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Vieira TCRG, Barros CA, Domingues R, Outeiro TF. PrP meets alpha-synuclein: Molecular mechanisms and implications for disease. J Neurochem 2024; 168:1625-1639. [PMID: 37855859 DOI: 10.1111/jnc.15992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 09/19/2023] [Accepted: 10/01/2023] [Indexed: 10/20/2023]
Abstract
The discovery of prions has challenged dogmas and has revolutionized our understanding of protein-misfolding diseases. The concept of self-propagation via protein conformational changes, originally discovered for the prion protein (PrP), also applies to other proteins that exhibit similar behavior, such as alpha-synuclein (aSyn), a central player in Parkinson's disease and in other synucleinopathies. aSyn pathology appears to spread from one cell to another during disease progression, and involves the misfolding and aggregation of aSyn. How the transfer of aSyn between cells occurs is still being studied, but one important hypothesis involves receptor-mediated transport. Interestingly, recent studies indicate that the cellular prion protein (PrPC) may play a crucial role in this process. PrPC has been shown to act as a receptor/sensor for protein aggregates in different neurodegenerative disorders, including Alzheimer's disease and amyotrophic lateral sclerosis. Here, we provide a comprehensive overview of the current state of knowledge regarding the interaction between aSyn and PrPC and discuss its role in synucleinopathies. We examine the properties of PrP and aSyn, including their structure, function, and aggregation. Additionally, we discuss the current understanding of PrPC's role as a receptor/sensor for aSyn aggregates and identify remaining unanswered questions in this area of research. Ultimately, we posit that exploring the interaction between aSyn and PrPC may offer potential treatment options for synucleinopathies.
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Affiliation(s)
- Tuane C R G Vieira
- Institute of Medical Biochemistry Leopoldo de Meis and National Institute of Science and Technology for Structural Biology and Bioimaging, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Caroline A Barros
- Institute of Medical Biochemistry Leopoldo de Meis and National Institute of Science and Technology for Structural Biology and Bioimaging, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Renato Domingues
- Department of Experimental Neurodegeneration, Center for Biostructural Imaging of Neurodegeneration, University Medical Center Göttingen, Göttingen, Germany
| | - Tiago Fleming Outeiro
- Department of Experimental Neurodegeneration, Center for Biostructural Imaging of Neurodegeneration, University Medical Center Göttingen, Göttingen, Germany
- Max Planck Institute for Multidisciplinary Sciences, Göttingen, Germany
- Faculty of Medical Sciences, Translational and Clinical Research Institute, Newcastle University, Newcastle Upon Tyne, UK
- Scientific Employee with an Honorary Contract at Deutsches Zentrum für Neurodegenerative Erkrankungen (DZNE), Göttingen, Germany
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2
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Chrobak AA, Pańczyszyn-Trzewik P, Król P, Pawelec-Bąk M, Dudek D, Siwek M. New Light on Prions: Putative Role of PrP c in Pathophysiology of Mood Disorders. Int J Mol Sci 2024; 25:2967. [PMID: 38474214 PMCID: PMC10932175 DOI: 10.3390/ijms25052967] [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: 01/15/2024] [Revised: 02/28/2024] [Accepted: 03/03/2024] [Indexed: 03/14/2024] Open
Abstract
Mood disorders are highly prevalent and heterogenous mental illnesses with devastating rates of mortality and treatment resistance. The molecular basis of those conditions involves complex interplay between genetic and environmental factors. Currently, there are no objective procedures for diagnosis, prognosis and personalization of patients' treatment. There is an urgent need to search for novel molecular targets for biomarkers in mood disorders. Cellular prion protein (PrPc) is infamous for its potential to convert its insoluble form, leading to neurodegeneration in Creutzfeldt-Jacob disease. Meanwhile, in its physiological state, PrPc presents neuroprotective features and regulates neurotransmission and synaptic plasticity. The aim of this study is to integrate the available knowledge about molecular mechanisms underlying the impact of PrPc on the pathophysiology of mood disorders. Our review indicates an important role of this protein in regulation of cognitive functions, emotions, sleep and biological rhythms, and its deficiency results in depressive-like behavior and cognitive impairment. PrPc plays a neuroprotective role against excitotoxicity, oxidative stress and inflammation, the main pathophysiological events in the course of mood disorders. Research indicates that PrPc may be a promising biomarker of cognitive decline. There is an urgent need of human studies to elucidate its potential utility in clinical practice.
