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Pérez-Villegas EM, Ruiz R, Bachiller S, Ventura F, Armengol JA, Rosa JL. The HERC proteins and the nervous system. Semin Cell Dev Biol 2022; 132:5-15. [PMID: 34848147 DOI: 10.1016/j.semcdb.2021.11.017] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 11/15/2021] [Accepted: 11/16/2021] [Indexed: 12/14/2022]
Abstract
The HERC protein family is one of three subfamilies of Homologous to E6AP C-terminus (HECT) E3 ubiquitin ligases. Six HERC genes have been described in humans, two of which encode Large HERC proteins -HERC1 and HERC2- with molecular weights above 520 kDa that are constitutively expressed in the brain. There is a large body of evidence that mutations in these Large HERC genes produce clinical syndromes in which key neurodevelopmental events are altered, resulting in intellectual disability and other neurological disorders like epileptic seizures, dementia and/or signs of autism. In line with these consequences in humans, two mice carrying mutations in the Large HERC genes have been studied quite intensely: the tambaleante mutant for Herc1 and the Herc2+/530 mutant for Herc2. In both these mutant mice there are clear signs that autophagy is dysregulated, eliciting cerebellar Purkinje cell death and impairing motor control. The tambaleante mouse was the first of these mice to appear and is the best studied, in which the Herc1 mutation elicits: (i) delayed neural transmission in the peripheral nervous system; (ii) impaired learning, memory and motor control; and (iii) altered presynaptic membrane dynamics. In this review, we discuss the information currently available on HERC proteins in the nervous system and their biological activity, the dysregulation of which could explain certain neurodevelopmental syndromes and/or neurodegenerative diseases.
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Affiliation(s)
- Eva M Pérez-Villegas
- Department of Physiology, Anatomy and Cell Biology, University Pablo de Olavide, Seville, Spain
| | - Rocío Ruiz
- Department of Biochemistry and Molecular Biology, School of Pharmacy, University of Seville, Seville, Spain
| | - Sara Bachiller
- Clinical Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Sevilla, Virgen del Rocío University Hospital, CSIC, University of Sevilla, Sevilla, Spain
| | - Francesc Ventura
- Departament de Ciències Fisiològiques, IBIDELL, Universitat de Barcelona, L'Hospitalet de Llobregat, Barcelona, Spain
| | - Jose A Armengol
- Department of Physiology, Anatomy and Cell Biology, University Pablo de Olavide, Seville, Spain.
| | - Jose Luis Rosa
- Departament de Ciències Fisiològiques, IBIDELL, Universitat de Barcelona, L'Hospitalet de Llobregat, Barcelona, Spain.
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2
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Lalonde R, Strazielle C. The Herc1 gene in neurobiology. Gene X 2022; 814:146144. [PMID: 34990797 DOI: 10.1016/j.gene.2021.146144] [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: 10/11/2021] [Revised: 11/19/2021] [Accepted: 12/21/2021] [Indexed: 11/04/2022] Open
Abstract
The function of the HERC1 gene has mainly been delineated by studying Herc1tbl (tambaleante) mutant mice, characterized by losses in cerebellar Purkinje cells, a lower number of synaptic vesicles in the hippocampus, and anomalies in climbing fiber projections from the inferior olive as well as alpha-motoneuron projections to the skeletal muscle. The salient behavioral phenotypes include cerebellar ataxia, a loss in motor coordination, muscle weakness, and spatial deficits. Similar neuropathological and behavioral profiles have been described in childhood-onset subjects with HERC1 variants, including cerebellar ataxia and hypotonia.
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Affiliation(s)
- Robert Lalonde
- University of Rouen, Dept Psychology, 76821 Mont-Saint-Aignan, France; Laboratory of Stress, Immunity, Pathogens (EA7300), University of Lorraine Medical School, Vandœuvre-les-Nancy, France.
| | - Catherine Strazielle
- Laboratory of Stress, Immunity, Pathogens (EA7300), University of Lorraine Medical School, Vandœuvre-les-Nancy, France; CHRU Nancy, Vandœuvre-les-Nancy, France
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3
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Zavodszky E, Peak-Chew SY, Juszkiewicz S, Narvaez AJ, Hegde RS. Identification of a quality-control factor that monitors failures during proteasome assembly. Science 2021; 373:998-1004. [PMID: 34446601 DOI: 10.1126/science.abc6500] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 06/22/2021] [Accepted: 07/15/2021] [Indexed: 12/11/2022]
Abstract
In eukaryotic cells, half of all proteins function as subunits within multiprotein complexes. Imbalanced synthesis of subunits leads to unassembled intermediates that must be degraded to minimize cellular toxicity. Here, we found that excess PSMC5, a subunit of the proteasome base, was targeted for degradation by the HERC1 ubiquitin ligase in mammalian cells. HERC1 identified unassembled PSMC5 by its cognate assembly chaperone PAAF1. Because PAAF1 only dissociates after assembly, HERC1 could also engage later assembly intermediates such as the PSMC4-PSMC5-PAAF1 complex. A missense mutant of HERC1 that causes neurodegeneration in mice was impaired in the recognition and ubiquitination of the PSMC5-PAAF1 complex. Thus, proteasome assembly factors can serve as adaptors for ubiquitin ligases to facilitate elimination of unassembled intermediates and maintain protein homeostasis.
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4
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Li H, Wang F, Guo X, Jiang Y. Decreased MEF2A Expression Regulated by Its Enhancer Methylation Inhibits Autophagy and May Play an Important Role in the Progression of Alzheimer's Disease. Front Neurosci 2021; 15:682247. [PMID: 34220439 PMCID: PMC8242211 DOI: 10.3389/fnins.2021.682247] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Accepted: 05/12/2021] [Indexed: 12/29/2022] Open
Abstract
Alzheimer's disease (AD) is a neurodegenerative disease characterized by amyloid plaques and neurofibrillary tangles which significantly affects people's life quality. Recently, AD has been found to be closely related to autophagy. The aim of this study was to identify autophagy-related genes associated with the pathogenesis of AD from multiple types of microarray and sequencing datasets using bioinformatics methods and to investigate their role in the pathogenesis of AD in order to identify novel strategies to prevent and treat AD. Our results showed that the autophagy-related genes were significantly downregulated in AD and correlated with the pathological progression. Furthermore, enrichment analysis showed that these autophagy-related genes were regulated by the transcription factor myocyte enhancer factor 2A (MEF2A), which had been confirmed using si-MEF2A. Moreover, the single-cell sequencing data suggested that MEF2A was highly expressed in microglia. Methylation microarray analysis showed that the methylation level of the enhancer region of MEF2A in AD was significantly increased. In conclusion, our results suggest that AD related to the increased methylation level of MEF2A enhancer reduces the expression of MEF2A and downregulates the expression of autophagy-related genes which are closely associated with AD pathogenesis, thereby inhibiting autophagy.
