of target genes in the nucleus. Adaptor molecules are commonly defined as proteins that lack enzymatic activity, DNA-binding or receptor functions and possess protein-protein or protein-lipid interaction domains. By binding to specific domains of signaling molecules, adaptor proteins adjust the signaling responses after the ligation of receptors of soluble factors, including cytokines, chemokines, and growth factors, as well as pattern recognition receptors such as toll-like receptors. The signal-transducing adaptor protein (STAP) family regulates various intracellular signaling pathways. These proteins have a pleckstrin homology domain in the N-terminal region and an SRC-homology 2-like domain in the central region, representing typical binding structures as adapter proteins. Following the elucidation of the effects of STAPs on terminally differentiated immune cells, such as macrophages, T cells, mast cells, and basophils, recent findings have indicated the critical roles of STAP-2 in B-cell progenitor cells in marrow under hematopoietic stress and STAP-1 and -2 in BCR-ABL-transduced leukemogenesis. In this review, we focus on the role of STAPs in the bone marrow.
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Affiliation(s)
- Michiko Ichii
- Department of Hematology and Oncology, Osaka University Graduate School of Medicine, Suita, Japan.
| | - Kenji Oritani
- Department of Hematology, Graduate School of Medical Science, International University of Health and Welfare, Narita, Japan
| | - Jun Toda
- Department of Hematology and Oncology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Naoki Hosen
- Department of Hematology and Oncology, Osaka University Graduate School of Medicine, Suita, Japan; Laboratory of Cellular Immunotherapy, World Premier International Immunology Frontier Research Center, Osaka University, Suita, Japan; Integrated Frontier Research for Medical Science Division, Institute for Open and Transdisciplinary Research Initiatives (OTRI), Osaka University, Suita, Japan
| | - Tadashi Matsuda
- Department of Immunology, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo, Japan
| | - Yuzuru Kanakura
- Department of Hematology and Oncology, Osaka University Graduate School of Medicine, Suita, Japan; Sumitomo Hospital, Osaka, Japan
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37
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Suriyun T, Kaewsakulthong W, Khamphikham P, Chumchuen S, Hongeng S, Fucharoen S, Sripichai O. Association of the Degree of Erythroid Expansion and Maturation Arrest with the Clinical Severity of β0-Thalassemia/Hemoglobin E Patients. Acta Haematol 2021; 144:660-671. [PMID: 34535581 DOI: 10.1159/000518310] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Accepted: 07/05/2021] [Indexed: 11/19/2022]
Abstract
INTRODUCTION β-Thalassemia/hemoglobin E represents one-half of all the clinically severe β-thalassemias worldwide. Despite similar genetic backgrounds, patients show clinical heterogeneity ranging from nearly asymptomatic to transfusion-dependent thalassemia. The underlying disease modifying factors remain largely obscure. METHODS To elucidate the correlation between ineffective erythropoiesis and β0-thalassemia/hemoglobin E (HbE) disease severity, in vitro culture of erythroid cells derived from patients with different clinical symptoms was established. Cell proliferation, viability, and differentiation were investigated. To identify potential molecular mechanisms leading to the arrested erythroid maturation, the expression levels of erythropoiesis modifying factors were measured. RESULTS The β0-thalassemia/HbE cells exhibited enhanced proliferation, limited differentiation, and impaired erythroid terminal maturation but did not show accelerated erythroblast differentiation and increased cell death. Erythroblasts derived from mild patients showed the highest proliferation rate with a faster cell division time, while erythroblasts derived from severe patients displayed extremely delayed erythroid maturation. Downregulation of growth differentiation factor 11 and FOXO3a was observed in mild β0-thalassemia/HbE erythroblasts, while upregulation of heat shock protein 70 and activin receptor 2A was revealed in severe erythroblasts. DISCUSSION/CONCLUSION The degree of erythroid expansion and maturation arrest contributes to the severity of β0-thalassemia/HbE patients, accounting for the disease heterogeneity. The findings suggest a restoration of erythroid maturation as a promising targeted therapy for severe patients.
