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Marino R, Buccarello L, Hassanzadeh K, Akhtari K, Palaniappan S, Corbo M, Feligioni M. A novel cell-permeable peptide prevents protein SUMOylation and supports the mislocalization and aggregation of TDP-43. Neurobiol Dis 2023; 188:106342. [PMID: 37918759 DOI: 10.1016/j.nbd.2023.106342] [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: 06/16/2023] [Revised: 10/25/2023] [Accepted: 10/30/2023] [Indexed: 11/04/2023] Open
Abstract
SUMOylation is a post-translational modification (PTM) that exerts a regulatory role in different cellular processes, including protein localization, aggregation, and biological activities. It consists of the dynamic formation of covalent isopeptide bonds between a family member of the Small Ubiquitin Like Modifiers (SUMOs) and the target proteins. Interestingly, it is a cellular mechanism implicated in several neurodegenerative pathologies and potentially it could become a new therapeutic target; however, there are very few pharmacological tools to modulate the SUMOylation process. In this study, we have designed and tested the activity of a novel small cell-permeable peptide, COV-1, in a neuroblastoma cell line that specifically prevents protein SUMOylation. COV-1 inhibits UBC9-protein target interaction and efficiently decreases global SUMO-1ylation. Moreover, it can perturb RanGAP-1 perinuclear localization by inducing the downregulation of UBC9. In parallel, we found that COV-1 causes an increase in the ubiquitin degradation system up to its engulfment while enhancing the autophagic flux. Surprisingly, COV-1 modifies protein aggregation, and specifically it mislocalizes TDP-43 within cells, inducing its aggregation and co-localization with SUMO-1. These data suggest that COV-1 could be taken into future consideration as an interesting pharmacological tool to study the cellular cascade effects of SUMOylation prevention.
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Affiliation(s)
- R Marino
- EBRI Rita Levi-Montalcini Foundation, Rome 00161, Italy
| | | | - K Hassanzadeh
- EBRI Rita Levi-Montalcini Foundation, Rome 00161, Italy
| | - K Akhtari
- Department of Physics, University of Kurdistan, Sanandaj 871, Iran
| | - S Palaniappan
- EBRI Rita Levi-Montalcini Foundation, Rome 00161, Italy
| | - M Corbo
- Department of Neurorehabilitation Sciences, Casa di Cura Igea, Milan 20144, Italy
| | - M Feligioni
- EBRI Rita Levi-Montalcini Foundation, Rome 00161, Italy; Department of Neurorehabilitation Sciences, Casa di Cura Igea, Milan 20144, Italy..
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2
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Uras I, Karayel-Basar M, Sahin B, Baykal AT. Detection of early proteomic alterations in 5xFAD Alzheimer's disease neonatal mouse model via MALDI-MSI. Alzheimers Dement 2023; 19:4572-4589. [PMID: 36934297 DOI: 10.1002/alz.13008] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 01/18/2023] [Accepted: 01/19/2023] [Indexed: 03/20/2023]
Abstract
Alzheimer's disease (AD) is a debilitating neurodegenerative disorder, characterized by memory deficit and dementia. AD is considered a multifactorial disorder where multiple processes like amyloid-beta and tau accumulation, axonal degeneration, synaptic plasticity, and autophagic processes plays an important role. In this study, the spatial proteomic differences in the neonatal 5xFAD brain tissue were investigated using MALDI-MSI coupled to LC-MS/MS, and the statistically significantly altered proteins were associated with AD. Thirty-five differentially expressed proteins (DEPs) between the brain tissues of neonatal 5xFAD and their littermate mice were detected via MALDI-MSI technique. Among the 35 proteins identified, 26 of them were directly associated with AD. Our results indicated a remarkable resemblance in the protein expression profiles of neonatal 5xFAD brain when compared to AD patient specimens or AD mouse models. These findings showed that the molecular alterations in the AD brain existed even at birth and that some proteins are neurodegenerative presages in neonatal AD brain. HIGHLIGHTS: Spatial proteomic alterations in the 5xFAD mouse brain compared to the littermate. 26 out of 35 differentially expressed proteins associated with Alzheimer's disease (AD). Molecular alterations and neurodegenerative presages in neonatal AD brain. Alterations in the synaptic function an early and common neurobiological thread.
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Affiliation(s)
- Irep Uras
- Department of Biochemistry and Molecular Biology, Institute of Health Sciences, Acibadem Mehmet Ali Aydinlar University, Istanbul, Turkey
| | - Merve Karayel-Basar
- Department of Biochemistry and Molecular Biology, Institute of Health Sciences, Acibadem Mehmet Ali Aydinlar University, Istanbul, Turkey
| | - Betul Sahin
- Acibadem Labmed Clinical Laboratories, Istanbul, Turkey
| | - Ahmet Tarik Baykal
- Department of Medical Biochemistry, Faculty of Medicine, Acibadem Mehmet Ali Aydinlar University, Istanbul, Turkey
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3
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Patrick MB, Omar N, Werner CT, Mitra S, Jarome TJ. The ubiquitin-proteasome system and learning-dependent synaptic plasticity - A 10 year update. Neurosci Biobehav Rev 2023; 152:105280. [PMID: 37315660 DOI: 10.1016/j.neubiorev.2023.105280] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Revised: 05/22/2023] [Accepted: 06/08/2023] [Indexed: 06/16/2023]
Abstract
Over 25 years ago, a seminal paper demonstrated that the ubiquitin-proteasome system (UPS) was involved in activity-dependent synaptic plasticity. Interest in this topic began to expand around 2008 following another seminal paper showing that UPS-mediated protein degradation controlled the "destabilization" of memories following retrieval, though we remained with only a basic understanding of how the UPS regulated activity- and learning-dependent synaptic plasticity. However, over the last 10 years there has been an explosion of papers on this topic that has significantly changed our understanding of how ubiquitin-proteasome signaling regulates synaptic plasticity and memory formation. Importantly, we now know that the UPS controls much more than protein degradation, is involved in plasticity underlying drugs of abuse and that there are significant sex differences in how ubiquitin-proteasome signaling is used for memory storage processes. Here, we aim to provide a critical 10-year update on the role of ubiquitin-proteasome signaling in synaptic plasticity and memory formation, including updated cellular models of how ubiquitin-proteasome activity could be regulating learning-dependent synaptic plasticity in the brain.
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Affiliation(s)
- Morgan B Patrick
- School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA
| | - Nour Omar
- School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA
| | - Craig T Werner
- Department of Pharmacology and Physiology, Oklahoma State University Center for Health Sciences, Tulsa, OK, USA; National Center for Wellness and Recovery, Oklahoma State University Center for Health Sciences, Tulsa, OK, USA.
| | - Swarup Mitra
- Department of Biomedical Sciences, Joan C Edwards School of Medicine, Marshall University, Huntington, WV, USA.
| | - Timothy J Jarome
- School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA; School of Animal Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA.
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4
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Reduced SUMOylation of Nrf2 signaling contributes to its inhibition induced by amyloid-β. Neurosci Lett 2023; 799:137118. [PMID: 36764479 DOI: 10.1016/j.neulet.2023.137118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Revised: 01/15/2023] [Accepted: 02/06/2023] [Indexed: 02/11/2023]
Abstract
Oxidative stress induced by amyloid-β (Aβ) has been considered as one of the important mechanisms in the development of Alzheimer disease (AD). The inhibition of endogenous antioxidant Nrf2 signaling in the brain of AD patients aggravates the oxidative damage, however, the causes of Nrf2 signaling inhibition are unclear. It is reported that smallubiquitin-like modification (SUMOylation) is involved in the process of oxidative injury. To investigate whether and how SUMOylation was involved in the inhibition of Nrf2 signaling pathway induced by Aβ, Aβ intrahippocampal injection rat model and Aβ treated SH-SY5Y cell model were used in the current study. Small interfering RNA and lentivirus transfection were used to intervene SUMOylation, and the level of SUMOylation was assessed by immunoprecipitation. The present in vivo and in vitro studies revealed that SUMOylation levels of Nrf2 and MafF, as well as the overall SUMOylation level were reduced under long-term Aβ insult. Meanwhile, the binding of Nrf2 to MafF was decreased, accompanied by low interaction with antioxidant response element (ARE) area of gene. Down-regulation of SUMO protein exacerbated the Aβ-induced inhibition of Nrf2 signaling pathway, while, enhancement of SUMOylation of Nrf2 and MafF by overexpression of Ubc9 reversed this process. These results imply that reduction in SUMOylation induced by Aβ contributed to the inhibition of Nrf2 signaling, and SUMOylation might be a potential therapeutic target of AD.
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5
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TREM2 and Microglia Contribute to the Synaptic Plasticity: from Physiology to Pathology. Mol Neurobiol 2023; 60:512-523. [PMID: 36318443 DOI: 10.1007/s12035-022-03100-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Accepted: 10/20/2022] [Indexed: 11/07/2022]
Abstract
Synapses are bridges for information transmission in the central nervous system (CNS), and synaptic plasticity is fundamental for the normal function of synapses, contributing substantially to learning and memory. Numerous studies have proven that microglia can participate in the occurrence and progression of neurodegenerative diseases (NDDs), such as Alzheimer's disease (AD), by regulating synaptic plasticity. In this review, we summarize the main characteristics of synapses and synaptic plasticity under physiological and pathological conditions. We elaborate the origin and development of microglia and the two well-known microglial signaling pathways that regulate synaptic plasticity. We also highlight the unique role of triggering receptor expressed on myeloid cells 2 (TREM2) in microglia-mediated regulation of synaptic plasticity and its relationship with AD. Finally, we propose four possible ways in which TREM2 is involved in regulating synaptic plasticity. This review will help researchers understand how NDDs develop from the perspective of synaptic plasticity.
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6
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Pharmacological Activities of Ginkgolic Acids in Relation to Autophagy. Pharmaceuticals (Basel) 2022; 15:ph15121469. [PMID: 36558920 PMCID: PMC9785683 DOI: 10.3390/ph15121469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 11/14/2022] [Accepted: 11/23/2022] [Indexed: 11/29/2022] Open
Abstract
Plant-derived natural compounds are widely used as alternative medicine in healthcare throughout the world. Ginkgolic acids, the phenolic compounds isolated from the leaves and seeds of Ginkgo biloba, are among the chemicals that have been explored the most. Ginkgolic acids exhibit cytotoxic activity against a vast number of human cancers in various preclinical models in vitro and in vivo. Additionally, the pharmacological activities of ginkgolic acids are also involved in antidiabetic, anti-bacteria, anti-virus, anti-fibrosis, and reno/neuroprotection. Autophagy as a highly conserved self-cleaning process that plays a crucial role in maintaining cellular and tissue homeostasis and has been proven to serve as a protective mechanism in the pathogenesis of many diseases, including neurodegenerative diseases, cancer, and infectious diseases. In this review, we surveyed the pharmacological activities of the major three forms of ginkgolic acids (C13:0, C15:1, and C17:1) that are linked to autophagic activity and the mechanisms to which these compounds may participate. A growing body of studies in last decade suggests that ginkgolic acids may represent promising chemical compounds in future drug development and an alternative remedy in humans.
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7
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Mandel N, Agarwal N. Role of SUMOylation in Neurodegenerative Diseases. Cells 2022; 11:3395. [PMID: 36359791 PMCID: PMC9654019 DOI: 10.3390/cells11213395] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 10/23/2022] [Accepted: 10/24/2022] [Indexed: 09/26/2023] Open
Abstract
Neurodegenerative diseases (NDDs) are irreversible, progressive diseases with no effective treatment. The hallmark of NDDs is the aggregation of misfolded, modified proteins, which impair neuronal vulnerability and cause brain damage. The loss of synaptic connection and the progressive loss of neurons result in cognitive defects. Several dysregulated proteins and overlapping molecular mechanisms contribute to the pathophysiology of NDDs. Post-translational modifications (PTMs) are essential regulators of protein function, trafficking, and maintaining neuronal hemostasis. The conjugation of a small ubiquitin-like modifier (SUMO) is a reversible, dynamic PTM required for synaptic and cognitive function. The onset and progression of neurodegenerative diseases are associated with aberrant SUMOylation. In this review, we have summarized the role of SUMOylation in regulating critical proteins involved in the onset and progression of several NDDs.
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Affiliation(s)
| | - Nitin Agarwal
- Institute of Pharmacology, Medical Faculty Heidelberg, Heidelberg University, 69120 Heidelberg, Germany
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8
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Gustin A, Navabpour S, Farrell K, Martin K, DuVall J, Keith Ray W, Helm RF, Jarome TJ. Protein SUMOylation is a sex-specific regulator of fear memory formation in the amygdala. Behav Brain Res 2022; 430:113928. [PMID: 35597476 PMCID: PMC10431910 DOI: 10.1016/j.bbr.2022.113928] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 04/11/2022] [Accepted: 05/12/2022] [Indexed: 11/25/2022]
Abstract
Strong evidence has implicated ubiquitin signaling in the process of fear memory formation. While less abundant than ubiquitination, evidence suggests that protein SUMOylation may also be involved in fear memory formation in neurons. However, the importance of amygdala protein SUMOylation in fear memory formation has never been directly examined. Furthermore, while recent evidence indicates that males and females differ significantly in the requirement for ubiquitin signaling during fear memory formation, whether sex differences also exist in the importance of protein SUMOylation to this process remains unknown. Here we found that males and females differ in the requirement for protein SUMOylation in the amygdala during fear memory formation. Western blot analysis revealed that while females had higher resting levels of SUMOylation, both sexes showed global increases following fear conditioning. However, SUMOylation-specific proteomic analysis revealed that only females have increased targeting of individual proteins by SUMOylation following fear conditioning, some of which were heat shock proteins. This suggests that protein SUMOylation is more robustly engaged in the amygdala of females following fear conditioning. In vivo siRNA mediated knockdown of Ube2i, the coding gene for the essential E2 ligase for SUMOylation conjugation, in the amygdala impaired fear memory in males without any effect in females. Importantly, higher siRNA concentrations than what was needed to impair memory in males reduced Ube2i levels in the amygdala of females but resulted in an increase in SUMOylation levels, suggesting a compensatory effect in females that was not observed in males. Collectively, these data reveal a novel, sex-specific role for protein SUMOylation in the amygdala during fear memory formation and expand our understanding of how ubiquitin-like signaling regulates memory formation.