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Affiliation(s)
- Hui Li
- Tianjin Institute of Environmental and Operational Medicine, Tianjin, China
| | - Feng Wang
- Tianjin Institute of Environmental and Operational Medicine, Tianjin, China
| | - Xuqi Guo
- Tianjin Institute of Environmental and Operational Medicine, Tianjin, China
| | - Yugang Jiang
- Tianjin Institute of Environmental and Operational Medicine, Tianjin, China
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5
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Limanaqi F, Biagioni F, Salvetti A, Puglisi-Allegra S, Lenzi P, Fornai F. Morphology, clearing efficacy, and mTOR dependency of the organelle autophagoproteasome. Eur J Histochem 2021; 65. [PMID: 34060734 PMCID: PMC8200839 DOI: 10.4081/ejh.2021.3220] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Accepted: 05/01/2021] [Indexed: 01/18/2023] Open
Abstract
The interplay between autophagy (ATG) and ubiquitin proteasome (UP) cell-clearing systems was recently evidenced at biochemical and morphological levels, where subunits belonging to both pathways co-localize within a novel organelle named autophagoproteasome (APP). We previously documented that APP occurs at baseline conditions, while it is hindered by neurotoxicant administration. This is bound to the activity of the mechanistic target of rapamycin (mTOR), since APP is stimulated by mTOR inhibition, which in turn, is correlated with cell protection. In this brief report, we provide novel morphological and biochemical evidence on APP, suggesting the presence of active UP subunits within ATG vacuoles. Although a stream of interpretation considers such a merging as a catabolic pathway to clear inactive UP subunits, our data further indicate that UP-ATG merging may rather provide an empowered catalytic organelle.
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Affiliation(s)
- Fiona Limanaqi
- Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa.
| | | | | | | | - Paola Lenzi
- Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa.
| | - Francesco Fornai
- Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa; IRCCS Neuromed, Pozzilli (IS).
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Pérez-Villegas EM, Pérez-Rodríguez M, Negrete-Díaz JV, Ruiz R, Rosa JL, de Toledo GA, Rodríguez-Moreno A, Armengol JA. HERC1 Ubiquitin Ligase Is Required for Hippocampal Learning and Memory. Front Neuroanat 2020; 14:592797. [PMID: 33328904 PMCID: PMC7710975 DOI: 10.3389/fnana.2020.592797] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Accepted: 10/23/2020] [Indexed: 11/23/2022] Open
Abstract
Mutations in the human HERC1 E3 ubiquitin ligase protein develop intellectual disability. The tambaleante (tbl) mouse carries a HERC1 mutation characterized by cerebellar ataxia due of adult cerebellar Purkinje cells death by extensive autophagy. Our previous studies demonstrated that both the neuromuscular junction and the peripheral nerve myelin sheaths are also affected in this mutant. Moreover, there are signs of dysregulated autophagy in the central nervous system in the tbl mouse, affecting spinal cord motor neurons, and pyramidal neurons of the neocortex and the hippocampal CA3 region. The tbl mutation affects associative learning, with absence of short- and long-term potentiation in the lateral amygdala, altered spinogenesis in their neurons, and a dramatic decrease in their glutamatergic input. To assess whether other brain areas engaged in learning processes might be affected by the tbl mutation, we have studied the tbl hippocampus using behavioral tests, ex vivo electrophysiological recordings, immunohistochemistry, the Golgi-Cox method and transmission electron microscopy. The tbl mice performed poorly in the novel-object recognition, T-maze and Morris water maze tests. In addition, there was a decrease in glutamatergic input while the GABAergic one remains unaltered in the hippocampal CA1 region of tbl mice, accompanied by changes in the dendritic spines, and signs of cellular damage. Moreover, the proportions of immature and mature neurons in the dentate gyrus of the tbl hippocampus differ relative to the control mice. Together, these observations demonstrate the important role of HERC1 in regulating synaptic activity during learning.
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Affiliation(s)
- Eva M. Pérez-Villegas
- Department of Physiology, Anatomy and Cell Biology, Universidad Pablo de Olavide, Seville, Spain
| | - Mikel Pérez-Rodríguez
- Department of Physiology, Anatomy and Cell Biology, Universidad Pablo de Olavide, Seville, Spain
| | - José V. Negrete-Díaz
- Department of Physiology, Anatomy and Cell Biology, Universidad Pablo de Olavide, Seville, Spain
- División de Ciencias de la Salud e Ingenierías, Universidad de Guanajuato, Guanajuato, Mexico
| | - Rocío Ruiz
- Department of Biochemistry and Molecular Biology, School of Pharmacy, University of Seville, Seville, Spain
- Instituto de Biomedicina de Sevilla-Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Seville, Spain
| | - Jose Luis Rosa
- Departament de Ciències Fisiològiques, IBIDELL, Universitat de Barcelona, Barcelona, Spain
| | | | - Antonio Rodríguez-Moreno
- Department of Physiology, Anatomy and Cell Biology, Universidad Pablo de Olavide, Seville, Spain
| | - José A. Armengol
- Department of Physiology, Anatomy and Cell Biology, Universidad Pablo de Olavide, Seville, Spain
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Schwarz JM, Pedrazza L, Stenzel W, Rosa JL, Schuelke M, Straussberg R. A new homozygous HERC1 gain-of-function variant in MDFPMR syndrome leads to mTORC1 hyperactivation and reduced autophagy during cell catabolism. Mol Genet Metab 2020; 131:126-134. [PMID: 32921582 DOI: 10.1016/j.ymgme.2020.08.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 08/27/2020] [Accepted: 08/28/2020] [Indexed: 10/23/2022]
Abstract
The giant 532 kDa HERC1 protein is a ubiquitin ligase that interacts with tuberous sclerosis complex subunit 2 (TSC2), a negative upstream regulator of the mammalian target of rapamycin complex 1 (mTORC1). TSC2 regulates anabolic cell growth through its influence on protein synthesis, cell growth, proliferation, autophagy, and differentiation. TSC subunit 1 (TSC1) stabilizes TSC2 by inhibiting the interaction between TSC2 and HERC1, forming a TSC1-TSC2 complex that negatively regulates mTORC1. HERC1-TSC2 interaction destabilizes and degrades TSC2. Recessive mutations in HERC1 have been reported in patients with intellectual disability. Some patients exhibit epilepsy, macrocephaly, somatic overgrowth, and dysmorphic facial features as well. Here we describe two sisters from a consanguineous marriage with a novel homozygous missense variant in the C-terminal HECT domain of HERC1 [chr15:g63,907,989C>G GRCh37.p11 | c.14,072G>C NM_003922 | p.(Arg4,691Pro)]. Symptoms compris global developmental delay, macrocephaly, somatic overgrowth, intellectual disability, seizures, schizoaffective disorder, and pyramidal tract signs. We functionally assessed the HERC1 mutation by investigation of patient and control fibroblasts under normal and nutrient starving conditions. During catabolic state, mTORC1 activity remained high in patient fibroblasts, which stands in stark contrast to its downregulation in controls. This was corroborated by an abnormally high phosphorylation of S6K1-kinase, a direct downstream target of mTORC1, in patients. Moreover, autophagy, usually enhanced in catabolic states, was down-regulated in patient fibroblasts. These data confirm that the missense variant found in both patients results in a gain-of-function for the mutant HERC1 protein.