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Affiliation(s)
- Thunwarat Suriyun
- Department of Biochemistry, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Woratree Kaewsakulthong
- Department of Biochemistry, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Pinyaphat Khamphikham
- Institute of Molecular Biosciences, Thalassemia Research Center, Institute of Molecular Biosciences, Mahidol University, Nakhonpathom, Thailand
- Department of Medical Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, Thailand
| | - Sukanya Chumchuen
- Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Suradej Hongeng
- Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Suthat Fucharoen
- Institute of Molecular Biosciences, Thalassemia Research Center, Institute of Molecular Biosciences, Mahidol University, Nakhonpathom, Thailand
| | - Orapan Sripichai
- Institute of Molecular Biosciences, Thalassemia Research Center, Institute of Molecular Biosciences, Mahidol University, Nakhonpathom, Thailand
- National Institute of Health, Department of Medical Sciences, Ministry of Public Health, Nonthaburi, Thailand
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Ineffective erythropoiesis in sickle cell disease: new insights and future implications. Curr Opin Hematol 2021; 28:171-176. [PMID: 33631786 DOI: 10.1097/moh.0000000000000642] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
PURPOSE OF REVIEW Sickle cell disease (SCD) is a hemolytic anemia caused by a point mutation in the β globin gene leading to the expression of an abnormal hemoglobin (HbS) that polymerizes under hypoxic conditions driving red cell sickling. Circulating red cells have been extensively characterized in SCD, as their destruction and removal from peripheral blood are the major contributors to anemia. However, few reports showed cellular abnormalities during erythropoiesis in SCD, suggesting that anemia could also be influenced by defects of central origin. RECENT FINDINGS El Hoss et al. demonstrated ineffective erythropoiesis (IE) in SCD and deciphered the molecular mechanism underlying cell death during the hemoglobin synthesis phase of terminal differentiation. They showed that HbS polymerization induces apoptosis of differentiating erythroblasts and that fetal hemoglobin rescues these cells through its antipolymerization function. SUMMARY IE is the major cause of anemia in β-thalassemia patients, and it is generally surmised that it contributes little to anemia of SCD. Recent reports demonstrate the occurrence of IE in SCD patients and show important alterations in the hematopoietic and erythroid niches, both in SCD patients and in the humanized Townes SCD mouse model. This implies that therapeutic strategies initially designed to improve red cell survival in the circulation of SCD patients would also positively impact erythropoiesis and bone marrow cellularity.
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Jeffery NN, Davidson C, Peslak SA, Kingsley PD, Nakamura Y, Palis J, Bulger M. Histone H2A.X phosphorylation and Caspase-Initiated Chromatin Condensation in late-stage erythropoiesis. Epigenetics Chromatin 2021; 14:37. [PMID: 34330317 PMCID: PMC8325214 DOI: 10.1186/s13072-021-00408-5] [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: 04/29/2021] [Accepted: 07/02/2021] [Indexed: 12/14/2022] Open
Abstract
Background Condensation of chromatin prior to enucleation is an essential component of terminal erythroid maturation, and defects in this process are associated with inefficient erythropoiesis and anemia. However, the mechanisms involved in this phenomenon are not well understood. Here, we describe a potential role for the histone variant H2A.X in erythropoiesis. Results We find in multiple model systems that this histone is essential for normal maturation, and that the loss of H2A.X in erythroid cells results in dysregulation in expression of erythroid-specific genes as well as a nuclear condensation defect. In addition, we demonstrate that erythroid maturation is characterized by phosphorylation at both S139 and Y142 on the C-terminal tail of H2A.X during late-stage erythropoiesis. Knockout of the kinase BAZ1B/WSTF results in loss of Y142 phosphorylation and a defect in nuclear condensation, but does not replicate extensive transcriptional changes to erythroid-specific genes observed in the absence of H2A.X. Conclusions We relate these findings to Caspase-Initiated Chromatin Condensation (CICC) in terminal erythroid maturation, where aspects of the apoptotic pathway are invoked while apoptosis is specifically suppressed. Supplementary Information The online version contains supplementary material available at 10.1186/s13072-021-00408-5.
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Affiliation(s)
- Nazish N Jeffery
- Center for Pediatric Biomedical Research, Department of Pediatrics, University of Rochester, Rochester, NY, USA
| | - Christina Davidson
- Wilmot Cancer Institute, Department of Biomedical Genetics, University of Rochester, Rochester, NY, USA
| | - Scott A Peslak
- Department of Medicine, Division of Hematology/Oncology, Hospital of the University of Pennsylvania, Philadelphia, PA, USA.,Division of Hematology, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Paul D Kingsley
- Center for Pediatric Biomedical Research, Department of Pediatrics, University of Rochester, Rochester, NY, USA
| | - Yukio Nakamura
- Cell Engineering Division, RIKEN BioResource Center, Tsukuba, Ibaraki, Japan
| | - James Palis
- Center for Pediatric Biomedical Research, Department of Pediatrics, University of Rochester, Rochester, NY, USA
| | - Michael Bulger
- Center for Pediatric Biomedical Research, Department of Pediatrics, University of Rochester, Rochester, NY, USA.
