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Ketharnathan S, Pokharel S, Prykhozhij SV, Cordeiro-Santanach A, Ban K, Dogan S, Hoang HD, Liebman MF, Leung E, Alain T, Alecu I, Bennett SAL, Čuperlović-Culf M, Dror Y, Berman JN. Loss of Dnajc21 leads to cytopenia and altered nucleotide metabolism in zebrafish. Leukemia 2024:10.1038/s41375-024-02367-8. [PMID: 39138265 DOI: 10.1038/s41375-024-02367-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 07/24/2024] [Accepted: 07/26/2024] [Indexed: 08/15/2024]
Abstract
Mutations in the DNAJC21 gene were recently described in Shwachman-Diamond syndrome (SDS), a bone marrow failure syndrome with high predisposition for myeloid malignancies. To study the underlying biology in hematopoiesis regulation and disease, we generated the first in vivo model of Dnajc21 deficiency using the zebrafish. Zebrafish dnajc21 mutants phenocopy key SDS patient phenotypes such as cytopenia, reduced growth, and defective protein synthesis. We show that cytopenia results from impaired hematopoietic differentiation, accumulation of DNA damage, and reduced cell proliferation. The introduction of a biallelic tp53 mutation in the dnajc21 mutants leads to the development of myelodysplastic neoplasia-like features defined by abnormal erythroid morphology and expansion of hematopoietic progenitors. Using transcriptomic and metabolomic analyses, we uncover a novel role for Dnajc21 in nucleotide metabolism. Exogenous nucleoside supplementation restores neutrophil counts, revealing an association between nucleotide imbalance and neutrophil differentiation, suggesting a novel mechanism in dnajc21-mutant SDS biology.
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Affiliation(s)
| | | | | | | | - Kevin Ban
- CHEO Research Institute, Ottawa, ON, Canada
| | | | - Huy-Dung Hoang
- CHEO Research Institute, Ottawa, ON, Canada
- Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON, Canada
| | - Mira F Liebman
- Department of Pediatrics, University of Ottawa, Ottawa, ON, Canada
- Department of Pathology and Laboratory Medicine, University of Ottawa, Ottawa, ON, Canada
| | - Elaine Leung
- Department of Pathology and Laboratory Medicine, University of Ottawa, Ottawa, ON, Canada
| | - Tommy Alain
- CHEO Research Institute, Ottawa, ON, Canada
- Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON, Canada
| | - Irina Alecu
- Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON, Canada
| | - Steffany A L Bennett
- Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON, Canada
| | - Miroslava Čuperlović-Culf
- Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON, Canada
- Digital Technologies Research Centre, National Research Council of Canada, Ottawa, ON, Canada
| | - Yigal Dror
- Institute of Medical Science, University of Toronto, Toronto, ON, Canada
- Marrow Failure and Myelodysplasia Program, Division of Hematology/Oncology, Department of Pediatrics, Hospital for Sick Children, Toronto, ON, Canada
| | - Jason N Berman
- CHEO Research Institute, Ottawa, ON, Canada.
- Department of Pediatrics, University of Ottawa, Ottawa, ON, Canada.
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Papadimitriou-Tsantarliotou A, Avgeros C, Konstantinidou M, Vizirianakis IS. Analyzing the role of ferroptosis in ribosome-related bone marrow failure disorders: From pathophysiology to potential pharmacological exploitation. IUBMB Life 2024. [PMID: 39052023 DOI: 10.1002/iub.2897] [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: 04/16/2024] [Accepted: 06/04/2024] [Indexed: 07/27/2024]
Abstract
Within the last decade, the scientific community has witnessed the importance of ferroptosis as a novel cascade of molecular events leading to cellular decisions of death distinct from apoptosis and other known forms of cell death. Notably, such non- apoptotic and iron-dependent regulated cell death has been found to be intricately linked to several physiological processes as well as to the pathogenesis of various diseases. To this end, recent data support the notion that a potential molecular connection between ferroptosis and inherited bone marrow failure (IBMF) in individuals with ribosomopathies may exist. In this review, we suggest that in ribosome-related IBMFs the identified mutations in ribosomal proteins lead to changes in the ribosome composition of the hematopoietic progenitors, changes that seem to affect ribosomal function, thus enhancing the expression of some mRNAs subgroups while reducing the expression of others. These events lead to an imbalance inside the cell as some molecular pathways are promoted while others are inhibited. This disturbance is accompanied by ROS production and lipid peroxidation, while an additional finding in most of them is iron accumulation. Once lipid peroxidation and iron accumulation are the two main characteristics of ferroptosis, it is possible that this mechanism plays a key role in the manifestation of IBMF in this type of disease. If this molecular mechanism is further confirmed, new pharmacological targets such as ferroptosis inhibitors that are already exploited for the treatment of other diseases, could be utilized to improve the treatment of ribosomopathies.
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Affiliation(s)
| | - Chrysostomos Avgeros
- Laboratory of Pharmacology, School of Pharmacy, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Maria Konstantinidou
- Laboratory of Pharmacology, School of Pharmacy, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Ioannis S Vizirianakis
- Laboratory of Pharmacology, School of Pharmacy, Aristotle University of Thessaloniki, Thessaloniki, Greece
- Department of Health Sciences, School of Life and Health Sciences, University of Nicosia, Nicosia, Cyprus
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3
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Lagos-Monzon A, Ng S, Luca AM, Li H, Sabanayagam M, Benicio M, Moshiri H, Armstrong R, Tailor C, Kennedy M, Grunebaum E, Keller G, Dror Y. Aberrant early hematopoietic progenitor formation marks the onset of hematopoietic defects in Shwachman-Diamond syndrome. Eur J Haematol 2024. [PMID: 38967591 DOI: 10.1111/ejh.14260] [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: 02/11/2024] [Revised: 06/03/2024] [Accepted: 06/10/2024] [Indexed: 07/06/2024]
Abstract
Shwachman-Diamond syndrome (SDS) is an inherited bone marrow failure disorder that often presents at infancy. Progress has been made in revealing causal mutated genes (SBDS and others), ribosome defects, and hematopoietic aberrations in SDS. However, the mechanism underlying the hematopoietic failure remained unknown, and treatment options are limited. Herein, we investigated the onset of SDS embryonic hematopoietic impairments. We generated SDS and control human-derived induced pluripotent stem cells (iPSCs). SDS iPSCs recapitulated the SDS hematological phenotype. Detailed stepwise evaluation of definitive hematopoiesis revealed defects that started at the early emerging hematopoietic progenitor (EHP) stage after mesoderm and hemogenic endothelium were normally induced. Hematopoietic potential of EHPs was markedly reduced, and the introduction of SBDS in SDS iPSCs improved colony formation. Transcriptome analysis revealed reduced expression of ribosome and oxidative phosphorylation-related genes in undifferentiated and differentiated iPSCs. However, certain pathways (e.g., DNA replication) and genes (e.g., CHCHD2) were exclusively or more severely dysregulated in EHPs compared with earlier and later stages. To our knowledge, this study offers for the first time an insight into the embryonic onset of human hematopoietic defects in an inherited bone marrow failure syndrome and reveals cellular and molecular aberrations at critical stages of hematopoietic development toward EHPs.