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Affiliation(s)
- Jana Marie Schwarz
- NeuroCure Cluster of Excellence, Charité-Universitätsmedizin Berlin, Corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Germany; Department of Neuropediatrics, Charité-Universitätsmedizin Berlin, Corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Germany
| | - Leonardo Pedrazza
- Departament de Ciències Fisiològiques, Institut d'Investigació de Bellvitge (IDIBELL), Universitat de Barcelona, L'Hospitalet de Llobregat, Barcelona, Spain
| | - Werner Stenzel
- Department of Neuropathology, Charité-Universitätsmedizin Berlin, Corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Germany
| | - Jose Luis Rosa
- Departament de Ciències Fisiològiques, Institut d'Investigació de Bellvitge (IDIBELL), Universitat de Barcelona, L'Hospitalet de Llobregat, Barcelona, Spain
| | - Markus Schuelke
- NeuroCure Cluster of Excellence, Charité-Universitätsmedizin Berlin, Corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Germany; Department of Neuropediatrics, Charité-Universitätsmedizin Berlin, Corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Germany.
| | - Rachel Straussberg
- Schneider Children's Medical Center, Petach Tikva, Israel; Department of Child Neurology, Neurogenetic Service, Affiliated to Sackler School of Medicine, Tel Aviv University, Ramat Aviv, Israel.
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8
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Montes-Fernández MA, Pérez-Villegas EM, Garcia-Gonzalo FR, Pedrazza L, Rosa JL, de Toledo GA, Armengol JA. The HERC1 ubiquitin ligase regulates presynaptic membrane dynamics of central synapses. Sci Rep 2020; 10:12057. [PMID: 32694577 PMCID: PMC7374096 DOI: 10.1038/s41598-020-68970-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Accepted: 07/03/2020] [Indexed: 12/12/2022] Open
Abstract
HERC1 is a ubiquitin ligase protein, which, when mutated, induces several malformations and intellectual disability in humans. The animal model of HERC1 mutation is the mouse tambaleante characterized by: (1) overproduction of the protein; (2) cerebellar Purkinje cells death by autophagy; (3) dysregulation of autophagy in spinal cord motor neurons, and CA3 and neocortical pyramidal neurons; (4) impairment of associative learning, linked to altered spinogenesis and absence of LTP in the lateral amygdala; and, (5) motor impairment due to delayed action potential transmission, decrease synaptic transmission efficiency and altered myelination in the peripheral nervous system. To investigate the putative role of HERC1 in the presynaptic dynamics we have performed a series of experiments in cultured tambaleante hippocampal neurons by using transmission electron microscopy, FM1-43 destaining and immunocytochemistry. Our results show: (1) a decrease in the number of synaptic vesicles; (2) reduced active zones; (3) less clathrin immunoreactivity and less presynaptic endings over the hippocampal main dendritic trees; which contrast with (4) a greater number of endosomes and autophagosomes in the presynaptic endings of the tambaleante neurons relative to control ones. Altogether these results show an important role of HERC1 in the regulation of presynaptic membrane dynamics.
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Affiliation(s)
| | - Eva Mª Pérez-Villegas
- Department of Physiology, Anatomy and Cell Biology, University Pablo de Olavide, Seville, Spain
| | | | - Leonardo Pedrazza
- Department of Physiological Sciences, IDIBELL, University of Barcelona, Barcelona, Spain
| | - Jose Luis Rosa
- Department of Physiological Sciences, IDIBELL, University of Barcelona, Barcelona, Spain
| | | | - José A Armengol
- Department of Physiology, Anatomy and Cell Biology, University Pablo de Olavide, Seville, Spain.
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9
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Promiscuous Roles of Autophagy and Proteasome in Neurodegenerative Proteinopathies. Int J Mol Sci 2020; 21:ijms21083028. [PMID: 32344772 PMCID: PMC7215558 DOI: 10.3390/ijms21083028] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2020] [Revised: 04/22/2020] [Accepted: 04/23/2020] [Indexed: 12/12/2022] Open
Abstract
Alterations in autophagy and the ubiquitin proteasome system (UPS) are commonly implicated in protein aggregation and toxicity which manifest in a number of neurological disorders. In fact, both UPS and autophagy alterations are bound to the aggregation, spreading and toxicity of the so-called prionoid proteins, including alpha synuclein (α-syn), amyloid-beta (Aβ), tau, huntingtin, superoxide dismutase-1 (SOD-1), TAR-DNA-binding protein of 43 kDa (TDP-43) and fused in sarcoma (FUS). Recent biochemical and morphological studies add to this scenario, focusing on the coordinated, either synergistic or compensatory, interplay that occurs between autophagy and the UPS. In fact, a number of biochemical pathways such as mammalian target of rapamycin (mTOR), transcription factor EB (TFEB), Bcl2-associated athanogene 1/3 (BAG3/1) and glycogen synthase kinase beta (GSk3β), which are widely explored as potential targets in neurodegenerative proteinopathies, operate at the crossroad between autophagy and UPS. These biochemical steps are key in orchestrating the specificity and magnitude of the two degradation systems for effective protein homeostasis, while intermingling with intracellular secretory/trafficking and inflammatory pathways. The findings discussed in the present manuscript are supposed to add novel viewpoints which may further enrich our insight on the complex interactions occurring between cell-clearing systems, protein misfolding and propagation. Discovering novel mechanisms enabling a cross-talk between the UPS and autophagy is expected to provide novel potential molecular targets in proteinopathies.
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10
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Luo X, Zhou Y, Zhang B, Zhang Y, Wang X, Feng T, Li Z, Cui K, Wang Z, Luo C, Li H, Deng Y, Lu F, Han J, Miao Y, Mao H, Yi X, Ai C, Wu S, Li A, Wu Z, Zhuo Z, Da Giang D, Mitra B, Vahidi MF, Mansoor S, Al-Bayatti SA, Sari EM, Gorkhali NA, Prastowo S, Shafique L, Ye G, Qian Q, Chen B, Shi D, Ruan J, Liu Q. Understanding divergent domestication traits from the whole-genome sequencing of swamp- and river-buffalo populations. Natl Sci Rev 2020; 7:686-701. [PMID: 34692087 PMCID: PMC8289072 DOI: 10.1093/nsr/nwaa024] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Revised: 12/27/2019] [Accepted: 02/12/2020] [Indexed: 01/01/2023] Open
Abstract
Abstract
Domesticated buffaloes have been integral to rice-paddy agro-ecosystems for millennia, yet relatively little is known about the buffalo genomics. Here, we sequenced and assembled reference genomes for both swamp and river buffaloes and we re-sequenced 230 individuals (132 swamp buffaloes and 98 river buffaloes) sampled from across Asia and Europe. Beyond the many actionable insights that our study revealed about the domestication, basic physiology and breeding of buffalo, we made the striking discovery that the divergent domestication traits between swamp and river buffaloes can be explained with recent selections of genes on social behavior, digestion metabolism, strengths and milk production.
