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Di Giuseppe F, Ricci-Vitiani L, Pallini R, Di Pietro R, Di Iorio P, Ascani G, Ciccarelli R, Angelucci S. Changes Induced by P2X7 Receptor Stimulation of Human Glioblastoma Stem Cells in the Proteome of Extracellular Vesicles Isolated from Their Secretome. Cells 2024; 13:571. [PMID: 38607010 PMCID: PMC11011151 DOI: 10.3390/cells13070571] [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: 03/01/2024] [Revised: 03/19/2024] [Accepted: 03/21/2024] [Indexed: 04/13/2024] Open
Abstract
Extracellular vesicles (EVs) are secreted from many tumors, including glioblastoma multiforme (GBM), the most common and lethal brain tumor in adults, which shows high resistance to current therapies and poor patient prognosis. Given the high relevance of the information provided by cancer cell secretome, we performed a proteomic analysis of microvesicles (MVs) and exosomes (EXOs) released from GBM-derived stem cells (GSCs). The latter, obtained from the brain of GBM patients, expressed P2X7 receptors (P2X7Rs), which positively correlate with GBM growth and invasiveness. P2X7R stimulation of GSCs caused significant changes in the EV content, mostly ex novo inducing or upregulating the expression of proteins related to cytoskeleton reorganization, cell motility/spreading, energy supply, protection against oxidative stress, chromatin remodeling, and transcriptional regulation. Most of the induced/upregulated proteins have already been identified as GBM diagnostic/prognostic factors, while others have only been reported in peripheral tumors. Our findings indicate that P2X7R stimulation enhances the transport and, therefore, possible intercellular exchange of GBM aggressiveness-increasing proteins by GSC-derived EVs. Thus, P2X7Rs could be considered a new druggable target of human GBM, although these data need to be confirmed in larger experimental sets.
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Affiliation(s)
- Fabrizio Di Giuseppe
- Department of Innovative Technologies in Medicine and Dentistry, ‘G. d’Annunzio’ University of Chieti-Pescara, Via Vestini 31, 66100 Chieti, Italy;
- Center for Advanced Studies and Technology (CAST), ‘G d’Annunzio’ University of Chieti-Pescara, Via L Polacchi 13, 66100 Chieti, Italy;
- Stem TeCh Group, Via L Polacchi 13, 66100 Chieti, Italy
| | - Lucia Ricci-Vitiani
- Department of Medical, Oral and Biotechnological Sciences, ‘G d’Annunzio’ University of Chieti-Pescara, Via Vestini 31, 66100 Chieti, Italy;
| | - Roberto Pallini
- Department of Oncology and Molecular Medicine, Istituto Superiore di Sanità, Via Regina Elena 299, 00161 Rome, Italy;
| | - Roberta Di Pietro
- Institute of Neurosurgery, Università Cattolica del Sacro Cuore, Largo Agostino Gemelli 8, 00168 Rome, Italy;
| | - Patrizia Di Iorio
- Department of Medicine and Aging Sciences, ‘G. d’Annunzio’ University of Chieti-Pescara, Via Vestini 31, 66100 Chieti, Italy;
| | - Giuliano Ascani
- UOSD Maxillofacial Surgery, Azienda Sanitaria Locale di Pescara, Via Renato Paolini 47, 65124 Pescara, Italy;
| | - Renata Ciccarelli
- Center for Advanced Studies and Technology (CAST), ‘G d’Annunzio’ University of Chieti-Pescara, Via L Polacchi 13, 66100 Chieti, Italy;
| | - Stefania Angelucci
- Department of Innovative Technologies in Medicine and Dentistry, ‘G. d’Annunzio’ University of Chieti-Pescara, Via Vestini 31, 66100 Chieti, Italy;
- Center for Advanced Studies and Technology (CAST), ‘G d’Annunzio’ University of Chieti-Pescara, Via L Polacchi 13, 66100 Chieti, Italy;
- Stem TeCh Group, Via L Polacchi 13, 66100 Chieti, Italy
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Zuccarini M, Giuliani P, Buccella S, Di Liberto V, Mudò G, Belluardo N, Carluccio M, Rossini M, Condorelli DF, Rathbone MP, Caciagli F, Ciccarelli R, Di Iorio P. Retraction Note: Modulation of the TGF-β1-induced epithelial to mesenchymal transition (EMT) mediated by P1 and P2 purine receptors in MDCK cells. Purinergic Signal 2023; 19:711. [PMID: 37773485 PMCID: PMC10754805 DOI: 10.1007/s11302-023-09971-w] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/01/2023] Open
Affiliation(s)
- Mariachiara Zuccarini
- Department of Medical and Oral Sciences and Biotechnologies, "G.d'Annunzio" University of Chieti-Pescara, Chieti, Italy.
| | - Patricia Giuliani
- Department of Medical and Oral Sciences and Biotechnologies, "G.d'Annunzio" University of Chieti-Pescara, Chieti, Italy
| | - Silvana Buccella
- Department of Medical and Oral Sciences and Biotechnologies, "G.d'Annunzio" University of Chieti-Pescara, Chieti, Italy
| | - Valentina Di Liberto
- Department of Experimental Biomedicine and Clinical Neurosciences, University of Palermo, Palermo, Italy
| | - Giuseppa Mudò
- Department of Experimental Biomedicine and Clinical Neurosciences, University of Palermo, Palermo, Italy
| | - Natale Belluardo
- Department of Experimental Biomedicine and Clinical Neurosciences, University of Palermo, Palermo, Italy
| | - Marzia Carluccio
- Department of Medical and Oral Sciences and Biotechnologies, "G.d'Annunzio" University of Chieti-Pescara, Chieti, Italy
| | - Margherita Rossini
- Department of Medical and Oral Sciences and Biotechnologies, "G.d'Annunzio" University of Chieti-Pescara, Chieti, Italy
| | | | - Michel Piers Rathbone
- Department of Medicine, Division of Neurology, McMaster University, Hamilton, ON, Canada
| | - Francesco Caciagli
- Department of Medical and Oral Sciences and Biotechnologies, "G.d'Annunzio" University of Chieti-Pescara, Chieti, Italy
| | - Renata Ciccarelli
- Department of Medical and Oral Sciences and Biotechnologies, "G.d'Annunzio" University of Chieti-Pescara, Chieti, Italy
| | - Patrizia Di Iorio
- Department of Medical and Oral Sciences and Biotechnologies, "G.d'Annunzio" University of Chieti-Pescara, Chieti, Italy
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Zuccarini M, Pruccoli L, Balducci M, Giuliani P, Caciagli F, Ciccarelli R, Di Iorio P. Influence of Guanine-Based Purines on the Oxidoreductive Reactions Involved in Normal or Altered Brain Functions. J Clin Med 2023; 12:jcm12031172. [PMID: 36769818 PMCID: PMC9917437 DOI: 10.3390/jcm12031172] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 01/23/2023] [Accepted: 01/30/2023] [Indexed: 02/05/2023] Open
Abstract
The production of reactive oxygen species (ROS) in the brain is homeostatically controlled and contributes to normal neural functions. Inefficiency of control mechanisms in brain aging or pathological conditions leads to ROS overproduction with oxidative neural cell damage and degeneration. Among the compounds showing therapeutic potential against neuro-dysfunctions induced by oxidative stress are the guanine-based purines (GBPs), of which the most characterized are the nucleoside guanosine (GUO) and the nucleobase guanine (GUA), which act differently. Indeed, the administration of GUO to in vitro or in vivo models of acute brain injury (ischemia/hypoxia or trauma) or chronic neurological/neurodegenerative disorders, exerts neuroprotective and anti-inflammatory effects, decreasing the production of reactive radicals and improving mitochondrial function via multiple molecular signals. However, GUO administration to rodents also causes an amnesic effect. In contrast, the metabolite, GUA, could be effective in memory-related disorders by transiently increasing ROS production and stimulating the nitric oxide/soluble guanylate cyclase/cGMP/protein kinase G cascade, which has long been recognized as beneficial for cognitive function. Thus, it is worth pursuing further studies to ascertain the therapeutic role of GUO and GUA and to evaluate the pathological brain conditions in which these compounds could be more usefully used.
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Affiliation(s)
- Mariachiara Zuccarini
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, Via dei Vestini 29, 66100 Chieti, Italy
- Center for Advanced Studies and Technologies (CAST), University of Chieti-Pescara, Via L. Polacchi, 66100 Chieti, Italy
| | - Letizia Pruccoli
- Department for Life Quality Studies, Alma Mater Studiorum-University of Bologna, 47921 Rimini, Italy
| | - Martina Balducci
- Department for Life Quality Studies, Alma Mater Studiorum-University of Bologna, 47921 Rimini, Italy
| | - Patricia Giuliani
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, Via dei Vestini 29, 66100 Chieti, Italy
- Center for Advanced Studies and Technologies (CAST), University of Chieti-Pescara, Via L. Polacchi, 66100 Chieti, Italy
| | - Francesco Caciagli
- Center for Advanced Studies and Technologies (CAST), University of Chieti-Pescara, Via L. Polacchi, 66100 Chieti, Italy
| | - Renata Ciccarelli
- Center for Advanced Studies and Technologies (CAST), University of Chieti-Pescara, Via L. Polacchi, 66100 Chieti, Italy
| | - Patrizia Di Iorio
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, Via dei Vestini 29, 66100 Chieti, Italy
- Center for Advanced Studies and Technologies (CAST), University of Chieti-Pescara, Via L. Polacchi, 66100 Chieti, Italy
- Correspondence:
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Garozzo R, Zuccarini M, Giuliani P, Di Liberto V, Mudò G, Caciagli F, Ciccarelli R, Ciruela F, Di Iorio P, Condorelli DF. Guanine inhibits the growth of human glioma and melanoma cell lines by interacting with GPR23. Front Pharmacol 2022; 13:970891. [PMID: 36199684 PMCID: PMC9527276 DOI: 10.3389/fphar.2022.970891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 06/16/2022] [Accepted: 08/23/2022] [Indexed: 11/13/2022] Open
Abstract
Guanine-based purines (GBPs) exert numerous biological effects at the central nervous system through putative membrane receptors, the existence of which is still elusive. To shed light on this question, we screened orphan and poorly characterized G protein-coupled receptors (GPRs), selecting those that showed a high purinoreceptor similarity and were expressed in glioma cells, where GBPs exerted a powerful antiproliferative effect. Of the GPRs chosen, only the silencing of GPR23, also known as lysophosphatidic acid (LPA) 4 receptor, counteracted GBP-induced growth inhibition in U87 cells. Guanine (GUA) was the most potent compound behind the GPR23-mediated effect, acting as the endpoint effector of GBP antiproliferative effects. Accordingly, cells stably expressing GPR23 showed increased sensitivity to GUA. Furthermore, while GPR23 expression was low in a hypoxanthine-guanine phosphoribosyl-transferase (HGPRT)-mutated melanoma cell line showing poor sensitivity to GBPs, and in HGPRT-silenced glioma cells, GPR23-induced expression in both cell types rescued GUA-mediated cell growth inhibition. Finally, binding experiments using [3H]-GUA and U87 cell membranes revealed the existence of a selective GUA binding (KD = 29.44 ± 4.07 nM; Bmax 1.007 ± 0.035 pmol/mg prot) likely to GPR23. Overall, these data suggest GPR23 involvement in modulating responses to GUA in tumor cell lines, although further research needs to verify whether this receptor mediates other GUA effects.
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Affiliation(s)
- Roberta Garozzo
- Department of Biomedical and Biotechnological, Section of Medical Biochemistry, University of Catania, Catania, Italy
| | - Mariachiara Zuccarini
- Department of Medical, Oral and Biotechnological Sciences, Section of Pharmacology and Toxicology, School of Medicine, University of Chieti-Pescara, Chieti, Italy
- Center for Advanced Studies and Technologies (CAST), University of Chieti-Pescara, Chieti, Italy
| | - Patricia Giuliani
- Department of Medical, Oral and Biotechnological Sciences, Section of Pharmacology and Toxicology, School of Medicine, University of Chieti-Pescara, Chieti, Italy
- Center for Advanced Studies and Technologies (CAST), University of Chieti-Pescara, Chieti, Italy
| | - Valentina Di Liberto
- Department of Biomedicine, Neuroscience and Advanced Diagnostic, University of Palermo, Palermo, Italy
| | - Giuseppa Mudò
- Department of Biomedicine, Neuroscience and Advanced Diagnostic, University of Palermo, Palermo, Italy
| | - Francesco Caciagli
- Center for Advanced Studies and Technologies (CAST), University of Chieti-Pescara, Chieti, Italy
| | - Renata Ciccarelli
- Center for Advanced Studies and Technologies (CAST), University of Chieti-Pescara, Chieti, Italy
| | - Francisco Ciruela
- Pharmacology Unit, Department of Pathology and Experimental Therapeutics, Faculty of Medicine and Health Sciences, Institute of Neurosciences, University of Barcelona, Barcelona, Spain
- Neuropharmacology and Pain Group, Neuroscience Program, Institut d’Investigació Biomèdica de Bellvitge, IDIBELL, Barcelona, Spain
| | - Patrizia Di Iorio
- Department of Medical, Oral and Biotechnological Sciences, Section of Pharmacology and Toxicology, School of Medicine, University of Chieti-Pescara, Chieti, Italy
- Center for Advanced Studies and Technologies (CAST), University of Chieti-Pescara, Chieti, Italy
- *Correspondence: Patrizia Di Iorio,
| | - Daniele F. Condorelli
- Department of Biomedical and Biotechnological, Section of Medical Biochemistry, University of Catania, Catania, Italy
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Zuccarini M, Giuliani P, Ronci M, Caciagli F, Caruso V, Ciccarelli R, Di Iorio P. Purinergic Signaling in Oral Tissues. Int J Mol Sci 2022; 23:ijms23147790. [PMID: 35887132 PMCID: PMC9318746 DOI: 10.3390/ijms23147790] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 07/12/2022] [Accepted: 07/13/2022] [Indexed: 02/01/2023] Open
Abstract
The role of the purinergic signal has been extensively investigated in many tissues and related organs, including the central and peripheral nervous systems as well as the gastrointestinal, cardiovascular, respiratory, renal, and immune systems. Less attention has been paid to the influence of purines in the oral cavity, which is the first part of the digestive apparatus and also acts as the body’s first antimicrobial barrier. In this review, evidence is provided of the presence and possible physiological role of the purinergic system in the different structures forming the oral cavity including teeth, tongue, hard palate, and soft palate with their annexes such as taste buds, salivary glands, and nervous fibers innervating the oral structures. We also report findings on the involvement of the purinergic signal in pathological conditions affecting the oral apparatus such as Sjögren’s syndrome or following irradiation for the treatment of head and neck cancer, and the use of experimental drugs interfering with the purine system to improve bone healing after damage. Further investigations are required to translate the results obtained so far into the clinical setting in order to pave the way for a wider application of purine-based treatments in oral diseases.
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Affiliation(s)
- Mariachiara Zuccarini
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, Via dei Vestini 29, 66100 Chieti, Italy; (M.Z.); (P.G.); (P.D.I.)
- Center for Advanced Studies and Technologies (CAST), University of Chieti-Pescara, Via L. Polacchi, 66100 Chieti, Italy; (M.R.); (F.C.)
| | - Patricia Giuliani
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, Via dei Vestini 29, 66100 Chieti, Italy; (M.Z.); (P.G.); (P.D.I.)
- Center for Advanced Studies and Technologies (CAST), University of Chieti-Pescara, Via L. Polacchi, 66100 Chieti, Italy; (M.R.); (F.C.)
| | - Maurizio Ronci
- Center for Advanced Studies and Technologies (CAST), University of Chieti-Pescara, Via L. Polacchi, 66100 Chieti, Italy; (M.R.); (F.C.)
- Department of Pharmacy, University of Chieti-Pescara, Via dei Vestini 29, 66100 Chieti, Italy
| | - Francesco Caciagli
- Center for Advanced Studies and Technologies (CAST), University of Chieti-Pescara, Via L. Polacchi, 66100 Chieti, Italy; (M.R.); (F.C.)
| | - Vanni Caruso
- School of Pharmacy and Pharmacology, University of Tasmania, Hobart, TAS 7005, Australia;
| | - Renata Ciccarelli
- Center for Advanced Studies and Technologies (CAST), University of Chieti-Pescara, Via L. Polacchi, 66100 Chieti, Italy; (M.R.); (F.C.)
- Stem TeCh Group, Via L. Polacchi, 66100 Chieti, Italy
- Correspondence:
| | - Patrizia Di Iorio
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, Via dei Vestini 29, 66100 Chieti, Italy; (M.Z.); (P.G.); (P.D.I.)
- Center for Advanced Studies and Technologies (CAST), University of Chieti-Pescara, Via L. Polacchi, 66100 Chieti, Italy; (M.R.); (F.C.)
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Zuccarini M, Giuliani P, Di Liberto V, Frinchi M, Caciagli F, Caruso V, Ciccarelli R, Mudò G, Di Iorio P. Adipose Stromal/Stem Cell-Derived Extracellular Vesicles: Potential Next-Generation Anti-Obesity Agents. Int J Mol Sci 2022; 23:ijms23031543. [PMID: 35163472 PMCID: PMC8836090 DOI: 10.3390/ijms23031543] [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: 11/18/2021] [Revised: 01/26/2022] [Accepted: 01/26/2022] [Indexed: 02/01/2023] Open
Abstract
Over the last decade, several compounds have been identified for the treatment of obesity. However, due to the complexity of the disease, many pharmacological interventions have raised concerns about their efficacy and safety. Therefore, it is important to discover new factors involved in the induction/progression of obesity. Adipose stromal/stem cells (ASCs), which are mostly isolated from subcutaneous adipose tissue, are the primary cells contributing to the expansion of fat mass. Like other cells, ASCs release nanoparticles known as extracellular vesicles (EVs), which are being actively studied for their potential applications in a variety of diseases. Here, we focused on the importance of the contribution of ASC-derived EVs in the regulation of metabolic processes. In addition, we outlined the advantages/disadvantages of the use of EVs as potential next-generation anti-obesity agents.
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Affiliation(s)
- Mariachiara Zuccarini
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, Via dei Vestini 29, 66100 Chieti, Italy; (M.Z.); (P.G.); (P.D.I.)