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Affiliation(s)
- Alejandra Lagos-Monzon
- Genetics and Genome Biology, Research Institute, The Hospital for Sick Children, Toronto, Ontario, Canada
- Institute of Medical Science, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Stephanie Ng
- Genetics and Genome Biology, Research Institute, The Hospital for Sick Children, Toronto, Ontario, Canada
- Institute of Medical Science, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Alice M Luca
- Genetics and Genome Biology, Research Institute, The Hospital for Sick Children, Toronto, Ontario, Canada
- Institute of Medical Science, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Hongbing Li
- Genetics and Genome Biology, Research Institute, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Mathura Sabanayagam
- Genetics and Genome Biology, Research Institute, The Hospital for Sick Children, Toronto, Ontario, Canada
- Institute of Medical Science, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Mariana Benicio
- Genetics and Genome Biology, Research Institute, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Houtan Moshiri
- Genetics and Genome Biology, Research Institute, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Richard Armstrong
- Genetics and Genome Biology, Research Institute, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Chetan Tailor
- Genetics and Genome Biology, Research Institute, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Marion Kennedy
- McEwen Centre for Regenerative Medicine, University Health Network, Toronto, Ontario, Canada
| | - Eyal Grunebaum
- Division of Allergy and Immunology, The Hospital for Sick Children, Toronto, Ontario, Canada
- Developmental and Stem Cell Biology Program, Research Institute, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Gordon Keller
- McEwen Centre for Regenerative Medicine, University Health Network, Toronto, Ontario, Canada
- Department of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada
| | - Yigal Dror
- Genetics and Genome Biology, Research Institute, The Hospital for Sick Children, Toronto, Ontario, Canada
- Institute of Medical Science, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
- Division of Haematology/Oncology, Department of Paediatrics, The Hospital for Sick Children and University of Toronto, Toronto, Ontario, Canada
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Sera Y, Yamamoto S, Mutou A, Koba S, Kurokawa Y, Imanaka T, Yamaguchi M. SBDS Gene Mutation Increases ROS Production and Causes DNA Damage as Well as Oxidation of Mitochondrial Membranes in the Murine Myeloid Cell Line 32Dcl3. Biol Pharm Bull 2024; 47:1376-1382. [PMID: 39085077 DOI: 10.1248/bpb.b24-00088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/02/2024]
Abstract
Shwachman-Diamond syndrome (SDS) is an autosomal recessive disease caused by mutation in the Shwachman-Bodian-Diamond syndrome (SBDS) gene. SDS has a variety of clinical features, including exocrine pancreatic insufficiency and hematological dysfunction. Neutropenia is the most common symptom in patients with SDS. SDS is also associated with an elevated risk of developing myelodysplastic syndromes and acute myeloid leukemia. The SBDS protein is involved in ribosome biogenesis, ribosomal RNA metabolism, stabilization of mitotic spindles and cellular stress responses, yet the function of SBDS in detail is still incompletely understood. Considering the diverse function of SBDS, the effect of SBDS seems to be different in different cells and tissues. In this study, we established myeloid cell line 32Dcl3 with a common pathogenic SBDS variant on both alleles in intron 2, 258 + 2T > C, and examined the cellular damage that resulted. We found that the protein synthesis was markedly decreased in the mutant cells. Furthermore, reactive oxygen species (ROS) production was increased, and oxidation of the mitochondrial membrane lipids and DNA damage were induced. These findings provide new insights into the cellular and molecular pathology caused by SBDS deficiency in myeloid cells.
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Affiliation(s)
- Yukihiro Sera
- Laboratory of Physiological Chemistry, Faculty of Pharmaceutical Sciences, Hiroshima International University
| | - Sakura Yamamoto
- Laboratory of Physiological Chemistry, Faculty of Pharmaceutical Sciences, Hiroshima International University
| | - Akane Mutou
- Laboratory of Physiological Chemistry, Faculty of Pharmaceutical Sciences, Hiroshima International University
| | - Shuta Koba
- Laboratory of Physiological Chemistry, Faculty of Pharmaceutical Sciences, Hiroshima International University
| | - Yuki Kurokawa
- Laboratory of Physiological Chemistry, Faculty of Pharmaceutical Sciences, Hiroshima International University
| | - Tsuneo Imanaka
- Laboratory of Physiological Chemistry, Faculty of Pharmaceutical Sciences, Hiroshima International University
| | - Masafumi Yamaguchi
- Laboratory of Physiological Chemistry, Faculty of Pharmaceutical Sciences, Hiroshima International University
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5
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Cipolli M, Boni C, Penzo M, Villa I, Bolamperti S, Baldisseri E, Frattini A, Porta G, Api M, Selicato N, Roccia P, Pollutri D, Busilacchi EM, Poloni A, Caporelli N, D’Amico G, Pegoraro A, Cesaro S, Oyarbide U, Vella A, Lippi G, Corey SJ, Valli R, Polini A, Bezzerri V. Ataluren improves myelopoiesis and neutrophil chemotaxis by restoring ribosome biogenesis and reducing p53 levels in Shwachman-Diamond syndrome cells. Br J Haematol 2024; 204:292-305. [PMID: 37876306 PMCID: PMC10843527 DOI: 10.1111/bjh.19134] [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: 03/23/2023] [Revised: 09/18/2023] [Accepted: 09/20/2023] [Indexed: 10/26/2023]
Abstract
Shwachman-Diamond syndrome (SDS) is characterized by neutropenia, exocrine pancreatic insufficiency and skeletal abnormalities. SDS bone marrow haematopoietic progenitors show increased apoptosis and impairment in granulocytic differentiation. Loss of Shwachman-Bodian-Diamond syndrome (SBDS) expression results in reduced eukaryotic 80S ribosome maturation. Biallelic mutations in the SBDS gene are found in ~90% of SDS patients, ~55% of whom carry the c.183-184TA>CT nonsense mutation. Several translational readthrough-inducing drugs aimed at suppressing nonsense mutations have been developed. One of these, ataluren, has received approval in Europe for the treatment of Duchenne muscular dystrophy. We previously showed that ataluren can restore full-length SBDS protein synthesis in SDS-derived bone marrow cells. Here, we extend our preclinical study to assess the functional restoration of SBDS capabilities in vitro and ex vivo. Ataluren improved 80S ribosome assembly and total protein synthesis in SDS-derived cells, restored myelopoiesis in myeloid progenitors, improved neutrophil chemotaxis in vitro and reduced neutrophil dysplastic markers ex vivo. Ataluren also restored full-length SBDS synthesis in primary osteoblasts, suggesting that its beneficial role may go beyond the myeloid compartment. Altogether, our results strengthened the rationale for a Phase I/II clinical trial of ataluren in SDS patients who harbour the nonsense mutation.