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Affiliation(s)
- Xier Luo
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, Nanning 530005, China
| | - Yu Zhou
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, Nanning 530005, China
| | - Bing Zhang
- CAS Key Laboratory of Genome Sciences and Information, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing 100101, China
| | - Yi Zhang
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, China Agricultural University, Beijing 100083, China
| | - Xiaobo Wang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, Nanning 530005, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
| | - Tong Feng
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, Nanning 530005, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
| | - Zhipeng Li
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, Nanning 530005, China
| | - Kuiqing Cui
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, Nanning 530005, China
| | - Zhiqiang Wang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, Nanning 530005, China
| | - Chan Luo
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, Nanning 530005, China
| | - Hui Li
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, Nanning 530005, China
| | - Yanfei Deng
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, Nanning 530005, China
| | - Fenghua Lu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, Nanning 530005, China
| | - Jianlin Han
- CAAS-ILRI Joint Laboratory on Livestock and Forage Genetic Resources, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China
- International Livestock Research Institute, Nairobi 00100, Kenya
| | - Yongwang Miao
- Faculty of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Huaming Mao
- Faculty of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Xiaoyan Yi
- Guangdong Laboratory for Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
| | - Cheng Ai
- Guangdong Laboratory for Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
| | - Shigang Wu
- Guangdong Laboratory for Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
| | - Alun Li
- Guangdong Laboratory for Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
| | - Zhichao Wu
- Guangdong Laboratory for Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
| | - Zijun Zhuo
- Guangdong Laboratory for Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
| | - Do Da Giang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, Nanning 530005, China
- Bacgiang Agriculture and Forestry University, Bacgiang 230000, Vietnam
| | - Bikash Mitra
- Cellular Immunology Lab, Department of Zoology, University of North Bengal, Siligun 734013, India
| | - Mohammad Farhad Vahidi
- Animal Biotechnology Department, Agricultural Biotechnology Research Institute of Iran-North Region, Agricultural Research, Education and Extension Organization, Rasht 999067, Iran
| | - Shahid Mansoor
- National Institute for Biotechnology and Genetic Engineering, Faisalabad 999010, Pakistan
| | - Sahar Ahmed Al-Bayatti
- Animal Genetic Sources Department, Directorate of Animal Resources, Ministry of Agriculture, Baghdad 19207, Iraq
| | - Eka Meutia Sari
- Department of Animal Science, Faculty of Agriculture, Syiah Kuala University, Darussalam-Banda Aceh 23111, Indonesia
| | - Neena Amatya Gorkhali
- Animal Breeding Division, National Animal Science Research Institute, Nepal Agriculture Research Council, Khumaltar 999098, Nepal
| | - Sigit Prastowo
- Animal Science Department Universitas Sebelas Maret, Surakarta 999006, Indonesia
| | - Laiba Shafique
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, Nanning 530005, China
| | - Guoyou Ye
- International Rice Research Institute, Manila 999005, Philippines
| | - Qian Qian
- Guangdong Laboratory for Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
| | - Baoshan Chen
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, Nanning 530005, China
| | - Deshun Shi
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, Nanning 530005, China
| | - Jue Ruan
- Guangdong Laboratory for Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
| | - Qingyou Liu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, Nanning 530005, China
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11
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García-Cano J, Martinez-Martinez A, Sala-Gaston J, Pedrazza L, Rosa JL. HERCing: Structural and Functional Relevance of the Large HERC Ubiquitin Ligases. Front Physiol 2019; 10:1014. [PMID: 31447701 PMCID: PMC6692442 DOI: 10.3389/fphys.2019.01014] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Accepted: 07/23/2019] [Indexed: 12/12/2022] Open
Abstract
Homologous to the E6AP carboxyl terminus (HECT) and regulator of chromosome condensation 1 (RCC1)-like domain-containing proteins (HERCs) belong to the superfamily of ubiquitin ligases. HERC proteins are divided into two subfamilies, Large and Small HERCs. Despite their similarities in terms of both structure and domains, these subfamilies are evolutionarily very distant and result from a convergence phenomenon rather than from a common origin. Large HERC genes, HERC1 and HERC2, are present in most metazoan taxa. They encode very large proteins (approximately 5,000 amino acid residues in a single polypeptide chain) that contain more than one RCC1-like domain as a structural characteristic. Accumulating evidences show that these unusually large proteins play key roles in a wide range of cellular functions which include neurodevelopment, DNA damage repair, and cell proliferation. To better understand the origin, evolution, and function of the Large HERC family, this minireview provides with an integrated overview of their structure and function and details their physiological implications. This study also highlights and discusses how dysregulation of these proteins is associated with severe human diseases such as neurological disorders and cancer.
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Affiliation(s)
- Jesús García-Cano
- Ubiquitylation and Cell Signalling Lab, IDIBELL, Departament de Ciències Fisiològiques, Universitat de Barcelona, Barcelona, Spain
| | - Arturo Martinez-Martinez
- Ubiquitylation and Cell Signalling Lab, IDIBELL, Departament de Ciències Fisiològiques, Universitat de Barcelona, Barcelona, Spain
| | - Joan Sala-Gaston
- Ubiquitylation and Cell Signalling Lab, IDIBELL, Departament de Ciències Fisiològiques, Universitat de Barcelona, Barcelona, Spain
| | - Leonardo Pedrazza
- Ubiquitylation and Cell Signalling Lab, IDIBELL, Departament de Ciències Fisiològiques, Universitat de Barcelona, Barcelona, Spain
| | - Jose Luis Rosa
- Ubiquitylation and Cell Signalling Lab, IDIBELL, Departament de Ciències Fisiològiques, Universitat de Barcelona, Barcelona, Spain
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12
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Lu C, Sun X, Li N, Wang W, Kuang D, Tong P, Han Y, Dai J. CircRNAs in the tree shrew ( Tupaia belangeri) brain during postnatal development and aging. Aging (Albany NY) 2019; 10:833-852. [PMID: 29723158 PMCID: PMC5940110 DOI: 10.18632/aging.101437] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Accepted: 04/23/2018] [Indexed: 12/13/2022]
Abstract
Circular RNAs (circRNAs) are a novel type of non-coding RNA expressed across different species and tissues. At present, little is known about the expression and function of circRNAs in the tree shrew brain. In this study, we used RNA-seq to identify 35,007 circRNAs in hippocampus and cerebellum samples from infant (aged 47-52 days), young (aged 15-18 months), and old (aged 78-86 months) tree shrews. We observed no significant changes in the total circRNA expression profiles in different brain regions over time. However, circRNA tended to be downregulated in the cerebellum over time. Real-time RT-PCR analysis verified the presence of circRNAs. KEGG analysis indicated the occurrence of ubiquitin-mediated proteolysis, the MAPK signaling pathway, phosphatidylinositol signaling system, long-term depression, the rap1 signaling pathway, and long-term potentiation in both brain regions. We also observed that 29,087 (83.1%) tree shrew circRNAs shared homology with human circRNAs. The competing endogenous RNA networks suggested novel_circRNA_007362 potential functions as a 24-miRNAs sponge to regulate UBE4B expression. Thus, we obtained comprehensive circRNA expression profiles in the tree shrew brain during postnatal development and aging, which might help to elucidate the functions of circRNAs during brain aging and in age-related diseases.