- Center for Advanced Studies and Technologies (CAST), University of Chieti-Pescara, Via L. Polacchi, 66100 Chieti, Italy;
| | - Patricia Giuliani
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, Via dei Vestini 29, 66100 Chieti, Italy; (M.Z.); (P.G.); (P.D.I.)
- Center for Advanced Studies and Technologies (CAST), University of Chieti-Pescara, Via L. Polacchi, 66100 Chieti, Italy;
| | - Valentina Di Liberto
- Department of Biomedicine, Neuroscience and Advanced Diagnostic, University of Palermo, 90128 Palermo, Italy; (V.D.L.); (M.F.); (G.M.)
| | - Monica Frinchi
- Department of Biomedicine, Neuroscience and Advanced Diagnostic, University of Palermo, 90128 Palermo, Italy; (V.D.L.); (M.F.); (G.M.)
| | - Francesco Caciagli
- Center for Advanced Studies and Technologies (CAST), University of Chieti-Pescara, Via L. Polacchi, 66100 Chieti, Italy;
| | - Vanni Caruso
- School of Pharmacy and Pharmacology, University of Tasmania, Hobart 7001, Australia;
| | - Renata Ciccarelli
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, Via dei Vestini 29, 66100 Chieti, Italy; (M.Z.); (P.G.); (P.D.I.)
- Center for Advanced Studies and Technologies (CAST), University of Chieti-Pescara, Via L. Polacchi, 66100 Chieti, Italy;
- Stem TeCh Group, Center for Advanced Studies and Technologies (CAST), Via L. Polacchi, 66100 Chieti, Italy
- Correspondence:
| | - Giuseppa Mudò
- Department of Biomedicine, Neuroscience and Advanced Diagnostic, University of Palermo, 90128 Palermo, Italy; (V.D.L.); (M.F.); (G.M.)
| | - Patrizia Di Iorio
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, Via dei Vestini 29, 66100 Chieti, Italy; (M.Z.); (P.G.); (P.D.I.)
- Center for Advanced Studies and Technologies (CAST), University of Chieti-Pescara, Via L. Polacchi, 66100 Chieti, Italy;
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Zuccarini M, Lambertucci C, Carluccio M, Giuliani P, Ronci M, Spinaci A, Volpini R, Ciccarelli R, Di Iorio P. Multipotent Stromal Cells from Subcutaneous Adipose Tissue of Normal Weight and Obese Subjects: Modulation of Their Adipogenic Differentiation by Adenosine A 1 Receptor Ligands. Cells 2021; 10:cells10123560. [PMID: 34944069 PMCID: PMC8700077 DOI: 10.3390/cells10123560] [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: 11/17/2021] [Revised: 12/09/2021] [Accepted: 12/15/2021] [Indexed: 11/18/2022] Open
Abstract
Adenosine A1 receptor (A1R) activation, stimulating lipogenesis and decreasing insulin resistance, could be useful for metabolic syndrome management in obese subjects. Since full A1R agonists induce harmful side-effects, while partial agonists show a better pharmacological profile, we investigated the influence of two derivatives of the full A1R agonist 2-chloro-N6-cyclopentyladenosine (CCPA), C1 and C2 behaving as A1R partial agonists in animal models, on the adipogenic differentiation of stromal/stem cells (ASCs) from human subcutaneous adipose tissue, which mainly contribute to increase fat mass in obesity. The ASCs from normal-weight subjects showed increased proliferation and A1R expression but reduced adipogenic differentiation compared to obese individual-derived ASCs. Cell exposure to CCPA, C1, C2 or DPCPX, an A1R antagonist, did not affect ASC proliferation, while mainly C2 and DPCPX significantly decreased adipogenic differentiation of both ASC types, reducing the activity of glycerol-3-phosphate dehydrogenase and the expression of PPARγ and FABP-4, all adipogenic markers, and phosphorylation of Akt in the phosphatidylinositol-3-kinase pathway, which plays a key-role in adipogenesis. While requiring confirmation in in vivo models, our results suggest that A1R partial agonists or antagonists, by limiting ASC differentiation into adipocytes and, thereby, fat mass expansion, could favor development/worsening of metabolic syndrome in obese subjects without a dietary control.
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Affiliation(s)
- Mariachiara Zuccarini
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, Via dei Vestini 29, 66100 Chieti, Italy; (M.Z.); (M.C.); (P.G.); (P.D.I.)
- Center for Advanced Study and Technologies (CAST), University of Chieti-Pescara, Via L. Polacchi 11, 66100 Chieti, Italy
| | - Catia Lambertucci
- Unit of Medicinal Chemistry, School of Pharmacy, University of Camerino, Via S. Agostino 1, 62032 Camerino, Italy; (C.L.); (A.S.); (R.V.)
| | - Marzia Carluccio
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, Via dei Vestini 29, 66100 Chieti, Italy; (M.Z.); (M.C.); (P.G.); (P.D.I.)
- Center for Advanced Study and Technologies (CAST), University of Chieti-Pescara, Via L. Polacchi 11, 66100 Chieti, Italy
- Stem TeCh Group, Via L. Polacchi 11, 66100 Chieti, Italy
| | - Patricia Giuliani
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, Via dei Vestini 29, 66100 Chieti, Italy; (M.Z.); (M.C.); (P.G.); (P.D.I.)
- Center for Advanced Study and Technologies (CAST), University of Chieti-Pescara, Via L. Polacchi 11, 66100 Chieti, Italy
| | - Maurizio Ronci
- Department of Pharmacy, University of Chieti-Pescara, Via dei Vestini 29, 66100 Chieti, Italy;
| | - Andrea Spinaci
- Unit of Medicinal Chemistry, School of Pharmacy, University of Camerino, Via S. Agostino 1, 62032 Camerino, Italy; (C.L.); (A.S.); (R.V.)
| | - Rosaria Volpini
- Unit of Medicinal Chemistry, School of Pharmacy, University of Camerino, Via S. Agostino 1, 62032 Camerino, Italy; (C.L.); (A.S.); (R.V.)
| | - Renata Ciccarelli
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, Via dei Vestini 29, 66100 Chieti, Italy; (M.Z.); (M.C.); (P.G.); (P.D.I.)
- Center for Advanced Study and Technologies (CAST), University of Chieti-Pescara, Via L. Polacchi 11, 66100 Chieti, Italy
- Unit of Medicinal Chemistry, School of Pharmacy, University of Camerino, Via S. Agostino 1, 62032 Camerino, Italy; (C.L.); (A.S.); (R.V.)
- Correspondence:
| | - Patrizia Di Iorio
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, Via dei Vestini 29, 66100 Chieti, Italy; (M.Z.); (M.C.); (P.G.); (P.D.I.)
- Center for Advanced Study and Technologies (CAST), University of Chieti-Pescara, Via L. Polacchi 11, 66100 Chieti, Italy
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Zuccarini M, Giuliani P, Caciagli F, Ciccarelli R, Di Iorio P. In Search of a Role for Extracellular Purine Enzymes in Bone Function. Biomolecules 2021; 11:biom11050679. [PMID: 33946568 PMCID: PMC8147220 DOI: 10.3390/biom11050679] [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] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 04/27/2021] [Accepted: 04/29/2021] [Indexed: 12/12/2022] Open
Abstract
Bone is one of the major tissues that undergoes continuous remodeling throughout life, thus ensuring both organic body growth during development and protection of internal organs as well as repair of trauma during adulthood. Many endogenous substances contribute to bone homeostasis, including purines. Their role has increasingly emerged in recent decades as compounds which, by interacting with specific receptors, can help determine adequate responses of bone cells to physiological or pathological stimuli. Equally, it is recognized that the activity of purines is closely dependent on their interconversion or metabolic degradation ensured by a series of enzymes present at extracellular level as predominantly bound to the cell membrane or, also, as soluble isoforms. While the effects of purines mediated by their receptor interactions have sufficiently, even though not entirely, been characterized in many tissues including bone, those promoted by the extracellular enzymes providing for purine metabolism have not been. In this review, we will try to circumstantiate the presence and the role of these enzymes in bone to define their close relationship with purine activities in maintaining bone homeostasis in normal or pathological conditions.
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Affiliation(s)
- Mariachiara Zuccarini
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, Via dei Vestini 29, 66100 Chieti, Italy; (M.Z.); (P.G.); (P.D.I.)
- Center for Advanced Studies and Technologies (CAST), University of Chieti-Pescara, Via L. Polacchi, 66100 Chieti, Italy;
| | - Patricia Giuliani
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, Via dei Vestini 29, 66100 Chieti, Italy; (M.Z.); (P.G.); (P.D.I.)
- Center for Advanced Studies and Technologies (CAST), University of Chieti-Pescara, Via L. Polacchi, 66100 Chieti, Italy;
| | - Francesco Caciagli
- Center for Advanced Studies and Technologies (CAST), University of Chieti-Pescara, Via L. Polacchi, 66100 Chieti, Italy;
| | - Renata Ciccarelli
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, Via dei Vestini 29, 66100 Chieti, Italy; (M.Z.); (P.G.); (P.D.I.)
- Center for Advanced Studies and Technologies (CAST), University of Chieti-Pescara, Via L. Polacchi, 66100 Chieti, Italy;
- StemTeCh Group, Via L. Polacchi, 66100 Chieti, Italy
- Correspondence:
| | - Patrizia Di Iorio
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, Via dei Vestini 29, 66100 Chieti, Italy; (M.Z.); (P.G.); (P.D.I.)
- Center for Advanced Studies and Technologies (CAST), University of Chieti-Pescara, Via L. Polacchi, 66100 Chieti, Italy;
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9
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Belluardo N, Mudò G, Di Liberto V, Frinchi M, Condorelli DF, Traversa U, Ciruela F, Ciccarelli R, Di Iorio P, Giuliani P. Investigating the Role of Guanosine on Human Neuroblastoma Cell Differentiation and the Underlying Molecular Mechanisms. Front Pharmacol 2021; 12:658806. [PMID: 33986683 PMCID: PMC8111303 DOI: 10.3389/fphar.2021.658806] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Accepted: 03/19/2021] [Indexed: 01/20/2023] Open
Abstract
Neuroblastoma arises from neural crest cell precursors failing to complete the process of differentiation. Thus, agents helping tumor cells to differentiate into normal cells can represent a valid therapeutic strategy. Here, we evaluated whether guanosine (GUO), a natural purine nucleoside, which is able to induce differentiation of many cell types, may cause the differentiation of human neuroblastoma SH-SY5Y cells and the molecular mechanisms involved. We found that GUO, added to the cell culture medium, promoted neuron-like cell differentiation in a time- and concentration-dependent manner. This effect was mainly due to an extracellular GUO action since nucleoside transporter inhibitors reduced but not abolished it. Importantly, GUO-mediated neuron-like cell differentiation was independent of adenosine receptor activation as it was not altered by the blockade of these receptors. Noteworthy, the neuritogenic activity of GUO was not affected by blocking the phosphoinositide 3-kinase pathway, while it was reduced by inhibitors of protein kinase C or soluble guanylate cyclase. Furthermore, the inhibitor of the enzyme heme oxygenase-1 but not that of nitric oxide synthase reduced GUO-induced neurite outgrowth. Interestingly, we found that GUO was largely metabolized into guanine by the purine nucleoside phosphorylase (PNP) enzyme released from cells. Taken together, our results suggest that GUO, promoting neuroblastoma cell differentiation, may represent a potential therapeutic agent; however, due to its spontaneous extracellular metabolism, the role played by the GUO-PNP-guanine system needs to be further investigated.
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Affiliation(s)
- Natale Belluardo
- Department of Biomedicine, Neuroscience and Advanced Diagnostic, University of Palermo, Palermo, Italy
| | - Giuseppa Mudò
- Department of Biomedicine, Neuroscience and Advanced Diagnostic, University of Palermo, Palermo, Italy
| | - Valentina Di Liberto
- Department of Biomedicine, Neuroscience and Advanced Diagnostic, University of Palermo, Palermo, Italy
| | - Monica Frinchi
- Department of Biomedicine, Neuroscience and Advanced Diagnostic, University of Palermo, Palermo, Italy
| | - Daniele F Condorelli
- Department of Biomedical and Biotechnological Sciences, Section of Medical Biochemistry, University of Catania, Catania, Italy
| | - Ugo Traversa
- Department of Life Sciences, University of Trieste, Trieste, Italy
| | - Francisco Ciruela
- Pharmacology Unit, Department of Pathology and Experimental Therapeutics, Faculty of Medicine and Health Sciences, Institute of Neurosciences, University of Barcelona, L'Hospitalet de Llobregat, Spain.,Neuropharmacology and Pain Group, Neuroscience Program, Institut d'Investigació Biomèdica de Bellvitge, IDIBELL, L'Hospitalet de Llobregat, Spain
| | - Renata Ciccarelli
- Department of Medical, Oral and Biotechnological Sciences, "G. D'Annunzio" University of Chieti-Pescara, Chieti, Italy.,Center for Advanced Studies and Technology, CAST, "G. D'Annunzio" University Foundation, Chieti, Italy
| | - Patrizia Di Iorio
- Department of Medical, Oral and Biotechnological Sciences, "G. D'Annunzio" University of Chieti-Pescara, Chieti, Italy.,Center for Advanced Studies and Technology, CAST, "G. D'Annunzio" University Foundation, Chieti, Italy
| | - Patricia Giuliani
- Department of Medical, Oral and Biotechnological Sciences, "G. D'Annunzio" University of Chieti-Pescara, Chieti, Italy.,Center for Advanced Studies and Technology, CAST, "G. D'Annunzio" University Foundation, Chieti, Italy
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10
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Giuliani P, Carluccio M, Ciccarelli R. Role of Purinome, A Complex Signaling System, In Glioblastoma Aggressiveness. Front Pharmacol 2021; 12:632622. [PMID: 33613296 PMCID: PMC7892952 DOI: 10.3389/fphar.2021.632622] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Accepted: 01/07/2021] [Indexed: 12/13/2022] Open
Affiliation(s)
- Patricia Giuliani
- Department of Medical, Oral and Biotechnological Sciences, 'G. D'Annunzio' University of Chieti-Pescara, Chieti, Italy.,Center for Advanced Studies and Technology (CAST), 'G. D'Annunzio' University of Chieti-Pescara, Chieti, Italy
| | - Marzia Carluccio
- Department of Medical, Oral and Biotechnological Sciences, 'G. D'Annunzio' University of Chieti-Pescara, Chieti, Italy.,Center for Advanced Studies and Technology (CAST), 'G. D'Annunzio' University of Chieti-Pescara, Chieti, Italy
| | - Renata Ciccarelli
- Department of Medical, Oral and Biotechnological Sciences, 'G. D'Annunzio' University of Chieti-Pescara, Chieti, Italy.,Center for Advanced Studies and Technology (CAST), 'G. D'Annunzio' University of Chieti-Pescara, Chieti, Italy
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11
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Di Giuseppe F, Carluccio M, Zuccarini M, Giuliani P, Ricci-Vitiani L, Pallini R, De Sanctis P, Di Pietro R, Ciccarelli R, Angelucci S. Proteomic Characterization of Two Extracellular Vesicle Subtypes Isolated from Human Glioblastoma Stem Cell Secretome by Sequential Centrifugal Ultrafiltration. Biomedicines 2021; 9:biomedicines9020146. [PMID: 33546239 PMCID: PMC7913340 DOI: 10.3390/biomedicines9020146] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [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: 12/22/2020] [Revised: 01/25/2021] [Accepted: 01/29/2021] [Indexed: 02/05/2023] Open
Abstract
Extracellular vesicles (EVs) released from tumor cells are actively investigated, since molecules therein contained and likely transferred to neighboring cells, supplying them with oncogenic information/functions, may represent cancer biomarkers and/or druggable targets. Here, we characterized by a proteomic point of view two EV subtypes isolated by sequential centrifugal ultrafiltration technique from culture medium of glioblastoma (GBM)-derived stem-like cells (GSCs) obtained from surgical specimens of human GBM, the most aggressive and lethal primary brain tumor. Electron microscopy and western blot analysis distinguished them into microvesicles (MVs) and exosomes (Exos). Two-dimensional electrophoresis followed by MALDI TOF analysis allowed us to identify, besides a common pool, sets of proteins specific for each EV subtypes with peculiar differences in their molecular/biological functions. Such a diversity was confirmed by identification of some top proteins selected in MVs and Exos. They were mainly chaperone or metabolic enzymes in MVs, whereas, in Exos, molecules are involved in cell-matrix adhesion, cell migration/aggressiveness, and chemotherapy resistance. These proteins, identified by EVs from primary GSCs and not GBM cell lines, could be regarded as new possible prognostic markers/druggable targets of the human tumor, although data need to be confirmed in EVs isolated from a greater GSC number.
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Affiliation(s)
- Fabrizio Di Giuseppe
- Department of Innovative Technologies in Medicine and Dentistry, ‘G. d’Annunzio’ University of Chieti-Pescara, Via Vestini 31, 66100 Chieti, Italy;
- Center for Advanced Studies and Technology (CAST), ‘G. d’Annunzio’ University of Chieti-Pescara, Via L Polacchi 13, 66100 Chieti, Italy; (M.C.); (M.Z.); (P.G.); (P.D.S.); (R.D.P.); (R.C.)
- Stem TeCh Group, Via L Polacchi 13, 66100 Chieti, Italy
| | - Marzia Carluccio
- Center for Advanced Studies and Technology (CAST), ‘G. d’Annunzio’ University of Chieti-Pescara, Via L Polacchi 13, 66100 Chieti, Italy; (M.C.); (M.Z.); (P.G.); (P.D.S.); (R.D.P.); (R.C.)
- Stem TeCh Group, Via L Polacchi 13, 66100 Chieti, Italy
- Department of Medical, Oral and Biotechnological Sciences, ‘G. d’Annunzio’ University of Chieti-Pescara, Via Vestini 31, 66100 Chieti, Italy
| | - Mariachiara Zuccarini
- Center for Advanced Studies and Technology (CAST), ‘G. d’Annunzio’ University of Chieti-Pescara, Via L Polacchi 13, 66100 Chieti, Italy; (M.C.); (M.Z.); (P.G.); (P.D.S.); (R.D.P.); (R.C.)
