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Arabacı Tamer S, Mermer KS, Erdoğan Ö, Çevik Ö, Ercan F, Bağcı C, Yeğen BÇ. Neuropeptide W facilitates chronic gastric ulcer healing by the regulation of cyclooxygenase and NF-κB signaling pathways. Inflammopharmacology 2024; 32:1519-1529. [PMID: 38227096 PMCID: PMC11006733 DOI: 10.1007/s10787-023-01403-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 11/24/2023] [Indexed: 01/17/2024]
Abstract
AIMS Putative beneficial effects of neuropeptide W (NPW) in the early phase of gastric ulcer healing process and the involvement of cyclooxygenase (COX) enzymes were investigated in an acetic acid-induced gastric ulcer model. MAIN METHODS In anesthetized male Sprague-Dawley rats, acetic acid was applied surgically on the serosa and then a COX-inhibitor (COX-2-selective NS-398, COX-1-selective ketorolac, or non-selective indomethacin; 2 mg/kg/day, 3 mg/kg/day or 5 mg/kg/day; respectively) or saline was injected intraperitoneally. One h after ulcer induction, omeprazole (20 mg/kg/day), NPW (0.1 μg/kg/day) or saline was intraperitoneally administered. Injections of NPW, COX-inhibitors, omeprazole or saline were continued for the following 2 days until rats were decapitated at the end of the third day. KEY FINDINGS NPW treatment depressed gastric prostaglandin (PG) I2 level, but not PGE2 level. Similar to omeprazole, NPW treatment significantly reduced gastric and serum tumor necrosis factor-alpha and interleukin-1 beta levels and depressed the upregulation of nuclear factor kappa B (NF-κB) and COX-2 expressions due to ulcer. In parallel with the histopathological findings, treatment with NPW suppressed ulcer-induced increases in myeloperoxidase activity and malondialdehyde level and replenished glutathione level. However, the inhibitory effect of NPW on myeloperoxidase activity and NPW-induced increase in glutathione were not observed in the presence of COX-1 inhibitor ketorolac or the non-selective COX-inhibitor indomethacin. SIGNIFICANCE In conclusion, NPW facilitated the healing of gastric injury in rats via the inhibition of pro-inflammatory cytokine production, oxidative stress and neutrophil infiltration as well as the downregulation of COX-2 protein and NF-κB gene expressions.
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Affiliation(s)
- Sevil Arabacı Tamer
- Department of Physiology, Sakarya University School of Medicine, Sakarya, Turkey
| | - Kadriye Sezen Mermer
- Department of Physiology, Marmara University School of Medicine, Istanbul, Turkey
| | - Ömer Erdoğan
- Faculty of Medicine, Department of Biochemistry, Aydın Adnan Menderes University, Aydın, Turkey
| | - Özge Çevik
- Faculty of Medicine, Department of Biochemistry, Aydın Adnan Menderes University, Aydın, Turkey
| | - Feriha Ercan
- Department of Histology & Embryology, Marmara University School of Medicine, Istanbul, Turkey
| | - Cahit Bağcı
- Department of Physiology, Sakarya University School of Medicine, Sakarya, Turkey
| | - Berrak Ç Yeğen
- Department of Physiology, Marmara University School of Medicine, Istanbul, Turkey.
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Mazi TA, Shibata NM, Sarode GV, Medici V. Hepatic oxylipin profiles in mouse models of Wilson disease: New insights into early hepatic manifestations. Biochim Biophys Acta Mol Cell Biol Lipids 2024; 1869:159446. [PMID: 38072238 DOI: 10.1016/j.bbalip.2023.159446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 12/01/2023] [Accepted: 12/07/2023] [Indexed: 12/17/2023]
Abstract
Hepatic inflammation is commonly identified in Wilson disease (WD), a genetic disease of hepatic and brain copper accumulation. Copper accumulation is associated with increased oxidative stress and reactive oxygen species generation which may result in non-enzymatic oxidation of membrane-bound polyunsaturated fatty acids (PUFA). PUFA can be oxidized enzymatically via lipoxygenases (LOX), cyclooxygenases (COX), and cytochrome P450 monooxygenases (CYP). Products of PUFA oxidation are collectively known as oxylipins (OXL) and are bioactive lipids that modulate hepatic inflammation. We examined hepatic OXL profiles at early stages of WD in two mouse models, the toxic milk mouse from The Jackson Laboratory (tx-j) and the Atp7b knockout on a C57Bl/6 background (Atp7b-/-B6). Targeted lipidomic analysis performed by ultra-high-performance liquid chromatography-electrospray ionization-tandem mass spectrometry showed that in both tx-j and Atp7b-/-B6 mice, hepatic OXL profiles were altered with higher thromboxane and prostaglandins levels. The levels of oxidative stress marker, 9-HETE were increased more markedly in tx-j mice. However, both genotypes showed upregulated transcript levels of many genes related to oxidative stress and inflammation. Both genotypes showed higher prostaglandins, thromboxin along with higher PUFA-derived alcohols, diols, and ketones with altered epoxides; the expression of Alox5 was upregulated and many CYP-related genes were dysregulated. Pathway analyses show dysregulation in arachidonic acid and linoleic acid metabolism characterizes mice with WD. Our findings indicate alterations in hepatic PUFA metabolism in early-stage WD and suggest the upregulation of both, non-enzymatic ROS-dependent and enzymatic PUFA oxidation, which could have implications for hepatic manifestations in WD and represent potential targets for future therapies.
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Affiliation(s)
- Tagreed A Mazi
- Department of Community Health Sciences-Clinical Nutrition, College of Applied Medical Sciences, King Saud University, P.O. Box 10219, Riyadh 11433, Saudi Arabia.
| | - Noreene M Shibata
- Department of Internal Medicine, Division of Gastroenterology and Hepatology, University of California Davis, 4150 V Street, Suite 3500, Sacramento, CA 95817, USA
| | - Gaurav V Sarode
- Department of Internal Medicine, Division of Gastroenterology and Hepatology, University of California Davis, 4150 V Street, Suite 3500, Sacramento, CA 95817, USA
| | - Valentina Medici
- Department of Internal Medicine, Division of Gastroenterology and Hepatology, University of California Davis, 4150 V Street, Suite 3500, Sacramento, CA 95817, USA.
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Martín-Vázquez E, Cobo-Vuilleumier N, López-Noriega L, Lorenzo PI, Gauthier BR. The PTGS2/COX2-PGE 2 signaling cascade in inflammation: Pro or anti? A case study with type 1 diabetes mellitus. Int J Biol Sci 2023; 19:4157-4165. [PMID: 37705740 PMCID: PMC10496497 DOI: 10.7150/ijbs.86492] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [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: 05/24/2023] [Accepted: 07/24/2023] [Indexed: 09/15/2023] Open
Abstract
Prostaglandins are lipid mediators involved in physiological processes, such as constriction or dilation of blood vessels, but also pathophysiological processes, which include inflammation, pain and fever. They are produced by almost all cell types in the organism by activation of Prostaglandin endoperoxide synthases/Cyclooxygenases. The inducible Prostaglandin Endoperoxide Synthase 2/Cyclooxygenase 2 (PTGS2/COX2) plays an important role in pathologies associated with inflammatory signaling. The main product derived from PTGS2/COX2 expression and activation is Prostaglandin E2 (PGE2), which promotes a wide variety of tissue-specific effects, pending environmental inputs. One of the major sources of PGE2 are infiltrating inflammatory cells - the production of this molecule increases drastically in damaged tissues. Immune infiltration is a hallmark of type 1 diabetes mellitus, a multifactorial disease that leads to autoimmune-mediated pancreatic beta cell destruction. Controversial effects for the PTGS2/COX2-PGE2 signaling cascade in pancreatic islet cells subjected to diabetogenic conditions have been reported, allocating PGE2 as both, cause and consequence of inflammation. Herein, we review the main effects of this molecular pathway in a tissue-specific manner, with a special emphasis on beta cell mass protection/destruction and its potential role in the prevention or development of T1DM. We also discuss strategies to target this pathway for future therapies.