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Affiliation(s)
- CaiXia Lu
- Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, Kunming, China.,Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, Kunming, China.,Yunnan Innovation Team of Standardization and Application Research in Tree Shrew, Kunming, China
| | - XiaoMei Sun
- Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, Kunming, China.,Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, Kunming, China.,Yunnan Innovation Team of Standardization and Application Research in Tree Shrew, Kunming, China
| | - Na Li
- Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, Kunming, China.,Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, Kunming, China
| | - WenGuang Wang
- Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, Kunming, China.,Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, Kunming, China
| | - DeXuan Kuang
- Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, Kunming, China
| | - PinFen Tong
- Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, Kunming, China.,Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, Kunming, China
| | - YuanYuan Han
- Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, Kunming, China
| | - JieJie Dai
- Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, Kunming, China.,Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, Kunming, China.,Yunnan Innovation Team of Standardization and Application Research in Tree Shrew, Kunming, China
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13
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Schneider T, Martinez-Martinez A, Cubillos-Rojas M, Bartrons R, Ventura F, Rosa JL. The E3 ubiquitin ligase HERC1 controls the ERK signaling pathway targeting C-RAF for degradation. Oncotarget 2018; 9:31531-31548. [PMID: 30140388 PMCID: PMC6101136 DOI: 10.18632/oncotarget.25847] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Accepted: 07/12/2018] [Indexed: 12/14/2022] Open
Abstract
The RAF/MEK/ERK cascade is a conserved intracellular signaling pathway that controls fundamental cellular processes including growth, proliferation, differentiation, survival and migration. Aberrant regulation of this signaling pathway has long been associated with human cancers. A major point of regulation of this pathway occurs at the level of the serine/threonine protein kinase C-RAF. Here, we show how the E3 ubiquitin ligase HERC1 regulates ERK signaling. HERC1 knockdown induced cellular proliferation, which is associated with an increase in ERK phosphorylation and in C-RAF protein levels. We demonstrate that overexpression of wild-type C-RAF is sufficient to increase ERK phosphorylation. Experiments with pharmacological inhibitors of RAF activity, or with interference RNA, show that the regulation of ERK phosphorylation by HERC1 is RAF-dependent. Immunoprecipitation, pull-down and confocal fluorescence microscopy experiments demonstrate an interaction between HERC1 and C-RAF proteins. Mechanistically, HERC1 controls C-RAF stability by regulating its polyubiquitylation in a lysine 48-linked chain. In vitro ubiquitylation assays indicate that C-RAF is a substrate of the E3 ubiquitin ligase HERC1. Altogether, we show how HERC1 can regulate cell proliferation through the activation of ERK signaling by a mechanism that affects C-RAF’s stability.
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Affiliation(s)
- Taiane Schneider
- Departament de Ciències Fisiològiques, IDIBELL, Campus Bellvitge, Universitat de Barcelona, L'Hospitalet de Llobregat, Barcelona, Spain
| | - Arturo Martinez-Martinez
- Departament de Ciències Fisiològiques, IDIBELL, Campus Bellvitge, Universitat de Barcelona, L'Hospitalet de Llobregat, Barcelona, Spain
| | - Monica Cubillos-Rojas
- Departament de Ciències Fisiològiques, IDIBELL, Campus Bellvitge, Universitat de Barcelona, L'Hospitalet de Llobregat, Barcelona, Spain
| | - Ramon Bartrons
- Departament de Ciències Fisiològiques, IDIBELL, Campus Bellvitge, Universitat de Barcelona, L'Hospitalet de Llobregat, Barcelona, Spain
| | - Francesc Ventura
- Departament de Ciències Fisiològiques, IDIBELL, Campus Bellvitge, Universitat de Barcelona, L'Hospitalet de Llobregat, Barcelona, Spain
| | - Jose Luis Rosa
- Departament de Ciències Fisiològiques, IDIBELL, Campus Bellvitge, Universitat de Barcelona, L'Hospitalet de Llobregat, Barcelona, Spain
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14
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Luo Q, Lin YX, Yang PP, Wang Y, Qi GB, Qiao ZY, Li BN, Zhang K, Zhang JP, Wang L, Wang H. A self-destructive nanosweeper that captures and clears amyloid β-peptides. Nat Commun 2018; 9:1802. [PMID: 29728565 PMCID: PMC5935695 DOI: 10.1038/s41467-018-04255-z] [Citation(s) in RCA: 120] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Accepted: 04/18/2018] [Indexed: 01/31/2023] Open
Abstract
Cerebral amyloid β-peptide (Aβ) accumulation resulting from an imbalance between Aβ production and clearance is one of the most important causes in the formation of Alzheimer's disease (AD). In order to preserve the maintenance of Aβ homeostasis and have a notable AD therapy, achieving a method to clear up Aβ plaques becomes an emerging task. Herein, we describe a self-destructive nanosweeper based on multifunctional peptide-polymers that is capable of capturing and clearing Aβ for the effective treatment of AD. The nanosweeper recognize and bind Aβ via co-assembly through hydrogen bonding interactions. The Aβ-loaded nanosweeper enters cells and upregulates autophagy thus promoting the degradation of Aβ. As a result, the nanosweeper decreases the cytotoxicity of Aβ and rescues memory deficits of AD transgenic mice. We believe that this resourceful and synergistic approach has valuable potential as an AD treatment strategy.