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Affiliation(s)
- Marco Cipolli
- Cystic Fibrosis Center, Azienda Ospedaliera Universitaria Integrata, Verona, Italy
| | - Christian Boni
- Cystic Fibrosis Center, Azienda Ospedaliera Universitaria Integrata, Verona, Italy
| | - Marianna Penzo
- Department of Medical and Surgical Sciences (DIMEC) AND Center for Applied Biomedical Research (CRBA), Alma Mater Studiorum University of Bologna, Bologna, Italy
| | - Isabella Villa
- Institute of Endocrine and Metabolic Sciences, Endocrine and Osteometabolic Lab, IRCCS San Raffaele Hospital, Milano, Italy
| | - Simona Bolamperti
- Institute of Endocrine and Metabolic Sciences, Endocrine and Osteometabolic Lab, IRCCS San Raffaele Hospital, Milano, Italy
| | - Elena Baldisseri
- Cystic Fibrosis Center, Azienda Ospedaliera Universitaria Integrata, Verona, Italy
| | - Annalisa Frattini
- Institute for Genetic and Biomedical Research (IRGB), UOS Milano CNR, Milano, Italy
- Department of Medicine and Surgery (DMC), Universita' degli Studi dell'Insubria, Varese, Italy
| | - Giovanni Porta
- Department of Medicine and Surgery (DMC), Universita' degli Studi dell'Insubria, Varese, Italy
| | - Martina Api
- Cystic Fibrosis Center, Azienda Ospedaliero Universitaria Ospedali Riuniti, Ancona, Italy
| | - Nora Selicato
- Cystic Fibrosis Center, Azienda Ospedaliera Universitaria Integrata, Verona, Italy
| | - Pamela Roccia
- Department of Medicine and Surgery (DMC), Universita' degli Studi dell'Insubria, Varese, Italy
| | - Daniela Pollutri
- Department of Medical and Surgical Sciences (DIMEC) AND Center for Applied Biomedical Research (CRBA), Alma Mater Studiorum University of Bologna, Bologna, Italy
| | | | - Antonella Poloni
- Hematology Clinic, Università Politecnica delle Marche, AOU Ospedali Riuniti, Ancona, Italy
| | - Nicole Caporelli
- Cystic Fibrosis Center, Azienda Ospedaliero Universitaria Ospedali Riuniti, Ancona, Italy
| | - Giovanna D’Amico
- Centro Tettamanti, Fondazione IRCCS San Gerardo dei Tintori, Monza, Italy
| | - Anna Pegoraro
- Cystic Fibrosis Center, Azienda Ospedaliera Universitaria Integrata, Verona, Italy
| | - Simone Cesaro
- Pediatric Hematology Oncology, Ospedale Donna Bambino, Azienda Ospedaliera Universitaria Integrata, Verona, Italy
| | - Usua Oyarbide
- Departments of Cancer Biology and Pediatric Hematology/Oncology and Stem Cell Transplantation, Cleveland Clinic, Cleveland, USA
| | - Antonio Vella
- Unit of Immunology, Azienda Ospedaliera Universitaria Integrata, Verona, Italy
| | - Giuseppe Lippi
- Section of Clinical Biochemistry, Department of Engineering for Innovation Medicine, University of Verona, Verona, Italy
| | - Seth J Corey
- Departments of Cancer Biology and Pediatric Hematology/Oncology and Stem Cell Transplantation, Cleveland Clinic, Cleveland, USA
| | - Roberto Valli
- Department of Medicine and Surgery (DMC), Universita' degli Studi dell'Insubria, Varese, Italy
| | - Alessandro Polini
- Institute of Nanotechnology, National Research Council (CNR-NANOTEC), Lecce, Italy
| | - Valentino Bezzerri
- Cystic Fibrosis Center, Azienda Ospedaliera Universitaria Integrata, Verona, Italy
- Section of Clinical Biochemistry, Department of Engineering for Innovation Medicine, University of Verona, Verona, Italy
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6
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Kawashima N, Oyarbide U, Cipolli M, Bezzerri V, Corey SJ. Shwachman-Diamond syndromes: clinical, genetic, and biochemical insights from the rare variants. Haematologica 2023; 108:2594-2605. [PMID: 37226705 PMCID: PMC10543188 DOI: 10.3324/haematol.2023.282949] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 05/17/2023] [Indexed: 05/26/2023] Open
Abstract
Shwachman-Diamond syndrome is a rare inherited bone marrow failure syndrome characterized by neutropenia, exocrine pancreatic insufficiency, and skeletal abnormalities. In 10-30% of cases, transformation to a myeloid neoplasm occurs. Approximately 90% of patients have biallelic pathogenic variants in the SBDS gene located on human chromosome 7q11. Over the past several years, pathogenic variants in three other genes have been identified to cause similar phenotypes; these are DNAJC21, EFL1, and SRP54. Clinical manifestations involve multiple organ systems and those classically associated with the Shwachman-Diamond syndrome (bone, blood, and pancreas). Neurocognitive, dermatologic, and retinal changes may also be found. There are specific gene-phenotype differences. To date, SBDS, DNAJC21, and SRP54 variants have been associated with myeloid neoplasia. Common to SBDS, EFL1, DNAJC21, and SRP54 is their involvement in ribosome biogenesis or early protein synthesis. These four genes constitute a common biochemical pathway conserved from yeast to humans that involve early stages of protein synthesis and demonstrate the importance of this synthetic pathway in myelopoiesis.
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Affiliation(s)
- Nozomu Kawashima
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan; Departments of Pediatrics and Cancer Biology, Cleveland Clinic, Cleveland, OH
| | - Usua Oyarbide
- Departments of Pediatrics and Cancer Biology, Cleveland Clinic, Cleveland, OH
| | | | | | - Seth J Corey
- Departments of Pediatrics and Cancer Biology, Cleveland Clinic, Cleveland, OH.
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7
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Reilly CR, Shimamura A. Predisposition to myeloid malignancies in Shwachman-Diamond syndrome: biological insights and clinical advances. Blood 2023; 141:1513-1523. [PMID: 36542827 PMCID: PMC10082379 DOI: 10.1182/blood.2022017739] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 12/08/2022] [Accepted: 12/12/2022] [Indexed: 12/24/2022] Open
Abstract
Shwachman-Diamond syndrome (SDS) is an inherited multisystem ribosomopathy characterized by exocrine pancreatic deficiency, bone marrow failure, and predisposition to myeloid malignancies. The pathobiology of SDS results from impaired ribosomal maturation due to the deficiency of SBDS and the inability to evict the antiassociation factor eIF6 from the 60S ribosomal subunit. Clinical outcomes for patients with SDS who develop myeloid malignancies are extremely poor because of high treatment-related toxicities and a high rate of refractory disease/relapse even after allogeneic hematopoietic stem cell transplant (HSCT). Registry data indicate that outcomes are improved for patients with SDS who undergo routine bone marrow surveillance and receive an HSCT before developing an overt malignancy. However, the optimal approach to hematologic surveillance and the timing of HSCT for patients with SDS is not clearly established. Recent studies have elucidated distinct patterns of somatic blood mutations in patients with SDS that either alleviate the ribosome defect via somatic rescue (heterozygous EIF6 inactivation) or disrupt cellular checkpoints, resulting in increased leukemogenic potential (heterozygous TP53 inactivation). Genomic analysis revealed that most myeloid malignancies in patients with SDS have biallelic loss-of-function TP53 mutations. Single-cell DNA sequencing of SDS bone marrow samples can detect premalignant biallelic TP53-mutated clones before clinical diagnosis, suggesting that molecular surveillance may enhance the detection of incipient myeloid malignancies when HSCT may be most effective. Here, we review the clinical, genetic, and biologic features of SDS. In addition, we present evidence supporting the hematologic surveillance for patients with SDS that incorporates clinical, pathologic, and molecular data to risk stratify patients and prioritize transplant evaluation for patients with SDS with high-risk features.
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Affiliation(s)
- Christopher R. Reilly
- Division of Hematological Malignancies, Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA
| | - Akiko Shimamura
- Department of Pediatric Hematology/Oncology, Dana-Farber/Boston Children’s Cancer and Blood Disorders Center, Boston, MA
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8
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Gueiderikh A, Maczkowiak-Chartois F, Rosselli F. A new frontier in Fanconi anemia: From DNA repair to ribosome biogenesis. Blood Rev 2021; 52:100904. [PMID: 34750031 DOI: 10.1016/j.blre.2021.100904] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 10/14/2021] [Accepted: 10/26/2021] [Indexed: 12/27/2022]
Abstract
Described by Guido Fanconi almost 100 years ago, Fanconi anemia (FA) is a rare genetic disease characterized by developmental abnormalities, bone marrow failure (BMF) and cancer predisposition. The proteins encoded by FA-mutated genes (FANC proteins) and assembled in the so-called FANC/BRCA pathway have key functions in DNA repair and replication safeguarding, which loss leads to chromosome structural aberrancies. Therefore, since the 1980s, FA has been considered a genomic instability and chromosome fragility syndrome. However, recent findings have demonstrated new and unexpected roles of FANC proteins in nucleolar homeostasis and ribosome biogenesis, the alteration of which impacts cellular proteostasis. Here, we review the different cellular, biochemical and molecular anomalies associated with the loss of function of FANC proteins and discuss how these anomalies contribute to BMF by comparing FA to other major inherited BMF syndromes. Our aim is to determine the extent to which alterations in the DNA damage response in FA contribute to BMF compared to the consequences of the loss of function of the FANC/BRCA pathway on the other roles of the pathway.