- Department of Medical, Oral and Biotechnological Sciences, ‘G. d’Annunzio’ University of Chieti-Pescara, Via Vestini 31, 66100 Chieti, Italy
| | - Patricia Giuliani
- Center for Advanced Studies and Technology (CAST), ‘G. d’Annunzio’ University of Chieti-Pescara, Via L Polacchi 13, 66100 Chieti, Italy; (M.C.); (M.Z.); (P.G.); (P.D.S.); (R.D.P.); (R.C.)
- Department of Medical, Oral and Biotechnological Sciences, ‘G. d’Annunzio’ University of Chieti-Pescara, Via Vestini 31, 66100 Chieti, Italy
| | - Lucia Ricci-Vitiani
- Department of Oncology and Molecular Medicine, Istituto Superiore di Sanità, Via Regina Elena 299, 00161 Rome, Italy;
| | - Roberto Pallini
- Institute of Neurosurgery, Università Cattolica del Sacro Cuore, Largo Agostino Gemelli 8, 00168 Rome, Italy;
| | - Paolo De Sanctis
- Center for Advanced Studies and Technology (CAST), ‘G. d’Annunzio’ University of Chieti-Pescara, Via L Polacchi 13, 66100 Chieti, Italy; (M.C.); (M.Z.); (P.G.); (P.D.S.); (R.D.P.); (R.C.)
- Department of Medicine and Ageing Sciences, ‘G. d’Annunzio’ University of Chieti-Pescara, Via Vestini 31, 66100 Chieti, Italy
| | - Roberta Di Pietro
- Center for Advanced Studies and Technology (CAST), ‘G. d’Annunzio’ University of Chieti-Pescara, Via L Polacchi 13, 66100 Chieti, Italy; (M.C.); (M.Z.); (P.G.); (P.D.S.); (R.D.P.); (R.C.)
- Stem TeCh Group, Via L Polacchi 13, 66100 Chieti, Italy
- Department of Medicine and Ageing Sciences, ‘G. d’Annunzio’ University of Chieti-Pescara, Via Vestini 31, 66100 Chieti, Italy
| | - Renata Ciccarelli
- Center for Advanced Studies and Technology (CAST), ‘G. d’Annunzio’ University of Chieti-Pescara, Via L Polacchi 13, 66100 Chieti, Italy; (M.C.); (M.Z.); (P.G.); (P.D.S.); (R.D.P.); (R.C.)
- Stem TeCh Group, Via L Polacchi 13, 66100 Chieti, Italy
- Department of Medical, Oral and Biotechnological Sciences, ‘G. d’Annunzio’ University of Chieti-Pescara, Via Vestini 31, 66100 Chieti, Italy
| | - Stefania Angelucci
- Department of Innovative Technologies in Medicine and Dentistry, ‘G. d’Annunzio’ University of Chieti-Pescara, Via Vestini 31, 66100 Chieti, Italy;
- Center for Advanced Studies and Technology (CAST), ‘G. d’Annunzio’ University of Chieti-Pescara, Via L Polacchi 13, 66100 Chieti, Italy; (M.C.); (M.Z.); (P.G.); (P.D.S.); (R.D.P.); (R.C.)
- Stem TeCh Group, Via L Polacchi 13, 66100 Chieti, Italy
- Correspondence: ; Tel.: +39-0871541482
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12
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Frinchi M, Verdi V, Plescia F, Ciruela F, Grillo M, Garozzo R, Condorelli DF, Di Iorio P, Caciagli F, Ciccarelli R, Belluardo N, Di Liberto V, Mudò G. Guanosine-Mediated Anxiolytic-Like Effect: Interplay with Adenosine A 1 and A 2A Receptors. Int J Mol Sci 2020; 21:ijms21239281. [PMID: 33291390 PMCID: PMC7729560 DOI: 10.3390/ijms21239281] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [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: 10/24/2020] [Revised: 11/30/2020] [Accepted: 12/03/2020] [Indexed: 01/01/2023] Open
Abstract
Acute or chronic administration of guanosine (GUO) induces anxiolytic-like effects, for which the adenosine (ADO) system involvement has been postulated yet without a direct experimental evidence. Thus, we aimed to investigate whether adenosine receptors (ARs) are involved in the GUO-mediated anxiolytic-like effect, evaluated by three anxiety-related paradigms in rats. First, we confirmed that acute treatment with GUO exerts an anxiolytic-like effect. Subsequently, we investigated the effects of pretreatment with ADO or A1R (CPA, CCPA) or A2AR (CGS21680) agonists 10 min prior to GUO on a GUO-induced anxiolytic-like effect. All the combined treatments blocked the GUO anxiolytic-like effect, whereas when administered alone, each compound was ineffective as compared to the control group. Interestingly, the pretreatment with nonselective antagonist caffeine or selective A1R (DPCPX) or A2AR (ZM241385) antagonists did not modify the GUO-induced anxiolytic-like effect. Finally, binding assay performed in hippocampal membranes showed that [3H]GUO binding became saturable at 100–300 nM, suggesting the existence of a putative GUO binding site. In competition experiments, ADO showed a potency order similar to GUO in displacing [3H]GUO binding, whereas AR selective agonists, CPA and CGS21680, partially displaced [3H]GUO binding, but the sum of the two effects was able to displace [3H]GUO binding to the same extent of ADO alone. Overall, our results strengthen previous data supporting GUO-mediated anxiolytic-like effects, add new evidence that these effects are blocked by A1R and A2AR agonists and pave, although they do not elucidate the mechanism of GUO and ADO receptor interaction, for a better characterization of GUO binding sites in ARs.
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Affiliation(s)
- Monica Frinchi
- Department of Biomedicine, Neuroscience and Advanced Diagnostic, University of Palermo, 90134 Palermo, Italy; (M.F.); (V.V.); (M.G.); (N.B.); (V.D.L.)
| | - Vincenzo Verdi
- Department of Biomedicine, Neuroscience and Advanced Diagnostic, University of Palermo, 90134 Palermo, Italy; (M.F.); (V.V.); (M.G.); (N.B.); (V.D.L.)
- Institut de Psychiatrie et Neurosciences de Paris, INSERM U1266, Université de Paris, F-75014 Paris, France
| | - Fulvio Plescia
- Department of Sciences for Health Promotion and Mother and Child Care “G. D’Alessandro”, University of Palermo, 90127 Palermo, Italy;
| | - Francisco Ciruela
- Unitat de Farmacologia, Departament Patologia i Terapèutica Experimental, Facultat de Medicina i Ciències de la Salut, IDIBELL, Universitat de Barcelona, 08907 Barcelona, Spain
- Institut de Neurociències, Universitat de Barcelona, 08035 Barcelona, Spain
- Correspondence: (F.C.); (G.M.)
| | - Maria Grillo
- Department of Biomedicine, Neuroscience and Advanced Diagnostic, University of Palermo, 90134 Palermo, Italy; (M.F.); (V.V.); (M.G.); (N.B.); (V.D.L.)
| | - Roberta Garozzo
- Department of Biomedical and Biotechnological Sciences, Section of Medical Biochemistry, University of Catania, 95123 Catania, Italy; (R.G.); (D.F.C.)
| | - Daniele F. Condorelli
- Department of Biomedical and Biotechnological Sciences, Section of Medical Biochemistry, University of Catania, 95123 Catania, Italy; (R.G.); (D.F.C.)
- Laboratory of Complex Systems, Scuola Superiore di Catania, University of Catania, 95123 Catania, Italy
| | - Patrizia Di Iorio
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, 66100 Chieti, Italy; (P.D.I.); (F.C.); (R.C.)
- Center for Advanced Studies and Technologies (CAST), University of Chieti-Pescara, 66100 Chieti, Italy
| | - Francesco Caciagli
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, 66100 Chieti, Italy; (P.D.I.); (F.C.); (R.C.)
| | - Renata Ciccarelli
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, 66100 Chieti, Italy; (P.D.I.); (F.C.); (R.C.)
- Center for Advanced Studies and Technologies (CAST), University of Chieti-Pescara, 66100 Chieti, Italy
| | - Natale Belluardo
- Department of Biomedicine, Neuroscience and Advanced Diagnostic, University of Palermo, 90134 Palermo, Italy; (M.F.); (V.V.); (M.G.); (N.B.); (V.D.L.)
| | - Valentina Di Liberto
- Department of Biomedicine, Neuroscience and Advanced Diagnostic, University of Palermo, 90134 Palermo, Italy; (M.F.); (V.V.); (M.G.); (N.B.); (V.D.L.)
| | - Giuseppa Mudò
- Department of Biomedicine, Neuroscience and Advanced Diagnostic, University of Palermo, 90134 Palermo, Italy; (M.F.); (V.V.); (M.G.); (N.B.); (V.D.L.)
- Correspondence: (F.C.); (G.M.)
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13
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Carluccio M, Zuccarini M, Ziberi S, Giuliani P, Morabito C, Mariggiò MA, Lonardo MT, Adinolfi E, Orioli E, Di Iorio P, Caciagli F, Ciccarelli R. Involvement of P2X7 Receptors in the Osteogenic Differentiation of Mesenchymal Stromal/Stem Cells Derived from Human Subcutaneous Adipose Tissue. Stem Cell Rev Rep 2020; 15:574-589. [PMID: 30955192 DOI: 10.1007/s12015-019-09883-6] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The ionotropic P2X7 receptor (P2X7R) is involved in bone homeostasis but its role in osteogenesis is controversial. Thus, we investigated the expression of P2X7R and the effects exerted by its modulation in mesenchymal stromal cells from human subcutaneous adipose tissue (S-ASCs), which have potential therapeutic application in bone regenerative medicine. We found that undifferentiated S-ASCs expressed P2X7R and its functional splice variants P2X7AR and P2X7BR. Cell stimulation by P2X7R agonist BzATP (100 μM) neither modified proliferation nor caused membrane pore opening while increasing intracellular Ca2+ levels and migration. The P2X7R antagonist A438079 reversed these effects. However, 25-100 μM BzATP, administered to S-ASCs undergoing osteogenic differentiation, dose-dependently decreased extracellular matrix mineralization and expression of osteogenic transcription factors Runx2, alkaline phosphatase and osteopontin. These effects were not coupled to cell proliferation reduction or to cell death increase, but were associated to decrease in P2X7AR and P2X7BR expression. In contrast, expression of P2X7R, especially P2X7BR isoform, significantly increased during the osteogenic process. Noteworthy, the antagonist A438079, administered alone, at first restrained cell differentiation, enhancing it later. Accordingly, A438079 reversed BzATP effects only in the second phase of S-ASCs osteogenic differentiation. Apyrase, a diphosphohydrolase converting ATP/ADP into AMP, showed a similar behavior. Altogether, findings related to A438079 or apyrase effects suggest an earlier and prevailing pro-osteogenic activity by endogenous ATP and a later one by adenosine derived from endogenous ATP metabolism. Conversely, P2X7R pharmacological stimulation by BzATP, mimicking the effects of high ATP levels occurring during tissue injuries, depressed receptor expression/activity impairing MSC osteogenic differentiation.
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Affiliation(s)
- Marzia Carluccio
- Department of Medical, Oral and Biotechnology Sciences, Section of Pharmacology, University of Chieti-Pescara, Via dei Vestini 29, 66100, Chieti, Italy.,Aging Research Center and Translational Medicine, University of Chieti-Pescara, Chieti, Italy.,StemTeCh Group, Chieti, Italy
| | - Mariachiara Zuccarini
- Department of Medical, Oral and Biotechnology Sciences, Section of Pharmacology, University of Chieti-Pescara, Via dei Vestini 29, 66100, Chieti, Italy.,Aging Research Center and Translational Medicine, University of Chieti-Pescara, Chieti, Italy
| | - Sihana Ziberi
- Department of Medical, Oral and Biotechnology Sciences, Section of Pharmacology, University of Chieti-Pescara, Via dei Vestini 29, 66100, Chieti, Italy.,Aging Research Center and Translational Medicine, University of Chieti-Pescara, Chieti, Italy.,StemTeCh Group, Chieti, Italy
| | - Patricia Giuliani
- Department of Medical, Oral and Biotechnology Sciences, Section of Pharmacology, University of Chieti-Pescara, Via dei Vestini 29, 66100, Chieti, Italy.,Aging Research Center and Translational Medicine, University of Chieti-Pescara, Chieti, Italy
| | - Caterina Morabito
- Aging Research Center and Translational Medicine, University of Chieti-Pescara, Chieti, Italy.,StemTeCh Group, Chieti, Italy.,Department of Neuroscience, Imaging and Clinical Sciences, University of Chieti-Pescara, Chieti, Italy
| | - Maria A Mariggiò
- Aging Research Center and Translational Medicine, University of Chieti-Pescara, Chieti, Italy.,StemTeCh Group, Chieti, Italy.,Department of Neuroscience, Imaging and Clinical Sciences, University of Chieti-Pescara, Chieti, Italy
| | | | - Elena Adinolfi
- Department of Morphology, Surgery end Experimental Medicine, University of Ferrara, Ferrara, Italy
| | - Elisa Orioli
- Department of Morphology, Surgery end Experimental Medicine, University of Ferrara, Ferrara, Italy
| | - Patrizia Di Iorio
- Department of Medical, Oral and Biotechnology Sciences, Section of Pharmacology, University of Chieti-Pescara, Via dei Vestini 29, 66100, Chieti, Italy.,Aging Research Center and Translational Medicine, University of Chieti-Pescara, Chieti, Italy
| | - Francesco Caciagli
- Department of Medical, Oral and Biotechnology Sciences, Section of Pharmacology, University of Chieti-Pescara, Via dei Vestini 29, 66100, Chieti, Italy.,Aging Research Center and Translational Medicine, University of Chieti-Pescara, Chieti, Italy
| | - Renata Ciccarelli
- Department of Medical, Oral and Biotechnology Sciences, Section of Pharmacology, University of Chieti-Pescara, Via dei Vestini 29, 66100, Chieti, Italy. .,Aging Research Center and Translational Medicine, University of Chieti-Pescara, Chieti, Italy. .,StemTeCh Group, Chieti, Italy.
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14
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Carluccio M, Ziberi S, Zuccarini M, Giuliani P, Caciagli F, Di Iorio P, Ciccarelli R. Adult mesenchymal stem cells: is there a role for purine receptors in their osteogenic differentiation? Purinergic Signal 2020; 16:263-287. [PMID: 32500422 DOI: 10.1007/s11302-020-09703-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [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: 11/22/2019] [Accepted: 05/04/2020] [Indexed: 02/06/2023] Open
Abstract
The role played by mesenchymal stem cells (MSCs) in contributing to adult tissue homeostasis and damage repair thanks to their differentiation capabilities has raised a great interest, mainly in bone regenerative medicine. The growth/function of these undifferentiated cells of mesodermal origin, located in specialized structures (niches) of differentiated organs is influenced by substances present in this microenvironment. Among them, ancestral and ubiquitous molecules such as adenine-based purines, i.e., ATP and adenosine, may be included. Notably, extracellular purine concentrations greatly increase during tissue injury; thus, MSCs are exposed to effects mediated by these agents interacting with their own receptors when they act/migrate in vivo or are transplanted into a damaged tissue. Here, we reported that ATP modulates MSC osteogenic differentiation via different P2Y and P2X receptors, but data are often inconclusive/contradictory so that the ATP receptor importance for MSC physiology/differentiation into osteoblasts is yet undetermined. An exception is represented by P2X7 receptors, whose expression was shown at various differentiation stages of bone cells resulting essential for differentiation/survival of both osteoclasts and osteoblasts. As well, adenosine, usually derived from extracellular ATP metabolism, can promote osteogenesis, likely via A2B receptors, even though findings from human MSCs should be implemented and confirmed in preclinical models. Therefore, although many data have revealed possible effects caused by extracellular purines in bone healing/remodeling, further studies, hopefully performed in in vivo models, are necessary to identify defined roles for these compounds in favoring/increasing the pro-osteogenic properties of MSCs and thereby their usefulness in bone regenerative medicine.
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Affiliation(s)
- Marzia Carluccio
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, Via dei Vestini 29, 66100, Chieti, Italy.,Center for Advanced Studies and Technologies (CAST), University of Chieti-Pescara, Via L. Polacchi, 66100, Chieti, Italy.,StemTeCh Group, Via L. Polacchi, 66100, Chieti, Italy
| | - Sihana Ziberi
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, Via dei Vestini 29, 66100, Chieti, Italy.,Center for Advanced Studies and Technologies (CAST), University of Chieti-Pescara, Via L. Polacchi, 66100, Chieti, Italy.,StemTeCh Group, Via L. Polacchi, 66100, Chieti, Italy
| | - Mariachiara Zuccarini
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, Via dei Vestini 29, 66100, Chieti, Italy.,Center for Advanced Studies and Technologies (CAST), University of Chieti-Pescara, Via L. Polacchi, 66100, Chieti, Italy
| | - Patricia Giuliani
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, Via dei Vestini 29, 66100, Chieti, Italy.,Center for Advanced Studies and Technologies (CAST), University of Chieti-Pescara, Via L. Polacchi, 66100, Chieti, Italy
| | - Francesco Caciagli
- Center for Advanced Studies and Technologies (CAST), University of Chieti-Pescara, Via L. Polacchi, 66100, Chieti, Italy
| | - Patrizia Di Iorio
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, Via dei Vestini 29, 66100, Chieti, Italy.,Center for Advanced Studies and Technologies (CAST), University of Chieti-Pescara, Via L. Polacchi, 66100, Chieti, Italy
| | - Renata Ciccarelli
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, Via dei Vestini 29, 66100, Chieti, Italy. .,Center for Advanced Studies and Technologies (CAST), University of Chieti-Pescara, Via L. Polacchi, 66100, Chieti, Italy. .,StemTeCh Group, Via L. Polacchi, 66100, Chieti, Italy.
