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Sapienza S, Tedeschi V, Apicella B, Pannaccione A, Russo C, Sisalli MJ, Magliocca G, Loffredo S, Secondo A. Ultrafine particulate matter pollution and dysfunction of endoplasmic reticulum Ca 2+ store: A pathomechanism shared with amyotrophic lateral sclerosis motor neurons? Ecotoxicol Environ Saf 2024; 273:116104. [PMID: 38377779 DOI: 10.1016/j.ecoenv.2024.116104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 01/29/2024] [Accepted: 02/09/2024] [Indexed: 02/22/2024]
Abstract
Increased risk of neurodegenerative diseases has been envisaged for air pollution exposure. On the other hand, environmental risk factors, including air pollution, have been suggested for Amyotrophic Lateral Sclerosis (ALS) pathomechanism. Therefore, the neurotoxicity of ultrafine particulate matter (PM0.1) (PM < 0.1 μm size) and its sub-20 nm nanoparticle fraction (NP20) has been investigated in motor neuronal-like cells and primary cortical neurons, mainly affected in ALS. The present data showed that PM0.1 and NP20 exposure induced endoplasmic reticulum (ER) stress, as occurred in cortex and spinal cord of ALS mice carrying G93A mutation in SOD1 gene. Furthermore, NSC-34 motor neuronal-like cells exposed to PM0.1 and NP20 shared the same proteomic profile on some apoptotic factors with motor neurons treated with the L-BMAA, a neurotoxin inducing Amyotrophic Lateral Sclerosis/Parkinson-Dementia Complex (ALS/PDC). Of note ER stress induced by PM0.1 and NP20 in motor neurons was associated to pathological changes in ER morphology and dramatic reduction of organellar Ca2+ level through the dysregulation of the Ca2+-pumps SERCA2 and SERCA3, the Ca2+-sensor STIM1, and the Ca2+-release channels RyR3 and IP3R3. Furthermore, the mechanism deputed to ER Ca2+ refilling (e.g. the so called store operated calcium entry-SOCE) and the relative currents ICRAC were also altered by PM0.1 and NP20 exposure. Additionally, these carbonaceous particles caused the exacerbation of L-BMAA-induced ER stress and Caspase-9 activation. In conclusion, this study shows that PM0.1 and NP20 induced the aberrant expression of ER proteins leading to dysmorphic ER, organellar Ca2+ dysfunction, ER stress and neurotoxicity, providing putative correlations with the neurodegenerative process occurring in ALS.
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Affiliation(s)
- Silvia Sapienza
- Department of Neuroscience, Reproductive and Odontostomatological Sciences, University of Naples Federico II, Naples 80131, Italy
| | - Valentina Tedeschi
- Department of Neuroscience, Reproductive and Odontostomatological Sciences, University of Naples Federico II, Naples 80131, Italy
| | - Barbara Apicella
- Istituto di Scienze e Tecnologie per l'Energia e la Mobilità Sostenibili (STEMS)-CNR, Naples 80125, Italy
| | - Anna Pannaccione
- Department of Neuroscience, Reproductive and Odontostomatological Sciences, University of Naples Federico II, Naples 80131, Italy
| | - Carmela Russo
- Istituto di Scienze e Tecnologie per l'Energia e la Mobilità Sostenibili (STEMS)-CNR, Naples 80125, Italy
| | - Maria Josè Sisalli
- Department of Translational Medical Sciences, University of Naples Federico II, Naples 80131, Italy
| | - Giorgia Magliocca
- Department of Neuroscience, Reproductive and Odontostomatological Sciences, University of Naples Federico II, Naples 80131, Italy
| | - Stefania Loffredo
- Department of Translational Medical Sciences, University of Naples Federico II, Naples 80131, Italy; Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, WAO Center of Excellence, Naples 80131, Italy
| | - Agnese Secondo
- Department of Neuroscience, Reproductive and Odontostomatological Sciences, University of Naples Federico II, Naples 80131, Italy.
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Cantone AF, Burgaletto C, Di Benedetto G, Pannaccione A, Secondo A, Bellanca CM, Augello E, Munafò A, Tarro P, Bernardini R, Cantarella G. Taming Microglia in Alzheimer's Disease: Exploring Potential Implications of Choline Alphoscerate via α7 nAChR Modulation. Cells 2024; 13:309. [PMID: 38391922 PMCID: PMC10886565 DOI: 10.3390/cells13040309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 01/25/2024] [Accepted: 02/03/2024] [Indexed: 02/24/2024] Open
Abstract
Alzheimer's disease (AD), marked by cognitive impairment, predominantly affects the brain regions regulated by cholinergic innervation, such as the cerebral cortex and hippocampus. Cholinergic dysfunction, a key contributor to age-related cognitive decline, has spurred investigations into potential therapeutic interventions. We have previously shown that choline alphoscerate (α-GPC), a cholinergic neurotransmission-enhancing agent, protects from Aβ-mediated neurotoxicity. Herein, we investigated the effects of α-GPC on the microglial phenotype in response to Aβ via modulation of the nicotinic alpha-7 acetylcholine receptor (α7 nAChR). BV2 microglial cells were pre-treated for 1 h with α-GPC and were treated for 24, 48, and 72 h with Aβ1-42 and/or α-BTX, a selective α7nAchR antagonist. Fluorescent immunocytochemistry and Western blot analysis showed that α-GPC was able to antagonize Aβ-induced inflammatory effects. Of note, α-GPC exerted its anti-inflammatory effect by directly activating the α7nAChR receptor, as suggested by the induction of an increase in [Ca2+]i and Ach-like currents. Considering that cholinergic transmission appears crucial in regulating the inflammatory profiles of glial cells, its modulation emerges as a potential pharmaco-therapeutic target to improve outcomes in inflammatory neurodegenerative disorders, such as AD.
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Affiliation(s)
- Anna Flavia Cantone
- Section of Pharmacology, Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy; (A.F.C.); (C.B.); (C.M.B.); (E.A.); (A.M.); (P.T.); (R.B.); (G.C.)
| | - Chiara Burgaletto
- Section of Pharmacology, Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy; (A.F.C.); (C.B.); (C.M.B.); (E.A.); (A.M.); (P.T.); (R.B.); (G.C.)
| | - Giulia Di Benedetto
- Section of Pharmacology, Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy; (A.F.C.); (C.B.); (C.M.B.); (E.A.); (A.M.); (P.T.); (R.B.); (G.C.)
- Clinical Toxicology Unit, University Hospital of Catania, 95123 Catania, Italy
| | - Anna Pannaccione
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, University of Naples Federico II, 80131 Naples, Italy; (A.P.); (A.S.)
| | - Agnese Secondo
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, University of Naples Federico II, 80131 Naples, Italy; (A.P.); (A.S.)
| | - Carlo Maria Bellanca
- Section of Pharmacology, Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy; (A.F.C.); (C.B.); (C.M.B.); (E.A.); (A.M.); (P.T.); (R.B.); (G.C.)
- Clinical Toxicology Unit, University Hospital of Catania, 95123 Catania, Italy
| | - Egle Augello
- Section of Pharmacology, Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy; (A.F.C.); (C.B.); (C.M.B.); (E.A.); (A.M.); (P.T.); (R.B.); (G.C.)
| | - Antonio Munafò
- Section of Pharmacology, Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy; (A.F.C.); (C.B.); (C.M.B.); (E.A.); (A.M.); (P.T.); (R.B.); (G.C.)
| | - Paola Tarro
- Section of Pharmacology, Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy; (A.F.C.); (C.B.); (C.M.B.); (E.A.); (A.M.); (P.T.); (R.B.); (G.C.)
| | - Renato Bernardini
- Section of Pharmacology, Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy; (A.F.C.); (C.B.); (C.M.B.); (E.A.); (A.M.); (P.T.); (R.B.); (G.C.)
- Clinical Toxicology Unit, University Hospital of Catania, 95123 Catania, Italy
| | - Giuseppina Cantarella
- Section of Pharmacology, Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy; (A.F.C.); (C.B.); (C.M.B.); (E.A.); (A.M.); (P.T.); (R.B.); (G.C.)
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Piccialli I, Greco F, Roviello G, Sisalli MJ, Tedeschi V, di Mola A, Borbone N, Oliviero G, De Feo V, Secondo A, Massa A, Pannaccione A. The 3-(3-oxoisoindolin-1-yl)pentane-2,4-dione (ISOAC1) as a new molecule able to inhibit Amyloid β aggregation and neurotoxicity. Biomed Pharmacother 2023; 168:115745. [PMID: 37871561 DOI: 10.1016/j.biopha.2023.115745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 10/12/2023] [Accepted: 10/16/2023] [Indexed: 10/25/2023] Open
Abstract
Amyloid β 1-42 (Aβ1-42) protein aggregation is considered one of the main triggers of Alzheimer's disease (AD). In this study, we examined the in vitro anti-amyloidogenic activity of the isoindolinone derivative 3-(3-oxoisoindolin-1-yl)pentane-2,4-dione (ISOAC1) and its neuroprotective potential against the Aβ1-42 toxicity. By performing the Thioflavin T fluorescence assay, Western blotting analyses, and Circular Dichroism experiments, we found that ISOAC1 was able to reduce the Aβ1-42 aggregation and conformational transition towards β-sheet structures. Interestingly, in silico studies revealed that ISOAC1 was able to bind to both the monomer and a pentameric protofibril of Aβ1-42, establishing a hydrophobic interaction with the PHE19 residue of the Aβ1-42 KLVFF motif. In vitro analyses on primary cortical neurons showed that ISOAC1 counteracted the increase of intracellular Ca2+ levels and decreased the Aβ1-42-induced toxicity, in terms of mitochondrial activity reduction and increase of reactive oxygen species production. In addition, confocal microscopy analyses showed that ISOAC1 was able to reduce the Aβ1-42 intraneuronal accumulation. Collectively, our results clearly show that ISOAC1 exerts a neuroprotective effect by reducing the Aβ1-42 aggregation and toxicity, hence emerging as a promising compound for the development of new Aβ-targeting therapeutic strategies for AD treatment.
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Affiliation(s)
- Ilaria Piccialli
- Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, Federico II University of Naples, Naples, Italy
| | - Francesca Greco
- Department of Pharmacy, Federico II University of Naples, Naples, Italy
| | - Giovanni Roviello
- Institute of Biostructures and Bioimaging, Italian National Council for Research (IBB-CNR), Naples, Italy
| | - Maria Josè Sisalli
- Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, Federico II University of Naples, Naples, Italy
| | - Valentina Tedeschi
- Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, Federico II University of Naples, Naples, Italy
| | - Antonia di Mola
- Department of Chemistry and Biology "A. Zambelli", University of Salerno, Fisciano, SA, Italy
| | - Nicola Borbone
- Department of Pharmacy, Federico II University of Naples, Naples, Italy
| | - Giorgia Oliviero
- Department of Molecular Medicine and Medical Biotechnologies, Federico II University of Naples, Naples, Italy
| | - Vincenzo De Feo
- Department of Pharmacy, University of Salerno, Fisciano, SA, Italy
| | - Agnese Secondo
- Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, Federico II University of Naples, Naples, Italy
| | - Antonio Massa
- Department of Chemistry and Biology "A. Zambelli", University of Salerno, Fisciano, SA, Italy.
| | - Anna Pannaccione
- Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, Federico II University of Naples, Naples, Italy.
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Martin-Romero FJ, Secondo A, Gruszczynska-Biegala J. Editorial: Molecular components of store-operated calcium entry in health and disease, volume II. Front Cell Neurosci 2023; 17:1300412. [PMID: 37876915 PMCID: PMC10591446 DOI: 10.3389/fncel.2023.1300412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Accepted: 09/25/2023] [Indexed: 10/26/2023] Open
Affiliation(s)
| | - Agnese Secondo
- Department of Neuroscience, “Federico II” University of Naples, Naples, Italy
| | - Joanna Gruszczynska-Biegala
- Laboratory of Molecular Biology, Mossakowski Medical Research Institute, Polish Academy of Sciences, Warsaw, Poland
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Tedeschi V, Vinciguerra A, Sisalli MJ, Pignataro G, Secondo A. Pharmacological inhibition of lysosomal two-pore channel 2 (TPC2) confers neuroprotection in stroke via autophagy regulation. Neurobiol Dis 2023; 178:106020. [PMID: 36708960 DOI: 10.1016/j.nbd.2023.106020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 12/29/2022] [Accepted: 01/24/2023] [Indexed: 01/27/2023] Open
Abstract
Lysosomal function and organellar Ca2+ homeostasis become dysfunctional in Stroke causing disturbances in autophagy, the major process for the degradation of abnormal protein aggregates and dysfunctional organelles. However, the role of autophagy in Stroke is controversial since excessive or prolonged autophagy activation exacerbates ischemic brain injury. Of note, glutamate evokes NAADP-dependent Ca2+ release via lysosomal TPC2 channels thus controlling basal autophagy. Considering the massive release of excitotoxins in Stroke, autophagic flux becomes uncontrolled with abnormal formation of autophagosomes causing, in turn, disruption of excitotoxins clearance and neurodegeneration. Here, a fine regulation of autophagy via a proper pharmacological modulation of lysosomal TPC2 channel has been tested in preclinical Stroke models. Primary cortical neurons were subjected to oxygen and glucose deprivation+reoxygenation to reproduce in vitro brain ischemia. Focal brain ischemia was induced in rats by transient middle cerebral artery occlusion (tMCAO). Under these conditions, TPC2 protein expression as well as autophagy and endoplasmic reticulum (ER) stress markers were studied by Western blotting, while TPC2 localization and activity were measured by immunocytochemistry and single-cell video-imaging, respectively. TPC2 protein expression and immunosignal were highly modulated in primary cortical neurons exposed to extreme hypoxic conditions causing dysfunction in organellar Ca2+ homeostasis, ER stress and autophagy-induced cell death. TPC2 knocking down and pharmacological inhibition by Ned-19 during hypoxia induced neuroprotection. The effect of Ned-19 was reversed by the permeable form of TPC2 endogenous agonist, NAADP-AM. Of note, Ned-19 prevented ER stress, as measured by GRP78 (78 kDa glucose-regulated protein) protein reduction and caspase 9 downregulation. In this way Ned-19 restored organellar Ca2+ level. Interestingly, Ned-19 reduced the infarct volume and neurological deficits in rats subjected to tMCAO and prevented hypoxia-induced cell death by blocking autophagic flux. Collectively, the pharmacological inhibition of TPC2 lysosomal channel by Ned-19 protects from focal ischemia by hampering a hyperfunctional autophagy.
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Affiliation(s)
- Valentina Tedeschi
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Via Sergio Pansini 5, Naples 80131, Italy.
| | - Antonio Vinciguerra
- Department of Biomedical Sciences and Public Health, School of Medicine, University "Politecnica delle Marche", Via Tronto 10/A, Ancona 60126, Italy.
| | - Maria Josè Sisalli
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Via Sergio Pansini 5, Naples 80131, Italy.
| | - Giuseppe Pignataro
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Via Sergio Pansini 5, Naples 80131, Italy.
| | - Agnese Secondo
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Via Sergio Pansini 5, Naples 80131, Italy.
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Palestra F, Poto R, Ciardi R, Opromolla G, Secondo A, Tedeschi V, Ferrara AL, Di Crescenzo RM, Galdiero MR, Cristinziano L, Modestino L, Marone G, Fiorelli A, Varricchi G, Loffredo S. SARS-CoV-2 Spike Protein Activates Human Lung Macrophages. Int J Mol Sci 2023; 24:3036. [PMID: 36769357 PMCID: PMC9917796 DOI: 10.3390/ijms24033036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 01/30/2023] [Accepted: 02/01/2023] [Indexed: 02/09/2023] Open
Abstract
COVID-19 is a viral disease caused by SARS-CoV-2. This disease is characterized primarily, but not exclusively, by respiratory tract inflammation. SARS-CoV-2 infection relies on the binding of spike protein to ACE2 on the host cells. The virus uses the protease TMPRSS2 as an entry activator. Human lung macrophages (HLMs) are the most abundant immune cells in the lung and fulfill a variety of specialized functions mediated by the production of cytokines and chemokines. The aim of this project was to investigate the effects of spike protein on HLM activation and the expression of ACE2 and TMPRSS2 in HLMs. Spike protein induced CXCL8, IL-6, TNF-α, and IL-1β release from HLMs; promoted efficient phagocytosis; and induced dysfunction of intracellular Ca2+ concentration by increasing lysosomal Ca2+ content in HLMs. Microscopy experiments revealed that HLM tracking was affected by spike protein activation. Finally, HLMs constitutively expressed mRNAs for ACE2 and TMPRSS2. In conclusion, during SARS-CoV-2 infection, macrophages seem to play a key role in lung injury, resulting in immunological dysfunction and respiratory disease.
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Affiliation(s)
- Francesco Palestra
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy
| | - Remo Poto
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy
- World Allergy Organization (WAO) Center of Excellence (CoE), 80131 Naples, Italy
| | - Renato Ciardi
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy
| | - Giorgia Opromolla
- Translational Medical and Surgical Science, University of Campania Luigi Vanvitelli, 80131 Naples, Italy
| | - Agnese Secondo
- Department of Neuroscience, Reproductive and Odontostomatological Sciences, University of Naples Federico II, 80131 Naples, Italy
| | - Valentina Tedeschi
- Department of Neuroscience, Reproductive and Odontostomatological Sciences, University of Naples Federico II, 80131 Naples, Italy
| | - Anne Lise Ferrara
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy
- Institute of Experimental Endocrinology and Oncology (IEOS), National Research Council, 80131 Naples, Italy
| | - Rosa Maria Di Crescenzo
- Department of Neuroscience, Reproductive and Odontostomatological Sciences, University of Naples Federico II, 80131 Naples, Italy
| | - Maria Rosaria Galdiero
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy
- World Allergy Organization (WAO) Center of Excellence (CoE), 80131 Naples, Italy
- Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, 80131 Naples, Italy
| | - Leonardo Cristinziano
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy
| | - Luca Modestino
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy
| | - Gianni Marone
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy
- World Allergy Organization (WAO) Center of Excellence (CoE), 80131 Naples, Italy
- Institute of Experimental Endocrinology and Oncology (IEOS), National Research Council, 80131 Naples, Italy
- Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, 80131 Naples, Italy
| | - Alfonso Fiorelli
- Translational Medical and Surgical Science, University of Campania Luigi Vanvitelli, 80131 Naples, Italy
| | - Gilda Varricchi
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy
- World Allergy Organization (WAO) Center of Excellence (CoE), 80131 Naples, Italy
- Institute of Experimental Endocrinology and Oncology (IEOS), National Research Council, 80131 Naples, Italy
- Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, 80131 Naples, Italy
| | - Stefania Loffredo
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy
- World Allergy Organization (WAO) Center of Excellence (CoE), 80131 Naples, Italy
- Institute of Experimental Endocrinology and Oncology (IEOS), National Research Council, 80131 Naples, Italy
- Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, 80131 Naples, Italy
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Sposito S, Secondo A, Romanelli AM, Montefusco A, Nanayakkara M, Auricchio S, Barone MV, Caputo I, Paolella G. Peculiar Ca 2+ Homeostasis, ER Stress, Autophagy, and TG2 Modulation in Celiac Disease Patient-Derived Cells. Int J Mol Sci 2023; 24:ijms24021495. [PMID: 36675008 PMCID: PMC9866799 DOI: 10.3390/ijms24021495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 01/02/2023] [Accepted: 01/05/2023] [Indexed: 01/15/2023] Open
Abstract
Celiac disease (CD) is an inflammatory intestinal disease caused by the ingestion of gluten-containing cereals by genetically predisposed individuals. Constitutive differences between cells from CD patients and control subjects, including levels of protein phosphorylation, alterations of vesicular trafficking, and regulation of type 2 transglutaminase (TG2), have been reported. In the present work, we investigated how skin-derived fibroblasts from CD and control subjects responded to thapsigargin, an endoplasmic reticulum ER stress inducer, in an attempt to contribute to the comprehension of molecular features of the CD cellular phenotype. We analyzed Ca2+ levels by single-cell video-imaging and TG2 activity by a microplate assay. Western blots and PCR analyses were employed to monitor TG2 levels and markers of ER stress and autophagy. We found that the cytosolic and ER Ca2+ level of CD cells was lower than in control cells. Treatments with thapsigargin differently activated TG2 in control and CD cells, as well as caused slightly different responses regarding the activation of ER stress and the expression of autophagic markers. On the whole, our findings identified further molecular features of the celiac cellular phenotype and highlighted that CD cells appeared less capable of adapting to a stress condition and responding in a physiological way.