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Affiliation(s)
- Anna Gueiderikh
- CNRS - UMR9019, Équipe labellisée "La Ligue contre le Cancer", 94805 Villejuif, France; Gustave Roussy Cancer Center, 94805 Villejuif, France; Université Paris-Saclay - Paris Sud, Orsay, France.
| | - Frédérique Maczkowiak-Chartois
- CNRS - UMR9019, Équipe labellisée "La Ligue contre le Cancer", 94805 Villejuif, France; Gustave Roussy Cancer Center, 94805 Villejuif, France; Université Paris-Saclay - Paris Sud, Orsay, France.
| | - Filippo Rosselli
- CNRS - UMR9019, Équipe labellisée "La Ligue contre le Cancer", 94805 Villejuif, France; Gustave Roussy Cancer Center, 94805 Villejuif, France; Université Paris-Saclay - Paris Sud, Orsay, France.
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9
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Arhgef2 regulates mitotic spindle orientation in hematopoietic stem cells and is essential for productive hematopoiesis. Blood Adv 2021; 5:3120-3133. [PMID: 34406376 DOI: 10.1182/bloodadvances.2020002539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Accepted: 03/29/2021] [Indexed: 11/20/2022] Open
Abstract
How hematopoietic stem cells (HSCs) coordinate their divisional axis and whether this orientation is important for stem cell-driven hematopoiesis is poorly understood. Single-cell RNA sequencing data from patients with Shwachman-Diamond syndrome (SDS), an inherited bone marrow failure syndrome, show that ARHGEF2, a RhoA-specific guanine nucleotide exchange factor and determinant of mitotic spindle orientation, is specifically downregulated in SDS hematopoietic stem and progenitor cells (HSPCs). We demonstrate that transplanted Arhgef2-/- fetal liver and bone marrow cells yield impaired hematopoietic recovery and a production deficit from long-term HSCs, phenotypes that are not the result of differences in numbers of transplanted HSCs, their cell cycle status, level of apoptosis, progenitor output, or homing ability. Notably, these defects are functionally restored in vivo by overexpression of ARHGEF2 or its downstream activated RHOA GTPase. By using live imaging of dividing HSPCs, we show an increased frequency of misoriented divisions in the absence of Arhgef2. ARHGEF2 knockdown in human HSCs also impairs their ability to regenerate hematopoiesis, culminating in significantly smaller xenografts. Together, these data demonstrate a conserved role for Arhgef2 in orienting HSPC division and suggest that HSCs may divide in certain orientations to establish hematopoiesis, the loss of which could contribute to HSC dysfunction in bone marrow failure.
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10
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Jain A, Nilatawong P, Mamak N, Jensen LT, Jensen AN. Disruption in iron homeostasis and impaired activity of iron-sulfur cluster containing proteins in the yeast model of Shwachman-Diamond syndrome. Cell Biosci 2020; 10:105. [PMID: 32944219 PMCID: PMC7488397 DOI: 10.1186/s13578-020-00468-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Accepted: 09/04/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Shwachman-Diamond syndrome (SDS) is a congenital disease that affects the bone marrow, skeletal system, and pancreas. The majority of patients with SDS have mutations in the SBDS gene, involved in ribosome biogenesis as well as other processes. A Saccharomyces cerevisiae model of SDS, lacking Sdo1p the yeast orthologue of SBDS, was utilized to better understand the molecular pathogenesis in the development of this disease. RESULTS Deletion of SDO1 resulted in a three-fold over-accumulation of intracellular iron. Phenotypes associated with impaired iron-sulfur (ISC) assembly, up-regulation of the high affinity iron uptake pathway, and reduced activities of ISC containing enzymes aconitase and succinate dehydrogenase, were observed in sdo1∆ yeast. In cells lacking Sdo1p, elevated levels of reactive oxygen species (ROS) and protein oxidation were reduced with iron chelation, using a cell impermeable iron chelator. In addition, the low activity of manganese superoxide dismutase (Sod2p) seen in sdo1∆ cells was improved with iron chelation, consistent with the presence of reactive iron from the ISC assembly pathway. In yeast lacking Sdo1p, the mitochondrial voltage-dependent anion channel (VDAC) Por1p is over-expressed and its deletion limits iron accumulation and increases activity of aconitase and succinate dehydrogenase. CONCLUSIONS We propose that oxidative stress from POR1 over-expression, resulting in impaired activity of ISC containing proteins and disruptions in iron homeostasis, may play a role in disease pathogenesis in SDS patients.
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Affiliation(s)
- Ayushi Jain
- Department of Pathobiology, Faculty of Science, Mahidol University, 272 Rama 6 Road, Bangkok, 10400 Thailand
| | - Phubed Nilatawong
- Department of Pathobiology, Faculty of Science, Mahidol University, 272 Rama 6 Road, Bangkok, 10400 Thailand
- Division of Biopharmacy, Faculty of Pharmaceutical Sciences, Ubon Ratchathani University, Ubon Ratchathani, 34190 Thailand
| | - Narinrat Mamak
- Toxicology Graduate Program, Faculty of Science, Mahidol University, Bangkok, 10400 Thailand
| | - Laran T. Jensen
- Department of Biochemistry, Faculty of Science, Mahidol University, Bangkok, 10400 Thailand
| | - Amornrat Naranuntarat Jensen
- Department of Pathobiology, Faculty of Science, Mahidol University, 272 Rama 6 Road, Bangkok, 10400 Thailand
- Pathology Information and Learning Center, Department of Pathobiology, Faculty of Science, Mahidol University, Bangkok, 10400 Thailand
- Center of Excellence on Environmental Health and Toxicology (EHT), Bangkok, Thailand
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11
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Heidemann S, Bursic B, Zandi S, Li H, Abelson S, Klaassen RJ, Abish S, Rayar M, Breakey VR, Moshiri H, Dhanraj S, de Borja R, Shlien A, Dick JE, Dror Y. Cellular and molecular architecture of hematopoietic stem cells and progenitors in genetic models of bone marrow failure. JCI Insight 2020; 5:131018. [PMID: 31990679 DOI: 10.1172/jci.insight.131018] [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: 06/18/2019] [Accepted: 01/15/2020] [Indexed: 12/26/2022] Open
Abstract
Inherited bone marrow failure syndromes, such as Fanconi anemia (FA) and Shwachman-Diamond syndrome (SDS), feature progressive cytopenia and a risk of acute myeloid leukemia (AML). Using deep phenotypic analysis of early progenitors in FA/SDS bone marrow samples, we revealed selective survival of progenitors that phenotypically resembled granulocyte-monocyte progenitors (GMP). Whole-exome and targeted sequencing of GMP-like cells in leukemia-free patients revealed a higher mutation load than in healthy controls and molecular changes that are characteristic of AML: increased G>A/C>T variants, decreased A>G/T>C variants, increased trinucleotide mutations at Xp(C>T)pT, and decreased mutation rates at Xp(C>T)pG sites compared with other Xp(C>T)pX sites and enrichment for Cancer Signature 1 (X indicates any nucleotide). Potential preleukemic targets in the GMP-like cells from patients with FA/SDS included SYNE1, DST, HUWE1, LRP2, NOTCH2, and TP53. Serial analysis of GMPs from an SDS patient who progressed to leukemia revealed a gradual increase in mutational burden, enrichment of G>A/C>T signature, and emergence of new clones. Interestingly, the molecular signature of marrow cells from 2 FA/SDS patients with leukemia was similar to that of FA/SDS patients without transformation. The predicted founding clones in SDS-derived AML harbored mutations in several genes, including TP53, while in FA-derived AML the mutated genes included ARID1B and SFPQ. We describe an architectural change in the hematopoietic hierarchy of FA/SDS with remarkable preservation of GMP-like populations harboring unique mutation signatures. GMP-like cells might represent a cellular reservoir for clonal evolution.
