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Mi Z, Povysheva N, Rose ME, Ma J, Zeh DJ, Harikumar N, Bhuiyan MIH, Graham SH. Abolishing UCHL1's hydrolase activity exacerbates ischemia-induced axonal injury and functional deficits in mice. J Cereb Blood Flow Metab 2024:271678X241258809. [PMID: 38833565 DOI: 10.1177/0271678x241258809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/06/2024]
Abstract
Ubiquitin C-terminal hydrolase L1 (UCHL1) is a neuronal protein important in maintaining axonal integrity and motor function and may be important in the pathogenesis of many neurological disorders. UCHL1 may ameliorate acute injury and improve recovery after cerebral ischemia. In the current study, the hypothesis that UCHL1's hydrolase activity underlies its effect in maintaining axonal integrity and function is tested after ischemic injury. Hydrolase activity was inhibited by treatment with a UCHL1 hydrolase inhibitor or by employing knockin mice bearing a mutation in the hydrolase active site (C90A). Ischemic injury was induced by oxygen-glucose deprivation (OGD) in brain slice preparations and by transient middle cerebral artery occlusion (tMCAO) surgery in mice. Hydrolase activity inhibition increased restoration time and decreased the amplitude of evoked axonal responses in the corpus callosum after OGD. Mutation of the hydrolase active site exacerbated white matter injury as detected by SMI32 immunohistochemistry, and motor deficits as detected by beam balance and cylinder testing after tMCAO. These results demonstrate that UCHL1 hydrolase activity ameliorates white matter injury and functional deficits after acute ischemic injury and support the hypothesis that UCHL1 activity plays a significant role in preserving white matter integrity and recovery of function after cerebral ischemia.
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Affiliation(s)
- Zhiping Mi
- Department of Neurology, School of Medicine, Kenneth P. Dietrich School of Arts and Sciences, University of Pittsburgh, Pittsburgh, PA, USA
| | - Nadya Povysheva
- Department of Neuroscience, Kenneth P. Dietrich School of Arts and Sciences, University of Pittsburgh, Pittsburgh, PA, USA
| | - Marie E Rose
- Department of Neurology, School of Medicine, Kenneth P. Dietrich School of Arts and Sciences, University of Pittsburgh, Pittsburgh, PA, USA
| | - Jie Ma
- Department of Neurology, School of Medicine, Kenneth P. Dietrich School of Arts and Sciences, University of Pittsburgh, Pittsburgh, PA, USA
| | - Dennis J Zeh
- Department of Neurology, School of Medicine, Kenneth P. Dietrich School of Arts and Sciences, University of Pittsburgh, Pittsburgh, PA, USA
| | - Nikitha Harikumar
- Department of Neuroscience, Kenneth P. Dietrich School of Arts and Sciences, University of Pittsburgh, Pittsburgh, PA, USA
| | - Mohammad Iqbal H Bhuiyan
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Texas at El Paso, El Paso, TX, USA
| | - Steven H Graham
- Department of Neurology, School of Medicine, Kenneth P. Dietrich School of Arts and Sciences, University of Pittsburgh, Pittsburgh, PA, USA
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Servín Muñoz IV, Ortuño-Sahagún D, Griñán-Ferré C, Pallàs M, González-Castillo C. Alterations in Proteostasis Mechanisms in Niemann-Pick Type C Disease. Int J Mol Sci 2024; 25:3806. [PMID: 38612616 PMCID: PMC11011983 DOI: 10.3390/ijms25073806] [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: 02/01/2024] [Revised: 02/20/2024] [Accepted: 02/26/2024] [Indexed: 04/14/2024] Open
Abstract
Niemann-Pick Type C (NPC) represents an autosomal recessive disorder with an incidence rate of 1 in 150,000 live births, classified within lysosomal storage diseases (LSDs). The abnormal accumulation of unesterified cholesterol characterizes the pathophysiology of NPC. This phenomenon is not unique to NPC, as analogous accumulations have also been observed in Alzheimer's disease, Parkinson's disease, and other neurodegenerative disorders. Interestingly, disturbances in the folding of the mutant protein NPC1 I1061T are accompanied by the aggregation of proteins such as hyperphosphorylated tau, α-synuclein, TDP-43, and β-amyloid peptide. These accumulations suggest potential disruptions in proteostasis, a regulatory process encompassing four principal mechanisms: synthesis, folding, maintenance of folding, and protein degradation. The dysregulation of these processes leads to excessive accumulation of abnormal proteins that impair cell function and trigger cytotoxicity. This comprehensive review delineates reported alterations across proteostasis mechanisms in NPC, encompassing changes in processes from synthesis to degradation. Additionally, it discusses therapeutic interventions targeting pharmacological facets of proteostasis in NPC. Noteworthy among these interventions is valproic acid, a histone deacetylase inhibitor (HDACi) that modulates acetylation during NPC1 synthesis. In addition, various therapeutic options addressing protein folding modulation, such as abiraterone acetate, DHBP, calnexin, and arimoclomol, are examined. Additionally, treatments impeding NPC1 degradation, exemplified by bortezomib and MG132, are explored as potential strategies. This review consolidates current knowledge on proteostasis dysregulation in NPC and underscores the therapeutic landscape targeting diverse facets of this intricate process.
