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Candoni A, Coppola G. A 2024 Update on Menin Inhibitors. A New Class of Target Agents against KMT2A-Rearranged and NPM1-Mutated Acute Myeloid Leukemia. Hematol Rep 2024; 16:244-254. [PMID: 38651453 PMCID: PMC11036224 DOI: 10.3390/hematolrep16020024] [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: 01/22/2024] [Revised: 04/01/2024] [Accepted: 04/12/2024] [Indexed: 04/25/2024] Open
Abstract
Menin inhibitors are new and promising agents currently in clinical development that target the HOX/MEIS1 transcriptional program which is critical for leukemogenesis in histone-lysine N-methyltransferase 2A-rearranged (KMT2Ar) and in NPM1-mutated (NPM1mut) acute leukemias. The mechanism of action of this new class of agents is based on the disruption of the menin-KMT2A complex (consisting of chromatin remodeling proteins), leading to the differentiation and apoptosis of AML cells expressing KMT2A or with mutated NPM1. To date, this new class of drugs has been tested in phase I and II clinical trials, both alone and in combination with synergistic drugs showing promising results in terms of response rates and safety in heavily pre-treated acute leukemia patients. In this brief review, we summarize the key findings on menin inhibitors, focusing on the mechanism of action and preliminary clinical data on the treatment of acute myeloid leukemia with this promising new class of agents, particularly revumenib and ziftomenib.
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Affiliation(s)
- Anna Candoni
- Section of Haematology, Department of Medical and Surgical Sciences, University of Modena and Reggio Emilia, Via del Pozzo 71, 41123 Modena, Italy;
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2
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Mende H, Khatri A, Lange C, Poveda-Cuevas SA, Tascher G, Covarrubias-Pinto A, Löhr F, Koschade SE, Dikic I, Münch C, Bremm A, Brunetti L, Brandts CH, Uckelmann H, Dötsch V, Rogov VV, Bhaskara RM, Müller S. An atypical GABARAP binding module drives the pro-autophagic potential of the AML-associated NPM1c variant. Cell Rep 2023; 42:113484. [PMID: 37999976 DOI: 10.1016/j.celrep.2023.113484] [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] [Received: 03/29/2023] [Revised: 09/22/2023] [Accepted: 11/08/2023] [Indexed: 11/26/2023] Open
Abstract
The nucleolar scaffold protein NPM1 is a multifunctional regulator of cellular homeostasis, genome integrity, and stress response. NPM1 mutations, known as NPM1c variants promoting its aberrant cytoplasmic localization, are the most frequent genetic alterations in acute myeloid leukemia (AML). A hallmark of AML cells is their dependency on elevated autophagic flux. Here, we show that NPM1 and NPM1c induce the autophagy-lysosome pathway by activating the master transcription factor TFEB, thereby coordinating the expression of lysosomal proteins and autophagy regulators. Importantly, both NPM1 and NPM1c bind to autophagy modifiers of the GABARAP subfamily through an atypical binding module preserved within its N terminus. The propensity of NPM1c to induce autophagy depends on this module, likely indicating that NPM1c exerts its pro-autophagic activity by direct engagement with GABARAPL1. Our data report a non-canonical binding mode of GABARAP family members that drives the pro-autophagic potential of NPM1c, potentially enabling therapeutic options.
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Affiliation(s)
- Hannah Mende
- Goethe University Frankfurt, Institute of Biochemistry II, Theodor-Stern-Kai 7, 60590 Frankfurt, Germany
| | - Anshu Khatri
- Goethe University Frankfurt, Institute of Biophysical Chemistry and Center for Biomolecular Magnetic Resonance, Max-von-Laue Street 9, 60438 Frankfurt, Germany
| | - Carolin Lange
- Goethe University Frankfurt, Institute of Biochemistry II, Theodor-Stern-Kai 7, 60590 Frankfurt, Germany; Goethe University Frankfurt, Buchmann Institute for Molecular Life Sciences, Max-von-Laue Street 15, 60438 Frankfurt, Germany
| | - Sergio Alejandro Poveda-Cuevas
- Goethe University Frankfurt, Institute of Biochemistry II, Theodor-Stern-Kai 7, 60590 Frankfurt, Germany; Goethe University Frankfurt, Buchmann Institute for Molecular Life Sciences, Max-von-Laue Street 15, 60438 Frankfurt, Germany
| | - Georg Tascher
- Goethe University Frankfurt, Institute of Biochemistry II, Theodor-Stern-Kai 7, 60590 Frankfurt, Germany
| | - Adriana Covarrubias-Pinto
- Goethe University Frankfurt, Institute of Biochemistry II, Theodor-Stern-Kai 7, 60590 Frankfurt, Germany
| | - Frank Löhr
- Goethe University Frankfurt, Institute of Biophysical Chemistry and Center for Biomolecular Magnetic Resonance, Max-von-Laue Street 9, 60438 Frankfurt, Germany
| | - Sebastian E Koschade
- Goethe University Frankfurt, Institute of Biochemistry II, Theodor-Stern-Kai 7, 60590 Frankfurt, Germany; Goethe University Frankfurt, University Hospital, Department of Medicine, Hematology/Oncology, Theodor-Stern-Kai 7, 60590 Frankfurt, Germany
| | - Ivan Dikic
- Goethe University Frankfurt, Institute of Biochemistry II, Theodor-Stern-Kai 7, 60590 Frankfurt, Germany
| | - Christian Münch
- Goethe University Frankfurt, Institute of Biochemistry II, Theodor-Stern-Kai 7, 60590 Frankfurt, Germany
| | - Anja Bremm
- Goethe University Frankfurt, Institute of Biochemistry II, Theodor-Stern-Kai 7, 60590 Frankfurt, Germany
| | - Lorenzo Brunetti
- Marche Polytechnic University, Department of Clinical and Molecular Sciences, Via Tronto 10, 60020 Ancona, Italy
| | - Christian H Brandts
- Goethe University Frankfurt, University Hospital, Department of Medicine, Hematology/Oncology, Theodor-Stern-Kai 7, 60590 Frankfurt, Germany
| | - Hannah Uckelmann
- Goethe University Frankfurt, University Hospital, Department of Pediatrics, Theodor-Stern-Kai 7, 60590 Frankfurt, Germany
| | - Volker Dötsch
- Goethe University Frankfurt, Institute of Biophysical Chemistry and Center for Biomolecular Magnetic Resonance, Max-von-Laue Street 9, 60438 Frankfurt, Germany
| | - Vladimir V Rogov
- Goethe University Frankfurt, Institute of Pharmaceutical Chemistry, Max-von-Laue Street 15, 60438 Frankfurt, Germany; Goethe University Frankfurt, Structural Genomics Consortium, Buchmann Institute for Molecular Life Sciences, Max-von-Laue Street 15, 60438 Frankfurt, Germany
| | - Ramachandra M Bhaskara
- Goethe University Frankfurt, Institute of Biochemistry II, Theodor-Stern-Kai 7, 60590 Frankfurt, Germany; Goethe University Frankfurt, Buchmann Institute for Molecular Life Sciences, Max-von-Laue Street 15, 60438 Frankfurt, Germany.
| | - Stefan Müller
- Goethe University Frankfurt, Institute of Biochemistry II, Theodor-Stern-Kai 7, 60590 Frankfurt, Germany.
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Juul-Dam KL, Shukla NN, Cooper TM, Cuglievan B, Heidenreich O, Kolb EA, Rasouli M, Hasle H, Zwaan CM. Therapeutic targeting in pediatric acute myeloid leukemia with aberrant HOX/MEIS1 expression. Eur J Med Genet 2023; 66:104869. [PMID: 38174649 DOI: 10.1016/j.ejmg.2023.104869] [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] [Received: 08/31/2022] [Revised: 05/21/2023] [Accepted: 10/22/2023] [Indexed: 01/05/2024]
Abstract
Despite advances in the clinical management of childhood acute myeloid leukemia (AML) during the last decades, outcome remains fatal in approximately one third of patients. Primary chemoresistance, relapse and acute and long-term toxicities to conventional myelosuppressive therapies still constitute significant challenges and emphasize the unmet need for effective targeted therapies. Years of scientific efforts have translated into extensive insights on the heterogeneous spectrum of genetics and oncogenic signaling pathways of AML and identified a subset of patients characterized by upregulation of HOXA and HOXB homeobox genes and myeloid ecotropic virus insertion site 1 (MEIS1). Aberrant HOXA/MEIS1 expression is associated with genotypes such as rearrangements in Histone-lysine N-methyltransferase 2A (KMT2A-r), nucleoporin 98 (NUP98-r) and mutated nucleophosmin (NPM1c) that are found in approximately one third of children with AML. AML with upregulated HOXA/MEIS1 shares a number of molecular vulnerabilities amenable to recently developed molecules targeting the assembly of protein complexes or transcriptional regulators. The interaction between the nuclear scaffold protein menin and KMT2A has gained particular interest and constitutes a molecular dependency for maintenance of the HOXA/MEIS1 transcription program. Menin inhibitors disrupt the menin-KMT2A complex in preclinical models of KMT2A-r, NUP98-r and NPM1c acute leukemias and its occupancy at target genes leading to leukemic cell differentiation and apoptosis. Early-phase clinical trials are either ongoing or in development and preliminary data suggests tolerable toxicities and encouraging efficacy of menin inhibitors in adults with relapsed or refractory KMT2A-r and NPM1c AML. The Pediatric Acute Leukemia/European Pediatric Acute Leukemia (PedAL/EUPAL) project is focused to advance and coordinate informative clinical trials with new agents and constitute an ideal framework for testing of menin inhibitors in pediatric study populations. Menin inhibitors in combination with standard chemotherapy or other targeting agents may enhance anti-leukemic effects and constitute rational treatment strategies for select genotypes of childhood AML, and provide enhanced safety to avoid differentiation syndrome. In this review, we discuss the pathophysiological mechanisms in KMT2A-r, NUP98-r and NPM1c AML, emerging molecules targeting the HOXA/MEIS1 transcription program with menin inhibitors as the most prominent examples and future therapeutic implications of these agents in childhood AML.
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Affiliation(s)
- Kristian L Juul-Dam
- Department of Pediatrics and Adolescent Medicine, Aarhus University Hospital, Aarhus, Denmark.
| | - Neerav N Shukla
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Todd M Cooper
- Division of Hematology/Oncology, Seattle Children's Hospital, University of Washington, Seattle, WA, USA
| | - Branko Cuglievan
- Division of Pediatrics, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Olaf Heidenreich
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands; Wolfson Childhood Cancer Research Centre, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
| | - E Anders Kolb
- Division of Oncology, Nemours/Alfred I. Dupont Hospital for Children, Wilmington, DE, USA
| | - Milad Rasouli
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands; Department of Pediatric Oncology, Erasmus MC-Sophia Children's Hospital, Rotterdam, the Netherlands
| | - Henrik Hasle
- Department of Pediatrics and Adolescent Medicine, Aarhus University Hospital, Aarhus, Denmark
| | - C Michel Zwaan
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands; Department of Pediatric Oncology, Erasmus MC-Sophia Children's Hospital, Rotterdam, the Netherlands
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Liu Y, Zhang L, Chen X, Sun C, Zhang Y, Li Y, Li C. Functional characterization of porcine nucleophosmin (NPM1) gene in promoting the replication of Japanese encephalitis virus and induction of inflammatory cytokines. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2023; 148:104902. [PMID: 37536401 DOI: 10.1016/j.dci.2023.104902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 07/31/2023] [Accepted: 07/31/2023] [Indexed: 08/05/2023]
Abstract
Nucleophosmin (NPM1) is a multifunctional nucleolar protein that plays a role in cell cycle control, tumorigenesis, induction of the inflammatory cytokine, virus replication, as well as the cellular responses to a variety of stress stimuli. However, its physiological functions in pigs have not been well understood. Here, we cloned the porcine NPM1 (porNPM1) gene and analyzed the functions of the porNPM1 protein in pigs. The full-length porNPM1 gene encoded a 294-amino acid protein with 94.5%-99.3% sequence identity to its orthologues in mammals and was extensively expressed in various pig tissues at the mRNA level. The porNPM1 primarily localizes in the nucleus of ST cells, while it translocates from the nucleus to nucleoplasm upon UV irradiation or H2O2 treatment. Notably, JEV infection blocked the translocation of porNPM1 from the nucleolus to the nucleoplasm. Furthermore, porNPM1 interacted with the JEV C protein and facilitated JEV replication in ST cells. The overexpression and knockdown of porNPM1 respectively enhanced or impaired JEV replication, suggesting the important role of porNPM1 in JEV replication. Additionally, the purified ectodomain of porNPM1 induced the production of inflammatory cytokines (TNF-α, IL-6, and IL-8). Together, these data demonstrated that porNPM1 is involved in cellular stress stimuli, JEV replication, and induction of inflammatory cytokines.
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Affiliation(s)
- Ying Liu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, Jiangsu, China
| | - Linjie Zhang
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, Jiangsu, China
| | - Xuan Chen
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, Jiangsu, China
| | - Chuwen Sun
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, Jiangsu, China
| | - Yanbing Zhang
- College of Animal Science and Technology, Shihezi University, Shihezi, 832003, China
| | - Yanhua Li
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, Jiangsu, China; Comparative Medicine Research Institute, Yangzhou University, Yangzhou, 225009, Jiangsu, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009, Jiangsu, China.
| | - Chenxi Li
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, Jiangsu, China; Comparative Medicine Research Institute, Yangzhou University, Yangzhou, 225009, Jiangsu, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009, Jiangsu, China.