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Affiliation(s)
- Aspen Gustin
- Department of Animal and Poultry Science, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA
| | - Shaghayegh Navabpour
- Fralin Biomedical Research Institute, Department of Translational Biology, Medicine and Health, Virginia Polytechnic Institute and State University, Roanoke, VA, USA
| | - Kayla Farrell
- Department of Animal and Poultry Science, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA
| | - Kiley Martin
- School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA
| | - Jessica DuVall
- Department of Animal and Poultry Science, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA
| | - W Keith Ray
- Department of Biochemistry, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA
| | - Richard F Helm
- Department of Biochemistry, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA
| | - Timothy J Jarome
- Department of Animal and Poultry Science, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA; Fralin Biomedical Research Institute, Department of Translational Biology, Medicine and Health, Virginia Polytechnic Institute and State University, Roanoke, VA, USA; School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA.
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9
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Jeoung SW, Park HS, Ryoo ZY, Cho DH, Lee HS, Ryu HY. SUMOylation and Major Depressive Disorder. Int J Mol Sci 2022; 23:ijms23148023. [PMID: 35887370 PMCID: PMC9316168 DOI: 10.3390/ijms23148023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 07/19/2022] [Accepted: 07/19/2022] [Indexed: 12/04/2022] Open
Abstract
Since the discovery of the small ubiquitin-like modifier (SUMO) protein in 1995, SUMOylation has been considered a crucial post-translational modification in diverse cellular functions. In neurons, SUMOylation has various roles ranging from managing synaptic transmitter release to maintaining mitochondrial integrity and determining neuronal health. It has been discovered that neuronal dysfunction is a key factor in the development of major depressive disorder (MDD). PubMed and Google Scholar databases were searched with keywords such as ‘SUMO’, ‘neuronal plasticity’, and ‘depression’ to obtain relevant scientific literature. Here, we provide an overview of recent studies demonstrating the role of SUMOylation in maintaining neuronal function in participants suffering from MDD.
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Affiliation(s)
- Seok-Won Jeoung
- BK21 FOUR KNU Creative BioResearch Group, School of Life Sciences, College of National Sciences, Kyungpook National University, Daegu 41566, Korea; (S.-W.J.); (Z.Y.R.); (D.-H.C.); (H.-S.L.)
- Brain Science and Engineering Institute, Kyungpook National University, Daegu 41566, Korea
| | - Hyun-Sun Park
- Department of Biochemistry, Inje University College of Medicine, Busan 50834, Korea;
| | - Zae Young Ryoo
- BK21 FOUR KNU Creative BioResearch Group, School of Life Sciences, College of National Sciences, Kyungpook National University, Daegu 41566, Korea; (S.-W.J.); (Z.Y.R.); (D.-H.C.); (H.-S.L.)
| | - Dong-Hyung Cho
- BK21 FOUR KNU Creative BioResearch Group, School of Life Sciences, College of National Sciences, Kyungpook National University, Daegu 41566, Korea; (S.-W.J.); (Z.Y.R.); (D.-H.C.); (H.-S.L.)
| | - Hyun-Shik Lee
- BK21 FOUR KNU Creative BioResearch Group, School of Life Sciences, College of National Sciences, Kyungpook National University, Daegu 41566, Korea; (S.-W.J.); (Z.Y.R.); (D.-H.C.); (H.-S.L.)
| | - Hong-Yeoul Ryu
- BK21 FOUR KNU Creative BioResearch Group, School of Life Sciences, College of National Sciences, Kyungpook National University, Daegu 41566, Korea; (S.-W.J.); (Z.Y.R.); (D.-H.C.); (H.-S.L.)
- Brain Science and Engineering Institute, Kyungpook National University, Daegu 41566, Korea
- Correspondence: ; Tel.: +82-53-950-6352
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10
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Long Y, Cheng Y, Yang J, Yang T, Lai Y. Abeta-induced Presynaptic Release of UBC9 through Extracellular Vesicles involves SNAP23. Neurosci Lett 2022; 785:136771. [DOI: 10.1016/j.neulet.2022.136771] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 06/20/2022] [Accepted: 06/30/2022] [Indexed: 11/26/2022]
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11
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Ubiquitin and Ubiquitin-like Proteins in Cancer, Neurodegenerative Disorders, and Heart Diseases. Int J Mol Sci 2022; 23:ijms23095053. [PMID: 35563444 PMCID: PMC9105348 DOI: 10.3390/ijms23095053] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 04/28/2022] [Accepted: 04/29/2022] [Indexed: 01/14/2023] Open
Abstract
Post-translational modification (PTM) is an essential mechanism for enhancing the functional diversity of proteins and adjusting their signaling networks. The reversible conjugation of ubiquitin (Ub) and ubiquitin-like proteins (Ubls) to cellular proteins is among the most prevalent PTM, which modulates various cellular and physiological processes by altering the activity, stability, localization, trafficking, or interaction networks of its target molecules. The Ub/Ubl modification is tightly regulated as a multi-step enzymatic process by enzymes specific to this family. There is growing evidence that the dysregulation of Ub/Ubl modifications is associated with various diseases, providing new targets for drug development. In this review, we summarize the recent progress in understanding the roles and therapeutic targets of the Ub and Ubl systems in the onset and progression of human diseases, including cancer, neurodegenerative disorders, and heart diseases.
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Mohanraj N, Joshi NS, Poulose R, Patil RR, Santhoshkumar R, Kumar A, Waghmare GP, Saha AK, Haider SZ, Markandeya YS, Dey G, Rao LT, Govindaraj P, Mehta B. A proteomic study to unveil lead toxicity-induced memory impairments invoked by synaptic dysregulation. Toxicol Rep 2022; 9:1501-1513. [DOI: 10.1016/j.toxrep.2022.07.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 07/02/2022] [Accepted: 07/05/2022] [Indexed: 11/17/2022] Open
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13
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Le T, Sadique N, Housel LM, Poyraz AS, Takeuchi ES, Takeuchi KJ, Marschilok AC, Liu P. Discharging Behavior of Hollandite α-MnO 2 in a Hydrated Zinc-Ion Battery. ACS APPLIED MATERIALS & INTERFACES 2021; 13:59937-59949. [PMID: 34898172 DOI: 10.1021/acsami.1c18849] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Hollandite, α-MnO2, is of interest as a prospective cathode material for hydrated zinc-ion batteries (ZIBs); however, the mechanistic understanding of the discharge process remains limited. Herein, a systematic study on the initial discharge of an α-MnO2 cathode under a hydrated environment was reported using density functional theory (DFT) in combination with complementary experiments, where the DFT predictions well described the experimental measurements on discharge voltages and manganese oxidation states. According to the DFT calculations, both protons (H+) and zinc ions (Zn2+) contribute to the discharging potentials of α-MnO2 observed experimentally, where the presence of water plays an essential role during the process. This study provides valuable insights into the mechanistic understanding of the discharge of α-MnO2 in hydrated ZIBs, emphasizing the crucial interplay among the H2O molecules, the intercalated Zn2+ or H+ ions, and the Mn4+ ions on the tunnel wall to enhance the stability of discharged states and, thus, the electrochemical performances in hydrated ZIBs.
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Affiliation(s)
- Thanh Le
- Department of Chemistry, State University of New York at Stony Brook, Stony Brook, New York 11794, United States
| | - Nahian Sadique
- Department of Chemistry, State University of New York at Stony Brook, Stony Brook, New York 11794, United States
- Institute for Electrochemically Stored Energy, State University of New York at Stony Brook, Stony Brook, New York 11794, United States
| | - Lisa M Housel
- Institute for Electrochemically Stored Energy, State University of New York at Stony Brook, Stony Brook, New York 11794, United States
- Interdisciplinary Science Department, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Altug S Poyraz
- Department of Chemistry, Kennesaw State University, Kennesaw, Georgia 30144, United States
| | - Esther S Takeuchi
- Department of Chemistry, State University of New York at Stony Brook, Stony Brook, New York 11794, United States
- Institute for Electrochemically Stored Energy, State University of New York at Stony Brook, Stony Brook, New York 11794, United States
- Interdisciplinary Science Department, Brookhaven National Laboratory, Upton, New York 11973, United States
- Department of Materials Science and Chemical Engineering, State University of New York at Stony Brook, Stony Brook, New York 11794, United States
| | - Kenneth J Takeuchi
- Department of Chemistry, State University of New York at Stony Brook, Stony Brook, New York 11794, United States
- Institute for Electrochemically Stored Energy, State University of New York at Stony Brook, Stony Brook, New York 11794, United States
- Interdisciplinary Science Department, Brookhaven National Laboratory, Upton, New York 11973, United States
- Department of Materials Science and Chemical Engineering, State University of New York at Stony Brook, Stony Brook, New York 11794, United States
| | - Amy C Marschilok
- Department of Chemistry, State University of New York at Stony Brook, Stony Brook, New York 11794, United States
- Institute for Electrochemically Stored Energy, State University of New York at Stony Brook, Stony Brook, New York 11794, United States
- Interdisciplinary Science Department, Brookhaven National Laboratory, Upton, New York 11973, United States
- Department of Materials Science and Chemical Engineering, State University of New York at Stony Brook, Stony Brook, New York 11794, United States
| | - Ping Liu
- Department of Chemistry, State University of New York at Stony Brook, Stony Brook, New York 11794, United States
- Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973, United States
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14
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Cai S, Moutal A, Yu J, Chew LA, Isensee J, Chawla R, Gomez K, Luo S, Zhou Y, Chefdeville A, Madura C, Perez-Miller S, Bellampalli SS, Dorame A, Scott DD, François-Moutal L, Shan Z, Woodward T, Gokhale V, Hohmann AG, Vanderah TW, Patek M, Khanna M, Hucho T, Khanna R. Selective targeting of NaV1.7 via inhibition of the CRMP2-Ubc9 interaction reduces pain in rodents. Sci Transl Med 2021; 13:eabh1314. [PMID: 34757807 DOI: 10.1126/scitranslmed.abh1314] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The voltage-gated sodium NaV1.7 channel, critical for sensing pain, has been actively targeted by drug developers; however, there are currently no effective and safe therapies targeting NaV1.7. Here, we tested whether a different approach, indirect NaV1.7 regulation, could have antinociceptive effects in preclinical models. We found that preventing addition of small ubiquitin-like modifier (SUMO) on the NaV1.7-interacting cytosolic collapsin response mediator protein 2 (CRMP2) blocked NaV1.7 functions and had antinociceptive effects in rodents. In silico targeting of the SUMOylation site in CRMP2 (Lys374) identified >200 hits, of which compound 194 exhibited selective in vitro and ex vivo NaV1.7 engagement. Orally administered 194 was not only antinociceptive in preclinical models of acute and chronic pain but also demonstrated synergy alongside other analgesics—without eliciting addiction, rewarding properties, or neurotoxicity. Analgesia conferred by 194 was opioid receptor dependent. Our results demonstrate that 194 is a first-in-class protein-protein inhibitor that capitalizes on CRMP2-NaV1.7 regulation to deliver safe analgesia in rodents.