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Nguyen TTM, Gillet G, Popgeorgiev N. Caspases in the Developing Central Nervous System: Apoptosis and Beyond. Front Cell Dev Biol 2021; 9:702404. [PMID: 34336853 PMCID: PMC8322698 DOI: 10.3389/fcell.2021.702404] [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: 04/29/2021] [Accepted: 06/23/2021] [Indexed: 12/12/2022] Open
Abstract
The caspase family of cysteine proteases represents the executioners of programmed cell death (PCD) type I or apoptosis. For years, caspases have been known for their critical roles in shaping embryonic structures, including the development of the central nervous system (CNS). Interestingly, recent findings have suggested that aside from their roles in eliminating unnecessary neural cells, caspases are also implicated in other neurodevelopmental processes such as axon guidance, synapse formation, axon pruning, and synaptic functions. These results raise the question as to how neurons regulate this decision-making, leading either to cell death or to proper development and differentiation. This review highlights current knowledge on apoptotic and non-apoptotic functions of caspases in the developing CNS. We also discuss the molecular factors involved in the regulation of caspase-mediated roles, emphasizing the mitochondrial pathway of cell death.
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Affiliation(s)
- Trang Thi Minh Nguyen
- Centre de Recherche en Cancérologie de Lyon, U1052 INSERM, UMR CNRS 5286, Centre Léon Bérard, Université Claude Bernard Lyon 1, Lyon, France
| | - Germain Gillet
- Centre de Recherche en Cancérologie de Lyon, U1052 INSERM, UMR CNRS 5286, Centre Léon Bérard, Université Claude Bernard Lyon 1, Lyon, France.,Hospices Civils de Lyon, Laboratoire d'Anatomie et Cytologie Pathologiques, Centre Hospitalier Lyon Sud, Pierre Bénite, France
| | - Nikolay Popgeorgiev
- Centre de Recherche en Cancérologie de Lyon, U1052 INSERM, UMR CNRS 5286, Centre Léon Bérard, Université Claude Bernard Lyon 1, Lyon, France
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Ineffective Erythropoiesis in β-Thalassaemia: Key Steps and Therapeutic Options by Drugs. Int J Mol Sci 2021; 22:ijms22137229. [PMID: 34281283 PMCID: PMC8268821 DOI: 10.3390/ijms22137229] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 06/29/2021] [Accepted: 06/30/2021] [Indexed: 01/19/2023] Open
Abstract
β-thalassaemia is a rare genetic condition caused by mutations in the β-globin gene that result in severe iron-loading anaemia, maintained by a detrimental state of ineffective erythropoiesis (IE). The role of multiple mechanisms involved in the pathophysiology of the disease has been recently unravelled. The unbalanced production of α-globin is a major source of oxidative stress and membrane damage in red blood cells (RBC). In addition, IE is tightly linked to iron metabolism dysregulation, and the relevance of new players of this pathway, i.e., hepcidin, erythroferrone, matriptase-2, among others, has emerged. Advances have been made in understanding the balance between proliferation and maturation of erythroid precursors and the role of specific factors in this process, such as members of the TGF-β superfamily, and their downstream effectors, or the transcription factor GATA1. The increasing understanding of IE allowed for the development of a broad set of potential therapeutic options beyond the current standard of care. Many candidates of disease-modifying drugs are currently under clinical investigation, targeting the regulation of iron metabolism, the production of foetal haemoglobin, the maturation process, or the energetic balance and membrane stability of RBC. Overall, they provide tools and evidence for multiple and synergistic approaches that are effectively moving clinical research in β-thalassaemia from bench to bedside.