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Kaseb H, Visconte V, Socha DS, Crane GM, Durkin L, Cook JR, Maciejewski JP, Hsi ED, Rogers HJ. The clinicopathologic significance of NPM1 mutation and ability to detect mutated NPM1 by immunohistochemistry in non-AML myeloid neoplasms. Genes Chromosomes Cancer 2023; 62:573-580. [PMID: 36959701 PMCID: PMC11104021 DOI: 10.1002/gcc.23139] [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: 12/02/2022] [Revised: 03/15/2023] [Accepted: 03/16/2023] [Indexed: 03/25/2023] Open
Abstract
NPM1 mutated non-AML myeloid neoplasms (MN; <20% blasts) are characterized by an aggressive clinical course in a few studies. In this retrospective study, we evaluate the clinicopathologic and immunohistochemical features of non-AML MN patients with NPM1 mutations. We assessed NPM1 mutation by targeted next generation sequencing (NGS). Cytoplasmic NPM1 expression was assessed by immunohistochemistry (IHC) on formalin-fixed, formic acid-decalcified bone marrow biopsy specimens. We evaluated 34 non-AML MN patients with NPM1 mutations comprising MDS (22), MPN (3) and MDS/MPN (9). They commonly presented with anemia (88%), thrombocytopenia (58%) and leukopenia (50%). Bone marrow dysplasia was common (79%). The karyotype was often normal (64%). NGS for MN-associated mutations performed in a subset of the patients showed a median of 3 mutations. NPM1 mutations were more often missense (c.859C > T p. L287F; 65%) than frameshift insertion/duplication (35%) with median variant allele frequency (VAF; 9.7%, range 5.1%-49.8%). Mutated NPM1 by IHC showed cytoplasmic positivity in 48% and positivity was associated with higher VAF. The median overall survival (OS) in this cohort was 70 months. Nine patients (26%) progressed to AML. OS in patients who progressed to AML was significantly shorter than the one of patients without progression to AML (OS 20 vs. 128 months, respectively, log rank p = 0.05). NPM1 mutated non-AML MN patients commonly had cytopenias, dysplasia, normal karyotype, mutations in multiple genes, and an unfavorable clinical outcome, including progression to AML. Our data demonstrated that IHC for NPM1 can be a useful supplementary tool to predict NPM1 mutation in some non-AML MN; however, genetic testing cannot be replaced by IHC assessment.
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Affiliation(s)
- Hatem Kaseb
- Department of Pathology, University of Central Florida College of Medicine, Orlando, Florida, USA
| | - Valeria Visconte
- Department of Translational Hematology and Oncology, Taussig Cancer Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Daniel S. Socha
- Department of Pathology, OhioHealth, Riverside Methodist Hospital, Columbus, Ohio, USA
| | - Genevieve M. Crane
- Department of Laboratory Medicine, Robert J. Tomsich Pathology and Laboratory Medicine Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Lisa Durkin
- Department of Laboratory Medicine, Robert J. Tomsich Pathology and Laboratory Medicine Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - James R. Cook
- Department of Laboratory Medicine, Robert J. Tomsich Pathology and Laboratory Medicine Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Jaroslaw P. Maciejewski
- Department of Translational Hematology and Oncology, Taussig Cancer Institute, Cleveland Clinic, Cleveland, Ohio, USA
- Department of Hematologic Oncology and Blood Disorders, Taussig Cancer Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Eric D. Hsi
- Department of Pathology and Laboratory Medicine, Wake Forest School of Medicine, Wake Forest Baptist Health, Winston-Salem, North Carolina, USA
| | - Heesun J. Rogers
- Department of Laboratory Medicine, Robert J. Tomsich Pathology and Laboratory Medicine Institute, Cleveland Clinic, Cleveland, Ohio, USA
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Pradeep P, Sivakumar KC, Sreekumar E. Host Factor Nucleophosmin 1 (NPM1/B23) Exerts Antiviral Effects against Chikungunya Virus by Its Interaction with Viral Nonstructural Protein 3. Microbiol Spectr 2023; 11:e0537122. [PMID: 37409962 PMCID: PMC10433958 DOI: 10.1128/spectrum.05371-22] [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: 01/05/2023] [Accepted: 06/13/2023] [Indexed: 07/07/2023] Open
Abstract
Chikungunya virus (CHIKV) hijacks host cell machinery to support its replication. Nucleophosmin 1 (NPM1/B23), a nucleolar phosphoprotein, is one of the host proteins known to restrict CHIKV infection; however, the mechanistic details of the antiviral role of NPM1 are not elucidated. It was seen in our experiments that the level of NPM1 expression affected the expression levels of interferon-stimulated genes (ISGs) that play antiviral roles in CHIKV infection, such as IRF1, IRF7, OAS3, and IFIT1, indicating that one of the antiviral mechanisms could be through modulation of interferon-mediated pathways. Our experiments also identified that for CHIKV restriction, NPM1 must move from the nucleus to the cytoplasm. A deletion of the nuclear export signal (NES), which confines NPM1 within the nucleus, abolishes its anti-CHIKV action. We observed that NPM1 binds CHIKV nonstructural protein 3 (nsP3) strongly via its macrodomain, thereby exerting a direct interaction with viral proteins to limit infection. Based on site-directed mutagenesis and coimmunoprecipitation studies, it was also observed that amino acid residues N24 and Y114 of the CHIKV nsP3 macrodomain, known to be involved in virus virulence, bind ADP-ribosylated NPM1 to inhibit infection. Overall, the results show a key role of NPM1 in CHIKV restriction and indicate it as a promising host target for developing antiviral strategies against CHIKV. IMPORTANCE Chikungunya, a recently reemerged mosquito-borne infection caused by a positive-sense, single-stranded RNA virus, has caused explosive epidemics in tropical regions. Unlike the classical symptoms of acute fever and debilitating arthralgia, incidences of neurological complications and mortality were reported. Currently there are no antivirals or commercial vaccines available against chikungunya. Like all viruses, CHIKV uses host cellular machinery for establishment of infection and successful replication. To counter this, the host cell activates several restriction factors and innate immune response mediators. Understanding these host-virus interactions helps to develop host-targeted antivirals against the disease. Here, we report the antiviral role of the multifunctional host protein NPM1 against CHIKV. The significant inhibitory effect of this protein against CHIKV involves its increased expression and movement from its natural location within the nucleus to the cytoplasm. There, it interacts with functional domains of key viral proteins. Our results support ongoing efforts toward development of host-directed antivirals against CHIKV and other alphaviruses.
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Affiliation(s)
- Parvanendhu Pradeep
- Molecular Virology Laboratory, Rajiv Gandhi Centre for Biotechnology (RGCB), Thiruvananthapuram, India
- Research Centre, University of Kerala, Thiruvananthapuram, India
| | | | - Easwaran Sreekumar
- Molecular Virology Laboratory, Rajiv Gandhi Centre for Biotechnology (RGCB), Thiruvananthapuram, India
- Molecular Bioassay Laboratory, Institute of Advanced Virology (IAV), Thiruvananthapuram, India
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NPM 1 Mutations in AML-The Landscape in 2023. Cancers (Basel) 2023; 15:cancers15041177. [PMID: 36831522 PMCID: PMC9954410 DOI: 10.3390/cancers15041177] [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: 01/16/2023] [Revised: 02/04/2023] [Accepted: 02/07/2023] [Indexed: 02/15/2023] Open
Abstract
Acute myeloid leukemia (AML) represents 80% of acute leukemia in adults and is characterized by clonal expansion of hematopoietic stem cells secondary to genomic mutations, rendering a selective growth advantage to the mutant clones. NPM1mut is found in around 30% of AML and clinically presents with leukocytosis, high blast percentage and extramedullary involvement. Considered as a "gate-keeper" mutation, NPM1mut appears to be a "first hit" in the process of leukemogenesis and development of overt leukemia. Commonly associated with other mutations (e.g., FLT 3, DNMT3A, TET2, SF3B1), NPM1 mutation in AML has an important role in diagnosis, prognosis, treatment and post-treatment monitoring. Several novel therapies targeting NPM1 are being developed in various clinical phases with demonstration of efficacy. In this review, we summarize the pathophysiology of the NPM1 gene mutation in AML, clinical implications and the novel targeted therapies to date.
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Saluri M, Leppert A, Gese GV, Sahin C, Lama D, Kaldmäe M, Chen G, Elofsson A, Allison TM, Arsenian-Henriksson M, Johansson J, Lane DP, Hällberg BM, Landreh M. A "grappling hook" interaction connects self-assembly and chaperone activity of Nucleophosmin 1. PNAS NEXUS 2023; 2:pgac303. [PMID: 36743470 PMCID: PMC9896144 DOI: 10.1093/pnasnexus/pgac303] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Accepted: 01/05/2023] [Indexed: 01/11/2023]
Abstract
How the self-assembly of partially disordered proteins generates functional compartments in the cytoplasm and particularly in the nucleus is poorly understood. Nucleophosmin 1 (NPM1) is an abundant nucleolar protein that forms large oligomers and undergoes liquid-liquid phase separation by binding RNA or ribosomal proteins. It provides the scaffold for ribosome assembly but also prevents protein aggregation as part of the cellular stress response. Here, we use aggregation assays and native mass spectrometry (MS) to examine the relationship between the self-assembly and chaperone activity of NPM1. We find that oligomerization of full-length NPM1 modulates its ability to retard amyloid formation in vitro. Machine learning-based structure prediction and cryo-electron microscopy reveal fuzzy interactions between the acidic disordered region and the C-terminal nucleotide-binding domain, which cross-link NPM1 pentamers into partially disordered oligomers. The addition of basic peptides results in a tighter association within the oligomers, reducing their capacity to prevent amyloid formation. Together, our findings show that NPM1 uses a "grappling hook" mechanism to form a network-like structure that traps aggregation-prone proteins. Nucleolar proteins and RNAs simultaneously modulate the association strength and chaperone activity, suggesting a mechanism by which nucleolar composition regulates the chaperone activity of NPM1.
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Affiliation(s)
- Mihkel Saluri
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet – Biomedicum, Solnavägen 9, 171 65 Solna, Stockholm, Sweden
| | | | | | - Cagla Sahin
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet – Biomedicum, Solnavägen 9, 171 65 Solna, Stockholm, Sweden,Structural Biology and NMR laboratory and the Linderstrøm-Lang Centre for Protein Science, Department of Biology, University of Copenhagen, Ole Maaløes vej 5, 2200 Copenhagen, Denmark
| | - Dilraj Lama
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet – Biomedicum, Solnavägen 9, 171 65 Solna, Stockholm, Sweden
| | - Margit Kaldmäe
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet – Biomedicum, Solnavägen 9, 171 65 Solna, Stockholm, Sweden
| | - Gefei Chen
- Department of Biosciences and Nutrition, Karolinska Institutet, 141 57 Huddinge,, Sweden
| | - Arne Elofsson
- Science for Life Laboratory and Department of Biochemistry and Biophysics, Stockholm University, 114 19 Stockholm, Sweden
| | - Timothy M Allison
- Biomolecular Interaction Centre, School of Physical and Chemical Sciences, University of Canterbury, Upper Riccarton, Christchurch 8041, New Zealand
| | - Marie Arsenian-Henriksson
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet – Biomedicum, Solnavägen 9, 171 65 Solna, Stockholm, Sweden
| | - Jan Johansson
- Department of Biosciences and Nutrition, Karolinska Institutet, 141 57 Huddinge,, Sweden
| | - David P Lane
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet – Biomedicum, Solnavägen 9, 171 65 Solna, Stockholm, Sweden
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Sakthivel D, Brown-Suedel A, Bouchier-Hayes L. The role of the nucleolus in regulating the cell cycle and the DNA damage response. ADVANCES IN PROTEIN CHEMISTRY AND STRUCTURAL BIOLOGY 2023; 135:203-241. [PMID: 37061332 DOI: 10.1016/bs.apcsb.2023.01.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
The nucleolus has long been perceived as the site for ribosome biogenesis, but numerous studies suggest that the nucleolus carefully sequesters crucial proteins involved in multiple cellular functions. Among these, the role of nucleolus in cell cycle regulation is the most evident. The nucleolus is the first responder of growth-related signals to mediate normal cell cycle progression. The nucleolus also senses different cellular stress insults by activating diverse pathways that arrest the cell cycle, promote DNA repair, or initiate apoptosis. Here, we review the emerging concepts on how the ribosomal and nonribosomal nucleolar proteins mediate such cellular effects.
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10
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Nucleus-translocated mitochondrial cytochrome c liberates nucleophosmin-sequestered ARF tumor suppressor by changing nucleolar liquid–liquid phase separation. Nat Struct Mol Biol 2022; 29:1024-1036. [DOI: 10.1038/s41594-022-00842-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 08/30/2022] [Indexed: 11/07/2022]
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11
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Wang R, Xu P, Chang LL, Zhang SZ, Zhu HH. Targeted therapy in NPM1-mutated AML: Knowns and unknowns. Front Oncol 2022; 12:972606. [PMID: 36237321 PMCID: PMC9552319 DOI: 10.3389/fonc.2022.972606] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Accepted: 09/13/2022] [Indexed: 12/02/2022] Open
Abstract
Acute myeloid leukemia (AML) is a heterogeneous disease characterized by malignant proliferation of myeloid hematopoietic stem/progenitor cells. NPM1 represents the most frequently mutated gene in AML and approximately 30% of AML cases carry NPM1 mutations. Mutated NPM1 result in the cytoplasmic localization of NPM1 (NPM1c). NPM1c interacts with other proteins to block myeloid differentiation, promote cell proliferation and impair DNA damage repair. NPM1 is a good prognostic marker, but some patients ultimately relapse or fail to respond to therapy. It is urgent for us to find optimal therapies for NPM1-mutated AML. Efficacy of multiple drugs is under investigation in NPM1-mutated AML, and several clinical trials have been registered. In this review, we summarize the present knowledge of therapy and focus on the possible therapeutic interventions for NPM1-mutated AML.
