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Batista DC, Silva DPB, Florentino IF, Cardoso CS, Gonçalves MP, Valadares MC, Lião LM, Sanz G, Vaz BG, Costa EA, Menegatti R. Anti-inflammatory effect of a new piperazine derivative: (4-methylpiperazin-1-yl)(1-phenyl-1H-pyrazol-4-yl)methanone. Inflammopharmacology 2017; 26:217-226. [PMID: 28825161 DOI: 10.1007/s10787-017-0390-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Accepted: 08/12/2017] [Indexed: 12/22/2022]
Abstract
AIMS This study investigates the anti-nociceptive and anti-inflammatory effects of new piperazine compound (LQFM182) as well as the toxicity acute in vitro. MAIN METHODS To evaluate the anti-nociceptive activity, the acetic acid-induced abdominal writhing test, tail flick test and formalin-induced pain test were used. The anti-inflammatory activity was evaluated using the models of paw oedema and pleurisy induced by carrageenan and some inflammatory parameters were evaluated, including cell migration, myeloperoxidase enzyme activity and the levels of TNF-α and IL-1β cytokines in pleural exudate. The acute oral systemic toxicity of LQFM182 in mice was evaluated through the neutral red uptake (nru) assay. KEY FINDINGS LQFM182 (50, 100 or 200 mg/kg, p.o.) decreased the number of writhings induced by acetic acid in a dose-dependent manner, and an intermediate dose (100 mg/kg, p.o.) reduced the paw licking time of animals in the second phase of the formalin test. Furthermore, LQFM182 (100 mg/kg, p.o.) reduced oedema formation at all hours of the paw oedema induced by carrageenan test and in pleurisy test reduced cell migration from the reduction of polymorphonuclear cells, myeloperoxidase enzyme activity and the levels of pro-inflammatory cytokines IL-1β and TNF-α. Therefore, it was classified in GHS category 300 < LD50 < 2000 mg/kg. SIGNIFICANCE Reduction of the TNF-α and IL-1β levels.
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Affiliation(s)
- Daniel C Batista
- Faculty of Pharmacy, Laboratory of Medicinal Pharmaceutical Chemistry, Federal University of Goiás, Goiânia, GO, Brazil
| | - Daiany P B Silva
- Department of Pharmacology, ICB, Federal University of Goiás, Campus Samambaia, 314, Goiânia, GO, 74001-970, Brazil
| | - Iziara F Florentino
- Department of Pharmacology, ICB, Federal University of Goiás, Campus Samambaia, 314, Goiânia, GO, 74001-970, Brazil
| | - Carina S Cardoso
- Department of Pharmacology, ICB, Federal University of Goiás, Campus Samambaia, 314, Goiânia, GO, 74001-970, Brazil
| | - Merita P Gonçalves
- Department of Pharmacology, ICB, Federal University of Goiás, Campus Samambaia, 314, Goiânia, GO, 74001-970, Brazil
| | - Marize C Valadares
- Laboratory of Pharmacology and Cell Toxicology, Faculty of Pharmacy, Federal University of Goiás, Goiânia, GO, Brazil
| | - Luciano M Lião
- Chemistry Institute, Federal University of Goias, Campus Samambaia, Goiânia, GO, Brazil
| | - Germán Sanz
- Chemistry Institute, Laboratory of Chromatography and Mass Spectrometry-LaCEM, Federal University of Goiás, Goiânia, GO, Brazil
| | - Boniek G Vaz
- Chemistry Institute, Laboratory of Chromatography and Mass Spectrometry-LaCEM, Federal University of Goiás, Goiânia, GO, Brazil
| | - Elson A Costa
- Department of Pharmacology, ICB, Federal University of Goiás, Campus Samambaia, 314, Goiânia, GO, 74001-970, Brazil
| | - Ricardo Menegatti
- Faculty of Pharmacy, Laboratory of Medicinal Pharmaceutical Chemistry, Federal University of Goiás, Goiânia, GO, Brazil.
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Wright AD, de Nys R, Angerhofer CK, Pezzuto JM, Gurrath M. Biological activities and 3D QSAR studies of a series of Delisea pulchra (cf. fimbriata) derived natural products. JOURNAL OF NATURAL PRODUCTS 2006; 69:1180-7. [PMID: 16933872 DOI: 10.1021/np050510c] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Twenty-five natural products, mainly halogenated furanones, isolated from the temperate red algae Delisea pulchra were investigated for their cytotoxic, antimicrobial, and antiplasmodial effects, their inhibition of the activity of the enzymes HIV-1-RT (HIV-1-reverse transcriptase), PKC (protein kinase C), and TK (tyrosine kinase), and their inhibition of the biosynthesis of IL-1 (interleukin-1). All were found to mediate a positive response in one or more of these test systems. In particular, compounds 9, 11, 12, 14, 16, 17, 19, and 20 demonstrated cytotoxic activity in all of the assays they were tested in; compounds 11, 12, 17, 19, and 20 were also active in the majority of the anti-infective screens. In the antimalarial and tyrosine kinase assays, compounds 17, 19, and 20 were all active. Molecular modeling studies employing 3D QSAR with receptor modeling methodologies performed with 16 halogenated furanones generated a pharmacophore hypothesis consistent with the experimentally derived cytotoxicity data. This hypothesis is developed around an active molecule having a framework based on compound 11 with an OH function or OAc (assay dependent) at C-7 and bulky electron-rich groups at C-6, such as Cl and Br but not I.