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Affiliation(s)
- Song Cai
- Department of Pharmacology, College of Medicine, The University of Arizona, Tucson, AZ 85724, USA
| | - Aubin Moutal
- Department of Pharmacology, College of Medicine, The University of Arizona, Tucson, AZ 85724, USA
| | - Jie Yu
- Department of Pharmacology, College of Medicine, The University of Arizona, Tucson, AZ 85724, USA
| | - Lindsey A Chew
- Department of Pharmacology, College of Medicine, The University of Arizona, Tucson, AZ 85724, USA
| | - Jörg Isensee
- Department of Anesthesiology and Intensive Care Medicine, Translational Pain Research, University Hospital of Cologne, University Cologne, Joseph-Stelzmann-Str 9, Cologne D-50931, Germany
| | - Reena Chawla
- BIO5 Institute, 1657 East Helen Street, Tucson, AZ 85721, USA
| | - Kimberly Gomez
- Department of Pharmacology, College of Medicine, The University of Arizona, Tucson, AZ 85724, USA
| | - Shizhen Luo
- Department of Pharmacology, College of Medicine, The University of Arizona, Tucson, AZ 85724, USA
| | - Yuan Zhou
- Department of Pharmacology, College of Medicine, The University of Arizona, Tucson, AZ 85724, USA
| | - Aude Chefdeville
- Department of Pharmacology, College of Medicine, The University of Arizona, Tucson, AZ 85724, USA
| | - Cynthia Madura
- Department of Pharmacology, College of Medicine, The University of Arizona, Tucson, AZ 85724, USA
| | - Samantha Perez-Miller
- Department of Pharmacology, College of Medicine, The University of Arizona, Tucson, AZ 85724, USA
- Center for Innovation in Brain Sciences, University of Arizona, Tucson, AZ 85721, USA
| | - Shreya Sai Bellampalli
- Department of Pharmacology, College of Medicine, The University of Arizona, Tucson, AZ 85724, USA
| | - Angie Dorame
- Department of Pharmacology, College of Medicine, The University of Arizona, Tucson, AZ 85724, USA
| | - David D Scott
- Department of Pharmacology, College of Medicine, The University of Arizona, Tucson, AZ 85724, USA
| | - Liberty François-Moutal
- Department of Pharmacology, College of Medicine, The University of Arizona, Tucson, AZ 85724, USA
| | - Zhiming Shan
- Department of Pharmacology, College of Medicine, The University of Arizona, Tucson, AZ 85724, USA
| | - Taylor Woodward
- Department of Psychological and Brain Sciences, Program in Neuroscience and Gill Center for Biomolecular Science, Indiana University, Bloomington, IN 47405-2204, USA
| | - Vijay Gokhale
- BIO5 Institute, 1657 East Helen Street, Tucson, AZ 85721, USA
- College of Pharmacy, University of Arizona, 1703 East Mabel Street, Tucson, AZ 85721, USA
| | - Andrea G Hohmann
- Department of Psychological and Brain Sciences, Program in Neuroscience and Gill Center for Biomolecular Science, Indiana University, Bloomington, IN 47405-2204, USA
| | - Todd W Vanderah
- Department of Pharmacology, College of Medicine, The University of Arizona, Tucson, AZ 85724, USA
- Comprehensive Pain and Addiction Center, The University of Arizona, Tucson, AZ 85724, USA
| | - Marcel Patek
- Regulonix LLC, 1555 E. Entrada Segunda, Tucson, AZ 85718, USA
- Bright Rock Path LLC, Tucson, AZ 85724, USA
| | - May Khanna
- Department of Pharmacology, College of Medicine, The University of Arizona, Tucson, AZ 85724, USA
- BIO5 Institute, 1657 East Helen Street, Tucson, AZ 85721, USA
- Center for Innovation in Brain Sciences, University of Arizona, Tucson, AZ 85721, USA
- Regulonix LLC, 1555 E. Entrada Segunda, Tucson, AZ 85718, USA
| | - Tim Hucho
- Department of Anesthesiology and Intensive Care Medicine, Translational Pain Research, University Hospital of Cologne, University Cologne, Joseph-Stelzmann-Str 9, Cologne D-50931, Germany
| | - Rajesh Khanna
- Department of Pharmacology, College of Medicine, The University of Arizona, Tucson, AZ 85724, USA
- BIO5 Institute, 1657 East Helen Street, Tucson, AZ 85721, USA
- Center for Innovation in Brain Sciences, University of Arizona, Tucson, AZ 85721, USA
- Comprehensive Pain and Addiction Center, The University of Arizona, Tucson, AZ 85724, USA
- Regulonix LLC, 1555 E. Entrada Segunda, Tucson, AZ 85718, USA
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15
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Dick K, Pattang A, Hooker J, Nissan N, Sadowski M, Barnes B, Tan LH, Burnside D, Phanse S, Aoki H, Babu M, Dehne F, Golshani A, Cober ER, Green JR, Samanfar B. Human-Soybean Allergies: Elucidation of the Seed Proteome and Comprehensive Protein-Protein Interaction Prediction. J Proteome Res 2021; 20:4925-4947. [PMID: 34582199 DOI: 10.1021/acs.jproteome.1c00138] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The soybean crop, Glycine max (L.) Merr., is consumed by humans, Homo sapiens, worldwide. While the respective bodies of literature and -omics data for each of these organisms are extensive, comparatively few studies investigate the molecular biological processes occurring between the two. We are interested in elucidating the network of protein-protein interactions (PPIs) involved in human-soybean allergies. To this end, we leverage state-of-the-art sequence-based PPI predictors amenable to predicting the enormous comprehensive interactome between human and soybean. A network-based analytical approach is proposed, leveraging similar interaction profiles to identify candidate allergens and proteins involved in the allergy response. Interestingly, the predicted interactome can be explored from two complementary perspectives: which soybean proteins are predicted to interact with specific human proteins and which human proteins are predicted to interact with specific soybean proteins. A total of eight proteins (six specific to the human proteome and two to the soy proteome) have been identified and supported by the literature to be involved in human health, specifically related to immunological and neurological pathways. This study, beyond generating the most comprehensive human-soybean interactome to date, elucidated a soybean seed interactome and identified several proteins putatively consequential to human health.
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Affiliation(s)
- Kevin Dick
- Department of Systems and Computer Engineering, Carleton University, Ottawa, Ontario, Canada K1S 5B6
| | - Arezo Pattang
- Agriculture and Agri-Food Canada, Ottawa Research and Development Centre, Ottawa, Ontario, Canada K1A 0C6
- Department of Biology and Institute of Biochemistry, and Ottawa Institute of Systems Biology, Carleton University, Ottawa, Ontario, Canada K1S 5B6
| | - Julia Hooker
- Agriculture and Agri-Food Canada, Ottawa Research and Development Centre, Ottawa, Ontario, Canada K1A 0C6
- Department of Biology and Institute of Biochemistry, and Ottawa Institute of Systems Biology, Carleton University, Ottawa, Ontario, Canada K1S 5B6
| | - Nour Nissan
- Agriculture and Agri-Food Canada, Ottawa Research and Development Centre, Ottawa, Ontario, Canada K1A 0C6
- Department of Biology and Institute of Biochemistry, and Ottawa Institute of Systems Biology, Carleton University, Ottawa, Ontario, Canada K1S 5B6
| | - Michael Sadowski
- Agriculture and Agri-Food Canada, Ottawa Research and Development Centre, Ottawa, Ontario, Canada K1A 0C6
- Department of Biology and Institute of Biochemistry, and Ottawa Institute of Systems Biology, Carleton University, Ottawa, Ontario, Canada K1S 5B6
| | - Bradley Barnes
- Department of Systems and Computer Engineering, Carleton University, Ottawa, Ontario, Canada K1S 5B6
| | - Le Hoa Tan
- Agriculture and Agri-Food Canada, Ottawa Research and Development Centre, Ottawa, Ontario, Canada K1A 0C6
- Department of Biology and Institute of Biochemistry, and Ottawa Institute of Systems Biology, Carleton University, Ottawa, Ontario, Canada K1S 5B6
| | - Daniel Burnside
- Department of Biology and Institute of Biochemistry, and Ottawa Institute of Systems Biology, Carleton University, Ottawa, Ontario, Canada K1S 5B6
| | - Sadhna Phanse
- Department of Biochemistry, University of Regina, Regina, Saskatchewan, Canada S4S 0A2
| | - Hiroyuki Aoki
- Department of Biochemistry, University of Regina, Regina, Saskatchewan, Canada S4S 0A2
| | - Mohan Babu
- Department of Biochemistry, University of Regina, Regina, Saskatchewan, Canada S4S 0A2
| | - Frank Dehne
- School of Computer Science, Carleton University, Ottawa, Ontario, Canada K1S 5B6
| | - Ashkan Golshani
- Department of Biology and Institute of Biochemistry, and Ottawa Institute of Systems Biology, Carleton University, Ottawa, Ontario, Canada K1S 5B6
| | - Elroy R Cober
- Agriculture and Agri-Food Canada, Ottawa Research and Development Centre, Ottawa, Ontario, Canada K1A 0C6
| | - James R Green
- Department of Systems and Computer Engineering, Carleton University, Ottawa, Ontario, Canada K1S 5B6
| | - Bahram Samanfar
- Agriculture and Agri-Food Canada, Ottawa Research and Development Centre, Ottawa, Ontario, Canada K1A 0C6
- Department of Biology and Institute of Biochemistry, and Ottawa Institute of Systems Biology, Carleton University, Ottawa, Ontario, Canada K1S 5B6
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16
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Effects of aerobic exercise on hippocampal SUMOylation in APP/PS1 transgenic mice. Neurosci Lett 2021; 767:136303. [PMID: 34695453 DOI: 10.1016/j.neulet.2021.136303] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Revised: 10/17/2021] [Accepted: 10/18/2021] [Indexed: 11/22/2022]
Abstract
Alzheimer's disease (AD) is the most common neurodegenerative disease. SUMOylation, a post-translational modification, has been found to be dysregulated in the AD brain and to exacerbate learning and memory disabilities and increase amyloid beta (Aβ) expression further. To investigate whether exercise-induced alleviation of AD was associated with SUMOylation, which still remains unknown, 3-month-old C57BL/6 mice and APP/PS1 transgenic mice were randomly divided into the wild-type control (WC), wild-type exercise (WE), APP/PS1 control (AC), and APP/PS1 exercise (AE) groups. Mice in the exercise groups underwent a 3-month treadmill exercise regimen. We observed impaired learning and memory abilities in APP/PS1 mice, but the 3-month treadmill exercise regimen improved spatial learning and memory abilities in wild-type and APP/PS1 mice. In addition, senile plaques, SUMO1 mRNA, and SENP1 mRNA levels increased in the hippocampi of APP/PS1 mice. However, 3-month treadmill exercise decreased the levels of senile plaques, SUMO1 mRNA and SENP1 mRNA as well as may reduce SUMO1 modification in 6-month-old APP/PS1 mice, but SUMO2 mRNA expression, SUMO2/3 modification, and overall SUMOylation levels did not significantly change. Our results suggest that the impaired learning and memory abilities and aggregations of Aβ may relate to increased hippocampal SUMO1 transcription levels; the beneficial effects of treadmill exercise on learning and memory performances and AD pathogenesis may associated with the abatement of SUMO1 modification, but may not with SUMO2/3 modification.
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17
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Girotra P, Behl T, Sehgal A, Singh S, Bungau S. Investigation of the Molecular Role of Brain-Derived Neurotrophic Factor in Alzheimer's Disease. J Mol Neurosci 2021; 72:173-186. [PMID: 34424488 DOI: 10.1007/s12031-021-01824-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Accepted: 03/01/2021] [Indexed: 12/13/2022]
Abstract
Brain-derived neurotrophic factor (BDNF), or abrineurin, is a member of the neurotrophin family of growth factors that acts on both the central and peripheral nervous systems. BDNF is also well known for its cardinal role in normal neural maturation. It binds to at least two receptors at the cell surface known as tyrosine kinase B (TrkB) and p75NTR. Additional neurotrophins that are anatomically linked with BDNF include neurotrophin-3 (NT-3), neurotrophin-4 (NT-4), and nerve growth factor (NGF). It is evident that BDNF levels in patients with Alzheimer's disease (AD) are altered. AD is a progressive disorder and a form of dementia, where the mental function of an elderly person is disrupted. It is associated with a progressive decline in cognitive function, which mainly targets the thinking, memory, and behavior of the person. The degeneration of neurons occurs in the cerebral cortex region of brain. The two major sources responsible for neuronal degeneration are protein fragment amyloid-beta (Aβ), which builds up in the spaces between the nerve cells, known as plaques, disrupting the neuron signaling pathway and leading to dementia, and neurofibrillary tangles (NFTs), which are the twisted fibers of proteins that build up inside the cells. AD is highly prevalent, with recent data indicating nearly 5.8 million Americans aged 65 and older with AD in 2020, and with 80% of patients 75 and older. AD is recognized as the sixth leading cause of death in the USA, and its prevalence is predicted to increase exponentially in the coming years. As AD worsens over time, it becomes increasingly important to understand the exact pathophysiology, biomarkers, and treatment. In this article, we focus primarily on the controversial aspect of BDNF in AD, including its influence on various other proteins and enzymes and the current treatments associated with BDNF, along with future perspectives.
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Affiliation(s)
- Pragya Girotra
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
| | - Tapan Behl
- Chitkara College of Pharmacy, Chitkara University, Punjab, India.
| | - Aayush Sehgal
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
| | - Sukhbir Singh
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
| | - Simona Bungau
- Department of Pharmacy, Faculty of Medicine and Pharmacy, University of Oradea, Oradea, Romania
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18
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Chen X, Zhang Y, Wang Q, Qin Y, Yang X, Xing Z, Shen Y, Wu H, Qi Y. The function of SUMOylation and its crucial roles in the development of neurological diseases. FASEB J 2021; 35:e21510. [PMID: 33710677 DOI: 10.1096/fj.202002702r] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2020] [Revised: 02/02/2021] [Accepted: 02/22/2021] [Indexed: 11/11/2022]
Abstract
Neurological diseases are relatively complex diseases of a large system; however, the detailed mechanism of their pathogenesis has not been completely elucidated, and effective treatment methods are still lacking for some of the diseases. The SUMO (small ubiquitin-like modifier) modification is a dynamic and reversible process that is catalyzed by SUMO-specific E1, E2, and E3 ligases and reversed by a family of SENPs (SUMO/Sentrin-specific proteases). SUMOylation covalently conjugates numerous cellular proteins, and affects their cellular localization and biological activity in numerous cellular processes. A wide range of neuronal proteins have been identified as SUMO substrates, and the disruption of SUMOylation results in defects in synaptic plasticity, neuronal excitability, and neuronal stress responses. SUMOylation disorders cause many neurodegenerative diseases, such as Parkinson's disease, Alzheimer's disease, and Huntington's disease. By modulating the ion channel subunit, SUMOylation imbalance is responsible for the development of various channelopathies. The regulation of protein SUMOylation in neurons may provide a new strategy for the development of targeted therapeutic drugs for neurodegenerative diseases and channelopathies.
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Affiliation(s)
- Xu Chen
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi'an, China
| | - Yuhong Zhang
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi'an, China
| | - Qiqi Wang
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi'an, China
| | - Yuanyuan Qin
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi'an, China
| | - Xinyi Yang
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi'an, China
| | - Zhengcao Xing
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi'an, China
| | - Yajie Shen
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi'an, China
| | - Hongmei Wu
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi'an, China
| | - Yitao Qi
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi'an, China
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19
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Nagy D, Ennis KA, Wei R, Su SC, Hinckley CA, Gu RF, Gao B, Massol RH, Ehrenfels C, Jandreski L, Thomas AM, Nelson A, Gyoneva S, Hajós M, Burkly LC. Developmental synaptic regulator, TWEAK/Fn14 signaling, is a determinant of synaptic function in models of stroke and neurodegeneration. Proc Natl Acad Sci U S A 2021; 118:e2001679118. [PMID: 33526652 PMCID: PMC8017933 DOI: 10.1073/pnas.2001679118] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Identifying molecular mediators of neural circuit development and/or function that contribute to circuit dysfunction when aberrantly reengaged in neurological disorders is of high importance. The role of the TWEAK/Fn14 pathway, which was recently reported to be a microglial/neuronal axis mediating synaptic refinement in experience-dependent visual development, has not been explored in synaptic function within the mature central nervous system. By combining electrophysiological and phosphoproteomic approaches, we show that TWEAK acutely dampens basal synaptic transmission and plasticity through neuronal Fn14 and impacts the phosphorylation state of pre- and postsynaptic proteins in adult mouse hippocampal slices. Importantly, this is relevant in two models featuring synaptic deficits. Blocking TWEAK/Fn14 signaling augments synaptic function in hippocampal slices from amyloid-beta-overexpressing mice. After stroke, genetic or pharmacological inhibition of TWEAK/Fn14 signaling augments basal synaptic transmission and normalizes plasticity. Our data support a glial/neuronal axis that critically modifies synaptic physiology and pathophysiology in different contexts in the mature brain and may be a therapeutic target for improving neurophysiological outcomes.