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Affiliation(s)
- Rong Wang
- Department of Hematology, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Zhejiang Province Key Laboratory of Hematology Oncology Diagnosis and Treatment, Hangzhou, China
| | - Pan Xu
- Department of Physiology, Medical College of China Three Gorges University, Yichang, China
| | - Lin-Lin Chang
- Department of Physiology, Medical College of China Three Gorges University, Yichang, China
| | - Shi-Zhong Zhang
- Department of Physiology, Medical College of China Three Gorges University, Yichang, China
- *Correspondence: Hong-Hu Zhu, ; Shi-Zhong Zhang,
| | - Hong-Hu Zhu
- Department of Hematology, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Zhejiang Province Key Laboratory of Hematology Oncology Diagnosis and Treatment, Hangzhou, China
- Department of Physiology, Medical College of China Three Gorges University, Yichang, China
- Zhejiang University Cancer Center, Hangzhou, China
- Zhejiang Laboratory for Systems & Precision Medicine, Zhejiang University Medical Center, Hangzhou, China
- Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, China
- *Correspondence: Hong-Hu Zhu, ; Shi-Zhong Zhang,
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12
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Kapitonova AA, Tugaeva KV, Varfolomeeva LA, Boyko KM, Cooley RB, Sluchanko NN. Structural basis for the recognition by 14-3-3 proteins of a conditional binding site within the oligomerization domain of human nucleophosmin. Biochem Biophys Res Commun 2022; 627:176-183. [PMID: 36041327 DOI: 10.1016/j.bbrc.2022.08.047] [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] [Received: 08/10/2022] [Accepted: 08/17/2022] [Indexed: 11/18/2022]
Abstract
Nucleophosmin 1 (NPM1) is a multifunctional protein regulating ribosome biogenesis, centrosome duplication and chromatin remodeling. Being a major nucleolar protein, NPM1 can migrate to the nucleus and the cytoplasm, which is controlled by changes of NPM1 oligomerization and interaction with other cell factors. NPM1 forms a stable pentamer with its N-terminal structured domain, where two nuclear export signals and several phosphorylation sites reside. This domain undergoes dissociation and disordering upon Ser48 phosphorylation in the subunit interface. Recent studies indicated that Ser48 is important for NPM1 interaction with other proteins including 14-3-3, the well-known phosphoserine/phosphothreonine binders, but the structural basis for 14-3-3/NPM1 interaction remained unaddressed. By fusing human 14-3-3ζ with an NPM1 segment surrounding Ser48, which was phosphorylated inside Escherichia coli cells by co-expressed protein kinase A, here we obtained the desired protein/phosphopeptide complex and determined its crystal structure. While biochemical data indicated that the interaction is driven by Ser48 phosphorylation, the crystallographic 14-3-3/phosphopeptide interface reveals an NPM1 conformation distinctly different from that in the NPM1 pentamer. Given the canonical phosphopeptide-binding mode observed in our crystal structure, Ser48 emerges as a conditional binding site whose recognition by 14-3-3 proteins is enabled by NPM1 phosphorylation, disassembly and disordering under physiological circumstances.
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Affiliation(s)
- Anna A Kapitonova
- A.N. Bach Institute of Biochemistry, Federal Research Center of Biotechnology of the Russian Academy of Sciences, 119071, Moscow, Russia
| | - Kristina V Tugaeva
- A.N. Bach Institute of Biochemistry, Federal Research Center of Biotechnology of the Russian Academy of Sciences, 119071, Moscow, Russia
| | - Larisa A Varfolomeeva
- A.N. Bach Institute of Biochemistry, Federal Research Center of Biotechnology of the Russian Academy of Sciences, 119071, Moscow, Russia
| | - Konstantin M Boyko
- A.N. Bach Institute of Biochemistry, Federal Research Center of Biotechnology of the Russian Academy of Sciences, 119071, Moscow, Russia
| | - Richard B Cooley
- Department of Biochemistry and Biophysics, Oregon State University, Corvallis, OR, 97331, USA
| | - Nikolai N Sluchanko
- A.N. Bach Institute of Biochemistry, Federal Research Center of Biotechnology of the Russian Academy of Sciences, 119071, Moscow, Russia.
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13
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Temaj G, Saha S, Dragusha S, Ejupi V, Buttari B, Profumo E, Beqa L, Saso L. Ribosomopathies and cancer: pharmacological implications. Expert Rev Clin Pharmacol 2022; 15:729-746. [PMID: 35787725 DOI: 10.1080/17512433.2022.2098110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
INTRODUCTION The ribosome is a ribonucleoprotein organelle responsible for protein synthesis, and its biogenesis is a highly coordinated process that involves many macromolecular components. Any acquired or inherited impairment in ribosome biogenesis or ribosomopathies is associated with the development of different cancers and rare genetic diseases. Interference with multiple steps of protein synthesis has been shown to promote tumor cell death. AREAS COVERED We discuss the current insights about impaired ribosome biogenesis and their secondary consequences on protein synthesis, transcriptional and translational responses, proteotoxic stress, and other metabolic pathways associated with cancer and rare diseases. Studies investigating the modulation of different therapeutic chemical entities targeting cancer in in vitro and in vivo models have also been detailed. EXPERT OPINION Despite the association between inherited mutations affecting ribosome biogenesis and cancer biology, the development of therapeutics targeting the essential cellular machinery has only started to emerge. New chemical entities should be designed to modulate different checkpoints (translating oncoproteins, dysregulation of specific ribosome-assembly machinery, ribosomal stress, and rewiring ribosomal functions). Although safe and effective therapies are lacking, consideration should also be given to using existing drugs alone or in combination for long-term safety, with known risks for feasibility in clinical trials and synergistic effects.
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Affiliation(s)
| | - Sarmistha Saha
- Department of Cardiovascular, Endocrine-metabolic Diseases, and Aging, Italian National Institute of Health, Rome, Italy
| | | | - Valon Ejupi
- College UBT, Faculty of Pharmacy, Prishtina, Kosovo
| | - Brigitta Buttari
- Department of Cardiovascular, Endocrine-metabolic Diseases, and Aging, Italian National Institute of Health, Rome, Italy
| | - Elisabetta Profumo
- Department of Cardiovascular, Endocrine-metabolic Diseases, and Aging, Italian National Institute of Health, Rome, Italy
| | - Lule Beqa
- College UBT, Faculty of Pharmacy, Prishtina, Kosovo
| | - Luciano Saso
- Department of Physiology and Pharmacology "Vittorio Erspamer", Sapienza University of Rome, Italy
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14
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Matsumori H, Watanabe K, Tachiwana H, Fujita T, Ito Y, Tokunaga M, Sakata-Sogawa K, Osakada H, Haraguchi T, Awazu A, Ochiai H, Sakata Y, Ochiai K, Toki T, Ito E, Goldberg IG, Tokunaga K, Nakao M, Saitoh N. Ribosomal protein L5 facilitates rDNA-bundled condensate and nucleolar assembly. Life Sci Alliance 2022; 5:5/7/e202101045. [PMID: 35321919 PMCID: PMC8942980 DOI: 10.26508/lsa.202101045] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 03/01/2022] [Accepted: 03/02/2022] [Indexed: 11/24/2022] Open
Abstract
High content image analysis, single molecule tracking, modeling, and DBA patient analysis revealed that ribosomal protein L5 facilitates rDNA-bundled condensate and nucleolar assembly. The nucleolus is the site of ribosome assembly and formed through liquid–liquid phase separation. Multiple ribosomal DNA (rDNA) arrays are bundled in the nucleolus, but the underlying mechanism and significance are unknown. In the present study, we performed high-content screening followed by image profiling with the wndchrm machine learning algorithm. We revealed that cells lacking a specific 60S ribosomal protein set exhibited common nucleolar disintegration. The depletion of RPL5 (also known as uL18), the liquid–liquid phase separation facilitator, was most effective, and resulted in an enlarged and un-separated sub-nucleolar compartment. Single-molecule tracking analysis revealed less-constrained mobility of its components. rDNA arrays were also unbundled. These results were recapitulated by a coarse-grained molecular dynamics model. Transcription and processing of ribosomal RNA were repressed in these aberrant nucleoli. Consistently, the nucleoli were disordered in peripheral blood cells from a Diamond–Blackfan anemia patient harboring a heterozygous, large deletion in RPL5. Our combinatorial analyses newly define the role of RPL5 in rDNA array bundling and the biophysical properties of the nucleolus, which may contribute to the etiology of ribosomopathy.
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Affiliation(s)
- Haruka Matsumori
- Department of Medical Cell Biology, Institute of Molecular Embryology and Genetics, Kumamoto University, Kumamoto, Japan
| | - Kenji Watanabe
- Cancer Institute of Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Hiroaki Tachiwana
- Cancer Institute of Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Tomoko Fujita
- Cancer Institute of Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Yuma Ito
- School of Life Science and Technology, Tokyo Institute of Technology, Yokohama, Japan
| | - Makio Tokunaga
- School of Life Science and Technology, Tokyo Institute of Technology, Yokohama, Japan
| | - Kumiko Sakata-Sogawa
- School of Life Science and Technology, Tokyo Institute of Technology, Yokohama, Japan
| | - Hiroko Osakada
- Advanced ICT Research Institute Kobe, National Institute of Information and Communications Technology, Kobe, Japan
| | - Tokuko Haraguchi
- Advanced ICT Research Institute Kobe, National Institute of Information and Communications Technology, Kobe, Japan.,Graduate School of Frontier Biosciences, Osaka University, Osaka, Japan
| | - Akinori Awazu
- Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima, Japan.,Research Center for the Mathematics on Chromatin Live Dynamics (RcMcD), Hiroshima University, Higashi-Hiroshima, Japan
| | - Hiroshi Ochiai
- Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima, Japan
| | - Yuka Sakata
- Cancer Institute of Japanese Foundation for Cancer Research, Tokyo, Japan
| | | | - Tsutomu Toki
- Department of Pediatrics, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Etsuro Ito
- Department of Pediatrics, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Ilya G Goldberg
- Image Informatics and Computational Biology Unit, Laboratory of Genetics, National Institute on Aging, National Institutes of Health, Baltimore, MD, USA
| | - Kazuaki Tokunaga
- Department of Medical Cell Biology, Institute of Molecular Embryology and Genetics, Kumamoto University, Kumamoto, Japan
| | - Mitsuyoshi Nakao
- Department of Medical Cell Biology, Institute of Molecular Embryology and Genetics, Kumamoto University, Kumamoto, Japan
| | - Noriko Saitoh
- Cancer Institute of Japanese Foundation for Cancer Research, Tokyo, Japan
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15
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Tao KP, Chong MK, Chan KY, Pun JC, Tsun JG, Chow SM, Ng CS, Wang MH, Chan PK, Li AM, Chan RW. Suppression of influenza virus infection by rhinovirus interference – at the population, individual and cellular levels. CURRENT RESEARCH IN MICROBIAL SCIENCES 2022; 3:100147. [PMID: 35909608 PMCID: PMC9325905 DOI: 10.1016/j.crmicr.2022.100147] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Affiliation(s)
- Kin P. Tao
- Department of Paediatrics, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
- CUHK-UMCU Joint Research Laboratory of Respiratory Virus & Immunobiology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
- Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong SAR, China
- Laboratory for Paediatric Respiratory Research, Li Ka Shing Institute of Health Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Marc K.C. Chong
- Jockey Club School of Public Health and Primary Care, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Kathy Y.Y. Chan
- Department of Paediatrics, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Jason C.S. Pun
- Department of Paediatrics, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
- CUHK-UMCU Joint Research Laboratory of Respiratory Virus & Immunobiology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
- Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong SAR, China
- Laboratory for Paediatric Respiratory Research, Li Ka Shing Institute of Health Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Joseph G.S. Tsun
- Department of Paediatrics, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
- CUHK-UMCU Joint Research Laboratory of Respiratory Virus & Immunobiology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
- Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong SAR, China
- Laboratory for Paediatric Respiratory Research, Li Ka Shing Institute of Health Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Samuel M.W. Chow
- Department of Otorhinolaryngology, Head and Neck Surgery, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Calvin S.H. Ng
- Division of Cardiothoracic Surgery, Department of Surgery, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Maggie H.T. Wang
- Jockey Club School of Public Health and Primary Care, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Paul K.S. Chan
- Department of Microbiology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Albert M. Li
- Department of Paediatrics, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
- CUHK-UMCU Joint Research Laboratory of Respiratory Virus & Immunobiology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
- Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong SAR, China
- Laboratory for Paediatric Respiratory Research, Li Ka Shing Institute of Health Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Renee W.Y. Chan
- Department of Paediatrics, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
- CUHK-UMCU Joint Research Laboratory of Respiratory Virus & Immunobiology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
- Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong SAR, China
- Laboratory for Paediatric Respiratory Research, Li Ka Shing Institute of Health Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
- Corresponding author at: Department of Paediatrics, 6/F, Lui Chee Woo Clinical Sciences Building, Prince of Wales Hospital, New Territories, Hong Kong SAR, China.
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16
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Cruz J, Lemos B. Post-transcriptional diversity in riboproteins and RNAs in aging and cancer. Semin Cancer Biol 2021; 76:292-300. [PMID: 34474152 PMCID: PMC8627441 DOI: 10.1016/j.semcancer.2021.08.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2021] [Revised: 08/28/2021] [Accepted: 08/29/2021] [Indexed: 12/19/2022]
Abstract
Post-transcriptional (PtscM) and post-translational (PtrnM) modifications of nucleotides and amino acids are covalent modifications able to change physio-chemical properties of RNAs and proteins. In the ribosome, the adequate assembly of rRNAs and ribosomal protein subunits in the nucleolus ensures suitable translational activity, with protein synthesis tuned according to intracellular demands of energy production, replication, proliferation, and growth. Disruption in the regulatory control of PtscM and PtrnM can impair ribosome biogenesis and ribosome function. Ribosomal impairment may, in turn, impact the synthesis of proteins engaged in functions as varied as telomere maintenance, apoptosis, and DNA repair, as well as intersect with mitochondria and telomerase activity. These cellular processes often malfunction in carcinogenesis and senescence. Here we discuss regulatory mechanisms of PtscMs and PtrnMs on ribosomal function. We also address chemical modification in rRNAs and their impacts on cellular metabolism, replication control, and senescence. Further, we highlight similarities and differences of PtscMs and PtrnMs in ribosomal intermediates during aging and carcinogenesis. Understanding these regulatory mechanisms may uncover critical steps for the development of more efficient oncologic and anti-aging therapies.
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Affiliation(s)
- Jurandir Cruz
- Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, MA 02115, USA; Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP 01246, Brazil
| | - Bernardo Lemos
- Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, MA 02115, USA; Broad Institute of Harvard and MIT, Cambridge, MA 02142, USA.
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17
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Hindley A, Catherwood MA, McMullin MF, Mills KI. Significance of NPM1 Gene Mutations in AML. Int J Mol Sci 2021; 22:ijms221810040. [PMID: 34576201 PMCID: PMC8467861 DOI: 10.3390/ijms221810040] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 09/03/2021] [Accepted: 09/14/2021] [Indexed: 12/16/2022] Open
Abstract
The aim of this literature review is to examine the significance of the nucleophosmin 1 (NPM1) gene in acute myeloid leukaemia (AML). This will include analysis of the structure and normal cellular function of NPM1, the type of mutations commonly witnessed in NPM1, and the mechanism by which this influences the development and progression of AML. The importance of NPM1 mutation on prognosis and the treatment options available to patients will also be reviewed along with current guidelines recommending the rapid return of NPM1 mutational screening results and the importance of employing a suitable laboratory assay to achieve this. Finally, future developments in the field including research into new therapies targeting NPM1 mutated AML are considered.