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Affiliation(s)
- Adrian Andrzej Chrobak
- Department of Adult Psychiatry, Jagiellonian University Medical College, Kopernika 21A, 31-501 Kraków, Poland; (A.A.C.); (P.K.); (D.D.)
| | - Patrycja Pańczyszyn-Trzewik
- Department of Human Physiology, Institute of Medical Sciences, Medical College of Rzeszow University, Kopisto 2a, 35-959 Rzeszow, Poland;
| | - Patrycja Król
- Department of Adult Psychiatry, Jagiellonian University Medical College, Kopernika 21A, 31-501 Kraków, Poland; (A.A.C.); (P.K.); (D.D.)
| | - Magdalena Pawelec-Bąk
- Department of Affective Disorders, Jagiellonian University Medical College, Kopernika 21A, 31-501 Kraków, Poland;
| | - Dominika Dudek
- Department of Adult Psychiatry, Jagiellonian University Medical College, Kopernika 21A, 31-501 Kraków, Poland; (A.A.C.); (P.K.); (D.D.)
| | - Marcin Siwek
- Department of Affective Disorders, Jagiellonian University Medical College, Kopernika 21A, 31-501 Kraków, Poland;
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da Luz MHM, Pino JMV, Mônico-Neto M, de Amorim PN, Antunes HKM, Porcionatto MA, Lee KS. Sleep deprivation modulates APOE and LDL receptor-related protein 1 through thyroid hormone T4 and impairs Aβ clearance in hippocampus of rats. Biochim Biophys Acta Mol Basis Dis 2023; 1869:166729. [PMID: 37137431 DOI: 10.1016/j.bbadis.2023.166729] [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: 12/24/2022] [Revised: 04/24/2023] [Accepted: 04/25/2023] [Indexed: 05/05/2023]
Abstract
Alzheimer's disease is the most common form of dementia. One of its pathological hallmarks is Aβ accumulation, which is influenced by APOE genotype and expression, as well as by sleep homeostasis. However, conflicting mechanisms for APOE roles in Aβ clearance have been reported, and the relationship between APOE and sleep also remains unclear. In this study, we aimed to investigate how hormonal alteration caused by sleep deprivation affects APOE and its receptors in rats, and to evaluate the role of different cell types in Aβ clearance. Paradoxical sleep deprivation for 96 h increased Aβ level in hippocampus with concomitant reduction of APOE and LRP1 at the time point within the resting period. Sleep deprivation also significantly reduced T4 levels in both active and resting times. To evaluate the effect of T4 variation, C6 glial cells and primary brain endothelial cells were treated with T4. High T4 level (300 ng/mL) increased APOE, but reduced LRP1 and LDL-R in C6 cells, while in primary endothelial cells, LDL-R levels were increased. Treatment of C6 cells with exogenous APOE reduced LRP1 and Aβ uptake. These results suggest that T4 modulates LRP1 and LDL-R in both cell types, but in the opposite manner, thus, sleep deprivation might modify the ratio of the receptors in blood-brain barrier and glial cells by altering T4 levels. Considering that LRP1 and LDL-R are important for Aβ clearance, sleep deprivation might also affect the degree of participation of glia in Aβ clearance, and consequently, turnover of Aβ in the brain.
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Affiliation(s)
| | | | - Marcos Mônico-Neto
- Post Graduate Program of Interdisciplinary Health Sciences, Universidade Federal de São Paulo, Santos, Brazil
| | | | | | | | - Kil Sun Lee
- Department of Biochemistry, Universidade Federal de São Paulo, Brazil.