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Affiliation(s)
- Silvia Sposito
- Department of Chemistry and Biology, University of Salerno, 84084 Fisciano, Italy
| | - Agnese Secondo
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, University Federico II, 80138 Naples, Italy
| | | | - Antonio Montefusco
- Department of Chemistry and Biology, University of Salerno, 84084 Fisciano, Italy
| | - Merlin Nanayakkara
- Department of Translational Medical Science, University Federico II, 80138 Naples, Italy
| | - Salvatore Auricchio
- European Laboratory for the Investigation of Food-Induced Diseases (ELFID), University Federico II, 80138 Naples, Italy
| | - Maria Vittoria Barone
- Department of Translational Medical Science, University Federico II, 80138 Naples, Italy
- European Laboratory for the Investigation of Food-Induced Diseases (ELFID), University Federico II, 80138 Naples, Italy
| | - Ivana Caputo
- Department of Chemistry and Biology, University of Salerno, 84084 Fisciano, Italy
- European Laboratory for the Investigation of Food-Induced Diseases (ELFID), University Federico II, 80138 Naples, Italy
| | - Gaetana Paolella
- Department of Chemistry and Biology, University of Salerno, 84084 Fisciano, Italy
- Correspondence:
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Sapienza S, Tedeschi V, Apicella B, Palestra F, Russo C, Piccialli I, Pannaccione A, Loffredo S, Secondo A. Size-Based Effects of Anthropogenic Ultrafine Particles on Lysosomal TRPML1 Channel and Autophagy in Motoneuron-like Cells. Int J Mol Sci 2022; 23:ijms232113041. [PMID: 36361823 PMCID: PMC9656695 DOI: 10.3390/ijms232113041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 10/21/2022] [Accepted: 10/22/2022] [Indexed: 11/16/2022] Open
Abstract
Background: An emerging body of evidence indicates an association between anthropogenic particulate matter (PM) and neurodegeneration. Although the historical focus of PM toxicity has been on the cardiopulmonary system, ultrafine PM particles can also exert detrimental effects in the brain. However, only a few studies are available on the harmful interaction between PM and CNS and on the putative pathomechanisms. Methods: Ultrafine PM particles with a diameter < 0.1 μm (PM0.1) and nanoparticles < 20 nm (NP20) were sampled in a lab-scale combustion system. Their effect on cell tracking in the space was studied by time-lapse and high-content microscopy in NSC-34 motor neurons while pHrodo™ Green conjugates were used to detect PM endocytosis. Western blotting analysis was used to quantify protein expression of lysosomal channels (i.e., TRPML1 and TPC2) and autophagy markers. Current-clamp electrophysiology and Fura2-video imaging techniques were used to measure membrane potential, intracellular Ca2+ homeostasis and TRPML1 activity in NSC-34 cells exposed to PM0.1 and NP20. Results: NP20, but not PM0.1, reduced NSC-34 motor neuron movement in the space. Furthermore, NP20 was able to shift membrane potential of motor neurons toward more depolarizing values. PM0.1 and NP20 were able to enter into the cells by endocytosis and exerted mitochondrial toxicity with the consequent stimulation of ROS production. This latter event was sufficient to determine the hyperactivation of the lysosomal channel TRPML1. Consequently, both LC3-II and p62 protein expression increased after 48 h of exposure together with AMPK activation, suggesting an engulfment of autophagy. The antioxidant molecule Trolox restored TRPML1 function and autophagy. Conclusions: Restoring TRPML1 function by an antioxidant agent may be considered a protective mechanism able to reestablish autophagy flux in motor neurons exposed to nanoparticles.
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Affiliation(s)
- Silvia Sapienza
- Department of Neuroscience, Reproductive and Odontostomatological Sciences, University of Naples Federico II, 80131 Naples, Italy
| | - Valentina Tedeschi
- Department of Neuroscience, Reproductive and Odontostomatological Sciences, University of Naples Federico II, 80131 Naples, Italy
| | - Barbara Apicella
- Istituto di Scienze e Tecnologie per l’Energia e la Mobilità Sostenibili (STEMS)-CNR, 80125 Naples, Italy
| | - Francesco Palestra
- Department of Translational Medical Sciences, Center for Basic and Clinical Immunology Research (CISI), WAO Center of Excellence, University of Naples Federico II, 80131 Naples, Italy
- Institute of Experimental Endocrinology and Oncology (IEOS), National Research Council, 80131 Naples, Italy
| | - Carmela Russo
- Istituto di Scienze e Tecnologie per l’Energia e la Mobilità Sostenibili (STEMS)-CNR, 80125 Naples, Italy
| | - Ilaria Piccialli
- Department of Neuroscience, Reproductive and Odontostomatological Sciences, University of Naples Federico II, 80131 Naples, Italy
| | - Anna Pannaccione
- Department of Neuroscience, Reproductive and Odontostomatological Sciences, University of Naples Federico II, 80131 Naples, Italy
| | - Stefania Loffredo
- Department of Translational Medical Sciences, Center for Basic and Clinical Immunology Research (CISI), WAO Center of Excellence, University of Naples Federico II, 80131 Naples, Italy
- Institute of Experimental Endocrinology and Oncology (IEOS), National Research Council, 80131 Naples, Italy
| | - Agnese Secondo
- Department of Neuroscience, Reproductive and Odontostomatological Sciences, University of Naples Federico II, 80131 Naples, Italy
- Correspondence:
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Sisalli MJ, Della Notte S, Secondo A, Ventra C, Annunziato L, Scorziello A. L-Ornithine L-Aspartate Restores Mitochondrial Function and Modulates Intracellular Calcium Homeostasis in Parkinson's Disease Models. Cells 2022; 11:cells11182909. [PMID: 36139485 PMCID: PMC9496730 DOI: 10.3390/cells11182909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 09/12/2022] [Accepted: 09/13/2022] [Indexed: 11/18/2022] Open
Abstract
The altered crosstalk between mitochondrial dysfunction, intracellular Ca2+ homeostasis, and oxidative stress has a central role in the dopaminergic neurodegeneration. In the present study, we investigated the hypothesis that pharmacological strategies able to improve mitochondrial functions might prevent neuronal dysfunction in in vitro models of Parkinson’s disease. To this aim, the attention was focused on the amino acid ornithine due to its ability to cross the blood–brain barrier, to selectively reach and penetrate the mitochondria through the ornithine transporter 1, and to control mitochondrial function. To pursue this issue, experiments were performed in human neuroblastoma cells SH-SY5Y treated with rotenone and 6-hydroxydopamine to investigate the pharmacological profile of the compound L-Ornithine-L-Aspartate (LOLA) as a new potential therapeutic strategy to prevent dopaminergic neurons’ death. In these models, confocal microscopy experiments with fluorescent dyes measuring mitochondrial calcium content, mitochondrial membrane potential, and mitochondrial ROS production, demonstrated that LOLA improved mitochondrial functions. Moreover, by increasing NCXs expression and activity, LOLA also reduced cytosolic [Ca2+] thanks to its ability to modulate NO production. Collectively, these results indicate that LOLA, by interfering with those mitochondrial mechanisms related to ROS and RNS production, promotes mitochondrial functional recovery, thus confirming the tight relationship existing between cytosolic ionic homeostasis and cellular metabolism depending on the type of insult applied.
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Affiliation(s)
- Maria Josè Sisalli
- Division of Pharmacology, Department of Neuroscience, School of Medicine, University of Naples “Federico II”, 80131 Naples, Italy
| | - Salvatore Della Notte
- Division of Pharmacology, Department of Neuroscience, School of Medicine, University of Naples “Federico II”, 80131 Naples, Italy
| | - Agnese Secondo
- Division of Pharmacology, Department of Neuroscience, School of Medicine, University of Naples “Federico II”, 80131 Naples, Italy
| | | | | | - Antonella Scorziello
- Division of Pharmacology, Department of Neuroscience, School of Medicine, University of Naples “Federico II”, 80131 Naples, Italy
- Correspondence:
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10
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Piccialli I, Sisalli MJ, de Rosa V, Boscia F, Tedeschi V, Secondo A, Pannaccione A. Increased K V2.1 Channel Clustering Underlies the Reduction of Delayed Rectifier K + Currents in Hippocampal Neurons of the Tg2576 Alzheimer's Disease Mouse. Cells 2022; 11:cells11182820. [PMID: 36139395 PMCID: PMC9497218 DOI: 10.3390/cells11182820] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Revised: 09/01/2022] [Accepted: 09/07/2022] [Indexed: 11/30/2022] Open
Abstract
Alzheimer’s disease (AD) is a neurodegenerative disorder characterized by the progressive deterioration of cognitive functions. Cortical and hippocampal hyperexcitability intervenes in the pathological derangement of brain activity leading to cognitive decline. As key regulators of neuronal excitability, the voltage-gated K+ channels (KV) might play a crucial role in the AD pathophysiology. Among them, the KV2.1 channel, the main α subunit mediating the delayed rectifier K+ currents (IDR) and controlling the intrinsic excitability of pyramidal neurons, has been poorly examined in AD. In the present study, we investigated the KV2.1 protein expression and activity in hippocampal neurons from the Tg2576 mouse, a widely used transgenic model of AD. To this aim we performed whole-cell patch-clamp recordings, Western blotting, and immunofluorescence analyses. Our Western blotting results reveal that KV2.1 was overexpressed in the hippocampus of 3-month-old Tg2576 mice and in primary hippocampal neurons from Tg2576 mouse embryos compared with the WT counterparts. Electrophysiological experiments unveiled that the whole IDR were reduced in the Tg2576 primary neurons compared with the WT neurons, and that this reduction was due to the loss of the KV2.1 current component. Moreover, we found that the reduction of the KV2.1-mediated currents was due to increased channel clustering, and that glutamate, a stimulus inducing KV2.1 declustering, was able to restore the IDR to levels comparable to those of the WT neurons. These findings add new information about the dysregulation of ionic homeostasis in the Tg2576 AD mouse model and identify KV2.1 as a possible player in the AD-related alterations of neuronal excitability.
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Bambagiotti G, Castaldo P, Tedeschi V, Piccialli I, Lo Faro AF, Busardò FP, Pichini S, Huestis MA, Pannaccione A, Secondo A. Effects of subtoxic 3-methylmethcathinone concentrations on neuronal cell electrical properties. Toxicologie Analytique et Clinique 2022. [DOI: 10.1016/j.toxac.2022.06.145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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Marcella S, Apicella B, Secondo A, Palestra F, Opromolla G, Ciardi R, Tedeschi V, Ferrara AL, Russo C, Rosaria Galdiero M, Cristinziano L, Modestino L, Spadaro G, Fiorelli A, Loffredo S. Size-based effects of anthropogenic ultrafine particles on activation of human lung macrophages. Environ Int 2022; 166:107395. [PMID: 35839670 DOI: 10.1016/j.envint.2022.107395] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 05/31/2022] [Accepted: 07/04/2022] [Indexed: 06/15/2023]
Abstract
The anthropogenic particulate matter (PM), suspended air dust that can be inhaled by humans and deposited in the lungs, is one of the main pollutants in the industrialized cities atmosphere. Recent studies have shown that PM has adverse effects on respiratory diseases. These effects are mainly due to the ultrafine particles (PM0.1, PM < 100 nm), which, thanks to their PM size, are efficiently deposited in nasal, tracheobronchial, and alveolar regions. Pulmonary macrophages are a heterogeneous cell population distributed in different lung compartments, whose role in inflammatory response to injury is of particular relevance. In this study, we investigated the effect of PM0.1 on Human Lung Macrophages (HLMs) activation evaluated as proinflammatory cytokines and chemokine release, Reactive Oxygen Species (ROS) production and intracellular Ca2+concentration ([Ca2+]i). Furthermore, PM0.1, after removal of organic fraction, was fractionated in nanoparticles both smaller (NP20) and bigger (NP100) than 20 nm by a properlydeveloped analytical protocol, allowed isolating their individual contribution. Interestingly, while PM0.1 and NP20 induced stimulatory effects on HLM cytokines release, NP100 had not effect. In particular, PM0.1 induced IL-6, IL-1β, TNF-α, but not CXCL8, release from HLMs. Moreover, PM0.1, NP20 and NP100 did not induce β-glucuronidase release, a preformed mediator contained in HLMs. The long time necessary for cytokines release (18 h) suggested that PM0.1 and NP20 could induce ex-novo production of the tested mediators. Accordingly, after 6 h of incubation, PM0.1 and NP20 induced mRNA expression of IL-6, TNF-α and IL-1β. Moreover, NP20 induced ROS production and [Ca2+]i increase in a time-dependent manner, without producing cytotoxicity. Collectively, the present data highlight the main proinflammatory role of NP20 among PM fractions. This is particularly of concern because this fraction is not currently covered by legal limits as it is not easily measured at the exhausts by the available technical methodologies, suggesting that it is mandatory to search for new monitoring techniques and strategies for limiting NP20 formation.
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Affiliation(s)
- Simone Marcella
- Department of Translational Medical Sciences and Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, WAO Center of Excellence, 80131 Naples, Italy.
| | - Barbara Apicella
- Istituto di Scienze e Tecnologie per l'Energia e la Mobilità Sostenibili (STEMS)-CNR, 80125 Naples, Italy.
| | - Agnese Secondo
- Department of Neuroscience, Reproductive and Odontostomatological Sciences, University of Naples Federico II, 80131 Naples, Italy.
| | - Francesco Palestra
- Department of Translational Medical Sciences and Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, WAO Center of Excellence, 80131 Naples, Italy.
| | - Giorgia Opromolla
- Translational Medical and Surgical Science, University of Campania Luigi Vanvitelli, 80131 Naples, Italy.
| | - Renato Ciardi
- Department of Translational Medical Sciences and Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, WAO Center of Excellence, 80131 Naples, Italy.
| | - Valentina Tedeschi
- Department of Neuroscience, Reproductive and Odontostomatological Sciences, University of Naples Federico II, 80131 Naples, Italy.
| | - Anne Lise Ferrara
- Department of Translational Medical Sciences and Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, WAO Center of Excellence, 80131 Naples, Italy; Institute of Experimental Endocrinology and Oncology (IEOS), National Research Council, 80131 Naples, Italy.
| | - Carmela Russo
- Istituto di Scienze e Tecnologie per l'Energia e la Mobilità Sostenibili (STEMS)-CNR, 80125 Naples, Italy.
| | - Maria Rosaria Galdiero
- Department of Translational Medical Sciences and Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, WAO Center of Excellence, 80131 Naples, Italy; Institute of Experimental Endocrinology and Oncology (IEOS), National Research Council, 80131 Naples, Italy.
| | - Leonardo Cristinziano
- Department of Translational Medical Sciences and Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, WAO Center of Excellence, 80131 Naples, Italy.
| | - Luca Modestino
- Department of Translational Medical Sciences and Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, WAO Center of Excellence, 80131 Naples, Italy.
| | - Giuseppe Spadaro
- Department of Translational Medical Sciences and Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, WAO Center of Excellence, 80131 Naples, Italy.
| | - Alfonso Fiorelli
- Translational Medical and Surgical Science, University of Campania Luigi Vanvitelli, 80131 Naples, Italy.
| | - Stefania Loffredo
- Department of Translational Medical Sciences and Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, WAO Center of Excellence, 80131 Naples, Italy; Institute of Experimental Endocrinology and Oncology (IEOS), National Research Council, 80131 Naples, Italy.
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Piccialli I, Tedeschi V, Caputo L, D’Errico S, Ciccone R, De Feo V, Secondo A, Pannaccione A. Exploring the Therapeutic Potential of Phytochemicals in Alzheimer’s Disease: Focus on Polyphenols and Monoterpenes. Front Pharmacol 2022; 13:876614. [PMID: 35600880 PMCID: PMC9114803 DOI: 10.3389/fphar.2022.876614] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Accepted: 04/11/2022] [Indexed: 12/21/2022] Open
Abstract
Alzheimer’s disease (AD) is a chronic, complex neurodegenerative disorder mainly characterized by the irreversible loss of memory and cognitive functions. Different hypotheses have been proposed thus far to explain the etiology of this devastating disorder, including those centered on the Amyloid-β (Aβ) peptide aggregation, Tau hyperphosphorylation, neuroinflammation and oxidative stress. Nonetheless, the therapeutic strategies conceived thus far to treat AD neurodegeneration have proven unsuccessful, probably due to the use of single-target drugs unable to arrest the progressive deterioration of brain functions. For this reason, the theoretical description of the AD etiology has recently switched from over-emphasizing a single deleterious process to considering AD neurodegeneration as the result of different pathogenic mechanisms and their interplay. Moreover, much relevance has recently been conferred to several comorbidities inducing insulin resistance and brain energy hypometabolism, including diabetes and obesity. As consequence, much interest is currently accorded in AD treatment to a multi-target approach interfering with different pathways at the same time, and to life-style interventions aimed at preventing the modifiable risk-factors strictly associated with aging. In this context, phytochemical compounds are emerging as an enormous source to draw on in the search for multi-target agents completing or assisting the traditional pharmacological medicine. Intriguingly, many plant-derived compounds have proven their efficacy in counteracting several pathogenic processes such as the Aβ aggregation, neuroinflammation, oxidative stress and insulin resistance. Many strategies have also been conceived to overcome the limitations of some promising phytochemicals related to their poor pharmacokinetic profiles, including nanotechnology and synthetic routes. Considering the emerging therapeutic potential of natural medicine, the aim of the present review is therefore to highlight the most promising phytochemical compounds belonging to two major classes, polyphenols and monoterpenes, and to report the main findings about their mechanisms of action relating to the AD pathogenesis.
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Affiliation(s)
- Ilaria Piccialli
- Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, University of Naples “Federico II”, Naples, Italy
| | - Valentina Tedeschi
- Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, University of Naples “Federico II”, Naples, Italy
| | - Lucia Caputo
- Department of Pharmacy, University of Salerno, Salerno, Italy
| | - Stefano D’Errico
- Department of Pharmacy, University of Naples “Federico II”, Naples, Italy
| | - Roselia Ciccone
- Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, University of Naples “Federico II”, Naples, Italy
| | - Vincenzo De Feo
- Department of Pharmacy, University of Salerno, Salerno, Italy
| | - Agnese Secondo
- Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, University of Naples “Federico II”, Naples, Italy
| | - Anna Pannaccione
- Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, University of Naples “Federico II”, Naples, Italy
- *Correspondence: Anna Pannaccione,
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Petrozziello T, Boscia F, Tedeschi V, Pannaccione A, de Rosa V, Corvino A, Severino B, Annunziato L, Secondo A. Na +/Ca 2+ exchanger isoform 1 takes part to the Ca 2+-related prosurvival pathway of SOD1 in primary motor neurons exposed to beta-methylamino-L-alanine. Cell Commun Signal 2022; 20:8. [PMID: 35022040 PMCID: PMC8756626 DOI: 10.1186/s12964-021-00813-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Accepted: 12/02/2021] [Indexed: 11/10/2022] Open
Abstract
Background The cycad neurotoxin beta-methylamino-l-alanine (L-BMAA), one of the environmental trigger factor for amyotrophic lateral sclerosis/Parkinson-dementia complex (ALS/PDC), may cause neurodegeneration by disrupting organellar Ca2+ homeostasis. Through the activation of Akt/ERK1/2 pathway, the Cu,Zn-superoxide dismutase (SOD1) and its non-metallated form, ApoSOD1, prevent endoplasmic reticulum (ER) stress-induced cell death in motor neurons exposed to L-BMAA. This occurs through the rapid increase of intracellular Ca2+ concentration ([Ca2+]i) in part flowing from the extracellular compartment and in part released from ER. However, the molecular components of this mechanism remain uncharacterized. Methods By an integrated approach consisting on the use of siRNA strategy, Western blotting, confocal double- labeling immunofluorescence, patch-clamp electrophysiology, and Fura 2-/SBFI-single-cell imaging, we explored in rat motor neuron-enriched cultures the involvement of the plasma membrane proteins Na+/Ca2+ exchanger (NCX) and purinergic P2X7 receptor as well as that of the intracellular cADP-ribose (cADPR) pathway, in the neuroprotective mechanism of SOD1. Results We showed that SOD1-induced [Ca2+]i rise was prevented neither by A430879, a P2X7 receptor specific antagonist or 8-bromo-cADPR, a cell permeant antagonist of cADP-ribose, but only by the pan inhibitor of NCX, CB-DMB. The same occurred for the ApoSOD1. Confocal double labeling immunofluorescence showed a huge expression of plasmalemmal NCX1 and intracellular NCX3 isoforms. Furthermore, we identified NCX1 reverse mode as the main mechanism responsible for the neuroprotective ER Ca2+ refilling elicited by SOD1 and ApoSOD1 through which they promoted translocation of active Akt in the nuclei of a subset of primary motor neurons. Finally, the activation of NCX1 by the specific agonist CN-PYB2 protected motor neurons from L-BMAA-induced cell death, mimicking the effect of SOD1. Conclusion Collectively, our data indicate that SOD1 and ApoSOD1 exert their neuroprotective effect by modulating ER Ca2+ content through the activation of NCX1 reverse mode and Akt nuclear translocation in a subset of primary motor neurons. Video Abstract
Supplementary Information The online version contains supplementary material available at 10.1186/s12964-021-00813-z.