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Affiliation(s)
- Dávid Nagy
- Clinical Sciences, Biogen, Cambridge, MA 02142
- Biogen Postdoctoral Scientist Program, Cellular Physiology, Biogen, Cambridge, MA 02142
| | - Katelin A Ennis
- Genetic and Neurodevelopmental Disease Research, Biogen, Cambridge, MA 02142
| | - Ru Wei
- Chemical Biology and Proteomics, Biogen, Cambridge, MA 02142
| | - Susan C Su
- Genetic and Neurodevelopmental Disease Research, Biogen, Cambridge, MA 02142
| | | | - Rong-Fang Gu
- Chemical Biology and Proteomics, Biogen, Cambridge, MA 02142
| | - Benbo Gao
- Chemical Biology and Proteomics, Biogen, Cambridge, MA 02142
| | - Ramiro H Massol
- Translational Cellular Sciences, Biogen, Cambridge, MA 02142
| | - Chris Ehrenfels
- Translational Cellular Sciences, Biogen, Cambridge, MA 02142
| | | | - Ankur M Thomas
- Genetic and Neurodevelopmental Disease Research, Biogen, Cambridge, MA 02142
| | - Ashley Nelson
- Genetic and Neurodevelopmental Disease Research, Biogen, Cambridge, MA 02142
| | - Stefka Gyoneva
- Genetic and Neurodevelopmental Disease Research, Biogen, Cambridge, MA 02142
| | - Mihály Hajós
- Clinical Sciences, Biogen, Cambridge, MA 02142
- Comparative Medicine, School of Medicine, Yale University, New Haven, CT 06520
| | - Linda C Burkly
- Genetic and Neurodevelopmental Disease Research, Biogen, Cambridge, MA 02142;
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20
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Henley JM, Seager R, Nakamura Y, Talandyte K, Nair J, Wilkinson KA. SUMOylation of synaptic and synapse-associated proteins: An update. J Neurochem 2021; 156:145-161. [PMID: 32538470 PMCID: PMC8218484 DOI: 10.1111/jnc.15103] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 04/23/2020] [Accepted: 04/24/2020] [Indexed: 12/13/2022]
Abstract
SUMOylation is a post-translational modification that regulates protein signalling and complex formation by adjusting the conformation or protein-protein interactions of the substrate protein. There is a compelling and rapidly expanding body of evidence that, in addition to SUMOylation of nuclear proteins, SUMOylation of extranuclear proteins contributes to the control of neuronal development, neuronal stress responses and synaptic transmission and plasticity. In this brief review we provide an update of recent developments in the identification of synaptic and synapse-associated SUMO target proteins and discuss the cell biological and functional implications of these discoveries.
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Affiliation(s)
- Jeremy M. Henley
- School of BiochemistryCentre for Synaptic PlasticityUniversity of BristolUniversity WalkBristolUK
| | - Richard Seager
- School of BiochemistryCentre for Synaptic PlasticityUniversity of BristolUniversity WalkBristolUK
| | - Yasuko Nakamura
- School of BiochemistryCentre for Synaptic PlasticityUniversity of BristolUniversity WalkBristolUK
| | - Karolina Talandyte
- School of BiochemistryCentre for Synaptic PlasticityUniversity of BristolUniversity WalkBristolUK
| | - Jithin Nair
- School of BiochemistryCentre for Synaptic PlasticityUniversity of BristolUniversity WalkBristolUK
| | - Kevin A. Wilkinson
- School of BiochemistryCentre for Synaptic PlasticityUniversity of BristolUniversity WalkBristolUK
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21
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Emerging Roles of PRDM Factors in Stem Cells and Neuronal System: Cofactor Dependent Regulation of PRDM3/16 and FOG1/2 (Novel PRDM Factors). Cells 2020; 9:cells9122603. [PMID: 33291744 PMCID: PMC7761934 DOI: 10.3390/cells9122603] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 11/13/2020] [Accepted: 11/25/2020] [Indexed: 12/19/2022] Open
Abstract
PRDI-BF1 (positive regulatory domain I-binding factor 1) and RIZ1 (retinoblastoma protein-interacting zinc finger gene 1) (PR) homologous domain containing (PRDM) transcription factors are expressed in neuronal and stem cell systems, and they exert multiple functions in a spatiotemporal manner. Therefore, it is believed that PRDM factors cooperate with a number of protein partners to regulate a critical set of genes required for maintenance of stem cell self-renewal and differentiation through genetic and epigenetic mechanisms. In this review, we summarize recent findings about the expression of PRDM factors and function in stem cell and neuronal systems with a focus on cofactor-dependent regulation of PRDM3/16 and FOG1/2. We put special attention on summarizing the effects of the PRDM proteins interaction with chromatin modulators (NuRD complex and CtBPs) on the stem cell characteristic and neuronal differentiation. Although PRDM factors are known to possess intrinsic enzyme activity, our literature analysis suggests that cofactor-dependent regulation of PRDM3/16 and FOG1/2 is also one of the important mechanisms to orchestrate bidirectional target gene regulation. Therefore, determining stem cell and neuronal-specific cofactors will help better understanding of PRDM3/16 and FOG1/2-controlled stem cell maintenance and neuronal differentiation. Finally, we discuss the clinical aspect of these PRDM factors in different diseases including cancer. Overall, this review will help further sharpen our knowledge of the function of the PRDM3/16 and FOG1/2 with hopes to open new research fields related to these factors in stem cell biology and neuroscience.
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22
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Rajendran K, Chellappan DR, Sankaranarayanan S, Ramakrishnan V, Krishnan UM. Investigations on a polyherbal formulation for treatment of cognitive impairment in a cholinergic dysfunctional rodent model. Neurochem Int 2020; 141:104890. [DOI: 10.1016/j.neuint.2020.104890] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Revised: 10/21/2020] [Accepted: 10/22/2020] [Indexed: 02/07/2023]
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23
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Yu S, Galeffi F, Rodriguiz RM, Wang Z, Shen Y, Lyu J, Li R, Bernstock JD, Johnson KR, Liu S, Sheng H, Turner DA, Wetsel WC, Paschen W, Yang W. Small ubiquitin-like modifier 2 (SUMO2) is critical for memory processes in mice. FASEB J 2020; 34:14750-14767. [PMID: 32910521 DOI: 10.1096/fj.202000850rr] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 08/20/2020] [Accepted: 08/22/2020] [Indexed: 12/15/2022]
Abstract
Small ubiquitin-like modifier (SUMO1-3) conjugation (SUMOylation), a posttranslational modification, modulates almost all major cellular processes. Mounting evidence indicates that SUMOylation plays a crucial role in maintaining and regulating neural function, and importantly its dysfunction is implicated in cognitive impairment in humans. We have previously shown that simultaneously silencing SUMO1-3 expression in neurons negatively affects cognitive function. However, the roles of the individual SUMOs in modulating cognition and the mechanisms that link SUMOylation to cognitive processes remain unknown. To address these questions, in this study, we have focused on SUMO2 and generated a new conditional Sumo2 knockout mouse line. We found that conditional deletion of Sumo2 predominantly in forebrain neurons resulted in marked impairments in various cognitive tests, including episodic and fear memory. Our data further suggest that these abnormalities are attributable neither to constitutive changes in gene expression nor to alterations in neuronal morphology, but they involve impairment in dynamic SUMOylation processes associated with synaptic plasticity. Finally, we provide evidence that dysfunction on hippocampal-based cognitive tasks was associated with a significant deficit in the maintenance of hippocampal long-term potentiation in Sumo2 knockout mice. Collectively, these data demonstrate that protein conjugation by SUMO2 is critically involved in cognitive processes.
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Affiliation(s)
- Shu Yu
- Department of Anesthesiology, Duke University Medical Center, Durham, NC, USA.,Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, China
| | - Francesca Galeffi
- Research and Surgery Services, Durham VAMC, Durham, NC, USA.,Department of Neurosurgery, Duke University Medical Center, Durham, NC, USA.,Department of Neurobiology, Duke University Medical Center, Durham, NC, USA.,Department of Biomedical Engineering, Duke University Medical Center, Durham, NC, USA
| | - Ramona M Rodriguiz
- Department of Psychiatry and Behavioral Sciences, Mouse Behavioral and Neuroendocrine Analysis Core Facility, Duke University Medical Center, Durham, NC, USA
| | - Zhuoran Wang
- Department of Anesthesiology, Duke University Medical Center, Durham, NC, USA
| | - Yuntian Shen
- Department of Anesthesiology, Duke University Medical Center, Durham, NC, USA.,Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, China
| | - Jingjun Lyu
- Department of Anesthesiology, Duke University Medical Center, Durham, NC, USA
| | - Ran Li
- Department of Anesthesiology, Duke University Medical Center, Durham, NC, USA
| | - Joshua D Bernstock
- Stroke Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health (NINDS/NIH), Bethesda, MD, USA
| | - Kory R Johnson
- Bioinformatics Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health (NINDS/NIH), Bethesda, MD, USA
| | - Shuai Liu
- Department of Anesthesiology, Duke University Medical Center, Durham, NC, USA
| | - Huaxin Sheng
- Department of Anesthesiology, Duke University Medical Center, Durham, NC, USA
| | - Dennis A Turner
- Research and Surgery Services, Durham VAMC, Durham, NC, USA.,Department of Neurosurgery, Duke University Medical Center, Durham, NC, USA.,Department of Neurobiology, Duke University Medical Center, Durham, NC, USA.,Department of Biomedical Engineering, Duke University Medical Center, Durham, NC, USA
| | - William C Wetsel
- Department of Neurobiology, Duke University Medical Center, Durham, NC, USA.,Department of Psychiatry and Behavioral Sciences, Mouse Behavioral and Neuroendocrine Analysis Core Facility, Duke University Medical Center, Durham, NC, USA.,Department of Cell Biology, Duke University Medical Center, Durham, NC, USA
| | - Wulf Paschen
- Department of Anesthesiology, Duke University Medical Center, Durham, NC, USA
| | - Wei Yang
- Department of Anesthesiology, Duke University Medical Center, Durham, NC, USA
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24
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Guanosine modulates SUMO2/3-ylation in neurons and astrocytes via adenosine receptors. Purinergic Signal 2020; 16:439-450. [PMID: 32892251 PMCID: PMC7524998 DOI: 10.1007/s11302-020-09723-0] [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: 05/12/2020] [Accepted: 08/17/2020] [Indexed: 12/13/2022] Open
Abstract
SUMOylation is a post-translational modification (PTM) whereby members of the Small Ubiquitin-like MOdifier (SUMO) family of proteins are conjugated to lysine residues in target proteins. SUMOylation has been implicated in a wide range of physiological and pathological processes, and much attention has been given to its role in neurodegenerative conditions. Due to its reported role in neuroprotection, pharmacological modulation of SUMOylation represents an attractive potential therapeutic strategy in a number of different brain disorders. However, very few compounds that target the SUMOylation pathway have been identified. Guanosine is an endogenous nucleoside with important neuromodulatory and neuroprotective effects. Experimental evidence has shown that guanosine can modulate different intracellular pathways, including PTMs. In the present study we examined whether guanosine alters global protein SUMOylation. Primary cortical neurons and astrocytes were treated with guanosine at 1, 10, 100, 300, or 500 μM at four time points, 1, 6, 24, or 48 h. We show that guanosine increases global SUMO2/3-ylation in neurons and astrocytes at 1 h at concentrations above 10 μM. The molecular mechanisms involved in this effect were evaluated in neurons. The guanosine-induced increase in global SUMO2/3-ylation was still observed in the presence of dipyridamole, which prevents guanosine internalization, demonstrating an extracellular guanosine-induced effect. Furthermore, the A1 adenosine receptor antagonist DPCPX abolished the guanosine-induced increase in SUMO2/3-ylation. The A2A adenosine receptor antagonist ZM241385 increased SUMOylation per se, but did not alter guanosine-induced SUMOylation, suggesting that guanosine may modulate SUMO2/3-ylation through an A1-A2A receptor interaction. Taken together, this is the first report to show guanosine as a SUMO2/3-ylation enhancer in astrocytes and neurons.
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Volicer L. Physiological and pathological functions of beta-amyloid in the brain and alzheimer's disease: A review. CHINESE J PHYSIOL 2020; 63:95-100. [PMID: 32594062 DOI: 10.4103/cjp.cjp_10_20] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Alzheimer's disease is a major health problem all over the world. The role of beta-amyloid (Aβ) is at the center of investigations trying to discover the disease pathogenesis and to develop drugs for treatment or prevention on Alzheimer's disease. This review summarizes both physiological and pathological functions of Aβ and factors that may participate in the disease development. Known genetic factors are trisomy of chromosome 21, mutations of presenilin 1 and 2, and apolipoprotein E4. Lifetime stresses that increase the risk of development of Alzheimer's disease are described. Another important factor is the level of education, especially of linguistic ability. Lifestyle factors include mental and physical exercise, head injury, social contacts, and diet. All these factors might potentiate the effect of aging on the brain to increase the risk of development of pathological changes. The review summarizes pathological features of Alzheimer brain, Aβ plaques, neurofibrillary tangles composed of hyperphosphorylated tau, and brain atrophy. Consequences of Alzheimer's disease that are reviewed include cognitive deficit, loss of function, and neuropsychiatric symptoms. Because there is no effective treatment, many persons with Alzheimer's disease survive to severe and terminal stages which they may fear. Alzheimer's disease at this stage should be considered a terminal disease for which palliative care is indicated. Importance of advance directives, promoting previous wishes of the person who was developing dementia and who subsequently lost decision-making capacity, and limitations of these directives are discussed. Information in this review is based on author's knowledge and clinical experience that were updated by searches of PubMed.