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Shixing X, Xueyan H, Yuan R, Wei T, Wei W. Enriched environment can reverse chronic sleep deprivation-induced damage to cellular plasticity in the dentate gyrus of the hippocampus. Transl Neurosci 2023; 14:20220280. [PMID: 36969794 PMCID: PMC10031502 DOI: 10.1515/tnsci-2022-0280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Revised: 02/15/2023] [Accepted: 02/24/2023] [Indexed: 03/24/2023] Open
Abstract
Objective We studied whether enriched environment (EE), a classic epigenetics paradigm, can prevent cellular plasticity damage caused by chronic sleep deprivation (SD). Methods We performed SD in mice by a modified multi-platform method (MMPM). Mice in the SD group were deprived of sleep for 18 h a day. In addition, half of the mice in the chronic SD group were exposed to EE stimuli for 6 h per day. Immunostaining analyzed neurogenesis and neural progenitor cell-differentiated phenotypes in the hippocampal dentate gyrus (DG) region. Result At 13 weeks, compared with the control group, SD severely impaired the proliferation and differentiation of neural stem cells, and EE completely reversed the process. SD can induce gliosis in the mouse hippocampus, and EE can delay the process. Conclusion: Our results suggest that chronic SD may damage the neurogenesis in the DG of the hippocampus. However, enrichment stimulation can reverse the processing by promoting neuronal repair related to neuronal plasticity.
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Affiliation(s)
- Xue Shixing
- Department of Neurology, Affiliated Xinhua Hospital of Dalian University, Dalian, Liaoning Province, China
| | - Hou Xueyan
- Department of Medical Imaging, Affiliated Xinhua Hospital of Dalian University, Dalian, Liaoning Province, China
| | - Ren Yuan
- Department of Neurology, Affiliated Xinhua Hospital of Dalian University, Dalian, Liaoning Province, China
| | - Tang Wei
- Department of Neurology, Affiliated Xinhua Hospital of Dalian University, Dalian, Liaoning Province, China
| | - Wang Wei
- Department of Rehabilitation Medicine, Affiliated Zhongshan Hospital of Dalian University, Dalian, Liaoning Province, China
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Sun YY, Wang Z, Zhou HY, Huang HC. Sleep-Wake Disorders in Alzheimer's Disease: A Review. ACS Chem Neurosci 2022; 13:1467-1478. [PMID: 35507669 DOI: 10.1021/acschemneuro.2c00097] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Alzheimer's disease (AD) is a multifactorial disease, and it has become a serious health problem in the world. Senile plaques (SPs) and neurofibrillary tangles (NFTs) are two main pathological characters of AD. SP mainly consists of aggregated β-amyloid (Aβ), and NFT is formed by hyperphosphorylated tau protein. Sleep-wake disorders are prevalent in AD patients; however, the links and mechanisms of sleep-wake disorders on the AD pathogenesis remain to be investigated. Here, we referred to the sleep-wake disorders and reviewed some evidence to demonstrate the relationship between sleep-wake disorders and the pathogenesis of AD. On one hand, the sleep-wake disorders may lead to the increase of Aβ production and the decrease of Aβ clearance, the spreading of tau pathology, as well as oxidative stress and inflammation. On the other hand, the ApoE4 allele, a risk gene for AD, was reported to participate in sleep-wake disorders. Furthermore, some neurotransmitters, such as acetylcholine, glutamate, serotonin, melatonin, and orexins, and their receptors were suggested to be involved in AD development and sleep-wake disorders. We discussed and suggested some possible therapeutic strategies for AD treatment based on the view of sleep regulation. In general, this review explored different views to find novel targets of diagnosis and therapy for AD.