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Affiliation(s)
- Stephanie Heidemann
- Genetics & Genome Biology Program and.,Marrow Failure and Myelodysplasia (Pre-leukemia) Program, Division of Hematology/Oncology, Department of Pediatrics, The Hospital for Sick Children, Toronto, Ontario, Canada
| | | | - Sasan Zandi
- Princess Margaret Cancer Centre, Toronto, Ontario, Canada
| | | | - Sagi Abelson
- Princess Margaret Cancer Centre, Toronto, Ontario, Canada
| | - Robert J Klaassen
- Department of Pediatrics, Children's Hospital of Eastern Ontario, Ottawa, Ontario, Canada
| | - Sharon Abish
- Hematology-Oncology, Montreal Children's Hospital, Montreal, Quebec, Canada
| | - Meera Rayar
- Division of Hematology, Oncology & Bone Marrow Transplant, University of British Columbia and British Columbia Children's Hospital, Vancouver, British Columbia, Canada
| | - Vicky R Breakey
- Department of Pediatrics, McMaster University, Hamilton, Ontario, Canada
| | | | - Santhosh Dhanraj
- Genetics & Genome Biology Program and.,Institute of Medical Science and
| | | | | | - John E Dick
- Princess Margaret Cancer Centre, Toronto, Ontario, Canada.,Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
| | - Yigal Dror
- Genetics & Genome Biology Program and.,Marrow Failure and Myelodysplasia (Pre-leukemia) Program, Division of Hematology/Oncology, Department of Pediatrics, The Hospital for Sick Children, Toronto, Ontario, Canada.,Institute of Medical Science and
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12
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Early evolution of BRAFV600 status in the blood of melanoma patients correlates with clinical outcome and identifies patients refractory to therapy. Melanoma Res 2018; 28:195-203. [DOI: 10.1097/cmr.0000000000000432] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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13
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14
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He Y, Jia S, Dewan RK, Liao N. Novel mutations in patients with hereditary red blood cell membrane disorders using next-generation sequencing. Gene 2017; 627:556-562. [PMID: 28694211 DOI: 10.1016/j.gene.2017.07.009] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2017] [Accepted: 07/06/2017] [Indexed: 02/07/2023]
Abstract
To diagnose and investigate the genotype-phenotype relationship in intractable hereditary red blood cell (RBC) membrane cases, we have utilized next-generation sequencing (NGS) to develop a high-throughput, highly sensitive assay. Three unrelated families including 15 individuals were analysed with a panel interrogating 600 genes related to haematopathy disorders. Where possible, inheritance patterns of pathogenic mutations were determined by sequencing the relatives. We identified 2 novel mutations in ANK1 (Y216X and E142X) responsible for hereditary spherocytosis (HS) that were stop-gain single nucleotide variants (SNVs). Furthermore, a novel SPTA1 mutation (H54P) was identified; it is a nonsynonymous SNV and is associated with hereditary elliptocytosis (HE). In addition, patients who also carried erythropoiesis gene mutations showed more severe disease phenotype. The NGS panel provides a fast and accurate method for molecular diagnosis in patients with intractable hereditary RBC membrane disorders. An approach integrating medical history, clinical and molecular testing, and pedigree analysis is beneficial for these patients and families.
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Affiliation(s)
- Yunyan He
- Department of Pediatrics, The First Affiliated Hospital of Guangxi Medical University, N0.6, Shuangyong Road, Qingxiu District, Nanning, Guangxi Province 530021, PR China
| | - Siyuan Jia
- Guangxi Medical University, N0.22, Shuangyong Road, Qingxiu District, Nanning, Guangxi Province 530021, PR China
| | - Roma Kajal Dewan
- Guangxi Medical University, N0.22, Shuangyong Road, Qingxiu District, Nanning, Guangxi Province 530021, PR China
| | - Ning Liao
- Department of Pediatrics, The First Affiliated Hospital of Guangxi Medical University, N0.6, Shuangyong Road, Qingxiu District, Nanning, Guangxi Province 530021, PR China.
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15
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Abstract
Abstract
There is an Inside Blood Commentary on this article in this issue.
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16
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Calamita P, Miluzio A, Russo A, Pesce E, Ricciardi S, Khanim F, Cheroni C, Alfieri R, Mancino M, Gorrini C, Rossetti G, Peluso I, Pagani M, Medina DL, Rommens J, Biffo S. SBDS-Deficient Cells Have an Altered Homeostatic Equilibrium due to Translational Inefficiency Which Explains their Reduced Fitness and Provides a Logical Framework for Intervention. PLoS Genet 2017; 13:e1006552. [PMID: 28056084 PMCID: PMC5249248 DOI: 10.1371/journal.pgen.1006552] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Revised: 01/20/2017] [Accepted: 12/24/2016] [Indexed: 12/26/2022] Open
Abstract
Ribosomopathies are a family of inherited disorders caused by mutations in genes necessary for ribosomal function. Shwachman-Diamond Bodian Syndrome (SDS) is an autosomal recessive disease caused, in most patients, by mutations of the SBDS gene. SBDS is a protein required for the maturation of 60S ribosomes. SDS patients present exocrine pancreatic insufficiency, neutropenia, chronic infections, and skeletal abnormalities. Later in life, patients are prone to myelodisplastic syndrome and acute myeloid leukemia (AML). It is unknown why patients develop AML and which cellular alterations are directly due to the loss of the SBDS protein. Here we derived mouse embryonic fibroblast lines from an SbdsR126T/R126T mouse model. After their immortalization, we reconstituted them by adding wild type Sbds. We then performed a comprehensive analysis of cellular functions including colony formation, translational and transcriptional RNA-seq, stress and drug sensitivity. We show that: 1. Mutant Sbds causes a reduction in cellular clonogenic capability and oncogene-induced transformation. 2. Mutant Sbds causes a marked increase in immature 60S subunits, limited impact on mRNA specific initiation of translation, but reduced global protein synthesis capability. 3. Chronic loss of SBDS activity leads to a rewiring of gene expression with reduced ribosomal capability, but increased lysosomal and catabolic activity. 4. Consistently with the gene signature, we found that SBDS loss causes a reduction in ATP and lactate levels, and increased susceptibility to DNA damage. Combining our data, we conclude that a cell-specific fragile phenotype occurs when SBDS protein drops below a threshold level, and propose a new interpretation of the disease. Shwachman Diamond syndrome (SDS) is an inherited disease. SDS presents, as hallmarks, exocrine pancreatic insufficiency, increased rate of infections, and higher incidence of leukemia. Most cases are due to mutations in the SBDS gene. SBDS encodes for a ribosome maturation factor. In this study, we immortalized mouse fibroblasts carrying one of the most common mutation of SDS patients and performed a thorough analysis of their properties. We show that the loss of SBDS activity causes a rewiring of gene expression and cellular metabolism. Overall we find a reduction of protein synthesis capability, a lower energy status, and increased lysosomal capability. SBDS mutant cells have an increased susceptibility to various forms of stress, but are strikingly resistant to oncogene-induced transformation. We propose a model that explains the complex phenotype of SDS patients and suggests roads for a rationale treatment.
