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D’Alessio A. Unraveling the Cave: A Seventy-Year Journey into the Caveolar Network, Cellular Signaling, and Human Disease. Cells 2023; 12:2680. [PMID: 38067108 PMCID: PMC10705299 DOI: 10.3390/cells12232680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 11/16/2023] [Accepted: 11/20/2023] [Indexed: 12/18/2023] Open
Abstract
In the mid-1950s, a groundbreaking discovery revealed the fascinating presence of caveolae, referred to as flask-shaped invaginations of the plasma membrane, sparking renewed excitement in the field of cell biology. Caveolae are small, flask-shaped invaginations in the cell membrane that play crucial roles in diverse cellular processes, including endocytosis, lipid homeostasis, and signal transduction. The structural stability and functionality of these specialized membrane microdomains are attributed to the coordinated activity of scaffolding proteins, including caveolins and cavins. While caveolae and caveolins have been long appreciated for their integral roles in cellular physiology, the accumulating scientific evidence throughout the years reaffirms their association with a broad spectrum of human disorders. This review article aims to offer a thorough account of the historical advancements in caveolae research, spanning from their initial discovery to the recognition of caveolin family proteins and their intricate contributions to cellular functions. Furthermore, it will examine the consequences of a dysfunctional caveolar network in the development of human diseases.
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Affiliation(s)
- Alessio D’Alessio
- Sezione di Istologia ed Embriologia, Dipartimento di Scienze della Vita e Sanità Pubblica, Università Cattolica del Sacro Cuore, 00168 Roma, Italy;
- Fondazione Policlinico Universitario “Agostino Gemelli”, IRCCS, 00168 Rome, Italy
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do Amaral L, Dos Santos NAG, Sisti FM, Del Bel E, Dos Santos AC. Doxycycline inhibits dopaminergic neurodegeneration through upregulation of axonal and synaptic proteins. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2023; 396:1787-1796. [PMID: 36843128 DOI: 10.1007/s00210-023-02435-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 02/18/2023] [Indexed: 02/28/2023]
Abstract
Doxycycline (DOX) is a widely used antibiotic that is able to cross the blood-brain barrier. Several studies have shown its neuroprotective effect against neurodegeneration and have associated it with antioxidant, anti-apoptotic, and anti-inflammatory mechanisms. We have recently demonstrated that DOX mimics nerve growth factor (NGF) signaling in PC12 cells. However, the involvement of this mechanism in the neuroprotective effect of DOX is unknown. Axonal degeneration and synaptic loss are key events at the early stages of neurodegeneration, and precede the neuronal death in neurodegenerative diseases, including Parkinson's disease (PD). Therefore, the regeneration of the axonal and synaptic network might be beneficial in PD. The effect of DOX in PC12 cells treated with the Parkinsonian neurotoxin 1-methyl-4-phenylpyridinium (MPP+) was addressed. Doxycycline reduced the inhibition of neuritogenesis induced by MPP+, even in cells deprived of NGF. The mechanism involved the upregulation of GAP-43, synapsin I, β-III-tubulin, F-actin, and neurofilament-200, proteins that are associated with axonal and synaptic plasticity. Considering the role of axonal degeneration and synaptic loss at the initial stages of PD, the recent advances in early diagnosis of neurodegeneration, and the advantages of drug repurposing, doxycycline is a promising candidate to treat PD.
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Affiliation(s)
- Lilian do Amaral
- Department of Clinical, Toxicological and Bromatological Analysis, School of Pharmaceutical Sciences of Ribeirão Preto, Av Do Café S/N, University of São Paulo, Ribeirão Preto, SP, 14040-903, Brazil
| | - Neife Aparecida Guinaim Dos Santos
- Department of Clinical, Toxicological and Bromatological Analysis, School of Pharmaceutical Sciences of Ribeirão Preto, Av Do Café S/N, University of São Paulo, Ribeirão Preto, SP, 14040-903, Brazil
| | - Flávia Malvestio Sisti
- Department of Clinical, Toxicological and Bromatological Analysis, School of Pharmaceutical Sciences of Ribeirão Preto, Av Do Café S/N, University of São Paulo, Ribeirão Preto, SP, 14040-903, Brazil
| | - Elaine Del Bel
- Department of Basic and Oral Biology, Faculty of Dentistry of Ribeirão Preto, USP, Av Do Café S/N, 14040-904, Ribeirão Preto, SP, Brazil
| | - Antônio Cardozo Dos Santos
- Department of Clinical, Toxicological and Bromatological Analysis, School of Pharmaceutical Sciences of Ribeirão Preto, Av Do Café S/N, University of São Paulo, Ribeirão Preto, SP, 14040-903, Brazil.
