PMID- 27450484 OWN - NLM STAT- MEDLINE DCOM- 20170306 LR - 20171116 IS - 1879-0712 (Electronic) IS - 0014-2999 (Linking) VI - 789 DP - 2016 Oct 15 TI - Use of a balanced dual cyclooxygenase-1/2 and 5-lypoxygenase inhibitor in experimental colitis. PG - 152-162 LID - S0014-2999(16)30473-3 [pii] LID - 10.1016/j.ejphar.2016.07.033 [doi] AB - Cyclooxygenase (COX) and 5-lipoxygenase (5-LOX) play an important role in inflammatory bowel diseases (IBDs). We investigated the effects of flavocoxid, a dual COX/LOX inhibitor, in experimental colitis induced with either dinitrobenzenesulfonic acid (DNBS) or dextrane sulphate sodium (DSS) In the first model, colitis was induced in rats by a single intra-colonic instillation (25mg in 0.8ml 50% ethanol) of DNBS; after 24h animals were randomized to receive orally twice a day, flavocoxid (10mg/kg), zileuton (50mg/kg), or celecoxib (5mg/kg). Sham animals received 0.8ml of saline by a single intra-colonic instillation. Rats were killed 4 days after induction and samples were collected for analysis. In the second model, colitis was induced in rats by the administration of 8% DSS dissolved in drinking water; after 24h animals were randomized to the same above reported treatments. Sham animals received standard drinking water. Rats were killed 5 days after induction and samples were collected for analysis. Flavocoxid, zileuton and celecoxib improved weight loss, reduced colonic myeloperoxydase activity, macroscopic and microscopic damage, and TNF-alpha serum levels. Flavocoxid and celecoxib also reduced malondialdheyde, 6-keto PGF1alpha and PGE-2 levels while flavocoxid and zileuton decreased LTB-4 levels. In addition, flavocoxid treatment improved histological features and apoptosis as compared to zileuton and celecoxib; moreover only flavocoxid reduced TXB2, thus avoiding an imbalance in eicosanoids production. Our results show that flavocoxid has protective effect in IBDs and may represents a future safe treatment for inflammatory bowel diseases. CI - Copyright (c) 2016 Elsevier B.V. All rights reserved. FAU - Pallio, Giovanni AU - Pallio G AD - Department of Clinical and Experimental Medicine, Section of Pharmacology University of Messina, via Consolare Valeria 1 Messina, Italy. FAU - Bitto, Alessandra AU - Bitto A AD - Department of Clinical and Experimental Medicine, Section of Pharmacology University of Messina, via Consolare Valeria 1 Messina, Italy. FAU - Pizzino, Gabriele AU - Pizzino G AD - Department of Clinical and Experimental Medicine, Section of Pharmacology University of Messina, via Consolare Valeria 1 Messina, Italy. FAU - Galfo, Federica AU - Galfo F AD - Department of Clinical and Experimental Medicine, Section of Pharmacology University of Messina, via Consolare Valeria 1 Messina, Italy. FAU - Irrera, Natasha AU - Irrera N AD - Department of Clinical and Experimental Medicine, Section of Pharmacology University of Messina, via Consolare Valeria 1 Messina, Italy. FAU - Minutoli, Letteria AU - Minutoli L AD - Department of Clinical and Experimental Medicine, Section of Pharmacology University of Messina, via Consolare Valeria 1 Messina, Italy. FAU - Arcoraci, Vincenzo AU - Arcoraci V AD - Department of Clinical and Experimental Medicine, Section of Pharmacology University of Messina, via Consolare Valeria 1 Messina, Italy. FAU - Squadrito, Giovanni AU - Squadrito G AD - Department of Human Pathology University of Messina, via Consolare Valeria 1 Messina, Italy. FAU - Macri, Antonio AU - Macri A AD - Department of Human Pathology University of Messina, via Consolare Valeria 1 Messina, Italy. FAU - Squadrito, Francesco AU - Squadrito F AD - Department of Clinical and Experimental Medicine, Section of Pharmacology University of Messina, via Consolare Valeria 1 Messina, Italy. Electronic address: Francesco.Squadrito@unime.it. FAU - Altavilla, Domenica AU - Altavilla D AD - Department of of Biomedical and Dental Sciences and Morphofunctional Imaging, University of Messina, via Consolare Valeria 1 Messina, Italy. LA - eng PT - Journal Article DEP - 20160721 PL - Netherlands TA - Eur J Pharmacol JT - European journal of pharmacology JID - 1254354 RN - 0 (CD3 Complex) RN - 0 (Cyclooxygenase 2 Inhibitors) RN - 0 (Drug Combinations) RN - 0 (Lipoxygenase Inhibitors) RN - 0 (Tumor Necrosis Factor-alpha) RN - 0 (flavocoxid) RN - 1HGW4DR56D (Leukotriene B4) RN - 54397-85-2 (Thromboxane B2) RN - 58962-34-8 (6-Ketoprostaglandin F1 alpha) RN - 8R1V1STN48 (Catechin) RN - EC 1.13.11.34 (Arachidonate 5-Lipoxygenase) RN - EC 1.14.99.1 (Cyclooxygenase 1) RN - EC 1.14.99.1 (Cyclooxygenase 2) RN - JCX84Q7J1L (Celecoxib) RN - K7Q1JQR04M (Dinoprostone) RN - V1L22WVE2S (zileuton) RN - X6Q56QN5QC (Hydroxyurea) SB - IM MH - 6-Ketoprostaglandin F1 alpha/metabolism MH - Animals MH - Apoptosis/drug effects MH - Arachidonate 5-Lipoxygenase/*metabolism MH - Body Weight/drug effects MH - CD3 Complex/metabolism MH - Catechin/*pharmacology/therapeutic use MH - Celecoxib/*pharmacology/therapeutic use MH - Colitis/*drug therapy/immunology/metabolism/pathology MH - Cyclooxygenase 1/*metabolism MH - Cyclooxygenase 2/*metabolism MH - Cyclooxygenase 2 Inhibitors/pharmacology/therapeutic use MH - Dinoprostone/metabolism MH - Drug Combinations MH - Eating/drug effects MH - Gene Expression Regulation/drug effects MH - Hydroxyurea/*analogs & derivatives/pharmacology/therapeutic use MH - Leukotriene B4/metabolism MH - Lipid Peroxidation/drug effects MH - Lipoxygenase Inhibitors/pharmacology/therapeutic use MH - Male MH - Neutrophil Infiltration/drug effects MH - Rats MH - Rats, Sprague-Dawley MH - Thromboxane B2/metabolism MH - Tumor Necrosis Factor-alpha/metabolism OTO - NOTNLM OT - Apoptosis OT - Baicalin OT - Catechin OT - LTB-4 OT - PGE-2 EDAT- 2016/07/28 06:00 MHDA- 2017/03/07 06:00 CRDT- 2016/07/25 06:00 PHST- 2016/06/08 00:00 [received] PHST- 2016/07/18 00:00 [revised] PHST- 2016/07/20 00:00 [accepted] PHST- 2016/07/25 06:00 [entrez] PHST- 2016/07/28 06:00 [pubmed] PHST- 2017/03/07 06:00 [medline] AID - S0014-2999(16)30473-3 [pii] AID - 10.1016/j.ejphar.2016.07.033 [doi] PST - ppublish SO - Eur J Pharmacol. 2016 Oct 15;789:152-162. doi: 10.1016/j.ejphar.2016.07.033. Epub 2016 Jul 21.