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Affiliation(s)
- Andrew Hindley
- Clinical Haematology, Belfast City Hospital, Belfast BT9 7AB, UK;
- Correspondence:
| | | | - Mary Frances McMullin
- Centre for Medical Education, Queen’s University Belfast, Belfast BT7 1NN, UK;
- Northern Ireland and Belfast Health and Social Care Trust, Belfast BT9 7AB, UK
| | - Ken I. Mills
- Patrick G Johnston Center for Cancer Research, Queens University Belfast, Belfast BT9 7AE, UK;
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18
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Luo W, Li J, Li Z, Lin T, Zhang L, Yang W, Mai Y, Liu R, Chen M, Dai C, Yang H, Lu J, Li H, Guan G, Huang M, Liu P, Li Z. HO-1 nuclear accumulation and interaction with NPM1 protect against stress-induced endothelial senescence independent of its enzymatic activity. Cell Death Dis 2021; 12:738. [PMID: 34312365 PMCID: PMC8313700 DOI: 10.1038/s41419-021-04035-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 07/13/2021] [Accepted: 07/14/2021] [Indexed: 02/07/2023]
Abstract
Heme oxygenase-1 (HO-1) has attracted accumulating attention for its antioxidant enzymatic activity. However, the exact regulatory role of its non-enzymatic activity in the cardiovascular system remains unaddressed. Here, we show that HO-1 was accumulated in the nuclei of stress-induced senescent endothelial cells, and conferred protection against endothelial senescence independent of its enzymatic activity. Overexpression of ΔHO-1, a truncated HO-1 without transmembrane segment (TMS), inhibited H2O2-induced endothelial senescence. Overexpression of ΔHO-1H25A, the catalytically inactive form of ΔHO-1, also exhibited anti-senescent effect. In addition, infection of recombinant adenovirus encoding ΔHO-1 with three nuclear localization sequences (NLS), alleviated endothelial senescence induced by knockdown of endogenous HO-1 by CRISPR/Cas9. Moreover, repression of HO-1 nuclear translocation by silencing of signal peptide peptidase (SPP), which is responsible for enzymatic cleavage of the TMS of HO-1, exacerbated endothelial senescence. Mechanistically, nuclear HO-1 interacted with NPM1 N-terminal portion, prevented NPM1 translocation from nucleolus to nucleoplasm, thus disrupted NPM1/p53/MDM2 interactions and inhibited p53 activation by NPM1, finally resisted endothelial senescence. This study provides a novel understanding of HO-1 as a promising therapeutic strategy for vascular senescence-related cardiovascular diseases.
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Affiliation(s)
- Wenwei Luo
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences, National and Local United Engineering Lab of Druggability and New Drugs Evaluation, Guangdong Engineering Laboratory of Druggability and New Drug Evaluation, Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, Sun Yat-sen University, Guangzhou, China
| | - Jingyan Li
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences, National and Local United Engineering Lab of Druggability and New Drugs Evaluation, Guangdong Engineering Laboratory of Druggability and New Drug Evaluation, Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, Sun Yat-sen University, Guangzhou, China
- International Institute for Translational Chinese Medicine, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Ziqing Li
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences, National and Local United Engineering Lab of Druggability and New Drugs Evaluation, Guangdong Engineering Laboratory of Druggability and New Drug Evaluation, Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, Sun Yat-sen University, Guangzhou, China
| | - Tong Lin
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences, National and Local United Engineering Lab of Druggability and New Drugs Evaluation, Guangdong Engineering Laboratory of Druggability and New Drug Evaluation, Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, Sun Yat-sen University, Guangzhou, China
| | - Lili Zhang
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences, National and Local United Engineering Lab of Druggability and New Drugs Evaluation, Guangdong Engineering Laboratory of Druggability and New Drug Evaluation, Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, Sun Yat-sen University, Guangzhou, China
| | - Wanqi Yang
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences, National and Local United Engineering Lab of Druggability and New Drugs Evaluation, Guangdong Engineering Laboratory of Druggability and New Drug Evaluation, Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, Sun Yat-sen University, Guangzhou, China
| | - Yanqi Mai
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences, National and Local United Engineering Lab of Druggability and New Drugs Evaluation, Guangdong Engineering Laboratory of Druggability and New Drug Evaluation, Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, Sun Yat-sen University, Guangzhou, China
| | - Ruiming Liu
- Department of Vascular and Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Meiting Chen
- Emergency Department, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Chunmei Dai
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences, National and Local United Engineering Lab of Druggability and New Drugs Evaluation, Guangdong Engineering Laboratory of Druggability and New Drug Evaluation, Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, Sun Yat-sen University, Guangzhou, China
| | - Hanwei Yang
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences, National and Local United Engineering Lab of Druggability and New Drugs Evaluation, Guangdong Engineering Laboratory of Druggability and New Drug Evaluation, Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, Sun Yat-sen University, Guangzhou, China
| | - Jing Lu
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences, National and Local United Engineering Lab of Druggability and New Drugs Evaluation, Guangdong Engineering Laboratory of Druggability and New Drug Evaluation, Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, Sun Yat-sen University, Guangzhou, China
| | - Hong Li
- Department of Biochemistry and Molecular Biology, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Guimei Guan
- Department of Obstetrics and Gynecology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Min Huang
- Institute of Clinical Pharmacology and Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, China
| | - Peiqing Liu
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences, National and Local United Engineering Lab of Druggability and New Drugs Evaluation, Guangdong Engineering Laboratory of Druggability and New Drug Evaluation, Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, Sun Yat-sen University, Guangzhou, China.
| | - Zhuoming Li
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences, National and Local United Engineering Lab of Druggability and New Drugs Evaluation, Guangdong Engineering Laboratory of Druggability and New Drug Evaluation, Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, Sun Yat-sen University, Guangzhou, China.
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19
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Mutual dependency between lncRNA LETN and protein NPM1 in controlling the nucleolar structure and functions sustaining cell proliferation. Cell Res 2021; 31:664-683. [PMID: 33432115 PMCID: PMC8169757 DOI: 10.1038/s41422-020-00458-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Accepted: 11/30/2020] [Indexed: 02/06/2023] Open
Abstract
Fundamental processes such as ribosomal RNA synthesis and chromatin remodeling take place in the nucleolus, which is hyperactive in fast-proliferating cells. The sophisticated regulatory mechanism underlying the dynamic nucleolar structure and functions is yet to be fully explored. The present study uncovers the mutual functional dependency between a previously uncharacterized human long non-coding RNA, which we renamed LETN, and a key nucleolar protein, NPM1. Specifically, being upregulated in multiple types of cancer, LETN resides in the nucleolus via direct binding with NPM1. LETN plays a critical role in facilitating the formation of NPM1 pentamers, which are essential building blocks of the nucleolar granular component and control the nucleolar functions. Repression of LETN or NPM1 led to similar and profound changes of the nucleolar morphology and arrest of the nucleolar functions, which led to proliferation inhibition of human cancer cells and neural progenitor cells. Interestingly, this inter-dependency between LETN and NPM1 is associated with the evolutionarily new variations of NPM1 and the coincidental emergence of LETN in higher primates. We propose that this human-specific protein-lncRNA axis renders an additional yet critical layer of regulation with high physiological relevance in both cancerous and normal developmental processes that require hyperactive nucleoli.
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20
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Duan X, Chen Y, Feng L, Zhou Q. Metagenomic analysis reveals nonylphenol-shaped acidification and methanogenesis during sludge anaerobic digestion. WATER RESEARCH 2021; 196:117004. [PMID: 33730545 DOI: 10.1016/j.watres.2021.117004] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 03/01/2021] [Accepted: 03/02/2021] [Indexed: 06/12/2023]
Abstract
Nonylphenol (NP) is widely known for its estrogenic activity on organisms, but its influence on biochemical processes executed by complex microbiota is still unclear. The dose-specific effects of NP on sludge anaerobic digestion by shaping acidification and methanogenesis were reported. Both low (50 mg/kg) and high (1000 mg/kg) NP doses were beneficial to acidification and aceticlastic methanogenesis (AM), and high NP dose further stimulated hydrogenotrophic methanogenesis (HM). Stable isotope probing analysis indicated that the predominant methanogenic pathway was shifted from AM to a combination of AM and HM as NP dose increased. Acidogenic and methanogenic consortia were accumulated and restructured by NP in favor of acidification and substrate-based methanogenesis. Acidification-related genes for bioconversion of substrates into acetate (glycolysis, stickland reaction and pyruvate metabolism), acetate transportation and microbial robust performance were enriched with both low and high NP doses. Methanogenesis-related genes encoding acetyl-CoA dehydrogenase/synthetase (CODH/ACS) in aceticlastic pathway and transporters for coenzyme synthesis were enhanced by both NP doses. Besides, high NP dose promoted a majority of genes in CO2-reduction pathway and key material transporters for coenzyme F420 and heterodisulfide reductase synthesis. This study shed light on complex microbial processes rather than certain organisms affected by NP with dose-specific pattern at genetic level and had implications in resource utilization of sludge containing refractory organics.
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Affiliation(s)
- Xu Duan
- State Key Laboratory of Pollution Control and Resources Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, China
| | - Yinguang Chen
- State Key Laboratory of Pollution Control and Resources Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China
| | - Leiyu Feng
- State Key Laboratory of Pollution Control and Resources Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China.
| | - Qi Zhou
- State Key Laboratory of Pollution Control and Resources Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, China
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21
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Karimi Dermani F, Gholamzadeh Khoei S, Afshar S, Amini R. The potential role of nucleophosmin (NPM1) in the development of cancer. J Cell Physiol 2021; 236:7832-7852. [PMID: 33959979 DOI: 10.1002/jcp.30406] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Revised: 04/07/2021] [Accepted: 04/12/2021] [Indexed: 12/18/2022]
Abstract
Nucleophosmin (NPM1) is a well-known nucleocytoplasmic shuttling protein that performs several cellular functions such as ribosome biogenesis, chromatin remodeling, genomic stability, cell cycle progression, and apoptosis. NPM1 has been identified to be necessary for normal cellular functions, and its altered regulation by overexpression, mutation, translocation, loss of function, or sporadic deletion can lead to cancer and tumorigenesis. In this review, we focus on the gene and protein structure of NPM1 and its physiological roles. Finally, we discuss the association of NPM1 with various types of cancer including solid tumors and leukemia.
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Affiliation(s)
- Fateme Karimi Dermani
- Research Center for Molecular Medicine, Hamadan University of Medical Sciences, Hamadan, Iran.,Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Saeideh Gholamzadeh Khoei
- Research Center for Molecular Medicine, Hamadan University of Medical Sciences, Hamadan, Iran.,Department of Medical Biotechnology, School of Advanced Medical Sciences and Technologies, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Saeid Afshar
- Research Center for Molecular Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Razieh Amini
- Research Center for Molecular Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
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22
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Hassan A, Iftinca M, Young D, Flynn R, Agosti F, Abdullah N, Defaye M, Scott MGH, Dufour A, Altier C. TRPV1 Activation Promotes β-arrestin2 Interaction with the Ribosomal Biogenesis Machinery in the Nucleolus:Implications for p53 Regulation and Neurite Outgrowth. Int J Mol Sci 2021; 22:2280. [PMID: 33668926 PMCID: PMC7956682 DOI: 10.3390/ijms22052280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 02/21/2021] [Accepted: 02/22/2021] [Indexed: 11/17/2022] Open
Abstract
Transient receptor potential vanilloids (TRPV1) are non-selective cation channels that sense and transduce inflammatory pain signals. We previously reported that activation of TRPV1 induced the translocation of β-arrestin2 (ARRB2) from the cytoplasm to the nucleus, raising questions about the functional role of ARRB2 in the nucleus. Here, we determined the ARRB2 nuclear signalosome by conducting a quantitative proteomic analysis of the nucleus-sequestered L395Q ARRB2 mutant, compared to the cytosolic wild-type ARRB2 (WT ARRB2), in a heterologous expression system. We identified clusters of proteins that localize to the nucleolus and are involved in ribosomal biogenesis. Accordingly, L395Q ARRB2 or WT ARRB2 after capsaicin treatment were found to co-localize and interact with the nucleolar marker nucleophosmin (NPM1), treacle protein (TCOF1) and RNA polymerase I (POL I). We further investigated the role of nuclear ARRB2 signaling in regulating neuroplasticity. Using neuroblastoma (neuro2a) cells and dorsal root ganglia (DRG) neurons, we found that L395Q ARRB2 mutant increased POL I activity, inhibited the tumor suppressorp53 (p53) level and caused a decrease in the outgrowth of neurites. Together, our results suggest that the activation of TRPV1 promotes the ARRB2-mediated regulation of ribosomal biogenesis in the nucleolus. The ARRB2-TCOF1-p53 checkpoint signaling pathway might be involved in regulating neurite outgrowth associated with pathological pain conditions.