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Affiliation(s)
- Tiziana Petrozziello
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Via S. Pansini 5, 80131, Naples, Italy
| | - Francesca Boscia
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Via S. Pansini 5, 80131, Naples, Italy
| | - Valentina Tedeschi
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Via S. Pansini 5, 80131, Naples, Italy
| | - Anna Pannaccione
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Via S. Pansini 5, 80131, Naples, Italy
| | - Valeria de Rosa
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Via S. Pansini 5, 80131, Naples, Italy
| | - Angela Corvino
- Department of Pharmacy, School of Medicine, "Federico II" University of Naples, Via D. Montesano 49, 80131, Naples, Italy
| | - Beatrice Severino
- Department of Pharmacy, School of Medicine, "Federico II" University of Naples, Via D. Montesano 49, 80131, Naples, Italy
| | | | - Agnese Secondo
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Via S. Pansini 5, 80131, Naples, Italy.
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Tedeschi V, Sisalli MJ, Pannaccione A, Piccialli I, Molinaro P, Annunziato L, Secondo A. Na +/Ca 2+ exchanger isoform 1 (NCX1) and canonical transient receptor potential channel 6 (TRPC6) are recruited by STIM1 to mediate Store-Operated Calcium Entry in primary cortical neurons. Cell Calcium 2022; 101:102525. [PMID: 34995919 DOI: 10.1016/j.ceca.2021.102525] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 11/05/2021] [Accepted: 12/26/2021] [Indexed: 02/01/2023]
Abstract
Excessive calcium (Ca2+) release from the endoplasmic reticulum (ER) represents an important hallmark of several neurodegenerative diseases. ER is recharged from Ca2+ through the so-called Store-Operated Calcium Entry (SOCE) thus providing Ca2+ signals to regulate critical cell functions. Single transmembrane-spanning domain protein stromal interacting molecule 1 (STIM1), mainly residing in the ER, and plasmalemmal channel Orai1 represent the SOCE key components at neuronal level. However, many other proteins participate to ER Ca2+ refilling including the Na+/Ca2+ exchanger isoform 1 (NCX1), whose regulation by ER remains unknown. In this study, we tested the possibility that neuronal NCX1 may take part to SOCE through the interaction with STIM1. In rat primary cortical neurons and in nerve growth factor (NGF)-differentiated PC12 cells NCX1 knocking down by siRNA strategy significantly prevented SOCE as well as SOCE pharmacological inhibition by SKF-96365 and 2-APB. A significant reduction of SOCE was recorded also in synaptosomes from ncx1-/- mice brain compared with ncx1+/+ mice. Double labeling confocal experiments showed a large co-localization between NCX1 and STIM1 in rat primary cortical neurons. Accordingly, NCX1 and STIM1 co-immunoprecipitated and functionally interacted each other during ischemic preconditioning, a phenomenon inducing ischemic tolerance. However, STIM1 knocking down reduced NCX1 activity recorded by either patch-clamp electrophysiology or Fura-2 single-cell microfluorimetry. Furthermore, canonical transient receptor potential channel 6 (TRPC6) was identified as the mechanism mediating local increase of sodium (Na+) useful to drive NCX1 reverse mode and, therefore, NCX1-mediated Ca2+ refilling. In fact, TRPC6 not only interacted with STIM1, as shown by the co-localization and co-immunoprecipitation with the ER Ca2+ sensor, but it also mediated 1,3-Benzenedicarboxylic acid, 4,4'-[1,4,10-trioxa-7,13-diazacyclopentadecane-7,13-diylbis(5-methoxy-6,12-benzofurandiyl)]bis-, tetrakis[(acetyloxy)methyl] ester (SBFI)-monitored Na+ increase elicited by thapsigargin in primary cortical neurons. Accordingly, efficient TRPC6 knockdown prevented thapsigargin-induced intracellular Na+ elevation and SOCE. Collectively, we identify NCX1 as a new partner of STIM1 in mediating SOCE, whose activation in the reverse mode may be facilitated by the local increase of Na+ concentration due to the interaction between STIM1 and TRPC6 in primary cortical neurons.
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Affiliation(s)
- Valentina Tedeschi
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Via S. Pansini 5, 80131, Naples, Italy
| | - Maria Josè Sisalli
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Via S. Pansini 5, 80131, Naples, Italy
| | - Anna Pannaccione
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Via S. Pansini 5, 80131, Naples, Italy
| | - Ilaria Piccialli
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Via S. Pansini 5, 80131, Naples, Italy
| | - Pasquale Molinaro
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Via S. Pansini 5, 80131, Naples, Italy
| | | | - Agnese Secondo
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Via S. Pansini 5, 80131, Naples, Italy.
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Piccialli I, Ciccone R, Secondo A, Boscia F, Tedeschi V, de Rosa V, Cepparulo P, Annunziato L, Pannaccione A. The Na +/Ca 2+ Exchanger 3 Is Functionally Coupled With the Na V1.6 Voltage-Gated Channel and Promotes an Endoplasmic Reticulum Ca 2+ Refilling in a Transgenic Model of Alzheimer's Disease. Front Pharmacol 2021; 12:775271. [PMID: 34955845 PMCID: PMC8692738 DOI: 10.3389/fphar.2021.775271] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Accepted: 11/22/2021] [Indexed: 01/15/2023] Open
Abstract
The remodelling of neuronal ionic homeostasis by altered channels and transporters is a critical feature of the Alzheimer's disease (AD) pathogenesis. Different reports converge on the concept that the Na+/Ca2+ exchanger (NCX), as one of the main regulators of Na+ and Ca2+ concentrations and signalling, could exert a neuroprotective role in AD. The activity of NCX has been found to be increased in AD brains, where it seemed to correlate with an increased neuronal survival. Moreover, the enhancement of the NCX3 currents (INCX) in primary neurons treated with the neurotoxic amyloid β 1-42 (Aβ1-42) oligomers prevented the endoplasmic reticulum (ER) stress and neuronal death. The present study has been designed to investigate any possible modulation of the INCX, the functional interaction between NCX and the NaV1.6 channel, and their impact on the Ca2+ homeostasis in a transgenic in vitro model of AD, the primary hippocampal neurons from the Tg2576 mouse, which overproduce the Aβ1-42 peptide. Electrophysiological studies, carried in the presence of siRNA and the isoform-selective NCX inhibitor KB-R7943, showed that the activity of a specific NCX isoform, NCX3, was upregulated in its reverse, Ca2+ influx mode of operation in the Tg2576 neurons. The enhanced NCX activity contributed, in turn, to increase the ER Ca2+ content, without affecting the cytosolic Ca2+ concentrations of the Tg2576 neurons. Interestingly, our experiments have also uncovered a functional coupling between NCX3 and the voltage-gated NaV1.6 channels. In particular, the increased NaV1.6 currents appeared to be responsible for the upregulation of the reverse mode of NCX3, since both TTX and the Streptomyces griseolus antibiotic anisomycin, by reducing the NaV1.6 currents, counteracted the increase of the INCX in the Tg2576 neurons. In agreement, our immunofluorescence analyses revealed that the NCX3/NaV1.6 co-expression was increased in the Tg2576 hippocampal neurons in comparison with the WT neurons. Collectively, these findings indicate that NCX3 might intervene in the Ca2+ remodelling occurring in the Tg2576 primary neurons thus emerging as a molecular target with a neuroprotective potential, and provide a new outcome of the NaV1.6 upregulation related to the modulation of the intracellular Ca2+ concentrations in AD neurons.
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Affiliation(s)
- Ilaria Piccialli
- Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, Federico II University of Naples, Naples, Italy
| | - Roselia Ciccone
- Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, Federico II University of Naples, Naples, Italy
| | - Agnese Secondo
- Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, Federico II University of Naples, Naples, Italy
| | - Francesca Boscia
- Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, Federico II University of Naples, Naples, Italy
| | - Valentina Tedeschi
- Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, Federico II University of Naples, Naples, Italy
| | - Valeria de Rosa
- Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, Federico II University of Naples, Naples, Italy
| | - Pasquale Cepparulo
- Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, Federico II University of Naples, Naples, Italy
| | | | - Anna Pannaccione
- Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, Federico II University of Naples, Naples, Italy
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Magli E, Fattorusso C, Persico M, Corvino A, Esposito G, Fiorino F, Luciano P, Perissutti E, Santagada V, Severino B, Tedeschi V, Pannaccione A, Pignataro G, Caliendo G, Annunziato L, Secondo A, Frecentese F. New Insights into the Structure-Activity Relationship and Neuroprotective Profile of Benzodiazepinone Derivatives of Neurounina-1 as Modulators of the Na +/Ca 2+ Exchanger Isoforms. J Med Chem 2021; 64:17901-17919. [PMID: 34845907 PMCID: PMC8713167 DOI: 10.1021/acs.jmedchem.1c01212] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Due to the neuroprotective role of the Na+/Ca2+ exchanger (NCX) isoforms NCX1 and NCX3, we synthesized novel benzodiazepinone derivatives of the unique NCX activator Neurounina-1, named compounds 1-19. The derivatives are characterized by a benzodiazepinonic nucleus linked to five- or six-membered cyclic amines via a methylene, ethylene, or acetyl spacer. The compounds have been screened on NCX1/NCX3 isoform activities by a high-throughput screening approach, and the most promising were characterized by patch-clamp electrophysiology and Fura-2AM video imaging. We identified two novel modulators of NCX: compound 4, inhibiting NCX1 reverse mode, and compound 14, enhancing NCX1 and NCX3 activity. Compound 1 displayed neuroprotection in two preclinical models of brain ischemia. The analysis of the conformational and steric features led to the identification of the molecular volume required for selective NCX1 activation for mixed NCX1/NCX3 activation or for NCX1 inhibition, providing the first prototypal model for the design of optimized isoform modulators.
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Affiliation(s)
- Elisa Magli
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano 49, 80131 Naples, Italy
| | - Caterina Fattorusso
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano 49, 80131 Naples, Italy
| | - Marco Persico
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano 49, 80131 Naples, Italy
| | - Angela Corvino
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano 49, 80131 Naples, Italy
| | - Gianluca Esposito
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano 49, 80131 Naples, Italy
| | - Ferdinando Fiorino
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano 49, 80131 Naples, Italy
| | - Paolo Luciano
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano 49, 80131 Naples, Italy
| | - Elisa Perissutti
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano 49, 80131 Naples, Italy
| | - Vincenzo Santagada
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano 49, 80131 Naples, Italy
| | - Beatrice Severino
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano 49, 80131 Naples, Italy
| | - Valentina Tedeschi
- Department of Neuroscience, Division of Pharmacology, University of Naples "Federico II", via Pansini 5, 80131 Naples, Italy
| | - Anna Pannaccione
- Department of Neuroscience, Division of Pharmacology, University of Naples "Federico II", via Pansini 5, 80131 Naples, Italy
| | - Giuseppe Pignataro
- Department of Neuroscience, Division of Pharmacology, University of Naples "Federico II", via Pansini 5, 80131 Naples, Italy
| | - Giuseppe Caliendo
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano 49, 80131 Naples, Italy
| | | | - Agnese Secondo
- Department of Neuroscience, Division of Pharmacology, University of Naples "Federico II", via Pansini 5, 80131 Naples, Italy
| | - Francesco Frecentese
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano 49, 80131 Naples, Italy
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Tedeschi V, Secondo A. Emerging role of lysosomal calcium store as a hub of neuroprotection. Neural Regen Res 2021; 17:1259-1260. [PMID: 34782563 PMCID: PMC8643054 DOI: 10.4103/1673-5374.327340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Affiliation(s)
- Valentina Tedeschi
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Naples, Italy
| | - Agnese Secondo
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Naples, Italy
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19
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Cammarota M, de Rosa V, Pannaccione A, Secondo A, Tedeschi V, Piccialli I, Fiorino F, Severino B, Annunziato L, Boscia F. Rebound effects of NCX3 pharmacological inhibition: A novel strategy to accelerate myelin formation in oligodendrocytes. Biomed Pharmacother 2021; 143:112111. [PMID: 34481380 DOI: 10.1016/j.biopha.2021.112111] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 08/20/2021] [Accepted: 08/23/2021] [Indexed: 11/18/2022] Open
Abstract
The Na+/Ca2+ exchanger NCX3 is an important regulator of sodium and calcium homeostasis in oligodendrocyte lineage. To date, no information is available on the effects resulting from prolonged exposure to NCX3 blockers and subsequent drug washout in oligodendroglia. Here, we investigated, by means of biochemical, morphological and functional analyses, the pharmacological effects of the NCX3 inhibitor, the 5-amino-N-butyl-2-(4-ethoxyphenoxy)-benzamide hydrochloride (BED), on NCXs expression and activity, as well as intracellular [Na+]i and [Ca2+]i levels, during treatment and following drug washout both in human MO3.13 oligodendrocytes and rat primary oligodendrocyte precursor cells (OPCs). BED exposure antagonized NCX activity, induced OPCs proliferation and [Na+]i accumulation. By contrast, 2 days of BED washout after 4 days of treatment significantly upregulated low molecular weight NCX3 proteins, reversed NCX activity, and increased intracellular [Ca2+]i. This BED-free effect was accompanied by an upregulation of NCX3 expression in oligodendrocyte processes and accelerated expression of myelin markers in rat primary oligodendrocytes. Collectively, our findings show that the pharmacological inhibition of the NCX3 exchanger with BED blocker maybe followed by a rebound increase in NCX3 expression and reversal activity that accelerate myelin sheet formation in oligodendrocytes. In addition, they indicate that a particular attention should be paid to the use of NCX inhibitors for possible rebound effects, and suggest that further studies will be necessary to investigate whether selective pharmacological modulation of NCX3 exchanger may be exploited to benefit demyelination and remyelination in demyelinating diseases.
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Affiliation(s)
- Mariarosaria Cammarota
- Division of Pharmacology, Department of Neuroscience, Reproductive Sciences and Dentistry, School of Medicine, Federico II University of Naples, Naples, Italy
| | - Valeria de Rosa
- Division of Pharmacology, Department of Neuroscience, Reproductive Sciences and Dentistry, School of Medicine, Federico II University of Naples, Naples, Italy
| | - Anna Pannaccione
- Division of Pharmacology, Department of Neuroscience, Reproductive Sciences and Dentistry, School of Medicine, Federico II University of Naples, Naples, Italy
| | - Agnese Secondo
- Division of Pharmacology, Department of Neuroscience, Reproductive Sciences and Dentistry, School of Medicine, Federico II University of Naples, Naples, Italy
| | - Valentina Tedeschi
- Division of Pharmacology, Department of Neuroscience, Reproductive Sciences and Dentistry, School of Medicine, Federico II University of Naples, Naples, Italy
| | - Ilaria Piccialli
- Division of Pharmacology, Department of Neuroscience, Reproductive Sciences and Dentistry, School of Medicine, Federico II University of Naples, Naples, Italy
| | | | - Beatrice Severino
- Department of Pharmacy, Federico II University of Naples, Naples, Italy
| | | | - Francesca Boscia
- Division of Pharmacology, Department of Neuroscience, Reproductive Sciences and Dentistry, School of Medicine, Federico II University of Naples, Naples, Italy.
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Gruszczynska-Biegala J, Martin-Romero FJ, Smani T, Secondo A. Editorial: Molecular Components of Store-Operated Calcium Entry in Health and Disease. Front Cell Neurosci 2021; 15:771138. [PMID: 34675778 PMCID: PMC8523831 DOI: 10.3389/fncel.2021.771138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2021] [Accepted: 09/15/2021] [Indexed: 11/16/2022] Open
Affiliation(s)
- Joanna Gruszczynska-Biegala
- Laboratory of Molecular Biology, Mossakowski Medical Research Institute, Polish Academy of Sciences, Warsaw, Poland
| | | | - Tarik Smani
- Group of Cardiovascular Pathophysiology, Institute of Biomedicine of Seville, University Hospital of Virgen del Rocío, University of Seville, CSIC, Seville, Spain.,Department of Medical Physiology and Biophysics, University of Seville, Seville, Spain
| | - Agnese Secondo
- Department of Neuroscience, "Federico II" University of Naples, Naples, Italy
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21
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D'Errico S, Greco F, Patrizia Falanga A, Tedeschi V, Piccialli I, Marzano M, Terracciano M, Secondo A, Roviello GN, Oliviero G, Borbone N. Probing the Ca 2+ mobilizing properties on primary cortical neurons of a new stable cADPR mimic. Bioorg Chem 2021; 117:105401. [PMID: 34662754 DOI: 10.1016/j.bioorg.2021.105401] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 09/08/2021] [Accepted: 09/11/2021] [Indexed: 01/06/2023]
Abstract
Cyclic adenosine diphosphate ribose (cADPR) is a second messenger involved in the Ca2+ homeostasis. Its chemical instability prompted researchers to tune point by point its structure, obtaining stable analogues featuring interesting biological properties. One of the most challenging derivatives is the cyclic inosine diphosphate ribose (cIDPR), in which the hypoxanthine isosterically replaces the adenine. As our research focuses on the synthesis of N1 substituted inosines, in the last few years we have produced new flexible cIDPR analogues, where the northern ribose has been replaced by alkyl chains. Interestingly, some of them mobilized Ca2+ ions in PC12 cells. To extend our SAR studies, herein we report on the synthesis of a new stable cIDPR derivative which contains the 2″S,3″R dihydroxypentyl chain instead of the northern ribose. Interestingly, the new cyclic derivative and its open precursor induced an increase in intracellular calcium concentration ([Ca2+]i) with the same efficacy of the endogenous cADPR in rat primary cortical neurons.
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Affiliation(s)
- Stefano D'Errico
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, via Domenico Montesano, 49-80131 Napoli, Italy
| | - Francesca Greco
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, via Domenico Montesano, 49-80131 Napoli, Italy
| | - Andrea Patrizia Falanga
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, via Domenico Montesano, 49-80131 Napoli, Italy
| | - Valentina Tedeschi
- Dipartimento di Neuroscienze, Scienze Riproduttive e Odontostomatologiche, Divisione di Farmacologia, Università degli Studi di Napoli Federico II, Via Sergio Pansini, 5-80131 Napoli, Italy
| | - Ilaria Piccialli
- Dipartimento di Neuroscienze, Scienze Riproduttive e Odontostomatologiche, Divisione di Farmacologia, Università degli Studi di Napoli Federico II, Via Sergio Pansini, 5-80131 Napoli, Italy
| | - Maria Marzano
- Istituto di Cristallografia (IC) CNR, Via Amendola 122/O-70126, Bari, Italy
| | - Monica Terracciano
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, via Domenico Montesano, 49-80131 Napoli, Italy
| | - Agnese Secondo
- Dipartimento di Neuroscienze, Scienze Riproduttive e Odontostomatologiche, Divisione di Farmacologia, Università degli Studi di Napoli Federico II, Via Sergio Pansini, 5-80131 Napoli, Italy
| | | | - Giorgia Oliviero
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, via Sergio Pansini, 5-80131 Napoli, Italy.
| | - Nicola Borbone
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, via Domenico Montesano, 49-80131 Napoli, Italy
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22
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Anzilotti S, Valsecchi V, Brancaccio P, Guida N, Laudati G, Tedeschi V, Petrozziello T, Frecentese F, Magli E, Hassler B, Cuomo O, Formisano L, Secondo A, Annunziato L, Pignataro G. Prolonged NCX activation prevents SOD1 accumulation, reduces neuroinflammation, ameliorates motor behavior and prolongs survival in a ALS mouse model. Neurobiol Dis 2021; 159:105480. [PMID: 34411705 DOI: 10.1016/j.nbd.2021.105480] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 07/09/2021] [Accepted: 08/09/2021] [Indexed: 11/19/2022] Open
Abstract
Imbalance in cellular ionic homeostasis is a hallmark of several neurodegenerative diseases including Amyotrophic Lateral Sclerosis (ALS). Sodium-calcium exchanger (NCX) is a membrane antiporter that, operating in a bidirectional way, couples the exchange of Ca2+ and Na + ions in neurons and glial cells, thus controlling the intracellular homeostasis of these ions. Among the three NCX genes, NCX1 and NCX2 are widely expressed within the CNS, while NCX3 is present only in skeletal muscles and at lower levels of expression in selected brain regions. ALS mice showed a reduction in the expression and activity of NCX1 and NCX2 consistent with disease progression, therefore we aimed to investigate their role in ALS pathophysiology. Notably, we demonstrated that the pharmacological activation of NCX1 and NCX2 by the prolonged treatment of SOD1G93A mice with the newly synthesized compound neurounina: (1) prevented the reduction in NCX activity observed in spinal cord; (2) preserved motor neurons survival in the ventral spinal horn of SOD1G93A mice; (3) prevented the spinal cord accumulation of misfolded SOD1; (4) reduced astroglia and microglia activation and spared the resident microglia cells in the spinal cord; (5) improved the lifespan and mitigated motor symptoms of ALS mice. The present study highlights the significant role of NCX1 and NCX2 in the pathophysiology of this neurodegenerative disorder and paves the way for the design of a new pharmacological approach for ALS.