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Affiliation(s)
- Yu-Ying Sun
- Beijing Key Laboratory of Bioactive Substances and Functional Foods, Beijing Union University, , Beijing 100191, China
- Research Institute of Functional Factors and Brain Science, Beijing Union University, Beijing 100023, China
| | - Zhun Wang
- Beijing Key Laboratory of Bioactive Substances and Functional Foods, Beijing Union University, , Beijing 100191, China
- Research Institute of Functional Factors and Brain Science, Beijing Union University, Beijing 100023, China
| | - He-Yan Zhou
- Beijing Key Laboratory of Bioactive Substances and Functional Foods, Beijing Union University, , Beijing 100191, China
- Research Institute of Functional Factors and Brain Science, Beijing Union University, Beijing 100023, China
| | - Han-Chang Huang
- Beijing Key Laboratory of Bioactive Substances and Functional Foods, Beijing Union University, , Beijing 100191, China
- Research Institute of Functional Factors and Brain Science, Beijing Union University, Beijing 100023, China
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6
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Posadas Y, López-Guerrero VE, Segovia J, Perez-Cruz C, Quintanar L. Dissecting the copper bioinorganic chemistry of the functional and pathological roles of the prion protein: Relevance in Alzheimer's disease and cancer. Curr Opin Chem Biol 2021; 66:102098. [PMID: 34768088 DOI: 10.1016/j.cbpa.2021.102098] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 10/05/2021] [Accepted: 10/06/2021] [Indexed: 01/11/2023]
Abstract
The cellular prion protein (PrPC) is a metal-binding biomolecule that can interact with different protein partners involved in pivotal physiological processes, such as neurogenesis and neuronal plasticity. Recent studies profile copper and PrPC as important players in the pathological mechanisms of Alzheimer's disease and cancer. Although the copper-PrPC interaction has been characterized extensively, the role of the metal ion in the physiological and pathological roles of PrPC has been barely explored. In this article, we discuss how copper binding and proteolytic processing may impact the ability of PrPC to recruit protein partners for its functional roles. The importance to dissect the role of copper-PrPC interactions in health and disease is also underscored.
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Affiliation(s)
- Yanahi Posadas
- Department of Chemistry, Center for Research and Advanced Studies (Cinvestav), Mexico City, 07350, Mexico; Department of Pharmacology, Center for Research and Advanced Studies (Cinvestav), Mexico City, 07350, Mexico
| | - Victor E López-Guerrero
- Department of Chemistry, Center for Research and Advanced Studies (Cinvestav), Mexico City, 07350, Mexico; Department of Physiology, Biophysics and Neurosciences, Center for Research and Advanced Studies (Cinvestav), Mexico City, 07350, Mexico
| | - José Segovia
- Department of Physiology, Biophysics and Neurosciences, Center for Research and Advanced Studies (Cinvestav), Mexico City, 07350, Mexico
| | - Claudia Perez-Cruz
- Department of Pharmacology, Center for Research and Advanced Studies (Cinvestav), Mexico City, 07350, Mexico
| | - Liliana Quintanar
- Department of Chemistry, Center for Research and Advanced Studies (Cinvestav), Mexico City, 07350, Mexico.
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Drulis-Fajdasz D, Gostomska-Pampuch K, Duda P, Wiśniewski JR, Rakus D. Quantitative Proteomics Reveals Significant Differences between Mouse Brain Formations in Expression of Proteins Involved in Neuronal Plasticity during Aging. Cells 2021; 10:2021. [PMID: 34440790 PMCID: PMC8393337 DOI: 10.3390/cells10082021] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 07/30/2021] [Accepted: 08/05/2021] [Indexed: 12/22/2022] Open
Abstract
Aging is associated with a general decline in cognitive functions, which appears to be due to alterations in the amounts of proteins involved in the regulation of synaptic plasticity. Here, we present a quantitative analysis of proteins involved in neurotransmission in three brain regions, namely, the hippocampus, the cerebral cortex and the cerebellum, in mice aged 1 and 22 months, using the total protein approach technique. We demonstrate that although the titer of some proteins involved in neurotransmission and synaptic plasticity is affected by aging in a similar manner in all the studied brain formations, in fact, each of the formations represents its own mode of aging. Generally, the hippocampal and cortical proteomes are much more unstable during the lifetime than the cerebellar proteome. The data presented here provide a general picture of the effect of physiological aging on synaptic plasticity and might suggest potential drug targets for anti-aging therapies.