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Affiliation(s)
- Qiang Luo
- Faculty of Chemistry, Northeast Normal University, 130024, Changchun, China.,CAS Center for Excellence in Nanoscience, CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology (NCNST), 100190, Beijing, China
| | - Yao-Xin Lin
- CAS Center for Excellence in Nanoscience, CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology (NCNST), 100190, Beijing, China.,University of Chinese Academy of Sciences, 100049, Beijing, China.,School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Guangzhou, 510006, China
| | - Pei-Pei Yang
- CAS Center for Excellence in Nanoscience, CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology (NCNST), 100190, Beijing, China
| | - Yi Wang
- CAS Center for Excellence in Nanoscience, CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology (NCNST), 100190, Beijing, China.,University of Chinese Academy of Sciences, 100049, Beijing, China
| | - Guo-Bin Qi
- CAS Center for Excellence in Nanoscience, CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology (NCNST), 100190, Beijing, China
| | - Zeng-Ying Qiao
- CAS Center for Excellence in Nanoscience, CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology (NCNST), 100190, Beijing, China
| | - Bing-Nan Li
- Faculty of Chemistry, Northeast Normal University, 130024, Changchun, China.,CAS Center for Excellence in Nanoscience, CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology (NCNST), 100190, Beijing, China
| | - Kuo Zhang
- Faculty of Chemistry, Northeast Normal University, 130024, Changchun, China.,CAS Center for Excellence in Nanoscience, CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology (NCNST), 100190, Beijing, China
| | - Jing-Ping Zhang
- Faculty of Chemistry, Northeast Normal University, 130024, Changchun, China.
| | - Lei Wang
- CAS Center for Excellence in Nanoscience, CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology (NCNST), 100190, Beijing, China.
| | - Hao Wang
- CAS Center for Excellence in Nanoscience, CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology (NCNST), 100190, Beijing, China. .,University of Chinese Academy of Sciences, 100049, Beijing, China.
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15
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Bachiller S, Roca-Ceballos MA, García-Domínguez I, Pérez-Villegas EM, Martos-Carmona D, Pérez-Castro MÁ, Real LM, Rosa JL, Tabares L, Venero JL, Armengol JÁ, Carrión ÁM, Ruiz R. HERC1 Ubiquitin Ligase Is Required for Normal Axonal Myelination in the Peripheral Nervous System. Mol Neurobiol 2018; 55:8856-8868. [PMID: 29603094 DOI: 10.1007/s12035-018-1021-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Accepted: 03/16/2018] [Indexed: 12/14/2022]
Abstract
A missense mutation in HERC1 provokes loss of cerebellar Purkinje cells, tremor, and unstable gait in tambaleante (tbl) mice. Recently, we have shown that before cerebellar degeneration takes place, the tbl mouse suffers from a reduction in the number of vesicles available for release at the neuromuscular junction (NMJ). The aim of the present work was to study to which extent the alteration in HERC1 may affect other cells in the nervous system and how this may influence the motor dysfunction observed in these mice. The functional analysis showed a consistent delay in the propagation of the action potential in mutant mice in comparison with control littermates. Morphological analyses of glial cells in motor axons revealed signs of compact myelin damage as tomacula and local hypermyelination foci. Moreover, we observed an alteration in non-myelinated terminal Schwann cells at the level of the NMJ. Additionally, we found a significant increment of phosphorylated Akt-2 in the sciatic nerve. Based on these findings, we propose a molecular model that could explain how mutated HERC1 in tbl mice affects the myelination process in the peripheral nervous system. Finally, since the myelin abnormalities found in tbl mice are histological hallmarks of neuropathic periphery diseases, tbl mutant mice could be considered as a new mouse model for this type of diseases.
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Affiliation(s)
- Sara Bachiller
- Department of Physiology, Anatomy and Cellular Biology, University of Pablo de Olavide, Seville, Spain
| | - María Angustias Roca-Ceballos
- Department of Biochemistry and Molecular Biology, School of Pharmacy, University of Seville, and Instituto de Biomedicina de Sevilla-Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Calle Profesor García González 2, 41012, Sevilla, Spain
| | - Irene García-Domínguez
- Department of Biochemistry and Molecular Biology, School of Pharmacy, University of Seville, and Instituto de Biomedicina de Sevilla-Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Calle Profesor García González 2, 41012, Sevilla, Spain
| | - Eva María Pérez-Villegas
- Department of Physiology, Anatomy and Cellular Biology, University of Pablo de Olavide, Seville, Spain
| | - David Martos-Carmona
- Department of Physiology, Anatomy and Cellular Biology, University of Pablo de Olavide, Seville, Spain
| | - Miguel Ángel Pérez-Castro
- Department of Biochemistry and Molecular Biology, School of Pharmacy, University of Seville, and Instituto de Biomedicina de Sevilla-Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Calle Profesor García González 2, 41012, Sevilla, Spain
| | - Luis Miguel Real
- Unit of Infectious Diseases and Microbiology, Valme University Hospital, Seville, Spain
| | - José Luis Rosa
- Departament de Ciències Fisiològiques II, IDIBELL, Campus de Bellvitge, Universitat de Barcelona, L'Hospitalet de Llobregat, E-08907, Barcelona, Spain
| | - Lucía Tabares
- Department of Medical Physiology and Biophysics, School of Medicine, University of Seville, Seville, Spain
| | - José Luis Venero
- Department of Biochemistry and Molecular Biology, School of Pharmacy, University of Seville, and Instituto de Biomedicina de Sevilla-Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Calle Profesor García González 2, 41012, Sevilla, Spain
| | - José Ángel Armengol
- Department of Physiology, Anatomy and Cellular Biology, University of Pablo de Olavide, Seville, Spain
| | - Ángel Manuel Carrión
- Department of Physiology, Anatomy and Cellular Biology, University of Pablo de Olavide, Seville, Spain
| | - Rocío Ruiz
- Department of Physiology, Anatomy and Cellular Biology, University of Pablo de Olavide, Seville, Spain. .,Department of Biochemistry and Molecular Biology, School of Pharmacy, University of Seville, and Instituto de Biomedicina de Sevilla-Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Calle Profesor García González 2, 41012, Sevilla, Spain.