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Isik FI, Katzeff JS, Fu Y, Kim WS. Understanding the Role of CDH4 in Multiple System Atrophy Brain. JOURNAL OF PARKINSON'S DISEASE 2023; 13:1303-1311. [PMID: 38143373 PMCID: PMC10741323 DOI: 10.3233/jpd-230298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 11/11/2023] [Indexed: 12/26/2023]
Abstract
BACKGROUND Multiple system atrophy (MSA) is a rapidly progressive neurodegenerative disease clinically characterized by parkinsonism, cerebellar ataxia, and autonomic dysfunction. A major pathological feature of MSA is the presence of α-synuclein aggregates in oligodendrocytes, the myelinating cells of the central nervous system. A genome-wide association study revealed that the CDH4 gene is associated with MSA. However, virtually nothing is known about the role of CDH4 in the context of MSA. OBJECTIVE Our aim was to compare the expression of CDH4 between MSA and control brains, and to investigate its relationship with α-synuclein in oligodendrocytes. METHODS RNA and protein were prepared from putamen, motor cortex white matter, cerebellum, and superior occipital cortex tissues collected from MSA (N = 11) and control (N = 13) brains. The expression of CDH4 was measured at mRNA and protein levels by qPCR and western blotting. Oligodendrocyte cells were cultured on plates and transfected with CDH4 cDNA and its impact on α-synuclein was analyzed. RESULTS Firstly, we found that CDH4 in MSA brain was significantly elevated in the disease-affected motor cortex white matter in MSA (N = 11) compared to controls (N = 13) and unaltered in the disease-unaffected superior occipital cortex. Secondly, we determined that increases in CDH4 expression caused changes in the cellular levels of α-synuclein in oligodendrocytes. CONCLUSIONS When put together, these results provide evidence that support the GWAS association of CDH4 with MSA.
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Affiliation(s)
- Finula I. Isik
- Brain and Mind Centre & School of Medical Sciences, The University of Sydney, Sydney NSW, Australia
| | - Jared S. Katzeff
- Brain and Mind Centre & School of Medical Sciences, The University of Sydney, Sydney NSW, Australia
| | - YuHong Fu
- Brain and Mind Centre & School of Medical Sciences, The University of Sydney, Sydney NSW, Australia
| | - Woojin Scott Kim
- Brain and Mind Centre & School of Medical Sciences, The University of Sydney, Sydney NSW, Australia
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Yang W, Geng C, Yang Z, Xu B, Shi W, Yang Y, Tian Y. Deciphering the roles of caveolin in neurodegenerative diseases: The good, the bad and the importance of context. Ageing Res Rev 2020; 62:101116. [PMID: 32554058 DOI: 10.1016/j.arr.2020.101116] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2020] [Revised: 06/05/2020] [Accepted: 06/11/2020] [Indexed: 12/13/2022]
Abstract
Neurodegenerative diseases (NDDs), which contribute to progressive and irreversible impairments of both the structure and function of the nervous system, pose a substantial socioeconomic burden on society. Mitochondrial dysfunction, oxidative stress, membrane damage, DNA damage, and abnormal protein degradation pathways play pivotal roles in the etiology of NDDs. Recently, growing evidence has demonstrated that caveolins are important in the pathology of NDDs due to their cellular functions in signal transduction, endocytosis, transcytosis, cholesterol transport, and lipid homeostasis. Given the significance of caveolins, here we review the literature to clarify their molecular mechanisms and roles in NDDs. We first briefly introduce the general background on caveolins. Next, we focus on the various important functions of caveolins in the brain. Finally, we emphasize recent progress regarding caveolins, especially Cav-1, which exert both benefit and unfavorable effects in NDDs such as AD and PD. Collectively, the data presented here should advance the investigation of caveolins for the future development of innovative strategies for the treatment of NDDs.