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15
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Giuliani P, Zuccarini M, Carluccio M, Ziberi S, Di Iorio P, Caciagli F, Ciccarelli R. A New Investigational Perspective for Purines Against Glioblastoma Invasiveness. Curr Drug Targets 2019; 19:1871-1881. [PMID: 29484991 DOI: 10.2174/1389450119666180226123819] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [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: 09/29/2017] [Revised: 01/17/2018] [Accepted: 02/20/2018] [Indexed: 11/22/2022]
Abstract
BACKGROUND Glioblastoma Multiforme (GBM) is the most common and lethal brain malignancy. Recent evidence suggests that the presence of stem-like cells (GSCs) inside the tumor with high self-renewal, resistance to chemotherapy and invasiveness/migration potential is associated with poor GBM prognosis. GSC aggressiveness seems to be linked to an important process involved in tumorigenesis and cancer metastasis called Epithelial-to-Mesenchymal Transition (EMT), which is responsible for several biochemical changes and the acquisition of a more mesenchymal phenotype by GSCs, that enhance their migration, invasiveness and resistance to apoptosis. OBJECTIVE Since previous reports demonstrated that purines, interacting with their own receptors, exerted anti-tumor effects in GBM and derived cells, we tried to investigate the ability of these compounds to reduce tumor cell migration/invasion acting on EMT-associated genes/activators and/or signal pathways. METHODS Search in the literature of relevant articles related to the objective. RESULTS Papers examining the activity of purines on EMT signaling pathways/markers in GSCs are still few whereas literature is more abundant as for other kinds of tumors. CONCLUSION Considering the significance of EMT in GBM aggressiveness and the promising involvement of purines in this process, we think that further research in this regard may open the way towards a new therapeutic approach for the control of GBM invasiveness/recurrence.
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Affiliation(s)
- Patricia Giuliani
- Dept. of Medical, Oral and Biotechnological Sciences. University of Chieti-Pescara, via dei Vestini 29, 66100 Chieti, Italy.,Aging Research Center and Translational Medicine (CeSI-MeT) Chieti, Italy
| | - Mariachiara Zuccarini
- Dept. of Medical, Oral and Biotechnological Sciences. University of Chieti-Pescara, via dei Vestini 29, 66100 Chieti, Italy.,Aging Research Center and Translational Medicine (CeSI-MeT) Chieti, Italy
| | - Marzia Carluccio
- Dept. of Medical, Oral and Biotechnological Sciences. University of Chieti-Pescara, via dei Vestini 29, 66100 Chieti, Italy.,Aging Research Center and Translational Medicine (CeSI-MeT) Chieti, Italy.,StemTech Group, via L. Polacchi 11, 66100 Chieti, Italy
| | - Sihana Ziberi
- Dept. of Medical, Oral and Biotechnological Sciences. University of Chieti-Pescara, via dei Vestini 29, 66100 Chieti, Italy.,Aging Research Center and Translational Medicine (CeSI-MeT) Chieti, Italy.,StemTech Group, via L. Polacchi 11, 66100 Chieti, Italy
| | - Patrizia Di Iorio
- Dept. of Medical, Oral and Biotechnological Sciences. University of Chieti-Pescara, via dei Vestini 29, 66100 Chieti, Italy.,Aging Research Center and Translational Medicine (CeSI-MeT) Chieti, Italy
| | - Francesco Caciagli
- Dept. of Medical, Oral and Biotechnological Sciences. University of Chieti-Pescara, via dei Vestini 29, 66100 Chieti, Italy
| | - Renata Ciccarelli
- Dept. of Medical, Oral and Biotechnological Sciences. University of Chieti-Pescara, via dei Vestini 29, 66100 Chieti, Italy.,Aging Research Center and Translational Medicine (CeSI-MeT) Chieti, Italy.,StemTech Group, via L. Polacchi 11, 66100 Chieti, Italy
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16
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Zuccarini M, Carluccio M, Ziberi S, Giuliani P, Buccella S, Conti C, Ciccarelli R, Di Iorio P. Does the purinergic system affect extracellular matrix functions in the central nervous system? J BIOL REG HOMEOS AG 2018; 32:1349-1353. [PMID: 30574738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Exracellular matrix (ECM) consists of a plethora of proteins and polysaccharides, which aggregate into an organized network connected to the surface of the producing cells. It is structurally and functionally present in all components of tissues and organs and represents the substrate on which cells adhere, migrate, proliferate and differentiate, influencing their survival, shape and function. In response to acute (trauma) or chronic (degenerative) insults, brain ECM modifies its composition and function, actively contributing to "scar forming" gliosis or tissue degeneration/remodelling. Moreover, morphological changes in dendritic spines associated with extracellular matrix remodeling play key roles in rewiring synaptic circuitry pertinent to memory formation. In the present report, we collected the main acquisitions on the functional interplay between ECM alterations and the adenine-/guaninebased purine system with particular regard on how purine compounds and their respective receptors may affect and be affected by changes of the cerebral ECM.
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Affiliation(s)
- M Zuccarini
- Department of Medical, Oral and Biotechnological Sciences, "G. d'Annunzio" University of Chieti-Pescara, Chieti, Italy
- Aging Research Center, Ce.S.I.Me.T., "G. d'Annunzio" University Foundation, Chieti, Italy
| | - M Carluccio
- Department of Medical, Oral and Biotechnological Sciences, "G. d'Annunzio" University of Chieti-Pescara, Chieti, Italy
- Aging Research Center, Ce.S.I.Me.T., "G. d'Annunzio" University Foundation, Chieti, Italy
| | - S Ziberi
- Department of Medical, Oral and Biotechnological Sciences, "G. d'Annunzio" University of Chieti-Pescara, Chieti, Italy
- Aging Research Center, Ce.S.I.Me.T., "G. d'Annunzio" University Foundation, Chieti, Italy
| | - P Giuliani
- Department of Medical, Oral and Biotechnological Sciences, "G. d'Annunzio" University of Chieti-Pescara, Chieti, Italy
- Aging Research Center, Ce.S.I.Me.T., "G. d'Annunzio" University Foundation, Chieti, Italy
| | - S Buccella
- Department of Medical, Oral and Biotechnological Sciences, "G. d'Annunzio" University of Chieti-Pescara, Chieti, Italy
- Aging Research Center, Ce.S.I.Me.T., "G. d'Annunzio" University Foundation, Chieti, Italy
| | - C Conti
- Department of Psychological, Health, and Territorial Sciences, "G. d'Annunzio" University of Chieti-Pescara, Chieti, Italy
| | - R Ciccarelli
- Department of Medical, Oral and Biotechnological Sciences, "G. d'Annunzio" University of Chieti-Pescara, Chieti, Italy
- Aging Research Center, Ce.S.I.Me.T., "G. d'Annunzio" University Foundation, Chieti, Italy
| | - P Di Iorio
- Department of Medical, Oral and Biotechnological Sciences, "G. d'Annunzio" University of Chieti-Pescara, Chieti, Italy
- Aging Research Center, Ce.S.I.Me.T., "G. d'Annunzio" University Foundation, Chieti, Italy
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17
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Zuccarini M, Giuliani P, Frinchi M, Mudò G, Serio RM, Belluardo N, Buccella S, Carluccio M, Condorelli DF, Caciagli F, Ciccarelli R, Di Iorio P. Uncovering the Signaling Pathway behind Extracellular Guanine-Induced Activation of NO System: New Perspectives in Memory-Related Disorders. Front Pharmacol 2018; 9:110. [PMID: 29515443 PMCID: PMC5826394 DOI: 10.3389/fphar.2018.00110] [Citation(s) in RCA: 10] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Accepted: 01/31/2018] [Indexed: 12/31/2022] Open
Abstract
Mounting evidence suggests that the guanine-based purines stand out as key player in cell metabolism and in several models of neurodegenerative disorders, such as Parkinson's and Alzheimer's diseases. Guanosine (GUO) and guanine (GUA) are extracellular signaling molecules derived from the breakdown of the correspondent nucleotide, GTP, and their intracellular and extracellular levels are regulated by the fine-tuned activity of two major enzymes, purine nucleoside phosphorylase (PNP) and guanine deaminase (GDA). Noteworthy, GUO and GUA, seem to play opposite roles in the modulation of cognitive functions, such as learning and memory. Indeed GUO, despite exerting neuroprotective, anti-apoptotic and neurotrophic effects, causes a decay of cognitive activities, whereas GUA administration in rats results in working memory improvement (prevented by L-NAME pre-treatment). This study was designed to investigate, in a model of SH-SY5Y neuroblastoma cell line, the signal transduction pathway activated by extracellular GUA. Altogether, our results showed that: (i) in addition to an enhanced phosphorylation of ASK1, p38 and JNK, likely linked to a non-massive and transient ROS production, the PKB/NO/sGC/cGMP/PKG/ERK cascade seems to be the main signaling pathway elicited by extracellular GUA; (ii) the activation of this pathway occurs in a pertussis-toxin sensitive manner, thus suggesting the involvement of a putative G protein coupled receptor; (iii) the GUA-induced NO production, strongly reduced by cell pre-treatment with L-NAME, is negatively modulated by the EPAC-cAMP-CaMKII pathway, which causes the over-expression of GDA that, in turn, reduces the levels of GUA. These molecular mechanisms activated by GUA may be useful to support our previous observation showing that GUA improves learning and memory functions through the stimulation of NO signaling pathway, and underscore the therapeutic potential of oral administration of guanine for treating memory-related disorders.
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Affiliation(s)
- Mariachiara Zuccarini
- Department of Medical, Oral and Biotechnological Sciences, Università degli Studi “G. d’Annunzio” Chieti-Pescara, Chieti, Italy
- Aging Research Center, Ce.S.I., “G. d’Annunzio” University Foundation, Chieti, Italy
| | - Patricia Giuliani
- Department of Medical, Oral and Biotechnological Sciences, Università degli Studi “G. d’Annunzio” Chieti-Pescara, Chieti, Italy
- Aging Research Center, Ce.S.I., “G. d’Annunzio” University Foundation, Chieti, Italy
| | - Monica Frinchi
- Department of Experimental Biomedicine and Clinical Neurosciences, University of Palermo, Palermo, Italy
| | - Giuseppa Mudò
- Department of Experimental Biomedicine and Clinical Neurosciences, University of Palermo, Palermo, Italy
| | - Rosa Maria Serio
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Palermo, Italy
| | - Natale Belluardo
- Department of Experimental Biomedicine and Clinical Neurosciences, University of Palermo, Palermo, Italy
| | - Silvana Buccella
- Department of Medical, Oral and Biotechnological Sciences, Università degli Studi “G. d’Annunzio” Chieti-Pescara, Chieti, Italy
- Aging Research Center, Ce.S.I., “G. d’Annunzio” University Foundation, Chieti, Italy
| | - Marzia Carluccio
- Department of Medical, Oral and Biotechnological Sciences, Università degli Studi “G. d’Annunzio” Chieti-Pescara, Chieti, Italy
- Aging Research Center, Ce.S.I., “G. d’Annunzio” University Foundation, Chieti, Italy
| | | | - Francesco Caciagli
- Department of Medical, Oral and Biotechnological Sciences, Università degli Studi “G. d’Annunzio” Chieti-Pescara, Chieti, Italy
- Aging Research Center, Ce.S.I., “G. d’Annunzio” University Foundation, Chieti, Italy
| | - Renata Ciccarelli
- Department of Medical, Oral and Biotechnological Sciences, Università degli Studi “G. d’Annunzio” Chieti-Pescara, Chieti, Italy
- Aging Research Center, Ce.S.I., “G. d’Annunzio” University Foundation, Chieti, Italy
| | - Patrizia Di Iorio
- Department of Medical, Oral and Biotechnological Sciences, Università degli Studi “G. d’Annunzio” Chieti-Pescara, Chieti, Italy
- Aging Research Center, Ce.S.I., “G. d’Annunzio” University Foundation, Chieti, Italy
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18
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Zuccarini M, Giuliani P, Ziberi S, Carluccio M, Iorio PD, Caciagli F, Ciccarelli R. The Role of Wnt Signal in Glioblastoma Development and Progression: A Possible New Pharmacological Target for the Therapy of This Tumor. Genes (Basel) 2018; 9:genes9020105. [PMID: 29462960 PMCID: PMC5852601 DOI: 10.3390/genes9020105] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [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: 12/13/2017] [Revised: 02/12/2018] [Accepted: 02/13/2018] [Indexed: 12/26/2022] Open
Abstract
Wnt is a complex signaling pathway involved in the regulation of crucial biological functions such as development, proliferation, differentiation and migration of cells, mainly stem cells, which are virtually present in all embryonic and adult tissues. Conversely, dysregulation of Wnt signal is implicated in development/progression/invasiveness of different kinds of tumors, wherein a certain number of multipotent cells, namely “cancer stem cells”, are characterized by high self-renewal and aggressiveness. Hence, the pharmacological modulation of Wnt pathway could be of particular interest, especially in tumors for which the current standard therapy results to be unsuccessful. This might be the case of glioblastoma multiforme (GBM), one of the most lethal, aggressive and recurrent brain cancers, probably due to the presence of highly malignant GBM stem cells (GSCs) as well as to a dysregulation of Wnt system. By examining the most recent literature, here we point out several factors in the Wnt pathway that are altered in human GBM and derived GSCs, as well as new molecular strategies or experimental drugs able to modulate/inhibit aberrant Wnt signal. Altogether, these aspects serve to emphasize the existence of alternative pharmacological targets that may be useful to develop novel therapies for GBM.
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Affiliation(s)
- Mariachiara Zuccarini
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, via dei Vestini 29, 66100 Chieti, Italy.
- Aging Research Center and Translational Medicine (CeSI-MeT), via L. Polacchi 11, 66100 Chieti, Italy.
| | - Patricia Giuliani
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, via dei Vestini 29, 66100 Chieti, Italy.
- Aging Research Center and Translational Medicine (CeSI-MeT), via L. Polacchi 11, 66100 Chieti, Italy.
| | - Sihana Ziberi
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, via dei Vestini 29, 66100 Chieti, Italy.
- Aging Research Center and Translational Medicine (CeSI-MeT), via L. Polacchi 11, 66100 Chieti, Italy.
- StemTeCh Group, via L. Polacchi 11, 66100 Chieti, Italy.
| | - Marzia Carluccio
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, via dei Vestini 29, 66100 Chieti, Italy.
- Aging Research Center and Translational Medicine (CeSI-MeT), via L. Polacchi 11, 66100 Chieti, Italy.
- StemTeCh Group, via L. Polacchi 11, 66100 Chieti, Italy.
| | - Patrizia Di Iorio
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, via dei Vestini 29, 66100 Chieti, Italy.
- Aging Research Center and Translational Medicine (CeSI-MeT), via L. Polacchi 11, 66100 Chieti, Italy.
| | - Francesco Caciagli
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, via dei Vestini 29, 66100 Chieti, Italy.
- Aging Research Center and Translational Medicine (CeSI-MeT), via L. Polacchi 11, 66100 Chieti, Italy.
| | - Renata Ciccarelli
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, via dei Vestini 29, 66100 Chieti, Italy.
- Aging Research Center and Translational Medicine (CeSI-MeT), via L. Polacchi 11, 66100 Chieti, Italy.
- StemTeCh Group, via L. Polacchi 11, 66100 Chieti, Italy.
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19
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Zizzo MG, Frinchi M, Nuzzo D, Jinnah HA, Mudò G, Condorelli DF, Caciagli F, Ciccarelli R, Di Iorio P, Mulè F, Belluardo N, Serio R. Altered gastrointestinal motility in an animal model of Lesch-Nyhan disease. Auton Neurosci 2017; 210:55-64. [PMID: 29305058 DOI: 10.1016/j.autneu.2017.12.007] [Citation(s) in RCA: 5] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Revised: 12/05/2017] [Accepted: 12/19/2017] [Indexed: 12/18/2022]
Abstract
Mutations in the HGPRT1 gene, which encodes hypoxanthine-guanine phosphoribosyltransferase (HGprt), housekeeping enzyme responsible for recycling purines, lead to Lesch-Nyhan disease (LND). Clinical expression of LND indicates that HGprt deficiency has adverse effects on gastrointestinal motility. Therefore, we aimed to evaluate intestinal motility in HGprt knockout mice (HGprt¯). Spontaneous and neurally evoked mechanical activity was recorded in vitro as changes in isometric tension in circular muscle strips of distal colon. HGprt¯ tissues showed a lower in amplitude spontaneous activity and atropine-sensitivity neural contraction compared to control mice. The responses to carbachol and to high KCl were reduced, demonstrating a widespread impairment of contractility. L-NAME was not able in the HGprt¯ tissues to restore the large amplitude contractile activity typical of control. In HGprt¯ colon, a reduced expression of dopaminergic D1 receptor was observed together with the loss of its tonic inhibitory activity present in control-mice. The analysis of inflammatory and oxidative stress in colonic tissue of HGprt¯ mice revealed a significant increase of lipid peroxidation associated with over production of oxygen free radicals. In conclusion, HGprt deficiency in mice is associated with a decrease in colon contractility, not dependent upon reduction of acetylcholine release from the myenteric plexus or hyperactivity of inhibitory signalling. By contrast the increased levels of oxidative stress could partially explain the reduced colon motility in HGprt¯ mice. Colonic dysmotility observed in HGprt¯ mice may mimic the gastrointestinal dysfunctions symptoms of human syndrome, providing a useful animal model to elucidate the pathophysiology of this problem in the LND.