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Affiliation(s)
- Ladislav Volicer
- School of Aging Studies, University of South Florida, Tampa, FL, USA; 3rd Medical Faculty, Charles University, Prague, Czech Republic, Europe
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26
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Folci A, Mirabella F, Fossati M. Ubiquitin and Ubiquitin-Like Proteins in the Critical Equilibrium between Synapse Physiology and Intellectual Disability. eNeuro 2020; 7:ENEURO.0137-20.2020. [PMID: 32719102 PMCID: PMC7544190 DOI: 10.1523/eneuro.0137-20.2020] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 06/08/2020] [Accepted: 06/17/2020] [Indexed: 01/04/2023] Open
Abstract
Posttranslational modifications (PTMs) represent a dynamic regulatory system that precisely modulates the functional organization of synapses. PTMs consist in target modifications by small chemical moieties or conjugation of lipids, sugars or polypeptides. Among them, ubiquitin and a large family of ubiquitin-like proteins (UBLs) share several features such as the structure of the small protein modifiers, the enzymatic cascades mediating the conjugation process, and the targeted aminoacidic residue. In the brain, ubiquitination and two UBLs, namely sumoylation and the recently discovered neddylation orchestrate fundamental processes including synapse formation, maturation and plasticity, and their alteration is thought to contribute to the development of neurological disorders. Remarkably, emerging evidence suggests that these pathways tightly interplay to modulate the function of several proteins that possess pivotal roles for brain homeostasis as well as failure of this crosstalk seems to be implicated in the development of brain pathologies. In this review, we outline the role of ubiquitination, sumoylation, neddylation, and their functional interplay in synapse physiology and discuss their implication in the molecular pathogenesis of intellectual disability (ID), a neurodevelopmental disorder that is frequently comorbid with a wide spectrum of brain pathologies. Finally, we propose a few outlooks that might contribute to better understand the complexity of these regulatory systems in regard to neuronal circuit pathophysiology.
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Affiliation(s)
- Alessandra Folci
- Humanitas Clinical and Research Center-IRCCS, via Manzoni 56, 20089, Rozzano (MI), Italy
| | - Filippo Mirabella
- Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, 20090 Pieve 9 Emanuele - Milan, Italy
| | - Matteo Fossati
- Humanitas Clinical and Research Center-IRCCS, via Manzoni 56, 20089, Rozzano (MI), Italy
- CNR-Institute of Neuroscience, via Manzoni 56, 20089, Rozzano (MI), Italy
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27
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Huang D, Liu H, Zhu A, Zhou Y, Li Y. Forebrain excitatory neuron-specific SENP2 knockout mouse displays hyperactivity, impaired learning and memory, and anxiolytic-like behavior. Mol Brain 2020; 13:59. [PMID: 32290845 PMCID: PMC7155287 DOI: 10.1186/s13041-020-00591-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Accepted: 03/18/2020] [Indexed: 12/21/2022] Open
Abstract
Sentrin/SUMO-specific protease 2 (SENP2) is a member of SENPs family involved in maturation of SUMO precursors and deSUMOylation of specific target, and is highly expressed in the central nervous system (CNS). Although SENP2 has been shown to modulate embryonic development, fatty acid metabolism, atherosclerosis and epilepsy, the function of SENP2 in the CNS remains poorly understood. To address the role of SENP2 in the CNS and its potential involvement in neuropathology, we generated SENP2 conditional knockout mice by crossing floxed SENP2 mice with CaMKIIα-Cre transgenic mice. Behavioral tests revealed that SENP2 ablation induced hyper-locomotor activity, anxiolytic-like behaviors, spatial working memory impairment and fear-associated learning defect. In line with these observations, our RNA sequencing (RNA-seq) data identified a variety of differential expression genes that are particularly enriched in locomotion, learning and memory related biologic process. Taken together, our results indicated that SENP2 plays a critical role in emotional and cognitive regulation. This SENP2 conditional knockout mice model may help reveal novel mechanisms that underlie a variety of neuropsychiatric disorders associated with anxiety and cognition.
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Affiliation(s)
- Dehua Huang
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory for Tumor Microenvironment and Inflammation, Shanghai Jiao Tong University School of Medicine, 280 South Chongqing Road, Shanghai, 200025, China
| | - Huiqing Liu
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory for Tumor Microenvironment and Inflammation, Shanghai Jiao Tong University School of Medicine, 280 South Chongqing Road, Shanghai, 200025, China
| | - Aoxue Zhu
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory for Tumor Microenvironment and Inflammation, Shanghai Jiao Tong University School of Medicine, 280 South Chongqing Road, Shanghai, 200025, China
| | - Yi Zhou
- Department of Biomedical Sciences, College of Medicine, Florida State University, Tallahassee, FL, USA
| | - Yong Li
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory for Tumor Microenvironment and Inflammation, Shanghai Jiao Tong University School of Medicine, 280 South Chongqing Road, Shanghai, 200025, China.
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Ramesh M, Gopinath P, Govindaraju T. Role of Post-translational Modifications in Alzheimer's Disease. Chembiochem 2020; 21:1052-1079. [PMID: 31863723 DOI: 10.1002/cbic.201900573] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Revised: 12/19/2019] [Indexed: 12/22/2022]
Abstract
The global burden of Alzheimer's disease (AD) is growing. Valiant efforts to develop clinical candidates for treatment have continuously met with failure. Currently available palliative treatments are temporary and there is a constant need to search for reliable disease pathways, biomarkers and drug targets for developing diagnostic and therapeutic tools to address the unmet medical needs of AD. Challenges in drug-discovery efforts raise further questions about the strategies of current conventional diagnosis; drug design; and understanding of disease pathways, biomarkers and targets. In this context, post-translational modifications (PTMs) regulate protein trafficking, function and degradation, and their in-depth study plays a significant role in the identification of novel biomarkers and drug targets. Aberrant PTMs of disease-relevant proteins could trigger pathological pathways, leading to disease progression. Advancements in proteomics enable the generation of patterns or signatures of such modifications, and thus, provide a versatile platform to develop biomarkers based on PTMs. In addition, understanding and targeting the aberrant PTMs of various proteins provide viable avenues for addressing AD drug-discovery challenges. This review highlights numerous PTMs of proteins relevant to AD and provides an overview of their adverse effects on the protein structure, function and aggregation propensity that contribute to the disease pathology. A critical discussion offers suggestions of methods to develop PTM signatures and interfere with aberrant PTMs to develop viable diagnostic and therapeutic interventions in AD.
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Affiliation(s)
- Madhu Ramesh
- Bioorganic Chemistry Laboratory, New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur P.O., Bengaluru, 560064, Karnataka, India
| | - Pushparathinam Gopinath
- Department of Chemistry, SRM-Institute of Science and Technology, Kattankulathur, 603203, Chennai, Tamilnadu, India
| | - Thimmaiah Govindaraju
- Bioorganic Chemistry Laboratory, New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur P.O., Bengaluru, 560064, Karnataka, India
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Du CP, Wang M, Geng C, Hu B, Meng L, Xu Y, Cheng B, Wang N, Zhu QJ, Hou XY. Activity-Induced SUMOylation of Neuronal Nitric Oxide Synthase Is Associated with Plasticity of Synaptic Transmission and Extracellular Signal-Regulated Kinase 1/2 Signaling. Antioxid Redox Signal 2020; 32:18-34. [PMID: 31642335 DOI: 10.1089/ars.2018.7669] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Aims: Neuronal nitric oxide synthase (nNOS) and nitric oxide (NO) signaling have been implicated in learning, memory, and underlying long-lasting synaptic plasticity. In this study, we aimed at detecting whether nNOS is a target protein of SUMOylation in the hippocampus and its contributions to hippocampal long-term potentiation (LTP) of synaptic transmission. Results: We showed that N-methyl-d-aspartate receptor-dependent neuronal activity enhancement induced the attachment of small ubiquitin-like modifier 1 (SUMO1) to nNOS. Protein inhibitor of activated STAT3 (PIAS3) promoted SUMO1 conjugation at K725 and K739 on nNOS, which upregulated NO production and nNOS S1412 phosphorylation (activation). In addition, the N-terminus (amino acids 43-86) of PIAS3 bound nNOS directly. Tat-tagged PIAS3 segment representing amino acids 43-86, a cell-permeable peptide containing PIAS3 residues 43-86, suppressed activity-induced nNOS SUMOylation by disrupting PIAS3-nNOS association. It also decreased LTP-related expression of Arc and brain-derived neurotrophic factor and blocked signaling via extracellular signal-regulated kinase (ERK) 1/2 and Elk-1 in the hippocampus. More importantly, PIAS3-mediated nNOS SUMOylation was required for activity-regulated ERK1/2 activation in nNOS-positive neurons and hippocampal LTP induction. Innovation and Conclusion: These findings indicated that network activity-regulated nNOS SUMOylation underlies excitatory synaptic LTP by facilitating nNOS-NO-ERK1/2 signal cascades.
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Affiliation(s)
- Cai-Ping Du
- Research Center for Biochemistry and Molecular Biology, Jiangsu Key Laboratory of Brain Disease Bioinformation, Xuzhou Medical University, Xuzhou, China.,State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, Nanjing, China
| | - Mei Wang
- Research Center for Biochemistry and Molecular Biology, Jiangsu Key Laboratory of Brain Disease Bioinformation, Xuzhou Medical University, Xuzhou, China
| | - Chi Geng
- Research Center for Biochemistry and Molecular Biology, Jiangsu Key Laboratory of Brain Disease Bioinformation, Xuzhou Medical University, Xuzhou, China.,State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, Nanjing, China
| | - Bin Hu
- Research Center for Biochemistry and Molecular Biology, Jiangsu Key Laboratory of Brain Disease Bioinformation, Xuzhou Medical University, Xuzhou, China
| | - Li Meng
- Research Center for Biochemistry and Molecular Biology, Jiangsu Key Laboratory of Brain Disease Bioinformation, Xuzhou Medical University, Xuzhou, China
| | - Yan Xu
- Research Center for Biochemistry and Molecular Biology, Jiangsu Key Laboratory of Brain Disease Bioinformation, Xuzhou Medical University, Xuzhou, China
| | - Bao Cheng
- Research Center for Biochemistry and Molecular Biology, Jiangsu Key Laboratory of Brain Disease Bioinformation, Xuzhou Medical University, Xuzhou, China
| | - Nan Wang
- Research Center for Biochemistry and Molecular Biology, Jiangsu Key Laboratory of Brain Disease Bioinformation, Xuzhou Medical University, Xuzhou, China
| | - Qiu-Ju Zhu
- Research Center for Biochemistry and Molecular Biology, Jiangsu Key Laboratory of Brain Disease Bioinformation, Xuzhou Medical University, Xuzhou, China
| | - Xiao-Yu Hou
- Research Center for Biochemistry and Molecular Biology, Jiangsu Key Laboratory of Brain Disease Bioinformation, Xuzhou Medical University, Xuzhou, China.,State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, Nanjing, China
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Colnaghi L, Russo L, Natale C, Restelli E, Cagnotto A, Salmona M, Chiesa R, Fioriti L. Super Resolution Microscopy of SUMO Proteins in Neurons. Front Cell Neurosci 2019; 13:486. [PMID: 31749687 PMCID: PMC6844275 DOI: 10.3389/fncel.2019.00486] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Accepted: 10/14/2019] [Indexed: 12/18/2022] Open
Abstract
The ubiquitously expressed SUMO proteins regulate a plethora of cellular pathways and processes. While they have a predominantly nuclear localization, extranuclear roles of SUMO isoforms at the synapse have also been described, making SUMOylation one of the major post-translational regulators of nerve functions. These findings have however recently been challenged, at least for SUMO1, by the analysis of knock-in mice expressing His6-HA-SUMO1, where the authors failed to detect the protein at the synapse. In the ongoing dispute, the subcellular distribution in neurons of SUMO2/3 and of the E2 SUMO ligase Ubc9 has not been examined. To investigate whether SUMO proteins do or do not localize at the synapse, we studied their localization in hippocampal primary neurons by super resolution microscopy. We found that SUMO1, SUMO2/3, and Ubc9 are primarily nuclear proteins, which also colocalize partially with pre- and post-synaptic markers such as synaptophysin and PSD95.