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Affiliation(s)
- Wenwen Yang
- Department of Medical Research Center, Xi'an No. 3 Hospital, The Affiliated Hospital of Northwest University, 10 Fengcheng Three Road, Xi'an 710021, China; Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education. Life of Sciences, Northwest University, 229 Taibai North Road, Xi'an, 710069, China
| | - Chenhui Geng
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education. Life of Sciences, Northwest University, 229 Taibai North Road, Xi'an, 710069, China
| | - Zhi Yang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education. Life of Sciences, Northwest University, 229 Taibai North Road, Xi'an, 710069, China
| | - Baoping Xu
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education. Life of Sciences, Northwest University, 229 Taibai North Road, Xi'an, 710069, China
| | - Wenzhen Shi
- Department of Medical Research Center, Xi'an No. 3 Hospital, The Affiliated Hospital of Northwest University, 10 Fengcheng Three Road, Xi'an 710021, China
| | - Yang Yang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education. Life of Sciences, Northwest University, 229 Taibai North Road, Xi'an, 710069, China.
| | - Ye Tian
- Department of Medical Research Center, Xi'an No. 3 Hospital, The Affiliated Hospital of Northwest University, 10 Fengcheng Three Road, Xi'an 710021, China.
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Alessenko AV, Albi E. Exploring Sphingolipid Implications in Neurodegeneration. Front Neurol 2020; 11:437. [PMID: 32528400 PMCID: PMC7254877 DOI: 10.3389/fneur.2020.00437] [Citation(s) in RCA: 79] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Accepted: 04/24/2020] [Indexed: 12/14/2022] Open
Abstract
Over the past decade, it was found that relatively simple sphingolipids, such as ceramide, sphingosine, sphingosine-1-phosphate, and glucosylceramide play important roles in neuronal functions by regulating rates of neuronal growth and differentiation. Homeostasis of membrane sphingolipids in neurons and myelin is essential to prevent the loss of synaptic plasticity, cell death and neurodegeneration. In our review we summarize data about significant brain cell alterations of sphingolipids in different neurodegenerative diseases such as Alzheimer's disease, Parkinson disease, Amyotrophic Lateral Sclerosis, Gaucher's, Farber's diseases, etc. We reported results obtained in brain tissue from both animals in which diseases were induced and humans in autopsy samples. Moreover, attention was paid on sphingolipids in biofluids, liquor and blood, from patients. In Alzheimer's disease sphingolipids are involved in the processing and aggregation of β-amyloid and in the transmission of the cytotoxic signal β-amyloid and TNFα-induced. Recently, the gangliosides metabolism in transgenic animals and the relationship between blood sphingolipids changes and cognitive impairment in Alzheimer's disease patients have been intensively studied. Numerous experiments have highlighted the involvement of ceramide and monohexosylceramide metabolism in the pathophysiology of the sporadic forms of Parkinson's disease. Moreover, gene mutations of the glucocerebrosidase enzyme were considered as responsible for Parkinson's disease via transition of the monomeric form of α-synuclein to an oligomeric, aggregated toxic form. Disturbances in the metabolism of ceramides were also associated with the appearance of Lewy's bodies. Changes in sphingolipid metabolism were found as a manifestation of Amyotrophic Lateral Sclerosis, both sporadic and family forms, and affected the rate of disease development. Currently, fingolimod (FTY720), a sphingosine-1-phosphate receptor modulator, is the only drug undergoing clinical trials of phase II safety for the treatment of Amyotrophic Lateral Sclerosis. The use of sphingolipids as new diagnostic markers and as targets for innovative therapeutic strategies in different neurodegenerative disorders has been included.