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Affiliation(s)
- Maria G Zizzo
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Viale delle Scienze, 90128 Palermo, Italy; ATeN (Advanced Technologies Network Center), University of Palermo, Viale delle Scienze, Palermo, Italy
| | - Monica Frinchi
- Department of Experimental Biomedicine and Clinical Neurosciences, University of Palermo, Corso Tukory 129, 90134 Palermo, Italy
| | - Domenico Nuzzo
- Institute of Biomedicine and Molecular Immunology "Alberto Monroy" (IBIM), Consiglio Nazionale delle Ricerche (CNR), Via Ugo la Malfa, 153, 90146 Palermo, Italy
| | - Hyder A Jinnah
- Departments of Neurology, Human Genetics and Pediatrics, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Giuseppa Mudò
- Department of Experimental Biomedicine and Clinical Neurosciences, University of Palermo, Corso Tukory 129, 90134 Palermo, Italy
| | - Daniele F Condorelli
- Department of Bio-Medical Sciences, University of Catania, Via S. Sofia 97, 95100 Catania, Italy
| | - Francesco Caciagli
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, Via dei Vestini 29, Pal. B, 66100 Chieti, Italy
| | - Renata Ciccarelli
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, Via dei Vestini 29, Pal. B, 66100 Chieti, Italy
| | - Patrizia Di Iorio
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, Via dei Vestini 29, Pal. B, 66100 Chieti, Italy
| | - Flavia Mulè
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Viale delle Scienze, 90128 Palermo, Italy
| | - Natale Belluardo
- Department of Experimental Biomedicine and Clinical Neurosciences, University of Palermo, Corso Tukory 129, 90134 Palermo, Italy.
| | - Rosa Serio
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Viale delle Scienze, 90128 Palermo, Italy
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20
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Zuccarini M, Giuliani P, Buccella S, Di Liberto V, Mudò G, Belluardo N, Carluccio M, Rossini M, Condorelli DF, Rathbone MP, Caciagli F, Ciccarelli R, Di Iorio P. Modulation of the TGF-β1-induced epithelial to mesenchymal transition (EMT) mediated by P1 and P2 purine receptors in MDCK cells. Purinergic Signal 2017; 13:429-442. [PMID: 28616713 PMCID: PMC5714834 DOI: 10.1007/s11302-017-9571-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [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: 01/12/2017] [Accepted: 05/29/2017] [Indexed: 12/17/2022] Open
Abstract
Epithelial to mesenchymal transition (EMT) occurs during embryogenesis or under pathological conditions such as hypoxia, injury, chronic inflammation, or tissue fibrosis. In renal tubular epithelial cells (MDCK), TGF-β1 induces EMT by reducing or increasing epithelial or mesenchymal marker expression, respectively. In this study, we confirmed that the cAMP analogues, 8-CPT-cAMP or N6-Ph-cAMP, inhibited the TGF-β1-driven overexpression of the mesenchymal markers ZEB-1, Slug, Fibronectin, and α-SMA. Furthermore, we showed that A1, A2A, P2Y1, P2Y11, and P2X7 purine receptor agonists modulated the TGF-β1-induced EMT through the involvement of PKA and/or MAPK/ERK signaling. The stimulation of A2A receptor reduced the overexpression of the EMT-related markers, mainly through the cAMP-dependent PKA pathway, as confirmed by cell pre-treatment with Myr-PKI. Both A1 and P2Y1 receptor stimulation exacerbated the TGF-β1-driven effects, which were reduced by cell pre-treatment with the MAPK inhibitor PD98059, according to the increased ERK1/2 phosphorylation upon receptor activation. The effects induced by P2Y11 receptor activation were oppositely modulated by PKA or MAPK inhibition, in line with the dual nature of the Gs- and Gq-coupled receptor. Differently, P2X7 receptor induced, per se, similar and not additive effects compared to TGF-β1, after prolonged cell exposure to BzATP. These results suggest a putative role of purine receptors as target for anti-fibrotic agents.
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Affiliation(s)
- Mariachiara Zuccarini
- Department of Medical and Oral Sciences and Biotechnologies, "G.d'Annunzio" University of Chieti-Pescara, Chieti, Italy.
| | - Patricia Giuliani
- Department of Medical and Oral Sciences and Biotechnologies, "G.d'Annunzio" University of Chieti-Pescara, Chieti, Italy
| | - Silvana Buccella
- Department of Medical and Oral Sciences and Biotechnologies, "G.d'Annunzio" University of Chieti-Pescara, Chieti, Italy
| | - Valentina Di Liberto
- Department of Experimental Biomedicine and Clinical Neurosciences, University of Palermo, Palermo, Italy
| | - Giuseppa Mudò
- Department of Experimental Biomedicine and Clinical Neurosciences, University of Palermo, Palermo, Italy
| | - Natale Belluardo
- Department of Experimental Biomedicine and Clinical Neurosciences, University of Palermo, Palermo, Italy
| | - Marzia Carluccio
- Department of Medical and Oral Sciences and Biotechnologies, "G.d'Annunzio" University of Chieti-Pescara, Chieti, Italy
| | - Margherita Rossini
- Department of Medical and Oral Sciences and Biotechnologies, "G.d'Annunzio" University of Chieti-Pescara, Chieti, Italy
| | | | - Michel Piers Rathbone
- Department of Medicine, Division of Neurology, McMaster University, Hamilton, ON, Canada
| | - Francesco Caciagli
- Department of Medical and Oral Sciences and Biotechnologies, "G.d'Annunzio" University of Chieti-Pescara, Chieti, Italy
| | - Renata Ciccarelli
- Department of Medical and Oral Sciences and Biotechnologies, "G.d'Annunzio" University of Chieti-Pescara, Chieti, Italy
| | - Patrizia Di Iorio
- Department of Medical and Oral Sciences and Biotechnologies, "G.d'Annunzio" University of Chieti-Pescara, Chieti, Italy
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21
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Peña-Altamira LE, Polazzi E, Giuliani P, Beraudi A, Massenzio F, Mengoni I, Poli A, Zuccarini M, Ciccarelli R, Di Iorio P, Virgili M, Monti B, Caciagli F. Release of soluble and vesicular purine nucleoside phosphorylase from rat astrocytes and microglia induced by pro-inflammatory stimulation with extracellular ATP via P2X 7 receptors. Neurochem Int 2017; 115:37-49. [PMID: 29061383 DOI: 10.1016/j.neuint.2017.10.010] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Revised: 10/12/2017] [Accepted: 10/18/2017] [Indexed: 12/31/2022]
Abstract
Purine nucleoside phosphorylase (PNP), a crucial enzyme in purine metabolism which converts ribonucleosides into purine bases, has mainly been found inside glial cells. Since we recently demonstrated that PNP is released from rat C6 glioma cells, we then wondered whether this occurs in normal brain cells. Using rat primary cultures of microglia, astrocytes and cerebellar granule neurons, we found that in basal condition all these cells constitutively released a metabolically active PNP with Km values very similar to those measured in C6 glioma cells. However, the enzyme expression/release was greater in microglia or astrocytes that in neurons. Moreover, we exposed primary brain cell cultures to pro-inflammatory agents such as lipopolysaccharide (LPS) or ATP alone or in combination. LPS alone caused an increased interleukin-1β (IL-1β) secretion mainly from microglia and no modification in the PNP release, even from neurons in which it enhanced cell death. In contrast, ATP administered alone to glial cells at high micromolar concentrations significantly stimulated the release of PNP within 1 h, an effect not modified by LPS presence, whereas IL-1β secretion was stimulated by ATP only in cells primed for 2 h with LPS. In both cases ATP effect was mediated by P2X7 receptor (P2X7R), since it was mimicked by cell exposure to Bz-ATP, an agonist of P2X7R, and blocked by cell pre-treatment with the P2X7R antagonist A438079. Interestingly, ATP-induced PNP release from glial cells partly occurred through the secretion of lysosomal vesicles in the extracellular medium. Thus, during inflammatory cerebral events PNP secretion promoted by extracellular ATP accumulation might concur to control extracellular purine signals. Further studies could elucidate whether, in these conditions, a consensual activity of enzymes downstream of PNP in the purine metabolic cascade avoids accumulation of extracellular purine bases that might concur to brain injury by unusual formation of reactive oxygen species.
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Affiliation(s)
| | - Elisabetta Polazzi
- Department of Pharmacy and Bio-Technology, University of Bologna, Via Selmi 3, 40126 Bologna, Italy
| | - Patricia Giuliani
- Department of Medical, Oral and Biotechnology Sciences, University of Chieti-Pescara, Via dei Vestini 29, 66100 Chieti, Italy; Aging Research Center and Translational Medicine (CeSI-MeT), University of Chieti-Pescara, Via dei Vestini 29, 66100 Chieti, Italy
| | - Alina Beraudi
- Department of Pharmacy and Bio-Technology, University of Bologna, Via Selmi 3, 40126 Bologna, Italy
| | - Francesca Massenzio
- Department of Pharmacy and Bio-Technology, University of Bologna, Via Selmi 3, 40126 Bologna, Italy
| | - Ilaria Mengoni
- Department of Pharmacy and Bio-Technology, University of Bologna, Via Selmi 3, 40126 Bologna, Italy
| | - Alessandro Poli
- Department of Pharmacy and Bio-Technology, University of Bologna, Via Selmi 3, 40126 Bologna, Italy
| | - Mariachiara Zuccarini
- Department of Medical, Oral and Biotechnology Sciences, University of Chieti-Pescara, Via dei Vestini 29, 66100 Chieti, Italy; Aging Research Center and Translational Medicine (CeSI-MeT), University of Chieti-Pescara, Via dei Vestini 29, 66100 Chieti, Italy
| | - Renata Ciccarelli
- Department of Medical, Oral and Biotechnology Sciences, University of Chieti-Pescara, Via dei Vestini 29, 66100 Chieti, Italy; Aging Research Center and Translational Medicine (CeSI-MeT), University of Chieti-Pescara, Via dei Vestini 29, 66100 Chieti, Italy.
| | - Patrizia Di Iorio
- Department of Medical, Oral and Biotechnology Sciences, University of Chieti-Pescara, Via dei Vestini 29, 66100 Chieti, Italy; Aging Research Center and Translational Medicine (CeSI-MeT), University of Chieti-Pescara, Via dei Vestini 29, 66100 Chieti, Italy
| | - Marco Virgili
- Department of Pharmacy and Bio-Technology, University of Bologna, Via Selmi 3, 40126 Bologna, Italy
| | - Barbara Monti
- Department of Pharmacy and Bio-Technology, University of Bologna, Via Selmi 3, 40126 Bologna, Italy
| | - Francesco Caciagli
- Department of Medical, Oral and Biotechnology Sciences, University of Chieti-Pescara, Via dei Vestini 29, 66100 Chieti, Italy; Aging Research Center and Translational Medicine (CeSI-MeT), University of Chieti-Pescara, Via dei Vestini 29, 66100 Chieti, Italy
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22
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Giuliani P, Zuccarini M, Buccella S, Peña-Altamira LE, Polazzi E, Virgili M, Monti B, Poli A, Rathbone MP, Di Iorio P, Ciccarelli R, Caciagli F. Evidence for purine nucleoside phosphorylase (PNP) release from rat C6 glioma cells. J Neurochem 2017; 141:208-221. [PMID: 28251649 DOI: 10.1111/jnc.14004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Revised: 02/10/2017] [Accepted: 02/10/2017] [Indexed: 12/26/2022]
Abstract
Intracellular purine turnover is mainly oriented to preserving the level of triphosphate nucleotides, fundamental molecules in vital cell functions that, when released outside cells, act as receptor signals. Conversely, high levels of purine bases and uric acid are found in the extracellular milieu, even in resting conditions. These compounds could derive from nucleosides/bases that, having escaped to cell reuptake, are metabolized by extracellular enzymes similar to the cytosolic ones. Focusing on purine nucleoside phosphorylase (PNP) that catalyzes the reversible phosphorolysis of purine (deoxy)-nucleosides/bases, we found that it is constitutively released from cultured rat C6 glioma cells into the medium, and has a molecular weight and enzyme activity similar to the cytosolic enzyme. Cell exposure to 10 μM ATP or guanosine triphosphate (GTP) increased the extracellular amount of all corresponding purines without modifying the levels/activity of released PNP, whereas selective activation of ATP P2Y1 or adenosine A2A metabotropic receptors increased PNP release and purine base formation. The reduction to 1% in oxygen supply (2 h) to cells decreased the levels of released PNP, leading to an increased presence of extracellular nucleosides and to a reduced formation of xanthine and uric acid. Conversely, 2 h cell re-oxygenation enhanced the extracellular amounts of both PNP and purine bases. Thus, hypoxia and re-oxygenation modulated in opposite manner the PNP release/activity and, thereby, the extracellular formation of purine metabolism end-products. In conclusion, extracellular PNP and likely other enzymes deputed to purine base metabolism are released from cells, contributing to the purinergic system homeostasis and exhibiting an important pathophysiological role.
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Affiliation(s)
- Patricia Giuliani
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, Chieti, Italy.,Aging Research Center and Translational Medicine (CeSI-MeT), University of Chieti-Pescara, Chieti, Italy
| | - Mariachiara Zuccarini
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, Chieti, Italy.,Aging Research Center and Translational Medicine (CeSI-MeT), University of Chieti-Pescara, Chieti, Italy
| | - Silvana Buccella
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, Chieti, Italy.,Aging Research Center and Translational Medicine (CeSI-MeT), University of Chieti-Pescara, Chieti, Italy
| | | | - Elisabetta Polazzi
- Department of Pharmacy and Biotechnology, University of Bologna, Bologna, Italy
| | - Marco Virgili
- Department of Pharmacy and Biotechnology, University of Bologna, Bologna, Italy
| | - Barbara Monti
- Department of Pharmacy and Biotechnology, University of Bologna, Bologna, Italy
| | - Alessandro Poli
- Department of Pharmacy and Biotechnology, University of Bologna, Bologna, Italy
| | - Michel P Rathbone
- Department of Medicine, Division of Neurology, McMaster University - Juravinski Hospital, Hamilton, Ontario, Canada
| | - Patrizia Di Iorio
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, Chieti, Italy.,Aging Research Center and Translational Medicine (CeSI-MeT), University of Chieti-Pescara, Chieti, Italy
| | - Renata Ciccarelli
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, Chieti, Italy.,Aging Research Center and Translational Medicine (CeSI-MeT), University of Chieti-Pescara, Chieti, Italy
| | - Francesco Caciagli
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, Chieti, Italy.,Aging Research Center and Translational Medicine (CeSI-MeT), University of Chieti-Pescara, Chieti, Italy
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23
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D'Alimonte I, Mastrangelo F, Giuliani P, Pierdomenico L, Marchisio M, Zuccarini M, Di Iorio P, Quaresima R, Caciagli F, Ciccarelli R. Osteogenic Differentiation of Mesenchymal Stromal Cells: A Comparative Analysis Between Human Subcutaneous Adipose Tissue and Dental Pulp. Stem Cells Dev 2017; 26:843-855. [DOI: 10.1089/scd.2016.0190] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Affiliation(s)
- Iolanda D'Alimonte
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, Chieti, Italy
- Department of Aging Research Center and Translational Medicine (CeSI-MeT), University of Chieti-Pescara, Chieti, Italy
- StemTeCh Group, Chieti, Italy
| | - Filiberto Mastrangelo
- Unit of Dentistry, IRCCS San Raffaele Scientific Institute, Vita e Salute University, Milano, Italy
| | - Patricia Giuliani
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, Chieti, Italy
| | - Laura Pierdomenico
- Department of Medicine and Aging Science, University of Chieti-Pescara, Chieti, Italy
- Department of Aging Research Center and Translational Medicine (CeSI-MeT), University of Chieti-Pescara, Chieti, Italy
- StemTeCh Group, Chieti, Italy
| | - Marco Marchisio
- Department of Medicine and Aging Science, University of Chieti-Pescara, Chieti, Italy
- Department of Aging Research Center and Translational Medicine (CeSI-MeT), University of Chieti-Pescara, Chieti, Italy
- StemTeCh Group, Chieti, Italy
| | - Mariachiara Zuccarini
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, Chieti, Italy
- Department of Aging Research Center and Translational Medicine (CeSI-MeT), University of Chieti-Pescara, Chieti, Italy
| | - Patrizia Di Iorio
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, Chieti, Italy
| | - Raimondo Quaresima
- Department of Civil Engineering, Architecture and Environment, University of L'Aquila, L'Aquila, Italy
| | - Francesco Caciagli
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, Chieti, Italy
| | - Renata Ciccarelli
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, Chieti, Italy
- Department of Aging Research Center and Translational Medicine (CeSI-MeT), University of Chieti-Pescara, Chieti, Italy
- StemTeCh Group, Chieti, Italy
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24
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Ballerini P, Di Iorio P, Ciccarelli R, Caciagli F, Poli A, Beraudi A, Buccella S, D'Alimonte I, D'Auro M, Nargi E, Patricelli P, Visini D, Traversa U. P2Y1 and Cysteinyl Leukotriene Receptors Mediate Purine and Cysteinyl Leukotriene Co-Release in Primary Cultures of Rat Microglia. Int J Immunopathol Pharmacol 2016; 18:255-68. [PMID: 15888248 DOI: 10.1177/039463200501800208] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Inflammation is widely recognized as contributing to the pathology of acute and chronic neurodegenerative conditions. Microglial cells are pathologic sensors in the brain and activated microglia have been viewed as detrimental. Leukotriene, including cysteinyl leukotrienes (CysLTs) are suggested to be involved in brain inflammation and neurological diseases and ATP, by its receptors is a candidate for microglia activation. A23187 (10μM) stimulated microglia to co-release CysLTs and [3H]adenine based purines ([3H]ABPs), mainly ATP. The biosynthetic production of CysLTs was abolished by 10μM MK-886, an inhibitor of 5-lipoxygenase-activating protein activity. RT-PCR analysis showed that microglia expressed both CysLT1 / CysLT2 receptors, P2Y1 ATP-receptors and several members of the ATP binding cassette (ABC) transporters including MRP1, MRP4 and Pgp. The increase in [Ca2+]i elicited by LTD4 (0.1 μM) and 2MeSATP (100μM), agonists for CysLT- and P2Y1-receptors, was abolished by the respective antagonists, BAYu9773 (0.5 μM) and suramin (50 μM). The stimulation of both receptor subtypes, induced a concomitant increase in the release of both [3H]ABPs and CysLTs that was blocked by the antagonists and significantly reduced by a cocktail of ABC transporter inhibitors, BAPTA/AM (intracellular Ca2+ chelator) and staurosporine (0.1 μM, PKC blocker). P2Y antagonist was unable to antagonise the effects of LTD4 and BAYu9773 did not reduce the effects of 2MeSATP. These data suggest that: i) the efflux of purines and cysteinyl-leukotrienes is specifically and independently controlled by the two receptor types, ii) calcium, PKC and the ABC transporter system can reasonably be considered common mechanisms underlying the release of ABPs and CysLTs from microglia. The blockade of P2Y1 or CysLT1/CysLT2 receptors by specific antagonists that abolished the raise in [Ca2+]i and drastically reduced the concomitant efflux of both compounds, as well as the effects of BAPTA and staurosporine support this hypothesis. In conclusion, the data of the present study suggest a cross talk between the purine and leukotriene systems in a possible autocrine/paracrine control of the microglia-mediated initiation and progression of an inflammatory response.
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Affiliation(s)
- P Ballerini
- Department of Biomedical Sciences, G. D'Annunzio University of Chieti, Italy.