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Affiliation(s)
- Iris Valeria Servín Muñoz
- Laboratorio de Neuroinmunobiología Molecular, Instituto de Investigación en Ciencias Biomédicas (IICB), Centro Universitario de Ciencias de la Salud (CUCS), Universidad de Guadalajara, Guadalajara 44340, Mexico;
| | - Daniel Ortuño-Sahagún
- Laboratorio de Neuroinmunobiología Molecular, Instituto de Investigación en Ciencias Biomédicas (IICB), Centro Universitario de Ciencias de la Salud (CUCS), Universidad de Guadalajara, Guadalajara 44340, Mexico;
| | - Christian Griñán-Ferré
- Pharmacology Section, Department of Pharmacology, Toxicology and Therapeutic Chemistry, Faculty of Pharmacy and Food Sciences, Institute of Neuroscience, Universitat de Barcelona, 08028 Barcelona, Spain; (C.G.-F.); (M.P.)
- Centro de Investigación Biomédica en Red (CiberNed), Network Center for Neurodegenerative Diseases, National Spanish Health Institute Carlos III, 28220 Madrid, Spain
| | - Mercè Pallàs
- Pharmacology Section, Department of Pharmacology, Toxicology and Therapeutic Chemistry, Faculty of Pharmacy and Food Sciences, Institute of Neuroscience, Universitat de Barcelona, 08028 Barcelona, Spain; (C.G.-F.); (M.P.)
- Centro de Investigación Biomédica en Red (CiberNed), Network Center for Neurodegenerative Diseases, National Spanish Health Institute Carlos III, 28220 Madrid, Spain
| | - Celia González-Castillo
- Tecnologico de Monterrey, Escuela de Medicina y Ciencias de la Salud, Campus Guadalajara, Zapopan 45201, Mexico
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Materozzi M, Resnati M, Facchi C, Trudu M, Orfanelli U, Perini T, Gennari L, Milan E, Cenci S. A novel proteomic signature of osteoclast differentiation unveils the deubiquitinase UCHL1 as a necessary osteoclastogenic driver. Sci Rep 2024; 14:7290. [PMID: 38538704 PMCID: PMC10973525 DOI: 10.1038/s41598-024-57898-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Accepted: 03/22/2024] [Indexed: 04/02/2024] Open
Abstract
Bone destruction, a major source of morbidity, is mediated by heightened differentiation and activity of osteoclasts (OC), highly specialized multinucleated myeloid cells endowed with unique bone-resorptive capacity. The molecular mechanisms regulating OC differentiation in the bone marrow are still partly elusive. Here, we aimed to identify new regulatory circuits and actionable targets by comprehensive proteomic characterization of OCgenesis from mouse bone marrow monocytes, adopting two parallel unbiased comparative proteomic approaches. This work disclosed an unanticipated protein signature of OCgenesis, with most gene products currently unannotated in bone-related functions, revealing broad structural and functional cellular reorganization and divergence from macrophagic immune activity. Moreover, we identified the deubiquitinase UCHL1 as the most upregulated cytosolic protein in differentiating OCs. Functional studies proved it essential, as UCHL1 genetic and pharmacologic inhibition potently suppressed OCgenesis. Furthermore, proteomics and mechanistic dissection showed that UCHL1 supports OC differentiation by restricting the anti-OCgenic activity of NRF2, the transcriptional activator of the canonical antioxidant response, through redox-independent stabilization of the NRF2 inhibitor, KEAP1. Besides offering a valuable experimental framework to dissect OC differentiation, our study discloses the essential role of UCHL1, exerted through KEAP1-dependent containment of NRF2 anti-OCgenic activity, yielding a novel potential actionable pathway against bone loss.
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Affiliation(s)
- Maria Materozzi
- Age Related Diseases Unit, IRCCS Ospedale San Raffaele, Milan, Italy.