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Affiliation(s)
| | - Valeria Valsecchi
- Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, University of Naples "Federico II", 80131 Naples, Italy
| | - Paola Brancaccio
- Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, University of Naples "Federico II", 80131 Naples, Italy
| | | | - Giusy Laudati
- Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, University of Naples "Federico II", 80131 Naples, Italy
| | - Valentina Tedeschi
- Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, University of Naples "Federico II", 80131 Naples, Italy
| | - Tiziana Petrozziello
- Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, University of Naples "Federico II", 80131 Naples, Italy
| | - Francesco Frecentese
- Department of Pharmacy, School of Medicine, University of Naples "Federico II", 80131 Naples, Italy
| | - Elisa Magli
- Department of Pharmacy, School of Medicine, University of Naples "Federico II", 80131 Naples, Italy
| | - Brenda Hassler
- Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, University of Naples "Federico II", 80131 Naples, Italy
| | - Ornella Cuomo
- Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, University of Naples "Federico II", 80131 Naples, Italy
| | - Luigi Formisano
- Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, University of Naples "Federico II", 80131 Naples, Italy
| | - Agnese Secondo
- Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, University of Naples "Federico II", 80131 Naples, Italy
| | | | - Giuseppe Pignataro
- Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, University of Naples "Federico II", 80131 Naples, Italy.
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23
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Mollo N, Esposito M, Aurilia M, Scognamiglio R, Accarino R, Bonfiglio F, Cicatiello R, Charalambous M, Procaccini C, Micillo T, Genesio R, Calì G, Secondo A, Paladino S, Matarese G, Vita GD, Conti A, Nitsch L, Izzo A. Human Trisomic iPSCs from Down Syndrome Fibroblasts Manifest Mitochondrial Alterations Early during Neuronal Differentiation. Biology (Basel) 2021; 10:biology10070609. [PMID: 34209429 PMCID: PMC8301075 DOI: 10.3390/biology10070609] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 06/25/2021] [Accepted: 06/27/2021] [Indexed: 12/16/2022]
Abstract
BACKGROUND The presence of mitochondrial alterations in Down syndrome suggests that it might affect neuronal differentiation. We established a model of trisomic iPSCs, differentiating into neural precursor cells (NPCs) to monitor the occurrence of differentiation defects and mitochondrial dysfunction. METHODS Isogenic trisomic and euploid iPSCs were differentiated into NPCs in monolayer cultures using the dual-SMAD inhibition protocol. Expression of pluripotency and neural differentiation genes was assessed by qRT-PCR and immunofluorescence. Meta-analysis of expression data was performed on iPSCs. Mitochondrial Ca2+, reactive oxygen species (ROS) and ATP production were investigated using fluorescent probes. Oxygen consumption rate (OCR) was determined by Seahorse Analyzer. RESULTS NPCs at day 7 of induction uniformly expressed the differentiation markers PAX6, SOX2 and NESTIN but not the stemness marker OCT4. At day 21, trisomic NPCs expressed higher levels of typical glial differentiation genes. Expression profiles indicated that mitochondrial genes were dysregulated in trisomic iPSCs. Trisomic NPCs showed altered mitochondrial Ca2+, reduced OCR and ATP synthesis, and elevated ROS production. CONCLUSIONS Human trisomic iPSCs can be rapidly and efficiently differentiated into NPC monolayers. The trisomic NPCs obtained exhibit greater glial-like differentiation potential than their euploid counterparts and manifest mitochondrial dysfunction as early as day 7 of neuronal differentiation.
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Affiliation(s)
- Nunzia Mollo
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, 80131 Naples, Italy; (N.M.); (M.E.); (M.A.); (R.S.); (R.A.); (R.C.); (R.G.); (S.P.); (G.M.); (G.D.V.); (A.C.); (L.N.)
| | - Matteo Esposito
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, 80131 Naples, Italy; (N.M.); (M.E.); (M.A.); (R.S.); (R.A.); (R.C.); (R.G.); (S.P.); (G.M.); (G.D.V.); (A.C.); (L.N.)
| | - Miriam Aurilia
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, 80131 Naples, Italy; (N.M.); (M.E.); (M.A.); (R.S.); (R.A.); (R.C.); (R.G.); (S.P.); (G.M.); (G.D.V.); (A.C.); (L.N.)
| | - Roberta Scognamiglio
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, 80131 Naples, Italy; (N.M.); (M.E.); (M.A.); (R.S.); (R.A.); (R.C.); (R.G.); (S.P.); (G.M.); (G.D.V.); (A.C.); (L.N.)
| | - Rossella Accarino
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, 80131 Naples, Italy; (N.M.); (M.E.); (M.A.); (R.S.); (R.A.); (R.C.); (R.G.); (S.P.); (G.M.); (G.D.V.); (A.C.); (L.N.)
| | - Ferdinando Bonfiglio
- CEINGE-Biotecnologie Avanzate s.c.ar.l., 80145 Naples, Italy;
- Department of Chemical, Materials and Production Engineering, University of Naples Federico II, 80125 Naples, Italy
| | - Rita Cicatiello
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, 80131 Naples, Italy; (N.M.); (M.E.); (M.A.); (R.S.); (R.A.); (R.C.); (R.G.); (S.P.); (G.M.); (G.D.V.); (A.C.); (L.N.)
| | - Maria Charalambous
- Institute of Experimental Endocrinology and Oncology “G. Salvatore”, National Research Council, 80131 Naples, Italy; (M.C.); (C.P.); (G.C.)
| | - Claudio Procaccini
- Institute of Experimental Endocrinology and Oncology “G. Salvatore”, National Research Council, 80131 Naples, Italy; (M.C.); (C.P.); (G.C.)
- Neuroimmunology Unit, IRCCS, Fondazione Santa Lucia, 00143 Rome, Italy;
| | - Teresa Micillo
- Neuroimmunology Unit, IRCCS, Fondazione Santa Lucia, 00143 Rome, Italy;
| | - Rita Genesio
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, 80131 Naples, Italy; (N.M.); (M.E.); (M.A.); (R.S.); (R.A.); (R.C.); (R.G.); (S.P.); (G.M.); (G.D.V.); (A.C.); (L.N.)
| | - Gaetano Calì
- Institute of Experimental Endocrinology and Oncology “G. Salvatore”, National Research Council, 80131 Naples, Italy; (M.C.); (C.P.); (G.C.)
| | - Agnese Secondo
- Department of Neuroscience, Reproductive and Odontostomatological Sciences, University of Naples Federico II, 80131 Naples, Italy;
| | - Simona Paladino
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, 80131 Naples, Italy; (N.M.); (M.E.); (M.A.); (R.S.); (R.A.); (R.C.); (R.G.); (S.P.); (G.M.); (G.D.V.); (A.C.); (L.N.)
| | - Giuseppe Matarese
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, 80131 Naples, Italy; (N.M.); (M.E.); (M.A.); (R.S.); (R.A.); (R.C.); (R.G.); (S.P.); (G.M.); (G.D.V.); (A.C.); (L.N.)
- Institute of Experimental Endocrinology and Oncology “G. Salvatore”, National Research Council, 80131 Naples, Italy; (M.C.); (C.P.); (G.C.)
| | - Gabriella De Vita
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, 80131 Naples, Italy; (N.M.); (M.E.); (M.A.); (R.S.); (R.A.); (R.C.); (R.G.); (S.P.); (G.M.); (G.D.V.); (A.C.); (L.N.)
| | - Anna Conti
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, 80131 Naples, Italy; (N.M.); (M.E.); (M.A.); (R.S.); (R.A.); (R.C.); (R.G.); (S.P.); (G.M.); (G.D.V.); (A.C.); (L.N.)
| | - Lucio Nitsch
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, 80131 Naples, Italy; (N.M.); (M.E.); (M.A.); (R.S.); (R.A.); (R.C.); (R.G.); (S.P.); (G.M.); (G.D.V.); (A.C.); (L.N.)
- Institute of Experimental Endocrinology and Oncology “G. Salvatore”, National Research Council, 80131 Naples, Italy; (M.C.); (C.P.); (G.C.)
| | - Antonella Izzo
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, 80131 Naples, Italy; (N.M.); (M.E.); (M.A.); (R.S.); (R.A.); (R.C.); (R.G.); (S.P.); (G.M.); (G.D.V.); (A.C.); (L.N.)
- Correspondence: ; Tel.: +39-081-746-3237
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Tedeschi V, Sisalli MJ, Petrozziello T, Canzoniero LMT, Secondo A. Lysosomal calcium is modulated by STIM1/TRPML1 interaction which participates to neuronal survival during ischemic preconditioning. FASEB J 2021; 35:e21277. [PMID: 33484198 DOI: 10.1096/fj.202001886r] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 11/02/2020] [Accepted: 11/30/2020] [Indexed: 11/11/2022]
Abstract
A robust activity of the lysosomal Ca2+ channel TRPML1 is sufficient to correct cellular defects in neurodegeneration. Importantly, lysosomes are refilled by the endoplasmic reticulum (ER). However, it is unclear how TRPML1 function could be modulated by the ER. Here, we deal with this issue in rat primary cortical neurons exposed to different oxygen conditions affecting neuronal survival. Under normoxic conditions, TRPML1: (1) showed a wide distribution within soma and along neuronal processes; (2) was stimulated by the synthetic agonist ML-SA1 and the analog of its endogenous modulator, PI(3,5)P2 diC8; (3) its knockdown by siRNA strategy produced an ER Ca2+ accumulation; (4) co-localized and co-immunoprecipitated with the ER-located Ca2+ sensor stromal interacting molecule 1 (STIM1). In cortical neurons lacking STIM1, ML-SA1 and PI(3,5)P2 diC8 failed to induce Ca2+ release and, more deeply, they induced a negligible Ca2+ passage through the channel in neurons transfected with the genetically encoded Ca2+ indicator GCaMP3-ML1. Moreover, TRPML1/STIM1 interplay changed at low-oxygen conditions: both proteins were downregulated during the ischemic preconditioning (IPC) while during IPC followed by 1 hour of normoxia, at which STIM1 is upregulated, TRPML1 protein was reduced. However, during oxygen and glucose deprivation (OGD) followed by reoxygenation, TRPML1 and STIM1 proteins peaked at 8 hours of reoxygenation, when the proteins were co-immunoprecipitated and reactive oxygen species (ROS) hyperproduction was measured in cortical neurons. This may lead to a persistent TRPML1 Ca2+ release and lysosomal Ca2+ loss. Collectively, we showed a new modulation exerted by STIM1 on TRPML1 activity that may differently intervene during hypoxia to regulate organellar Ca2+ homeostasis.
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Affiliation(s)
- Valentina Tedeschi
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Naples, Italy
| | - Maria José Sisalli
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Naples, Italy
| | - Tiziana Petrozziello
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Naples, Italy
| | | | - Agnese Secondo
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Naples, Italy
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Piccialli I, Tedeschi V, Caputo L, Amato G, De Martino L, De Feo V, Secondo A, Pannaccione A. The Antioxidant Activity of Limonene Counteracts Neurotoxicity Triggered byAβ 1-42 Oligomers in Primary Cortical Neurons. Antioxidants (Basel) 2021; 10:antiox10060937. [PMID: 34207788 PMCID: PMC8227170 DOI: 10.3390/antiox10060937] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 06/01/2021] [Accepted: 06/03/2021] [Indexed: 11/16/2022] Open
Abstract
Many natural-derived compounds, including the essential oils from plants, are investigated to find new potential protective agents in several neurodegenerative disorders such as Alzheimer's disease (AD). In the present study, we tested the neuroprotective effect of limonene, one of the main components of the genus Citrus, against the neurotoxicity elicited by Aβ1-42 oligomers, currently considered a triggering factor in AD. To this aim, we assessed the acetylcholinesterase activity by Ellman's colorimetric method, the mitochondrial dehydrogenase activity by MTT assay, the nuclear morphology by Hoechst 33258, the generation of reactive oxygen species (ROS) by DCFH-DA fluorescent dye, and the electrophysiological activity of KV3.4 potassium channel subunits by patch-clamp electrophysiology. Interestingly, the monoterpene limonene showed a specific activity against acetylcholinesterase with an IC50 almost comparable to that of galantamine, used as positive control. Moreover, at the concentration of 10 µg/mL, limonene counteracted the increase of ROS production triggered by Aβ1-42 oligomers, thus preventing the upregulation of KV3.4 activity. This, in turn, prevented cell death in primary cortical neurons, showing an interesting neuroprotective profile against Aβ1-42-induced toxicity. Collectively, the present results showed that the antioxidant properties of the main component of the genus Citrus, limonene, may be useful to prevent neuronal suffering induced by Aβ1-42 oligomers preventing the hyperactivity of KV3.4.
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Affiliation(s)
- Ilaria Piccialli
- Department of Neuroscience, Division of Pharmacology, Reproductive and Odontostomatological Sciences, School of Medicine, “Federico II” University of Naples, 80131 Naples, Italy; (I.P.); (V.T.)
| | - Valentina Tedeschi
- Department of Neuroscience, Division of Pharmacology, Reproductive and Odontostomatological Sciences, School of Medicine, “Federico II” University of Naples, 80131 Naples, Italy; (I.P.); (V.T.)
| | - Lucia Caputo
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Italy; (L.C.); (G.A.); (L.D.M.); (V.D.F.)
| | - Giuseppe Amato
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Italy; (L.C.); (G.A.); (L.D.M.); (V.D.F.)
| | - Laura De Martino
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Italy; (L.C.); (G.A.); (L.D.M.); (V.D.F.)
| | - Vincenzo De Feo
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Italy; (L.C.); (G.A.); (L.D.M.); (V.D.F.)
| | - Agnese Secondo
- Department of Neuroscience, Division of Pharmacology, Reproductive and Odontostomatological Sciences, School of Medicine, “Federico II” University of Naples, 80131 Naples, Italy; (I.P.); (V.T.)
- Correspondence: (A.S.); (A.P.); Tel.: +39-0817463335 (A.P.)
| | - Anna Pannaccione
- Department of Neuroscience, Division of Pharmacology, Reproductive and Odontostomatological Sciences, School of Medicine, “Federico II” University of Naples, 80131 Naples, Italy; (I.P.); (V.T.)
- Correspondence: (A.S.); (A.P.); Tel.: +39-0817463335 (A.P.)
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26
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Gornati D, Ciccone R, Vinciguerra A, Ippati S, Pannaccione A, Petrozziello T, Pizzi E, Hassan A, Colombo E, Barbini S, Milani M, Caccavone C, Randazzo P, Muzio L, Annunziato L, Menegon A, Secondo A, Mastrangelo E, Pignataro G, Seneci P. Synthesis and Characterization of Novel Mono- and Bis-Guanyl Hydrazones as Potent and Selective ASIC1 Inhibitors Able to Reduce Brain Ischemic Insult. J Med Chem 2021; 64:8333-8353. [PMID: 34097384 DOI: 10.1021/acs.jmedchem.1c00305] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Acid-sensitive ion channels (ASICs) are sodium channels partially permeable to Ca2+ ions, listed among putative targets in central nervous system (CNS) diseases in which a pH modification occurs. We targeted novel compounds able to modulate ASIC1 and to reduce the progression of ischemic brain injury. We rationally designed and synthesized several diminazene-inspired diaryl mono- and bis-guanyl hydrazones. A correlation between their predicted docking affinities for the acidic pocket (AcP site) in chicken ASIC1 and their inhibition of homo- and heteromeric hASIC1 channels in HEK-293 cells was found. Their activity on murine ASIC1a currents and their selectivity vs mASIC2a were assessed in engineered CHO-K1 cells, highlighting a limited isoform selectivity. Neuroprotective effects were confirmed in vitro, on primary rat cortical neurons exposed to oxygen-glucose deprivation followed by reoxygenation, and in vivo, in ischemic mice. Early lead 3b, showing a good selectivity for hASIC1 in human neurons, was neuroprotective against focal ischemia induced in mice.
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Affiliation(s)
- Davide Gornati
- Chemistry Department, University of Milan, Via Golgi 19, 20133 Milan, Italy
| | - Roselia Ciccone
- Division of Pharmacology, Department of Neuroscience, School of Medicine, University of Naples Federico II, Via Pansini 5, I-80131 Naples, Italy
| | - Antonio Vinciguerra
- Division of Pharmacology, Department of Neuroscience, School of Medicine, University of Naples Federico II, Via Pansini 5, I-80131 Naples, Italy
| | - Stefania Ippati
- Experimental Imaging Center, ALEMBIC-Advanced Light and Electron Microscopy BioImaging Center, San Raffaele Scientific Institute, Via Olgettina 60, I-20132 Milan, Italy
| | - Anna Pannaccione
- Division of Pharmacology, Department of Neuroscience, School of Medicine, University of Naples Federico II, Via Pansini 5, I-80131 Naples, Italy
| | - Tiziana Petrozziello
- Division of Pharmacology, Department of Neuroscience, School of Medicine, University of Naples Federico II, Via Pansini 5, I-80131 Naples, Italy
| | - Erika Pizzi
- Experimental Imaging Center, ALEMBIC-Advanced Light and Electron Microscopy BioImaging Center, San Raffaele Scientific Institute, Via Olgettina 60, I-20132 Milan, Italy
| | - Amal Hassan
- National Research Council-Biophysics Institute (CNR-IBF), and Biosciences Department University of Milan, Via Celoria, 26, I-20133 Milan, Italy
| | - Eleonora Colombo
- Chemistry Department, University of Milan, Via Golgi 19, 20133 Milan, Italy
| | - Stefano Barbini
- Chemistry Department, University of Milan, Via Golgi 19, 20133 Milan, Italy
| | - Mario Milani
- National Research Council-Biophysics Institute (CNR-IBF), and Biosciences Department University of Milan, Via Celoria, 26, I-20133 Milan, Italy
| | - Cecilia Caccavone
- Experimental Imaging Center, ALEMBIC-Advanced Light and Electron Microscopy BioImaging Center, San Raffaele Scientific Institute, Via Olgettina 60, I-20132 Milan, Italy
| | | | - Luca Muzio
- INSPE-Institute of Experimental Neurology, San Raffaele Scientific Institute, Via Olgettina 60, I-20132 Milan, Italy
| | | | - Andrea Menegon
- Experimental Imaging Center, ALEMBIC-Advanced Light and Electron Microscopy BioImaging Center, San Raffaele Scientific Institute, Via Olgettina 60, I-20132 Milan, Italy
| | - Agnese Secondo
- Division of Pharmacology, Department of Neuroscience, School of Medicine, University of Naples Federico II, Via Pansini 5, I-80131 Naples, Italy
| | - Eloise Mastrangelo
- National Research Council-Biophysics Institute (CNR-IBF), and Biosciences Department University of Milan, Via Celoria, 26, I-20133 Milan, Italy
| | - Giuseppe Pignataro
- Division of Pharmacology, Department of Neuroscience, School of Medicine, University of Naples Federico II, Via Pansini 5, I-80131 Naples, Italy
| | - Pierfausto Seneci
- Chemistry Department, University of Milan, Via Golgi 19, 20133 Milan, Italy
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Abstract
Amyotrophic Lateral Sclerosis (ALS) is a devastating neurodegenerative disease without appropriate cure. One of the main reasons for the lack of a proper pharmacotherapy in ALS is the narrow knowledge on the molecular causes of the disease. In this respect, the identification of dysfunctional pathways in ALS is now considered a critical medical need. Among the causative factors involved in ALS, Ca2+ dysregulation is one of the most important pathogenetic mechanisms of the disease. Of note, Ca2+ dysfunction may induce, directly or indirectly, motor neuron degeneration and loss. Interestingly, both familial (fALS) and sporadic ALS (sALS) share the progressive dysregulation of Ca2+ homeostasis as a common noxious mechanism. Mechanicistically, Ca2+ dysfunction involves both plasma membrane and intracellular mechanisms, including AMPA receptor (AMPAR)-mediated excitotoxicity, voltage-gated Ca2+ channels (VGCCs) and Ca2+ transporter dysregulation, endoplasmic reticulum (ER) Ca2+ deregulation, mitochondria-associated ER membranes (MAMs) dysfunction, lysosomal Ca2+ leak, etc. Here, a comprehensive analysis of the main pathways involved in the dysregulation of Ca2+ homeostasis has been reported with the aim to focus the attention on new putative druggable targets.
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Affiliation(s)
- Valentina Tedeschi
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Naples, Italy
| | - Tiziana Petrozziello
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Naples, Italy
| | - Agnese Secondo
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Naples, Italy.