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Mathangasinghe Y, Fauvet B, Jane SM, Goloubinoff P, Nillegoda NB. The Hsp70 chaperone system: distinct roles in erythrocyte formation and maintenance. Haematologica 2021; 106:1519-1534. [PMID: 33832207 PMCID: PMC8168490 DOI: 10.3324/haematol.2019.233056] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Indexed: 01/14/2023] Open
Abstract
Erythropoiesis is a tightly regulated cell differentiation process in which specialized oxygen- and carbon dioxide-carrying red blood cells are generated in vertebrates. Extensive reorganization and depletion of the erythroblast proteome leading to the deterioration of general cellular protein quality control pathways and rapid hemoglobin biogenesis rates could generate misfolded/aggregated proteins and trigger proteotoxic stresses during erythropoiesis. Such cytotoxic conditions could prevent proper cell differentiation resulting in premature apoptosis of erythroblasts (ineffective erythropoiesis). The heat shock protein 70 (Hsp70) molecular chaperone system supports a plethora of functions that help maintain cellular protein homeostasis (proteostasis) and promote red blood cell differentiation and survival. Recent findings show that abnormalities in the expression, localization and function of the members of this chaperone system are linked to ineffective erythropoiesis in multiple hematological diseases in humans. In this review, we present latest advances in our understanding of the distinct functions of this chaperone system in differentiating erythroblasts and terminally differentiated mature erythrocytes. We present new insights into the protein repair-only function(s) of the Hsp70 system, perhaps to minimize protein degradation in mature erythrocytes to warrant their optimal function and survival in the vasculature under healthy conditions. The work also discusses the modulatory roles of this chaperone system in a wide range of hematological diseases and the therapeutic gain of targeting Hsp70.
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Affiliation(s)
| | - Bruno Fauvet
- Department of Plant Molecular Biology, Lausanne University, Lausanne
| | - Stephen M Jane
- Central Clinical School, Monash University, Prahran, Victoria, Australia; Department of Hematology, Alfred Hospital, Monash University, Prahran, Victoria
| | | | - Nadinath B Nillegoda
- Australian Regenerative Medicine Institute, Monash University, Clayton, Victoria.
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LSD1 defines erythroleukemia metabolism by controlling the lineage-specific transcription factors GATA1 and C/EBPα. Blood Adv 2021; 5:2305-2318. [PMID: 33929501 DOI: 10.1182/bloodadvances.2020003521] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Accepted: 03/17/2021] [Indexed: 12/18/2022] Open
Abstract
Acute myeloid leukemia (AML) is a heterogenous malignancy characterized by distinct lineage subtypes and various genetic/epigenetic alterations. As with other neoplasms, AML cells have well-known aerobic glycolysis, but metabolic variations depending on cellular lineages also exist. Lysine-specific demethylase-1 (LSD1) has been reported to be crucial for human leukemogenesis, which is currently one of the emerging therapeutic targets. However, metabolic roles of LSD1 and lineage-dependent factors remain to be elucidated in AML cells. Here, we show that LSD1 directs a hematopoietic lineage-specific metabolic program in AML subtypes. Erythroid leukemia (EL) cells particularly showed activated glycolysis and high expression of LSD1 in both AML cell lines and clinical samples. Transcriptome, chromatin immunoprecipitation-sequencing, and metabolomic analyses revealed that LSD1 was essential not only for glycolysis but also for heme synthesis, the most characteristic metabolic pathway of erythroid origin. Notably, LSD1 stabilized the erythroid transcription factor GATA1, which directly enhanced the expression of glycolysis and heme synthesis genes. In contrast, LSD1 epigenetically downregulated the granulo-monocytic transcription factor C/EBPα. Thus, the use of LSD1 knockdown or chemical inhibitor dominated C/EBPα instead of GATA1 in EL cells, resulting in metabolic shifts and growth arrest. Furthermore, GATA1 suppressed the gene encoding C/EBPα that then acted as a repressor of GATA1 target genes. Collectively, we conclude that LSD1 shapes metabolic phenotypes in EL cells by balancing these lineage-specific transcription factors and that LSD1 inhibitors pharmacologically cause lineage-dependent metabolic remodeling.