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25
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Di Liberto V, Mudò G, Garozzo R, Frinchi M, Fernandez-Dueñas V, Di Iorio P, Ciccarelli R, Caciagli F, Condorelli DF, Ciruela F, Belluardo N. The Guanine-Based Purinergic System: The Tale of An Orphan Neuromodulation. Front Pharmacol 2016; 7:158. [PMID: 27378923 PMCID: PMC4911385 DOI: 10.3389/fphar.2016.00158] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [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: 04/12/2016] [Accepted: 05/30/2016] [Indexed: 11/17/2022] Open
Abstract
Guanine-based purines (GBPs) have been recently proposed to be not only metabolic agents but also extracellular signaling molecules that regulate important functions in the central nervous system. In such way, GBPs-mediated neuroprotection, behavioral responses and neuronal plasticity have been broadly described in the literature. However, while a number of these functions (i.e., GBPs neurothophic effects) have been well-established, the molecular mechanisms behind these GBPs-dependent effects are still unknown. Furthermore, no plasma membrane receptors for GBPs have been described so far, thus GBPs are still considered orphan neuromodulators. Interestingly, an intricate and controversial functional interplay between GBPs effects and adenosine receptors activity has been recently described, thus triggering the hypothesis that GBPs mechanism of action might somehow involve adenosine receptors. Here, we review recent data describing the GBPs role in the brain. We focus on the involvement of GBPs regulating neuronal plasticity, and on the new hypothesis based on putative GBPs receptors. Overall, we expect to shed some light on the GBPs world since although these molecules might represent excellent candidates for certain neurological diseases management, the lack of putative GBPs receptors precludes any high throughput screening intent for the search of effective GBPs-based drugs.
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Affiliation(s)
- Valentina Di Liberto
- Department of Experimental Biomedicine and Clinical Neurosciences, University of Palermo Palermo, Italy
| | - Giuseppa Mudò
- Department of Experimental Biomedicine and Clinical Neurosciences, University of Palermo Palermo, Italy
| | - Roberta Garozzo
- Department of Biomedical and Biotechnological Sciences, Unit of Medical Biochemistry, University of Catania Catania, Italy
| | - Monica Frinchi
- Department of Experimental Biomedicine and Clinical Neurosciences, University of Palermo Palermo, Italy
| | - Víctor Fernandez-Dueñas
- Department of Pathology and Experimental Therapeutics, Faculty of Medicine, Bellvitge Biomedical Research Institute, Institute of Neurosciences, University of Barcelona Barcelona, Spain
| | - Patrizia Di Iorio
- Department of Medical, Oral and Biotecnological Sciences, University of Chieti-Pescara Chieti, Italy
| | - Renata Ciccarelli
- Department of Medical, Oral and Biotecnological Sciences, University of Chieti-Pescara Chieti, Italy
| | - Francesco Caciagli
- Department of Medical, Oral and Biotecnological Sciences, University of Chieti-Pescara Chieti, Italy
| | - Daniele F Condorelli
- Department of Biomedical and Biotechnological Sciences, Unit of Medical Biochemistry, University of Catania Catania, Italy
| | - Francisco Ciruela
- Department of Pathology and Experimental Therapeutics, Faculty of Medicine, Bellvitge Biomedical Research Institute, Institute of Neurosciences, University of Barcelona Barcelona, Spain
| | - Natale Belluardo
- Department of Experimental Biomedicine and Clinical Neurosciences, University of Palermo Palermo, Italy
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26
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Marzo M, Ciccarelli R, Di Iorio P, Giuliani P, Caciagli F, Marzo A. Synergic development of pharmacokinetics and bioanalytical methods as support of pharmaceutical research. Int J Immunopathol Pharmacol 2016; 29:168-79. [PMID: 26684641 PMCID: PMC5806721 DOI: 10.1177/0394632015589531] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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: 01/09/2015] [Accepted: 05/05/2015] [Indexed: 11/15/2022] Open
Abstract
The development of pharmacokinetics led this science to achieve a relevant role in the investigation of new chemical entities for therapeutic application, and has allowed a series of new useful realizations of out of patent drugs like prolonged release and delayed release formulations, therapeutic delivery system (TDS) for drugs to be active in systemic circulation avoiding the first pass effect, orodispersible and effervescent formulations, intramuscular and subcutaneous depot formulations acting over a long period, oral inhalatory systems, and drug association at fixed dose. The above applications had pharmacokinetics as protagonist and have required the support from bioanalytical methods to assay drug concentrations, even in pg·mL(-1) of plasma, that really have paralleled the synergic development of pharmacokinetics.The complexity of the above realizations required specific guidelines from the regulatory authorities, mainly the US FDA and EU EMA, which have normalized and, in most cases, simplified the above applications admitting some waivers of in vivo bioequivalence.However, this review highlights some critical points, not yet focused on by operating guidelines, which need to be clarified by regulatory authorities. One of the most relevant issues is about the planning and conducting bioavailability and bioequivalence trials with endogenous substances, that possess own homeostatic equilibria with fluctuations, in some cases with specific rhythms, like melatonin and female sex hormones. The baseline subtraction required by guidelines to define the net contribute to the exogenous absorbed drug in most cases is a non-solvable problem.
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Affiliation(s)
- M Marzo
- Department of Medical, Oral e Biotechnological Sciences, "G. d'Annunzio" University of Chieti-Pescara, Via dei Vestini 31, I-66013, Chieti, Italy
| | - R Ciccarelli
- Department of Medical, Oral e Biotechnological Sciences, "G. d'Annunzio" University of Chieti-Pescara, Via dei Vestini 31, I-66013, Chieti, Italy
| | - P Di Iorio
- Department of Medical, Oral e Biotechnological Sciences, "G. d'Annunzio" University of Chieti-Pescara, Via dei Vestini 31, I-66013, Chieti, Italy
| | - P Giuliani
- Department of Medical, Oral e Biotechnological Sciences, "G. d'Annunzio" University of Chieti-Pescara, Via dei Vestini 31, I-66013, Chieti, Italy
| | - F Caciagli
- Department of Medical, Oral e Biotechnological Sciences, "G. d'Annunzio" University of Chieti-Pescara, Via dei Vestini 31, I-66013, Chieti, Italy
| | - A Marzo
- Department of Medical, Oral e Biotechnological Sciences, "G. d'Annunzio" University of Chieti-Pescara, Via dei Vestini 31, I-66013, Chieti, Italy
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27
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Giuliani P, Zuccarini M, Buccella S, Rossini M, D'Alimonte I, Ciccarelli R, Marzo M, Marzo A, Di Iorio P, Caciagli F. Development of a new HPLC method using fluorescence detection without derivatization for determining purine nucleoside phosphorylase activity in human plasma. J Chromatogr B Analyt Technol Biomed Life Sci 2015; 1009-1010:114-21. [PMID: 26720700 DOI: 10.1016/j.jchromb.2015.12.012] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [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: 05/08/2015] [Revised: 12/02/2015] [Accepted: 12/07/2015] [Indexed: 01/07/2023]
Abstract
Purine nucleoside phosphorylase (PNP) activity is involved in cell survival and function, since PNP is a key enzyme in the purine metabolic pathway where it catalyzes the phosphorolysis of the nucleosides to the corresponding nucleobases. Its dysfunction has been found in relevant pathological conditions (such as inflammation and cancer), so the detection of PNP activity in plasma could represent an attractive marker for early diagnosis or assessment of disease progression. Thus the aim of this study was to develop a simple, fast and sensitive HPLC method for the determination of PNP activity in plasma. The separation was achieved on a Phenomenex Kinetex PFP column using 0.1% formic acid in water and methanol as mobile phases in gradient elution mode at a flow rate of 1ml/min and purine compounds were detected using UV absorption and fluorescence. The analysis was fast since the run was achieved within 13min. This method improved the separation of the different purines, allowing the UV-based quantification of the natural PNP substrates (inosine and guanosine) or products (hypoxanthine and guanine) and its subsequent metabolic products (xanthine and uric acid) with a good precision and accuracy. The most interesting innovation is the simultaneous use of a fluorescence detector (excitation/emission wavelength of 260/375nm) that allowed the quantification of guanosine and guanine without derivatization. Compared with UV, the fluorescence detection improved the sensitivity for guanine detection by about 10-fold and abolished almost completely the baseline noise due to the presence of plasma in the enzymatic reaction mixture. Thus, the validated method allowed an excellent evaluation of PNP activity in plasma which could be useful as an indicator of several pathological conditions.
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Affiliation(s)
- Patricia Giuliani
- Department of Medical, Oral and Biotechnological Sciences, Laboratory of Pharmacology and Toxicology, University of Chieti-Pescara, Via dei Vestini 29, 66013 Chieti, Italy.
| | - Mariachiara Zuccarini
- Department of Medical, Oral and Biotechnological Sciences, Laboratory of Pharmacology and Toxicology, University of Chieti-Pescara, Via dei Vestini 29, 66013 Chieti, Italy.
| | - Silvana Buccella
- Department of Medical, Oral and Biotechnological Sciences, Laboratory of Pharmacology and Toxicology, University of Chieti-Pescara, Via dei Vestini 29, 66013 Chieti, Italy.
| | - Margherita Rossini
- Department of Medical, Oral and Biotechnological Sciences, Laboratory of Pharmacology and Toxicology, University of Chieti-Pescara, Via dei Vestini 29, 66013 Chieti, Italy.
| | - Iolanda D'Alimonte
- Department of Medical, Oral and Biotechnological Sciences, Laboratory of Pharmacology and Toxicology, University of Chieti-Pescara, Via dei Vestini 29, 66013 Chieti, Italy.
| | - Renata Ciccarelli
- Department of Medical, Oral and Biotechnological Sciences, Laboratory of Pharmacology and Toxicology, University of Chieti-Pescara, Via dei Vestini 29, 66013 Chieti, Italy.
| | - Matteo Marzo
- Department of Medical, Oral and Biotechnological Sciences, Laboratory of Pharmacology and Toxicology, University of Chieti-Pescara, Via dei Vestini 29, 66013 Chieti, Italy.
| | - Antonio Marzo
- Department of Medical, Oral and Biotechnological Sciences, Laboratory of Pharmacology and Toxicology, University of Chieti-Pescara, Via dei Vestini 29, 66013 Chieti, Italy.
| | - Patrizia Di Iorio
- Department of Medical, Oral and Biotechnological Sciences, Laboratory of Pharmacology and Toxicology, University of Chieti-Pescara, Via dei Vestini 29, 66013 Chieti, Italy.
| | - Francesco Caciagli
- Department of Medical, Oral and Biotechnological Sciences, Laboratory of Pharmacology and Toxicology, University of Chieti-Pescara, Via dei Vestini 29, 66013 Chieti, Italy.
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28
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Pipino C, Pierdomenico L, Di Tomo P, Di Giuseppe F, Cianci E, D'Alimonte I, Morabito C, Centurione L, Antonucci I, Mariggiò MA, Di Pietro R, Ciccarelli R, Marchisio M, Romano M, Angelucci S, Pandolfi A. Molecular and phenotypic characterization of human amniotic fluid-derived cells: a morphological and proteomic approach. Stem Cells Dev 2015; 24:1415-28. [PMID: 25608581 DOI: 10.1089/scd.2014.0453] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Mesenchymal Stem Cells derived from Amniotic Fluid (AFMSCs) are multipotent cells of great interest for regenerative medicine. Two predominant cell types, that is, Epithelial-like (E-like) and Fibroblast-like (F-like), have been previously detected in the amniotic fluid (AF). In this study, we examined the AF from 12 donors and observed the prevalence of the E-like phenotype in 5, whereas the F-like morphology was predominant in 7 samples. These phenotypes showed slight differences in membrane markers, with higher CD90 and lower Sox2 and SSEA-4 expression in F-like than in E-like cells; whereas CD326 was expressed only in the E-like phenotype. They did not show any significant differences in osteogenic, adipogenic or chondrogenic differentiation. Proteomic analysis revealed that samples with a predominant E-like phenotype (HC1) showed a different profile than those with a predominant F-like phenotype (HC2). Twenty-five and eighteen protein spots were differentially expressed in HC1 and HC2 classes, respectively. Of these, 17 from HC1 and 4 from HC2 were identified by mass spectrometry. Protein-interaction networks for both phenotypes showed strong interactions between specific AFMSC proteins and molecular chaperones, such as preproteasomes and mature proteasomes, both of which are important for cell cycle regulation and apoptosis. Collectively, our results provide evidence that, regardless of differences in protein profiling, the prevalence of E-like or F-like cells in AF does not affect the differentiation capacity of AFMSC preparations. This may be valuable information with a view to the therapeutic use of AFMSCs.
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Affiliation(s)
- Caterina Pipino
- 1Department of Medical, Oral and Biotechnological Sciences, School of Medicine and Health Sciences "G. d'Annunzio" University Chieti-Pescara, Chieti, Italy
- 2Aging Research Center (Ce.S.I.), "Università G. d'Annunzio" Foundation, Chieti, Italy
- 3StemTeCh Group, Chieti, Italy
| | - Laura Pierdomenico
- 2Aging Research Center (Ce.S.I.), "Università G. d'Annunzio" Foundation, Chieti, Italy
- 3StemTeCh Group, Chieti, Italy
- 4Department of Medicine and Aging Science, School of Medicine and Health Sciences "G. d'Annunzio" University Chieti-Pescara, Chieti, Italy
| | - Pamela Di Tomo
- 1Department of Medical, Oral and Biotechnological Sciences, School of Medicine and Health Sciences "G. d'Annunzio" University Chieti-Pescara, Chieti, Italy
- 2Aging Research Center (Ce.S.I.), "Università G. d'Annunzio" Foundation, Chieti, Italy
- 3StemTeCh Group, Chieti, Italy
| | - Fabrizio Di Giuseppe
- 1Department of Medical, Oral and Biotechnological Sciences, School of Medicine and Health Sciences "G. d'Annunzio" University Chieti-Pescara, Chieti, Italy
- 2Aging Research Center (Ce.S.I.), "Università G. d'Annunzio" Foundation, Chieti, Italy
- 3StemTeCh Group, Chieti, Italy
| | - Eleonora Cianci
- 1Department of Medical, Oral and Biotechnological Sciences, School of Medicine and Health Sciences "G. d'Annunzio" University Chieti-Pescara, Chieti, Italy
- 2Aging Research Center (Ce.S.I.), "Università G. d'Annunzio" Foundation, Chieti, Italy
- 3StemTeCh Group, Chieti, Italy
| | - Iolanda D'Alimonte
- 1Department of Medical, Oral and Biotechnological Sciences, School of Medicine and Health Sciences "G. d'Annunzio" University Chieti-Pescara, Chieti, Italy
- 3StemTeCh Group, Chieti, Italy
| | - Caterina Morabito
- 2Aging Research Center (Ce.S.I.), "Università G. d'Annunzio" Foundation, Chieti, Italy
- 3StemTeCh Group, Chieti, Italy
- 5Department of Neuroscience and Imaging, School of Medicine and Health Sciences "G. d'Annunzio" University Chieti-Pescara, Chieti, Italy
| | - Lucia Centurione
- 3StemTeCh Group, Chieti, Italy
- 4Department of Medicine and Aging Science, School of Medicine and Health Sciences "G. d'Annunzio" University Chieti-Pescara, Chieti, Italy
| | - Ivana Antonucci
- 3StemTeCh Group, Chieti, Italy
- 6Psychological Sciences Humanities and Territory, School of Medicine and Health Sciences "G. d'Annunzio" University Chieti-Pescara, Chieti, Italy
| | - Maria A Mariggiò
- 2Aging Research Center (Ce.S.I.), "Università G. d'Annunzio" Foundation, Chieti, Italy
- 3StemTeCh Group, Chieti, Italy
- 5Department of Neuroscience and Imaging, School of Medicine and Health Sciences "G. d'Annunzio" University Chieti-Pescara, Chieti, Italy
| | - Roberta Di Pietro
- 3StemTeCh Group, Chieti, Italy
- 4Department of Medicine and Aging Science, School of Medicine and Health Sciences "G. d'Annunzio" University Chieti-Pescara, Chieti, Italy
| | - Renata Ciccarelli
- 1Department of Medical, Oral and Biotechnological Sciences, School of Medicine and Health Sciences "G. d'Annunzio" University Chieti-Pescara, Chieti, Italy
- 3StemTeCh Group, Chieti, Italy
| | - Marco Marchisio
- 2Aging Research Center (Ce.S.I.), "Università G. d'Annunzio" Foundation, Chieti, Italy
- 3StemTeCh Group, Chieti, Italy
- 4Department of Medicine and Aging Science, School of Medicine and Health Sciences "G. d'Annunzio" University Chieti-Pescara, Chieti, Italy
| | - Mario Romano
- 1Department of Medical, Oral and Biotechnological Sciences, School of Medicine and Health Sciences "G. d'Annunzio" University Chieti-Pescara, Chieti, Italy
- 2Aging Research Center (Ce.S.I.), "Università G. d'Annunzio" Foundation, Chieti, Italy
- 3StemTeCh Group, Chieti, Italy
| | - Stefania Angelucci
- 1Department of Medical, Oral and Biotechnological Sciences, School of Medicine and Health Sciences "G. d'Annunzio" University Chieti-Pescara, Chieti, Italy
- 2Aging Research Center (Ce.S.I.), "Università G. d'Annunzio" Foundation, Chieti, Italy
- 3StemTeCh Group, Chieti, Italy
| | - Assunta Pandolfi
- 1Department of Medical, Oral and Biotechnological Sciences, School of Medicine and Health Sciences "G. d'Annunzio" University Chieti-Pescara, Chieti, Italy
- 2Aging Research Center (Ce.S.I.), "Università G. d'Annunzio" Foundation, Chieti, Italy
- 3StemTeCh Group, Chieti, Italy
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D'Alimonte I, Nargi E, Zuccarini M, Lanuti P, Di Iorio P, Giuliani P, Ricci-Vitiani L, Pallini R, Caciagli F, Ciccarelli R. Potentiation of temozolomide antitumor effect by purine receptor ligands able to restrain the in vitro growth of human glioblastoma stem cells. Purinergic Signal 2015; 11:331-46. [PMID: 25976165 DOI: 10.1007/s11302-015-9454-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2014] [Accepted: 05/06/2015] [Indexed: 12/22/2022] Open
Abstract
Glioblastoma multiforme (GBM), the most common and aggressive brain tumor in humans, comprises a population of stem-like cells (GSCs) that are currently investigated as potential target for GBM therapy. Here, we used GSCs isolated from three different GBM surgical specimens to examine the antitumor activity of purines. Cultured GSCs expressed either metabotropic adenosine P1 and ATP P2Y receptors or ionotropic P2X7 receptors. GSC exposure for 48 h to 10-150 μM ATP, P2R ligand, or to ADPβS or MRS2365, P2Y1R agonists, enhanced cell expansion. This effect was counteracted by the PY1R antagonist MRS2500. In contrast, 48-h treatment with higher doses of ATP or UTP, which binds to P2Y2/4R, or 2'(3')-O-(4-benzoylbenzoyl)-ATP (Bz-ATP), P2X7R agonist, decreased GSC proliferation. Such a reduction was due to apoptotic or necrotic cell death but mostly to growth arrest. Accordingly, cell regrowth and secondary neurosphere formation were observed 2 weeks after the end of treatment. Suramin, nonselective P2R antagonist, MRS1220 or AZ11645373, selective A3R or P2X7R antagonists, respectively, counteracted ATP antiproliferative effects. AZ11645373 also abolished the inhibitory effect of Bz-ATP low doses on GSC growth. These findings provide important clues on the anticancer potential of ligands for A3R, P2Y1R, and P2X7R, which are involved in the GSC growth control. Interestingly, ATP and BzATP potentiated the cytotoxicity of temozolomide (TMZ), currently used for GBM therapy, enabling it to cause a greater and long-lasting inhibitory effect on GSC duplication when readded to cells previously treated with purine nucleotides plus TMZ. These are the first findings identifying purine nucleotides as able to enhance TMZ antitumor efficacy and might have an immediate translational impact.