- Università Vita-Salute San Raffaele, Milan, Italy.
| | - Massimo Resnati
- Age Related Diseases Unit, IRCCS Ospedale San Raffaele, Milan, Italy
| | - Cecilia Facchi
- Age Related Diseases Unit, IRCCS Ospedale San Raffaele, Milan, Italy
- Università Vita-Salute San Raffaele, Milan, Italy
| | - Matteo Trudu
- Age Related Diseases Unit, IRCCS Ospedale San Raffaele, Milan, Italy
- Università Vita-Salute San Raffaele, Milan, Italy
| | - Ugo Orfanelli
- Age Related Diseases Unit, IRCCS Ospedale San Raffaele, Milan, Italy
| | - Tommaso Perini
- Age Related Diseases Unit, IRCCS Ospedale San Raffaele, Milan, Italy
- Università Vita-Salute San Raffaele, Milan, Italy
| | - Luigi Gennari
- Department of Medicine, Surgery and Neurosciences, University of Siena, Siena, Italy
| | - Enrico Milan
- Age Related Diseases Unit, IRCCS Ospedale San Raffaele, Milan, Italy.
- Università Vita-Salute San Raffaele, Milan, Italy.
| | - Simone Cenci
- Age Related Diseases Unit, IRCCS Ospedale San Raffaele, Milan, Italy.
- Università Vita-Salute San Raffaele, Milan, Italy.
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4
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Wang J, Ji C, Ye W, Rong Y, Ge X, Wang Z, Tang P, Zhou Z, Luo Y, Cai W. Deubiquitinase UCHL1 promotes angiogenesis and blood-spinal cord barrier function recovery after spinal cord injury by stabilizing Sox17. Cell Mol Life Sci 2024; 81:137. [PMID: 38478109 PMCID: PMC10937794 DOI: 10.1007/s00018-024-05186-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 02/15/2024] [Accepted: 02/18/2024] [Indexed: 03/17/2024]
Abstract
Improving the function of the blood-spinal cord barrier (BSCB) benefits the functional recovery of mice following spinal cord injury (SCI). The death of endothelial cells and disruption of the BSCB at the injury site contribute to secondary damage, and the ubiquitin-proteasome system is involved in regulating protein function. However, little is known about the regulation of deubiquitinated enzymes in endothelial cells and their effect on BSCB function after SCI. We observed that Sox17 is predominantly localized in endothelial cells and is significantly upregulated after SCI and in LPS-treated brain microvascular endothelial cells. In vitro Sox17 knockdown attenuated endothelial cell proliferation, migration, and tube formation, while in vivo Sox17 knockdown inhibited endothelial regeneration and barrier recovery, leading to poor functional recovery after SCI. Conversely, in vivo overexpression of Sox17 promoted angiogenesis and functional recovery after injury. Additionally, immunoprecipitation-mass spectrometry revealed the interaction between the deubiquitinase UCHL1 and Sox17, which stabilized Sox17 and influenced angiogenesis and BSCB repair following injury. By generating UCHL1 conditional knockout mice and conducting rescue experiments, we further validated that the deubiquitinase UCHL1 promotes angiogenesis and restoration of BSCB function after injury by stabilizing Sox17. Collectively, our findings present a novel therapeutic target for treating SCI by revealing a potential mechanism for endothelial cell regeneration and BSCB repair after SCI.
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Affiliation(s)
- Jiaxing Wang
- Department of Orthopedics, First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Chengyue Ji
- Department of Orthopedics, First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Wu Ye
- Department of Orthopedics, First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Yuluo Rong
- Department of Orthopaedics, Centre for Leading Medicine and Advanced Technologies of IHM, Division of Life Sciences and Medicine, The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei, 230001, Anhui, China
| | - Xuhui Ge
- Department of Orthopedics, First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Zhuanghui Wang
- Department of Orthopedics, First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Pengyu Tang
- Department of Orthopedics, First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Zheng Zhou
- Department of Emergency Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China.
| | - Yongjun Luo
- Department of Orthopedics, The Fourth Affiliated Hospital of Soochow University, Suzhou, 215123, Jiangsu, China.
| | - Weihua Cai
- Department of Orthopedics, First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China.
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5
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Mavroudis I, Balmus IM, Ciobica A, Hogas M. A Narrative Review Of Risk Factors And Predictors For Poor Outcome And Prolonged Recovery After A Mild Traumatic Brain Injury. Int J Neurosci 2024:1-22. [PMID: 38465501 DOI: 10.1080/00207454.2024.2328710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Accepted: 03/05/2024] [Indexed: 03/12/2024]
Abstract
MATERIAL AND METHODS A comprehensive search of the main scientific databases (PubMed, Web of Science, Embase, and Cochrane Library) was performed using keywords, such as: "prolonged post-concussion syndrome", combined with "risk factors", "predictors", and "outcomes". RESULTS Multiple studies reported more than one risk factor for PPCS development following mTBIs that were generally the results of sports-related concussions and car accidents. The most prevalent risk factor associated with PPCS was the female sex. Social factors/personality traits, anxiety, mental health disorders, or other health conditions from their past medical history, the occurrence of headache/migraines during TBI recovery, somatization, physical activity, and litigation were also reported to contribute to PPCS risk. CONCLUSIONS An exhaustive approach is required to mitigate the risk of PPCS and to ensure optimal recovery after concussive events. However, larger prospective cohort studies evaluating patients that were examined and treated with standardized protocols could be needed to further validate these associations and mandate the highest risk factors for delayed recovery.