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Affiliation(s)
- Eugenia Martín-Vázquez
- Andalusian Center of Molecular Biology and Regenerative Medicine CABIMER, Junta de Andalucia-University of Pablo de Olavide-University of Seville-CSIC, Seville, Spain
| | - Nadia Cobo-Vuilleumier
- Andalusian Center of Molecular Biology and Regenerative Medicine CABIMER, Junta de Andalucia-University of Pablo de Olavide-University of Seville-CSIC, Seville, Spain
| | - Livia López-Noriega
- Andalusian Center of Molecular Biology and Regenerative Medicine CABIMER, Junta de Andalucia-University of Pablo de Olavide-University of Seville-CSIC, Seville, Spain
| | - Petra I. Lorenzo
- Andalusian Center of Molecular Biology and Regenerative Medicine CABIMER, Junta de Andalucia-University of Pablo de Olavide-University of Seville-CSIC, Seville, Spain
| | - Benoit R. Gauthier
- Andalusian Center of Molecular Biology and Regenerative Medicine CABIMER, Junta de Andalucia-University of Pablo de Olavide-University of Seville-CSIC, Seville, Spain
- Centro de Investigacion Biomedica en Red de Diabetes y Enfermedades Metabolicas Asociadas (CIBERDEM), Madrid, Spain
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Qahtan MQM, Bakhite EA, Kumari J, M Sayed A, Kandeel M, Sriram D, Abdu-Allah HHM. Synthesis, biological evaluation and molecular docking study of some new 4-aminosalicylic acid derivatives as anti-inflammatory and antimycobacterial agents. Bioorg Chem 2023; 132:106344. [PMID: 36669356 DOI: 10.1016/j.bioorg.2023.106344] [Citation(s) in RCA: 2] [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: 10/22/2022] [Revised: 12/27/2022] [Accepted: 01/04/2023] [Indexed: 01/13/2023]
Abstract
In this study, new derivatives of the antitubercular and anti-inflammatory drug, 4-aminosaliclic acids (4-ASA) were synthesized, characterized, and evaluated for these activities. In vivo and in viro evaluation of anti-inflammatory activity revealed that compounds 10, 19 and 20 are the most active with potent cyclooxygenase-2 (COX-2) and 5-lipooxgenase (5-LOX) inhibition and without causing gasric lesions. The minimum inhibitory concentrations (MIC) of the newly synthesized compound were, also, measured against Mycobacterium tuberculosis H37RV. Among the tested compounds 17, 19 and 20 exhibited significant activities against the growth of M. tuberculosis. 20 is the most potent with (MIC 1.04 µM) 2.5 folds more potent than the parent drug 4-ASA. 20 displayed low cytotoxicity against normal cell providing a high therapeutic index. Important structure features were analyzed by docking and structure-activity relationship analysis to give better insights into the structural determinants for predicting the anti-inflammatory and anti-TB activities. Our results indicated that compounds 19 and 20 are potential lead compounds for the discovery of dual anti-inflammatory and anti-TB drug candidates.
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Affiliation(s)
- Maha Q M Qahtan
- Chemistry Department, Faculty of Science, Assiut University, Assiut 71516, Egypt; Chemistry Department, Faculty of Science, Taiz University, Taiz, Yemen
| | - Etify A Bakhite
- Chemistry Department, Faculty of Science, Assiut University, Assiut 71516, Egypt
| | - Jyothi Kumari
- Department of Pharmacy, Birla Institute of Technology & Science-Pilani, Hyderabad Campus, Jawahar Nagar, Hyderabad 500 078, India
| | - Ahmed M Sayed
- Chemistry Department, Faculty of Science, Assiut University, Assiut 71516, Egypt
| | - Mahmoud Kandeel
- Department of Biomedical Sciences, College of Veterinary Medicine, King Faisal University, Al-Ahsa 31982, Saudi Arabia; Department of Pharmacology, Faculty of Veterinary Medicine, Kafrelsheikh University, Kafrelsheikh 33516, Egypt
| | - Dharmarajan Sriram
- Department of Pharmacy, Birla Institute of Technology & Science-Pilani, Hyderabad Campus, Jawahar Nagar, Hyderabad 500 078, India
| | - Hajjaj H M Abdu-Allah
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Assiut University, Assiut 71526, Egypt.
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Panchal NK, Prince Sabina E. Non-steroidal anti-inflammatory drugs (NSAIDs): A current insight into its molecular mechanism eliciting organ toxicities. Food Chem Toxicol 2023; 172:113598. [PMID: 36608735 DOI: 10.1016/j.fct.2022.113598] [Citation(s) in RCA: 22] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 12/21/2022] [Accepted: 12/30/2022] [Indexed: 01/05/2023]
Abstract
Non-steroidal anti-inflammatory drugs (NSAIDs) are a class of medications that are routinely been used across the world. Their analgesic, anti-inflammatory, and antipyretic effects have all been well-documented. Moreover, they are been deliberated to have a protective role against various critical diseases such as cancer and cardiovascular diseases. However, the data presented by numerous studies in past have signified the adverse effects of NSAIDs due to overdosing on various systems such as cardiovascular, gastrointestinal, hepatic, renal, neural, etc. Despite substantial studies representing the mechanism behind the clinical risk of NSAIDs, there are very few reviews that have collated comprehensive records of various toxicities caused by overdosing on NSAIDs. As a result, we have presented a comprehensive overview of existing information on NSAIDs in this review. In addition to that, we have concentrated on presenting our understanding of various organ-based toxicities caused due to NSAID's prolonged use/overdosage.
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Affiliation(s)
- Nagesh Kishan Panchal
- Department of Biotechnology, School of Biosciences and Technology Vellore Institute of Technology, Vellore, India
| | - Evan Prince Sabina
- Department of Biotechnology, School of Biosciences and Technology Vellore Institute of Technology, Vellore, India.
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Arabacı Tamer S, Akbulut S, Erdoğan Ö, Çevik Ö, Ercan F, Yeğen BÇ. Neuropeptide W Exhibits Preventive and Therapeutic Effects on Acetic Acid-Induced Colitis via Modulation of the Cyclooxygenase Enzyme System. Dig Dis Sci 2023; 68:2441-2453. [PMID: 36631709 DOI: 10.1007/s10620-022-07811-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Accepted: 12/21/2022] [Indexed: 01/13/2023]
Abstract
BACKGROUND The novel peptide neuropeptide W (NPW) was originally shown to function in the control of feeding behavior and energy homeostasis. The aim of this study was to elucidate the putative preventive and therapeutic effects of NPW on colitis-associated oxidative injury and the underlying mechanisms for its action. METHODS Sprague-Dawley rats in the acute colitis groups received NPW (0.5, 1 or 5 µg/kg/day) injections prior to induction of colitis with acetic acid, while the chronic colitis groups were treated after the induction of colitis. In both acute and chronic colitis (CC) groups, treatments were continued for 5 days and the rats were decapitated at the 24th hour of the last injections and colon tissues were collected for assessments. RESULTS NPW pretreatment given for 5 days before colitis induction, as well as treating rats with NPW during the 5-day course of CC, abolished colonic lipid peroxidation. NPW treatment prevented colitis-induced reduction in blood flow, diminished neutrophil infiltration, and pro-inflammatory cytokine responses. NPW pretreatment only at the higher dose reduced colonic edema and microscopic score and preserved colonic glutathione stores. Elevations in cyclooxygenase (COX) enzyme activity and COX-1 protein level during the acute phase of colitis as well as reduction in COX-2 were all reversed with NPW pretreatment. In contrast, NPW treatment was effective in reducing the elevated COX-2 concentration during the chronic phase. CONCLUSIONS NPW alleviates acetic acid-induced oxidative colonic injury in rats through the upregulation of colonic blood flow as well as the inhibition of COX-2 protein expression and pro-inflammatory cytokine production.
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Affiliation(s)
- Sevil Arabacı Tamer
- Department of Physiology, Marmara University School of Medicine, Basibüyük Mah. Maltepe Basibüyük Yolu No. 9/1, Maltepe, 34854, Istanbul, Turkey.,Department of Physiology, Sakarya University School of Medicine, Sakarya, Turkey
| | - Selin Akbulut
- Department of Histology & Embryology, Marmara University School of Medicine, Istanbul, Turkey
| | - Ömer Erdoğan
- Department of Biochemistry, Aydın Adnan Menderes University Faculty of Medicine, Aydın, Turkey
| | - Özge Çevik
- Department of Biochemistry, Aydın Adnan Menderes University Faculty of Medicine, Aydın, Turkey
| | - Feriha Ercan
- Department of Histology & Embryology, Marmara University School of Medicine, Istanbul, Turkey
| | - Berrak Ç Yeğen
- Department of Physiology, Marmara University School of Medicine, Basibüyük Mah. Maltepe Basibüyük Yolu No. 9/1, Maltepe, 34854, Istanbul, Turkey.