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Arama E, Baena-Lopez LA, Fearnhead HO. Non-lethal message from the Holy Land: The first international conference on nonapoptotic roles of apoptotic proteins. FEBS J 2021; 288:2166-2183. [PMID: 32885609 DOI: 10.1111/febs.15547] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Accepted: 08/20/2020] [Indexed: 12/01/2022]
Abstract
Apoptosis is a major form of programmed cell death (PCD) that eliminates unnecessary and potentially dangerous cells in all metazoan organisms, thus ensuring tissue homeostasis and many developmental processes. Accordingly, defects in the activation of the apoptotic pathway often pave the way to disease. After several decades of intensive research, the molecular details controlling the apoptosis program have largely been unraveled, as well as the regulatory mechanisms of caspase activation during apoptosis. Nevertheless, an ever-growing list of studies is suggesting the essential role of caspases and other apoptotic proteins in ensuring nonlethal cellular functions during normal development, tissue repair, and regeneration. Moreover, if deregulated, these novel nonapoptotic functions can also instigate diseases. The difficulty of identifying and manipulating the caspase-dependent nonlethal cellular processes (CDPs), as well as the nonlethal functions of other cell death proteins (NLF-CDPs), meant that CDPs and NLF-CDPs have been only curiosities within the apoptotic field; however, the recent technical advancements and the latest biological findings are assigning an unanticipated biological significance to these nonapoptotic functions. Here, we summarize the various talks presented in the first international conference fully dedicated to discuss CDPs and NFL-CDPs and named 'The Batsheva de Rothschild Seminar on Non-Apoptotic Roles of Apoptotic Proteins'. The conference was organized between September 22, 2019, and 25, 2019, by Eli Arama (Weizmann Institute of Science), Luis Alberto Baena-Lopez (University of Oxford), and Howard O. Fearnhead (NUI Galway) at the Weizmann Institute of Science in Israel, and hosted a large international group of researchers.
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Affiliation(s)
- Eli Arama
- Department of Molecular Genetics, Weizmann Institute of Science, Rehovot, Israel
| | | | - Howard O Fearnhead
- Pharmacology and Therapeutics, Biomedical Sciences, Dangan, NUI Galway, Ireland
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45
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Grzywa TM, Justyniarska M, Nowis D, Golab J. Tumor Immune Evasion Induced by Dysregulation of Erythroid Progenitor Cells Development. Cancers (Basel) 2021; 13:870. [PMID: 33669537 PMCID: PMC7922079 DOI: 10.3390/cancers13040870] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 02/13/2021] [Accepted: 02/15/2021] [Indexed: 02/06/2023] Open
Abstract
Cancer cells harness normal cells to facilitate tumor growth and metastasis. Within this complex network of interactions, the establishment and maintenance of immune evasion mechanisms are crucial for cancer progression. The escape from the immune surveillance results from multiple independent mechanisms. Recent studies revealed that besides well-described myeloid-derived suppressor cells (MDSCs), tumor-associated macrophages (TAMs) or regulatory T-cells (Tregs), erythroid progenitor cells (EPCs) play an important role in the regulation of immune response and tumor progression. EPCs are immature erythroid cells that differentiate into oxygen-transporting red blood cells. They expand in the extramedullary sites, including the spleen, as well as infiltrate tumors. EPCs in cancer produce reactive oxygen species (ROS), transforming growth factor β (TGF-β), interleukin-10 (IL-10) and express programmed death-ligand 1 (PD-L1) and potently suppress T-cells. Thus, EPCs regulate antitumor, antiviral, and antimicrobial immunity, leading to immune suppression. Moreover, EPCs promote tumor growth by the secretion of growth factors, including artemin. The expansion of EPCs in cancer is an effect of the dysregulation of erythropoiesis, leading to the differentiation arrest and enrichment of early-stage EPCs. Therefore, anemia treatment, targeting ineffective erythropoiesis, and the promotion of EPC differentiation are promising strategies to reduce cancer-induced immunosuppression and the tumor-promoting effects of EPCs.
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Affiliation(s)
- Tomasz M. Grzywa
- Department of Immunology, Medical University of Warsaw, 02-097 Warsaw, Poland; (T.M.G.); (M.J.)
- Doctoral School, Medical University of Warsaw, 02-091 Warsaw, Poland
- Laboratory of Experimental Medicine, Medical University of Warsaw, 02-097 Warsaw, Poland
| | - Magdalena Justyniarska
- Department of Immunology, Medical University of Warsaw, 02-097 Warsaw, Poland; (T.M.G.); (M.J.)
| | - Dominika Nowis
- Laboratory of Experimental Medicine, Medical University of Warsaw, 02-097 Warsaw, Poland
| | - Jakub Golab
- Department of Immunology, Medical University of Warsaw, 02-097 Warsaw, Poland; (T.M.G.); (M.J.)