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Affiliation(s)
- Ioannis Mavroudis
- Department of Neurology, Leeds Teaching Hospitals, NHS Trust, Leeds, UK
| | - Ioana-Miruna Balmus
- Department of Exact Sciences and Natural Sciences, Institute of Interdisciplinary Research, Alexandru Ioan Cuza University of Iași, 700057 Iași, Romania
- CENEMED Platform for Interdisciplinary Research, "Grigore T. Popa" University of Medicine and Pharmacy, 700115 Iasi, Romania
| | - Alin Ciobica
- Department of Biology, Faculty of Biology, Alexandru Ioan Cuza University of Iasi, B dul Carol I, No. 11, 700506 Iasi, Romania
- Academy of Romanian Scientists, Splaiul Independentei nr. 54, Sector 5, 050094 Bucuresti, Romania
- Centre of Biomedical Research, Romanian Academy, B dul Carol I, No. 8, 700506 Iasi, Romania
- Preclinical Department, Apollonia University, Păcurari Street 11, 700511 Iasi, Romania
| | - Mihai Hogas
- Department of Physiology, "Grigore T. Popa" University of Medicine and Pharmacy, 700115 Iasi, Romania
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Pernice HF, O'Donnell LF, Rossor AM, Laura M, Record CJ, Skorupinska M, Blake J, Poh R, Polke J, Reilly MM. Digenic FLNA and UCHL1 variants resulting in a complex phenotype. J Peripher Nerv Syst 2024; 29:111-115. [PMID: 38131667 DOI: 10.1111/jns.12611] [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: 10/31/2023] [Revised: 12/19/2023] [Accepted: 12/20/2023] [Indexed: 12/23/2023]
Abstract
AIM X-linked variants in Filamin A (FLNA) are associated with the Ehlers-Danlos-syndrome-variant form of periventricular heterotopia, and autosomal dominant variants in ubiquitin C-terminal hydrolase L1 (UCHL1) are associated with a late-onset spastic ataxia, peripheral neuropathy and optic atrophy. Here we present a rare case involving both a novel heterozygous whole-gene deletion of UCHL1 and a heterozygous frameshift variant in the FLNA gene resulting in a complex phenotype. METHODS A 67-year-old female with a confirmed pathogenic variant in the FLNA gene, resulting in an enlarged aorta and joint pains, presented with a 4-year history of severe sensory ataxia, upper motor neuron signs, eye movement abnormalities and severe sensory loss. RESULTS Neurophysiology including Somatosensory-evoked potentials confirmed the sensory loss as predominantly preganglionic with denervation. Genetic testing revealed a digenic cause of her complex presentation, confirming a pathogenic frameshift variant in the FLNA gene and a heterozygous loss of function deletion in the UCHL1 gene. CONCLUSIONS To the best of our knowledge, this is the first case with concomitant pathogenic variants in the FLNA and UCHL1 genes which explain the complex phenotype. The severe preganglionic sensory loss is also a rare finding and expands the phenotype of UCHL1 variants.
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Affiliation(s)
- Helena F Pernice
- Centre for Neuromuscular Diseases (CNMD), Department of Neuromuscular Diseases, UCL Queen Square Institute of Neurology, London, UK
- Department of Neurology and Experimental Neurology, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Luke F O'Donnell
- Centre for Neuromuscular Diseases (CNMD), Department of Neuromuscular Diseases, UCL Queen Square Institute of Neurology, London, UK
| | - Alexander M Rossor
- Centre for Neuromuscular Diseases (CNMD), Department of Neuromuscular Diseases, UCL Queen Square Institute of Neurology, London, UK
| | - Matilde Laura
- Centre for Neuromuscular Diseases (CNMD), Department of Neuromuscular Diseases, UCL Queen Square Institute of Neurology, London, UK
| | - Christopher J Record
- Centre for Neuromuscular Diseases (CNMD), Department of Neuromuscular Diseases, UCL Queen Square Institute of Neurology, London, UK
| | - Mariola Skorupinska
- Centre for Neuromuscular Diseases (CNMD), Department of Neuromuscular Diseases, UCL Queen Square Institute of Neurology, London, UK
| | - Julian Blake
- Centre for Neuromuscular Diseases (CNMD), Department of Neuromuscular Diseases, UCL Queen Square Institute of Neurology, London, UK
- Department of Clinical Neurophysiology, Norfolk and Norwich University Hospital, Norwich, UK
| | - Roy Poh
- Centre for Neuromuscular Diseases (CNMD), Department of Neuromuscular Diseases, UCL Queen Square Institute of Neurology, London, UK
| | - James Polke
- Centre for Neuromuscular Diseases (CNMD), Department of Neuromuscular Diseases, UCL Queen Square Institute of Neurology, London, UK