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Yi J, Che H, Ren J, Yu H, Song K, Wang X, Zhao X, Wang X, Li Q. Insights into the interaction of cyclooxygenase and lipoxygenase with natural compound 3,4',5,7-Tetrahydroxyflavone based on multi-spectroscopic and metabolomics. Spectrochim Acta A Mol Biomol Spectrosc 2023; 284:121800. [PMID: 36067623 DOI: 10.1016/j.saa.2022.121800] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 08/23/2022] [Accepted: 08/26/2022] [Indexed: 06/15/2023]
Abstract
Hypoxia induce right ventricular dysfunction in human heart, but the molecular mechanism remains limited. As known, cyclooxygenases (COX) and lipoxygenases (LOX) play a key role in the cardiovascular system under hypoxia. 3,4',5,7-Tetrahydroxyflavone (THF), which widely exists in a variety of plants and vegetables, is famous for good ability to relieve cardiac injury, but the mechanism remains to be further understood. In this study, we firstly estimated the preventive role of THF against hypoxia-induced right ventricular dysfunction. Metabolomics analysis showed there were differential metabolites involved in above process, which helped us to screen the crucial regulated enzymes of these metabolites. Molecular docking and multi-spectroscopic revealed the molecular mechanism of interaction between THF and COX/LOX. Results suggested that THF bound to COX/LOX through static quenching and these bindings were driven by hydrogen bonds. After binding with THF, the secondary structure of COX/LOX was changed. In general, this study indicated that THF inhibited COX/LOX by spontaneously forming complexes with them.
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Affiliation(s)
- Jie Yi
- Department of Pharmaceutical Analysis and Analytical Chemistry, College of Pharmacy, Harbin Medical University, No. 157 Baojian Road, Nangang District, Harbin 150081, Heilongjiang, PR China
| | - Haixia Che
- Department of Pharmaceutical Analysis and Analytical Chemistry, College of Pharmacy, Harbin Medical University, No. 157 Baojian Road, Nangang District, Harbin 150081, Heilongjiang, PR China
| | - Jiping Ren
- Department of Pharmaceutical Analysis and Analytical Chemistry, College of Pharmacy, Harbin Medical University, No. 157 Baojian Road, Nangang District, Harbin 150081, Heilongjiang, PR China
| | - Hong Yu
- Department of Pharmaceutical Analysis and Analytical Chemistry, College of Pharmacy, Harbin Medical University, No. 157 Baojian Road, Nangang District, Harbin 150081, Heilongjiang, PR China
| | - Kexin Song
- Department of Pharmaceutical Analysis and Analytical Chemistry, College of Pharmacy, Harbin Medical University, No. 157 Baojian Road, Nangang District, Harbin 150081, Heilongjiang, PR China
| | - Xiaoying Wang
- Central Laboratory of Harbin Medical University (Daqing), Daqing 163319, PR China; College of Pharmacy, Harbin Medical University, Harbin 150081, PR China
| | - Xiaoting Zhao
- Department of Pharmaceutical Analysis and Analytical Chemistry, College of Pharmacy, Harbin Medical University, No. 157 Baojian Road, Nangang District, Harbin 150081, Heilongjiang, PR China
| | - Xianyao Wang
- Department of Pharmaceutical Analysis and Analytical Chemistry, College of Pharmacy, Harbin Medical University, No. 157 Baojian Road, Nangang District, Harbin 150081, Heilongjiang, PR China
| | - Qian Li
- Department of Pharmaceutical Analysis and Analytical Chemistry, College of Pharmacy, Harbin Medical University, No. 157 Baojian Road, Nangang District, Harbin 150081, Heilongjiang, PR China.
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Bruno A, Contursi A, Tacconelli S, Sacco A, Hofling U, Mucci M, Lamolinara A, Del Pizzo F, Ballerini P, Di Gregorio P, Yu Y, Patrignani P. The specific deletion of cyclooxygenase-1 in megakaryocytes/platelets reduces intestinal polyposis in Apc Min/+ mice. Pharmacol Res 2022; 185:106506. [PMID: 36241001 DOI: 10.1016/j.phrs.2022.106506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 09/26/2022] [Accepted: 10/09/2022] [Indexed: 10/31/2022]
Abstract
Clinical and experimental evidence sustain the role of cyclooxygenase (COX)-1 in intestinal tumorigenesis. However, the cell type expressing the enzyme involved and molecular mechanism(s) have not been clarified yet. We aimed to elucidate the role of platelet COX-1 (the target of low-dose aspirin in humans) in intestinal tumorigenesis of ApcMin/+ mice, considered a clinically relevant model. To realize this objective, we generated an ApcMin/+ mouse with a specific deletion of Ptgs1(COX-1 gene name) in megakaryocytes/platelets (ApcMin/+;pPtgs1-/-mice) characterized by profound inhibition of thromboxane(TX)A2 biosynthesis ex vivo (serum TXB2; by 99%) and in vivo [urinary 2,3-dinor-TXB2(TXM), by 79%]. ApcMin/+ mice with the deletion of platelet COX-1 showed a significantly reduced number (67%) and size (32%) of tumors in the small intestine. The intestinal adenomas of these mice had decreased proliferative index associated with reduced COX-2 expression and systemic prostaglandin(PG)E2 biosynthesis (urinary PGEM) vs. ApcMin/+mice. Extravasated platelets were detected in the intestine of ApcMin/+mice. Thus, we explored their contribution to COX-2 induction in fibroblasts, considered the primary polyp cell type expressing the protein. In the coculture of human platelets and myofibroblasts, platelet-derived TXA2 was involved in the induction of COX-2-dependent PGE2 in myofibroblasts since it was prevented by the selective inhibition of platelet COX-1 by aspirin or by a specific antagonist of TXA2 receptors. In conclusion, our results support the platelet hypothesis of intestinal tumorigenesis and provide experimental evidence that selective inhibition of platelet COX-1 can mitigate early events of intestinal tumorigenesis by restraining COX-2 induction.
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Affiliation(s)
- Annalisa Bruno
- Center for Advanced Studies and Technology (CAST), "G.d'Annunzio" University, 66100 Chieti, Italy; Department of Neuroscience, Imaging and Clinical Science, "G.d'Annunzio" University, 66100 Chieti, Italy
| | - Annalisa Contursi
- Center for Advanced Studies and Technology (CAST), "G.d'Annunzio" University, 66100 Chieti, Italy; Department of Neuroscience, Imaging and Clinical Science, "G.d'Annunzio" University, 66100 Chieti, Italy
| | - Stefania Tacconelli
- Center for Advanced Studies and Technology (CAST), "G.d'Annunzio" University, 66100 Chieti, Italy; Department of Neuroscience, Imaging and Clinical Science, "G.d'Annunzio" University, 66100 Chieti, Italy
| | - Angela Sacco
- Center for Advanced Studies and Technology (CAST), "G.d'Annunzio" University, 66100 Chieti, Italy; Department of Neuroscience, Imaging and Clinical Science, "G.d'Annunzio" University, 66100 Chieti, Italy
| | - Ulrika Hofling
- Center for Advanced Studies and Technology (CAST), "G.d'Annunzio" University, 66100 Chieti, Italy; Department of Neuroscience, Imaging and Clinical Science, "G.d'Annunzio" University, 66100 Chieti, Italy
| | - Matteo Mucci
- Center for Advanced Studies and Technology (CAST), "G.d'Annunzio" University, 66100 Chieti, Italy; Department of Neuroscience, Imaging and Clinical Science, "G.d'Annunzio" University, 66100 Chieti, Italy
| | - Alessia Lamolinara
- Center for Advanced Studies and Technology (CAST), "G.d'Annunzio" University, 66100 Chieti, Italy; Department of Neuroscience, Imaging and Clinical Science, "G.d'Annunzio" University, 66100 Chieti, Italy
| | - Francesco Del Pizzo
- Center for Advanced Studies and Technology (CAST), "G.d'Annunzio" University, 66100 Chieti, Italy
| | - Patrizia Ballerini
- Center for Advanced Studies and Technology (CAST), "G.d'Annunzio" University, 66100 Chieti, Italy; Department of Innovative Technologies in Medicine and Dentistry, "G.d'Annunzio" University, 66100 Chieti, Italy
| | - Patrizia Di Gregorio
- Institute of Transfusion Medicine, "Ss. Annunziata" Hospital, 66100 Chieti, Italy
| | - Ying Yu
- Department of Pharmacology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin 300070, China
| | - Paola Patrignani
- Center for Advanced Studies and Technology (CAST), "G.d'Annunzio" University, 66100 Chieti, Italy; Department of Neuroscience, Imaging and Clinical Science, "G.d'Annunzio" University, 66100 Chieti, Italy.