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Affiliation(s)
- Ahmed Hassan
- Department of Physiology and Pharmacology, Inflammation Research Network-Snyder Institute for Chronic Diseases and Alberta Children’s Hospital Research Institute, University of Calgary, 3330 Hospital Dr NW, Calgary, AB T2N 1N4, Canada; (A.H.); (M.I.); (F.A.); (N.A.); (M.D.)
| | - Mircea Iftinca
- Department of Physiology and Pharmacology, Inflammation Research Network-Snyder Institute for Chronic Diseases and Alberta Children’s Hospital Research Institute, University of Calgary, 3330 Hospital Dr NW, Calgary, AB T2N 1N4, Canada; (A.H.); (M.I.); (F.A.); (N.A.); (M.D.)
| | - Daniel Young
- Department of Physiology and Pharmacology, McCaig Institute for Bone and Joint Health, University of Calgary, Calgary, AB T2N 1N4, Canada; (D.Y.); (A.D.)
| | - Robyn Flynn
- Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 1N4, Canada;
| | - Francina Agosti
- Department of Physiology and Pharmacology, Inflammation Research Network-Snyder Institute for Chronic Diseases and Alberta Children’s Hospital Research Institute, University of Calgary, 3330 Hospital Dr NW, Calgary, AB T2N 1N4, Canada; (A.H.); (M.I.); (F.A.); (N.A.); (M.D.)
| | - Nasser Abdullah
- Department of Physiology and Pharmacology, Inflammation Research Network-Snyder Institute for Chronic Diseases and Alberta Children’s Hospital Research Institute, University of Calgary, 3330 Hospital Dr NW, Calgary, AB T2N 1N4, Canada; (A.H.); (M.I.); (F.A.); (N.A.); (M.D.)
| | - Manon Defaye
- Department of Physiology and Pharmacology, Inflammation Research Network-Snyder Institute for Chronic Diseases and Alberta Children’s Hospital Research Institute, University of Calgary, 3330 Hospital Dr NW, Calgary, AB T2N 1N4, Canada; (A.H.); (M.I.); (F.A.); (N.A.); (M.D.)
| | - Mark G. H. Scott
- INSERM-CNRS, Team: Receptor Signalling & Molecular Scaffolds, Institut Cochin, 75014 Paris, France;
| | - Antoine Dufour
- Department of Physiology and Pharmacology, McCaig Institute for Bone and Joint Health, University of Calgary, Calgary, AB T2N 1N4, Canada; (D.Y.); (A.D.)
| | - Christophe Altier
- Department of Physiology and Pharmacology, Inflammation Research Network-Snyder Institute for Chronic Diseases and Alberta Children’s Hospital Research Institute, University of Calgary, 3330 Hospital Dr NW, Calgary, AB T2N 1N4, Canada; (A.H.); (M.I.); (F.A.); (N.A.); (M.D.)
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23
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Abstract
Mouse models of human myeloid malignancies support the detailed and focused investigation of selected driver mutations and represent powerful tools in the study of these diseases. Carefully developed murine models can closely recapitulate human myeloid malignancies in vivo, enabling the interrogation of a number of aspects of these diseases including their preclinical course, interactions with the microenvironment, effects of pharmacological agents, and the role of non-cell-autonomous factors, as well as the synergy between co-occurring mutations. Importantly, advances in gene-editing technologies, particularly CRISPR-Cas9, have opened new avenues for the development and study of genetically modified mice and also enable the direct modification of mouse and human hematopoietic cells. In this review we provide a concise overview of some of the important mouse models that have advanced our understanding of myeloid leukemogenesis with an emphasis on models relevant to clonal hematopoiesis, myelodysplastic syndromes, and acute myeloid leukemia with a normal karyotype.
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Affiliation(s)
- Faisal Basheer
- Wellcome-MRC Cambridge Stem Cell Institute, Jeffrey Cheah Biomedical Centre, Department of Haematology, University of Cambridge, Cambridge CB2 0AW, United Kingdom
- Haematological Cancer Genetics, Wellcome Trust Sanger Institute, Cambridge CB10 1SA, United Kingdom
- Department of Haematology, Cambridge University Hospitals NHS Foundation Trust, Cambridge CB2 0QQ, United Kingdom
| | - George Vassiliou
- Wellcome-MRC Cambridge Stem Cell Institute, Jeffrey Cheah Biomedical Centre, Department of Haematology, University of Cambridge, Cambridge CB2 0AW, United Kingdom
- Haematological Cancer Genetics, Wellcome Trust Sanger Institute, Cambridge CB10 1SA, United Kingdom
- Department of Haematology, Cambridge University Hospitals NHS Foundation Trust, Cambridge CB2 0QQ, United Kingdom
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24
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Ma Y, Wang X, Qiu C, Qin J, Wang K, Sun G, Jiang D, Li J, Wang L, Shi J, Wang P, Ye H, Dai L, Jiang BH, Zhang J. Using protein microarray to identify and evaluate autoantibodies to tumor-associated antigens in ovarian cancer. Cancer Sci 2020; 112:537-549. [PMID: 33185955 PMCID: PMC7894002 DOI: 10.1111/cas.14732] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 11/06/2020] [Accepted: 11/08/2020] [Indexed: 12/16/2022] Open
Abstract
The aim of this study was to develop a noninvasive serological diagnostic approach in identifying and evaluating a panel of candidate autoantibodies to tumor‐associated antigens (TAAs) based on protein microarray technology for early detection of ovarian cancer (OC). Protein microarray based on 154 proteins encoded by 138 cancer driver genes was used to screen candidate anti‐TAA autoantibodies in a discovery cohort containing 17 OC and 27 normal controls (NC). Indirect enzyme‐linked immunosorbent assay (ELISA) was used to detect the content of candidate anti‐TAA autoantibodies in sera from 140 subjects in the training cohort. Differential anti‐TAA autoantibodies were further validated in the validation cohort with 328 subjects. Subsequently, 112 sera from the patients with ovarian benign diseases with 104 OC sera and 104 NC sera together were recruited to identify the specificity of representative autoantibodies to OC among ovarian diseases. Five TAAs (GNAS, NPM1, FUBP1, p53, and KRAS) were screened out in the discovery phase, in which four of them presented higher levels in OC than controls (P < .05) in the training cohort, which was consistent with the result in the subsequent validation cohort. An optimized panel of three anti‐TAA (GNAS, p53, and NPM1) autoantibodies was identified to have relatively high sensitivity (51.2%), specificity (86.0%), and accuracy (68.6%), respectively. This panel can identify 51% of OC patients with CA125 negative. This study supports our assumption that anti‐TAA autoantibodies can be considered as potential diagnostic biomarkers for detection of OC; especially a panel of three anti‐TAA autoantibodies could be a good tool in immunodiagnosis of OC.
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Affiliation(s)
- Yan Ma
- Department of Epidemiology and Health Statistics & Henan Key Laboratory of Tumor Epidemiology, College of Public Health, Zhengzhou University, Zhengzhou, China.,Laboratory of Molecular Biology, Henan Luoyang Orthopedic Hospital & Henan Provincial Orthopedic Institute, Zhengzhou, China
| | - Xiao Wang
- Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, China.,Department of Pathology, The University of Iowa, Iowa City, IA, USA
| | - Cuipeng Qiu
- Department of Epidemiology and Health Statistics & Henan Key Laboratory of Tumor Epidemiology, College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Jiejie Qin
- Department of Epidemiology and Health Statistics & Henan Key Laboratory of Tumor Epidemiology, College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Keyan Wang
- Department of Epidemiology and Health Statistics & Henan Key Laboratory of Tumor Epidemiology, College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Guiying Sun
- Department of Epidemiology and Health Statistics & Henan Key Laboratory of Tumor Epidemiology, College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Di Jiang
- Department of Epidemiology and Health Statistics & Henan Key Laboratory of Tumor Epidemiology, College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Jitian Li
- Laboratory of Molecular Biology, Henan Luoyang Orthopedic Hospital & Henan Provincial Orthopedic Institute, Zhengzhou, China
| | - Lin Wang
- Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, China.,Department of Pathology, The University of Iowa, Iowa City, IA, USA
| | - Jianxiang Shi
- Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, China
| | - Peng Wang
- Department of Epidemiology and Health Statistics & Henan Key Laboratory of Tumor Epidemiology, College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Hua Ye
- Department of Epidemiology and Health Statistics & Henan Key Laboratory of Tumor Epidemiology, College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Liping Dai
- Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, China
| | - Bing-Hua Jiang
- Department of Pathology, The University of Iowa, Iowa City, IA, USA
| | - Jianying Zhang
- Department of Epidemiology and Health Statistics & Henan Key Laboratory of Tumor Epidemiology, College of Public Health, Zhengzhou University, Zhengzhou, China.,Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, China
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25
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Islam MS, Mahmud S, Sultana R, Dong W. Identification and in silico molecular modelling study of newly isolated Bacillus subtilis SI-18 strain against S9 protein of Rhizoctonia solani. ARAB J CHEM 2020. [DOI: 10.1016/j.arabjc.2020.09.044] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
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26
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Dong HJ, Zhang R, Kuang Y, Wang XJ. Selective regulation in ribosome biogenesis and protein production for efficient viral translation. Arch Microbiol 2020; 203:1021-1032. [PMID: 33124672 PMCID: PMC7594972 DOI: 10.1007/s00203-020-02094-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 09/18/2020] [Accepted: 10/13/2020] [Indexed: 11/25/2022]
Abstract
As intracellular parasites, viruses depend heavily on host cell structures and their functions to complete their life cycle and produce new viral particles. Viruses utilize or modulate cellular translational machinery to achieve efficient replication; the role of ribosome biogenesis and protein synthesis in viral replication particularly highlights the importance of the ribosome quantity and/or quality in controlling viral protein synthesis. Recently reported studies have demonstrated that ribosome biogenesis factors (RBFs) and ribosomal proteins (RPs) act as multifaceted regulators in selective translation of viral transcripts. Here we summarize the recent literature on RBFs and RPs and their association with subcellular redistribution, post-translational modification, enzyme catalysis, and direct interaction with viral proteins. The advances described in this literature establish a rationale for targeting ribosome production and function in the design of the next generation of antiviral agents.
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Affiliation(s)
- Hui-Jun Dong
- Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, Beijing, 100193, China
| | - Rui Zhang
- Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, Beijing, 100193, China.
| | - Yu Kuang
- Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, Beijing, 100193, China.
| | - Xiao-Jia Wang
- Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, Beijing, 100193, China.
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27
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Preferential transcription of the mutated allele in NPM1 mutated acute myeloid leukaemia. Sci Rep 2020; 10:17695. [PMID: 33077765 PMCID: PMC7572395 DOI: 10.1038/s41598-020-73782-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Accepted: 09/15/2020] [Indexed: 12/01/2022] Open
Abstract
Nucleophosmin is commonly both over-expressed and mutated in acute myeloid leukemia (AML). NPM1 mutations are always heterozygous. In addition, NPM1 has a number of different splice variants with the major variant encoded by exons 1–9 and 11–12 (NPM1.1). Further variants include NPM1.2 which lacks exons 8 and 10 and NPM1.3 which comprises exons 1–10 (and so lacks the region of sequence mutated in AML). In this study we quantified the expression of these three variants in 108 AML patient samples with and without NPM1 mutations and also assessed the level of expression from the wild-type and mutant alleles in variants NPM1.1 and NPM1.2. The results show that NPM1.1 is the most commonly expressed variant, however transcripts from wild-type and mutated alleles do not occur at equal levels, with a significant bias toward the mutated allele. Considering the involvement of mutant nucleophosmin in the progression and maintenance of AML, a bias towards mutated transcripts could have a significant impact on disease maintenance.
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28
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Kometani T, Arai T, Chibazakura T. Increased Expression of NPM1 Suppresses p27 Kip1 Function in Cancer Cells. Cancers (Basel) 2020; 12:cancers12102886. [PMID: 33050036 PMCID: PMC7600800 DOI: 10.3390/cancers12102886] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 09/26/2020] [Accepted: 10/05/2020] [Indexed: 11/16/2022] Open
Abstract
p27Kip1, a major cyclin-dependent kinase inhibitor, is frequently expressed at low levels in cancers, which correlates with their malignancy. However, in this study, we found a qualitative suppression of p27 overexpressed in some cancer cells. By proteomic screening for factors interacting with p27, we identified nucleophosmin isoform 1 (NPM1) as a novel p27-interacting factor and observed that NPM1 protein was expressed at high levels in some cancer cells. NPM1 overexpression in normal cells suppressed p27 function, and conversely, NPM1 knockdown in cancer cells restored the function in vitro. Furthermore, the tumors derived from cancer cells carrying the combination of p27 overexpression and NPM1 knockdown constructs showed significant suppression of growth as compared with those carrying other combinations in mouse xenograft models. These results strongly suggest that increased expression of NPM1 qualitatively suppresses p27 function in cancer cells.
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29
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López DJ, Rodríguez JA, Bañuelos S. Nucleophosmin, a multifunctional nucleolar organizer with a role in DNA repair. BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS 2020; 1868:140532. [PMID: 32853771 DOI: 10.1016/j.bbapap.2020.140532] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Revised: 08/05/2020] [Accepted: 08/07/2020] [Indexed: 12/12/2022]
Abstract
Nucleophosmin (NPM1) is a mostly nucleolar protein with crucial functions in cell growth and homeostasis, including regulation of ribosome biogenesis and stress response. Such multiple activities rely on its ability to interact with nucleic acids and with hundreds of proteins, as well as on a dynamic subcellular distribution. NPM1 is thus regulated by a complex interplay between localization and interactions, further modulated by post-translational modifications. NPM1 is a homopentamer, with globular domains connected by long, intrinsically disordered linkers. This configuration allows NPM1 to engage in liquid-liquid phase separation phenomena, which could underlie a key role in nucleolar organization. Here, we will discuss NPM1 conformational and functional versatility, emphasizing its emerging, and still largely unexplored, role in DNA damage repair. Since NPM1 is altered in a subtype of acute myeloid leukaemia (AML), we will also present ongoing research on the molecular mechanisms underlying its pathogenic role and potential NPM1-targeting therapeutic strategies.
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Affiliation(s)
- David J López
- Biofisika Institute (UPV/EHU, CSIC) and Department of Biochemistry and Molecular Biology, University of the Basque Country (UPV/EHU), Leioa, Spain
| | - José A Rodríguez
- Department of Genetics, Physical Anthropology and Animal Physiology, University of the Basque Country (UPV/EHU), Leioa, Spain
| | - Sonia Bañuelos
- Biofisika Institute (UPV/EHU, CSIC) and Department of Biochemistry and Molecular Biology, University of the Basque Country (UPV/EHU), Leioa, Spain.
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30
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Cela I, Di Matteo A, Federici L. Nucleophosmin in Its Interaction with Ligands. Int J Mol Sci 2020; 21:E4885. [PMID: 32664415 PMCID: PMC7402337 DOI: 10.3390/ijms21144885] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 07/07/2020] [Accepted: 07/08/2020] [Indexed: 12/13/2022] Open
Abstract
Nucleophosmin (NPM1) is a mainly nucleolar protein that shuttles between nucleoli, nucleoplasm and cytoplasm to fulfill its many functions. It is a chaperone of both nucleic acids and proteins and plays a role in cell cycle control, centrosome duplication, ribosome maturation and export, as well as the cellular response to a variety of stress stimuli. NPM1 is a hub protein in nucleoli where it contributes to nucleolar organization through heterotypic and homotypic interactions. Furthermore, several alterations, including overexpression, chromosomal translocations and mutations are present in solid and hematological cancers. Recently, novel germline mutations that cause dyskeratosis congenita have also been described. This review focuses on NPM1 interactions and inhibition. Indeed, the list of NPM1 binding partners is ever-growing and, in recent years, many studies contributed to clarifying the structural basis for NPM1 recognition of both nucleic acids and several proteins. Intriguingly, a number of natural and synthetic ligands that interfere with NPM1 interactions have also been reported. The possible role of NPM1 inhibitors in the treatment of multiple cancers and other pathologies is emerging as a new therapeutic strategy.