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Rodríguez-Ruiz L, Lozano-Gil JM, Lachaud C, Mesa-Del-Castillo P, Cayuela ML, García-Moreno D, Pérez-Oliva AB, Mulero V. Zebrafish Models to Study Inflammasome-Mediated Regulation of Hematopoiesis. Trends Immunol 2020; 41:1116-1127. [PMID: 33162327 DOI: 10.1016/j.it.2020.10.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 10/08/2020] [Accepted: 10/09/2020] [Indexed: 12/17/2022]
Abstract
Hematopoiesis is a complex process through which immature bone marrow precursor cells mature into all types of blood cells. Although the association of hematopoietic lineage bias (including anemia and neutrophilia) with chronic inflammatory diseases has long been appreciated, the causes involved are obscure. Recently, cytosolic multiprotein inflammasome complexes were shown to activate inflammatory and immune responses, and directly regulate hematopoiesis in zebrafish models; this was deemed to occur via cleavage and inactivation of the master erythroid transcription factor GATA1. Herein summarized are the zebrafish models that are currently available to study this unappreciated role of inflammasome-mediated regulation of hematopoiesis. Novel putative therapeutic strategies, for the treatment of hematopoietic alterations associated with chronic inflammatory diseases in humans, are also proposed.
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Affiliation(s)
- Lola Rodríguez-Ruiz
- Departamento de Biología Celular e Histología, Facultad de Biología, Universidad de Murcia, IMIB-Arrixaca, Centro de Investigación Biomédica en Red de Enfermedades Raras, 30100 Murcia, Spain
| | - Juan M Lozano-Gil
- Departamento de Biología Celular e Histología, Facultad de Biología, Universidad de Murcia, IMIB-Arrixaca, Centro de Investigación Biomédica en Red de Enfermedades Raras, 30100 Murcia, Spain
| | - Christophe Lachaud
- Aix-Marseille Univ, INSERM, CNRS, Institut Paoli-Calmettes, CRCM, Marseille, France
| | - Pablo Mesa-Del-Castillo
- Hospital Clínico Universitario Virgen de la Arrixaca, IMIB-Arrixaca, Centro de Investigación Biomédica en Red de Enfermedades Raras, 30120 Murcia, Spain
| | - María L Cayuela
- Hospital Clínico Universitario Virgen de la Arrixaca, IMIB-Arrixaca, Centro de Investigación Biomédica en Red de Enfermedades Raras, 30120 Murcia, Spain
| | - Diana García-Moreno
- Departamento de Biología Celular e Histología, Facultad de Biología, Universidad de Murcia, IMIB-Arrixaca, Centro de Investigación Biomédica en Red de Enfermedades Raras, 30100 Murcia, Spain.
| | - Ana B Pérez-Oliva
- Departamento de Biología Celular e Histología, Facultad de Biología, Universidad de Murcia, IMIB-Arrixaca, Centro de Investigación Biomédica en Red de Enfermedades Raras, 30100 Murcia, Spain.
| | - Victoriano Mulero
- Departamento de Biología Celular e Histología, Facultad de Biología, Universidad de Murcia, IMIB-Arrixaca, Centro de Investigación Biomédica en Red de Enfermedades Raras, 30100 Murcia, Spain.
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Are Heat Shock Proteins an Important Link between Type 2 Diabetes and Alzheimer Disease? Int J Mol Sci 2020; 21:ijms21218204. [PMID: 33147803 PMCID: PMC7662599 DOI: 10.3390/ijms21218204] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 10/26/2020] [Accepted: 10/27/2020] [Indexed: 12/17/2022] Open
Abstract
Type 2 diabetes (T2D) and Alzheimer’s disease (AD) are growing in prevalence worldwide. The development of T2D increases the risk of AD disease, while AD patients can show glucose imbalance due to an increased insulin resistance. T2D and AD share similar pathological features and underlying mechanisms, including the deposition of amyloidogenic peptides in pancreatic islets (i.e., islet amyloid polypeptide; IAPP) and brain (β-Amyloid; Aβ). Both IAPP and Aβ can undergo misfolding and aggregation and accumulate in the extracellular space of their respective tissues of origin. As a main response to protein misfolding, there is evidence of the role of heat shock proteins (HSPs) in moderating T2D and AD. HSPs play a pivotal role in cell homeostasis by providing cytoprotection during acute and chronic metabolic stresses. In T2D and AD, intracellular HSP (iHSP) levels are reduced, potentially due to the ability of the cell to export HSPs to the extracellular space (eHSP). The increase in eHSPs can contribute to oxidative damage and is associated with various pro-inflammatory pathways in T2D and AD. Here, we review the role of HSP in moderating T2D and AD, as well as propose that these chaperone proteins are an important link in the relationship between T2D and AD.