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Hall DCN, Benndorf RA. Aspirin sensitivity of PIK3CA-mutated Colorectal Cancer: potential mechanisms revisited. Cell Mol Life Sci 2022; 79:393. [PMID: 35780223 PMCID: PMC9250486 DOI: 10.1007/s00018-022-04430-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 06/01/2022] [Accepted: 06/14/2022] [Indexed: 11/30/2022]
Abstract
PIK3CA mutations are amongst the most prevalent somatic mutations in cancer and are associated with resistance to first-line treatment along with low survival rates in a variety of malignancies. There is evidence that patients carrying PIK3CA mutations may benefit from treatment with acetylsalicylic acid, commonly known as aspirin, particularly in the setting of colorectal cancer. In this regard, it has been clarified that Class IA Phosphatidylinositol 3-kinases (PI3K), whose catalytic subunit p110α is encoded by the PIK3CA gene, are involved in signal transduction that regulates cell cycle, cell growth, and metabolism and, if disturbed, induces carcinogenic effects. Although PI3K is associated with pro-inflammatory cyclooxygenase-2 (COX-2) expression and signaling, and COX-2 is among the best-studied targets of aspirin, the mechanisms behind this clinically relevant phenomenon are still unclear. Indeed, there is further evidence that the protective, anti-carcinogenic effect of aspirin in this setting may be mediated in a COX-independent manner. However, until now the understanding of aspirin's prostaglandin-independent mode of action is poor. This review will provide an overview of the current literature on this topic and aims to analyze possible mechanisms and targets behind the aspirin sensitivity of PIK3CA-mutated cancers.
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Affiliation(s)
- Daniella C N Hall
- Department of Clinical Pharmacy and Pharmacotherapy, Institute of Pharmacy, Martin-Luther-University Halle-Wittenberg, Kurt-Mothes-Str. 3, 06120, Halle (Saale), Germany
| | - Ralf A Benndorf
- Department of Clinical Pharmacy and Pharmacotherapy, Institute of Pharmacy, Martin-Luther-University Halle-Wittenberg, Kurt-Mothes-Str. 3, 06120, Halle (Saale), Germany.
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10
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Lyu L, Wang R, Wen H, Li Y, Li J, Wang X, Yao Y, Li J, Qi X. Cyclooxygenases of ovoviviparous black rockfish (Sebastes schlegelii): Cloning, tissue distribution and potential role in mating and parturition. Comp Biochem Physiol B Biochem Mol Biol 2021; 257:110677. [PMID: 34653596 DOI: 10.1016/j.cbpb.2021.110677] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 09/19/2021] [Accepted: 10/06/2021] [Indexed: 01/14/2023]
Abstract
Prostaglandins are a series of unsaturated fatty acids that play critical roles in regulating reproductive events. The prostaglandins endoperoxide H synthases-1/2 (PGHS-1/2; also named cyclooxygenases-1/2, COX-1/2) catalyse the commitment step in prostaglandin synthesis. However, the of the cox genes in teleosts, especially ovoviviparous teleosts, is still unclear. The aim of the present study was to determine the potential role of cox genes in mating and parturition behaviour using black rockfish (Sebastes schlegelii) as a model species. Two transcripts, cox1 and cox2, were cloned. The phylogenetic analysis results revealed that both cox genes were closely related to mammalian coxs. qPCR analyses of their tissue distribution showed that cox1 was mainly expressed in the heart in both sexes, while cox2 was mainly expressed in the testis and ovary. Detection of cox expression in samples from reproductive-related stages further showed that both cox genes may play important roles in mating and parturition processes. In situ hybridization further detected positive cox mRNA signals in the testis and ovary, where they are known to be involved in mating and parturition behaviour. These data suggest that cox1 and cox2 are crucial in inducing mating, gonad regeneration and parturition behaviour.
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Affiliation(s)
- Likang Lyu
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, China
| | - Ru Wang
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, China
| | - Haishen Wen
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, China
| | - Yun Li
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, China
| | - Jianshuang Li
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, China
| | - Xiaojie Wang
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, China
| | - Yijia Yao
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, China
| | - Jifang Li
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, China
| | - Xin Qi
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, China.
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11
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Salgado MTSF, Lopes AC, Fernandes E Silva E, Cardoso JQ, Vidal RS, Cavalcante-Silva LHA, Carvalho DCM, Machado KDS, Rodrigues-Mascarenhas S, Rumjanek VM, Votto APDS. Relation between ABCB1 overexpression and COX2 and ALOX5 genes in human erythroleukemia cell lines. Prostaglandins Other Lipid Mediat 2021; 155:106553. [PMID: 33975019 DOI: 10.1016/j.prostaglandins.2021.106553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 04/23/2021] [Accepted: 05/05/2021] [Indexed: 10/21/2022]
Abstract
This study aimed to characterize the relationship between the COX2 and ALOX5 genes, as well as their link with the multidrug resistance (MDR) phenotype in sensitive (K562) and MDR (K562-Lucena and FEPS) erythroleukemia cells. For this, the inhibitors of 5-LOX (zileuton) and COX-2 (acetylsalicylic acid-ASA) and cells with the silenced ABCB1 gene were used. The treatment with ASA caused an increase in the gene expression of COX2 and ABCB1 in both MDR cell lines, and a decrease in the expression of ALOX5 in the FEPS cells. Silencing the ABCB1 gene induced a decrease in COX2 expression and an increase in the ALOX5 gene. Treatment with zileuton did not alter the expression of COX2 and ABCB1. Cytometry data showed that there was an increase in ABCB1 protein expression after exposure to ASA. In addition, the increased activity of ABCB1 in the K562-Lucena cell line indicates that ASA may be a substrate for this efflux pump, corroborating the molecular docking that showed that ASA can bind to ABCB1. Regardless of the genetic alteration in COX2 and ABCB1, the direct relationship between these genes and the inverse relationship with ALOX5 remained in the MDR cell lines. We assume that ABCB1 can play a regulatory role in COX2 and ALOX5 during the transformation of the parental cell line K562, explaining the increased gene expression of COX2 and decreased ALOX5 in the MDR cell lines.
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Affiliation(s)
| | - Alessandra Costa Lopes
- Laboratório de Cultura Celular, ICB, FURG, RS, Brazil; Escola de Química e Alimentos, EQA, FURG, RS, Brazil
| | | | | | | | | | | | | | | | | | - Ana Paula de Souza Votto
- Laboratório de Cultura Celular, ICB, FURG, RS, Brazil; Programa de Pós-Graduação em Ciências Fisiológicas, ICB, FURG, RS, Brazil.
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12
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Sadiq A, Mahnashi MH, Alyami BA, Alqahtani YS, Alqarni AO, Rashid U. Tailoring the substitution pattern of Pyrrolidine-2,5-dione for discovery of new structural template for dual COX/LOX inhibition. Bioorg Chem 2021; 112:104969. [PMID: 34023639 DOI: 10.1016/j.bioorg.2021.104969] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 04/24/2021] [Accepted: 05/03/2021] [Indexed: 12/28/2022]
Abstract
Dual inhibition of the enzymatic pathways of cyclooxygenases (COX-1/COX-2) and lipoxygenase (LOX) is a rational approach for developing more efficient and safe anti-inflammatory agents. Herein, dual inhibitors of COX and LOX for the management of inflammation are reported. The structural modifications of starting pyrrolidine-2,5-dione aldehyde derivatives resulted in two structurally diverse families (Family A & B). Synthesized derivatives from both Families displayed preferential COX-2 affinity in submicromolar to nanomolar ranges. Disubstitution pattern of the most active series of compounds having N-(benzyl(4-methoxyphenyl)amino moiety presents a new template that is mimic to the diaryl pattern of traditional COX-2 inhibitors. Compound 78 with IC50 value of 0.051 ± 0.001 μM emerged as the most active compound. Highly potent COX-2/5-LOX inhibitors have also demonstrated appreciable in-vivo anti-inflammatory activity through carrageenan induced paw edema test. Moreover, the involvement of histamine, bradykinin, prostaglandin, and leukotriene mediators to adjust the inflammatory response were also studied. Apart from COX inhibition, sulfonamide is considered an important template for carbonic anhydrase inhibition. Hence, we also evaluated six sulfonamide derivatives for off-target in-vitro bovine carbonic anhydrase-II inhibition. Biological results were finally rationalized by docking simulations. Typically, most active COX-2 inhibitors interact with the amino acid residues responsible for the COX-2 selectivity.
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Affiliation(s)
- Abdul Sadiq
- Department of Pharmacy, Faculty of Biological Sciences, University of Malakand, Chakdara, 18000 Dir (L), KP, Pakistan.
| | - Mater H Mahnashi
- Department of Pharmaceutical Chemistry, College of Pharmacy, Najran University, Najran, Saudi Arabia
| | - Bandar A Alyami
- Department of Pharmaceutical Chemistry, College of Pharmacy, Najran University, Najran, Saudi Arabia
| | - Yahya S Alqahtani
- Department of Pharmaceutical Chemistry, College of Pharmacy, Najran University, Najran, Saudi Arabia
| | - Ali O Alqarni
- Department of Pharmaceutical Chemistry, College of Pharmacy, Najran University, Najran, Saudi Arabia
| | - Umer Rashid
- Department of Chemistry, COMSATS University Islamabad, Abbottabad Campus, 22060 Abbottabad, Pakistan.