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Affiliation(s)
- Ilaria Cela
- Center for Advanced Studies and Technology (CAST), University of Chieti “G. d’Annunzio”, Via Polacchi, 66100 Chieti, Italy;
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti “G. d’Annunzio”, Via dei Vestini 31, 66100 Chieti, Italy
| | - Adele Di Matteo
- Institute of Molecular Biology and Pathology (IBPM) of the CNR, c/o “Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Roma, Italy;
| | - Luca Federici
- Center for Advanced Studies and Technology (CAST), University of Chieti “G. d’Annunzio”, Via Polacchi, 66100 Chieti, Italy;
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti “G. d’Annunzio”, Via dei Vestini 31, 66100 Chieti, Italy
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31
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Kalous J, Jansová D, Šušor A. Role of Cyclin-Dependent Kinase 1 in Translational Regulation in the M-Phase. Cells 2020; 9:cells9071568. [PMID: 32605021 PMCID: PMC7408968 DOI: 10.3390/cells9071568] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 06/15/2020] [Accepted: 06/24/2020] [Indexed: 12/20/2022] Open
Abstract
Cyclin dependent kinase 1 (CDK1) has been primarily identified as a key cell cycle regulator in both mitosis and meiosis. Recently, an extramitotic function of CDK1 emerged when evidence was found that CDK1 is involved in many cellular events that are essential for cell proliferation and survival. In this review we summarize the involvement of CDK1 in the initiation and elongation steps of protein synthesis in the cell. During its activation, CDK1 influences the initiation of protein synthesis, promotes the activity of specific translational initiation factors and affects the functioning of a subset of elongation factors. Our review provides insights into gene expression regulation during the transcriptionally silent M-phase and describes quantitative and qualitative translational changes based on the extramitotic role of the cell cycle master regulator CDK1 to optimize temporal synthesis of proteins to sustain the division-related processes: mitosis and cytokinesis.
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32
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Nucleophosmin 1 Mutations in Acute Myeloid Leukemia. Genes (Basel) 2020; 11:genes11060649. [PMID: 32545659 PMCID: PMC7348733 DOI: 10.3390/genes11060649] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 06/06/2020] [Accepted: 06/09/2020] [Indexed: 12/16/2022] Open
Abstract
Nucleophosmin (NPM1) is a ubiquitously expressed nucleolar protein involved in ribosome biogenesis, the maintenance of genomic integrity and the regulation of the ARF-p53 tumor-suppressor pathway among multiple other functions. Mutations in the corresponding gene cause a cytoplasmic dislocation of the NPM1 protein. These mutations are unique to acute myeloid leukemia (AML), a disease characterized by clonal expansion, impaired differentiation and the proliferation of myeloid cells in the bone marrow. Despite our improved understanding of NPM1 mutations and their consequences, the underlying leukemia pathogenesis is still unclear. Recent studies that focused on dysregulated gene expression in AML with mutated NPM1 have shed more light into these mechanisms. In this article, we review the current evidence on normal functions of NPM1 and aberrant functioning in AML, and highlight investigational strategies targeting these mutations.
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33
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Turi Z, Lacey M, Mistrik M, Moudry P. Impaired ribosome biogenesis: mechanisms and relevance to cancer and aging. Aging (Albany NY) 2020; 11:2512-2540. [PMID: 31026227 PMCID: PMC6520011 DOI: 10.18632/aging.101922] [Citation(s) in RCA: 107] [Impact Index Per Article: 26.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Accepted: 04/04/2019] [Indexed: 02/06/2023]
Abstract
The biosynthesis of ribosomes is a complex process that requires the coordinated action of many factors and a huge energy investment from the cell. Ribosomes are essential for protein production, and thus for cellular survival, growth and proliferation. Ribosome biogenesis is initiated in the nucleolus and includes: the synthesis and processing of ribosomal RNAs, assembly of ribosomal proteins, transport to the cytoplasm and association of ribosomal subunits. The disruption of ribosome biogenesis at various steps, with either increased or decreased expression of different ribosomal components, can promote cell cycle arrest, senescence or apoptosis. Additionally, interference with ribosomal biogenesis is often associated with cancer, aging and age-related degenerative diseases. Here, we review current knowledge on impaired ribosome biogenesis, discuss the main factors involved in stress responses under such circumstances and focus on examples with clinical relevance.
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Affiliation(s)
- Zsofia Turi
- Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University, 779 00 Olomouc, Czech Republic
| | - Matthew Lacey
- Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University, 779 00 Olomouc, Czech Republic
| | - Martin Mistrik
- Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University, 779 00 Olomouc, Czech Republic
| | - Pavel Moudry
- Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University, 779 00 Olomouc, Czech Republic
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34
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Chen Y, Hu J. Nucleophosmin1 (NPM1) abnormality in hematologic malignancies, and therapeutic targeting of mutant NPM1 in acute myeloid leukemia. Ther Adv Hematol 2020; 11:2040620719899818. [PMID: 32071709 PMCID: PMC6997955 DOI: 10.1177/2040620719899818] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Accepted: 12/18/2019] [Indexed: 01/07/2023] Open
Abstract
Nucleophosmin (NPM1) is an abundant nucleolar protein that is
implicated in a variety of biological processes and in the pathogenesis of
several human malignancies. For hematologic malignancies, approximately
one-third of anaplastic large-cell non-Hodgkin’s lymphomas were found to express
a fusion between NPM1 and the catalytic domain of anaplastic
lymphoma receptor tyrosine kinase. About 50–60% of acute myeloid leukemia
patients with normal karyotype carry NPM1 mutations, which are
characterized by cytoplasmic dislocation of the NPM1 protein.
Nevertheless, NPM1 is overexpressed in various hematologic and
solid tumor malignancies. NPM1 overexpression is considered a
prognostic marker of recurrence and progression of cancer. Thus,
NPM1 abnormalities play a critical role in several types of
hematologic malignancies. This has led to intense interest in the development of
an NPM1 targeting strategy for cancer therapy. The aim of this
review is to summarize present knowledge on NPM1 origin,
pathogenesis, and therapeutic interventions in hematologic malignancies.
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Affiliation(s)
- Yingyu Chen
- Department of Hematology, Fujian Institute of Hematology, Fujian Medical University Union Hospital, No.29 Xinquan Road, Fuzhou, Fujian 350001, China
| | - Jianda Hu
- Department of Hematology, Fujian Institute of Hematology, Fujian Medical University Union Hospital, Fuzhou, Fujian, China
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35
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Papaioannou D, Petri A, Dovey OM, Terreri S, Wang E, Collins FA, Woodward LA, Walker AE, Nicolet D, Pepe F, Kumchala P, Bill M, Walker CJ, Karunasiri M, Mrózek K, Gardner ML, Camilotto V, Zitzer N, Cooper JL, Cai X, Rong-Mullins X, Kohlschmidt J, Archer KJ, Freitas MA, Zheng Y, Lee RJ, Aifantis I, Vassiliou G, Singh G, Kauppinen S, Bloomfield CD, Dorrance AM, Garzon R. The long non-coding RNA HOXB-AS3 regulates ribosomal RNA transcription in NPM1-mutated acute myeloid leukemia. Nat Commun 2019; 10:5351. [PMID: 31767858 PMCID: PMC6877618 DOI: 10.1038/s41467-019-13259-2] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Accepted: 10/28/2019] [Indexed: 12/21/2022] Open
Abstract
Long non-coding RNAs (lncRNAs) are important regulatory molecules that are implicated in cellular physiology and pathology. In this work, we dissect the functional role of the HOXB-AS3 lncRNA in patients with NPM1-mutated (NPM1mut) acute myeloid leukemia (AML). We show that HOXB-AS3 regulates the proliferative capacity of NPM1mut AML blasts in vitro and in vivo. HOXB-AS3 is shown to interact with the ErbB3-binding protein 1 (EBP1) and guide EBP1 to the ribosomal DNA locus. Via this mechanism, HOXB-AS3 regulates ribosomal RNA transcription and de novo protein synthesis. We propose that in the context of NPM1 mutations, HOXB-AS3 overexpression acts as a compensatory mechanism, which allows adequate protein production in leukemic blasts.
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MESH Headings
- Acute Disease
- Animals
- Cell Line, Tumor
- Cell Proliferation
- HEK293 Cells
- Humans
- K562 Cells
- Leukemia, Myeloid/genetics
- Leukemia, Myeloid/pathology
- Mice, Inbred NOD
- Mice, Knockout
- Mice, SCID
- Mutation
- Nuclear Proteins/genetics
- Nucleophosmin
- Protein Biosynthesis/genetics
- RNA, Long Noncoding/genetics
- RNA, Ribosomal/genetics
- THP-1 Cells
- Transcription, Genetic
- Transplantation, Heterologous
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Affiliation(s)
| | - Andreas Petri
- Center for RNA Medicine, Department of Clinical Medicine, Aalborg University, Copenhagen, Denmark
| | - Oliver M Dovey
- Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Cambridge, UK
| | - Sara Terreri
- Institute of Genetics and Biophysics (IGB-ABT), National Council of Research (CNR), Naples, Italy
| | - Eric Wang
- Department of Pathology, New York University School of Medicine, New York, NY, USA
| | - Frances A Collins
- The Ohio State University, Comprehensive Cancer Center, Columbus, OH, USA
| | - Lauren A Woodward
- Department of Molecular Genetics, Center for RNA Biology, The Ohio State University, Columbus, OH, USA
| | - Allison E Walker
- The Ohio State University, Comprehensive Cancer Center, Columbus, OH, USA
| | - Deedra Nicolet
- The Ohio State University, Comprehensive Cancer Center, Columbus, OH, USA
- Alliance for Clinical Trials in Oncology Statistics and Data Center, The Ohio State University, Columbus, OH, USA
| | - Felice Pepe
- The Ohio State University, Comprehensive Cancer Center, Columbus, OH, USA
| | - Prasanthi Kumchala
- The Ohio State University, Comprehensive Cancer Center, Columbus, OH, USA
| | - Marius Bill
- The Ohio State University, Comprehensive Cancer Center, Columbus, OH, USA
| | | | - Malith Karunasiri
- The Ohio State University, Comprehensive Cancer Center, Columbus, OH, USA
| | - Krzysztof Mrózek
- The Ohio State University, Comprehensive Cancer Center, Columbus, OH, USA
| | - Miranda L Gardner
- The Ohio State University, Comprehensive Cancer Center, Columbus, OH, USA
- Department of Cancer Biology and Genetics, The Ohio State University, Columbus, OH, USA
| | - Virginia Camilotto
- Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Cambridge, UK
- Department of Molecular Medicine, University of Pavia, Pavia, Italy
| | - Nina Zitzer
- The Ohio State University, Comprehensive Cancer Center, Columbus, OH, USA
| | - Jonathan L Cooper
- Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Cambridge, UK
| | - Xiongwei Cai
- Cancer and Blood Diseases Institute, Cincinnati Children's Hospital Medical Center, University of Cincinnati, Cincinnati, OH, USA
| | - Xiaoqing Rong-Mullins
- The Ohio State University, Comprehensive Cancer Center, Columbus, OH, USA
- Division of Biostatistics, College of Public Health, The Ohio State University, Columbus, OH, USA
| | - Jessica Kohlschmidt
- The Ohio State University, Comprehensive Cancer Center, Columbus, OH, USA
- Alliance for Clinical Trials in Oncology Statistics and Data Center, The Ohio State University, Columbus, OH, USA
| | - Kellie J Archer
- The Ohio State University, Comprehensive Cancer Center, Columbus, OH, USA
- Division of Biostatistics, College of Public Health, The Ohio State University, Columbus, OH, USA
| | - Michael A Freitas
- The Ohio State University, Comprehensive Cancer Center, Columbus, OH, USA
- Department of Cancer Biology and Genetics, The Ohio State University, Columbus, OH, USA
| | - Yi Zheng
- Cancer and Blood Diseases Institute, Cincinnati Children's Hospital Medical Center, University of Cincinnati, Cincinnati, OH, USA
| | - Robert J Lee
- Division of Pharmaceutics, College of Pharmacy, The Ohio State University, Columbus, OH, USA
| | - Iannis Aifantis
- Department of Pathology, New York University School of Medicine, New York, NY, USA
| | - George Vassiliou
- Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Cambridge, UK
- Department of Haematology, Cambridge University Hospitals NHS Trust, Cambridge, UK
| | - Guramrit Singh
- Department of Molecular Genetics, Center for RNA Biology, The Ohio State University, Columbus, OH, USA
| | - Sakari Kauppinen
- Center for RNA Medicine, Department of Clinical Medicine, Aalborg University, Copenhagen, Denmark
| | - Clara D Bloomfield
- The Ohio State University, Comprehensive Cancer Center, Columbus, OH, USA
| | | | - Ramiro Garzon
- The Ohio State University, Comprehensive Cancer Center, Columbus, OH, USA.
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36
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Evidence that melatonin downregulates Nedd4-1 E3 ligase and its role in cellular survival. Toxicol Appl Pharmacol 2019; 379:114686. [DOI: 10.1016/j.taap.2019.114686] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Revised: 06/14/2019] [Accepted: 07/16/2019] [Indexed: 01/06/2023]
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37
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Skayneh H, Jishi B, Hleihel R, Hamieh M, Darwiche N, Bazarbachi A, El Sabban M, El Hajj H. A Critical Review of Animal Models Used in Acute Myeloid Leukemia Pathophysiology. Genes (Basel) 2019; 10:E614. [PMID: 31412687 PMCID: PMC6722578 DOI: 10.3390/genes10080614] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Revised: 07/30/2019] [Accepted: 08/01/2019] [Indexed: 12/24/2022] Open
Abstract
Acute myeloid leukemia (AML) is one of the most frequent, complex, and heterogeneous hematological malignancies. AML prognosis largely depends on acquired cytogenetic, epigenetic, and molecular abnormalities. Despite the improvement in understanding the biology of AML, survival rates remain quite low. Animal models offer a valuable tool to recapitulate different AML subtypes, and to assess the potential role of novel and known mutations in disease progression. This review provides a comprehensive and critical overview of select available AML animal models. These include the non-mammalian Zebrafish and Drosophila models as well as the mammalian rodent systems, comprising rats and mice. The suitability of each animal model, its contribution to the advancement of knowledge in AML pathophysiology and treatment, as well as its advantages and limitations are discussed. Despite some limitations, animal models represent a powerful approach to assess toxicity, and permit the design of new therapeutic strategies.