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Affiliation(s)
- Alice V Alessenko
- Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, Moscow, Russia
| | - Elisabetta Albi
- Department of Pharmaceutical Science, University of Perugia, Perugia, Italy
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Acid and Neutral Sphingomyelinase Behavior in Radiation-Induced Liver Pyroptosis and in the Protective/Preventive Role of rMnSOD. Int J Mol Sci 2020; 21:ijms21093281. [PMID: 32384654 PMCID: PMC7247354 DOI: 10.3390/ijms21093281] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 05/02/2020] [Accepted: 05/04/2020] [Indexed: 02/08/2023] Open
Abstract
Sphingomyelins (SMs) are a class of relevant bioactive molecules that act as key modulators of different cellular processes, such as growth arrest, exosome formation, and the inflammatory response influenced by many environmental conditions, leading to pyroptosis, a form of programmed cell death due to Caspase-1 involvement. To study liver pyroptosis and hepatic SM metabolism via both lysosomal acid SMase (aSMase) and endoplasmic reticulum/nucleus neutral SMase (nSMase) during the exposure of mice to radiation and to ascertain if this process can be modulated by protective molecules, we used an experimental design (previously used by us) to evaluate the effects of both ionizing radiation and a specific protective molecule (rMnSOD) in the brain in collaboration with the Joint Institute for Nuclear Research, Dubna (Russia). As shown by the Caspase-1 immunostaining of the liver sections, the radiation resulted in the loss of the normal cell structure alongside a progressive and dose-dependent increase of the labelling, treatment, and pretreatment with rMnSOD, which had a significant protective effect on the livers. SM metabolic analyses, performed on aSMase and nSMase gene expression, as well as protein content and activity, proved that rMnSOD was able to significantly reduce radiation-induced damage by playing both a protective role via aSMase and a preventive role via nSMase.
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Cataldi S, Borrelli A, Ceccarini MR, Nakashidze I, Codini M, Belov O, Ivanov A, Krasavin E, Ferri I, Conte C, Patria FF, Traina G, Beccari T, Mancini A, Curcio F, Ambesi-Impiombato FS, Albi E. Neutral Sphingomyelinase Modulation in the Protective/Preventive Role of rMnSOD from Radiation-Induced Damage in the Brain. Int J Mol Sci 2019; 20:ijms20215431. [PMID: 31683613 PMCID: PMC6862120 DOI: 10.3390/ijms20215431] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Revised: 10/29/2019] [Accepted: 10/29/2019] [Indexed: 01/06/2023] Open
Abstract
Studies on the relationship between reactive oxygen species (ROS)/manganese superoxide dismutase (MnSOD) and sphingomyelinase (SMase) are controversial. It has been demonstrated that SMase increases the intracellular ROS level and induces gene expression for MnSOD protein. On the other hand, some authors showed that ROS modulate the activation of SMase. The human recombinant manganese superoxide dismutase (rMnSOD) exerting a radioprotective effect on normal cells, qualifies as a possible pharmaceutical tool to prevent and/or cure damages derived from accidental exposure to ionizing radiation. This study aimed to identify neutral SMase (nSMase) as novel molecule connecting rMnSOD to its radiation protective effects. We used a new, and to this date, unique, experimental model to assess the effect of both radiation and rMnSOD in the brain of mice, within a collaborative project among Italian research groups and the Joint Institute for Nuclear Research, Dubna (Russia). Mice were exposed to a set of minor γ radiation and neutrons and a spectrum of neutrons, simulating the radiation levels to which cosmonauts will be exposed during deep-space, long-term missions. Groups of mice were treated or not-treated (controls) with daily subcutaneous injections of rMnSOD during a period of 10 days. An additional group of mice was also pretreated with rMnSOD for three days before irradiation, as a model for preventive measures. We demonstrate that rMnSOD significantly protects the midbrain cells from radiation-induced damage, inducing a strong upregulation of nSMase gene and protein expression. Pretreatment with rMnSOD before irradiation protects the brain with a value of very high nSMase activity, indicating that high levels of activity might be sufficient to exert the rMnSOD preventive role. In conclusion, the protective effect of rMnSOD from radiation-induced brain damage may require nSMase enzyme.
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Affiliation(s)
- Samuela Cataldi
- Department of Pharmaceutical Sciences, University of Perugia, 06126 Perugia, Italy.
| | - Antonella Borrelli
- Molecular Biology and Viral Oncology Unit, Istituto Nazionale Tumori IRCCS "Fondazione G. Pascale", 80131 Napoli, Italy.
| | | | - Irina Nakashidze
- Department of Pharmaceutical Sciences, University of Perugia, 06126 Perugia, Italy.
| | - Michela Codini
- Department of Pharmaceutical Sciences, University of Perugia, 06126 Perugia, Italy.
| | - Oleg Belov
- Laboratory of Radiation Biology, Joint Institute for Nuclear Research, 141980 Dubna, Russia.
| | - Alexander Ivanov
- Laboratory of Radiation Biology, Joint Institute for Nuclear Research, 141980 Dubna, Russia.