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13
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Suchiva P, Takai T, Kamijo S, Maruyama N, Yokomizo T, Sugimoto Y, Okumura K, Ikeda S, Ogawa H. Inhibition of Both Cyclooxygenase-1 and -2 Promotes Epicutaneous Th2 and Th17 Sensitization and Allergic Airway Inflammation on Subsequent Airway Exposure to Protease Allergen in Mice. Int Arch Allergy Immunol 2021; 182:788-799. [PMID: 33873179 DOI: 10.1159/000514975] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Accepted: 01/30/2021] [Indexed: 11/19/2022] Open
Abstract
INTRODUCTION Epicutaneous (e.c.) allergen exposure is an important route of sensitization toward allergic diseases in the atopic march. Allergen sources such as house dust mites contain proteases that involve in the pathogenesis of allergy. Prostanoids produced via pathways downstream of cyclooxygenases (COXs) regulate immune responses. Here, we demonstrate effects of COX inhibition with nonsteroidal anti-inflammatory drugs (NSAIDs) on e.c. sensitization to protease allergen and subsequent airway inflammation in mice. METHODS Mice were treated with NSAIDs during e.c. sensitization to a model protease allergen, papain, and/or subsequent intranasal challenge with low-dose papain. Serum antibodies, cytokine production in antigen-restimulated skin or bronchial draining lymph node (DLN) cells, and airway inflammation were analyzed. RESULTS In e.c. sensitization, treatment with a nonspecific COX inhibitor, indomethacin, promoted serum total and papain-specific IgE response and Th2 and Th17 cytokine production in skin DLN cells. After intranasal challenge, treatment with indomethacin promoted allergic airway inflammation and Th2 and Th17 cytokine production in bronchial DLN cells, which depended modestly or largely on COX inhibition during e.c. sensitization or intranasal challenge, respectively. Co-treatment with COX-1-selective and COX-2-selective inhibitors promoted the skin and bronchial DLN cell Th cytokine responses and airway inflammation more efficiently than treatment with either selective inhibitor. CONCLUSION The results suggest that the overall effects of COX downstream prostanoids are suppressive for development and expansion of not only Th2 but also, unexpectedly, Th17 upon exposure to protease allergens via skin or airways and allergic airway inflammation.
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Affiliation(s)
- Punyada Suchiva
- Atopy (Allergy) Research Center, Juntendo University Graduate School of Medicine, Tokyo, Japan.,Department of Dermatology and Allergology, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Toshiro Takai
- Atopy (Allergy) Research Center, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Seiji Kamijo
- Atopy (Allergy) Research Center, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Natsuko Maruyama
- Atopy (Allergy) Research Center, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Takehiko Yokomizo
- Department of Biochemistry, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Yukihiko Sugimoto
- Department of Pharmaceutical Biochemistry, Kumamoto University Graduate School of Pharmaceutical Sciences, Kumamoto, Japan
| | - Ko Okumura
- Atopy (Allergy) Research Center, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Shigaku Ikeda
- Atopy (Allergy) Research Center, Juntendo University Graduate School of Medicine, Tokyo, Japan.,Department of Dermatology and Allergology, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Hideoki Ogawa
- Department of Dermatology and Allergology, Juntendo University Graduate School of Medicine, Tokyo, Japan
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Andreadou EG, Katsipis G, Tsolaki M, Pantazaki AA. Involvement and relationship of bacterial lipopolysaccharides and cyclooxygenases levels in Alzheimer's Disease and Mild Cognitive Impairment patients. J Neuroimmunol 2021; 357:577561. [PMID: 34091099 DOI: 10.1016/j.jneuroim.2021.577561] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 02/24/2021] [Accepted: 03/29/2021] [Indexed: 11/30/2022]
Abstract
This study reports elevated levels of bacterial lipopolysaccharides (LPSs) and cyclooxygenases (COX-1/2) in blood serum and cerebrospinal fluid (CSF) of Alzheimer's Disease (AD) and Mild Cognitive Impairment (MCI) patients compared to cognitively healthy individuals, indicating LPSs as promising biomarkers, especially in serum. LPSs, in both fluids, positively correlate with COX-1/2, Αβ42 and tau and negatively with mental state. Furthermore, COX-2 is the main determinant of LPSs presence in serum, whereas COX-1 in CSF. These results underline the significance of microbial/ inflammatory involvement in dementia and offer novel perspectives on the roles of LPSs and COX in pathogenesis of AD.
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Affiliation(s)
- Eleni G Andreadou
- Laboratory of Biochemistry, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; Center for Interdisciplinary Research and Innovation, Laboratory of Neurodegenerative Diseases (LND), 57001 Thermi, Thessaloniki, Greece.
| | - Georgios Katsipis
- Laboratory of Biochemistry, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; Center for Interdisciplinary Research and Innovation, Laboratory of Neurodegenerative Diseases (LND), 57001 Thermi, Thessaloniki, Greece
| | - Magda Tsolaki
- First Neurology Department, "AHEPA" University General Hospital of Thessaloniki, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; Greek Association of Alzheimer's Disease and Related Disorders - GAADRD, Greece; Center for Interdisciplinary Research and Innovation, Laboratory of Neurodegenerative Diseases (LND), 57001 Thermi, Thessaloniki, Greece
| | - Anastasia A Pantazaki
- Laboratory of Biochemistry, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; Center for Interdisciplinary Research and Innovation, Laboratory of Neurodegenerative Diseases (LND), 57001 Thermi, Thessaloniki, Greece.
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15
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Barreiro-Iglesias A. Role of cyclooxygenases and prostaglandins in adult brain neurogenesis. Prostaglandins Other Lipid Mediat 2021; 152:106498. [PMID: 33035690 DOI: 10.1016/j.prostaglandins.2020.106498] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Revised: 08/20/2020] [Accepted: 10/01/2020] [Indexed: 02/06/2023]
Abstract
The telencephalon of adult mammals shows constitutive neurogenesis, and disease or traumatic injuries alter the rate of neurogenesis in the adult brain. Understanding the molecular signals that control adult brain neurogenesis is of crucial importance for the development of therapies to promote regeneration in the injured or diseased brain. Here, I reviewed our current knowledge on the role of cyclooxygenases and prostaglandins in controlling adult brain neurogenesis. Current data indicate that cyclooxygenase-2 derived prostaglandin E2 acting through EP receptors promotes neurogenesis in adult neurogenic niches of the telencephalon and that manipulations of this signalling pathway could be used to promote neurogenesis under pathological conditions. In this review article, I also propose new research directions to increase our knowledge on the role of this signalling pathway in neurogenesis.
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16
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Zhang C, He M, Ni L, He K, Su K, Deng Y, Li Y, Xia H. The Role of Arachidonic Acid Metabolism in Myocardial Ischemia-Reperfusion Injury. Cell Biochem Biophys 2020; 78:255-265. [PMID: 32623640 DOI: 10.1007/s12013-020-00928-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Accepted: 06/19/2020] [Indexed: 02/07/2023]
Abstract
Patients with myocardial ischemic diseases or who are undergoing one of various heart treatments, such as open heart surgery, coronary artery bypass grafting, percutaneous coronary artery intervention or drug thrombolysis, face myocardial ischemia-reperfusion injury (MIRI). However, no effective treatment is currently available for MIRI. To improve the prognosis of people with cardiovascular disease, it is important to research the mechanism of MIRI. Arachidonic acid (AA) is one of the focuses of current research. The various metabolic pathways of AA are closely related to the development of cardiovascular disease, and the roles of various metabolites in ischemia-reperfusion injury have gradually been confirmed. AA is mainly metabolized in the cyclooxygenase (COX) pathway, lipoxygenase (LOX) pathway, and cytochrome P450 monooxygenase (CYP) pathway. This paper summarizes the progress of research on these three major AA metabolic pathways with respect to MIRI.
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Affiliation(s)
- Changjiang Zhang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, 430060, PR China.,Cardiovascular Research Institute, Wuhan University, Wuhan, 430060, PR China.,Hubei Key Laboratory of Cardiology, Wuhan, 430060, PR China
| | - Meiling He
- Department of Medicine, Wuhan University, Wuhan, 420100, PR China
| | - Lihua Ni
- Department of Nephrology, Zhongnan Hospital of Wuhan University, Wuhan, 430071, PR China
| | - Ke He
- Department of Cardiology, The Central Hospital of Enshi Tujia and Miao Autonomous Prefecture, Enshi, 445000, PR China
| | - Ke Su
- Department of Cardiology, The Central Hospital of Enshi Tujia and Miao Autonomous Prefecture, Enshi, 445000, PR China
| | - Yinzhi Deng
- Department of Digestive Medicine, The Central Hospital of Enshi Tujia and Miao Autonomous Prefecture, Enshi, 445000, PR China.
| | - Yuanhong Li
- Department of Cardiology, The Central Hospital of Enshi Tujia and Miao Autonomous Prefecture, Enshi, 445000, PR China.
| | - Hao Xia
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, 430060, PR China. .,Cardiovascular Research Institute, Wuhan University, Wuhan, 430060, PR China. .,Institute of Cardiovascular Diseases, Wuhan University, Wuhan, 430060, PR China.