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Longobardi E, Miceli F, Secondo A, Cicatiello R, Izzo A, Tinto N, Moutton S, Tran Mau-Them F, Vitobello A, Taglialatela M. Generation of an iPSC line (UNINAi001-A) from a girl with neonatal-onset epilepsy and non-syndromic intellectual disability carrying the homozygous KCNQ3 p.PHE534ILEfs*15 variant and of an iPSC line (UNINAi002-A) from a non-carrier, unaffected brother. Stem Cell Res 2021; 53:102311. [PMID: 33799276 DOI: 10.1016/j.scr.2021.102311] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Accepted: 03/18/2021] [Indexed: 10/21/2022] Open
Abstract
Heterozygous variants in the KCNQ3 gene cause epileptic and/or developmental disorders of varying severity. Here we describe the generation of induced pluripotent stem cells (iPSCs) from a 9-year-old girl with pharmacodependent neonatal-onset epilepsy and intellectual disability who carry a homozygous single-base duplication in exon 12 of KCNQ3 (NM_004519.3: KCNQ3 c.1599dup; KCNQ3 p.PHE534ILEfs*15), and from a non-carrier brother of the proband. For iPSC generation, non-integrating episomal plasmid vectors were used to transfect fibroblasts isolated from skin biopsies. The obtained iPSC lines had a normal karyotype, showed embryonic stem cell-like morphology, expressed pluripotency markers, and possessed trilineage differentiation potential.
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Affiliation(s)
- Elena Longobardi
- Departments of Neuroscience and Molecular Medicine and Medical Biotechnology, University bf Naples "Federico II", Naples, Italy
| | - Francesco Miceli
- Departments of Neuroscience and Molecular Medicine and Medical Biotechnology, University bf Naples "Federico II", Naples, Italy
| | - Agnese Secondo
- Departments of Neuroscience and Molecular Medicine and Medical Biotechnology, University bf Naples "Federico II", Naples, Italy
| | - Rita Cicatiello
- Departments of Molecular Medicine and Medical Biotechnology, University of Naples "Federico II", Naples, Italy
| | - Antonella Izzo
- Departments of Molecular Medicine and Medical Biotechnology, University of Naples "Federico II", Naples, Italy
| | - Nadia Tinto
- Departments of Molecular Medicine and Medical Biotechnology, University of Naples "Federico II", Naples, Italy; CEINGE Advanced Biotechnology, Naples, Italy
| | - Sebastien Moutton
- UFR Des Sciences de Santé, INSERM-Université de Bourgogne UMR1231 GAD "Génétique des Anomalies du Développement", FHU-TRANSLAD, Dijon, France; Reference Center for Developmental Anomalies, Department of Medical Genetics, Dijon University Hospital, Dijon, France
| | - Frédéric Tran Mau-Them
- UFR Des Sciences de Santé, INSERM-Université de Bourgogne UMR1231 GAD "Génétique des Anomalies du Développement", FHU-TRANSLAD, Dijon, France; Unité Fonctionnelle d'Innovation diagnostique des maladies rares, FHU-TRANSLAD, CHU Dijon Bourgogne, Dijon, France
| | - Antonio Vitobello
- UFR Des Sciences de Santé, INSERM-Université de Bourgogne UMR1231 GAD "Génétique des Anomalies du Développement", FHU-TRANSLAD, Dijon, France; Unité Fonctionnelle d'Innovation diagnostique des maladies rares, FHU-TRANSLAD, CHU Dijon Bourgogne, Dijon, France
| | - Maurizio Taglialatela
- Departments of Neuroscience and Molecular Medicine and Medical Biotechnology, University bf Naples "Federico II", Naples, Italy
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29
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Piccialli I, Tedeschi V, Boscia F, Ciccone R, Casamassa A, de Rosa V, Grieco P, Secondo A, Pannaccione A. The Anemonia sulcata Toxin BDS-I Protects Astrocytes Exposed to Aβ 1-42 Oligomers by Restoring [Ca 2+] i Transients and ER Ca 2+ Signaling. Toxins (Basel) 2020; 13:20. [PMID: 33396295 PMCID: PMC7823622 DOI: 10.3390/toxins13010020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 12/22/2020] [Accepted: 12/24/2020] [Indexed: 12/28/2022] Open
Abstract
Intracellular calcium concentration ([Ca2+]i) transients in astrocytes represent a highly plastic signaling pathway underlying the communication between neurons and glial cells. However, how this important phenomenon may be compromised in Alzheimer's disease (AD) remains unexplored. Moreover, the involvement of several K+ channels, including KV3.4 underlying the fast-inactivating currents, has been demonstrated in several AD models. Here, the effect of KV3.4 modulation by the marine toxin blood depressing substance-I (BDS-I) extracted from Anemonia sulcata has been studied on [Ca2+]i transients in rat primary cortical astrocytes exposed to Aβ1-42 oligomers. We showed that: (1) primary cortical astrocytes expressing KV3.4 channels displayed [Ca2+]i transients depending on the occurrence of membrane potential spikes, (2) BDS-I restored, in a dose-dependent way, [Ca2+]i transients in astrocytes exposed to Aβ1-42 oligomers (5 µM/48 h) by inhibiting hyperfunctional KV3.4 channels, (3) BDS-I counteracted Ca2+ overload into the endoplasmic reticulum (ER) induced by Aβ1-42 oligomers, (4) BDS-I prevented the expression of the ER stress markers including active caspase 12 and GRP78/BiP in astrocytes treated with Aβ1-42 oligomers, and (5) BDS-I prevented Aβ1-42-induced reactive oxygen species (ROS) production and cell suffering measured as mitochondrial activity and lactate dehydrogenase (LDH) release. Collectively, we proposed that the marine toxin BDS-I, by inhibiting the hyperfunctional KV3.4 channels and restoring [Ca2+]i oscillation frequency, prevented Aβ1-42-induced ER stress and cell suffering in astrocytes.
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Affiliation(s)
- Ilaria Piccialli
- Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, Federico II University of Naples, 80131 Napoli, Italy; (I.P.); (V.T.); (F.B.); (R.C.); (A.C.); (V.d.R.)
| | - Valentina Tedeschi
- Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, Federico II University of Naples, 80131 Napoli, Italy; (I.P.); (V.T.); (F.B.); (R.C.); (A.C.); (V.d.R.)
| | - Francesca Boscia
- Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, Federico II University of Naples, 80131 Napoli, Italy; (I.P.); (V.T.); (F.B.); (R.C.); (A.C.); (V.d.R.)
| | - Roselia Ciccone
- Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, Federico II University of Naples, 80131 Napoli, Italy; (I.P.); (V.T.); (F.B.); (R.C.); (A.C.); (V.d.R.)
| | - Antonella Casamassa
- Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, Federico II University of Naples, 80131 Napoli, Italy; (I.P.); (V.T.); (F.B.); (R.C.); (A.C.); (V.d.R.)
| | - Valeria de Rosa
- Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, Federico II University of Naples, 80131 Napoli, Italy; (I.P.); (V.T.); (F.B.); (R.C.); (A.C.); (V.d.R.)
| | - Paolo Grieco
- Department of Pharmacy, School of Medicine, Federico II Universityof Naples, 80131 Napoli, Italy;
| | - Agnese Secondo
- Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, Federico II University of Naples, 80131 Napoli, Italy; (I.P.); (V.T.); (F.B.); (R.C.); (A.C.); (V.d.R.)
| | - Anna Pannaccione
- Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, Federico II University of Naples, 80131 Napoli, Italy; (I.P.); (V.T.); (F.B.); (R.C.); (A.C.); (V.d.R.)
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30
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Mollo N, Nitti M, Zerillo L, Faicchia D, Micillo T, Accarino R, Secondo A, Petrozziello T, Calì G, Cicatiello R, Bonfiglio F, Sarnataro V, Genesio R, Izzo A, Pinton P, Matarese G, Paladino S, Conti A, Nitsch L. Corrigendum: Pioglitazone Improves Mitochondrial Organization and Bioenergetics in Down Syndrome Cells. Front Genet 2020; 11:728. [PMID: 32849775 PMCID: PMC7398157 DOI: 10.3389/fgene.2020.00728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Accepted: 06/15/2020] [Indexed: 11/13/2022] Open
Abstract
[This corrects the article DOI: 10.3389/fgene.2019.00606.].
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Affiliation(s)
- Nunzia Mollo
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Naples, Italy
| | - Maria Nitti
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Naples, Italy.,Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, Ferrara, Italy
| | - Lucrezia Zerillo
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Naples, Italy
| | - Deriggio Faicchia
- Institute of Experimental Endocrinology and Oncology, National Research Council, Naples, Italy
| | - Teresa Micillo
- Department of Biology, University of Naples Federico II, Naples, Italy
| | - Rossella Accarino
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Naples, Italy
| | - Agnese Secondo
- Department of Neuroscience, Reproductive and Odontostomatological Sciences, University of Naples Federico II, Naples, Italy
| | - Tiziana Petrozziello
- Department of Neuroscience, Reproductive and Odontostomatological Sciences, University of Naples Federico II, Naples, Italy
| | - Gaetano Calì
- Institute of Experimental Endocrinology and Oncology, National Research Council, Naples, Italy
| | - Rita Cicatiello
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Naples, Italy
| | | | - Viviana Sarnataro
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Naples, Italy
| | - Rita Genesio
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Naples, Italy
| | - Antonella Izzo
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Naples, Italy
| | - Paolo Pinton
- Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, Ferrara, Italy
| | - Giuseppe Matarese
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Naples, Italy.,Institute of Experimental Endocrinology and Oncology, National Research Council, Naples, Italy
| | - Simona Paladino
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Naples, Italy
| | - Anna Conti
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Naples, Italy
| | - Lucio Nitsch
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Naples, Italy.,Institute of Experimental Endocrinology and Oncology, National Research Council, Naples, Italy
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La Russa D, Frisina M, Secondo A, Bagetta G, Amantea D. Modulation of Cerebral Store-operated Calcium Entry-regulatory Factor (SARAF) and Peripheral Orai1 Following Focal Cerebral Ischemia and Preconditioning in Mice. Neuroscience 2020; 441:8-21. [PMID: 32569806 DOI: 10.1016/j.neuroscience.2020.06.014] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Revised: 06/11/2020] [Accepted: 06/14/2020] [Indexed: 12/26/2022]
Abstract
Store-operated Ca2+ entry (SOCE) contributes to Ca2+ refilling of endoplasmic reticulum (ER), but also provides Ca2+ influx involved in physiological and pathological signalling functions. Upon depletion of Ca2+ store, the sensor protein stromal interaction molecule (STIM) activates Orai1, forming an ion-conducting pore highly selective for Ca2+. SOCE-associated regulatory factor (SARAF) associates with STIM1 to facilitate a slow form of Ca2+-dependent inactivation of SOCE or interacts with Orai1 to stimulate SOCE in STIM1-independent manner. We have investigated whether cerebral ischemic damage and neuroprotection conferred by ischemic preconditioning (PC) in mouse are associated with changes in the expression of the molecular components of SOCE. Ischemic PC induced by 15-min occlusion of the middle cerebral artery (MCAo) resulted in significant amelioration of histological and functional outcomes produced, 72 h later, by a more severe ischemia (1 h MCAo). Neither ischemia, nor PC affected the expression of Orai1 in the frontoparietal cortex. However, the number of Orai1-immunopositive cells, mostly corresponding to Ly-6G+ neutrophils, was significantly elevated in the blood after the ischemic insult, regardless of previous PC. The expression of Stim1 and SARAF, mainly localised in NeuN-immunopositive neurons, was reduced in the ischemic cortex. Interestingly, neuroprotection by ischemic PC prevented the reduction of SARAF expression in the lesioned cortex and this could be interpreted as a compensatory mechanism to restore ER Ca2+ refilling in neurons in the absence of STIM1. Thus, preventing SARAF downregulation may represent a pivotal mechanism implicated in neuroprotection provided by ischemic PC and should be exploited as an original target for novel stroke therapies.
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Affiliation(s)
- Daniele La Russa
- Section of Preclinical and Translational Pharmacology, Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Italy
| | - Marialaura Frisina
- Section of Preclinical and Translational Pharmacology, Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Italy
| | - Agnese Secondo
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, "Federico II" University of Naples, Italy
| | - Giacinto Bagetta
- Section of Preclinical and Translational Pharmacology, Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Italy
| | - Diana Amantea
- Section of Preclinical and Translational Pharmacology, Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Italy.
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32
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Molinaro P, Natale S, Serani A, Calabrese L, Secondo A, Tedeschi V, Valsecchi V, Pannaccione A, Scorziello A, Annunziato L. Genetically modified mice to unravel physiological and pathophysiological roles played by NCX isoforms. Cell Calcium 2020; 87:102189. [PMID: 32199207 DOI: 10.1016/j.ceca.2020.102189] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 02/27/2020] [Accepted: 03/01/2020] [Indexed: 11/30/2022]
Abstract
Since the discovery of the three isoforms of the Na+/Ca2+ exchanger, NCX1, NCX2 and NCX3 in 1990s, many studies have been devoted to identifying their specific roles in different tissues under several physiological or pathophysiological conditions. In particular, several seminal experimental works laid the foundation for better understanding gene and protein structures, tissue distribution, and regulatory functions of each antiporter isoform. On the other hand, despite the efforts in the development of specific compounds selectively targeting NCX1, NCX2 or NCX3 to test their physiological or pathophysiological roles, several drawbacks hampered the achievement of these goals. In fact, at present no isoform-specific compounds have been yet identified. Moreover, these compounds, despite their potency, possess some nonspecific actions against other ion antiporters, ion channels, and channel receptors. As a result, it is difficult to discriminate direct effects of inhibition/activation of NCX isoforms from the inhibitory or stimulatory effects exerted on other antiporters, channels, receptors, or enzymes. To overcome these difficulties, some research groups used transgenic, knock-out and knock-in mice for NCX isoforms as the most straightforward and fruitful strategy to characterize the biological role exerted by each antiporter isoform. The present review will survey the techniques used to study the roles of NCXs and the current knowledge obtained from these genetic modified mice focusing on the advantages obtained with these strategies in understanding the contribution exerted by each isoform.
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Affiliation(s)
- Pasquale Molinaro
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, 80131, Naples, Italy.
| | - Silvia Natale
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, 80131, Naples, Italy
| | - Angelo Serani
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, 80131, Naples, Italy
| | - Lucrezia Calabrese
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, 80131, Naples, Italy
| | - Agnese Secondo
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, 80131, Naples, Italy
| | - Valentina Tedeschi
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, 80131, Naples, Italy
| | - Valeria Valsecchi
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, 80131, Naples, Italy
| | - Anna Pannaccione
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, 80131, Naples, Italy
| | - Antonella Scorziello
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, 80131, Naples, Italy
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Pannaccione A, Piccialli I, Secondo A, Ciccone R, Molinaro P, Boscia F, Annunziato L. The Na +/Ca 2+exchanger in Alzheimer's disease. Cell Calcium 2020; 87:102190. [PMID: 32199208 DOI: 10.1016/j.ceca.2020.102190] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 02/26/2020] [Accepted: 03/01/2020] [Indexed: 12/19/2022]
Abstract
As a pivotal player in regulating sodium (Na+) and calcium (Ca2+) homeostasis and signalling in excitable cells, the Na+/Ca2+ exchanger (NCX) is involved in many neurodegenerative disorders in which an imbalance of intracellular Ca2+ and/or Na+ concentrations occurs, including Alzheimer's disease (AD). Although NCX has been mainly implicated in neuroprotective mechanisms counteracting Ca2+ dysregulation, several studies highlighted its role in the neuronal responses to intracellular Na+ elevation occurring in several pathophysiological conditions. Since the alteration of Na+ and Ca2+ homeostasis significantly contributes to synaptic dysfunction and neuronal loss in AD, it is of crucial importance to analyze the contribution of NCX isoforms in the homeostatic responses at neuronal and synaptic levels. Some studies found that an increase of NCX activity in brains of AD patients was correlated with neuronal survival, while other research groups found that protein levels of two NCX subtypes, NCX2 and NCX3, were modulated in parietal cortex of late stage AD brains. In particular, NCX2 positive synaptic terminals were increased in AD cohort while the number of NCX3 positive terminals were reduced. In addition, NCX1, NCX2 and NCX3 isoforms were up-regulated in those synaptic terminals accumulating amyloid-beta (Aβ), the neurotoxic peptide responsible for AD neurodegeneration. More recently, the hyperfunction of a specific NCX subtype, NCX3, has been shown to delay endoplasmic reticulum stress and apoptotic neuronal death in hippocampal neurons exposed to Aβ insult. Despite some issues about the functional role of NCX in synaptic failure and neuronal loss require further studies, these findings highlight the putative neuroprotective role of NCX in AD and open new strategies to develop new druggable targets for AD therapy.
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Affiliation(s)
- Anna Pannaccione
- Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, Federico II University of Naples, Via Pansini, 5, 80131, Naples, Italy.
| | - Ilaria Piccialli
- Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, Federico II University of Naples, Via Pansini, 5, 80131, Naples, Italy
| | - Agnese Secondo
- Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, Federico II University of Naples, Via Pansini, 5, 80131, Naples, Italy
| | - Roselia Ciccone
- Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, Federico II University of Naples, Via Pansini, 5, 80131, Naples, Italy
| | - Pasquale Molinaro
- Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, Federico II University of Naples, Via Pansini, 5, 80131, Naples, Italy
| | - Francesca Boscia
- Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, Federico II University of Naples, Via Pansini, 5, 80131, Naples, Italy
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Natale S, Anzilotti S, Petrozziello T, Ciccone R, Serani A, Calabrese L, Severino B, Frecentese F, Secondo A, Pannaccione A, Fiorino F, Cuomo O, Vinciguerra A, D'Esposito L, Sadile AG, Cabib S, Di Renzo G, Annunziato L, Molinaro P. Genetic Up-Regulation or Pharmacological Activation of the Na +/Ca 2+ Exchanger 1 (NCX1) Enhances Hippocampal-Dependent Contextual and Spatial Learning and Memory. Mol Neurobiol 2020; 57:2358-2376. [PMID: 32048166 DOI: 10.1007/s12035-020-01888-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Accepted: 01/29/2020] [Indexed: 01/23/2023]
Abstract
The Na+/Ca2+ exchanger 1 (NCX1) participates in the maintenance of neuronal Na+ and Ca2+ homeostasis, and it is highly expressed at synapse level of some brain areas involved in learning and memory processes, including the hippocampus, cortex, and amygdala. Furthermore, NCX1 increases Akt1 phosphorylation and enhances glutamate-mediated Ca2+ influx during depolarization in hippocampal and cortical neurons, two processes involved in learning and memory mechanisms. We investigated whether the modulation of NCX1 expression/activity might influence learning and memory processes. To this aim, we used a knock-in mouse overexpressing NCX1 in hippocampal, cortical, and amygdala neurons (ncx1.4over) and a newly synthesized selective NCX1 stimulating compound, named CN-PYB2. Both ncx1.4over and CN-PYB2-treated mice showed an amelioration in spatial learning performance in Barnes maze task, and in context-dependent memory consolidation after trace fear conditioning. On the other hand, these mice showed no improvement in novel object recognition task which is mainly dependent on non-spatial memory and displayed an increase in the active phosphorylated CaMKIIα levels in the hippocampus. Interestingly, both of these mice showed an increased level of context-dependent anxiety.Altogether, these results demonstrate that neuronal NCX1 participates in spatial-dependent hippocampal learning and memory processes.
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Affiliation(s)
- Silvia Natale
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatologic Sciences, School of Medicine, "Federico II" University of Naples, Via Pansini 5, 80131, Naples, Italy
| | | | - Tiziana Petrozziello
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatologic Sciences, School of Medicine, "Federico II" University of Naples, Via Pansini 5, 80131, Naples, Italy
| | - Roselia Ciccone
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatologic Sciences, School of Medicine, "Federico II" University of Naples, Via Pansini 5, 80131, Naples, Italy
| | - Angelo Serani
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatologic Sciences, School of Medicine, "Federico II" University of Naples, Via Pansini 5, 80131, Naples, Italy
| | - Lucrezia Calabrese
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatologic Sciences, School of Medicine, "Federico II" University of Naples, Via Pansini 5, 80131, Naples, Italy
| | - Beatrice Severino
- Department of Pharmacy, "Federico II" University of Naples, 80131, Naples, Italy
| | - Francesco Frecentese
- Department of Pharmacy, "Federico II" University of Naples, 80131, Naples, Italy
| | - Agnese Secondo
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatologic Sciences, School of Medicine, "Federico II" University of Naples, Via Pansini 5, 80131, Naples, Italy
| | - Anna Pannaccione
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatologic Sciences, School of Medicine, "Federico II" University of Naples, Via Pansini 5, 80131, Naples, Italy
| | - Ferdinando Fiorino
- Department of Pharmacy, "Federico II" University of Naples, 80131, Naples, Italy
| | - Ornella Cuomo
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatologic Sciences, School of Medicine, "Federico II" University of Naples, Via Pansini 5, 80131, Naples, Italy
| | - Antonio Vinciguerra
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatologic Sciences, School of Medicine, "Federico II" University of Naples, Via Pansini 5, 80131, Naples, Italy
| | - Lucia D'Esposito
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatologic Sciences, School of Medicine, "Federico II" University of Naples, Via Pansini 5, 80131, Naples, Italy
| | | | - Simona Cabib
- Department of Psychology and Centro "Daniel Bovet", Sapienza University, 00185, Rome, Italy
| | - Gianfranco Di Renzo
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatologic Sciences, School of Medicine, "Federico II" University of Naples, Via Pansini 5, 80131, Naples, Italy
| | | | - Pasquale Molinaro
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatologic Sciences, School of Medicine, "Federico II" University of Naples, Via Pansini 5, 80131, Naples, Italy.