| | - Mary M Reilly
- Centre for Neuromuscular Diseases (CNMD), Department of Neuromuscular Diseases, UCL Queen Square Institute of Neurology, London, UK
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Walker JM, Orr ME, Orr TC, Thorn EL, Christie TD, Yokoda RT, Vij M, Ehrenberg AJ, Marx GA, McKenzie AT, Kauffman J, Selmanovic E, Wisniewski T, Drummond E, White CL, Crary JF, Farrell K, Kautz TF, Daoud EV, Richardson TE. Spatial proteomics of hippocampal subfield-specific pathology in Alzheimer's disease and primary age-related tauopathy. Alzheimers Dement 2024; 20:783-797. [PMID: 37777848 PMCID: PMC10916977 DOI: 10.1002/alz.13484] [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: 07/06/2023] [Revised: 08/25/2023] [Accepted: 08/29/2023] [Indexed: 10/02/2023]
Abstract
INTRODUCTION Alzheimer's disease (AD) and primary age-related tauopathy (PART) both harbor 3R/4R hyperphosphorylated-tau (p-tau)-positive neurofibrillary tangles (NFTs) but differ in the spatial p-tau development in the hippocampus. METHODS Using Nanostring GeoMx Digital Spatial Profiling, we compared protein expression within hippocampal subregions in NFT-bearing and non-NFT-bearing neurons in AD (n = 7) and PART (n = 7) subjects. RESULTS Proteomic measures of synaptic health were inversely correlated with the subregional p-tau burden in AD and PART, and there were numerous differences in proteins involved in proteostasis, amyloid beta (Aβ) processing, inflammation, microglia, oxidative stress, and neuronal/synaptic health between AD and PART and between definite PART and possible PART. DISCUSSION These results suggest subfield-specific proteome differences that may explain some of the differences in Aβ and p-tau distribution and apparent pathogenicity. In addition, hippocampal neurons in possible PART may have more in common with AD than with definite PART, highlighting the importance of Aβ in the pathologic process. HIGHLIGHTS Synaptic health is inversely correlated with local p-tau burden. The proteome of NFT- and non-NFT-bearing neurons is influenced by the presence of Aβ in the hippocampus. Neurons in possible PART cases share more proteomic similarities with neurons in ADNC than they do with neurons in definite PART cases.
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8
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Buneeva O, Medvedev A. Ubiquitin Carboxyl-Terminal Hydrolase L1 and Its Role in Parkinson's Disease. Int J Mol Sci 2024; 25:1303. [PMID: 38279302 PMCID: PMC10816476 DOI: 10.3390/ijms25021303] [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: 12/25/2023] [Revised: 01/16/2024] [Accepted: 01/19/2024] [Indexed: 01/28/2024] Open
Abstract
Ubiquitin carboxyl-terminal hydrolase L1 (UCHL1), also known as Parkinson's disease protein 5, is a highly expressed protein in the brain. It plays an important role in the ubiquitin-proteasome system (UPS), where it acts as a deubiquitinase (DUB) enzyme. Being the smallest member of the UCH family of DUBs, it catalyzes the reaction of ubiquitin precursor processing and the cleavage of ubiquitinated protein remnants, thus maintaining the level of ubiquitin monomers in the brain cells. UCHL1 mutants, containing amino acid substitutions, influence catalytic activity and its aggregability. Some of them protect cells and transgenic mice in toxin-induced Parkinson's disease (PD) models. Studies of putative protein partners of UCHL1 revealed about sixty individual proteins located in all major compartments of the cell: nucleus, cytoplasm, endoplasmic reticulum, plasma membrane, mitochondria, and peroxisomes. These include proteins related to the development of PD, such as alpha-synuclein, amyloid-beta precursor protein, ubiquitin-protein ligase parkin, and heat shock proteins. In the context of the catalytic paradigm, the importance of these interactions is not clear. However, there is increasing understanding that UCHL1 exhibits various effects in a catalytically independent manner through protein-protein interactions. Since this protein represents up to 5% of the soluble protein in the brain, PD-related changes in its structure will have profound effects on the proteomes/interactomes in which it is involved. Growing evidence is accumulating that the role of UCHL1 in PD is obviously determined by a balance of canonic catalytic activity and numerous activity-independent protein-protein interactions, which still need better characterization.