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Vorsprach M, Arens C, Knipping S, Jechorek D, Stegemann-Koniszewski S, Lücke E, Schreiber J. Expression of COX-1, COX-2, 5-LOX and CysLT 2 in nasal polyps and bronchial tissue of patients with aspirin exacerbated airway disease. Allergy Asthma Clin Immunol 2019; 15:83. [PMID: 31889962 PMCID: PMC6933683 DOI: 10.1186/s13223-019-0395-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Accepted: 12/10/2019] [Indexed: 11/10/2022] Open
Abstract
Background Aspirin exacerbated respiratory disease (AERD) is a disease of the upper and lower airways. It is characterized by severe asthma, chronic sinusitis with nasal polyps (CRSwNP) and intolerance towards nonsteroidal analgesics (NSAR). Arachidonic acid (AA) metabolites play an important role in the pathogenesis of AERD. It is still unknown, whether metabolism of AA is comparable between the upper and lower airways as well as between patients with and without NSAR intolerance. Objective We sought to analyze differences in the expression of cyclooxygenases type 1 and 2 (COX-1, COX-2), arachidonate 5-lipoxygenase (5-LOX) and cysteinyl leukotriene receptor type 2 ( CysLT 2 ) in nasal polyps and the bronchial mucosa of patients with aspirin intolerant asthma (AIA, n = 23 ) as compared to patients with aspirin tolerant asthma (ATA, n = 17 ) and a control group with nasal polyps, but without asthma (NPwA, n = 15 ). Methods Tissue biopsies from nasal polyps and bronchial mucosa were obtained during surgical treatment of nasal polyps by endonasal functional endoscopic sinus surgery (FESS) under general anesthesia from intubated patients. Immunohistochemistry was used to analyze the expression of COX-1, COX-2, 5-LOX and CysLT 2 in nasal and bronchial mucosa. Categorization into the different patient groups was performed according to the patient history, clinical and laboratory data, pulmonary function and provocation tests, as well as allergy testing. Results We observed a stronger expression of 5-LOX and CysLT 2 in submucosal glands of nasal and bronchial tissue compared to epithelial expression. The expression of COX-1 and COX-2 was stronger in epithelia compared to submucosal glands. There was a similar expression of the enzymes and CysLT 2 between upper and lower airways in all patient groups. We did not detect any significant differences between the patient groups. Conclusions The AA-metabolizing enzymes and the CysLT 2 were expressed in a very similar way in different microscopic structures in samples of the upper and lower airways of individual patients. We did not detect differences between the patient groups indicating the pathogenetic role of AA metabolism in these disorders is independent of the presence of NSAR-intolerance.
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Affiliation(s)
- Monique Vorsprach
- 1Departmemt of Pneumology, University Hospital Magdeburg, Medical Faculty, Otto-von-Guericke-University, Leipziger Straße 44, 39120 Magdeburg, Germany
| | - Christoph Arens
- 2Department of Otorhinolaryngology, Head- and Neck Surgery, University Hospital Magdeburg, Medical Faculty, Otto-von-Guericke-University, Leipziger Straße 44, 39120 Magdeburg, Germany
| | - Stephan Knipping
- 3Department of Otorhinolaryngology, Head- and Neck Surgery, Plastical Surgery, Dessau Medical Center, Martin-Luther-University Halle, Auenweg 38, 06847 Dessau, Germany
| | - Dörte Jechorek
- 4Department of Pathology, University Hospital Magdeburg, Medical Faculty, Otto-von-Guericke-University, Leipziger Straße 44, 39120 Magdeburg, Germany
| | - Sabine Stegemann-Koniszewski
- 1Departmemt of Pneumology, University Hospital Magdeburg, Medical Faculty, Otto-von-Guericke-University, Leipziger Straße 44, 39120 Magdeburg, Germany
| | - Eva Lücke
- 1Departmemt of Pneumology, University Hospital Magdeburg, Medical Faculty, Otto-von-Guericke-University, Leipziger Straße 44, 39120 Magdeburg, Germany
| | - Jens Schreiber
- 1Departmemt of Pneumology, University Hospital Magdeburg, Medical Faculty, Otto-von-Guericke-University, Leipziger Straße 44, 39120 Magdeburg, Germany
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Abstract
Background Isoxazole is an important pharmacophore in medicinal chemistry with a wide range of pharmacological activities. The present study deals with the synthesis and evaluation of antinociceptive potential of nine novel 3-substituted-isoxazole-4-carboxamide derivatives. Synthesis In the first step, respective oxime was prepared and further treated with ethylacetoacetate and anhydrous zinc chloride followed by hydrolysis of ester to furnish 3-substituted isoxazole-4-carboxylic acid. The respective carboxylic acids were converted to acid chlorides and condensed with aromatic amines to get the target carboxamide derivatives (A1–A5 and B1–B5). These compounds were characterized by FTIR, 1HNMR, 13CNMR and elemental analysis data and screened for their analgesic activity using acetic acid-induced writhing assay and hot plat test in mice and compared with the
standard centrally acting analgesic, tramadol. Results All the synthesized carboxamide derivatives showed low to moderate analgesic activity. Among the synthesized derivatives B2 having methoxy (OCH3) showed high analgesic activity as compared to tramadol both in acetic acid-induced writhing assay and hot plate assay at dose of 6 mg/kg. To examine the involvement of opioidergic mechanism in the mediation of analgesic effects of isoxazole derivatives animals were further treated with non-selective opioid analgesic, naloxone (0.5 mg/kg). The results showed that compounds A3 and B2 follow a non-opioid receptor pathway in the mediation of analgesic effects. Synthesized compounds A3 and B2 were docked against non-opioid receptors COX-1 (3N8X), COX-2 (1PXX) and human capsaicin receptor (HCR, 3J9J) to analyze their binding interactions. They showed binding energies in the range of − 7.5 to − 9.7 kcal/mol. Conclusions The results indicated that isoxazole carboxamide derivatives possess moderate analgesic potential especially compounds A3 and B2 can be considered as lead molecules and explored further for pain management with fewer side effects.
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Affiliation(s)
- Hajira Bibi
- 1Department of Pharmaceutical Chemistry, Riphah Institute of Pharmaceutical Science, Riphah International University, Islamabad, Pakistan
| | - Humaira Nadeem
- 1Department of Pharmaceutical Chemistry, Riphah Institute of Pharmaceutical Science, Riphah International University, Islamabad, Pakistan
| | - Muzaffar Abbas
- 2Department of Pharmacology, Riphah Institute of Pharmaceutical Science, Riphah International University, Islamabad, Pakistan
| | - Muazzam Arif
- 1Department of Pharmaceutical Chemistry, Riphah Institute of Pharmaceutical Science, Riphah International University, Islamabad, Pakistan
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Borges A, Casoti R, E Silva MLA, da Cunha NL, da Rocha Pissurno AP, Kawano DF, da Silva de Laurentiz R. COX Inhibition Profiles and Molecular Docking Studies of the Lignan Hinokinin and Some Synthetic Derivatives. Mol Inform 2018; 37:e1800037. [PMID: 30066986 DOI: 10.1002/minf.201800037] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [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: 03/29/2018] [Accepted: 07/03/2018] [Indexed: 11/08/2022]
Abstract
Encouraged by the anti-inflammatory activity of hinokinin in vivo, which is also observed for the analogues dinitrohinokinin and diidrocubebin, herein we used in vitro and in silico methods to assess their selectivity profiles and predict their binding modes with Cyclooxygenases (COX-1 and 2). The in vitro assays demonstrated dinitrohinokinin is about 13 times more selective for COX-2 than for COX-1, a similar profile observed for the drugs celecoxib (selective index ≈9) and meloxicam (selective index ≈11). Predictions of the binding modes suggested dinitrohinokinin interacts with COX-2 very similarly to rofecoxib, exploring residues at the hydrophilic pocket of the enzyme that accessible to ligands only in this isoform. This lignan also interacts with COX-1 in a similar mode to meloxicam, blocking the access of the substrate to the catalytic cleft. Therefore, dinitrohinokinin is a promising lead for the design of selective COX-2 inhibitors.
