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Bramanti V, Grasso S, Tibullo D, Giallongo C, Pappa R, Brundo MV, Tomassoni D, Viola M, Amenta F, Avola R. Neuroactive molecules and growth factors modulate cytoskeletal protein expression during astroglial cell proliferation and differentiation in culture. J Neurosci Res 2015; 94:90-8. [PMID: 26469526 DOI: 10.1002/jnr.23678] [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: 07/13/2015] [Revised: 09/17/2015] [Accepted: 09/24/2015] [Indexed: 12/27/2022]
Abstract
Steroid hormones and neurotrophic factors regulate astroglial cell survival, proliferation, and differentiation in culture. The present study examines the interaction between glucocorticoids and growth factors (GFs) on cytoskeletal proteins and extracellular signal-regulated kinase 2 (ERK2) expression in stressed astroglial cultures at 25 days in vitro, according to the following experimental condition. Pretreatment with basic fibroblast growth factor alone or in combination with dexamethasone 10(-9) M for 48 hr induced an enhancement of glial fibrillary acidic protein, vimetin, and ERK2 expression. Treatment with "progression" GFs alone and in the last 12 hr significantly increased the above-mentioned markers' expression. The present study shows that glucocorticoids may cooperate with GFs or may abrogate their effects, depending on the experimental culture conditions used as well as the exposure time and the types of GFs added. Our findings provide evidence of interactive dialogue between GFs and neurosteroids in cultured astrocytes. This may have implications in the therapeutic approach to neurologic disorders associated with astrogliosis.
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Affiliation(s)
- Vincenzo Bramanti
- Department of Biomedical and Biotechnological Sciences, Section of Medical Biochemistry, University of Catania, Catania, Italy
| | - Sonia Grasso
- Department of Biomedical and Biotechnological Sciences, Section of Medical Biochemistry, University of Catania, Catania, Italy
| | - Daniele Tibullo
- Division of Haematology, A.O.U. "Policlinico-Vittorio Emanuele", University of Catania, Catania, Italy
| | - Cesarina Giallongo
- Department of Biomedical and Biotechnological Sciences, Section of Medical Biochemistry, University of Catania, Catania, Italy.,Division of Haematology, A.O.U. "Policlinico-Vittorio Emanuele", University of Catania, Catania, Italy
| | - Rita Pappa
- Department of Biomedical and Biotechnological Sciences, Section of Medical Biochemistry, University of Catania, Catania, Italy
| | - Maria Violetta Brundo
- Department of Biological, Geological, and Environmental Sciences, University of Catania, Catania, Italy
| | - Daniele Tomassoni
- School of Bioscience and Veterinary Medicine, University of Camerino, Camerino, Italy
| | - Maria Viola
- Department of Biomedical and Biotechnological Sciences, Section of Medical Biochemistry, University of Catania, Catania, Italy
| | - Francesco Amenta
- School of Medicinal Sciences and Health Products, University of Camerino, Camerino, Italy
| | - Roberto Avola
- Department of Biomedical and Biotechnological Sciences, Section of Medical Biochemistry, University of Catania, Catania, Italy
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Bonaccorsl F, Albonico P, Pappa R, Lockhart TP. Coordination Chemical Concepts Applied to the Design of Metal Ion Crosslinked Polymer Gels. INT J POLYM MATER PO 1992. [DOI: 10.1080/00914039208029318] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Boschi T, Pappa R, Pistola G, Tocci M. The reduction of polycondensed quinones from hydroquinone, phenol and formaldehyde in Li+-containing organic solutions. J Electroanal Chem (Lausanne) 1985. [DOI: 10.1016/0368-1874(85)80077-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Boschi T, Pappa R, Pistoia G, Tocci M. On the use of nonylbenzo-hexaquinone as a substitute for monomeric quinones in non-aqueous cells. ACTA ACUST UNITED AC 1984. [DOI: 10.1016/s0022-0728(84)80321-6] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Zappelli P, Pappa R, Rossodivita A, Re L. Preparation of coenzymic activity of soluble polyethyleneimine-bound NADP+ derivatives. Eur J Biochem 1977; 72:309-15. [PMID: 13999 DOI: 10.1111/j.1432-1033.1977.tb11254.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Alkylation at N-1 of the NADP+ adenine ring with 3,4-epoxybutanoic acid gave 1-(2-hydroxy-3-carboxypropyl)-NADP+. Enzymic reduction of the latter, followed by alkaline Dimroth rearrangement and enzymic reoxidation, gave N6-(2-hydroxy-3-carboxypropyl)-NADP+. On the other hand, bromination at C-8 of the NADP+ adenine ring, followed by reaction with the disodium salt of 3-mercaptroproionic acid, gave 8-(2-carboxyethylthio)-NADP+. Carbodimide coupling of the three carboxylic NADP+ derivatives to polyethyleneimine afforded the corresponding macromolecular NADP+ analogues. The carboxylic and the polyethyleneimine derivatives synthesized have been shown to be co-enzymically active with yeast glucose-6-phosphate dehydrogenase, liver glutamate dehydrogenase and yeast aldehyde dehydrogenase. The degree of efficiency relative to NADP+ with the three enzymes ranged from 17% to 100% for the carboxylic derivatives and from 1% to 36% for the polyethyleneimine analogues. On comparing the efficiences with the three enzymes of the N-1 derivatives to the one of the corresponding N6 anc C-8 analogues, the order of activity was N-1 greater than N6 greater C-8, except in the case of the carboxylic compounds with glutamate dehydrogenase, where this order was inverted. None of these modified cofactors were active with pig heart isocitrate dehydrogenase.
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Zappelli P, Rossodivita A, Prosperi G, Pappa R, Re L. New coenzymically-active soluble and insoluble macromolecular NAD+ derivatives. Eur J Biochem 1976; 62:211-5. [PMID: 174913 DOI: 10.1111/j.1432-1033.1976.tb10115.x] [Citation(s) in RCA: 32] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Reaction in dimethyl sulfoxide of nicotinamide 8-bromoadenine dinucleotide with the disodium salt of 3-mercaptopropionic acid afforded nicotinamide-8-(2-carboxyethylthio)adenine dinucleotide, a new NAD+ analogue functionalized at the adenine C-8 position by an omega-carboxylic side chain. Carbodimide coupling of the latter derivative to high-molecular-weight water-soluble (polyethyleneimine, polylysine) and insoluble (aminohexy)-Sepharose) polymers gave the corresponding macromolecular NAD+ analogues. These derivatives have been shown to be enzymically reducible. The polyethyleneimine analogue showed a substantial degree of efficiency relative to free NAD+ with yeast alcohol dehydrogenase (47%) but a considerably lower one with rabbit muscle lactate dehydrogenase (3%); the polylysine analogue showed a low degree of efficiency with both enzymes (5-6%).
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