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Affiliation(s)
- Luca Colnaghi
- Department of Neuroscience, Dulbecco Telethon Institute, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan, Italy
| | - Luca Russo
- Department of Molecular Biochemistry and Pharmacology, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan, Italy
| | - Carmina Natale
- Department of Neuroscience, Dulbecco Telethon Institute, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan, Italy
| | - Elena Restelli
- Department of Neuroscience, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan, Italy
| | - Alfredo Cagnotto
- Department of Molecular Biochemistry and Pharmacology, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan, Italy
| | - Mario Salmona
- Department of Molecular Biochemistry and Pharmacology, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan, Italy
| | - Roberto Chiesa
- Department of Neuroscience, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan, Italy
| | - Luana Fioriti
- Department of Neuroscience, Dulbecco Telethon Institute, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan, Italy
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31
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Kelschenbach J, He H, Kim BH, Borjabad A, Gu CJ, Chao W, Do M, Sharer LR, Zhang H, Arancio O, Potash MJ, Volsky DJ. Efficient Expression of HIV in Immunocompetent Mouse Brain Reveals a Novel Nonneurotoxic Viral Function in Hippocampal Synaptodendritic Injury and Memory Impairment. mBio 2019; 10:e00591-19. [PMID: 31266862 PMCID: PMC6606797 DOI: 10.1128/mbio.00591-19] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Accepted: 05/29/2019] [Indexed: 01/05/2023] Open
Abstract
HIV causes neurodegeneration and dementia in AIDS patients, but its function in milder cognitive impairments in virologically suppressed patients on antiretroviral therapy is unknown. Such patients are immunocompetent, have low peripheral and brain HIV burdens, and show minimal brain neuropathology. Using the model of HIV-related memory impairment in EcoHIV-infected conventional mice, we investigated the neurobiological and cognitive consequences of efficient EcoHIV expression in the mouse brain after intracerebral infection. HIV integrated and persisted in an expressed state in brain tissue, was detectable in brain monocytic cells, and caused neuroinflammatory responses and lasting spatial, working, and associative memory impairment. Systemic antiretroviral treatment prevented direct brain infection and memory dysfunction indicating the requirement for HIV expression in the brain for disease. Similarly inoculated murine leukemia virus used as a control replicated in mouse brain but not in monocytic cells and was cognitively benign, linking the disease to HIV-specific functions. Memory impairment correlated in real time with hippocampal dysfunction shown by defective long-term potentiation in hippocampal slices ex vivo and with diffuse synaptodendritic injury in the hippocampus reflected in significant reduction in microtubule-associated protein 2 and synapsin II staining. In contrast, there was no evidence of overt neuronal loss in this region as determined by neuron-specific nuclear protein quantification, TUNEL assay, and histological observations. Our results reveal a novel capacity of HIV to induce neuronal dysfunction and memory impairment independent of neurotoxicity, distinct from the neurotoxicity of HIV infection in dementia.IMPORTANCE HIV neuropathogenesis has been attributed in large measure to neurotoxicity of viral proteins and inflammatory factors produced by infected monocytic cells in the brain. We show here that HIV expression in mouse brain causes lasting memory impairment by a mechanism involving injury to hippocampal synaptodendritic arbors and neuronal function but not overt neuronal loss in the region. Our results mirror the observation of minimal neurodegeneration in cognitively impaired HIV patients on antiretroviral therapy and demonstrate that HIV is nonneurotoxic in certain brain abnormalities that it causes. If neurons comprising the cognition-related networks survive HIV insult, at least for some time, there is a window of opportunity for disease treatment.
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Affiliation(s)
- Jennifer Kelschenbach
- Department of Medicine, Infectious Diseases Division, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Hongxia He
- Department of Medicine, Infectious Diseases Division, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Boe-Hyun Kim
- Department of Medicine, Infectious Diseases Division, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Alejandra Borjabad
- Department of Medicine, Infectious Diseases Division, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Chao-Jiang Gu
- Department of Medicine, Infectious Diseases Division, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Wei Chao
- Department of Medicine, Infectious Diseases Division, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Meilan Do
- Department of Pathology and Laboratory Medicine, Rutgers New Jersey Medical School, Newark, New Jersey, USA
| | - Leroy R Sharer
- Department of Pathology and Laboratory Medicine, Rutgers New Jersey Medical School, Newark, New Jersey, USA
| | - Hong Zhang
- Department of Pathology and Cell Biology, Columbia University Medical Center, New York, New York, USA
| | - Ottavio Arancio
- Department of Pathology and Cell Biology, Columbia University Medical Center, New York, New York, USA
| | - Mary Jane Potash
- Department of Medicine, Infectious Diseases Division, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - David J Volsky
- Department of Medicine, Infectious Diseases Division, Icahn School of Medicine at Mount Sinai, New York, New York, USA
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Welch MA, Forster LA, Atlas SI, Baro DJ. SUMOylating Two Distinct Sites on the A-type Potassium Channel, Kv4.2, Increases Surface Expression and Decreases Current Amplitude. Front Mol Neurosci 2019; 12:144. [PMID: 31213982 PMCID: PMC6554448 DOI: 10.3389/fnmol.2019.00144] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Accepted: 05/17/2019] [Indexed: 12/15/2022] Open
Abstract
Post-translational conjugation of Small Ubiquitin-like Modifier (SUMO) peptides to lysine (K) residues on target proteins alters their interactions. SUMOylation of a target protein can either promote its interaction with other proteins that possess SUMO binding domains, or it can prevent target protein interactions that normally occur in the absence of SUMOylation. One subclass of voltage-gated potassium channels that mediates an A-type current, IA, exists as a ternary complex comprising Kv4 pore-forming subunits, Kv channel interacting proteins (KChIP) and transmembrane dipeptidyl peptidase like proteins (DPPL). SUMOylation could potentially regulate intra- and/or intermolecular interactions within the complex. This study began to test this hypothesis and showed that Kv4.2 channels were SUMOylated in the rat brain and in human embryonic kidney (HEK) cells expressing a GFP-tagged mouse Kv4.2 channel (Kv4.2g). Prediction software identified two putative SUMOylation sites in the Kv4.2 C-terminus at K437 and K579. These sites were conserved across mouse, rat, and human Kv4.2 channels and across mouse Kv4 isoforms. Increasing Kv4.2g SUMOylation at each site by ~30% produced a significant ~22%–50% decrease in IA Gmax, and a ~70%–95% increase in channel surface expression. Site-directed mutagenesis of Kv4.2g showed that K437 SUMOylation regulated channel surface expression, while K579 SUMOylation controlled IA Gmax. The K579R mutation mimicked and occluded the SUMOylation-mediated decrease in IA Gmax, suggesting that SUMOylation at K579 blocked an intra- or inter-protein interaction involving K579. The K437R mutation did not obviously alter channel surface expression or biophysical properties, but it did block the SUMOylation-mediated increase in channel surface expression. Interestingly, enhancing K437 SUMOylation in the K579R mutant roughly doubled channel surface expression, but produced no change in IA Gmax, suggesting that the newly inserted channels were electrically silent. This is the first report that Kv4.2 channels are SUMOylated and that SUMOylation can independently regulate Kv4.2 surface expression and IA Gmax in opposing directions. The next step will be to determine if/how SUMOylation affects Kv4 interactions within the ternary complex.
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Affiliation(s)
- Meghyn A Welch
- Department of Biology, Georgia State University, Atlanta, GA, United States
| | - Lori A Forster
- Neuroscience Institute, Georgia State University, Atlanta, GA, United States
| | - Selin I Atlas
- Department of Biology, Georgia State University, Atlanta, GA, United States
| | - Deborah J Baro
- Department of Biology, Georgia State University, Atlanta, GA, United States.,Neuroscience Institute, Georgia State University, Atlanta, GA, United States
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Conditional Deletion of CC2D1A Reduces Hippocampal Synaptic Plasticity and Impairs Cognitive Function through Rac1 Hyperactivation. J Neurosci 2019; 39:4959-4975. [PMID: 30992372 DOI: 10.1523/jneurosci.2395-18.2019] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Revised: 04/11/2019] [Accepted: 04/14/2019] [Indexed: 11/21/2022] Open
Abstract
Coiled-coil and C2 domain containing 1A (CC2D1A) is an evolutionarily conserved protein, originally identified as a nuclear factor-κB activator through a large-scale screen of human genes. Mutations in the human Cc2d1a gene result in autosomal recessive nonsyndromic intellectual disability. It remains unclear, however, how Cc2d1a mutation leads to alterations in brain function. Here, we have taken advantage of Cre/loxP recombinase-based strategy to conditionally delete Cc2d1a exclusively from excitatory neurons of male mouse forebrain to examine its role in hippocampal synaptic plasticity and cognitive function. We confirmed the expression of CC2D1A protein and mRNA in the mouse hippocampus. Double immunofluorescence staining showed that CC2D1A is expressed in both excitatory and inhibitory neurons of the adult hippocampus. Conditional deletion of Cc2d1a (cKO) from excitatory neurons leads to impaired performance in object location memory test and altered anxiety-like behavior. Consistently, cKO mice displayed a deficit in the maintenance of LTP in the CA1 region of hippocampal slices. Cc2d1a deletion also resulted in decreased complexity of apical and basal dendritic arbors of CA1 pyramidal neurons. An enhanced basal Rac1 activity was observed following Cc2d1a deletion, and this enhancement was mediated by reduced SUMO-specific protease 1 (SENP1) and SENP3 expression, thus increasing the amount of Rac1 SUMOylation. Furthermore, partial blockade of Rac1 activity rescued impairments in LTP and object location memory performance in cKO mice. Together, our results implicate Rac1 hyperactivity in synaptic plasticity and cognitive deficits observed in Cc2d1a cKO mice and reveal a novel role for CC2D1A in regulating hippocampal synaptic function.SIGNIFICANCE STATEMENT CC2D1A is abundantly expressed in the brain, but there is little known about its physiological function. Taking advantage of Cc2d1a cKO mice, the present study highlights the importance of CC2D1A in the maintenance of LTP at Schaffer collateral-CA1 synapses and the formation of hippocampus-dependent long-term object location memory. Our findings establish a critical link between elevated Rac1 activity, structural and synaptic plasticity alterations, and cognitive impairment caused by Cc2d1a deletion. Moreover, partial blockade of Rac1 activity rescues synaptic plasticity and memory deficits in Cc2d1a cKO mice. Such insights may have implications for the utility of Rac1 inhibitors in the treatment of intellectual disability caused by Cc2d1a mutations in human patients.
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Yu J, Kwon H, Cho E, Jeon J, Kang RH, Youn K, Jun M, Lee YC, Ryu JH, Kim DH. The effects of pinoresinol on cholinergic dysfunction-induced memory impairments and synaptic plasticity in mice. Food Chem Toxicol 2019; 125:376-382. [PMID: 30685474 DOI: 10.1016/j.fct.2019.01.017] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Revised: 01/02/2019] [Accepted: 01/17/2019] [Indexed: 12/28/2022]
Abstract
Dementia is a category of brain diseases that cause a decrease in cognitive functions. Alzheimer's disease (AD) is the most frequently mentioned neurodegenerative disease showing dementia. Although many useful drugs for dementia were developed, we still need better and safer drugs. Here, we tested pinoresinol, a lignan found in sesame seed and olive oil, whether it could be a candidate for this purpose. Pinoresinol (25 mg/kg, p.o.) ameliorated memory impairment in dementia model induced by cholinergic blockade in the passive avoidance test in a dose-dependent manner. Moreover, pinoresinol (50 μM) facilitated induction of hippocampal long-term potentiation, a cellular model of learning and memory. Pinoresinol blocked acetylcholinesterase (AchE), an acetylcholine-degrading enzyme, activity in a concentration-dependent manner. Moreover, pinoresinol (50 μM) facilitated calcium influx into neuro2a cell. These results suggest that pinoresinol improves memory impairment and facilitates hippocampal LTP induction and these results might be related to the effect of pinoresinol on AChE and calcium influx.
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Affiliation(s)
- Jimin Yu
- Department of Medicinal Biotechnology, College of Health Sciences, Dong-A University, Busan, 49315, Republic of Korea
| | - Huiyoung Kwon
- Department of Medicinal Biotechnology, College of Health Sciences, Dong-A University, Busan, 49315, Republic of Korea
| | - Eunbi Cho
- Department of Medicinal Biotechnology, College of Health Sciences, Dong-A University, Busan, 49315, Republic of Korea
| | - Jieun Jeon
- Department of Medicinal Biotechnology, College of Health Sciences, Dong-A University, Busan, 49315, Republic of Korea
| | - Rae Hee Kang
- Department of Medicinal Biotechnology, College of Health Sciences, Dong-A University, Busan, 49315, Republic of Korea
| | - Kumju Youn
- Department of Food Science and Nutrition, Dong-A University, Busan, 49315, Republic of Korea
| | - Mira Jun
- Department of Food Science and Nutrition, Dong-A University, Busan, 49315, Republic of Korea; Institute of Convergence Bio-Health, Dong-A University, Busan, 49315, Republic of Korea
| | - Young Choon Lee
- Department of Medicinal Biotechnology, College of Health Sciences, Dong-A University, Busan, 49315, Republic of Korea; Institute of Convergence Bio-Health, Dong-A University, Busan, 49315, Republic of Korea
| | - Jong Hoon Ryu
- Department of Oriental Pharmaceutical Science, College of Pharmacy, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Dong Hyun Kim
- Department of Medicinal Biotechnology, College of Health Sciences, Dong-A University, Busan, 49315, Republic of Korea; Institute of Convergence Bio-Health, Dong-A University, Busan, 49315, Republic of Korea.
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François-Moutal L, Dustrude ET, Wang Y, Brustovetsky T, Dorame A, Ju W, Moutal A, Perez-Miller S, Brustovetsky N, Gokhale V, Khanna M, Khanna R. Inhibition of the Ubc9 E2 SUMO-conjugating enzyme-CRMP2 interaction decreases NaV1.7 currents and reverses experimental neuropathic pain. Pain 2018; 159:2115-2127. [PMID: 29847471 PMCID: PMC6150792 DOI: 10.1097/j.pain.0000000000001294] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
We previously reported that destruction of the small ubiquitin-like modifier (SUMO) modification site in the axonal collapsin response mediator protein 2 (CRMP2) was sufficient to selectively decrease trafficking of the voltage-gated sodium channel NaV1.7 and reverse neuropathic pain. Here, we further interrogate the biophysical nature of the interaction between CRMP2 and the SUMOylation machinery, and test the hypothesis that a rationally designed CRMP2 SUMOylation motif (CSM) peptide can interrupt E2 SUMO-conjugating enzyme Ubc9-dependent modification of CRMP2 leading to a similar suppression of NaV1.7 currents. Microscale thermophoresis and amplified luminescent proximity homogeneous alpha assay revealed a low micromolar binding affinity between CRMP2 and Ubc9. A heptamer peptide harboring CRMP2's SUMO motif, also bound with similar affinity to Ubc9, disrupted the CRMP2-Ubc9 interaction in a concentration-dependent manner. Importantly, incubation of a tat-conjugated cell-penetrating peptide (t-CSM) decreased sodium currents, predominantly NaV1.7, in a model neuronal cell line. Dialysis of t-CSM peptide reduced CRMP2 SUMOylation and blocked surface trafficking of NaV1.7 in rat sensory neurons. Fluorescence dye-based imaging in rat sensory neurons demonstrated inhibition of sodium influx in the presence of t-CSM peptide; by contrast, calcium influx was unaffected. Finally, t-CSM effectively reversed persistent mechanical and thermal hypersensitivity induced by a spinal nerve injury, a model of neuropathic pain. Structural modeling has now identified a pocket-harboring CRMP2's SUMOylation motif that, when targeted through computational screening of ligands/molecules, is expected to identify small molecules that will biochemically and functionally target CRMP2's SUMOylation to reduce NaV1.7 currents and reverse neuropathic pain.