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Affiliation(s)
- Alexandre Borges
- Faculty of Pharmaceutical Sciences, University of Campinas - UNICAMP, Rua Cândido Portinari 200, 13083-871, Campinas-SP, Brazil
| | - Rosana Casoti
- Laboratory of Pharmacognosy, Faculty of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo - USP, Avenida do Café s/n, 14040-020, Ribeirão Preto-SP, Brazil
| | - Marcio Luis Andrade E Silva
- Nucleus of Research in Exact and Technological Sciences, University of Franca - UNIFRAN, Avenida Dr. Armando de Sáles Oliveira 201, 14404-600, Franca-SP, Brazil
| | - Nayane Larissa da Cunha
- Nucleus of Research in Exact and Technological Sciences, University of Franca - UNIFRAN, Avenida Dr. Armando de Sáles Oliveira 201, 14404-600, Franca-SP, Brazil
| | - Ana Paula da Rocha Pissurno
- Laboratory of Natural Products and Organic Synthesis of the Faculty of Engineering, São Paulo State University "Julio de Mesquita Filho" - UNESP, Avenida Brasil 56, 15385-000, Ilha Solteira-SP, Brazil
| | - Daniel Fábio Kawano
- Faculty of Pharmaceutical Sciences, University of Campinas - UNICAMP, Rua Cândido Portinari 200, 13083-871, Campinas-SP, Brazil
| | - Rosangela da Silva de Laurentiz
- Laboratory of Natural Products and Organic Synthesis of the Faculty of Engineering, São Paulo State University "Julio de Mesquita Filho" - UNESP, Avenida Brasil 56, 15385-000, Ilha Solteira-SP, Brazil
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Dave M, Islam ABMMK, Jensen RV, Rostagno A, Ghiso J, Amin AR. Proteomic Analysis Shows Constitutive Secretion of MIF and p53-associated Activity of COX-2 -/- Lung Fibroblasts. Genomics Proteomics Bioinformatics 2017; 15:339-351. [PMID: 29247872 PMCID: PMC5828655 DOI: 10.1016/j.gpb.2017.03.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Revised: 02/17/2017] [Accepted: 03/07/2017] [Indexed: 12/22/2022]
Abstract
The differential expression of two closelyassociated cyclooxygenase isozymes, COX-1 and COX-2, exhibited functions beyond eicosanoid metabolism. We hypothesized that COX-1 or COX-2 knockout lung fibroblasts may display altered protein profiles which may allow us to further differentiate the functional roles of these isozymes at the molecular level. Proteomic analysis shows constitutive production of macrophage migration inhibitory factor (MIF) in lung fibroblasts derived from COX-2−/− but not wild-type (WT) or COX-1−/− mice. MIF was spontaneously released in high levels into the extracellular milieu of COX2−/− fibroblasts seemingly from the preformed intracellular stores, with no change in the basal gene expression of MIF. The secretion and regulation of MIF in COX-2−/− was “prostaglandin-independent.” GO analysis showed that concurrent with upregulation of MIF, there is a significant surge in expression of genes related to fibroblast growth, FK506 binding proteins, and isomerase activity in COX-2−/− cells. Furthermore, COX-2−/− fibroblasts also exhibit a significant increase in transcriptional activity of various regulators, antagonists, and co-modulators of p53, as well as in the expression of oncogenes and related transcripts. Integrative Oncogenomics Cancer Browser (IntroGen) analysis shows downregulation of COX-2 and amplification of MIF and/or p53 activity during development of glioblastomas, ependymoma, and colon adenomas. These data indicate the functional role of the MIF-COX-p53 axis in inflammation and cancer at the genomic and proteomic levels in COX-2-ablated cells. This systematic analysis not only shows the proinflammatory state but also unveils a molecular signature of a pro-oncogenic state of COX-1 in COX-2 ablated cells.
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Affiliation(s)
- Mandar Dave
- Department of Rheumatology, New York University Hospital for Joint Diseases, New York, NY 10003, USA; Department of Science, STEM Division, Union County College, Cranford, NJ 07016, USA
| | - Abul B M M K Islam
- Department of Genetic Engineering and Biotechnology, University of Dhaka, Dhaka 1000, Bangladesh
| | - Roderick V Jensen
- Department of Biological Sciences, College of Science, Virginia Tech, Blacksburg, VA 24060, USA
| | - Agueda Rostagno
- Departments of Pathology, New York University School of Medicine, New York, NY 10003, USA
| | - Jorge Ghiso
- Departments of Pathology, New York University School of Medicine, New York, NY 10003, USA
| | - Ashok R Amin
- Department of Rheumatology, New York University Hospital for Joint Diseases, New York, NY 10003, USA; Departments of Pathology, New York University School of Medicine, New York, NY 10003, USA; Department of Bio-Medical Engineering, Virginia Tech, Blacksburg, VA 24060, USA; RheuMatric Inc., Blacksburg, VA 24061, USA.
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Abstract
Nonsteroidal antiinflammatory drugs (NSAIDs) and acetaminophen are used in young infants and newborns for pain and fever control, patent ductus closure, prevention of intraventricular hemorrhage, and potentially for prevention of retinopathy of prematurity. These drugs inhibit cyclooxygenase 1 (COX-1), COX-2, and peroxidases, thus, blocking prostaglandin (PG) synthesis. PGs are eicosanoids that regulate several physiologic, pathologic, and cellular processes, including vasomotor tone, platelet aggregation, sensitization of neurons to pain, and many molecular events critical to physiologic homeostasis. NSAIDs inhibit caspases and cell death. Increasing knowledge of these molecular entities may allow targeted drug development to prevent or minimize neonatal morbidities.
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Affiliation(s)
- Jacob V Aranda
- State University of New York Downstate Medical Center, 450 Clarkson Avenue, Box 49, Brooklyn, NY 11203, USA.
| | - Fabrizio Salomone
- Neonatology and Pulmonary Rare Disease Unit, Corporate Pre-Clinical R and D, Chiesi Farmaceutici S.p.A, Largo Belloli 11/A, Parma IT-43122, Italy
| | - Gloria B Valencia
- State University of New York Downstate Medical Center, 450 Clarkson Avenue, Box 49, Brooklyn, NY 11203, USA
| | - Kay D Beharry
- State University of New York Downstate Medical Center, 450 Clarkson Avenue, Box 49, Brooklyn, NY 11203, USA
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Zhang Y, Igwe OJ. Lipopolysaccharide (LPS)-mediated priming of toll-like receptor 4 enhances oxidant-induced prostaglandin E 2 biosynthesis in primary murine macrophages. Int Immunopharmacol 2018; 54:226-37. [PMID: 29161659 DOI: 10.1016/j.intimp.2017.11.017] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Revised: 11/13/2017] [Accepted: 11/14/2017] [Indexed: 12/17/2022]
Abstract
Agonists and pseudo-agonists for toll-like receptor 4 (TLR4) are common in our environment. Thus, human exposure to these agents may result in "priming or sensitization" of TLR4. A body of evidence suggests that LPS-mediated sensitization of TLR4 can increase the magnitude of responses to exogenous agents in multiple tissues. We have previously shown that reactive oxygen and nitrogen species (RONS) stimulate TLR4. There is no evidence that LPS-primed TLR4 can influence the magnitude of responses to oxidants from either endogenous or exogenous sources. In the present study, we directly tested the hypothesis that LPS-primed TLR4 will sensitize primary murine peritoneal macrophages (pM) to oxidant-mediated prostaglandin E2 (PGE2) production. We used potassium peroxychromate (PPC) and potassium peroxynitrite (PPN) as direct in vitro sources of exogenous RONS. Our results showed that a direct treatment with PPC or PPN alone as sources of exogenous oxidants had a limited effect on PGE2 biosynthesis. In contrast, pM sensitized by prior incubation with LPS-EK, a TLR4-specific agonist, followed by oxidant stimulation exhibited increased transcriptional and translational expression of cyclooxygenase-2 (COX-2) with enhanced PGE2 biosynthesis/production only in pM derived from TLR4-WT mice but not in TLR4-KO mice. Thus, we have shown a critical role for LPS-primed TLR4 in oxidant-induced inflammatory phenotypes that have the potential to initiate, propagate and maintain many human diseases.
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Basu S, Kadiiska MB. Ozone exposure effect on systemic prostaglandin F 2α in rat plasma and urine may not reveal pulmonary damage through inflammation. Prostaglandins Leukot Essent Fatty Acids 2017; 126:79-83. [PMID: 29031399 PMCID: PMC5859568 DOI: 10.1016/j.plefa.2017.09.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Revised: 09/11/2017] [Accepted: 09/11/2017] [Indexed: 12/21/2022]
Abstract
The acute ozone induced lung injury model has been widely used to explore injury and repair processes induced by oxidant overload. The current study evaluated acute ozone exposure effects on prostaglandin F2α (PGF2α) in male Fischer rat plasma and urine with the hypothesis that ozone may induce an inflammatory response in the body that can be measured by the induction of PGF2α. That might then lead to the identification of potential marker for acute lung injury through systemic inflammation. The time and dose-dependent effects of ozone exposure on the plasma and urinary levels of a major PGF2α metabolite15-keto-dihydro-PGF2α were determined using a radioimmunoassay. No statistically significant differences in the PGF2α metabolite were found between the control and the experimental groups at either ozone exposure dose (2ppm and 5ppm) or any time point (2h, 7h and 16h) post exposure for plasma and at 7 different post exposure time points (between 2 and 80h) for urine. It is concluded that acute ozone exposure does not cause changes in plasma and urinary PGF2α, and therefore their measurement in plasma and urine may not be used to reveal pulmonary inflammation and damage by ozone.