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16
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Cubillos-Rojas M, Schneider T, Hadjebi O, Pedrazza L, de Oliveira JR, Langa F, Guénet JL, Duran J, de Anta JM, Alcántara S, Ruiz R, Pérez-Villegas EM, Aguilar-Montilla FJ, Carrión ÁM, Armengol JA, Baple E, Crosby AH, Bartrons R, Ventura F, Rosa JL. The HERC2 ubiquitin ligase is essential for embryonic development and regulates motor coordination. Oncotarget 2018; 7:56083-56106. [PMID: 27528230 PMCID: PMC5302898 DOI: 10.18632/oncotarget.11270] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Accepted: 08/01/2016] [Indexed: 01/22/2023] Open
Abstract
A mutation in the HERC2 gene has been linked to a severe neurodevelopmental disorder with similarities to the Angelman syndrome. This gene codifies a protein with ubiquitin ligase activity that regulates the activity of tumor protein p53 and is involved in important cellular processes such as DNA repair, cell cycle, cancer, and iron metabolism. Despite the critical role of HERC2 in these physiological and pathological processes, little is known about its relevance in vivo. Here, we described a mouse with targeted inactivation of the Herc2 gene. Homozygous mice were not viable. Distinct from other ubiquitin ligases that interact with p53, such as MDM2 or MDM4, p53 depletion did not rescue the lethality of homozygous mice. The HERC2 protein levels were reduced by approximately one-half in heterozygous mice. Consequently, HERC2 activities, including ubiquitin ligase and stimulation of p53 activity, were lower in heterozygous mice. A decrease in HERC2 activities was also observed in human skin fibroblasts from individuals with an Angelman-like syndrome that express an unstable mutant protein of HERC2. Behavioural analysis of heterozygous mice identified an impaired motor synchronization with normal neuromuscular function. This effect was not observed in p53 knockout mice, indicating that a mechanism independent of p53 activity is involved. Morphological analysis showed the presence of HERC2 in Purkinje cells and a specific loss of these neurons in the cerebella of heterozygous mice. In these animals, an increase of autophagosomes and lysosomes was observed. Our findings establish a crucial role of HERC2 in embryonic development and motor coordination.
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Affiliation(s)
- Monica Cubillos-Rojas
- Departament de Ciències Fisiològiques, IDIBELL, Campus de Bellvitge, Universitat de Barcelona, L'Hospitalet de Llobregat, Barcelona, Spain
| | - Taiane Schneider
- Departament de Ciències Fisiològiques, IDIBELL, Campus de Bellvitge, Universitat de Barcelona, L'Hospitalet de Llobregat, Barcelona, Spain
| | - Ouadah Hadjebi
- Departament de Ciències Fisiològiques, IDIBELL, Campus de Bellvitge, Universitat de Barcelona, L'Hospitalet de Llobregat, Barcelona, Spain
| | - Leonardo Pedrazza
- Departament de Ciències Fisiològiques, IDIBELL, Campus de Bellvitge, Universitat de Barcelona, L'Hospitalet de Llobregat, Barcelona, Spain.,Laboratório de Pesquisa em Biofísica Celular e Inflamação, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Jarbas Rodrigues de Oliveira
- Laboratório de Pesquisa em Biofísica Celular e Inflamação, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Francina Langa
- Département de Biologie du Développement, Institut Pasteur, Paris, France
| | - Jean-Louis Guénet
- Département de Biologie du Développement, Institut Pasteur, Paris, France
| | - Joan Duran
- Departament de Patologia i Terapèutica Experimental, Campus de Bellvitge, Universitat de Barcelona, L'Hospitalet de Llobregat, Barcelona, Spain
| | - Josep Maria de Anta
- Departament de Patologia i Terapèutica Experimental, Campus de Bellvitge, Universitat de Barcelona, L'Hospitalet de Llobregat, Barcelona, Spain
| | - Soledad Alcántara
- Departament de Patologia i Terapèutica Experimental, Campus de Bellvitge, Universitat de Barcelona, L'Hospitalet de Llobregat, Barcelona, Spain
| | - Rocio Ruiz
- Departamento de Bioquímica y Biología Molecular, Facultad de Farmacia, Universidad de Sevilla, Sevilla, Spain.,Departamento de Fisiología, Anatomía y Biología Celular, Universidad Pablo de Olavide, Sevilla, Spain
| | - Eva María Pérez-Villegas
- Departamento de Fisiología, Anatomía y Biología Celular, Universidad Pablo de Olavide, Sevilla, Spain
| | | | - Ángel M Carrión
- Departamento de Fisiología, Anatomía y Biología Celular, Universidad Pablo de Olavide, Sevilla, Spain
| | - Jose Angel Armengol
- Departamento de Fisiología, Anatomía y Biología Celular, Universidad Pablo de Olavide, Sevilla, Spain
| | - Emma Baple
- Institute of Biomedical and Clinical Science, University of Exeter Medical School, RILD Wellcome Wolfson Centre, Exeter, UK
| | - Andrew H Crosby
- Institute of Biomedical and Clinical Science, University of Exeter Medical School, RILD Wellcome Wolfson Centre, Exeter, UK
| | - Ramon Bartrons
- Departament de Ciències Fisiològiques, IDIBELL, Campus de Bellvitge, Universitat de Barcelona, L'Hospitalet de Llobregat, Barcelona, Spain
| | - Francesc Ventura
- Departament de Ciències Fisiològiques, IDIBELL, Campus de Bellvitge, Universitat de Barcelona, L'Hospitalet de Llobregat, Barcelona, Spain
| | - Jose Luis Rosa
- Departament de Ciències Fisiològiques, IDIBELL, Campus de Bellvitge, Universitat de Barcelona, L'Hospitalet de Llobregat, Barcelona, Spain
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17
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Utine GE, Taşkıran EZ, Koşukcu C, Karaosmanoğlu B, Güleray N, Doğan ÖA, Kiper PÖŞ, Boduroğlu K, Alikaşifoğlu M. HERC1 mutations in idiopathic intellectual disability. Eur J Med Genet 2017; 60:279-283. [PMID: 28323226 DOI: 10.1016/j.ejmg.2017.03.007] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Revised: 02/02/2017] [Accepted: 03/15/2017] [Indexed: 10/19/2022]
Abstract
HERC1 is a member of HERC protein family of ubiquitin ligases and is a negative regulator of the mTOR pathway. It is also a guanine nucleotide exchange factor for ARF and Rab family GTPases. Biallelic mutations in HERC1 were recently shown to cause a human phenotype with overgrowth and intellectual disability as main features. Herein we describe clinical features in another patient with homozygous novel mutation in HERC1. Moderate to severe intellectual disability, hypotonia, macrocephaly, tall stature, and facial features appear as main clinical features of the condition. Kyphoscoliosis and seizures frequently accompany and autistic features might be another feature as recent studies also implicate. HERC1 mutations should be considered in differential diagnosis of severe intellectual disability and behavioural problems, particularly in patients testing negative for fragile X and KANSL1 mutations.