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Affiliation(s)
- Iolanda D'Alimonte
- Department of Medical, Oral and Biotechnology Sciences, University of Chieti-Pescara, via dei Vestini 29, 66100, Chieti, Italy
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Morabito C, D'Alimonte I, Pierdomenico L, Pipino C, Guarnieri S, Caprara GA, Antonucci I, Ciccarelli R, Marchisio M, Pandolfi A, Mariggiò MA. Calcitonin-induced effects on amniotic fluid-derived mesenchymal stem cells. Cell Physiol Biochem 2015; 36:259-73. [PMID: 25967965 DOI: 10.1159/000374069] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/31/2015] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND/AIMS Mesenchymal stem cells from human amniotic fluid (huAFMSCs) can differentiate into multiple lineages and are not tumorigenic after transplantation, making them good candidates for therapeutic purposes. The aim was to determine the effects of calcitonin on these huAFMSCs during osteogenic differentiation, in terms of the physiological role of calcitonin in bone homeostasis. METHODS For huAFMSCs cultured under different conditions, we assayed: expression of the calcitonin receptor, using immunolabelling techniques; proliferation and osteogenesis, using colorimetric and enzymatic assays; intracellular Ca(2+) and cAMP levels, using videomicroscopy and spectrophotometry. RESULTS The calcitonin receptor was expressed in proliferating and osteo-differentiated huAFMSCs. Calcitonin triggered intracellular Ca(2+) increases and cAMP production. Its presence in cell medium also induced dose-dependent inhibitory effects on proliferation and increased osteogenic differentiation of huAFMSCs, as also indicated by enhancement of specific markers and alkaline phosphatase activity. CONCLUSIONS These data show that huAFMSCs represent a potential osteogenic model to study in-vitro cell responses to calcitonin (and other members of the calcitonin family). This leads the way to the opening of new lines of research that will add new insight both in cell therapies and in the pharmacological use of these molecules.
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Affiliation(s)
- Caterina Morabito
- Department of Neuroscience, Imaging and Clinical Sciences, 'G. d'Annunzio' University of Chieti- Pescara, Chieti, Italy
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D'Alimonte I, Flati V, Toniato E, Martinotti S, Rathbone MP, Jiang S, Di Iorio P, Caciagli F, Ciccarelli R. Retraction: Guanosine inhibits CD40 receptor expression and function induced by cytokines and β amyloid in mouse microglia cells. J Immunol 2015; 194:1381. [PMID: 25596300 DOI: 10.4049/jimmunol.1490054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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D'Alimonte I, Lannutti A, Pipino C, Di Tomo P, Pierdomenico L, Cianci E, Antonucci I, Marchisio M, Romano M, Stuppia L, Caciagli F, Pandolfi A, Ciccarelli R. Wnt signaling behaves as a "master regulator" in the osteogenic and adipogenic commitment of human amniotic fluid mesenchymal stem cells. Stem Cell Rev Rep 2014; 9:642-54. [PMID: 23605563 PMCID: PMC3785124 DOI: 10.1007/s12015-013-9436-5] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.0] [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: 12/11/2022]
Abstract
Human amniotic fluid mesenchymal stem cells (huAFMSCs) are emerging as a promising therapeutic option in regenerative medicine. Here, we characterized huAFMSC phenotype and multipotentiality. When cultured in osteogenic medium, huAFMSC displayed a significant increase in: Alkaline Phosphatase (ALP) activity and mRNA expression, Alizarin Red S staining and Runx2 mRNA expression; whereas maintaining these cells in an adipogenic culture medium gave a time-dependent increase in PPARγ and FABP4 mRNA expression, glycerol-3-phosphate dehydrogenase (GPDH) activity and positivity to Oil Red Oil staining. These results confirm that huAFMSCs can differentiate toward osteogenic and adipogenic phenotypes. The canonical Wnt/ßcatenin signaling pathway appears to trigger huAFMSC osteoblastogenesis, since during early phases of osteogenic differentiation, the expression of Dishevelled-2 (Dvl-2), of the non-phosphorylated form of ß-catenin, and the phosphorylation of glycogen synthase kinase-3ß (GSK3ß) at serine 9 were upregulated. On the contrary, during adipogenic differentiation Dvl-2 expression decreased, whereas that of ß-catenin remained unchanged. This was associated with a late increase in GSK3ß phosphorylation. Consistent with this scenario, huAFMSCs exposure to Dickkopf-1, a selective inhibitor of the Wnt signaling, abolished Runx2 and ALP mRNA upregulation during huAFMSC osteogenic differentiation, whereas it enhanced FABP4 expression in adipocyte-differentiating cells. Taken together, these results unravel novel molecular determinants of huAFMSC commitment towards osteoblastogenesis, which may represent potential targets for directing the differentiation of these cells and improving their use in regenerative medicine. Schematic representation of Wnt pathway involved in the osteogenic and adipogenic differentiation of huAFMSCs. Our paper demonstrates that osteogenic commitment of these cells is linked to the stimulation of Wnt signal leading to the final transcriptional activation of early osteogenic markers such as RUNX-2 and ALP, mediated by β-catenin. DKK1 is a secreted Wnt antagonist that may be used as a drug to inhibit Wnt signal. In contrast, adipogenic commitment involves early inhibition of Wnt pathway leading to ubiquitination/degradation of β-catenin. This results in the transcription of PPARγ and FABP4, considered as the main initiators of adipogenesis. APC, adenomatous polyposis coli; βcat, β-catenin; CK1, casein kinase 1; DKK1, dickkopf 1; Dvl, Dishevelled; GSK3β, glycogen synthase kinase 3β; LRP5/6, low density lipoprotein receptor-related protein 5/6 ![]()
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Affiliation(s)
- Iolanda D'Alimonte
- Department of Experimental and Clinical Sciences, University "G. D'Annunzio" of Chieti-Pescara, Chieti, Italy
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Ciccarelli R, Zimmermann H. 5th Joint Italian-German Purine Club Meeting : "fostering translational research on purines by Italian-German joint efforts". Purinergic Signal 2013; 10:367-8. [PMID: 24150994 DOI: 10.1007/s11302-013-9390-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2013] [Accepted: 10/04/2013] [Indexed: 10/26/2022] Open
Affiliation(s)
- Renata Ciccarelli
- Department of Experimental and Clinical Sciences, University of Chieti-Pescara, Via dei Vestini 29, palazzina B, 66100, Chieti, Italy,
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D'Alimonte I, Nargi E, Lannutti A, Marchisio M, Pierdomenico L, Costanzo G, Di Iorio P, Ballerini P, Giuliani P, Caciagli F, Ciccarelli R. Adenosine A1 receptor stimulation enhances osteogenic differentiation of human dental pulp-derived mesenchymal stem cells via WNT signaling. Stem Cell Res 2013; 11:611-24. [PMID: 23651584 DOI: 10.1016/j.scr.2013.04.002] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [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: 08/09/2012] [Revised: 03/12/2013] [Accepted: 04/03/2013] [Indexed: 12/29/2022] Open
Abstract
In this study, mesenchymal stem cells deriving from dental pulp (DPSCs) of normal human impacted third molars, previously characterized for their ability to differentiate into osteoblasts, were used. We observed that: i) DPSCs, undifferentiated or submitted to osteogenic differentiation, express all four subtypes of adenosine receptors (AR) and CD73, corresponding to 5'-ecto-nucleotidase; and ii) AR stimulation with selective agonists elicited a greater osteogenic cell differentiation consequent to A1 receptor (A1R) activation. Therefore, we focused on the activity of this AR. The addition of 15-60nM 2-chloro-N(6)-cyclopentyl-adenosine (CCPA), A1R agonist, to DPSCs at each change of the culture medium significantly increased the proliferation of cells grown in osteogenic medium after 8days in vitro (DIV) without modifying that of undifferentiated DPSCs. Better characterizing the effect of A1R stimulation on the osteogenic differentiation capability of these cells, we found that CCPA increased the: i) expression of two well known and early osteogenic markers, RUNX-2 and alkaline phosphatase (ALP), after 3 and 7DIV; ii) ALP enzyme activity at 7DIV and iii) mineralization of extracellular matrix after 21DIV. These effects, abolished by cell pre-treatment with the A1R antagonist 8-cyclopentyl-1,3-dipropyl-xanthine (DPCPX), involved the activation of the canonical Wnt signaling as, in differentiating DPSCs, CCPA significantly increased dishevelled protein and inhibited glycogen synthase kinase-3β, both molecules being downstream of Wnt receptor signal pathway. Either siRNA of dishevelled or cell pre-treatment with Dickkopf-1, known inhibitor of Wnt signaling substantially reduced either DPSC osteogenic differentiation or its enhancement promoted by CCPA. Summarizing, our findings indicate that the stimulation of A1R may stimulate DPSC duplication enhancing their osteogenic differentiation efficiency. These effects may have clinical implications possibly facilitating bone tissue repair and remodeling.
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Affiliation(s)
- Iolanda D'Alimonte
- Department of Experimental and Clinical Sciences, University of Chieti-Pescara, Chieti, Italy; Stem Tech Group, Chieti, Italy
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Giuliani P, Buccella S, Ballerini P, Ciccarelli R, D'Alimonte I, Cicchitti S, Petragnani N, Natale S, Iacovella G, Caciagli F, Di Iorio P. Guanine-based purines modulate the effect of L-NAME on learning and memory in rats. Panminerva Med 2012; 54:53-58. [PMID: 23241935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Guanosine has been reported to exert neuroprotective effects. We recently reported that, following intraperitoneal (i.p.) injection to rats, it resulted to be widely distributed. Its metabolic product guanine also rapidly increased in all the tissues, including brain, after i.p. injection of guanosine and consistently we found a significant enzymatic activity of a soluble purine nucleoside phosphorylase in the plasma of the treated animals. In this study the effect of per os administration of guanosine or guanine to rats submitted to passive avoidance task has been evaluated. Guanosine (4 and 8 mg/kg) administered pretraining impaired retention in the passive avoidance task and was unable to prevent the amnesic effect caused by 100 mg/kg N-omega-nitro-l-arginine methyl ester (L-NAME), an inhibitor of the nitric oxide synthase (NOS) known to reduce the capability of treated animals to acquire or retain informations in several learning tasks. On the contrary, guanine (4 and 8 mg/kg), which per se did not modify the latency to step-trough in the passive avoidance task, when administered pretraining 15 min before L-NAME prevented, in a dose dependent manner, the amnesic effect of the NOS inhibitor. Moreover the nucleobase was able to rescue the memory trace also when administered after training. Neither guanosine nor guanine had effects on locomotor activity. These results indicate that guanine can exert important biological activities which may be different from those mediated by its precursor guanosine, thus this evenience should be taken into account when the biological effects of guanosine are evaluated.
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Affiliation(s)
- P Giuliani
- Department of Experimental and Clinical Sciences, University of Chieti-Pescara, Chieti, Italy
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36
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Giuliani P, Romano S, Ballerini P, Ciccarelli R, Petragnani N, Cicchitti S, Zuccarini M, Jiang S, Rathbone MP, Caciagli F, Di Iorio P. Protective activity of guanosine in an in vitro model of Parkinson's disease. Panminerva Med 2012; 54:43-51. [PMID: 23241934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Parkinson's disease (PD) is a pathological condition characterized by a progressive neurodegeneration of dopaminergic neurons with the consequent reduction of dopamine content in the substantia nigra. The neurotoxin 6-hydroxydopamine (6-OHDA) is widely used to mimic the neuropathology of PD in both in vivo and in vitro experimental models. We found that, as expected, in dopaminergic human SH-SY5Y neuroblastoma cells the toxin reduced cell viability causing programmed cell death as assessed by an increase in DNA fragmentation. We also examined, in these cells, the activation/inactivation of several pro and anti apoptotic signaling pathways by 6-OHDA including p-38 kinase (p-38), c-Jun N-terminal kinase (JNK), protein kinase B (also known as Akt), glycogen synthase kinase-3β (GSK3β), and Bcl-2 protein. Guanine-based purines, exert neuroprotective effects and we previously reported that guanosine activates cell survival pathways including PI3K/Akt/PKB signaling in different kinds of cells including glia and neuroblastoma cells. In the present study we found that guanosine (300 µM) protected SH-SY5Y neuroblastoma cells when they were exposed to 6-OHDA, promoting their survival. Guanosine reduced the 6-OHDA mediated activation of p-38 and JNK. Moreover the nucleoside potentiated the early increase in the phosphorylation of the anti-apoptotic kinase Akt and the increase in the expression of the anti-apoptotic Bcl-2 protein induced by 6-OHDA. In summary our results show that guanosine results to be neuroprotective in a recognized in vitro model of PD thus suggesting that it could represent a new potential pharmacological tool to be studied in the therapeutic approach to PD.
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Affiliation(s)
- P Giuliani
- Department of Experimental and Clinical Sciences, University of Chieti-Pescara, Chieti, Italy
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Giuliani P, Buccella P, Ballerini P, Ciccarelli R, D'alimonte I, Cicchitti S, Petragnani N, Natale S, Iacovella G, Caciagli F, Di Iorio P. Guanine-based purines modulate the effect of L-NAME on learning and memory in rats. Panminerva Med 2012:R41122762. [PMID: 23138719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Guanosine has been reported to exert neuroprotective effects. We recently reported that, following intraperitoneal (i.p.) injection to rats, it resulted to be widely distributed. Its metabolic product guanine also rapidly increased in all the tissues, including brain, after i.p. injection of guanosine and consistently we found a significant enzymatic activity of a soluble purine nucleoside phosphorylase in the plasma of the treated animals. In this study the effect of per os administration of guanosine or guanine to rats submitted to passive avoidance task has been evaluated. Guanosine (4 and 8 mg/kg) administered pretraining impaired retention in the passive avoidance task and was unable to prevent the amnesic effect caused by 100 mg/kg N-omega-nitro-l-arginine methyl ester (L-NAME), an inhibitor of the nitric oxide synthase (NOS) known to reduce the capability of treated animals to acquire or retain informations in several learning tasks. On the contrary, guanine (4 and 8 mg/kg), which per se did not modify the latency to step-trough in the passive avoidance task, when administered pretraining 15 min before L-NAME prevented, in a dose dependent manner, the amnesic effect of the NOS inihibitor. Moreover the nucleobase was able to rescue the memory trace also when administered after training. Neither guanosine nor guanine had effects on locomotor activity. These results indicate that guanine can exert important biological activities which may be different from those mediated by its precursor guanosine, thus this evenience should be taken into account when the biological effects of guanosine are evaluated.
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Affiliation(s)
- P Giuliani
- Department of Experimental and Clinical Sciences, University of Chieti-Pescara, Chieti, Italy2 Department of Psychologic, Humanities and Territorial Sciences, University of Chieti-Pescara, Chieti, Italy. -
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38
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Pompei A, Toniato E, Innocenti P, D Alimonte I, Cellini C, Mattoscio D, Cotellese R, Bosco D, Ciccarelli R, Dadorante V, D Orazio N, Martinotti S, Robuffo I. Cyanidin reduces preadipocyte differentiation and relative ChREBP expression. J BIOL REG HOMEOS AG 2012; 26:253-264. [PMID: 22824753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Adipogenesis is a continuous process even in adult adipose tissue for the presence of preadipocytes that, when subjected to appropriate stimuli can proliferate and differentiate. ChREBP, the essential transcription factor for lipogenesis, is expressed in all tissues, but mainly in lipogenic organs. In this study, we focused on ChREBP expression during preadipocytes differentiation. Since it was found that cyanidin-3 reduces body weight in mice even in the presence of a high-fat diet, by decreasing levels of blood glucose and by improving insulin sensitivity, we studied the effect of this substance on adipogenic differentiation. For this purpose we used preadipocytes obtained from subcutaneous and visceral human adipose explant tissue, characterized and stimulated to differentiate in selective media. On cytofluorimetric analysis these cells showed mesenchymal markers (CD29, CD90, CD44), whereas they were negative for hematopoietic markers (CD45, CD10, CD117,CD31). ChREBP expression levels were quantified by immunoelectron-microscopy and western blotting analysis. In this report we show that ChREBP is expressed in preadipocytes (both nuclear and cytoplasmic compartments); the cytoplasmic level of ChREBP increased by 50 percent on day seven of differentiation into mature adipocytes. Cyanidin reduced differentiation by 20 percent (as evaluated by red oil O staining) and the expression of ChREBP. In addition, cyanidin-treated cells showed abnormal morphology, a square shape with irregular size, probably due to the fact that cyanidin may interfere with the extracellular matrix. These findings suggest that dietary cyanidin, may have inhibitory effects on adipogenesis.