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Affiliation(s)
| | - Alexei Medvedev
- Institute of Biomedical Chemistry, 10 Pogodinskaya Street, Moscow 119121, Russia;
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9
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Phillips KA, Lopez M, Bartling-John E, Meredith R, Buteau A, Alvarez A, Ross CN. Serum biomarkers associated with aging and neurodegeneration in common marmosets (Callithrix jacchus). Neurosci Lett 2024; 819:137569. [PMID: 38000775 PMCID: PMC10841648 DOI: 10.1016/j.neulet.2023.137569] [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: 09/30/2023] [Revised: 11/17/2023] [Accepted: 11/21/2023] [Indexed: 11/26/2023]
Abstract
The common marmoset (Callithrix jacchus), a small South American monkey, is an important nonhuman primate model in the study of aging and age-related neurodegenerative disease, including Alzheimer's disease, Parkinson's disease, and related dementias. Thorough characterization of the wild type marmoset brain agingmodel, including biomarkers of aging and neural degeneration, will further the marmoset's utility in translational research. We measured serum concentration of four key biomarkers of neural degeneration [total tau (T-tau), glial fibrillary acidic protein (GFAP), neurofilament light chain (NfL), and ubiquitin C-terminal hydrolase-L1 (UCH-L1)] via single molecule array from 24 marmosets (female n = 13, male n = 11) ranging in age from 1.3 to 18.7 years. Aged marmosets (>7 years) had significantly higher GFAP, NfL, UCH-L1, and T-tau than adult marmosets. Sex differences were not detected for any of these biomarker concentrations. These data provide an important initial range of reference values for GFAP, NfL, T-tau, and UCH-L1 to evaluate aging and neural health in marmosets, as well as evaluation of therapeutics in clinical models of disease.
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Affiliation(s)
- Kimberley A Phillips
- Department of Psychology, Trinity University, San Antonio Texas 78212, USA; Southwest National Primate Research Center, Texas Biomedical Research Institute, San Antonio Texas USA.
| | - Matthew Lopez
- Department of Psychology, Trinity University, San Antonio Texas 78212, USA; Southwest National Primate Research Center, Texas Biomedical Research Institute, San Antonio Texas USA
| | | | | | - Anna Buteau
- Department of Psychology, Trinity University, San Antonio Texas 78212, USA
| | - Addaline Alvarez
- Southwest National Primate Research Center, Texas Biomedical Research Institute, San Antonio Texas USA
| | - Corinna N Ross
- Southwest National Primate Research Center, Texas Biomedical Research Institute, San Antonio Texas USA; Texas Biomedical Research Institute, San Antonio Texas USA
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10
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Adamczyk B, Morawiec N, Mamak G, Boczek S, Brzęk D, Trędota N, Walocha P, Czuba ZP, Błachut M, Bartman W, Adamczyk-Sowa M. The Comparison of the Selected Parameters of Brain Injury and Interleukins in the CSF in Patients Diagnosed De Novo with RRMS Compared to the Control Group. Diagnostics (Basel) 2023; 13:3436. [PMID: 37998571 PMCID: PMC10670079 DOI: 10.3390/diagnostics13223436] [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: 09/04/2023] [Revised: 11/09/2023] [Accepted: 11/11/2023] [Indexed: 11/25/2023] Open
Abstract
BACKGROUND Multiple sclerosis (MS) is a chronic autoimmune disorder affecting the central nervous system (CNS). Due to the different phenotypes of the disease and non-specific symptoms of MS, there is a great need for a validated panel of biomarkers to facilitate the diagnosis, predict disease progression, and evaluate treatment outcomes. METHODS We determined the levels of the parameters of brain injury (NF-H, GPAF, S100B, and UCHL1) and the selected cytokines in the cerebrospinal fluid (CSF) in 101 patients diagnosed de novo with RRMS and 75 healthy controls. All determinations were made using the Bio-Plex method. RESULTS We found higher levels of NF-H and GFAP in the relapsing-remitting multiple sclerosis (RRMS) group compared to the controls. The concentrations of both molecules were significantly increased in patients with Gd+ lesions on brain MRI. The level of S100B did not differ significantly between the groups. UCHL1 concentrations were higher in the control group. We found some correlations between the selected cytokines, the levels of the parameters of brain injury, and the time from the first symptoms to the diagnosis of MS. CONCLUSIONS The role of the above molecules in MS is promising. However, further research is warranted to define their precise functions.