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Affiliation(s)
- Hala Skayneh
- Department of Experimental Pathology, Microbiology and Immunology, Faculty of Medicine, American University of Beirut, Beirut 1107 2020, Lebanon
| | - Batoul Jishi
- Department of Anatomy, Cell Biology and Physiological Sciences, Faculty of Medicine, American University of Beirut, Beirut 1107 2020, Lebanon
| | - Rita Hleihel
- Department of Internal Medicine, Faculty of Medicine, American University of Beirut, Beirut 1107 2020, Lebanon
| | - Maguy Hamieh
- Department of Experimental Pathology, Microbiology and Immunology, Faculty of Medicine, American University of Beirut, Beirut 1107 2020, Lebanon
- Department of Internal Medicine, Faculty of Medicine, American University of Beirut, Beirut 1107 2020, Lebanon
| | - Nadine Darwiche
- Department of Biochemistry and Molecular Genetics, Faculty of Medicine, American University of Beirut, Beirut 1107 2020, Lebanon
| | - Ali Bazarbachi
- Department of Anatomy, Cell Biology and Physiological Sciences, Faculty of Medicine, American University of Beirut, Beirut 1107 2020, Lebanon
- Department of Internal Medicine, Faculty of Medicine, American University of Beirut, Beirut 1107 2020, Lebanon
| | - Marwan El Sabban
- Department of Anatomy, Cell Biology and Physiological Sciences, Faculty of Medicine, American University of Beirut, Beirut 1107 2020, Lebanon.
| | - Hiba El Hajj
- Department of Experimental Pathology, Microbiology and Immunology, Faculty of Medicine, American University of Beirut, Beirut 1107 2020, Lebanon.
- Department of Internal Medicine, Faculty of Medicine, American University of Beirut, Beirut 1107 2020, Lebanon.
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38
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Ducray SP, Natarajan K, Garland GD, Turner SD, Egger G. The Transcriptional Roles of ALK Fusion Proteins in Tumorigenesis. Cancers (Basel) 2019; 11:cancers11081074. [PMID: 31366041 PMCID: PMC6721376 DOI: 10.3390/cancers11081074] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Revised: 07/17/2019] [Accepted: 07/23/2019] [Indexed: 12/14/2022] Open
Abstract
Anaplastic lymphoma kinase (ALK) is a tyrosine kinase involved in neuronal and gut development. Initially discovered in T cell lymphoma, ALK is frequently affected in diverse cancers by oncogenic translocations. These translocations involve different fusion partners that facilitate multimerisation and autophosphorylation of ALK, resulting in a constitutively active tyrosine kinase with oncogenic potential. ALK fusion proteins are involved in diverse cellular signalling pathways, such as Ras/extracellular signal-regulated kinase (ERK), phosphatidylinositol 3-kinase (PI3K)/Akt and Janus protein tyrosine kinase (JAK)/STAT. Furthermore, ALK is implicated in epigenetic regulation, including DNA methylation and miRNA expression, and an interaction with nuclear proteins has been described. Through these mechanisms, ALK fusion proteins enable a transcriptional programme that drives the pathogenesis of a range of ALK-related malignancies.
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Affiliation(s)
- Stephen P Ducray
- Division of Cellular and Molecular Pathology, Department of Pathology, University of Cambridge, Cambridge CB20QQ, UK
| | | | - Gavin D Garland
- Division of Cellular and Molecular Pathology, Department of Pathology, University of Cambridge, Cambridge CB20QQ, UK
| | - Suzanne D Turner
- Division of Cellular and Molecular Pathology, Department of Pathology, University of Cambridge, Cambridge CB20QQ, UK.
| | - Gerda Egger
- Department of Pathology, Medical University Vienna, 1090 Vienna, Austria.
- Ludwig Boltzmann Institute Applied Diagnostics, 1090 Vienna, Austria.
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39
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Kaowinn S, Seo EJ, Heo W, Bae JH, Park EJ, Lee S, Kim YJ, Koh SS, Jang IH, Shin DH, Chung YH. Cancer upregulated gene 2 (CUG2), a novel oncogene, promotes stemness-like properties via the NPM1-TGF-β signaling axis. Biochem Biophys Res Commun 2019; 514:1278-1284. [DOI: 10.1016/j.bbrc.2019.05.091] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Accepted: 05/12/2019] [Indexed: 01/18/2023]
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40
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Brodská B, Šašinková M, Kuželová K. Nucleophosmin in leukemia: Consequences of anchor loss. Int J Biochem Cell Biol 2019; 111:52-62. [PMID: 31009764 DOI: 10.1016/j.biocel.2019.04.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Revised: 04/17/2019] [Accepted: 04/18/2019] [Indexed: 12/17/2022]
Abstract
Nucleophosmin (NPM), one of the most abundant nucleolar proteins, has crucial functions in ribosome biogenesis, cell cycle control, and DNA-damage repair. In human cells, NPM occurs mainly in oligomers. It functions as a chaperone, undergoes numerous interactions and forms part of many protein complexes. Although NPM role in carcinogenesis is not fully elucidated, a variety of tumor suppressor as well as oncogenic activities were described. NPM is overexpressed, fused with other proteins, or mutated in various tumor types. In the acute myeloid leukemia (AML), characteristic mutations in NPM1 gene, leading to modification of NPM C-terminus, are the most frequent genetic aberration. Although multiple mutation types of NPM are found in AML, they are all characterized by aberrant cytoplasmic localization of the mutated protein. In this review, current knowledge of the structure and function of NPM is presented in relation to its interaction network, in particular to the interaction with other nucleolar proteins and with proteins active in apoptosis. Possible molecular mechanisms of NPM mutation-driven leukemogenesis and NPM therapeutic targeting are discussed. Finally, recent findings concerning the immunogenicity of the mutated NPM and specific immunological features of AML patients with NPM mutation are summarized.
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Affiliation(s)
- Barbora Brodská
- Institute of Hematology and Blood Transfusion, U Nemocnice 1, 128 20 Prague 2, Czech Republic
| | - Markéta Šašinková
- Institute of Hematology and Blood Transfusion, U Nemocnice 1, 128 20 Prague 2, Czech Republic
| | - Kateřina Kuželová
- Institute of Hematology and Blood Transfusion, U Nemocnice 1, 128 20 Prague 2, Czech Republic.
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41
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Wang X, Ma H, Wang X. Nucleophosmin/B23 contributes to hepatic insulin resistance through the modulation of NF-κB pathway. Biochem Biophys Res Commun 2019; 511:214-220. [PMID: 30799086 DOI: 10.1016/j.bbrc.2019.01.127] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Accepted: 01/29/2019] [Indexed: 02/06/2023]
Abstract
Nucleophosmin (NPM)/B23 is an important nucleolar phosphoprotein involved in the regulation of assorted cellular signaling pathways. In the present study, we revealed a critical role of NPM in liver insulin resistance. NPM is markedly upregulated in insulin-resistant liver tissues and palmitic acid (PA)-exposed HepG2 cells both at mRNA and protein levels. Ectopic expression of NPM in hepatocytes aggravated PA-induced insulin resistance, lipid droplet accumulation, glucose intake impairment as well as the expression of gluconeogenic genes. Coinciding with these results, interference of NPM using small interfering RNA (siRNA) oligos ameliorated PA-induced insulin resistance, as revealed by increased phosphorylation of AKT and GSK3β following insulin treatment. As predicted, PA-triggered alterations in glucose intake and the expression of gluconeogenic enzymes were attenuated following NPM depletion. Finally, we showed that NPM plays an indispensible role in PA-induced activation of NF-κB pathway. Both of NF-κB p65 phosphorylation and nuclear translocation were impeded by NPM interference in PA-treated HepG2 cells. Taken together, these findings explicitly demonstrate that NPM participates in the development of liver insulin resistance, suggesting that NPM may serve as a potential therapeutic target of type 2 diabetes.
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Affiliation(s)
- Xiaohua Wang
- Department of Endocrinology, The Second Affiliated Hospital of Nantong University, Nantong University, 226001, Nantong, Jiangsu, PR China
| | - Hong Ma
- Department of Endocrinology, The Second Affiliated Hospital of Nantong University, Nantong University, 226001, Nantong, Jiangsu, PR China; Department of Endocrinology, Affiliated Hospital of Nantong University, 20 Xisi Road, Nantong, 226001, Jiangsu Province, PR China
| | - Xueqin Wang
- Department of Endocrinology, The Second Affiliated Hospital of Nantong University, Nantong University, 226001, Nantong, Jiangsu, PR China.
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42
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Brunetti L, Gundry MC, Goodell MA. New insights into the biology of acute myeloid leukemia with mutated NPM1. Int J Hematol 2019; 110:150-160. [DOI: 10.1007/s12185-018-02578-7] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Accepted: 12/25/2018] [Indexed: 12/20/2022]
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43
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Lobaina Y, Perera Y. Implication of B23/NPM1 in Viral Infections, Potential Uses of B23/NPM1 Inhibitors as Antiviral Therapy. Infect Disord Drug Targets 2019; 19:2-16. [PMID: 29589547 DOI: 10.2174/1871526518666180327124412] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Revised: 01/08/2018] [Accepted: 02/12/2018] [Indexed: 06/08/2023]
Abstract
BACKGROUND B23/nucleophosmin (B23/NPM1) is an abundant multifunctional protein mainly located in the nucleolus but constantly shuttling between the nucleus and cytosol. As a consequence of its constitutive expression, intracellular dynamics and binding capacities, B23/NPM1 interacts with multiple cellular factors in different cellular compartments, but also with viral proteins from both DNA and RNA viruses. B23/NPM1 influences overall viral replication of viruses like HIV, HBV, HCV, HDV and HPV by playing functional roles in different stages of viral replication including nuclear import, viral genome transcription and assembly, as well as final particle formation. Of note, some virus modify the subcellular localization, stability and/or increases B23/NPM1 expression levels on target cells, probably to foster B23/NPM1 functions in their own replicative cycle. RESULTS This review summarizes current knowledge concerning the interaction of B23/NPM1 with several viral proteins during relevant human infections. The opportunities and challenges of targeting this well-conserved host protein as a potentially new broad antiviral treatment are discussed in detail. Importantly, although initially conceived to treat cancer, a handful of B23/NPM1 inhibitors are currently available to test on viral infection models. CONCLUSION As B23/NPM1 partakes in key steps of viral replication and some viral infections remain as unsolved medical needs, an appealing idea may be the expedite evaluation of B23/NPM1 inhibitors in viral infections. Furthermore, worth to be addressed is if the up-regulation of B23/NPM1 protein levels that follows persistent viral infections may be instrumental to the malignant transformation induced by virus like HBV and HCV.
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Affiliation(s)
- Yadira Lobaina
- Therapeutic Hepatitis B Vaccine Group, Vaccine Division, Biomedical Research Direction, Center for Genetic Engineering and Biotechnology, Havana, CP 10600, Cuba
| | - Yasser Perera
- Molecular Oncology Group, Pharmaceuticals Division, Biomedical Research Direction, Center for Genetic Engineering and Biotechnology, Havana, CP 10600, Cuba
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Kaypee S, Sahadevan SA, Sudarshan D, Halder Sinha S, Patil S, Senapati P, Kodaganur GS, Mohiyuddin A, Dasgupta D, Kundu TK. Oligomers of human histone chaperone NPM1 alter p300/KAT3B folding to induce autoacetylation. Biochim Biophys Acta Gen Subj 2018; 1862:1729-1741. [DOI: 10.1016/j.bbagen.2018.05.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Revised: 05/02/2018] [Accepted: 05/04/2018] [Indexed: 11/27/2022]
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45
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Abstract
The nucleolus is a prominent subnuclear compartment, where ribosome biosynthesis takes place. Recently, the nucleolus has gained attention for its novel role in the regulation of cellular stress. Nucleolar stress is emerging as a new concept, which is characterized by diverse cellular insult-induced abnormalities in nucleolar structure and function, ultimately leading to activation of p53 or other stress signaling pathways and alterations in cell behavior. Despite a number of comprehensive reviews on this concept, straightforward and clear-cut way criteria for a nucleolar stress state, regarding the factors that elicit this state, the morphological and functional alterations as well as the rationale for p53 activation are still missing. Based on literature of the past two decades, we herein summarize the evolution of the concept and provide hallmarks of nucleolar stress. Along with updated information and thorough discussion of existing confusions in the field, we pay particular attention to the current understanding of the sensing mechanisms, i.e., how stress is integrated by p53. In addition, we propose our own emphasis regarding the role of nucleolar protein NPM1 in the hallmarks of nucleolar stress and sensing mechanisms. Finally, the links of nucleolar stress to human diseases are briefly and selectively introduced.