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Affiliation(s)
- Dominika Drulis-Fajdasz
- Department of Molecular Physiology and Neurobiology, University of Wrocław, Sienkiewicza 21, 50-335 Wrocław, Poland; (D.D.-F.); (P.D.)
| | - Kinga Gostomska-Pampuch
- Biochemical Proteomics Group, Department of Proteomics and Signal Transduction, Max Planck Institute of Biochemistry, 82152 Martinsried, Germany; (K.G.-P.); (J.R.W.)
- Department of Biochemistry and Immunochemistry, Wrocław Medical University, Chałubińskiego 10, 50-368 Wrocław, Poland
| | - Przemysław Duda
- Department of Molecular Physiology and Neurobiology, University of Wrocław, Sienkiewicza 21, 50-335 Wrocław, Poland; (D.D.-F.); (P.D.)
| | - Jacek Roman Wiśniewski
- Biochemical Proteomics Group, Department of Proteomics and Signal Transduction, Max Planck Institute of Biochemistry, 82152 Martinsried, Germany; (K.G.-P.); (J.R.W.)
| | - Dariusz Rakus
- Department of Molecular Physiology and Neurobiology, University of Wrocław, Sienkiewicza 21, 50-335 Wrocław, Poland; (D.D.-F.); (P.D.)
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da Luz MHM, Pino JMV, Santos TG, Antunes HKM, Martins VR, de Souza AAL, Torquato RJS, Lee KS. Sleep deprivation regulates availability of PrP C and Aβ peptides which can impair interaction between PrP C and laminin and neuronal plasticity. J Neurochem 2020; 153:377-389. [PMID: 31950499 PMCID: PMC7383904 DOI: 10.1111/jnc.14960] [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: 09/09/2019] [Revised: 12/17/2019] [Accepted: 01/07/2020] [Indexed: 11/30/2022]
Abstract
PrPC is a glycoprotein capable to interact with several molecules and mediates diverse signaling pathways. Among numerous ligands, laminin (LN) is known to promote neurite outgrowth and memory consolidation, while amyloid‐beta oligomers (Aβo) trigger synaptic dysfunction. In both pathways, mGluR1 is recruited as co‐receptor. The involvement of PrPC/mGluR1 in these opposite functions suggests that this complex is a key element in the regulation of synaptic activity. Considering that sleep‐wake cycle is important for synaptic homeostasis, we aimed to investigate how sleep deprivation affects the expression of PrPC and its ligands, laminin, Aβo, and mGluR1, a multicomplex that can interfere with neuronal plasticity. To address this question, hippocampi of control (CT) and sleep deprived (SD) C57BL/6 mice were collected at two time points of circadian period (13 hr and 21 hr). We observed that sleep deprivation reduced PrPC and mGluR1 levels with higher effect in active state (21 hr). Sleep deprivation also caused accumulation of Aβ peptides in rest period (13 hr), while laminin levels were not affected. In vitro binding assay showed that Aβo can compete with LN for PrPC binding. The influence of Aβo was also observed in neuritogenesis. LN alone promoted longer neurite outgrowth than non‐treated cells in both Prnp+/+ and Prnp0/0 genotypes. Aβo alone did not show any effects, but when added together with LN, it attenuated the effects of LN only in Prnp+/+ cells. Altogether, our findings indicate that sleep deprivation regulates the availability of PrPC and Aβ peptides, and based on our in vitro assays, these alterations induced by sleep deprivation can negatively affect LN–PrPC interaction, which is known to play roles in neuronal plasticity. ![]()
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Affiliation(s)
- Marcio H M da Luz
- Department of Biochemistry, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Jessica M V Pino
- Department of Biochemistry, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Tiago G Santos
- International Research Center. A.C.Camargo Cancer Center, São Paulo, Brazil
| | - Hanna K M Antunes
- Department of Psychobiology, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Vilma R Martins
- International Research Center. A.C.Camargo Cancer Center, São Paulo, Brazil
| | - Altay A L de Souza
- Department of Psychobiology, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Ricardo J S Torquato
- Department of Biochemistry, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Kil S Lee
- Department of Biochemistry, Universidade Federal de São Paulo, São Paulo, Brazil
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