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Affiliation(s)
- Piera Calamita
- INGM, National Institute of Molecular Genetics, “Romeo ed Enrica Invernizzi”, Milan, Italy
- * E-mail: (SB); (PC)
| | - Annarita Miluzio
- INGM, National Institute of Molecular Genetics, “Romeo ed Enrica Invernizzi”, Milan, Italy
| | - Arianna Russo
- INGM, National Institute of Molecular Genetics, “Romeo ed Enrica Invernizzi”, Milan, Italy
- DiSIT, University of Eastern Piedmont, Alessandria, Italy
| | - Elisa Pesce
- INGM, National Institute of Molecular Genetics, “Romeo ed Enrica Invernizzi”, Milan, Italy
| | - Sara Ricciardi
- INGM, National Institute of Molecular Genetics, “Romeo ed Enrica Invernizzi”, Milan, Italy
| | - Farhat Khanim
- School of Biosciences, University of Birmingham Edgbaston Birmingham, United Kingdom
| | - Cristina Cheroni
- INGM, National Institute of Molecular Genetics, “Romeo ed Enrica Invernizzi”, Milan, Italy
| | - Roberta Alfieri
- INGM, National Institute of Molecular Genetics, “Romeo ed Enrica Invernizzi”, Milan, Italy
| | - Marilena Mancino
- INGM, National Institute of Molecular Genetics, “Romeo ed Enrica Invernizzi”, Milan, Italy
| | - Chiara Gorrini
- Campbell Family Institute for Breast Cancer Research, University Health Network, Toronto, Ontario, Canada
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Grazisa Rossetti
- INGM, National Institute of Molecular Genetics, “Romeo ed Enrica Invernizzi”, Milan, Italy
| | - Ivana Peluso
- Telethon Institute of Genetics and Medicine (TIGEM)-Fondazione Telethon, Pozzuoli, Italy
| | - Massimiliano Pagani
- INGM, National Institute of Molecular Genetics, “Romeo ed Enrica Invernizzi”, Milan, Italy
- Department of Medical Biotechnology and Translational Medicine, University of Milan, Milan, Italy
| | - Diego L. Medina
- Telethon Institute of Genetics and Medicine (TIGEM)-Fondazione Telethon, Pozzuoli, Italy
| | | | - Stefano Biffo
- INGM, National Institute of Molecular Genetics, “Romeo ed Enrica Invernizzi”, Milan, Italy
- DBS, Università degli Studi di Milano, Milan, Italy
- * E-mail: (SB); (PC)
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17
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Nacci L, Valli R, Maria Pinto R, Zecca M, Cipolli M, Morini J, Cesaro S, Boveri E, Rosti V, Corti P, Ambroni M, Pasquali F, Danesino C, Maserati E, Minelli A. Parental origin of the deletion del(20q) in Shwachman-Diamond patients and loss of the paternally derived allele of the imprintedL3MBTL1gene. Genes Chromosomes Cancer 2016; 56:51-58. [DOI: 10.1002/gcc.22401] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Revised: 08/11/2016] [Accepted: 08/12/2016] [Indexed: 11/11/2022] Open
Affiliation(s)
- Lucia Nacci
- Department of Molecular Medicine; University of Pavia; Pavia Italy
| | - Roberto Valli
- Department of Clinical and Experimental Medicine; University of Insubria; Varese Italy
| | - Rita Maria Pinto
- Ospedale Bambino Gesù IRCCS; Oncoematologia e Medicina Trasfusionale; Roma Italy
| | - Marco Zecca
- Oncoematologia Pediatrica, Fondazione IRCCS Policlinico San Matteo; Pavia Italy
| | - Marco Cipolli
- Cystic Fibrosis Centre, Azienda Ospedaliera Universitaria; Verona Italy
| | | | - Simone Cesaro
- Oncoematologia Pediatrica, Azienda Ospedaliera Universitaria Integrata; Verona Italy
| | - Emanuela Boveri
- Fondazione IRCCS Policlinico; Anatomic Pathology Section; San Matteo, Pavia Italy
| | - Vittorio Rosti
- IRCCS Policlinico San Matteo; Center for the Study of Myelofibrosis, Biotechnology Research Area; Pavia Italy
| | - Paola Corti
- Pediatrics Unit, Fondazione Medico e Brianza per il Bambino e la sua Mamma; Monza Italy
| | - Maura Ambroni
- Cystic Fibrosis Regional Center, Ospedale M. Bufalini; Cesena Italy
| | - Francesco Pasquali
- Department of Clinical and Experimental Medicine; University of Insubria; Varese Italy
| | - Cesare Danesino
- Department of Molecular Medicine; University of Pavia; Pavia Italy
| | - Emanuela Maserati
- Department of Clinical and Experimental Medicine; University of Insubria; Varese Italy
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18
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Ravera S, Dufour C, Cesaro S, Bottega R, Faleschini M, Cuccarolo P, Corsolini F, Usai C, Columbaro M, Cipolli M, Savoia A, Degan P, Cappelli E. Evaluation of energy metabolism and calcium homeostasis in cells affected by Shwachman-Diamond syndrome. Sci Rep 2016; 6:25441. [PMID: 27146429 PMCID: PMC4857091 DOI: 10.1038/srep25441] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2015] [Accepted: 04/12/2016] [Indexed: 02/07/2023] Open
Abstract
Isomorphic mutation of the SBDS gene causes Shwachman-Diamond syndrome (SDS). SDS is a rare genetic bone marrow failure and cancer predisposition syndrome. SDS cells have ribosome biogenesis and their protein synthesis altered, which are two high-energy consuming cellular processes. The reported changes in reactive oxygen species production, endoplasmic reticulum stress response and reduced mitochondrial functionality suggest an energy production defect in SDS cells. In our work, we have demonstrated that SDS cells display a Complex IV activity impairment, which causes an oxidative phosphorylation metabolism defect, with a consequent decrease in ATP production. These data were confirmed by an increased glycolytic rate, which compensated for the energetic stress. Moreover, the signalling pathways involved in glycolysis activation also appeared more activated; i.e. we reported AMP-activated protein kinase hyper-phosphorylation. Notably, we also observed an increase in a mammalian target of rapamycin phosphorylation and high intracellular calcium concentration levels ([Ca(2+)]i), which probably represent new biochemical equilibrium modulation in SDS cells. Finally, the SDS cell response to leucine (Leu) was investigated, suggesting its possible use as a therapeutic adjuvant to be tested in clinical trials.