| | - Eugene Krasavin
- Laboratory of Radiation Biology, Joint Institute for Nuclear Research, 141980 Dubna, Russia.
| | - Ivana Ferri
- Division of Pathological Anatomy and Histology, Department of Experimental Medicine, School of Medicine and Surgery, University of Perugia, 06126 Perugia, Italy.
| | - Carmela Conte
- Department of Pharmaceutical Sciences, University of Perugia, 06126 Perugia, Italy.
| | | | - Giovanna Traina
- Department of Pharmaceutical Sciences, University of Perugia, 06126 Perugia, Italy.
| | - Tommaso Beccari
- Department of Pharmaceutical Sciences, University of Perugia, 06126 Perugia, Italy.
| | - Aldo Mancini
- Laedhexa Biotechnologies Inc., San Francisco, CA QB3@953, USA.
| | - Francesco Curcio
- Dipartimento di Area Medica, University of Udine, 33100 Udine, Italy.
| | | | - Elisabetta Albi
- Department of Pharmaceutical Sciences, University of Perugia, 06126 Perugia, Italy.
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Albi E, Cataldi S, Codini M, Mariucci G, Lazzarini A, Ceccarini MR, Ferri I, Laurenti ME, Arcuri C, Patria F, Beccari T, Conte C. Neutral sphingomyelinase increases and delocalizes in the absence of Toll-Like Receptor 4: A new insight for MPTP neurotoxicity. Prostaglandins Other Lipid Mediat 2019; 142:46-52. [PMID: 30928412 DOI: 10.1016/j.prostaglandins.2019.03.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Revised: 02/15/2019] [Accepted: 03/25/2019] [Indexed: 02/06/2023]
Abstract
Both sphingomyelinase and Toll-Like Receptor 4 (TLR4) are implicated in neurodegenerative diseases. However, the relationship between the two molecules remains unclear. In this study, using WT and TLR4-deficient mice, treated or not with 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP), we aimed to investigate the relation between TLR4 and neutral sphingomyelinase (nSMase) in the midbrain. We found that the lack of TLR4 caused increase in nSMase protein expression and enzyme activity in the midbrain, as well as a marked delocalization from the cell membranes. This provoked a decrease in sphingomyelin (SM) species and an increase in ceramide levels. We found that exposure of TLR4-deficient mice to MPTP reduces unsaturated SM species by increasing saturated/unsaturated SM ratio. Saturated fatty acid make SM more rigid and could contribute to reducing neural plasticity. In this study we showed that the absence of TLR4 also induced reduction of both heavy neurofilaments and glial fibrillary acidic protein (GFAP) and mice exhibited higher sensitivity to MPTP administration. We speculated about the possible association between nSMase-TLR4 complex and MPTP midbrain damage. Taken together, our findings provide for the first time indications about the role of TLR4 in change of SM metabolism in MPTP neurotoxicity.
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Affiliation(s)
- Elisabetta Albi
- Department of Pharmaceutical Science, University of Perugia, Italy
| | - Samuela Cataldi
- Department of Pharmaceutical Science, University of Perugia, Italy
| | - Michela Codini
- Department of Pharmaceutical Science, University of Perugia, Italy
| | | | - Andrea Lazzarini
- Research Centre of Biochemical Specialist Analyses, CRABiON, 06122 Perugia, Italy
| | | | - Ivana Ferri
- Institute of Pathologic Anatomy and Histology, University of Perugia, Italy
| | | | - Cataldo Arcuri
- Department of Experimental Medicine, University of Perugia, Perugia, Italy
| | - Federica Patria
- Department of Pharmaceutical Science, University of Perugia, Italy
| | - Tommaso Beccari
- Department of Pharmaceutical Science, University of Perugia, Italy
| | - Carmela Conte
- Department of Pharmaceutical Science, University of Perugia, Italy.