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Annunziato L, Secondo A, Pignataro G, Scorziello A, Molinaro P. New perspectives for selective NCX activators in neurodegenerative diseases. Cell Calcium 2020; 87:102170. [PMID: 32106022 DOI: 10.1016/j.ceca.2020.102170] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 02/06/2020] [Accepted: 02/06/2020] [Indexed: 11/16/2022]
Abstract
The Na+/Ca2+ exchanger plays a relevant role in several neurological disorders, thus the pharmacological modulation of its isoforms might represent a promising strategy to ameliorate the course of some neurological pathologies including stroke, neonatal hypoxia, multiple sclerosis (MS), amyotrophic lateral sclerosis (ALS), Alzheimer Disease (AD), and spinal muscular atrophy (SMA). This review will summarize heterocyclic, peptidergic, genetic and epigenetic compounds activating or inhibiting the expression/activity of each NCX isoform. In addition, we will focus our attention on the development of new strategies aimed to ameliorate the pathophysiological conditions in which NCX isoform changes are found.
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Affiliation(s)
| | - Agnese Secondo
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatologic Sciences, School of Medicine, "Federico II" University of Naples, 80131 Naples, Italy.
| | - Giuseppe Pignataro
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatologic Sciences, School of Medicine, "Federico II" University of Naples, 80131 Naples, Italy.
| | - Antonella Scorziello
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatologic Sciences, School of Medicine, "Federico II" University of Naples, 80131 Naples, Italy.
| | - Pasquale Molinaro
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatologic Sciences, School of Medicine, "Federico II" University of Naples, 80131 Naples, Italy.
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Secondo A, Petrozziello T, Tedeschi V, Boscia F, Pannaccione A, Molinaro P, Annunziato L. Nuclear localization of NCX: Role in Ca 2+ handling and pathophysiological implications. Cell Calcium 2019; 86:102143. [PMID: 31865040 DOI: 10.1016/j.ceca.2019.102143] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Revised: 12/10/2019] [Accepted: 12/10/2019] [Indexed: 02/05/2023]
Abstract
Numerous lines of evidence indicate that nuclear calcium concentration ([Ca2+]n) may be controlled independently from cytosolic events by a local machinery. In particular, the perinuclear space between the inner nuclear membrane (INM) and the outer nuclear membrane (ONM) of the nuclear envelope (NE) likely serves as an intracellular store for Ca2+ ions. Since ONM is contiguous with the endoplasmic reticulum (ER), the perinuclear space is adjacent to the lumen of ER thus allowing a direct exchange of ions and factors between the two organelles. Moreover, INM and ONM are fused at the nuclear pore complex (NPC), which provides the only direct passageway between the nucleoplasm and cytoplasm. However, due to the presence of ion channels, exchangers and transporters, it has been generally accepted that nuclear ion fluxes may occur across ONM and INM. Within the INM, the Na+/Ca2+ exchanger (NCX) isoform 1 seems to play an important role in handling Ca2+ through the different nuclear compartments. Particularly, nuclear NCX preferentially allows local Ca2+ flowing from nucleoplasm into NE lumen thanks to the Na+ gradient created by the juxtaposed Na+/K+-ATPase. Such transfer reduces abnormal elevation of [Ca2+]n within the nucleoplasm thus modulating specific transductional pathways and providing a protective mechanism against cell death. Despite very few studies on this issue, here we discuss those making major contribution to the field, also addressing the pathophysiological implication of nuclear NCX malfunction.
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Affiliation(s)
- Agnese Secondo
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Naples, Italy.
| | - Tiziana Petrozziello
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Naples, Italy
| | - Valentina Tedeschi
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Naples, Italy
| | - Francesca Boscia
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Naples, Italy
| | - Anna Pannaccione
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Naples, Italy
| | - Pasquale Molinaro
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Naples, Italy
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de Rosa V, Secondo A, Pannaccione A, Ciccone R, Formisano L, Guida N, Crispino R, Fico A, Polishchuk R, D'Aniello A, Annunziato L, Boscia F. D-Aspartate treatment attenuates myelin damage and stimulates myelin repair. EMBO Mol Med 2019; 11:emmm.201809278. [PMID: 30559305 PMCID: PMC6328990 DOI: 10.15252/emmm.201809278] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Glutamate signaling may orchestrate oligodendrocyte precursor cell (OPC) development and myelin regeneration through the activation of glutamate receptors at OPC‐neuron synapses. D‐Aspartate is a D‐amino acid exerting modulatory actions at glutamatergic synapses. Chronic administration of D‐Aspartate has been proposed as therapeutic treatment in diseases related to myelin dysfunction and NMDA receptors hypofunction, including schizophrenia and cognitive deficits. Here, we show, by using an in vivo remyelination model, that administration of D‐Aspartate during remyelination improved motor coordination, accelerated myelin recovery, and significantly increased the number of small‐diameter myelinated axons. Chronically administered during demyelination, D‐Aspartate also attenuated myelin loss and inflammation. Interestingly, D‐Aspartate exposure stimulated OPC maturation and accelerated developmental myelination in organotypic cerebellar slices. D‐Aspartate promoting effects on OPC maturation involved the activation of glutamate transporters, AMPA and NMDA receptors, and the Na+/Ca2+ exchanger NCX3. While blocking NMDA or NCX3 significantly prevented D‐Aspartate‐induced [Ca2+]i oscillations, blocking AMPA and glutamate transporters prevented both the initial and oscillatory [Ca2+]i response as well as D‐Aspartate‐induced inward currents in OPC. Our findings reveal that D‐Aspartate treatment may represent a novel strategy for promoting myelin recovery.
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Affiliation(s)
- Valeria de Rosa
- Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, Federico II University of Naples, Naples, Italy
| | - Agnese Secondo
- Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, Federico II University of Naples, Naples, Italy
| | - Anna Pannaccione
- Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, Federico II University of Naples, Naples, Italy
| | - Roselia Ciccone
- Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, Federico II University of Naples, Naples, Italy
| | - Luigi Formisano
- Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, Federico II University of Naples, Naples, Italy
| | | | - Roberta Crispino
- Telethon Institute of Genetics and Medicine (TIGEM), Naples, Italy
| | - Annalisa Fico
- Institute of Genetics and Biophysics "A. Buzzati-Traverso", Consiglio Nazionale delle Ricerche, Naples, Italy
| | - Roman Polishchuk
- Telethon Institute of Genetics and Medicine (TIGEM), Naples, Italy
| | - Antimo D'Aniello
- Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, Federico II University of Naples, Naples, Italy
| | | | - Francesca Boscia
- Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, Federico II University of Naples, Naples, Italy
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Mollo N, Nitti M, Zerillo L, Faicchia D, Micillo T, Accarino R, Secondo A, Petrozziello T, Calì G, Cicatiello R, Bonfiglio F, Sarnataro V, Genesio R, Izzo A, Pinton P, Matarese G, Paladino S, Conti A, Nitsch L. Pioglitazone Improves Mitochondrial Organization and Bioenergetics in Down Syndrome Cells. Front Genet 2019; 10:606. [PMID: 31316549 PMCID: PMC6609571 DOI: 10.3389/fgene.2019.00606] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Accepted: 06/07/2019] [Indexed: 12/12/2022] Open
Abstract
Mitochondrial dysfunction plays a primary role in neurodevelopmental anomalies and neurodegeneration of Down syndrome (DS) subjects. For this reason, targeting mitochondrial key genes, such as PGC-1α/PPARGC1A, is emerging as a good therapeutic approach to attenuate cognitive disability in DS. After demonstrating the efficacy of the biguanide metformin (a PGC-1α activator) in a cell model of DS, we extended the study to other molecules that regulate the PGC-1α pathway acting on PPAR genes. We, therefore, treated trisomic fetal fibroblasts with different doses of pioglitazone (PGZ) and evaluated the effects on mitochondrial dynamics and function. Treatment with PGZ significantly increased mRNA and protein levels of PGC-1α. Mitochondrial network was fully restored by PGZ administration affecting the fission-fusion mitochondrial machinery. Specifically, optic atrophy 1 (OPA1) and mitofusin 1 (MFN1) were upregulated while dynamin-related protein 1 (DRP1) was downregulated. These effects, together with a significant increase of basal ATP content and oxygen consumption rate, and a significant decrease of reactive oxygen species (ROS) production, provide strong evidence of an overall improvement of mitochondria bioenergetics in trisomic cells. In conclusion, we demonstrate that PGZ is able to improve mitochondrial phenotype even at low concentrations (0.5 μM). We also speculate that a combination of drugs that target mitochondrial function might be advantageous, offering potentially higher efficacy and lower individual drug dosage.
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Affiliation(s)
- Nunzia Mollo
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Naples, Italy
| | - Maria Nitti
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Naples, Italy.,Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, Ferrara, Italy
| | - Lucrezia Zerillo
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Naples, Italy
| | - Deriggio Faicchia
- Institute of Experimental Endocrinology and Oncology, National Research Council, Naples, Italy
| | - Teresa Micillo
- Department of Biology, University of Naples Federico II, Naples, Italy
| | - Rossella Accarino
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Naples, Italy
| | - Agnese Secondo
- Department of Neuroscience, Reproductive and Odontostomatological Sciences, University of Naples Federico II, Naples, Italy
| | - Tiziana Petrozziello
- Department of Neuroscience, Reproductive and Odontostomatological Sciences, University of Naples Federico II, Naples, Italy
| | - Gaetano Calì
- Institute of Experimental Endocrinology and Oncology, National Research Council, Naples, Italy
| | - Rita Cicatiello
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Naples, Italy
| | | | - Viviana Sarnataro
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Naples, Italy
| | - Rita Genesio
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Naples, Italy
| | - Antonella Izzo
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Naples, Italy
| | - Paolo Pinton
- Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, Ferrara, Italy
| | - Giuseppe Matarese
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Naples, Italy.,Institute of Experimental Endocrinology and Oncology, National Research Council, Naples, Italy
| | - Simona Paladino
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Naples, Italy
| | - Anna Conti
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Naples, Italy
| | - Lucio Nitsch
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Naples, Italy.,Institute of Experimental Endocrinology and Oncology, National Research Council, Naples, Italy
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Secondo A, Petrozziello T, Tedeschi V, Boscia F, Vinciguerra A, Ciccone R, Pannaccione A, Molinaro P, Pignataro G, Annunziato L. ORAI1/STIM1 Interaction Intervenes in Stroke and in Neuroprotection Induced by Ischemic Preconditioning Through Store-Operated Calcium Entry. Stroke 2019; 50:1240-1249. [DOI: 10.1161/strokeaha.118.024115] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Agnese Secondo
- From the Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, Federico II University of Naples, Italy (A.S., T.P., V.T., F.B., A.V., R.C., A.P., P.M., G.P.)
| | - Tiziana Petrozziello
- From the Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, Federico II University of Naples, Italy (A.S., T.P., V.T., F.B., A.V., R.C., A.P., P.M., G.P.)
| | - Valentina Tedeschi
- From the Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, Federico II University of Naples, Italy (A.S., T.P., V.T., F.B., A.V., R.C., A.P., P.M., G.P.)
| | - Francesca Boscia
- From the Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, Federico II University of Naples, Italy (A.S., T.P., V.T., F.B., A.V., R.C., A.P., P.M., G.P.)
| | - Antonio Vinciguerra
- From the Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, Federico II University of Naples, Italy (A.S., T.P., V.T., F.B., A.V., R.C., A.P., P.M., G.P.)
| | - Roselia Ciccone
- From the Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, Federico II University of Naples, Italy (A.S., T.P., V.T., F.B., A.V., R.C., A.P., P.M., G.P.)
| | - Anna Pannaccione
- From the Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, Federico II University of Naples, Italy (A.S., T.P., V.T., F.B., A.V., R.C., A.P., P.M., G.P.)
| | - Pasquale Molinaro
- From the Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, Federico II University of Naples, Italy (A.S., T.P., V.T., F.B., A.V., R.C., A.P., P.M., G.P.)
| | - Giuseppe Pignataro
- From the Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, Federico II University of Naples, Italy (A.S., T.P., V.T., F.B., A.V., R.C., A.P., P.M., G.P.)
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Liotti A, Cosimato V, Mirra P, Calì G, Conza D, Secondo A, Luongo G, Terracciano D, Formisano P, Beguinot F, Insabato L, Ulianich L. Oleic acid promotes prostate cancer malignant phenotype via the G protein-coupled receptor FFA1/GPR40. J Cell Physiol 2018; 233:7367-7378. [PMID: 29663374 DOI: 10.1002/jcp.26572] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Accepted: 02/27/2018] [Indexed: 12/16/2022]
Abstract
Prostate cancer (PCa) is the most commonly diagnosed malignancy in men and the second leading cause of cancer-related death in industrialized countries. Epidemiologic evidence suggests that obesity promotes aggressive PCa. Recently, a family of Free Fatty Acid (FFA) receptors (FFARs) has been identified and reported to affect several crucial biological functions of tumor cells such as proliferation, invasiveness, and apoptosis. Here we report that oleic acid (OA), one of the most prevalent FFA in human plasma, increases proliferation of highly malignant PC3 and DU-145 PCa cells. Furthermore, docetaxel cytotoxic action, the first-line chemotherapeutic agent for the treatment of androgen-independent PCa, was significantly reduced in the presence of OA, when measured by the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide assay, suggesting that this FFA plays also a role in chemoresistance. OA induced intracellular calcium increase, in part due to the store operated calcium entry (SOCE), measured by a calcium imaging technique. Moreover, PI3K/Akt signaling pathway was enhanced, as revealed by increased Akt phosphorylation levels. Intriguingly, attenuating the expression of FFA1/GPR40, a receptor for long chain FFA including OA, prevented the OA-induced effects. Of relevance, we found that FFA1/GPR40 is significantly overexpressed in tissue specimens of PCa, compared to benign prostatic hyperplasia tissues, at both mRNA and protein expression level, analyzed by Real Time RT-PCR and immunofluorescence experiments, respectively. Our data suggest that OA promotes an aggressive phenotype in PCa cells via FFA1/GPR40, calcium and PI3K/Akt signaling. Thus, FFA1/GPR40, might represent a potential useful prognostic biomarker and therapeutic target for the treatment of advanced PCa.
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Affiliation(s)
- Antonietta Liotti
- Department of Translational Medical Sciences, University "Federico II", Naples, Italy
| | - Vincenzo Cosimato
- Department of Translational Medical Sciences, University "Federico II", Naples, Italy
| | - Paola Mirra
- Department of Medical and Translational Sciences of the University of Naples "Federico II" & URT dell'Istituto di Endocrinologia e Oncologia Sperimentale "Gaetano Salvatore", Consiglio Nazionale delle Ricerche, Naples, Italy
| | - Gaetano Calì
- Istituto di Endocrinologia e Oncologia Sperimentale "Gaetano Salvatore", Consiglio Nazionale delle Ricerche, Naples, Italy
| | - Domenico Conza
- Department of Medical and Translational Sciences of the University of Naples "Federico II" & URT dell'Istituto di Endocrinologia e Oncologia Sperimentale "Gaetano Salvatore", Consiglio Nazionale delle Ricerche, Naples, Italy
| | - Agnese Secondo
- Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Naples, Italy
| | - Gelsomina Luongo
- Department of Advanced Biomedical Sciences, University "Federico II", Naples, Italy
| | - Daniela Terracciano
- Department of Translational Medical Sciences, University "Federico II", Naples, Italy
| | - Pietro Formisano
- Department of Translational Medical Sciences, University "Federico II", Naples, Italy
| | - Francesco Beguinot
- Department of Medical and Translational Sciences of the University of Naples "Federico II" & URT dell'Istituto di Endocrinologia e Oncologia Sperimentale "Gaetano Salvatore", Consiglio Nazionale delle Ricerche, Naples, Italy
| | - Luigi Insabato
- Department of Advanced Biomedical Sciences, University "Federico II", Naples, Italy
| | - Luca Ulianich
- Department of Medical and Translational Sciences of the University of Naples "Federico II" & URT dell'Istituto di Endocrinologia e Oncologia Sperimentale "Gaetano Salvatore", Consiglio Nazionale delle Ricerche, Naples, Italy
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Secondo A, Bagetta G, Amantea D. On the Role of Store-Operated Calcium Entry in Acute and Chronic Neurodegenerative Diseases. Front Mol Neurosci 2018; 11:87. [PMID: 29623030 PMCID: PMC5874322 DOI: 10.3389/fnmol.2018.00087] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Accepted: 03/06/2018] [Indexed: 12/22/2022] Open
Abstract
In both excitable and non-excitable cells, calcium (Ca2+) signals are maintained by a highly integrated process involving store-operated Ca2+ entry (SOCE), namely the opening of plasma membrane (PM) Ca2+ channels following the release of Ca2+ from intracellular stores. Upon depletion of Ca2+ store, the stromal interaction molecule (STIM) senses Ca2+ level reduction and migrates from endoplasmic reticulum (ER)-like sites to the PM where it activates the channel proteins Orai and/or the transient receptor potential channels (TRPC) prompting Ca2+ refilling. Accumulating evidence suggests that SOCE dysregulation may trigger perturbation of intracellular Ca2+ signaling in neurons, glia or hematopoietic cells, thus participating to the pathogenesis of diverse neurodegenerative diseases. Under acute conditions, such as ischemic stroke, neuronal SOCE can either re-establish Ca2+ homeostasis or mediate Ca2+ overload, thus providing a non-excitotoxic mechanism of ischemic neuronal death. The dualistic role of SOCE in brain ischemia is further underscored by the evidence that it also participates to endothelial restoration and to the stabilization of intravascular thrombi. In Parkinson's disease (PD) models, loss of SOCE triggers ER stress and dysfunction/degeneration of dopaminergic neurons. Disruption of neuronal SOCE also underlies Alzheimer's disease (AD) pathogenesis, since both in genetic mouse models and in human sporadic AD brain samples, reduced SOCE contributes to synaptic loss and cognitive decline. Unlike the AD setting, in the striatum from Huntington's disease (HD) transgenic mice, an increased STIM2 expression causes elevated synaptic SOCE that was suggested to underlie synaptic loss in medium spiny neurons. Thus, pharmacological inhibition of SOCE is beneficial to synapse maintenance in HD models, whereas the same approach may be anticipated to be detrimental to cortical and hippocampal pyramidal neurons. On the other hand, up-regulation of SOCE may be beneficial during AD. These intriguing findings highlight the importance of further mechanistic studies to dissect the molecular pathways, and their corresponding targets, involved in synaptic dysfunction and neuronal loss during aging and neurodegenerative diseases.
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Affiliation(s)
- Agnese Secondo
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, University of Naples Federico II, Napoli, Italy
| | - Giacinto Bagetta
- Department of Pharmacy, Health and Nutritional Sciences, Section of Preclinical and Translational Pharmacology, University of Calabria, Cosenza, Italy
| | - Diana Amantea
- Department of Pharmacy, Health and Nutritional Sciences, Section of Preclinical and Translational Pharmacology, University of Calabria, Cosenza, Italy
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D'Errico S, Borbone N, Catalanotti B, Secondo A, Petrozziello T, Piccialli I, Pannaccione A, Costantino V, Mayol L, Piccialli G, Oliviero G. Synthesis and Biological Evaluation of a New Structural Simplified Analogue of cADPR, a Calcium-Mobilizing Secondary Messenger Firstly Isolated from Sea Urchin Eggs. Mar Drugs 2018; 16:E89. [PMID: 29534435 PMCID: PMC5867633 DOI: 10.3390/md16030089] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Revised: 03/05/2018] [Accepted: 03/07/2018] [Indexed: 12/22/2022] Open
Abstract
Herein, we reported on the synthesis of cpIPP, which is a new structurally-reduced analogue of cyclic ADP-ribose (cADPR), a potent Ca2+-releasing secondary messenger that was firstly isolated from sea urchin eggs extracts. To obtain cpIPP the "northern" ribose of cADPR was replaced by a pentyl chain and the pyrophosphate moiety by a phophono-phosphate anhydride. The effect of the presence of the new phosphono-phosphate bridge on the intracellular Ca2+ release induced by cpIPP was assessed in PC12 neuronal cells in comparison with the effect of the pyrophosphate bridge of the structurally related cyclic N1-butylinosine diphosphate analogue (cbIDP), which was previously synthesized in our laboratories, and with that of the linear precursor of cpIPP, which, unexpectedly, revealed to be the only one provided with Ca2+ release properties.