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Hypoxia Pathway Proteins are Master Regulators of Erythropoiesis. Int J Mol Sci 2020; 21:ijms21218131. [PMID: 33143240 PMCID: PMC7662373 DOI: 10.3390/ijms21218131] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2020] [Revised: 10/21/2020] [Accepted: 10/28/2020] [Indexed: 02/06/2023] Open
Abstract
Erythropoiesis is a complex process driving the production of red blood cells. During homeostasis, adult erythropoiesis takes place in the bone marrow and is tightly controlled by erythropoietin (EPO), a central hormone mainly produced in renal EPO-producing cells. The expression of EPO is strictly regulated by local changes in oxygen partial pressure (pO2) as under-deprived oxygen (hypoxia); the transcription factor hypoxia-inducible factor-2 induces EPO. However, erythropoiesis regulation extends beyond the well-established hypoxia-inducible factor (HIF)-EPO axis and involves processes modulated by other hypoxia pathway proteins (HPPs), including proteins involved in iron metabolism. The importance of a number of these factors is evident as their altered expression has been associated with various anemia-related disorders, including chronic kidney disease. Eventually, our emerging understanding of HPPs and their regulatory feedback will be instrumental in developing specific therapies for anemic patients and beyond.
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Wu J, Chen S, Liu Y, Liu Z, Wang D, Cheng Y. Therapeutic perspectives of heat shock proteins and their protein-protein interactions in myocardial infarction. Pharmacol Res 2020; 160:105162. [DOI: 10.1016/j.phrs.2020.105162] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 08/03/2020] [Accepted: 08/17/2020] [Indexed: 12/26/2022]
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Heat Shock Proteins and PD-1/PD-L1 as Potential Therapeutic Targets in Myeloproliferative Neoplasms. Cancers (Basel) 2020; 12:cancers12092592. [PMID: 32932806 PMCID: PMC7563255 DOI: 10.3390/cancers12092592] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Revised: 08/27/2020] [Accepted: 09/04/2020] [Indexed: 12/15/2022] Open
Abstract
Simple Summary Myeloproliferative neoplasms (MPN), which are a heterogeneous group of rare disorders that affect blood cell production in bone marrow, present many significant challenges for clinicians. Though considerable progress has been made, in particular with the JAK1/2 inhibitor ruxolitinib, more effective alternative therapeutic approaches are needed. In the search for new and more efficient therapies, heat shock proteins, also known as stress proteins, and the programmed cell death 1 (PD-1)/programmed death ligand 1 (PD-L1) immune checkpoint axis have been found to be of great interest in hematologic malignancies. Here, we review the therapeutic potential of stress protein inhibitors in the management of patients diagnosed with MPN and summarize the accumulating evidence of the role of the PD-1/PD-L1 axis in MPN in order to provide perspectives on future therapeutic opportunities relative to the inhibition of these targets. Abstract Myeloproliferative neoplasms (MPN) are a group of clonal disorders that affect hematopoietic stem/progenitor cells. These disorders are often caused by oncogenic driver mutations associated with persistent Janus kinase (JAK)/signal transducer and activator of transcription (STAT) signaling. While JAK inhibitors, such as ruxolitinib, reduce MPN-related symptoms in myelofibrosis, they do not influence the underlying cause of the disease and are not curative. Due to these limitations, there is a need for alternative therapeutic strategies and targets. Heat shock proteins (HSPs) are cytoprotective stress-response chaperones involved in protein homeostasis and in many critical pathways, including inflammation. Over the last decade, several research teams have unraveled the mechanistic connection between STAT signaling and several HSPs, showing that HSPs are potential therapeutic targets for MPN. These HSPs include HSP70, HSP90 (chaperoning JAK2) and both HSP110 and HSP27, which are key factors modulating STAT3 phosphorylation status. Like the HSPs, the PD-1/PD-L1 signaling pathway has been widely studied in cancer, but the importance of PD-L1-mediated immune escape in MPN was only recently reported. In this review, we summarize the role of HSPs and PD-1/PD-L1 signaling, the modalities of their experimental blockade, and the effect in MPN. Finally, we discuss the potential of these emerging targeted approaches in MPN therapy.
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