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Affiliation(s)
- Liberty François-Moutal
- Department of Pharmacology, The University of Arizona Health Sciences, Tucson, Arizona 85724
| | - Erik T. Dustrude
- Department of Pharmacology, The University of Arizona Health Sciences, Tucson, Arizona 85724
| | - Yue Wang
- Department of Pharmacology, The University of Arizona Health Sciences, Tucson, Arizona 85724
| | - Tatiana Brustovetsky
- Department of Pharmacology and Toxicology, and Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Angie Dorame
- Department of Pharmacology, The University of Arizona Health Sciences, Tucson, Arizona 85724
| | - Weina Ju
- Department of Neurology, First Hospital of Jilin University, Jilin University, 71 Xinmin Street, Changchun, 130021, Jilin Province, China
- Department of Pharmacology, First Hospital of Jilin University, Jilin University, 71 Xinmin Street, Changchun, 130021, Jilin Province, China
| | - Aubin Moutal
- Department of Pharmacology, The University of Arizona Health Sciences, Tucson, Arizona 85724
| | - Samantha Perez-Miller
- Department of Pharmacology, The University of Arizona Health Sciences, Tucson, Arizona 85724
| | - Nickolay Brustovetsky
- Department of Pharmacology and Toxicology, and Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Vijay Gokhale
- Department of Pharmacology and Toxicology, College of Pharmacy, The University of Arizona Health Sciences, Tucson, Arizona 85724
| | - May Khanna
- Department of Pharmacology, The University of Arizona Health Sciences, Tucson, Arizona 85724
- The Center for Innovation in Brain Sciences, The University of Arizona Health Sciences, Tucson, Arizona 85724
| | - Rajesh Khanna
- Department of Pharmacology, The University of Arizona Health Sciences, Tucson, Arizona 85724
- Neuroscience Graduate Interdisciplinary Program, College of Medicine, The University of Arizona Health Sciences, Tucson, Arizona 85724
- The Center for Innovation in Brain Sciences, The University of Arizona Health Sciences, Tucson, Arizona 85724
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Stankova T, Piepkorn L, Bayer TA, Jahn O, Tirard M. SUMO1-conjugation is altered during normal aging but not by increased amyloid burden. Aging Cell 2018; 17:e12760. [PMID: 29633471 PMCID: PMC6052395 DOI: 10.1111/acel.12760] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/05/2018] [Indexed: 01/09/2023] Open
Abstract
A proper equilibrium of post-translational protein modifications is essential for normal cell physiology, and alteration in these processes is key in neurodegenerative disorders such as Alzheimer's disease. Recently, for instance, alteration in protein SUMOylation has been linked to amyloid pathology. In this work, we aimed to elucidate the role of protein SUMOylation during aging and increased amyloid burden in vivo using a His6 -HA-SUMO1 knock-in mouse in the 5XFAD model of Alzheimer's disease. Interestingly, we did not observe any alteration in the levels of SUMO1-conjugation related to Alzheimer's disease. SUMO1 conjugates remained localized to neuronal nuclei upon increased amyloid burden and during aging and were not detected in amyloid plaques. Surprisingly however, we observed age-related alterations in global levels of SUMO1 conjugation and at the level of individual substrates using quantitative proteomic analysis. The identified SUMO1 candidate substrates are dominantly nuclear proteins, mainly involved in RNA processing. Our findings open novel directions of research for studying a functional link between SUMOylation and its role in guarding nuclear functions during aging.
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Affiliation(s)
- Trayana Stankova
- Department of Molecular Neurobiology; Max Planck Institute of Experimental Medicine; Göttingen Germany
| | - Lars Piepkorn
- Max Planck Institute of Experimental Medicine; Proteomics Group; Göttingen Germany
| | - Thomas A. Bayer
- Division of Molecular Psychiatry; Department of Psychiatry and Psychotherapy; University Medical Center Göttingen (UMG); Göttingen Germany
| | - Olaf Jahn
- Max Planck Institute of Experimental Medicine; Proteomics Group; Göttingen Germany
| | - Marilyn Tirard
- Department of Molecular Neurobiology; Max Planck Institute of Experimental Medicine; Göttingen Germany
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Shan X, Roberts C, Lan Y, Percec I. Age Alters Chromatin Structure and Expression of SUMO Proteins under Stress Conditions in Human Adipose-Derived Stem Cells. Sci Rep 2018; 8:11502. [PMID: 30065345 PMCID: PMC6068198 DOI: 10.1038/s41598-018-29775-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Accepted: 07/14/2018] [Indexed: 12/19/2022] Open
Abstract
Adult stem cells play a critical role in tissue homeostasis and repair. Aging leads to a decline in stem cells’ regenerative capacity that contributes significantly to the maintenance of organ and tissue functions. Age-dependent genomic and epigenetic modifications together play a role in the disruption of critical cellular pathways. However, the epigenetic mechanisms responsible for the decline of adult stem cell functions remain to be well established. Here, we investigated age-dependent, genome-wide alterations in the chromatin accessibility of primary human adipose-derived stem cells (ASCs) in comparison to age-matched fibroblasts via ATAC-seq technology. Our results demonstrate that aging ASCs possess globally more stable chromatin accessibility profiles as compared to aging fibroblasts, suggesting that robust regulatory mechanisms maintain adult stem cell chromatin structure against aging. Furthermore, we observed age-dependent subtle changes in promoter nucleosome positioning in selective pathways during aging, concurrent with altered small ubiquitin-related modifier (SUMO) protein expression under stress conditions. Together, our data suggest a significant role for nucleosome positioning in sumoylation pathway regulation in stress response during adult stem cell aging. The differences described here between the chromatin structure of human ASCs and fibroblasts will further elucidate the mechanisms regulating gene expression during aging in both stem cells and differentiated cells.
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Affiliation(s)
- Xiaoyin Shan
- Department of Surgery, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Cleresa Roberts
- Department of Surgery, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Yemin Lan
- Epigenetics Institute, Department of Cell and Developmental Biology, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Ivona Percec
- Department of Surgery, University of Pennsylvania, Philadelphia, PA, 19104, USA.
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Abstract
Post-translational modification of substrate proteins by SUMO conjugation regulates a diverse array of cellular processes. While predominantly a nuclear protein modification, there is a growing appreciation that SUMOylation of proteins outside the nucleus plays direct roles in controlling synaptic transmission, neuronal excitability, and adaptive responses to cell stress. Furthermore, alterations in protein SUMOylation are observed in a wide range of neurological and neurodegenerative diseases, and several extranuclear disease-associated proteins have been shown to be directly SUMOylated. Here, focusing mainly on SUMOylation of synaptic and mitochondrial proteins, we outline recent developments and discoveries, and present our opinion as to the most exciting avenues for future research to define how SUMOylation of extranuclear proteins regulates neuronal and synaptic function.
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Affiliation(s)
- Jeremy M Henley
- School of Biochemistry, Centre for Synaptic Plasticity, Biomedical Sciences Building, University of Bristol, Bristol, BS8 1TD, UK.
| | - Ruth E Carmichael
- School of Biochemistry, Centre for Synaptic Plasticity, Biomedical Sciences Building, University of Bristol, Bristol, BS8 1TD, UK
| | - Kevin A Wilkinson
- School of Biochemistry, Centre for Synaptic Plasticity, Biomedical Sciences Building, University of Bristol, Bristol, BS8 1TD, UK.
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Vijayakumaran S, Pountney DL. SUMOylation, aging and autophagy in neurodegeneration. Neurotoxicology 2018; 66:53-57. [PMID: 29490232 DOI: 10.1016/j.neuro.2018.02.015] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Revised: 02/22/2018] [Accepted: 02/25/2018] [Indexed: 12/14/2022]
Abstract
Protein homeostasis is essential for the wellbeing of several cellular systems. Post-translational modifications (PTM) coordinate various pathways in response to abnormal aggregation of proteins in neurodegenerative disease states. In the presence of accumulating misfolded proteins and toxic aggregates, the small ubiquitin-like modifier (SUMO) is associated with various substrates, including chaperones and other recruited factors, for refolding and for clearance via proteolytic systems, such as the ubiquitin-proteasome pathway (UPS), chaperone-mediated autophagy (CMA) and macroautophagy. However, these pathological aggregates are also known to inhibit both the UPS and CMA, further creating a toxic burden on cells. This review suggests that re-routing cytotoxic aggregates towards selective macroautophagy by modulating the SUMO pathway could provide new mechanisms towards neuroprotection.
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Affiliation(s)
- Shamini Vijayakumaran
- Menzies Health Institute Queensland, School of Medical Science, Griffith University, Gold Coast, Queensland 4222, Australia
| | - Dean L Pountney
- Menzies Health Institute Queensland, School of Medical Science, Griffith University, Gold Coast, Queensland 4222, Australia.
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Knock E, Matsuzaki S, Takamura H, Satoh K, Rooke G, Han K, Zhang H, Staniszewski A, Katayama T, Arancio O, Fraser PE. SUMO1 impact on Alzheimer disease pathology in an amyloid-depositing mouse model. Neurobiol Dis 2018; 110:154-165. [DOI: 10.1016/j.nbd.2017.11.015] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Revised: 11/20/2017] [Accepted: 11/29/2017] [Indexed: 12/27/2022] Open
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Akiyama H, Nakadate K, Sakakibara SI. Synaptic localization of the SUMOylation-regulating protease SENP5 in the adult mouse brain. J Comp Neurol 2018; 526:990-1005. [DOI: 10.1002/cne.24384] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Revised: 12/04/2017] [Accepted: 12/11/2017] [Indexed: 02/06/2023]
Affiliation(s)
- Hiroki Akiyama
- Laboratory for Molecular Neurobiology, Faculty of Human Sciences; Waseda University; Tokorozawa Saitama 359-1192 Japan
| | - Kazuhiko Nakadate
- Department of Basic Science; Educational and Research Center for Pharmacy, Meiji Pharmaceutical University; Kiyose Tokyo 204-858 Japan
| | - Shin-ichi Sakakibara
- Laboratory for Molecular Neurobiology, Faculty of Human Sciences; Waseda University; Tokorozawa Saitama 359-1192 Japan
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PFN2a, a new partner of RARα in the cytoplasm. Biochem Biophys Res Commun 2018; 495:846-853. [PMID: 29158086 DOI: 10.1016/j.bbrc.2017.11.096] [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: 11/09/2017] [Accepted: 11/15/2017] [Indexed: 11/23/2022]
Abstract
Retinoic acid receptors (RARs) are classically considered as nuclear ligand-dependent regulators of transcription. Here we highlighted a novel face of the RARα subtype: RARα is present in low amounts in the cytoplasm of mouse embryonic fibroblasts (MEFs) where it interacts with profilin2a (PFN2A), a small actin-binding protein involved in filaments polymerization. The interaction involves the N-terminal proline-rich motif (PRM) of RARα and the SH3-like domain of PFN2a. When increased in the cytoplasm, RARα competes with other PFN2a-binding proteins bearing PRMs and involved in actin filaments elongation. Consequently, the actin filament network is altered and MEFs adhesion is decreased. This novel role opens novel avenues for the understanding of pathologies characterized by increased levels of cytoplasmic RARα.
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Polanco JC, Li C, Bodea LG, Martinez-Marmol R, Meunier FA, Götz J. Amyloid-β and tau complexity — towards improved biomarkers and targeted therapies. Nat Rev Neurol 2017; 14:22-39. [DOI: 10.1038/nrneurol.2017.162] [Citation(s) in RCA: 235] [Impact Index Per Article: 33.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Abstract
Protein modification with the small ubiquitin-related modifier (SUMO) can affect protein function, enzyme activity, protein-protein interactions, protein stability, protein targeting and cellular localization. SUMO influences the function and regulation of metabolic enzymes within pathways, and in some cases targets entire metabolic pathways by affecting the activity of transcription factors or by facilitating the translocation of entire metabolic pathways to subcellular compartments. SUMO modification is also a key component of nutrient- and metabolic-sensing mechanisms that regulate cellular metabolism. In addition to its established roles in maintaining metabolic homeostasis, there is increasing evidence that SUMO is a key factor in facilitating cellular stress responses through the regulation and/or adaptation of the most fundamental metabolic processes, including energy and nucleotide metabolism. This review focuses on the role of SUMO in cellular metabolism and metabolic disease.
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SUMOylation and calcium signalling: potential roles in the brain and beyond. Neuronal Signal 2017; 1:NS20160010. [PMID: 32714579 PMCID: PMC7373246 DOI: 10.1042/ns20160010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2017] [Revised: 07/10/2017] [Accepted: 07/11/2017] [Indexed: 12/23/2022] Open
Abstract
Small ubiquitin-like modifier (SUMO) conjugation (or SUMOylation) is a post-translational protein modification implicated in alterations to protein expression, localization and function. Despite a number of nuclear roles for SUMO being well characterized, this process has only started to be explored in relation to membrane proteins, such as ion channels. Calcium ion (Ca2+) signalling is crucial for the normal functioning of cells and is also involved in the pathophysiological mechanisms underlying relevant neurological and cardiovascular diseases. Intracellular Ca2+ levels are tightly regulated; at rest, most Ca2+ is retained in organelles, such as the sarcoplasmic reticulum, or in the extracellular space, whereas depolarization triggers a series of events leading to Ca2+ entry, followed by extrusion and reuptake. The mechanisms that maintain Ca2+ homoeostasis are candidates for modulation at the post-translational level. Here, we review the effects of protein SUMOylation, including Ca2+ channels, their proteome and other proteins associated with Ca2+ signalling, on vital cellular functions, such as neurotransmission within the central nervous system (CNS) and in additional systems, most prominently here, in the cardiac system.