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Affiliation(s)
- Bożena Adamczyk
- Department of Neurology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia in Katowice, ul. 3 Maja 13-15, 41-800 Zabrze, Poland; (N.M.); (G.M.); (S.B.); (D.B.); (N.T.); (P.W.); (W.B.); (M.A.-S.)
| | - Natalia Morawiec
- Department of Neurology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia in Katowice, ul. 3 Maja 13-15, 41-800 Zabrze, Poland; (N.M.); (G.M.); (S.B.); (D.B.); (N.T.); (P.W.); (W.B.); (M.A.-S.)
| | - Gabriela Mamak
- Department of Neurology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia in Katowice, ul. 3 Maja 13-15, 41-800 Zabrze, Poland; (N.M.); (G.M.); (S.B.); (D.B.); (N.T.); (P.W.); (W.B.); (M.A.-S.)
| | - Sylwia Boczek
- Department of Neurology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia in Katowice, ul. 3 Maja 13-15, 41-800 Zabrze, Poland; (N.M.); (G.M.); (S.B.); (D.B.); (N.T.); (P.W.); (W.B.); (M.A.-S.)
| | - Dominika Brzęk
- Department of Neurology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia in Katowice, ul. 3 Maja 13-15, 41-800 Zabrze, Poland; (N.M.); (G.M.); (S.B.); (D.B.); (N.T.); (P.W.); (W.B.); (M.A.-S.)
| | - Natalia Trędota
- Department of Neurology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia in Katowice, ul. 3 Maja 13-15, 41-800 Zabrze, Poland; (N.M.); (G.M.); (S.B.); (D.B.); (N.T.); (P.W.); (W.B.); (M.A.-S.)
| | - Patryk Walocha
- Department of Neurology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia in Katowice, ul. 3 Maja 13-15, 41-800 Zabrze, Poland; (N.M.); (G.M.); (S.B.); (D.B.); (N.T.); (P.W.); (W.B.); (M.A.-S.)
| | - Zenon P. Czuba
- Department of Microbiology and Immunology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia in Katowice, ul. Jordana 19, 41-808 Zabrze, Poland;
| | - Michał Błachut
- Clinical Department of Psychiatry, Faculty of Medical Sciences in Zabrze, Medical University of Silesia in Katowice, 40-055 Katowice, Poland;
| | - Wojciech Bartman
- Department of Neurology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia in Katowice, ul. 3 Maja 13-15, 41-800 Zabrze, Poland; (N.M.); (G.M.); (S.B.); (D.B.); (N.T.); (P.W.); (W.B.); (M.A.-S.)
| | - Monika Adamczyk-Sowa
- Department of Neurology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia in Katowice, ul. 3 Maja 13-15, 41-800 Zabrze, Poland; (N.M.); (G.M.); (S.B.); (D.B.); (N.T.); (P.W.); (W.B.); (M.A.-S.)
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Shi S, Chu G, Zhang L, Yuan H, Madaniyati M, Zhou X, Wang L, Cai C, Pang W, Gao L, Yang G. Deubiquitinase UCHL1 regulates estradiol synthesis by stabilizing voltage-dependent anion channel 2. J Biol Chem 2023; 299:105316. [PMID: 37797697 PMCID: PMC10656229 DOI: 10.1016/j.jbc.2023.105316] [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: 07/18/2023] [Revised: 08/31/2023] [Accepted: 09/19/2023] [Indexed: 10/07/2023] Open
Abstract
Lack of estradiol production by granulosa cells blocks follicle development, causes failure of estrous initiation, and results in an inability to ovulate. The ubiquitin-proteasome system plays a critical role in maintaining protein homeostasis and stability of the estrous cycle, but knowledge of deubiquitination enzyme function in estradiol synthesis is limited. Here, we observe that the deubiquitinase ubiquitin C-terminal hydrolase 1 (UCHL1) is more significant in estrous sows and high litter-size sows than in nonestrous sows and low-yielding sows. Overexpression of UCHL1 promotes estradiol synthesis in granulosa cells, and interference with UCHL1 has the opposite effect. UCHL1 binds, deubiquitinates, and stabilizes voltage-dependent anion channel 2 (VDAC2), promoting the synthesis of the estradiol precursor pregnenolone. Cysteine 90 (C90) of UCHL1 is necessary for its deubiquitination activity, and Lys45 and Lys64 in VDAC2 are essential for its ubiquitination and degradation. In vivo, compared with WT and sh-NC-AAV groups, the estrus cycle of female mice is disturbed, estradiol level is decreased, and the number of antral follicles is decreased after the injection of sh-UCHL1-AAV into ovarian tissue. These findings suggest that UCHL1 promotes estradiol synthesis by stabilizing VDAC2 and identify UCHL1 as a candidate gene affecting reproductive performance.
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Affiliation(s)
- Shengjie Shi
- College of Animal Science and Technology, Northwest A&F University, Yangling, China; Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Yangling, China
| | - Guiyan Chu
- College of Animal Science and Technology, Northwest A&F University, Yangling, China; Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Yangling, China
| | - Lutong Zhang
- College of Animal Science and Technology, Northwest A&F University, Yangling, China; Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Yangling, China
| | - Huan Yuan
- College of Animal Science and Technology, Northwest A&F University, Yangling, China; Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Yangling, China
| | - Mielie Madaniyati
- College of Animal Science and Technology, Northwest A&F University, Yangling, China; Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Yangling, China
| | - Xiaoge Zhou
- College of Animal Science and Technology, Northwest A&F University, Yangling, China; Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Yangling, China
| | - Liguang Wang
- College of Animal Science and Technology, Northwest A&F University, Yangling, China; Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Yangling, China
| | - Chuanjiang Cai
- College of Animal Science and Technology, Northwest A&F University, Yangling, China
| | - Weijun Pang
- College of Animal Science and Technology, Northwest A&F University, Yangling, China; Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Yangling, China
| | - Lei Gao
- College of Animal Science and Technology, Northwest A&F University, Yangling, China; Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Yangling, China
| | - Gongshe Yang
- College of Animal Science and Technology, Northwest A&F University, Yangling, China; Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Yangling, China.