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Cataldi S, Arcuri C, Hunot S, Mecca C, Codini M, Laurenti ME, Ferri I, Loreti E, Garcia-Gil M, Traina G, Conte C, Ambesi-Impiombato FS, Beccari T, Curcio F, Albi E. Effect of Vitamin D in HN9.10e Embryonic Hippocampal Cells and in Hippocampus from MPTP-Induced Parkinson's Disease Mouse Model. Front Cell Neurosci 2018; 12:31. [PMID: 29467625 PMCID: PMC5808335 DOI: 10.3389/fncel.2018.00031] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Accepted: 01/24/2018] [Indexed: 12/14/2022] Open
Abstract
It has long been proven that neurogenesis continues in the adult brains of mammals in the dentatus gyrus of the hippocampus due to the presence of neural stem cells. Although a large number of studies have been carried out to highlight the localization of vitamin D receptor in hippocampus, the expression of vitamin D receptor in neurogenic dentatus gyrus of hippocampus in Parkinson's disease (PD) and the molecular mechanisms triggered by vitamin D underlying the production of differentiated neurons from embryonic cells remain unknown. Thus, we performed a preclinical in vivo study by inducing PD in mice with MPTP and showed a reduction of glial fibrillary acidic protein (GFAP) and vitamin D receptor in the dentatus gyrus of hippocampus. Then, we performed an in vitro study by inducing embryonic hippocampal cell differentiation with vitamin D. Interestingly, vitamin D stimulates the expression of its receptor. Vitamin D receptor is a transcription factor that probably is responsible for the upregulation of microtubule associated protein 2 and neurofilament heavy polypeptide genes. The latter increases heavy neurofilament protein expression, essential for neurofilament growth. Notably N-cadherin, implicated in activity for dendritic outgrowth, is upregulated by vitamin D.
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Affiliation(s)
- Samuela Cataldi
- Department of Pharmaceutical Sciences, University of Perugia, Perugia, Italy
| | - Cataldo Arcuri
- Department of Experimental Medicine, University of Perugia, Perugia, Italy
| | - Stéphane Hunot
- Institut du Cerveau et de la Moelleépinière, Inserm U 1127, CNRS UMR 7225, UPMC Univ Paris 06, UMR S 1127, Sorbonne Universités, Paris, France
| | - Carmen Mecca
- Department of Experimental Medicine, University of Perugia, Perugia, Italy
| | - Michela Codini
- Department of Pharmaceutical Sciences, University of Perugia, Perugia, Italy
| | - Maria E. Laurenti
- Division of Anatomic Pathology and Histology, Department of Experimental Medicine, School of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Ivana Ferri
- Division of Anatomic Pathology and Histology, Department of Experimental Medicine, School of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Elisabetta Loreti
- Division of Anatomic Pathology and Histology, Department of Experimental Medicine, School of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Mercedes Garcia-Gil
- Department of Biology, University of Pisa, Pisa, Italy
- Interdepartmental Research Center Nutrafood, Nutraceuticals and Food for Health, University of Pisa, Pisa, Italy
| | - Giovanna Traina
- Department of Pharmaceutical Sciences, University of Perugia, Perugia, Italy
| | - Carmela Conte
- Department of Pharmaceutical Sciences, University of Perugia, Perugia, Italy
| | | | - Tommaso Beccari
- Department of Pharmaceutical Sciences, University of Perugia, Perugia, Italy
| | | | - Elisabetta Albi
- Department of Pharmaceutical Sciences, University of Perugia, Perugia, Italy
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Neutral Sphingomyelinase Behaviour in Hippocampus Neuroinflammation of MPTP-Induced Mouse Model of Parkinson's Disease and in Embryonic Hippocampal Cells. Mediators Inflamm 2017; 2017:2470950. [PMID: 29343884 PMCID: PMC5733979 DOI: 10.1155/2017/2470950] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Revised: 09/16/2017] [Accepted: 09/26/2017] [Indexed: 01/31/2023] Open
Abstract
Neutral sphingomyelinase is known to be implicated in growth arrest, differentiation, proliferation, and apoptosis. Although previous studies have reported the involvement of neutral sphingomyelinase in hippocampus physiopathology, its behavior in the hippocampus during Parkinson's disease remains undetected. In this study, we show an upregulation of inducible nitric oxide synthase and a downregulation of neutral sphingomyelinase in the hippocampus of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine- (MPTP-) induced mouse model of Parkinson's disease. Moreover, the stimulation of neutral sphingomyelinase activity with vitamin 1,25-dihydroxyvitamin D3 reduces specifically saturated fatty acid sphingomyelin by making sphingomyelin a less rigid molecule that might influence neurite plasticity. The possible biological relevance of the increase of neutral sphingomyelinase in Parkinson's disease is discussed.
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