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Affiliation(s)
- Silvia Ravera
- DIFAR-Biochemistry Lab., Department of Pharmacy, University of Genova, 16132 Genova, Italy
| | - Carlo Dufour
- Haematology Unit, Istituto Giannina Gaslini, 16148 Genova, Italy
| | - Simone Cesaro
- Oncoematologia Pediatrica, Azienda Ospedaleira universitaria Integrata, Verona, Italy
| | - Roberta Bottega
- Department of Medical Sciences, University of Trieste, Trieste, Italy
| | - Michela Faleschini
- Institute for Maternal and Child Health – IRCCS Burlo Garofolo, Trieste, Italy
| | - Paola Cuccarolo
- S. C. Mutagenesis, IRCCS AOU San Martino – IST (Istituto Nazionale per la Ricerca sul Cancro), CBA Torre A2, 16123 Genova, Italy
| | - Fabio Corsolini
- Centro Diagnostica Genetica e Biochimica Malattie Metaboliche, Istituto Giannina Gaslini, 16148 Genova, Italy
| | - Cesare Usai
- Institute of Biophysics, National Research Council, 16149 Genova, Italy
| | - Marta Columbaro
- SC Laboratory of Musculoskeletal Cell Biology, IOR, Bologna, Italy
| | - Marco Cipolli
- Cystic Fibrosis Centre, Azienda Ospedaliera Universitaria, Piazzale Stefani, 1-37126 Verona, Italy
| | - Anna Savoia
- Institute for Maternal and Child Health – IRCCS Burlo Garofolo, Trieste, Italy
- Department of Medical Sciences, University of Trieste, Trieste, Italy
| | - Paolo Degan
- S. C. Mutagenesis, IRCCS AOU San Martino – IST (Istituto Nazionale per la Ricerca sul Cancro), CBA Torre A2, 16123 Genova, Italy
| | - Enrico Cappelli
- Haematology Unit, Istituto Giannina Gaslini, 16148 Genova, Italy
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19
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In K, Zaini MA, Müller C, Warren AJ, von Lindern M, Calkhoven CF. Shwachman-Bodian-Diamond syndrome (SBDS) protein deficiency impairs translation re-initiation from C/EBPα and C/EBPβ mRNAs. Nucleic Acids Res 2016; 44:4134-46. [PMID: 26762974 PMCID: PMC4872075 DOI: 10.1093/nar/gkw005] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Accepted: 12/31/2015] [Indexed: 01/24/2023] Open
Abstract
Mutations in the Shwachman–Bodian–Diamond Syndrome (SBDS) gene cause Shwachman–Diamond Syndrome (SDS), a rare congenital disease characterized by bone marrow failure with neutropenia, exocrine pancreatic dysfunction and skeletal abnormalities. The SBDS protein is important for ribosome maturation and therefore SDS belongs to the ribosomopathies. It is unknown, however, if loss of SBDS functionality affects the translation of specific mRNAs and whether this could play a role in the development of the clinical features of SDS. Here, we report that translation of the C/EBPα and -β mRNAs, that are indispensible regulators of granulocytic differentiation, is altered by SBDS mutations or knockdown. We show that SBDS function is specifically required for efficient translation re-initiation into the protein isoforms C/EBPα-p30 and C/EBPβ-LIP, which is controlled by a single cis-regulatory upstream open reading frame (uORF) in the 5′ untranslated regions (5′ UTRs) of both mRNAs. Furthermore, we show that as a consequence of the C/EBPα and -β deregulation the expression of MYC is decreased with associated reduction in proliferation, suggesting that failure of progenitor proliferation contributes to the haematological phenotype of SDS. Therefore, our study provides the first indication that disturbance of specific translation by loss of SBDS function may contribute to the development of the SDS phenotype.
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Affiliation(s)
- Kyungmin In
- Leibniz Institute on Aging - Fritz Lipmann Institute, Beutenbergstrasse 11, D-07745 Jena, Germany
| | - Mohamad A Zaini
- Leibniz Institute on Aging - Fritz Lipmann Institute, Beutenbergstrasse 11, D-07745 Jena, Germany European Institute for the Biology of Ageing (ERIBA), University Medical Center Groningen, University of Groningen, 9700 AD, Groningen, The Netherlands
| | - Christine Müller
- Leibniz Institute on Aging - Fritz Lipmann Institute, Beutenbergstrasse 11, D-07745 Jena, Germany European Institute for the Biology of Ageing (ERIBA), University Medical Center Groningen, University of Groningen, 9700 AD, Groningen, The Netherlands
| | - Alan J Warren
- Cambridge Institute for Medical Research, Wellcome Trust-Medical Research Council Stem Cell Institute, the Department of Haematology, University of Cambridge, CB2 0XY, Cambridge, UK
| | - Marieke von Lindern
- Sanquin Research and Landsteiner Laboratory, Department of Hematopoiesis, 1066 CX Amsterdam, The Netherlands
| | - Cornelis F Calkhoven
- Leibniz Institute on Aging - Fritz Lipmann Institute, Beutenbergstrasse 11, D-07745 Jena, Germany European Institute for the Biology of Ageing (ERIBA), University Medical Center Groningen, University of Groningen, 9700 AD, Groningen, The Netherlands
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20
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Dhanraj S, Gunja SMR, Deveau AP, Nissbeck M, Boonyawat B, Coombs AJ, Renieri A, Mucciolo M, Marozza A, Buoni S, Turner L, Li H, Jarrar A, Sabanayagam M, Kirby M, Shago M, Pinto D, Berman JN, Scherer SW, Virtanen A, Dror Y. Bone marrow failure and developmental delay caused by mutations in poly(A)-specific ribonuclease (PARN). J Med Genet 2015; 52:738-48. [DOI: 10.1136/jmedgenet-2015-103292] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Accepted: 08/18/2015] [Indexed: 12/11/2022]
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21
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Cardiovascular abnormalities in primary immunodeficiency diseases. LYMPHOSIGN JOURNAL-THE JOURNAL OF INHERITED IMMUNE DISORDERS 2015. [DOI: 10.14785/lpsn-2014-0013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
In recent years, increasing numbers of patients with primary immune deficiency (PID) are being recognized as also suffering from cardiovascular system (CVS) abnormalities. These CVS defects might be explained by infectious or autoimmune etiologies, as well as by the role of specific genes and the immune system in the development and function of CVS tissues. Here, we provide the first comprehensive review of the clinical, potentially pathogenic mechanisms, and the management of PID, as well as the associated immune and CVS defects. In addition to some well-known associations of PID with CVS abnormalities, such as DiGeorge syndrome and CHARGE anomaly, we describe the cardiac defects associated with Omenn syndrome, calcium channel deficiencies, DNA repair defects, common variable immunodeficiency, Roifman syndrome, various neutrophil/macrophage defects, FADD deficiency, and HOIL1 deficiency. Moreover, we detail the vascular abnormalities recognized in chronic mucocutaneous candidiasis, chronic granulomatous disease, Wiskott–Aldrich syndrome, Schimke immuno-osseus dysplasia, hyper-IgE syndrome, MonoMAC syndrome, and X-linked lymphoproliferative disease. In conclusion, the expanding spectrum of PID requires increased alertness to the possibility of CVS involvement as an important contributor to the diagnosis and management of these patients.
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22
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Ruggero D, Shimamura A. Marrow failure: a window into ribosome biology. Blood 2014; 124:2784-92. [PMID: 25237201 PMCID: PMC4215310 DOI: 10.1182/blood-2014-04-526301] [Citation(s) in RCA: 85] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2014] [Accepted: 05/27/2014] [Indexed: 12/16/2022] Open
Abstract
Diamond-Blackfan anemia, Shwachman-Diamond syndrome, and dyskeratosis congenita are inherited syndromes characterized by marrow failure, congenital anomalies, and cancer predisposition. Genetic and molecular studies have uncovered distinct abnormalities in ribosome biogenesis underlying each of these 3 disorders. How defects in ribosomes, the essential organelles required for protein biosynthesis in all cells, cause tissue-specific abnormalities in human disease remains a question of fundamental scientific and medical importance. Here we review the overlapping and distinct clinical features of these 3 syndromes and discuss current knowledge regarding the ribosomal pathways disrupted in each of these disorders. We also explore the increasing complexity of ribosome biology and how this informs our understanding of developmental biology and human disease.
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Affiliation(s)
- Davide Ruggero
- Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, San Francisco, CA
| | - Akiko Shimamura
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA; Pediatric Hematology/Oncology, Seattle Children's Hospital, Seattle, WA; and Department of Pediatrics, University of Washington, Seattle, WA
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23
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Haematopoietic stem cells require a highly regulated protein synthesis rate. Nature 2014; 509:49-54. [PMID: 24670665 PMCID: PMC4015626 DOI: 10.1038/nature13035] [Citation(s) in RCA: 461] [Impact Index Per Article: 46.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2013] [Accepted: 01/15/2014] [Indexed: 12/19/2022]
Abstract
Many aspects of cellular physiology remain unstudied in somatic stem cells. For example, there are almost no data on protein synthesis in any somatic stem cell. We found that the amount of protein synthesized per hour in haematopoietic stem cells (HSCs) in vivo was lower than in most other haematopoietic cells, even if we controlled for differences in cell cycle status or forced HSCs to undergo self-renewing divisions. Reduced ribosome function in Rpl24Bst/+ mice further reduced protein synthesis in HSCs and impaired HSC function. Pten deletion increased protein synthesis in HSCs but also reduced HSC function. Rpl24Bst/+ cell-autonomously rescued the effects of Pten deletion in HSCs, blocking the increase in protein synthesis, restoring HSC function, and delaying leukaemogenesis. Pten deficiency thus depletes HSCs and promotes leukaemia partly by increasing protein synthesis. Either increased or decreased protein synthesis impairs HSC function.