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Affiliation(s)
- Stefano D'Errico
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, via Domenico Montesano 49, 80131 Napoli, Italy.
- SYSBIO, Centre of Systems Biology, University of Milano-Bicocca, Piazza della Scienza 2, 20126 Milano, Italy.
| | - Nicola Borbone
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, via Domenico Montesano 49, 80131 Napoli, Italy.
- SYSBIO, Centre of Systems Biology, University of Milano-Bicocca, Piazza della Scienza 2, 20126 Milano, Italy.
| | - Bruno Catalanotti
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, via Domenico Montesano 49, 80131 Napoli, Italy.
| | - Agnese Secondo
- Divisione di Farmacologia, Dipartimento di Neuroscienze, Scienze Riproduttive e Odontostomatologiche, Università degli Studi di Napoli Federico II, Via Sergio Pansini 5, 80131 Napoli, Italy.
| | - Tiziana Petrozziello
- Divisione di Farmacologia, Dipartimento di Neuroscienze, Scienze Riproduttive e Odontostomatologiche, Università degli Studi di Napoli Federico II, Via Sergio Pansini 5, 80131 Napoli, Italy.
| | - Ilaria Piccialli
- Divisione di Farmacologia, Dipartimento di Neuroscienze, Scienze Riproduttive e Odontostomatologiche, Università degli Studi di Napoli Federico II, Via Sergio Pansini 5, 80131 Napoli, Italy.
| | - Anna Pannaccione
- Divisione di Farmacologia, Dipartimento di Neuroscienze, Scienze Riproduttive e Odontostomatologiche, Università degli Studi di Napoli Federico II, Via Sergio Pansini 5, 80131 Napoli, Italy.
| | - Valeria Costantino
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, via Domenico Montesano 49, 80131 Napoli, Italy.
| | - Luciano Mayol
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, via Domenico Montesano 49, 80131 Napoli, Italy.
| | - Gennaro Piccialli
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, via Domenico Montesano 49, 80131 Napoli, Italy.
- Divisione di Farmacologia, Dipartimento di Neuroscienze, Scienze Riproduttive e Odontostomatologiche, Università degli Studi di Napoli Federico II, Via Sergio Pansini 5, 80131 Napoli, Italy.
| | - Giorgia Oliviero
- SYSBIO, Centre of Systems Biology, University of Milano-Bicocca, Piazza della Scienza 2, 20126 Milano, Italy.
- Dipartimento di Biologia Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli Federico II, via Sergio Pansini 5, 80131 Napoli, Italy.
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Petrozziello T, Secondo A, Tedeschi V, Esposito A, Sisalli M, Scorziello A, Di Renzo G, Annunziato L. ApoSOD1 lacking dismutase activity neuroprotects motor neurons exposed to beta-methylamino-L-alanine through the Ca 2+/Akt/ERK1/2 prosurvival pathway. Cell Death Differ 2017; 24:511-522. [PMID: 28085149 PMCID: PMC5344211 DOI: 10.1038/cdd.2016.154] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2016] [Revised: 11/04/2016] [Accepted: 11/24/2016] [Indexed: 01/05/2023] Open
Abstract
Amyotrophic lateral sclerosis (ALS) is a severe human adult-onset neurodegenerative disease affecting lower and upper motor neurons. In >20% of cases, the familial form of ALS is caused by mutations in the gene encoding Cu,Zn-superoxide dismutase (SOD1). Interestingly, administration of wild-type SOD1 to SOD1G93A transgenic rats ameliorates motor symptoms through an unknown mechanism. Here we investigated whether the neuroprotective effects of SOD1 are due to the Ca2+-dependent activation of such prosurvival signaling pathway and not to its catalytic activity. To this aim, we also examined the mechanism of neuroprotective action of ApoSOD1, the metal-depleted state of SOD1 that lacks dismutase activity, in differentiated motor neuron-like NSC-34 cells and in primary motor neurons exposed to the cycad neurotoxin beta-methylamino-L-alanine (L-BMAA). Preincubation of ApoSOD1 and SOD1, but not of human recombinant SOD1G93A, prevented cell death in motor neurons exposed to L-BMAA. Moreover, ApoSOD1 elicited ERK1/2 and Akt phosphorylation in motor neurons through an early increase of intracellular Ca2+ concentration ([Ca2+]i). Accordingly, inhibition of ERK1/2 by siMEK1 and PD98059 counteracted ApoSOD1- and SOD1-induced neuroprotection. Similarly, transfection of the dominant-negative form of Akt in NSC-34 motor neurons and treatment with the selective PI3K inhibitor LY294002 prevented ApoSOD1- and SOD1-mediated neuroprotective effects in L-BMAA-treated motor neurons. Furthermore, ApoSOD1 and SOD1 prevented the expression of the two markers of L-BMAA-induced ER stress GRP78 and caspase-12. Collectively, our data indicate that ApoSOD1, which is devoid of any catalytic dismutase activity, exerts a neuroprotective effect through an early activation of Ca2+/Akt/ERK1/2 pro-survival pathway that, in turn, prevents ER stress in a neurotoxic model of ALS.
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Affiliation(s)
- Tiziana Petrozziello
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Via Sergio Pansini 5, Naples, Italy
| | - Agnese Secondo
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Via Sergio Pansini 5, Naples, Italy
| | - Valentina Tedeschi
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Via Sergio Pansini 5, Naples, Italy
| | - Alba Esposito
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Via Sergio Pansini 5, Naples, Italy
| | - MariaJosè Sisalli
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Via Sergio Pansini 5, Naples, Italy
| | - Antonella Scorziello
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Via Sergio Pansini 5, Naples, Italy
| | - Gianfranco Di Renzo
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Via Sergio Pansini 5, Naples, Italy
| | - Lucio Annunziato
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Via Sergio Pansini 5, Naples, Italy.,Fondazione IRCCS SDN, Naples, Italy
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Molinaro P, Sirabella R, Pignataro G, Petrozziello T, Secondo A, Boscia F, Vinciguerra A, Cuomo O, Philipson KD, De Felice M, Di Lauro R, Di Renzo G, Annunziato L. Neuronal NCX1 overexpression induces stroke resistance while knockout induces vulnerability via Akt. J Cereb Blood Flow Metab 2016; 36:1790-1803. [PMID: 26661211 PMCID: PMC5076784 DOI: 10.1177/0271678x15611913] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2015] [Accepted: 09/15/2015] [Indexed: 01/08/2023]
Abstract
Three different Na+/Ca2+ exchanger (NCX) isoforms, NCX1, NCX2, and NCX3, are expressed in brain where they play a relevant role in maintaining Na+ and Ca2+ homeostasis. Although the neuroprotective roles of NCX2 and NCX3 in stroke have been elucidated, the relevance of NCX1 is still unknown because of embryonic lethality of its knocking-out, heart dysfunctions when it is overexpressed, and the lack of selectivity in currently available drugs. To overcome these limitations we generated two conditional genetically modified mice that upon tamoxifen administration showed a selective decrease or increase of NCX1 in cortical and hippocampal neurons. Interestingly, in cortex and hippocampus NCX1 overexpression increased, where NCX1 knock-out reduced, both exchanger activity and Akt1 phosphorylation, a neuronal survival signaling. More important, mice overexpressing NCX1 showed a reduced ischemic volume and an amelioration of focal and general deficits when subjected to transient middle cerebral artery occlusion. Conversely, NCX1-knock-out mice displayed a worsening of brain damage, focal and neurological deficits with a decrease in Akt phosphorylation. These results support the idea that NCX1 overexpression/activation may represent a feasible therapeutic opportunity in stroke intervention.
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Affiliation(s)
- Pasquale Molinaro
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Naples, Italy
| | - Rossana Sirabella
- Istituto di Ricovero e Cura a Carattere Scientifico SDN, Naples, Italy
| | - Giuseppe Pignataro
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Naples, Italy
| | - Tiziana Petrozziello
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Naples, Italy
| | - Agnese Secondo
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Naples, Italy
| | - Francesca Boscia
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Naples, Italy
| | - Antonio Vinciguerra
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Naples, Italy
| | - Ornella Cuomo
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Naples, Italy
| | - Kenneth D Philipson
- Department of Physiology, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA
| | - Mario De Felice
- Department of Molecular Medicine and Medical Biotechology, "Federico II" University of Naples, Naples, Italy IRGS, Biogem S.C.A.R.L., Ariano Irpino (AV), Italy
| | - Roberto Di Lauro
- Department of Molecular Medicine and Medical Biotechology, "Federico II" University of Naples, Naples, Italy IRGS, Biogem S.C.A.R.L., Ariano Irpino (AV), Italy
| | - Gianfranco Di Renzo
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Naples, Italy
| | - Lucio Annunziato
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Naples, Italy Istituto di Ricovero e Cura a Carattere Scientifico SDN, Naples, Italy
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Staiano RI, Loffredo S, Borriello F, Iannotti FA, Piscitelli F, Orlando P, Secondo A, Granata F, Lepore MT, Fiorelli A, Varricchi G, Santini M, Triggiani M, Di Marzo V, Marone G. Human lung-resident macrophages express CB1 and CB2 receptors whose activation inhibits the release of angiogenic and lymphangiogenic factors. J Leukoc Biol 2016; 99:531-40. [PMID: 26467187 PMCID: PMC4787289 DOI: 10.1189/jlb.3hi1214-584r] [Citation(s) in RCA: 83] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2014] [Revised: 07/28/2015] [Accepted: 09/02/2015] [Indexed: 01/03/2023] Open
Abstract
Macrophages are pivotal effector cells in immune responses and tissue remodeling by producing a wide spectrum of mediators, including angiogenic and lymphangiogenic factors. Activation of cannabinoid receptor types 1 and 2 has been suggested as a new strategy to modulate angiogenesis in vitro and in vivo. We investigated whether human lung-resident macrophages express a complete endocannabinoid system by assessing their production of endocannabinoids and expression of cannabinoid receptors. Unstimulated human lung macrophage produce 2-arachidonoylglycerol,N-arachidonoyl-ethanolamine,N-palmitoyl-ethanolamine, and N-oleoyl-ethanolamine. On LPS stimulation, human lung macrophages selectively synthesize 2-arachidonoylglycerol in a calcium-dependent manner. Human lung macrophages express cannabinoid receptor types 1 and 2, and their activation induces ERK1/2 phosphorylation and reactive oxygen species generation. Cannabinoid receptor activation by the specific synthetic agonists ACEA and JWH-133 (but not the endogenous agonist 2-arachidonoylglycerol) markedly inhibits LPS-induced production of vascular endothelial growth factor-A, vascular endothelial growth factor-C, and angiopoietins and modestly affects IL-6 secretion. No significant modulation of TNF-α or IL-8/CXCL8 release was observed. The production of vascular endothelial growth factor-A by human monocyte-derived macrophages is not modulated by activation of cannabinoid receptor types 1 and 2. Given the prominent role of macrophage-assisted vascular remodeling in many tumors, we identified the expression of cannabinoid receptors in lung cancer-associated macrophages. Our results demonstrate that cannabinoid receptor activation selectively inhibits the release of angiogenic and lymphangiogenic factors from human lung macrophage but not from monocyte-derived macrophages. Activation of cannabinoid receptors on tissue-resident macrophages might be a novel strategy to modulate macrophage-assisted vascular remodeling in cancer and chronic inflammation.
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Affiliation(s)
- Rosaria I Staiano
- Departments of *Translational Medical Sciences and Center for Basic and Clinical Immunology Research and Neuroscience, Reproductive and Odontostomatological Sciences, University of Naples Federico II, Naples, Italy; Endocannabinoid Research Group, Institute of Biomolecular Chemistry, Consiglio Nazionale delle Ricerche, Pozzuoli, Naples, Italy; Endocannabinoid Research Group, Institute of Protein Biochemistry, Consiglio Nazionale delle Ricerche, Naples, Italy; Thoracic Surgery Unit, Second University of Naples, Naples, Italy; Division of Allergy and Clinical Immunology, University of Salerno, Salerno, Italy; and Consiglio Nazionale delle Ricerche Institute of Experimental Endocrinology and Oncology "G. Salvatore," Naples, Italy
| | - Stefania Loffredo
- Departments of *Translational Medical Sciences and Center for Basic and Clinical Immunology Research and Neuroscience, Reproductive and Odontostomatological Sciences, University of Naples Federico II, Naples, Italy; Endocannabinoid Research Group, Institute of Biomolecular Chemistry, Consiglio Nazionale delle Ricerche, Pozzuoli, Naples, Italy; Endocannabinoid Research Group, Institute of Protein Biochemistry, Consiglio Nazionale delle Ricerche, Naples, Italy; Thoracic Surgery Unit, Second University of Naples, Naples, Italy; Division of Allergy and Clinical Immunology, University of Salerno, Salerno, Italy; and Consiglio Nazionale delle Ricerche Institute of Experimental Endocrinology and Oncology "G. Salvatore," Naples, Italy
| | - Francesco Borriello
- Departments of *Translational Medical Sciences and Center for Basic and Clinical Immunology Research and Neuroscience, Reproductive and Odontostomatological Sciences, University of Naples Federico II, Naples, Italy; Endocannabinoid Research Group, Institute of Biomolecular Chemistry, Consiglio Nazionale delle Ricerche, Pozzuoli, Naples, Italy; Endocannabinoid Research Group, Institute of Protein Biochemistry, Consiglio Nazionale delle Ricerche, Naples, Italy; Thoracic Surgery Unit, Second University of Naples, Naples, Italy; Division of Allergy and Clinical Immunology, University of Salerno, Salerno, Italy; and Consiglio Nazionale delle Ricerche Institute of Experimental Endocrinology and Oncology "G. Salvatore," Naples, Italy
| | - Fabio Arturo Iannotti
- Departments of *Translational Medical Sciences and Center for Basic and Clinical Immunology Research and Neuroscience, Reproductive and Odontostomatological Sciences, University of Naples Federico II, Naples, Italy; Endocannabinoid Research Group, Institute of Biomolecular Chemistry, Consiglio Nazionale delle Ricerche, Pozzuoli, Naples, Italy; Endocannabinoid Research Group, Institute of Protein Biochemistry, Consiglio Nazionale delle Ricerche, Naples, Italy; Thoracic Surgery Unit, Second University of Naples, Naples, Italy; Division of Allergy and Clinical Immunology, University of Salerno, Salerno, Italy; and Consiglio Nazionale delle Ricerche Institute of Experimental Endocrinology and Oncology "G. Salvatore," Naples, Italy
| | - Fabiana Piscitelli
- Departments of *Translational Medical Sciences and Center for Basic and Clinical Immunology Research and Neuroscience, Reproductive and Odontostomatological Sciences, University of Naples Federico II, Naples, Italy; Endocannabinoid Research Group, Institute of Biomolecular Chemistry, Consiglio Nazionale delle Ricerche, Pozzuoli, Naples, Italy; Endocannabinoid Research Group, Institute of Protein Biochemistry, Consiglio Nazionale delle Ricerche, Naples, Italy; Thoracic Surgery Unit, Second University of Naples, Naples, Italy; Division of Allergy and Clinical Immunology, University of Salerno, Salerno, Italy; and Consiglio Nazionale delle Ricerche Institute of Experimental Endocrinology and Oncology "G. Salvatore," Naples, Italy
| | - Pierangelo Orlando
- Departments of *Translational Medical Sciences and Center for Basic and Clinical Immunology Research and Neuroscience, Reproductive and Odontostomatological Sciences, University of Naples Federico II, Naples, Italy; Endocannabinoid Research Group, Institute of Biomolecular Chemistry, Consiglio Nazionale delle Ricerche, Pozzuoli, Naples, Italy; Endocannabinoid Research Group, Institute of Protein Biochemistry, Consiglio Nazionale delle Ricerche, Naples, Italy; Thoracic Surgery Unit, Second University of Naples, Naples, Italy; Division of Allergy and Clinical Immunology, University of Salerno, Salerno, Italy; and Consiglio Nazionale delle Ricerche Institute of Experimental Endocrinology and Oncology "G. Salvatore," Naples, Italy
| | - Agnese Secondo
- Departments of *Translational Medical Sciences and Center for Basic and Clinical Immunology Research and Neuroscience, Reproductive and Odontostomatological Sciences, University of Naples Federico II, Naples, Italy; Endocannabinoid Research Group, Institute of Biomolecular Chemistry, Consiglio Nazionale delle Ricerche, Pozzuoli, Naples, Italy; Endocannabinoid Research Group, Institute of Protein Biochemistry, Consiglio Nazionale delle Ricerche, Naples, Italy; Thoracic Surgery Unit, Second University of Naples, Naples, Italy; Division of Allergy and Clinical Immunology, University of Salerno, Salerno, Italy; and Consiglio Nazionale delle Ricerche Institute of Experimental Endocrinology and Oncology "G. Salvatore," Naples, Italy
| | - Francescopaolo Granata
- Departments of *Translational Medical Sciences and Center for Basic and Clinical Immunology Research and Neuroscience, Reproductive and Odontostomatological Sciences, University of Naples Federico II, Naples, Italy; Endocannabinoid Research Group, Institute of Biomolecular Chemistry, Consiglio Nazionale delle Ricerche, Pozzuoli, Naples, Italy; Endocannabinoid Research Group, Institute of Protein Biochemistry, Consiglio Nazionale delle Ricerche, Naples, Italy; Thoracic Surgery Unit, Second University of Naples, Naples, Italy; Division of Allergy and Clinical Immunology, University of Salerno, Salerno, Italy; and Consiglio Nazionale delle Ricerche Institute of Experimental Endocrinology and Oncology "G. Salvatore," Naples, Italy
| | - Maria Teresa Lepore
- Departments of *Translational Medical Sciences and Center for Basic and Clinical Immunology Research and Neuroscience, Reproductive and Odontostomatological Sciences, University of Naples Federico II, Naples, Italy; Endocannabinoid Research Group, Institute of Biomolecular Chemistry, Consiglio Nazionale delle Ricerche, Pozzuoli, Naples, Italy; Endocannabinoid Research Group, Institute of Protein Biochemistry, Consiglio Nazionale delle Ricerche, Naples, Italy; Thoracic Surgery Unit, Second University of Naples, Naples, Italy; Division of Allergy and Clinical Immunology, University of Salerno, Salerno, Italy; and Consiglio Nazionale delle Ricerche Institute of Experimental Endocrinology and Oncology "G. Salvatore," Naples, Italy
| | - Alfonso Fiorelli
- Departments of *Translational Medical Sciences and Center for Basic and Clinical Immunology Research and Neuroscience, Reproductive and Odontostomatological Sciences, University of Naples Federico II, Naples, Italy; Endocannabinoid Research Group, Institute of Biomolecular Chemistry, Consiglio Nazionale delle Ricerche, Pozzuoli, Naples, Italy; Endocannabinoid Research Group, Institute of Protein Biochemistry, Consiglio Nazionale delle Ricerche, Naples, Italy; Thoracic Surgery Unit, Second University of Naples, Naples, Italy; Division of Allergy and Clinical Immunology, University of Salerno, Salerno, Italy; and Consiglio Nazionale delle Ricerche Institute of Experimental Endocrinology and Oncology "G. Salvatore," Naples, Italy
| | - Gilda Varricchi
- Departments of *Translational Medical Sciences and Center for Basic and Clinical Immunology Research and Neuroscience, Reproductive and Odontostomatological Sciences, University of Naples Federico II, Naples, Italy; Endocannabinoid Research Group, Institute of Biomolecular Chemistry, Consiglio Nazionale delle Ricerche, Pozzuoli, Naples, Italy; Endocannabinoid Research Group, Institute of Protein Biochemistry, Consiglio Nazionale delle Ricerche, Naples, Italy; Thoracic Surgery Unit, Second University of Naples, Naples, Italy; Division of Allergy and Clinical Immunology, University of Salerno, Salerno, Italy; and Consiglio Nazionale delle Ricerche Institute of Experimental Endocrinology and Oncology "G. Salvatore," Naples, Italy
| | - Mario Santini
- Departments of *Translational Medical Sciences and Center for Basic and Clinical Immunology Research and Neuroscience, Reproductive and Odontostomatological Sciences, University of Naples Federico II, Naples, Italy; Endocannabinoid Research Group, Institute of Biomolecular Chemistry, Consiglio Nazionale delle Ricerche, Pozzuoli, Naples, Italy; Endocannabinoid Research Group, Institute of Protein Biochemistry, Consiglio Nazionale delle Ricerche, Naples, Italy; Thoracic Surgery Unit, Second University of Naples, Naples, Italy; Division of Allergy and Clinical Immunology, University of Salerno, Salerno, Italy; and Consiglio Nazionale delle Ricerche Institute of Experimental Endocrinology and Oncology "G. Salvatore," Naples, Italy
| | - Massimo Triggiani
- Departments of *Translational Medical Sciences and Center for Basic and Clinical Immunology Research and Neuroscience, Reproductive and Odontostomatological Sciences, University of Naples Federico II, Naples, Italy; Endocannabinoid Research Group, Institute of Biomolecular Chemistry, Consiglio Nazionale delle Ricerche, Pozzuoli, Naples, Italy; Endocannabinoid Research Group, Institute of Protein Biochemistry, Consiglio Nazionale delle Ricerche, Naples, Italy; Thoracic Surgery Unit, Second University of Naples, Naples, Italy; Division of Allergy and Clinical Immunology, University of Salerno, Salerno, Italy; and Consiglio Nazionale delle Ricerche Institute of Experimental Endocrinology and Oncology "G. Salvatore," Naples, Italy
| | - Vincenzo Di Marzo
- Departments of *Translational Medical Sciences and Center for Basic and Clinical Immunology Research and Neuroscience, Reproductive and Odontostomatological Sciences, University of Naples Federico II, Naples, Italy; Endocannabinoid Research Group, Institute of Biomolecular Chemistry, Consiglio Nazionale delle Ricerche, Pozzuoli, Naples, Italy; Endocannabinoid Research Group, Institute of Protein Biochemistry, Consiglio Nazionale delle Ricerche, Naples, Italy; Thoracic Surgery Unit, Second University of Naples, Naples, Italy; Division of Allergy and Clinical Immunology, University of Salerno, Salerno, Italy; and Consiglio Nazionale delle Ricerche Institute of Experimental Endocrinology and Oncology "G. Salvatore," Naples, Italy
| | - Gianni Marone
- Departments of *Translational Medical Sciences and Center for Basic and Clinical Immunology Research and Neuroscience, Reproductive and Odontostomatological Sciences, University of Naples Federico II, Naples, Italy; Endocannabinoid Research Group, Institute of Biomolecular Chemistry, Consiglio Nazionale delle Ricerche, Pozzuoli, Naples, Italy; Endocannabinoid Research Group, Institute of Protein Biochemistry, Consiglio Nazionale delle Ricerche, Naples, Italy; Thoracic Surgery Unit, Second University of Naples, Naples, Italy; Division of Allergy and Clinical Immunology, University of Salerno, Salerno, Italy; and Consiglio Nazionale delle Ricerche Institute of Experimental Endocrinology and Oncology "G. Salvatore," Naples, Italy
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Mahal A, D'Errico S, Borbone N, Pinto B, Secondo A, Costantino V, Tedeschi V, Oliviero G, Piccialli V, Piccialli G. Synthesis of cyclic N (1)-pentylinosine phosphate, a new structurally reduced cADPR analogue with calcium-mobilizing activity on PC12 cells. Beilstein J Org Chem 2015; 11:2689-2695. [PMID: 26877790 PMCID: PMC4734301 DOI: 10.3762/bjoc.11.289] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Accepted: 12/04/2015] [Indexed: 12/28/2022] Open
Abstract
Cyclic N1-pentylinosine monophosphate (cpIMP), a novel simplified inosine derivative of cyclic ADP-ribose (cADPR) in which the N1-pentyl chain and the monophosphate group replace the northern ribose and the pyrophosphate moieties, respectively, was synthesized. The role played by the position of the phosphate group in the key cyclization step, which consists in the formation of a phosphodiester bond, was thoroughly investigated. We have also examined the influence of the phosphate bridge on the ability of cpIMP to mobilize Ca2+ in PC12 neuronal cells in comparison with the pyrophosphate bridge present in the cyclic N1-pentylinosine diphosphate analogue (cpIDP) previously synthesized in our laboratories. The preliminary biological tests indicated that cpIMP and cpIDP induce a rapid increase of intracellular Ca2+ concentration in PC12 neuronal cells.