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Affiliation(s)
- Kai Yang
- Shanghai Key Laboratory for Tumor Microenvironment and Inflammation, Department of Biochemistry and Molecular Cell Biology, Shanghai Jiao Tong University School of Medicine, 280 South Chongqing Road, Shanghai, 200025, China.,Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases with Integrated Chinese-Western Medicine, Shanghai Institute of Traumatology and Orthopedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, China
| | - Jie Yang
- Shanghai Key Laboratory for Tumor Microenvironment and Inflammation, Department of Biochemistry and Molecular Cell Biology, Shanghai Jiao Tong University School of Medicine, 280 South Chongqing Road, Shanghai, 200025, China
| | - Jing Yi
- Shanghai Key Laboratory for Tumor Microenvironment and Inflammation, Department of Biochemistry and Molecular Cell Biology, Shanghai Jiao Tong University School of Medicine, 280 South Chongqing Road, Shanghai, 200025, China
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46
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Kunchala P, Kuravi S, Jensen R, McGuirk J, Balusu R. When the good go bad: Mutant NPM1 in acute myeloid leukemia. Blood Rev 2018; 32:167-183. [DOI: 10.1016/j.blre.2017.11.001] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Revised: 10/19/2017] [Accepted: 11/02/2017] [Indexed: 12/26/2022]
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47
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Ivanov AV, Gopanenko AV, Malygin AA, Karpova GG. The eS26 protein is involved in the formation of a nucleophosmin binding site on the human 40S ribosomal subunit. BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS 2018; 1866:642-650. [PMID: 29563070 DOI: 10.1016/j.bbapap.2018.03.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Revised: 02/15/2018] [Accepted: 03/15/2018] [Indexed: 01/15/2023]
Abstract
Human ribosomal protein eS26 is an indispensable component of the small (40S) ribosomal subunit and, along with other ribosomal proteins, is involved in interaction with mRNAs during translation. Here, we explored the behavior of the exogenous ribosomal protein eS26 modified at the C-terminus in the events related to translation in human cells using a doxycycline-inducible HEK293-derived cell line enabling the stable production of C-terminal FLAG-tagged eS26 (eS26FLAG). The production of eS26FLAG in cells was accompanied by a decrease in the endogenous eS26 content although its mRNA level did not change. Exogenous eS26FLAG was able to replace endogenous eS26 in 40S ribosomal subunits, without affecting the assembly and translational activity of 80S ribosomes. However, eS26FLAG-containing ribosome fractions from the respective polysome profile displayed a reduced content of nucleophosmin, a multifunctional protein, which, as is known, is involved in the formation and nuclear export of ribosomal subunits. In general, our data showed that although the appearance of the FLAG tag at the C-terminus of eS26 does not affect translation, it interferes with nucleophosmin incorporation into the 40S subunit, pointing out the importance of the C-terminus integrity of eS26 for nucleophosmin binding. In addition, with the recombinant protein, we demonstrated the binding of nucleophosmin to both isolated eS26 and 40S subunits in the presence of HeLa nuclear extract that phosphorylated the recombinant nucleophosmin. These findings suggest that for nuclear export, nucleophosmin could directly bind to pre-40S subunits in the mRNA exit site region where the C-terminus of eS26 is located.
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Affiliation(s)
- Anton V Ivanov
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - Alexander V Gopanenko
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia; Novosibirsk State University, Novosibirsk, Russia
| | - Alexey A Malygin
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia; Novosibirsk State University, Novosibirsk, Russia
| | - Galina G Karpova
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia; Novosibirsk State University, Novosibirsk, Russia.
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48
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Boudra R, Lagrafeuille R, Lours-Calet C, de Joussineau C, Loubeau-Legros G, Chaveroux C, Saru JP, Baron S, Morel L, Beaudoin C. mTOR transcriptionally and post-transcriptionally regulates Npm1 gene expression to contribute to enhanced proliferation in cells with Pten inactivation. Cell Cycle 2018; 15:1352-62. [PMID: 27050906 DOI: 10.1080/15384101.2016.1166319] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
The mammalian target of rapamycin (mTOR) plays essential roles in the regulation of growth-related processes such as protein synthesis, cell sizing and metabolism in both normal and pathological growing conditions. These functions of mTOR are thought to be largely a consequence of its cytoplasmic activity in regulating translation rate, but accumulating data highlight supplementary role(s) for this serine/threonine kinase within the nucleus. Indeed, the nuclear activities of mTOR are currently associated with the control of protein biosynthetic capacity through its ability to regulate the expression of gene products involved in the control of ribosomal biogenesis and proliferation. Using primary murine embryo fibroblasts (MEFs), we observed that cells with overactive mTOR signaling displayed higher abundance for the growth-associated Npm1 protein, in what represents a novel mechanism of Npm1 gene regulation. We show that Npm1 gene expression is dependent on mTOR as demonstrated by treatment of wild-type and Pten inactivated MEFs cultured with rapamycin or by transient transfections of small interfering RNA directed against mTOR. In accordance, the mTOR kinase localizes to the Npm1 promoter gene in vivo and it enhances the activity of a human NPM1-luciferase reporter gene providing an opportunity for direct control. Interestingly, rapamycin did not dislodge mTOR from the Npm1 promoter but rather strongly destabilized the Npm1 transcript by increasing its turnover. Using a prostate-specific Pten-deleted mouse model of cancer, Npm1 mRNA levels were found up-regulated and sensitive to rapamycin. Finally, we also showed that Npm1 is required to promote mTOR-dependent cell proliferation. We therefore proposed a model whereby mTOR is closely involved in the transcriptional and posttranscriptional regulation of Npm1 gene expression with implications in development and diseases including cancer.
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Affiliation(s)
- Rafik Boudra
- a Université Clermont Auvergne, Université Blaise Pascal, GReD , BP 10448 , Clermont-Ferrand , France.,b CNRS, UMR6293, GReD , Clermont-Ferrand , France.,c Inserm, UMR1103, GReD , Clermont-Ferrand , France
| | - Rosyne Lagrafeuille
- a Université Clermont Auvergne, Université Blaise Pascal, GReD , BP 10448 , Clermont-Ferrand , France.,b CNRS, UMR6293, GReD , Clermont-Ferrand , France.,c Inserm, UMR1103, GReD , Clermont-Ferrand , France
| | - Corinne Lours-Calet
- a Université Clermont Auvergne, Université Blaise Pascal, GReD , BP 10448 , Clermont-Ferrand , France.,b CNRS, UMR6293, GReD , Clermont-Ferrand , France.,c Inserm, UMR1103, GReD , Clermont-Ferrand , France
| | - Cyrille de Joussineau
- a Université Clermont Auvergne, Université Blaise Pascal, GReD , BP 10448 , Clermont-Ferrand , France.,b CNRS, UMR6293, GReD , Clermont-Ferrand , France.,c Inserm, UMR1103, GReD , Clermont-Ferrand , France
| | - Gaëlle Loubeau-Legros
- a Université Clermont Auvergne, Université Blaise Pascal, GReD , BP 10448 , Clermont-Ferrand , France.,b CNRS, UMR6293, GReD , Clermont-Ferrand , France.,c Inserm, UMR1103, GReD , Clermont-Ferrand , France
| | - Cédric Chaveroux
- d Inserm U1052, CNRS UMR5286, Center de Recherche en Cancérologie de Lyon , Lyon , France
| | - Jean-Paul Saru
- a Université Clermont Auvergne, Université Blaise Pascal, GReD , BP 10448 , Clermont-Ferrand , France.,b CNRS, UMR6293, GReD , Clermont-Ferrand , France.,c Inserm, UMR1103, GReD , Clermont-Ferrand , France
| | - Silvère Baron
- a Université Clermont Auvergne, Université Blaise Pascal, GReD , BP 10448 , Clermont-Ferrand , France.,b CNRS, UMR6293, GReD , Clermont-Ferrand , France.,c Inserm, UMR1103, GReD , Clermont-Ferrand , France
| | - Laurent Morel
- a Université Clermont Auvergne, Université Blaise Pascal, GReD , BP 10448 , Clermont-Ferrand , France.,b CNRS, UMR6293, GReD , Clermont-Ferrand , France.,c Inserm, UMR1103, GReD , Clermont-Ferrand , France
| | - Claude Beaudoin
- a Université Clermont Auvergne, Université Blaise Pascal, GReD , BP 10448 , Clermont-Ferrand , France.,b CNRS, UMR6293, GReD , Clermont-Ferrand , France.,c Inserm, UMR1103, GReD , Clermont-Ferrand , France
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49
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Pfister AS, Kühl M. Of Wnts and Ribosomes. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2018; 153:131-155. [PMID: 29389514 DOI: 10.1016/bs.pmbts.2017.11.006] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Wnt proteins are secreted glycoproteins that activate different intracellular signal transduction pathways. They regulate cell proliferation and are required for proper embryonic development. Misregulation of Wnt signaling can result in various diseases including cancer. In most circumstances, cell growth is essential for cell division and thus cell proliferation. Therefore, several reports have highlighted the key role of Wnt proteins for cell growth. Ribosomes represent the cellular protein synthesis machinery and cells need to be equipped with an appropriate number of ribosomes to allow cell growth. Recent findings suggest a role for Wnt proteins in regulating ribosome biogenesis and we here summarize these findings representing a previously unknown function of Wnt proteins. Understanding this role of Wnt signaling might open new avenues to slow down proliferation by drugs for instance in cancer therapy.
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Affiliation(s)
- Astrid S Pfister
- Institute of Biochemistry and Molecular Biology, Ulm University, Ulm, Germany.
| | - Michael Kühl
- Institute of Biochemistry and Molecular Biology, Ulm University, Ulm, Germany
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50
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De Clara E, Gourvest M, Ma H, Vergez F, Tosolini M, Dejean S, Demur C, Delabesse E, Recher C, Touriol C, Martelli MP, Falini B, Brousset P, Bousquet M. Long non-coding RNA expression profile in cytogenetically normal acute myeloid leukemia identifies a distinct signature and a new biomarker in NPM1-mutated patients. Haematologica 2017; 102:1718-1726. [PMID: 28679652 PMCID: PMC5622856 DOI: 10.3324/haematol.2017.171645] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2017] [Accepted: 06/22/2017] [Indexed: 12/13/2022] Open
Abstract
Long non-coding RNAs are defined as transcripts larger than 200 nucleotides but without protein-coding potential. There is growing evidence of the important role of long non-coding RNAs in cancer initiation, development and progression. In this study, we sought to evaluate the long non-coding RNA expression profile of patients with cytogenetically normal acute myeloid leukemia (AML). RNA-sequencing of 40 cytogenetically normal AML patients allowed us to quantify 11,036 long non-coding RNAs. Among these, more than 8000 were previously undescribed long non-coding RNAs. Using unsupervised analysis, we observed a specific long non-coding RNA expression profile dependent on the mutational status of the NPM1 gene. Statistical analysis allowed us to identify a minimal set of 12 long non-coding RNAs capable of discriminating NPM1-mutated from NPM1-wild-type patients. These results were validated by qRT-PCR on an independent cohort composed of 134 cytogenetically normal AML patients. Furthermore, we have identified one putative biomarker, the long non-coding RNA XLOC_109948 whose expression pattern predicts clinical outcome. Interestingly, low XLOC_109948 expression indicates a good prognosis especially for NPM1-mutated patients. Transient transfection of GapmeR against XLOC_109948 in NPM1-mutated OCI-AML3 cell line treated with Ara-C or ATRA enhances apoptosis suggesting XLOC_109948 plays a role in drug sensitivity. This study improves our knowledge of the long non-coding RNA transcriptome in cytogenetically normal AML patients. We observed a distinct long non-coding RNA expression profile in patients with the NPM1 mutation. The newly identified XLOC_109948 long non-coding RNA emerged as a strong prognostic factor able to better stratify NPM1-mutated patients.
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Affiliation(s)
- Etienne De Clara
- Cancer Research Center of Toulouse (CRCT), UMR1037 Inserm/Université Toulouse III Paul Sabatier, ERL5294 CNRS, Laboratoire d'Excellence Toulouse Cancer (TOUCAN), France
| | - Morgane Gourvest
- Cancer Research Center of Toulouse (CRCT), UMR1037 Inserm/Université Toulouse III Paul Sabatier, ERL5294 CNRS, Laboratoire d'Excellence Toulouse Cancer (TOUCAN), France
| | | | - François Vergez
- Cancer Research Center of Toulouse (CRCT), UMR1037 Inserm/Université Toulouse III Paul Sabatier, ERL5294 CNRS, Laboratoire d'Excellence Toulouse Cancer (TOUCAN), France.,Laboratoire et Service d'Hématologie, Centre Hospitalier Universitaire de Toulouse, Institut Universitaire du Cancer, France
| | - Marie Tosolini
- Cancer Research Center of Toulouse (CRCT), UMR1037 Inserm/Université Toulouse III Paul Sabatier, ERL5294 CNRS, Laboratoire d'Excellence Toulouse Cancer (TOUCAN), France
| | - Sébastien Dejean
- Institut de Mathématiques de Toulouse, UMR 5219 Université de Toulouse/CNRS Université Paul Sabatier, France
| | - Cécile Demur
- Cancer Research Center of Toulouse (CRCT), UMR1037 Inserm/Université Toulouse III Paul Sabatier, ERL5294 CNRS, Laboratoire d'Excellence Toulouse Cancer (TOUCAN), France.,Laboratoire et Service d'Hématologie, Centre Hospitalier Universitaire de Toulouse, Institut Universitaire du Cancer, France
| | - Eric Delabesse
- Cancer Research Center of Toulouse (CRCT), UMR1037 Inserm/Université Toulouse III Paul Sabatier, ERL5294 CNRS, Laboratoire d'Excellence Toulouse Cancer (TOUCAN), France.,Laboratoire et Service d'Hématologie, Centre Hospitalier Universitaire de Toulouse, Institut Universitaire du Cancer, France
| | - Christian Recher
- Cancer Research Center of Toulouse (CRCT), UMR1037 Inserm/Université Toulouse III Paul Sabatier, ERL5294 CNRS, Laboratoire d'Excellence Toulouse Cancer (TOUCAN), France.,Laboratoire et Service d'Hématologie, Centre Hospitalier Universitaire de Toulouse, Institut Universitaire du Cancer, France
| | - Christian Touriol
- Cancer Research Center of Toulouse (CRCT), UMR1037 Inserm/Université Toulouse III Paul Sabatier, ERL5294 CNRS, Laboratoire d'Excellence Toulouse Cancer (TOUCAN), France
| | - Maria Paola Martelli
- Institute of Hematology, University of Perugia, Ospedale S. Maria della Misericordia, Italy
| | - Brunangelo Falini
- Institute of Hematology, University of Perugia, Ospedale S. Maria della Misericordia, Italy
| | - Pierre Brousset
- Cancer Research Center of Toulouse (CRCT), UMR1037 Inserm/Université Toulouse III Paul Sabatier, ERL5294 CNRS, Laboratoire d'Excellence Toulouse Cancer (TOUCAN), France.,Department of Pathology, Institut Universitaire du Cancer de Toulouse-Oncopole and Centre Hospitalier Universitaire de Toulouse, France
| | - Marina Bousquet
- Cancer Research Center of Toulouse (CRCT), UMR1037 Inserm/Université Toulouse III Paul Sabatier, ERL5294 CNRS, Laboratoire d'Excellence Toulouse Cancer (TOUCAN), France
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