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Affiliation(s)
- Anthony D Wright
- Australian Institute of Marine Science, PMB No. 3, Townsville MC, Qld 4810, Australia.
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Guzdek A, Rokita H, Cichy J, Allison AC, Koj A. Rooperol tetraacetate decreases cytokine mRNA levels and binding capacity of transcription factors in U937 cells. Mediators Inflamm 1998; 7:13-8. [PMID: 9839693 PMCID: PMC1781819 DOI: 10.1080/09629359891324] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
We have previously described inhibition of the synthesis of three acute-phase inflammatory cytokines in human and rat macrophages by acetate esters of rooperol, a dicatechol of plant origin. Analysing the mechanism of anticytokine activity of rooperol, we compared levels of TNFalpha, IL-1beta and IL-6 mRNAs in the human promonocytic U937 cell line pretreated with phorbol myristate acetate (PMA) and incubated with rooperol tetraacetate (RTA) alone or in combination with LPS (500 ng/ml). It was found that 10 microM RTA decreased the levels of cytokine mRNAs both in the presence and absence of LPS, suggesting pretranslational inhibition of cytokine synthesis. Electrophoretic mobility shift analysis (EMSA) showed that RTA may influence cytokine mRNA expression by decreasing the binding activity of transcription factors NF-kappaB and AP-1.
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Affiliation(s)
- A Guzdek
- Institute of Molecular Biology, Jagiellonian University, Kraków, Poland
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Guzdek A, Nizankowska E, Allison AC, Kruger PB, Koj A. Cytokine production in human and rat macrophages and dicatechol rooperol and esters. Biochem Pharmacol 1996; 52:991-8. [PMID: 8831717 DOI: 10.1016/0006-2952(96)00386-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
The ability of dicatechol rooperol and esters to inhibit the production of cytokines in endotoxin-stimulated human alveolar macrophages, human blood monocyte/macrophages, histiocytic cell line U937, and rat alveolar macrophages was examined in vitro. Rooperol derivatives inhibited the production of tumour necrosis factor-alpha, interleukin-1 beta and interleukin-6. Of the esters tested on human cells, rooperol diacetate and tetraacetate were more potent inhibitors of cytokine production (IC50 in the range of 10-20 microM) than rooperol disulphate (IC50 in the range of 25-75 microM). The acetate esters also inhibited cytokine production in rat alveolar macrophages, whereas the sulphate had little effect. Rooperol and acetate esters, in the same concentration range, decreased the production of nitric oxide by rat alveolar macrophages stimulated by endotoxin. These concentrations of rooperol had no effect on cell viability, as indicated by incorporation of 14C-labelled leucine into macrophage proteins and their content of lactate dehydrogenase. The results obtained suggest that rooperol esters are potentially useful antiinflammatory agents.
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Affiliation(s)
- A Guzdek
- Institute of Molecular Biology, Collegium Medicum, Jagiellonian University, Cracow, Poland
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Casini-Raggi V, Monsacchi L, Vosbeck K, Nast CC, Pizarro TT, Cominelli F. Anti-inflammatory effects of CGP 47969A, a novel inhibitor of proinflammatory cytokine synthesis, in rabbit immune colitis. Gastroenterology 1995; 109:812-8. [PMID: 7657109 DOI: 10.1016/0016-5085(95)90388-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
BACKGROUND & AIMS Proinflammatory cytokines such as interleukin (IL) 1, IL-8, and tumor necrosis factor (TNF) have been implicated as primary mediators of intestinal inflammation. The aim of the present study was to determine the effects of a novel cytokine antagonist (CGP 47969A) in a rabbit model of acute colitis. METHODS Colitis was induced using the formalin-immune complex technique. Animals were pretreated intrarectally with CGP 47969A (30, 10, or 3 mg/kg), hydrocortisone (0.8 mg/kg), or vehicle (4 mL saline) 2 hours before the induction of colitis and twice daily thereafter until death 48 hours after the induction of colitis. The severity of inflammation of colonic tissue was assessed using histological analysis and myeloperoxidase activity assay, and IL-1 alpha, IL-8, TNF-alpha, and IL-1 receptor antagonist levels were determined. RESULTS Compared with vehicle, CGP 47969A (10 mg/kg) significantly reduced the acute inflammatory index by 58%, edema by 67%, necrosis by 99%, and myeloperoxidase activity by 49% (all P < 0.02) with efficacy similar to that of steroids. These effects were associated with a significant inhibition of colonic IL-1 alpha and IL-8 by 56% and 90%, respectively (p < 0.01). CONCLUSIONS Administration of CGP 47969A reduces inflammation and tissue damage in rabbit immune complex colitis through mechanisms involving the inhibition of mucosal proinflammatory cytokines.
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Affiliation(s)
- V Casini-Raggi
- Department of Medicine, School of Medicine, University of Southern California, Los Angeles, USA
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