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Affiliation(s)
- Ahmed Mahal
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, Via D. Montesano 49, 80131, Napoli, Italy
| | - Stefano D'Errico
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, Via D. Montesano 49, 80131, Napoli, Italy
| | - Nicola Borbone
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, Via D. Montesano 49, 80131, Napoli, Italy
| | - Brunella Pinto
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, Via D. Montesano 49, 80131, Napoli, Italy
| | - Agnese Secondo
- Dipartimento di Neuroscienze e Scienze Riproduttive ed Odontostomatologiche, Università degli Studi di Napoli Federico II, Via Pansini 5, 80131 Napoli, Italy
| | - Valeria Costantino
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, Via D. Montesano 49, 80131, Napoli, Italy
| | - Valentina Tedeschi
- Dipartimento di Neuroscienze e Scienze Riproduttive ed Odontostomatologiche, Università degli Studi di Napoli Federico II, Via Pansini 5, 80131 Napoli, Italy
| | - Giorgia Oliviero
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, Via D. Montesano 49, 80131, Napoli, Italy
| | - Vincenzo Piccialli
- Dipartimento di Scienze Chimiche, Università degli Studi di Napoli Federico II, Napoli, Italy
| | - Gennaro Piccialli
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, Via D. Montesano 49, 80131, Napoli, Italy.,Institute of Protein Biochemistry, National Council Research of Italy, Via Pietro Castellino 111, 80131 Napoli, Italy
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Guida N, Laudati G, Anzilotti S, Secondo A, Montuori P, Di Renzo G, Canzoniero LMT, Formisano L. Resveratrol via sirtuin-1 downregulates RE1-silencing transcription factor (REST) expression preventing PCB-95-induced neuronal cell death. Toxicol Appl Pharmacol 2015; 288:387-98. [PMID: 26307266 DOI: 10.1016/j.taap.2015.08.010] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Revised: 08/12/2015] [Accepted: 08/14/2015] [Indexed: 11/16/2022]
Abstract
Resveratrol (3,5,4'-trihydroxystilbene) (RSV), a polyphenol widely present in plants, exerts a neuroprotective function in several neurological conditions; it is an activator of class III histone deacetylase sirtuin1 (SIRT1), a crucial regulator in the pathophysiology of neurodegenerative diseases. By contrast, the RE1-silencing transcription factor (REST) is involved in the neurotoxic effects following exposure to polychlorinated biphenyl (PCB) mixture A1254. The present study investigated the effects of RSV-induced activation of SIRT1 on REST expression in SH-SY5Y cells. Further, we investigated the possible relationship between the non-dioxin-like (NDL) PCB-95 and REST through SIRT1 to regulate neuronal death in rat cortical neurons. Our results revealed that RSV significantly decreased REST gene and protein levels in a dose- and time-dependent manner. Interestingly, overexpression of SIRT1 reduced REST expression, whereas EX-527, an inhibitor of SIRT1, increased REST expression and blocked RSV-induced REST downregulation. These results suggest that RSV downregulates REST through SIRT1. In addition, RSV enhanced activator protein 1 (AP-1) transcription factor c-Jun expression and its binding to the REST promoter gene. Indeed, c-Jun knockdown reverted RSV-induced REST downregulation. Intriguingly, in SH-SY5Y cells and rat cortical neurons the NDL PCB-95 induced necrotic cell death in a concentration-dependent manner by increasing REST mRNA and protein expression. In addition, SIRT1 knockdown blocked RSV-induced neuroprotection in rat cortical neurons treated with PCB-95. Collectively, these results indicate that RSV via SIRT1 activates c-Jun, thereby reducing REST expression in SH-SY5Y cells under physiological conditions and blocks PCB-95-induced neuronal cell death by activating the same SIRT1/c-Jun/REST pathway.
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Affiliation(s)
| | - Giusy Laudati
- Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, "Federico II" University of Naples, Via Pansini, 5, 80131 Naples, Italy
| | | | - Agnese Secondo
- Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, "Federico II" University of Naples, Via Pansini, 5, 80131 Naples, Italy
| | - Paolo Montuori
- Department of Public Health, 'Federico II' University of Naples, Naples, Italy
| | - Gianfranco Di Renzo
- Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, "Federico II" University of Naples, Via Pansini, 5, 80131 Naples, Italy
| | - Lorella M T Canzoniero
- Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, "Federico II" University of Naples, Via Pansini, 5, 80131 Naples, Italy; Division of Pharmacology, Department of Science and Technology, University of Sannio, Via Port'Arsa 11, 82100 Benevento, Italy
| | - Luigi Formisano
- Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, "Federico II" University of Naples, Via Pansini, 5, 80131 Naples, Italy; Division of Pharmacology, Department of Science and Technology, University of Sannio, Via Port'Arsa 11, 82100 Benevento, Italy.
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Secondo A, Pignataro G, Ambrosino P, Pannaccione A, Molinaro P, Boscia F, Cantile M, Cuomo O, Esposito A, Sisalli MJ, Scorziello A, Guida N, Anzilotti S, Fiorino F, Severino B, Santagada V, Caliendo G, Di Renzo G, Annunziato L. Pharmacological characterization of the newly synthesized 5-amino-N-butyl-2-(4-ethoxyphenoxy)-benzamide hydrochloride (BED) as a potent NCX3 inhibitor that worsens anoxic injury in cortical neurons, organotypic hippocampal cultures, and ischemic brain. ACS Chem Neurosci 2015; 6:1361-70. [PMID: 25942323 DOI: 10.1021/acschemneuro.5b00043] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
The Na(+)/Ca(2+) exchanger (NCX), a 10-transmembrane domain protein mainly involved in the regulation of intracellular Ca(2+) homeostasis, plays a crucial role in cerebral ischemia. In the present paper, we characterized the effect of the newly synthesized compound 5-amino-N-butyl-2-(4-ethoxyphenoxy)-benzamide hydrochloride (BED) on the activity of the three NCX isoforms and on the evolution of cerebral ischemia. BED inhibited NCX isoform 3 (NCX3) activity (IC50 = 1.9 nM) recorded with the help of single-cell microflorimetry, (45)Ca(2+) radiotracer fluxes, and patch-clamp in whole-cell configuration. Furthermore, this drug displayed negligible effect on NCX2, the other isoform expressed within the CNS, and it failed to modulate the ubiquitously expressed NCX1 isoform. Concerning the molecular site of action, the use of chimera strategy and deletion mutagenesis showed that α1 and α2 repeats of NCX3 represented relevant molecular determinants for BED inhibitory action, whereas the intracellular regulatory f-loop was not involved. At 10 nM, BED worsened the damage induced by oxygen/glucose deprivation (OGD) followed by reoxygenation in cortical neurons through a dysregulation of [Ca(2+)]i. Furthermore, at the same concentration, BED significantly enhanced cell death in CA3 subregion of hippocampal organotypic slices exposed to OGD and aggravated infarct injury after transient middle cerebral artery occlusion in mice. These results showed that the newly synthesized 5-amino-N-butyl-2-(4-ethoxyphenoxy)-benzamide hydrochloride is one of the most potent inhibitor of NCX3 so far identified, representing an useful tool to dissect the role played by NCX3 in the control of Ca(2+) homeostasis under physiological and pathological conditions.
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Affiliation(s)
- Agnese Secondo
- Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, “Federico II” University of Naples, Via Pansini 5, 80131 Naples, Italy
| | - Giuseppe Pignataro
- Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, “Federico II” University of Naples, Via Pansini 5, 80131 Naples, Italy
| | - Paolo Ambrosino
- Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, “Federico II” University of Naples, Via Pansini 5, 80131 Naples, Italy
| | - Anna Pannaccione
- Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, “Federico II” University of Naples, Via Pansini 5, 80131 Naples, Italy
| | - Pasquale Molinaro
- Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, “Federico II” University of Naples, Via Pansini 5, 80131 Naples, Italy
| | - Francesca Boscia
- Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, “Federico II” University of Naples, Via Pansini 5, 80131 Naples, Italy
| | - Maria Cantile
- Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, “Federico II” University of Naples, Via Pansini 5, 80131 Naples, Italy
| | - Ornella Cuomo
- Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, “Federico II” University of Naples, Via Pansini 5, 80131 Naples, Italy
| | - Alba Esposito
- Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, “Federico II” University of Naples, Via Pansini 5, 80131 Naples, Italy
| | - Maria Josè Sisalli
- Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, “Federico II” University of Naples, Via Pansini 5, 80131 Naples, Italy
| | - Antonella Scorziello
- Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, “Federico II” University of Naples, Via Pansini 5, 80131 Naples, Italy
| | | | | | | | | | | | | | - Gianfranco Di Renzo
- Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, “Federico II” University of Naples, Via Pansini 5, 80131 Naples, Italy
| | - Lucio Annunziato
- Department of Neuroscience, Reproductive and Odontostomatological Sciences, School of Medicine, “Federico II” University of Naples, Via Pansini 5, 80131 Naples, Italy
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49
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Cocco S, Secondo A, Del Viscovo A, Procaccini C, Formisano L, Franco C, Esposito A, Scorziello A, Matarese G, Di Renzo G, Canzoniero LMT. Polychlorinated Biphenyls Induce Mitochondrial Dysfunction in SH-SY5Y Neuroblastoma Cells. PLoS One 2015; 10:e0129481. [PMID: 26101884 PMCID: PMC4477897 DOI: 10.1371/journal.pone.0129481] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2014] [Accepted: 05/09/2015] [Indexed: 12/02/2022] Open
Abstract
Chronic exposure to polychlorinated biphenyls (PCBs), ubiquitous environmental contaminants, can adversely affect the development and function of the nervous system. Here we evaluated the effect of PCB exposure on mitochondrial function using the PCB mixture Aroclor-1254 (A1254) in SH-SY5Y neuroblastoma cells. A 6-hour exposure to A1254 (5 μg/ml) reduced cellular ATP production by 45%±7, and mitochondrial membrane potential, detected by TMRE, by 49%±7. Consistently, A1254 significantly decreased oxidative phosphorylation and aerobic glycolysis measured by extracellular flux analyzer. Furthermore, the activity of mitochondrial protein complexes I, II, and IV, but not V (ATPase), measured by BN-PAGE technique, was significantly reduced after 6-hour exposure to A1254. The addition of pyruvic acid during exposure to A1254 significantly prevent A1254-induced cell injury, restoring resting mitochondrial membrane potential, ATP levels, oxidative phosphorylation and aerobic glycolysis. Furthermore, pyruvic acid significantly preserved the activity of mitochondrial complexes I, II and IV and increased basal activity of complex V. Collectively, the present results indicate that the neurotoxicity of A1254 depends on the impairment of oxidative phosphorylation, aerobic glycolysis, and mitochondrial complexes I, II, and IV activity and it was counteracted by pyruvic acid.
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Affiliation(s)
- Stefania Cocco
- Division of Pharmacology, Dept. of Neuroscience and Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Via Sergio Pansini 5, Naples, 80131, Italy
| | - Agnese Secondo
- Division of Pharmacology, Dept. of Neuroscience and Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Via Sergio Pansini 5, Naples, 80131, Italy
| | - Adelaide Del Viscovo
- Dept. of Science and Technology-DST, University of Sannio, via Port'Arsa 11, 82100 Benevento, Italy
| | - Claudio Procaccini
- Laboratorio di Immunologia, Istituto di Endocrinologia e Oncologia Sperimentale, Consiglio Nazionale delle Ricerche (IEOS-CNR), c/o Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università di Napoli "Federico II", Napoli, Italy
| | - Luigi Formisano
- Dept. of Science and Technology-DST, University of Sannio, via Port'Arsa 11, 82100 Benevento, Italy
| | - Cristina Franco
- Division of Pharmacology, Dept. of Neuroscience and Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Via Sergio Pansini 5, Naples, 80131, Italy
| | - Alba Esposito
- Division of Pharmacology, Dept. of Neuroscience and Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Via Sergio Pansini 5, Naples, 80131, Italy
| | - Antonella Scorziello
- Division of Pharmacology, Dept. of Neuroscience and Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Via Sergio Pansini 5, Naples, 80131, Italy
| | - Giuseppe Matarese
- Dipartimento di Medicina e Chirurgia, Università di Salerno, Baronissi Campus, Baronissi, Salerno, Italy; IRCCS MultiMedica, Milano, Italy
| | - Gianfranco Di Renzo
- Division of Pharmacology, Dept. of Neuroscience and Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Via Sergio Pansini 5, Naples, 80131, Italy
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50
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Secondo A, Esposito A, Sirabella R, Boscia F, Pannaccione A, Molinaro P, Cantile M, Ciccone R, Sisalli MJ, Scorziello A, Di Renzo G, Annunziato L. Involvement of the Na+/Ca2+ exchanger isoform 1 (NCX1) in neuronal growth factor (NGF)-induced neuronal differentiation through Ca2+-dependent Akt phosphorylation. J Biol Chem 2014; 290:1319-31. [PMID: 25416782 DOI: 10.1074/jbc.m114.555516] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
NGF induces neuronal differentiation by modulating [Ca(2+)]i. However, the role of the three isoforms of the main Ca(2+)-extruding system, the Na(+)/Ca(2+) exchanger (NCX), in NGF-induced differentiation remains unexplored. We investigated whether NCX1, NCX2, and NCX3 isoforms could play a relevant role in neuronal differentiation through the modulation of [Ca(2+)]i and the Akt pathway. NGF caused progressive neurite elongation; a significant increase of the well known marker of growth cones, GAP-43; and an enhancement of endoplasmic reticulum (ER) Ca(2+) content and of Akt phosphorylation through an early activation of ERK1/2. Interestingly, during NGF-induced differentiation, the NCX1 protein level increased, NCX3 decreased, and NCX2 remained unaffected. At the same time, NCX total activity increased. Moreover, NCX1 colocalized and coimmunoprecipitated with GAP-43, and NCX1 silencing prevented NGF-induced effects on GAP-43 expression, Akt phosphorylation, and neurite outgrowth. On the other hand, the overexpression of its neuronal splicing isoform, NCX1.4, even in the absence of NGF, induced an increase in Akt phosphorylation and GAP-43 protein expression. Interestingly, tetrodotoxin-sensitive Na(+) currents and 1,3-benzenedicarboxylic acid, 4,4'-[1,4,10-trioxa-7,13-diazacyclopentadecane-7,13-diylbis(5-methoxy-6,12-benzofurandiyl)]bis-, tetrakis[(acetyloxy)methyl] ester-detected [Na(+)]i significantly increased in cells overexpressing NCX1.4 as well as ER Ca(2+) content. This latter effect was prevented by tetrodotoxin. Furthermore, either the [Ca(2+)]i chelator(1,2-bis(o-aminophenoxy)ethane-N,N,N',N'-tetraacetic acid) (BAPTA-AM) or the PI3K inhibitor LY 294002 prevented Akt phosphorylation and GAP-43 protein expression rise in NCX1.4 overexpressing cells. Moreover, in primary cortical neurons, NCX1 silencing prevented Akt phosphorylation, GAP-43 and MAP2 overexpression, and neurite elongation. Collectively, these data show that NCX1 participates in neuronal differentiation through the modulation of ER Ca(2+) content and PI3K signaling.
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Affiliation(s)
- Agnese Secondo
- From the Department of Neuroscience and Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Via Sergio Pansini 5, Naples 80131, Italy and
| | - Alba Esposito
- From the Department of Neuroscience and Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Via Sergio Pansini 5, Naples 80131, Italy and
| | - Rossana Sirabella
- the Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) SDN, Naples 80143, Italy
| | - Francesca Boscia
- From the Department of Neuroscience and Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Via Sergio Pansini 5, Naples 80131, Italy and
| | - Anna Pannaccione
- From the Department of Neuroscience and Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Via Sergio Pansini 5, Naples 80131, Italy and
| | - Pasquale Molinaro
- From the Department of Neuroscience and Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Via Sergio Pansini 5, Naples 80131, Italy and
| | - Maria Cantile
- From the Department of Neuroscience and Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Via Sergio Pansini 5, Naples 80131, Italy and
| | - Roselia Ciccone
- From the Department of Neuroscience and Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Via Sergio Pansini 5, Naples 80131, Italy and
| | - Maria Josè Sisalli
- From the Department of Neuroscience and Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Via Sergio Pansini 5, Naples 80131, Italy and
| | - Antonella Scorziello
- From the Department of Neuroscience and Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Via Sergio Pansini 5, Naples 80131, Italy and
| | - Gianfranco Di Renzo
- From the Department of Neuroscience and Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Via Sergio Pansini 5, Naples 80131, Italy and
| | - Lucio Annunziato
- From the Department of Neuroscience and Reproductive and Odontostomatological Sciences, School of Medicine, "Federico II" University of Naples, Via Sergio Pansini 5, Naples 80131, Italy and the Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) SDN, Naples 80143, Italy
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