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Affiliation(s)
- G Eda Utine
- Hacettepe University, Faculty of Medicine, Department of Pediatric Genetics, Ankara, Turkey.
| | - Ekim Z Taşkıran
- Hacettepe University, Faculty of Medicine, Department of Medical Genetics, Ankara, Turkey
| | - Can Koşukcu
- Hacettepe University, Faculty of Medicine, Department of Medical Genetics, Ankara, Turkey
| | - Beren Karaosmanoğlu
- Hacettepe University, Faculty of Medicine, Department of Medical Genetics, Ankara, Turkey
| | - Naz Güleray
- Hacettepe University, Faculty of Medicine, Department of Medical Genetics, Ankara, Turkey
| | - Özlem Akgün Doğan
- Hacettepe University, Faculty of Medicine, Department of Pediatric Genetics, Ankara, Turkey
| | - P Özlem Şimşek Kiper
- Hacettepe University, Faculty of Medicine, Department of Pediatric Genetics, Ankara, Turkey
| | - Koray Boduroğlu
- Hacettepe University, Faculty of Medicine, Department of Pediatric Genetics, Ankara, Turkey
| | - Mehmet Alikaşifoğlu
- Hacettepe University, Faculty of Medicine, Department of Medical Genetics, Ankara, Turkey
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18
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Fucà E, Guglielmotto M, Boda E, Rossi F, Leto K, Buffo A. Preventive motor training but not progenitor grafting ameliorates cerebellar ataxia and deregulated autophagy in tambaleante mice. Neurobiol Dis 2017; 102:49-59. [PMID: 28237314 DOI: 10.1016/j.nbd.2017.02.005] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Revised: 01/20/2017] [Accepted: 02/20/2017] [Indexed: 01/14/2023] Open
Abstract
Treatment options for degenerative cerebellar ataxias are currently very limited. A large fraction of such disorders is represented by hereditary cerebellar ataxias, whose familiar transmission facilitates an early diagnosis and may possibly allow to start preventive treatments before the onset of the neurodegeneration and appearance of first symptoms. In spite of the heterogeneous aetiology, histological alterations of ataxias often include the primary degeneration of the cerebellar cortex caused by Purkinje cells (PCs) loss. Thus, approaches aimed at replacing or preserving PCs could represent promising ways of disease management. In the present study, we compared the efficacy of two different preventive strategies, namely cell replacement and motor training. We used tambaleante (tbl) mice as a model for progressive ataxia caused by selective loss of PCs and evaluated the effectiveness of the preventive transplantation of healthy PCs into early postnatal tbl cerebella, in terms of PC replacement and functional preservation. On the other hand, we investigated the effects of motor training on PC survival, cerebellar circuitry and their behavioral correlates. Our results demonstrate that, despite a good survival rate and integration of grafted PCs, the adopted grafting protocol could not alleviate the ataxic symptoms in tbl mice. Conversely, preventive motor training increases PCs survival with a moderate positive impact on the motor phenotype.
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Affiliation(s)
- Elisa Fucà
- Department of Neuroscience Rita Levi-Montalcini, University of Turin, Italy; Neuroscience Institute Cavalieri Ottolenghi, Regione Gonzole, 10043 Orbassano, Turin, Italy.
| | - Michela Guglielmotto
- Neuroscience Institute Cavalieri Ottolenghi, Regione Gonzole, 10043 Orbassano, Turin, Italy
| | - Enrica Boda
- Department of Neuroscience Rita Levi-Montalcini, University of Turin, Italy; Neuroscience Institute Cavalieri Ottolenghi, Regione Gonzole, 10043 Orbassano, Turin, Italy
| | - Ferdinando Rossi
- Department of Neuroscience Rita Levi-Montalcini, University of Turin, Italy
| | - Ketty Leto
- Neuroscience Institute Cavalieri Ottolenghi, Regione Gonzole, 10043 Orbassano, Turin, Italy
| | - Annalisa Buffo
- Department of Neuroscience Rita Levi-Montalcini, University of Turin, Italy; Neuroscience Institute Cavalieri Ottolenghi, Regione Gonzole, 10043 Orbassano, Turin, Italy.
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Pérez-Villegas EM, Negrete-Díaz JV, Porras-García ME, Ruiz R, Carrión AM, Rodríguez-Moreno A, Armengol JA. Mutation of the HERC 1 Ubiquitin Ligase Impairs Associative Learning in the Lateral Amygdala. Mol Neurobiol 2017; 55:1157-1168. [PMID: 28102468 DOI: 10.1007/s12035-016-0371-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Accepted: 12/28/2016] [Indexed: 12/14/2022]
Abstract
Tambaleante (tbl/tbl) is a mutant mouse that carries a spontaneous Gly483Glu substitution in the HERC1 (HECT domain and RCC1 domain) E3 ubiquitin ligase protein (HERC1). The tbl/tbl mutant suffers an ataxic syndrome given the almost complete loss of cerebellar Purkinje cells during adult life. More recent analyses have identified alterations at neuromuscular junctions in these mice, as well as in other neurons of the central nervous system, such as motor neurons in the spinal cord, or pyramidal neurons in the hippocampal CA3 region and the neocortex. Accordingly, the effect of the tbl/tbl mutation apparently extends to other regions of the nervous system far from the cerebellum. As HERC1 mutations in humans have been correlated with intellectual impairment, we studied the effect of the tbl/tbl mutation on learning. Using a behavioral test, ex vivo electrophysiological recordings, immunohistochemistry, and Golgi method, we analyzed the associative learning in the lateral amygdala of the tbl/tbl mouse. The tbl/tbl mice perform worse than wild-type animals in the passive avoidance test, and histologically, the tbl/tbl mice have more immature forms of dendritic spines. In addition, LTP cannot be detected in these animals and their STP is dampened, as is their glutamatergic input to the lateral amygdala. Together, these data suggest that HERC1 is probably involved in regulating synaptic function in the amygdala. Indeed, these results indicate that the tbl/tbl mutation is a good model to analyze the effect of alterations to the ubiquitin-proteasome pathway on the synaptic mechanisms involved in learning and its defects.
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Affiliation(s)
- Eva Mª Pérez-Villegas
- Department of Physiology, Anatomy and Cell Biology, University Pablo de Olavide, Ctra Utrera km. 1, 41013, Seville, Spain
| | - José V Negrete-Díaz
- Department of Physiology, Anatomy and Cell Biology, University Pablo de Olavide, Ctra Utrera km. 1, 41013, Seville, Spain
- División de Ciencias de la Salud e Ingenierías, Universidad de Guanajuato, Campus Celaya-Salvatierra, Guanajuato, Mexico
| | - Mª Elena Porras-García
- Department of Physiology, Anatomy and Cell Biology, University Pablo de Olavide, Ctra Utrera km. 1, 41013, Seville, Spain
| | - Rocío Ruiz
- Department of Biochemistry and Molecular Biology, School of Pharmacy, University of Seville, 41012, Seville, Spain
| | - Angel M Carrión
- Department of Physiology, Anatomy and Cell Biology, University Pablo de Olavide, Ctra Utrera km. 1, 41013, Seville, Spain
| | - Antonio Rodríguez-Moreno
- Department of Physiology, Anatomy and Cell Biology, University Pablo de Olavide, Ctra Utrera km. 1, 41013, Seville, Spain
| | - José A Armengol
- Department of Physiology, Anatomy and Cell Biology, University Pablo de Olavide, Ctra Utrera km. 1, 41013, Seville, Spain.
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