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Affiliation(s)
- A Pompei
- Institute of Molecular Genetics, National Research Council, Chieti, Italy
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Giuliani P, Ballerini P, Ciccarelli R, Buccella S, Romano S, D'Alimonte I, Poli A, Beraudi A, Peña E, Jiang S, Rathbone MP, Caciagli F, Di Iorio P. Tissue distribution and metabolism of guanosine in rats following intraperitoneal injection. J BIOL REG HOMEOS AG 2012; 26:51-65. [PMID: 22475097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Guanosine has long been known as an endogenous purine nucleoside deeply involved in the modulation of several intracellular processes, especially G-protein activity. More recently, it has been reported to act as an extracellular signaling molecule released from neurons and, more markedly, from astrocytes either in basal conditions or after different kinds of stimulation including hypoxia. Moreover, in vivo studies have shown that guanosine plays an important role as both a neuroprotective and neurotrophic agent in the central nervous system. Specific high-affinity binding sites for this nucleoside have been found on membrane preparations from rat brain. The present study was undertaken to investigate the distribution and metabolic profiles of guanosine after administering the nucleoside to gain a better understanding of the biological effects of this potential drug candidate. Rats were given an intraperitonal (i.p.) injection of 2, 4, 8 or 16 mg/kg of guanosine combined with 0.05% of [3H]guanosine. Plasma samples were collected 7.5, 15, 30, 60 and 90 min after the guanosine-mixture administration and analyzed by either a liquid scintillation counter or by HPLC connected to a UV and to an on-line radiochemical detector to measure the levels of guanosine and its metabolic products guanine, xanthine and uric acid. The levels of guanosine, guanine and xanthine were also measured in brain, lung, heart, kidney and liver tissue homogenates at the defined time points after the injection of 8 mg/kg of the guanosine-mixture. We found that the levels of radioactivity in plasma increased linearly in a dose- and time-dependent manner. Guanosine was widely distributed in all tissues examined in the present study, at almost twice its usual levels. In addition, guanine levels dramatically increased in all the organs. Interestingly, enzymatic analysis of the plasma samples showed the presence of a soluble purine nucleoside phosphorylase, a key enzyme in the purine salvage pathway and nucleoside catabolism. Since guanosine has been shown to be neuroprotective and astrocytes have been reported to play critical roles in mediating neuronal survival and functions in different neurodegenerative disorders, we also performed uptake and release.
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Affiliation(s)
- P Giuliani
- Department of Human Movement Sciences, University of Chieti-Pescara, Italy
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Ciccarelli R, Müller CE, Zimmermann H. International conference on purinergic drugs and targets-4th joint german-italian purine club meeting, bonn, Germany, july 22-25, 2011. Purinergic Signal 2011; 8:105-6. [PMID: 22002166 DOI: 10.1007/s11302-011-9256-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
Affiliation(s)
- Renata Ciccarelli
- Department of Biomedical Sciences, Section of Pharmacology, University of Chieti-Medical School, Via dei Vestini 29, Pal. B, 66013, Chieti, Italy
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D' Alimonte I, Nargi E, Mastrangelo F, Falco G, Lanuti P, Marchisio M, Miscia S, Robuffo I, Capogreco M, Buccella S, Caputi S, Caciagli F, Tetè S, Ciccarelli R. Vascular endothelial growth factor enhances in vitro proliferation and osteogenic differentiation of human dental pulp stem cells. J BIOL REG HOMEOS AG 2011; 25:57-69. [PMID: 21382274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Mesenchymal stem cells (MSC), isolated from dental tissues, are largely studied for future application in regenerative dentistry. In this study, we used MSC obtained from human dental pulp (DPSC) of normal impacted third molars that, when cultured in lineage-specific inducing media, differentiate into osteoblasts and adipocytes (evaluated by Alizarin Red S and Red Oil O stainings, respectively), thus showing a multipotency. We confirmed that DPSC, grown under undifferentiating conditions, are negative for hematopoietic (CD45, CD31, CD34, CD144) and positive for mesenchymal (CD29, CD90, CD105, CD166, CD146, STRO-1) markers, that underwent down-regulation when cells were grown in osteogenic medium for 3 weeks. In this condition, they also exhibit an increase in the expression of osteogenic markers (RUNX-2, alkaline phosphatase) and extracellular calcium deposition, whereas the expression of receptors (VEGFR-1 and -2) for vascular endothelial growth factors (VEGF) and related VEGF binding proteins was similar to that found in undifferentiated DPSC. Exposure of DPSC growing under undifferentiating or osteogenic conditions to VEGF-A165 peptide (10-40 ng/ml) for 8 days dose- and time-dependently increased the number of proliferating cells without inducing differentiation towards endothelial lineage, as evaluated by the lack of expression of specific markers (CD31, CD34, CD144). Additionally, exposure of DPSC cultured in osteogenic medium to VEGF-A165 for a similar period enhanced cell differentiation towards osteoblasts as evaluated after 14 and 21 days by Alizarin Red S staining and alkaline phosphatase activity quantification. These findings may have clinical implications possibly facilitating tissue repair and remodeling.
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Affiliation(s)
- I D' Alimonte
- Department of Biomedical Sciences, University of Chieti, Italy
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Ciccarelli R. New evidences in the characterization of receptor oligomers: novel operational versatile models for receptor function in vivo? Purinergic Signal 2010; 6:289-92. [PMID: 21103211 DOI: 10.1007/s11302-010-9200-0] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Affiliation(s)
- Renata Ciccarelli
- Department of Biomedical Sciences, "Gabriele D'Annunzio", University of Chieti-Pescara, Chieti, Italy
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Tarozzi A, Merlicco A, Morroni F, Bolondi C, Di Iorio P, Ciccarelli R, Romano S, Giuliani P, Hrelia P. Guanosine protects human neuroblastoma cells from oxidative stress and toxicity induced by Amyloid-beta peptide oligomers. J BIOL REG HOMEOS AG 2010; 24:297-306. [PMID: 20846477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Amyloid-beta (Abeta) peptide aggregation forms such as soluble oligomers (O) have a causal role in neuronal dysfunction and death associated with Alzheimer?s Disease (AD). The main efforts for the development of neuroprotective drugs are therefore focused on preventing Abeta production, aggregation or downstream neurotoxic events. We therefore investigated the effect of guanosine (GUO), a guanine based purine, that exerts neurotrophic and neuroprotective effects. The GUO showed the ability to reduce neuronal death in terms of apoptosis, but not necrosis, elicited by Abeta1-42O in human neuroblastoma SH-SY5Y cells. The neuroprotective effect was recorded only when the GUO was added simultaneously to treatment of the SH-SY5Y cells with Abeta1-42O. By contrast, the GUO treatment of SH-SY5Y cells before and after the appearance of beta1-42O toxicity had no neuroprotective effects. The employment of specific inhibitors showed the involvement of neuronal survival pathways, such as PI3K?Akt and MAPK-ERK for the GUO anti-apoptotic effects observed. In parallel, the SH-SY5Y cells treated with GUO, in experimental conditions similar to those adopted to evaluate neuronal death, showed a marked decrease of the early reactive oxygen species formation induced by Abeta1-42O and pro-oxidant H2O2. In the same neuronal model, GUO was also shown to inhibit the extra- and intra-cellular Abeta1-42 release as well as the beta-secretase activity evoked by H2O2 pro-oxidant action. Based on these findings, GUO and other guanine based purines appear to be a promising class of compounds with neuroprotective properties that may play an important role in the therapy of AD.
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Affiliation(s)
- A Tarozzi
- Department of Pharmacology, Alma Mater Studiorum-University of Bologna, Bologna, Italy.
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D’Alimonte I, D’Auro M, Citraro R, Biagioni F, Jiang S, Nargi E, Buccella S, Di Iorio P, Giuliani P, Ballerini P, Caciagli F, Russo E, De Sarro G, Ciccarelli R. Altered distribution and function of A2Aadenosine receptors in the brain of WAG/Rij rats with genetic absence epilepsy, before and after appearance of the disease. Eur J Neurosci 2009; 30:1023-35. [DOI: 10.1111/j.1460-9568.2009.06897.x] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Su C, Elfeki N, Ballerini P, D'Alimonte I, Bau C, Ciccarelli R, Caciagli F, Gabriele J, Jiang S. Guanosine improves motor behavior, reduces apoptosis, and stimulates neurogenesis in rats with parkinsonism. J Neurosci Res 2009; 87:617-25. [PMID: 18816792 DOI: 10.1002/jnr.21883] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Parkinson's disease (PD) is characterized by progressive degeneration of dopaminergic neurons in the substantia nigra pars compacta (SNc) caused by an abnormal rate of apoptosis. Endogenous stem cells in the adult mammalian brain indicate an innate potential for regeneration and possible resource for neuroregeneration in PD. We previously showed that guanosine prevents apoptosis even when administered 48 hr after the toxin 1-methyl-4-phenylpyridinium (MPP(+)). Here, we induced parkinsonism in rats with a proteasome inhibitor. Guanosine treatment reduced apoptosis, increased tyrosine hydroxylase-positive dopaminergic neurons and expression of tyrosine hydroxylase in the SNc, increased cellular proliferation in the SNc and subventricular zone, and ameliorated symptoms. Proliferating cells in the subventricular zone were nestin-positive adult neural progenitor/stem cells. Fibroblast growth factor-2-expressing cells were also increased by guanosine. Thus, guanosine protected cells from apoptosis and stimulated "intrinsic" adult progenitor/stem cells to become dopaminergic neurons in rats with proteasome inhibitor-induced PD. The cellular/molecular mechanisms underlying these effects may open new avenues for development of novel therapeutics for PD.
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Affiliation(s)
- Caixin Su
- Department of Surgery (Neurosurgery, Neurobiology), McMaster University, Health Sciences Centre, Hamilton, Ontario, Canada
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Brunese L, Ciccarelli R, Fucili S, Romeo A, Napolitano G, D'Auria V, Collina A, Califano L, Cappabianca S, Sodano A. Pleomorphic adenoma of parotid gland: delayed enhancement on computed tomography. Dentomaxillofac Radiol 2009; 37:464-9. [PMID: 19033432 DOI: 10.1259/dmfr/79964183] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
OBJECTIVES To assess the efficacy of multiphasic CT with 8 min delayed acquisition in the differential diagnosis between pleomorphic adenomas and other parotid neoplasias. METHODS Between January 2004 and April 2007, 62 patients with parotid enlargement were enrolled in this prospective study. The CT protocol applied included the following four acquisitions: without contrast medium and 30 s, 120 s and 8 min after intravenous injection of contrast medium. We considered the degree of the enhancement of the lesions (rated as "low", "moderate" and "strong") and the degree of enhancement homogeneity (rated as "not homogeneous", "mildly homogeneous" and "uniform"). These parameters were compared with Hounsfield values of the lesions computed in each phase. The diagnosis was confirmed in all patients after surgery. RESULTS On histological examination, 36 tumours were classified as pleomorphic adenomas and 26 as non-pleomorphic adenomas. On the basis of a statistical comparison, the third phase proved to be the most effective in the differential diagnosis between pleomorphic adenoma and non-pleomorphic adenomas, both for the assessment of the degree of the enhancement (in this phase, strong enhancement showed a sensitivity of 61.11%, specificity of 100%, positive predictive value (PPV) of 100% and negative predictive value (NPV) of 53.33%) and, above all, for the homogeneity of the enhancement (in this phase, indeed, uniform enhancement showed sensitivity, specificity, PPV and NPV of 100%). CONCLUSIONS Our results seem to indicate that multiphasic CT with 8 min delayed acquisition allows the differential diagnosis between pleomorphic adenomas and other parotid neoplasias.
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Affiliation(s)
- L Brunese
- Department of Health Sciences, Università del Molise, Contrada Tappino, Campobasso, Molise 86100, Italy.
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Sammartino G, Marenzi G, Citarella R, Ciccarelli R, Wang HL. Analysis of the occlusal stress transmitted to the inferior alveolar nerve by an osseointegrated threaded fixture. J Periodontol 2008; 79:1735-44. [PMID: 18771376 DOI: 10.1902/jop.2008.080030] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND Altered sensation can occur after the placement or loading of mandibular implants. Limited evidence exists with regard to the proper distance between the implant and the mandibular nerve to ensure the nerve's integrity and physiologic activity. The proper distance should come from evaluation of clinical data as well as from biomechanical analyses. METHODS A numeric mandibular model based on the boundary element method was created to simulate a mandibular segment containing a threaded fixture so that the pressure on the trigeminal nerve, as induced by the occlusal loads, could be assessed. Such pressure distributions were evaluated with different distances of the fixture from the mandibular canal and considering different bone densities. Although all simulations considered a canal that was orthogonal to the implant axis, in one case, the effects of an inclined canal were analyzed. RESULTS The nerve pressure increased rapidly with a bone density decrease. A low mandibular cortical bone density caused a major nerve pressure increase. CONCLUSION Our study suggested a distance of 1.5 mm to prevent implant damage to the underlying inferior alveolar nerve when biomechanical loading was taken into consideration.
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Affiliation(s)
- G Sammartino
- Section of Oral Surgery, Department of Odontostomatological and Maxillofacial Sciences, University of Naples Federico II, Via Pansini 5, Naples, Italy.
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Tetè S, Nargi E, Mastrangelo F, Zizzari V, D'Apolito G, Traini T, Costanzo G, Dadorante V, D'Alimonte I, Caputi S, Caciagli F, Ciccarelli R. Changes in matrix extracellular phosphoglycoprotein expression before and during in vitro osteogenic differentiation of human dental papilla mesenchymal cells. Int J Immunopathol Pharmacol 2008; 21:309-18. [PMID: 18547474 DOI: 10.1177/039463200802100207] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
The purpose of this study is to characterise the expression of matrix extracellular phosphoglycoprotein (MEPE) in cultured mesenchymal cells isolated from human dental papilla (PaMCs) of impacted third molars either before or during differentiation of these cells into osteo/odontoblasts. PaMCs, like mesenchymal cells deriving from human dental pulp (DPMCs), resulted positive for a number of mesenchymal markers including CD146 and STRO-1. During the first week in culture they showed a faster proliferation rate than DPMCs, coupled to an earlier down-regulation of MEPE. Also when the cells were further cultured in osteogenic medium (containing beta-glycerophosphate, ascorbic acid and dexamethasone) for 40 days, MEPE down-regulation coupled to an increased expression of osteogenic markers, such as osteocalcin and alkaline phosphatase, occurred earlier in PaMCs than in DPMCs. Thus, our data, indicating that also in PaMCs MEPE expression is higher when cells proliferate, whereas it is downregulated as cells differentiated, are in favour of a role of MEPE as an early regulator of odontogenic differentiation. We also confirm the superior proliferative potential of PaMCs in comparison with DPMCs, coupled to a more rapid induction of osteogenic differentiation. Therefore, these cells represent an optimal source to be conveniently used for dental tissue engineering and tooth regeneration.
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Affiliation(s)
- S Tetè
- Department of Oral Sciences, Division of Oral Surgery, University Medical School, G. d'Annunzio University of Chieti, Via dei Vestini 29, Chieti, Italy
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Tetè S, Mastrangelo F, Carone L, Nargi E, Costanzo G, Vinci R, Burruano F, Tortorici S, Dadorante V, Caciagli F, Traini T, Gherlone E, Caraffa A, Salini V, Conti P, Ciccarelli R. Morphostructural analysis of human follicular stem cells on highly porous bone hydroxyapatite scaffold. Int J Immunopathol Pharmacol 2008; 20:819-26. [PMID: 18179737 DOI: 10.1177/039463200702000418] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
In this study we investigated the in vitro behaviour, morphostructure and extracellular matrix synthesis of human dental follicular stem cells (hDFSCs) isolated from human dental bud, which resulted to be positive for mesenchymal markers (CD29, CD90, CD146 and CD166) by FACS analysis. Cells were analysed by light and electronic microscopy to evaluate their biological response either at week 1, that is before differentiation, or at weeks 3-6, when they had been cultured in osteogenic medium onto a highly porous natural scaffold material (Bio-Oss). Microscopy analysis of primary culture cells showed they had a mesenchymal stem cell-like morphostructure, spindle shaped, similar to the culture of mesenchymal stem cells derived from adult bone marrow. Also, after osteogenic differentiation, these analyses indicate typical osteoblast morphostructure and reveale a tri-dimensional organization of the cells and deposition of extracellular matrix (ECM) in close contact with biomaterial. This approach would allow to personalize the scaffold for bone tissue engineering in order to accelerate the process of osteogenesis.
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Affiliation(s)
- S Tetè
- Dept. of Stomatology and Oral Science, Division of Oral Surgery, University G. d'Annunzio, Chieti, Ialy.
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Mastrangelo F, Nargi E, Carone L, Dolci M, Caciagli F, Ciccarelli R, Lutiis MAD, Karapanou V, Shaik BY, Conti P, Teté S. Tridimensional Response of human Dental Follicular Stem Cells onto a Synthetic Hydroxyapatite Scaffold. ACTA ACUST UNITED AC 2008. [DOI: 10.1248/jhs.54.154] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Filiberto Mastrangelo
- Department of Stomatology and Oral Science, Division of Oral Surgery, University “G. d'Annunzio,”
| | - Elena Nargi
- Department of Biomedical Scienze, Division of Pharmacology and Toxicology, University “G. d'Annunzio,”
| | - Luigi Carone
- Department of Stomatology and Oral Science, Division of Oral Surgery, University “G. d'Annunzio,”
| | - Marco Dolci
- Department of Stomatology and Oral Science, Division of Oral Surgery, University “G. d'Annunzio,”
| | - Francesco Caciagli
- Department of Biomedical Scienze, Division of Pharmacology and Toxicology, University “G. d'Annunzio,”
| | - Renata Ciccarelli
- Department of Biomedical Scienze, Division of Pharmacology and Toxicology, University “G. d'Annunzio,”
| | | | | | - Basha Y. Shaik
- Department of Oral Biology, Dental Medicine, Boston University
| | - Pio Conti
- Immunology Division, University “G. d'Annunzio,”
| | - Stefano Teté
- Department of Stomatology and Oral Science, Division of Oral Surgery, University “G. d'Annunzio,”
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