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Rogatzki MJ, Szeghy RE, Stute NL, Province VM, Augenreich MA, Stickford JL, Stickford AS, Hanson ED, Ratchford SM. Plasma UCHL1, GFAP, Tau, and NfL Are Not Different in Young Healthy Persons With Mild COVID-19 Symptoms Early in the Pandemic: A Pilot Study. Neurotrauma Rep 2023; 4:330-341. [PMID: 37284701 PMCID: PMC10240333 DOI: 10.1089/neur.2023.0014] [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] [Indexed: 06/08/2023] Open
Abstract
Elevated levels of brain injury biomarkers have been found primarily in middle-aged or older persons experiencing moderate-to-severe COVID-19 symptoms. However, there is little research in young adults, and there is concern that COVID-19 causes brain injury even in the absence of moderate-to-severe symptoms. Therefore, the purpose of our study was to investigate whether neurofilament light (NfL), glial fibrillary acidic protein (GFAP), tau, or ubiquitin carboxyl-terminal esterase L1 (UCHL1) are elevated in the plasma of young adults with mild COVID-19 symptoms. Twelve participants diagnosed with COVID-19 had plasma collected 1, 2, 3, and 4 months after diagnosis to determine whether NfL, GFAP, tau, and UCHL1 concentrations increased over time or whether plasma concentrations were elevated compared with COVID-19-naïve participants. We also compared plasma NfL, GFAP, tau, and UCHL1 concentrations between sexes. Our results showed no difference between NfL, GFAP, tau, and UCHL1 concentrations in COVID-19-naïve participants and COVID-19-positive participants at any of the four time points (p = 0.771). Within the COVID-19-positive participants, UCHL1 levels were higher at month 3 after diagnosis compared to month 1 or month 2 (p = 0.027). Between sexes, females were found to have higher UCHL1 (p = 0.003) and NfL (p = 0.037) plasma concentrations compared to males, whereas males had higher plasma tau concentrations than females (p = 0.024). Based on our data, it appears that mild COVID-19 in young adults does not increase plasma NfL, GFAP, tau, or UCHL1.
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Affiliation(s)
- Matthew J. Rogatzki
- Department of Public Health and Exercise Science, Appalachian State University, Boone, North Carolina, USA
| | - Rachel E. Szeghy
- Department of Public Health and Exercise Science, Appalachian State University, Boone, North Carolina, USA
| | - Nina L. Stute
- School of Kinesiology, Auburn University, Auburn, Alabama, USA
| | - Valesha M. Province
- Department of Cardiovascular and Metabolic Sciences, The Cleveland Clinic Foundation, Cleveland, Ohio, USA
| | - Marc A. Augenreich
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, Missouri, USA
| | - Jonathon L. Stickford
- Department of Public Health and Exercise Science, Appalachian State University, Boone, North Carolina, USA
| | - Abigail S.L. Stickford
- Department of Public Health and Exercise Science, Appalachian State University, Boone, North Carolina, USA
| | - Erik D. Hanson
- Department of Exercise and Sport Science, University of North Carolina, Chapel Hill, North Carolina, USA
| | - Stephen M. Ratchford
- Department of Public Health and Exercise Science, Appalachian State University, Boone, North Carolina, USA
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13
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Bouron A, Aubry L, Loreth D, Fauvarque MO, Meyer-Schwesinger C. Role of the deubiquitinating enzyme UCH-L1 in mitochondrial function. Front Cell Neurosci 2023; 17:1149954. [PMID: 37032833 PMCID: PMC10076731 DOI: 10.3389/fncel.2023.1149954] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Accepted: 03/10/2023] [Indexed: 04/11/2023] Open
Affiliation(s)
- Alexandre Bouron
- Université Grenoble Alpes, Inserm, CEA, UA13, BGE, Grenoble, France
- *Correspondence: Alexandre Bouron
| | - Laurence Aubry
- Université Grenoble Alpes, Inserm, CEA, UA13, BGE, Grenoble, France
| | - Desirée Loreth
- Institute of Cellular and Integrative Physiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | | | - Catherine Meyer-Schwesinger
- Institute of Cellular and Integrative Physiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
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