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24
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Identifying arsenic trioxide (ATO) functions in leukemia cells by using time series gene expression profiles. Gene 2014; 535:312-7. [DOI: 10.1016/j.gene.2013.10.072] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2013] [Revised: 10/18/2013] [Accepted: 10/30/2013] [Indexed: 01/30/2023]
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25
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Ruggero D. Translational control in cancer etiology. Cold Spring Harb Perspect Biol 2013; 5:cshperspect.a012336. [PMID: 22767671 DOI: 10.1101/cshperspect.a012336] [Citation(s) in RCA: 221] [Impact Index Per Article: 20.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The link between perturbations in translational control and cancer etiology is becoming a primary focus in cancer research. It has now been established that genetic alterations in several components of the translational apparatus underlie spontaneous cancers as well as an entire class of inherited syndromes known as "ribosomopathies" associated with increased cancer susceptibility. These discoveries have illuminated the importance of deregulations in translational control to very specific cellular processes that contribute to cancer etiology. In addition, a growing body of evidence supports the view that deregulation of translational control is a common mechanism by which diverse oncogenic pathways promote cellular transformation and tumor development. Indeed, activation of these key oncogenic pathways induces rapid and dramatic translational reprogramming both by increasing overall protein synthesis and by modulating specific mRNA networks. These translational changes promote cellular transformation, impacting almost every phase of tumor development. This paradigm represents a new frontier in the multihit model of cancer formation and offers significant promise for innovative cancer therapies. Current research, in conjunction with cutting edge technologies, will further enable us to explore novel mechanisms of translational control, functionally identify translationally controlled mRNA groups, and unravel their impact on cellular transformation and tumorigenesis.
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Affiliation(s)
- Davide Ruggero
- Helen Diller Cancer Center, School of Medicine, University of California, San Francisco, CA 94158, USA.
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26
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Sezgin G, Henson AL, Nihrane A, Singh S, Wattenberg M, Alard P, Ellis SR, Liu JM. Impaired growth, hematopoietic colony formation, and ribosome maturation in human cells depleted of Shwachman-Diamond syndrome protein SBDS. Pediatr Blood Cancer 2013; 60:281-6. [PMID: 22997148 DOI: 10.1002/pbc.24300] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2012] [Accepted: 08/06/2012] [Indexed: 12/14/2022]
Abstract
BACKGROUND Shwachman-Diamond syndrome (SDS), associated with SBDS mutations, is characterized by pancreatic exocrine dysfunction and marrow failure. Sdo1, the yeast ortholog of SBDS, is implicated in maturation of the 60S ribosomal subunit, with delayed export of 60S-like particles from the nucleoplasm when depleted. Sdo1 is needed for release of the anti-subunit association factor Tif6 from 60S subunits, and Tif6 may not be recycled to the nucleus when Sdo1 is absent. METHODS To clarify the role of SBDS in human ribosome function, TF-1 erythroleukemia and A549 lung carcinoma cells were transfected with vectors expressing RNAi against SBDS. RESULTS Growth and hematopoietic colony forming potential of TF-1 knockdown cells were markedly hindered when compared to controls. To analyze the effect of SBDS on 60S subunit maturation in A549 cells, subunit localization was assessed by transfection with a vector expressing a fusion between human RPL29 and GFP: we found a higher percentage of SBDS-depleted cells with nuclear localization of 60S subunits. Polysome analysis of TF-1 knockdown cells showed a decrease in free 60S and 80S subunits. We also analyzed the levels of eIF6 (human ortholog of Tif6) following near-complete knockdown of SBDS in TF-1 cells and found an approximately 20% increase in the amount of eIF6 associated with the 60S subunit. CONCLUSIONS We conclude that knockdown of SBDS leads to growth inhibition and defects in ribosome maturation, suggesting a role for wild-type SBDS in nuclear export of pre-60S subunits. Furthermore, knockdown of SBDS may interfere with eIF6 recycling.
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Affiliation(s)
- Gulay Sezgin
- The Feinstein Institute for Medical Research, Manhasset, New York, USA
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Activation of the mTOR signaling pathway by L-leucine in 5q- syndrome and other RPS14-deficient erythroblasts. Leukemia 2013; 27:1760-3. [PMID: 23337929 DOI: 10.1038/leu.2013.20] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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Abstract
Shwachman-Diamond syndrome (SDS) is an autosomal-recessive marrow failure syndrome with a predisposition to leukemia. SDS patients harbor biallelic mutations in the SBDS gene, resulting in low levels of SBDS protein. Data from nonhuman models demonstrate that the SBDS protein facilitates the release of eIF6, a factor that prevents ribosome joining. The complete abrogation of Sbds expression in these models results in severe cellular and lethal physiologic abnormalities that differ from the human disease phenotype. Because human SDS cells are characterized by partial rather than complete loss of SBDS expression, we interrogated SDS patient cells for defects in ribosomal assembly. SDS patient cells exhibit altered ribosomal profiles and impaired association of the 40S and 60S subunits. Introduction of a wild-type SBDS cDNA into SDS patient cells corrected the ribosomal association defect, while patient-derived SBDS point mutants only partially improved subunit association. Knockdown of eIF6 expression improved ribosomal subunit association but did not correct the hematopoietic defect of SBDS-deficient cells. In summary, we demonstrate an SBDS-dependent ribosome maturation defect in SDS patient cells. The role of ribosomal subunit joining in marrow failure warrants further investigation.
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Activation of the mTOR pathway by the amino acid (L)-leucine in the 5q- syndrome and other ribosomopathies. Adv Biol Regul 2012; 53:8-17. [PMID: 23031788 DOI: 10.1016/j.jbior.2012.09.002] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2012] [Accepted: 09/04/2012] [Indexed: 01/22/2023]
Abstract
Patients with the 5q- syndrome and Diamond-Blackfan anemia (DBA) suffer from a severe macrocytic anemia. The 5q- syndrome and DBA are disorders of aberrant ribosome biogenesis (ribosomopathies) and haploinsufficiency of the ribosomal protein genes RPS14 and RPS19, respectively, underlies the anemia found in these disorders. Erythroblasts obtained from patients with the 5q- syndrome and DBA show impaired mRNA translation and this defect in translation may represent a potential therapeutic target in these ribosomopathies. There are some indications that the amino acid l-leucine, a translation enhancer, may have some efficacy in this group of disorders. Recent studies have shown that l-leucine treatment of zebrafish and murine models of the 5q- syndrome and DBA results in a marked improvement in the anemia. l-leucine treatment of RPS14-deficient and RPS19-deficient erythroblasts and erythroblasts from patients with the 5q- syndrome has been shown to result in an increase in cell proliferation, erythroid differentiation and mRNA translation in culture. l-leucine has been shown to improve hemoglobin levels and transfusion independence in a patient with DBA. l-leucine activates the mTOR (mammalian target of rapamycin) signaling pathway that controls cell growth and mRNA translation. There is evidence to suggest that the promotion of translation via the mTOR pathway by l-leucine is the mechanism that underlies the enhanced erythroid progenitor cell growth and differentiation observed in animal and cellular models of the 5q- syndrome and DBA treated with this amino acid. These data support the rationale for clinical trials of l-leucine as a therapeutic agent for the 5q- syndrome and DBA.
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