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Yoo DY, Kim DW, Kwon HJ, Jung HY, Nam SM, Kim JW, Chung JY, Won MH, Yoon YS, Choi SY, Hwang IK. Chronic administration of SUMO‑1 has negative effects on novel object recognition memory as well as cell proliferation and neuroblast differentiation in the mouse dentate gyrus. Mol Med Rep 2017; 16:3427-3432. [PMID: 28713906 DOI: 10.3892/mmr.2017.6946] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Accepted: 05/09/2017] [Indexed: 11/05/2022] Open
Abstract
Post‑translational modifications have been associated with developmental and aging processes, as well as in the pathogenesis of certain diseases. The present study aimed to investigate the effects of small ubiquitin‑like modifier 1 (SUMO‑1) on hippocampal dependent memory function, cell proliferation and neuroblast differentiation. To facilitate the delivery of SUMO‑1 into hippocampal neurons, a transactivator of transcription (Tat)‑SUMO‑1 fusion protein was constructed and mice were divided into two groups: A vehicle (Tat peptide)‑treated group and a Tat‑SUMO‑1‑treated group. The vehicle or Tat‑SUMO‑1 was administered intraperitoneally to 7‑week‑old mice once daily for 3 weeks, and a novel object recognition test was conducted following the final treatment; the animals were sacrificed 2 h following the test for further analysis. Administration of Tat‑SUMO‑1 significantly decreased exploration of a new object in a novel object recognition test compared with mice in the vehicle‑treated group. In addition, cell proliferation and neuroblast differentiation analyses (based on Ki67 and doublecortin immunohistochemistry, respectively) revealed that the administration of Tat‑SUMO‑1 significantly reduced cell proliferation and neuroblast differentiation in the dentate gyrus. These results suggested that chronic supplementation of Tat‑SUMO‑1 affects hippocampal functions by decreasing cell proliferation and neuroblast differentiation in the mouse dentate gyrus.
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Affiliation(s)
- Dae Young Yoo
- Department of Anatomy and Cell Biology, College of Veterinary Medicine, Research Institute for Veterinary Science, Seoul National University, Seoul 08826, Republic of Korea
| | - Dae Won Kim
- Department of Biochemistry and Molecular Biology, Research Institute of Oral Sciences, College of Dentistry, Kangneung‑Wonju National University, Gangneung 25457, Republic of Korea
| | - Hyun Jung Kwon
- Department of Biochemistry and Molecular Biology, Research Institute of Oral Sciences, College of Dentistry, Kangneung‑Wonju National University, Gangneung 25457, Republic of Korea
| | - Hyo Young Jung
- Department of Anatomy and Cell Biology, College of Veterinary Medicine, Research Institute for Veterinary Science, Seoul National University, Seoul 08826, Republic of Korea
| | - Sung Min Nam
- Department of Anatomy and Cell Biology, College of Veterinary Medicine, Research Institute for Veterinary Science, Seoul National University, Seoul 08826, Republic of Korea
| | - Jong Whi Kim
- Department of Anatomy and Cell Biology, College of Veterinary Medicine, Research Institute for Veterinary Science, Seoul National University, Seoul 08826, Republic of Korea
| | - Jin Young Chung
- Department of Veterinary Internal Medicine and Geriatrics, College of Veterinary Medicine, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Moo-Ho Won
- Department of Neurobiology, School of Medicine, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Yeo Sung Yoon
- Department of Anatomy and Cell Biology, College of Veterinary Medicine, Research Institute for Veterinary Science, Seoul National University, Seoul 08826, Republic of Korea
| | - Soo Young Choi
- Department of Biomedical Sciences, Research Institute for Bioscience and Biotechnology, Hallym University, Chuncheon 24252, Republic of Korea
| | - In Koo Hwang
- Department of Anatomy and Cell Biology, College of Veterinary Medicine, Research Institute for Veterinary Science, Seoul National University, Seoul 08826, Republic of Korea
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Peters M, Wielsch B, Boltze J. The role of SUMOylation in cerebral hypoxia and ischemia. Neurochem Int 2017; 107:66-77. [DOI: 10.1016/j.neuint.2017.03.011] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Revised: 03/09/2017] [Accepted: 03/15/2017] [Indexed: 10/19/2022]
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Genome-wide network-based pathway analysis of CSF t-tau/Aβ1-42 ratio in the ADNI cohort. BMC Genomics 2017; 18:421. [PMID: 28558704 PMCID: PMC5450240 DOI: 10.1186/s12864-017-3798-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2016] [Accepted: 05/16/2017] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND The cerebrospinal fluid (CSF) levels of total tau (t-tau) and Aβ1-42 are potential early diagnostic markers for probable Alzheimer's disease (AD). The influence of genetic variation on these CSF biomarkers has been investigated in candidate or genome-wide association studies (GWAS). However, the investigation of statistically modest associations in GWAS in the context of biological networks is still an under-explored topic in AD studies. The main objective of this study is to gain further biological insights via the integration of statistical gene associations in AD with physical protein interaction networks. RESULTS The CSF and genotyping data of 843 study subjects (199 CN, 85 SMC, 239 EMCI, 207 LMCI, 113 AD) from the Alzheimer's Disease Neuroimaging Initiative (ADNI) were analyzed. PLINK was used to perform GWAS on the t-tau/Aβ1-42 ratio using quality controlled genotype data, including 563,980 single nucleotide polymorphisms (SNPs), with age, sex and diagnosis as covariates. Gene-level p-values were obtained by VEGAS2. Genes with p-value ≤ 0.05 were mapped on to a protein-protein interaction (PPI) network (9,617 nodes, 39,240 edges, from the HPRD Database). We integrated a consensus model strategy into the iPINBPA network analysis framework, and named it as CM-iPINBPA. Four consensus modules (CMs) were discovered by CM-iPINBPA, and were functionally annotated using the pathway analysis tool Enrichr. The intersection of four CMs forms a common subnetwork of 29 genes, including those related to tau phosphorylation (GSK3B, SUMO1, AKAP5, CALM1 and DLG4), amyloid beta production (CASP8, PIK3R1, PPA1, PARP1, CSNK2A1, NGFR, and RHOA), and AD (BCL3, CFLAR, SMAD1, and HIF1A). CONCLUSIONS This study coupled a consensus module (CM) strategy with the iPINBPA network analysis framework, and applied it to the GWAS of CSF t-tau/Aβ1-42 ratio in an AD study. The genome-wide network analysis yielded 4 enriched CMs that share not only genes related to tau phosphorylation or amyloid beta production but also multiple genes enriching several KEGG pathways such as Alzheimer's disease, colorectal cancer, gliomas, renal cell carcinoma, Huntington's disease, and others. This study demonstrated that integration of gene-level associations with CMs could yield statistically significant findings to offer valuable biological insights (e.g., functional interaction among the protein products of these genes) and suggest high confidence candidates for subsequent analyses.
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Nair RR, Patil S, Tiron A, Kanhema T, Panja D, Schiro L, Parobczak K, Wilczynski G, Bramham CR. Dynamic Arc SUMOylation and Selective Interaction with F-Actin-Binding Protein Drebrin A in LTP Consolidation In Vivo. Front Synaptic Neurosci 2017; 9:8. [PMID: 28553222 PMCID: PMC5426369 DOI: 10.3389/fnsyn.2017.00008] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Accepted: 04/21/2017] [Indexed: 01/21/2023] Open
Abstract
Activity-regulatedcytoskeleton-associated protein (Arc) protein is implicated as a master regulator of long-term forms of synaptic plasticity and memory formation, but the mechanisms controlling Arc protein function are little known. Post-translation modification by small ubiquitin-like modifier (SUMO) proteins has emerged as a major mechanism for regulating protein-protein interactions and function. We first show in cell lines that ectopically expressed Arc undergoes mono-SUMOylation. The covalent addition of a single SUMO1 protein was confirmed by in vitro SUMOylation of immunoprecipitated Arc. To explore regulation of endogenous Arc during synaptic plasticity, we induced long-term potentiation (LTP) in the dentate gyrus of live anesthetized rats. Using coimmunoprecipitation of native proteins, we show that Arc synthesized during the maintenance phase of LTP undergoes dynamic mono-SUMO1-ylation. Levels of unmodified Arc increase in multiple subcellular fractions (cytosol, membrane, nuclear and cytoskeletal), whereas enhanced Arc SUMOylation was specific to the synaptoneurosomal and the cytoskeletal fractions. Dentate gyrus LTP consolidation requires a period of sustained Arc synthesis driven by brain-derived neurotrophic factor (BDNF) signaling. Local infusion of the BDNF scavenger, TrkB-Fc, during LTP maintenance resulted in rapid reversion of LTP, inhibition of Arc synthesis and loss of enhanced Arc SUMO1ylation. Furthermore, coimmunoprecipitation analysis showed that SUMO1-ylated Arc forms a complex with the F-actin-binding protein drebrin A, a major regulator of cytoskeletal dynamics in dendritic spines. Although Arc also interacted with dynamin 2, calcium/calmodulindependentprotein kinase II-beta (CaMKIIβ), and postsynaptic density protein-95 (PSD-95), these complexes lacked SUMOylated Arc. The results support a model in which newly synthesized Arc is SUMOylated and targeted for actin cytoskeletal regulation during in vivo LTP.
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Affiliation(s)
- Rajeevkumar R Nair
- Department of Biomedicine and KG Jebsen Centre for Neuropsychiatric Disorders, University of BergenBergen, Norway
| | - Sudarshan Patil
- Department of Biomedicine and KG Jebsen Centre for Neuropsychiatric Disorders, University of BergenBergen, Norway
| | - Adrian Tiron
- Department of Biomedicine and KG Jebsen Centre for Neuropsychiatric Disorders, University of BergenBergen, Norway
| | - Tambudzai Kanhema
- Department of Biomedicine and KG Jebsen Centre for Neuropsychiatric Disorders, University of BergenBergen, Norway
| | - Debabrata Panja
- Department of Biomedicine and KG Jebsen Centre for Neuropsychiatric Disorders, University of BergenBergen, Norway
| | - Lars Schiro
- Department of Biomedicine and KG Jebsen Centre for Neuropsychiatric Disorders, University of BergenBergen, Norway
| | - Kamil Parobczak
- Laboratory of Molecular and Systemic Neuromorphology, Department of Neurophysiology, Nencki Institute of Experimental BiologyWarsaw, Poland
| | - Grzegorz Wilczynski
- Laboratory of Molecular and Systemic Neuromorphology, Department of Neurophysiology, Nencki Institute of Experimental BiologyWarsaw, Poland
| | - Clive R Bramham
- Department of Biomedicine and KG Jebsen Centre for Neuropsychiatric Disorders, University of BergenBergen, Norway
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Usui N, Co M, Harper M, Rieger MA, Dougherty JD, Konopka G. Sumoylation of FOXP2 Regulates Motor Function and Vocal Communication Through Purkinje Cell Development. Biol Psychiatry 2017; 81:220-230. [PMID: 27009683 PMCID: PMC4983264 DOI: 10.1016/j.biopsych.2016.02.008] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Revised: 01/29/2016] [Accepted: 02/01/2016] [Indexed: 12/22/2022]
Abstract
BACKGROUND Mutations in the gene encoding the transcription factor forkhead box P2 (FOXP2) result in brain developmental abnormalities, including reduced gray matter in both human patients and rodent models and speech and language deficits. However, neither the region-specific function of FOXP2 in the brain, in particular the cerebellum, nor the effects of any posttranslational modifications of FOXP2 in the brain and disorders have been explored. METHODS We characterized sumoylation of FOXP2 biochemically and analyzed the region-specific function and sumoylation of FOXP2 in the developing mouse cerebellum. Using in utero electroporation to manipulate the sumoylation state of FOXP2 as well as Foxp2 expression levels in Purkinje cells of the cerebellum in vivo, we reduced Foxp2 expression approximately 40% in the mouse cerebellum. Such a reduction approximates the haploinsufficiency observed in human patients who demonstrate speech and language impairments. RESULTS We identified sumoylation of FOXP2 at K674 (K673 in mice) in the cerebellum of neonates. In vitro co-immunoprecipitation and in vivo colocalization experiments suggest that PIAS3 acts as the small ubiquitin-like modifier E3 ligase for FOXP2 sumoylation. This sumoylation modifies transcriptional regulation by FOXP2. We demonstrated that FOXP2 sumoylation is required for regulation of cerebellar motor function and vocal communication, likely through dendritic outgrowth and arborization of Purkinje cells in the mouse cerebellum. CONCLUSIONS Sumoylation of FOXP2 in neonatal mouse cerebellum regulates Purkinje cell development and motor functions and vocal communication, demonstrating evidence for sumoylation in regulating mammalian behaviors.
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Affiliation(s)
- Noriyoshi Usui
- Department of Neuroscience, University of Texas Southwestern Medical Center, Dallas, TX 75390-911, USA
| | - Marissa Co
- Department of Neuroscience, University of Texas Southwestern Medical Center, Dallas, TX 75390-911, USA
| | - Matthew Harper
- Department of Neuroscience, University of Texas Southwestern Medical Center, Dallas, TX 75390-911, USA
| | - Michael A. Rieger
- Department of Genetics and Department of Psychiatry, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Joseph D. Dougherty
- Department of Genetics and Department of Psychiatry, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Genevieve Konopka
- Department of Neuroscience, University of Texas Southwestern Medical Center, Dallas, Texas.
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