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Affiliation(s)
- Samar Basu
- Faculty of Medicine, Uppsala University, 751 85 Uppsala, Sweden; Department of Biochemistry, Molecular Biology and Nutrition, Faculty of Pharmacy, Université Clermont Auvergne, BP 10448, F-63000 Clermont-Ferrand, France.
| | - Maria B Kadiiska
- Immunity, Inflammation and Disease Laboratory, National Institutes of Health, National Institute of Environmental Health Sciences, Research Triangle Park, NC 27709, USA
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Jin J, Tang Q, Li Z, Zhao Z, Zhang Z, Lu L, Zhu T, Vanhoutte PM, Leung SW, Tu R, Shi Y. Prostaglandin E 2 regulates renal function in C57/BL6 mouse with 5/6 nephrectomy. Life Sci 2017; 174:68-76. [PMID: 28263803 DOI: 10.1016/j.lfs.2017.03.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Revised: 02/27/2017] [Accepted: 03/01/2017] [Indexed: 12/26/2022]
Abstract
AIMS To investigate the roles of cyclooxygenases (COX) and their metabolites in C57/BL6 mice with 5/6 nephrectomy, an animal model of chronic renal failure. MAIN METHODS C57/BL6 mice were grouped into sham-operated (2K), one kidney removal (1K) and 5/6 nephrectomy groups (5/6Nx). Renal resistive index was measured by ultrasonography. Blood, aortae, renal arteries and renal cortex were collected for measurement of kidney function, assessment of vascular responsiveness, Western blotting, immuohistochemistry and enzyme-linked immunosorbent assays. KEY FINDINGS After four weeks, acetylcholine-induced relaxations were blunted in renal arteries of 1K and 5/6Nx mice; indomethacin, a non-selective COX inhibitor, improved the response in 5/6Nx, but not in 1K renal arteries. In 5/6Nx renal arteries, but not in 1K preparations, the protein presence of endothelial nitric oxide synthase (eNOS) was decreased, while that of COX-2 and its products [prostacyclin and thromboxane A2] were increased. The renal resistive index was lower in 5/6Nx mice, suggesting a lower resistance in the renal microvasculature. In the renal cortex of 5/6Nx mice, eNOS protein presence was increased; while the presence of COX-2 was not detectable. The prostaglandin E2 level was lower in the 5/6Nx cortex than in the other two groups. SIGNIFICANCE The early stage of renal mass removal is associated with increased renal arterial constriction and reduced microvascular resistance. The former is due to downregulation of eNOS and upregulation of COX-2, leading to an increased production of prostacyclin and thromboxane A2. A reduced production of PGE2 in the renal cortex is important for maintaining normal renal function.
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Affiliation(s)
- J Jin
- Biomedical Research Centre, Zhongshan Hospital, Fudan University, China
| | - Q Tang
- Department of Urology, Zhongshan Hospital, Fudan University, China; Shanghai Key Laboratory of Organ Transplantation, China
| | - Z Li
- Biomedical Research Centre, Zhongshan Hospital, Fudan University, China
| | - Z Zhao
- Department of Pathology, Faculty of Medicine, Fudan University, China
| | - Z Zhang
- Department of Pathology, Faculty of Medicine, Fudan University, China
| | - L Lu
- Department of Physiology and Pathophysiology, Faculty of Medicine, Fudan University, China
| | - T Zhu
- Department of Urology, Zhongshan Hospital, Fudan University, China; Shanghai Key Laboratory of Organ Transplantation, China
| | - P M Vanhoutte
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Pharmacology and Pharmacy, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong
| | - S W Leung
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Pharmacology and Pharmacy, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong
| | - R Tu
- Department of Obstetrics and Gynecology, Zhongshan Hospital, Fudan University, China.
| | - Y Shi
- Biomedical Research Centre, Zhongshan Hospital, Fudan University, China; Shanghai Key Laboratory of Organ Transplantation, China.
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Pandurangan K, Krishnappan V, Subramanian V, Subramanyan R. Anti-inflammatory effect of certain dimethoxy flavones. Inflammopharmacology 2015; 23:307-17. [PMID: 26248971 DOI: 10.1007/s10787-015-0242-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2015] [Accepted: 06/29/2015] [Indexed: 12/01/2022]
Abstract
OBJECTIVE The aim of the present study was to evaluate the anti-inflammatory effect of four dimethoxy flavone derivatives; 7,2'-dimethoxy flavone, 7,3'-dimethoxy flavone, 7,4'-dimethoxy flavone and 7,8,-dimethoxy flavone and to investigate the possible cellular mechanisms involved. MATERIALS AND METHODS The acute anti-inflammatory effect of dimethoxy flavones was investigated by carrageenan induced hind paw oedema in rats. Further, the effect of dimethoxy flavones on certain mediators of pain and inflammation like cyclooxygenases (COX-1 and COX-2), pro-inflammatory cytokines (IL-1β and TNF-α) and free radical scavenging activity (NO and LPO) were investigated by using in vitro tests. RESULTS The investigated dimethoxy flavones produced a significant, dose and time dependent reduction of carrageenan induced paw oedema in rats with a maximum inhibition of 52.4% observed for 7,4'-dimethoxy flavone. Although, the test compounds inhibited both the isoforms of cyclooxygenase, a higher degree of inhibition on COX-2 was evident. A concentration dependent inhibition of other inflammatory cytokines like tumor necrosis factor-α and interleukin-1β was identified in the present study. 7,4'-dimethoxy flavone was found to be maximally effective in inhibiting nitrite ion free radical generation and 7,8-dimethoxy flavone was more active in inhibiting lipid peroxidation than the other compounds. CONCLUSION The results of the present study reveal the anti-inflammatory action of the investigated dimethoxy flavones. Inhibition of cyclooxygenases, cytokines and reactive oxygen species, observed in subsequent experiments may be suggested as possible mechanisms involved in the action of these compounds.
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Affiliation(s)
- Kamalakannan Pandurangan
- Department of Pharmacology, Meenakshi Medical College and Research Institute, Meenakshi Academy of Higher Education and Research, Kanchipuram, 631 552, India.
| | | | - Viswanathan Subramanian
- Department of Pharmacology, Meenakshi Medical College and Research Institute, Meenakshi Academy of Higher Education and Research, Kanchipuram, 631 552, India
| | - Ramaswamy Subramanyan
- Department of Pharmacology, Sri Lakshminarayana Institute of Medical Sciences, Pondicherry, 605 502, India
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Kamatham S, Kumar N, Gudipalli P. Isolation and characterization of gallic acid and methyl gallate from the seed coats of Givotia rottleriformis Griff. and their anti-proliferative effect on human epidermoid carcinoma A431 cells. Toxicol Rep 2015; 2:520-529. [PMID: 28962387 PMCID: PMC5598244 DOI: 10.1016/j.toxrep.2015.03.001] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [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: 12/03/2014] [Revised: 03/06/2015] [Accepted: 03/06/2015] [Indexed: 12/09/2022] Open
Abstract
We isolated gallic acid (GA) and methyl gallate (MG) from the seed coats of G. rottleriformis. We investigated the effect of purified GA and MG on A431 skin cancer cell proliferation in a dose and time dependent manner. We analyzed the apoptosis enhancer/suppressor regulatory marker proteins in GA/MG treated A431 cells in a dose or time dependent manner. We found that GA/MG is an effective natural molecule to avoid the risk of skin cancers.
Gallic acid (GA) and its derivative methyl gallate (MG) are well studied plant phenolics. They have exhibited anticancer effects in several cancer cell lines. However, the presence of GA/MG in the seed coats of Givotia rottleriformis and their inhibitory effect on human epidermoid carcinoma (A431) skin cancer cells were not reported. In this study we have isolated and chemically characterized the bioactive compounds GA and MG from the bioassay guided methanolic (MeOH) seed coat extracts of G. rottleriformis. The fractions obtained from open silica column chromatography were subjected to in vitro enzymatic assays. Among seven fractions we found that only fractions 5 and 6 showed significant inhibition activity toward COX-1 with an IC50 value of 28 μg/mL and 9.3 μg/mL and COX-2 with an IC50 value of 35 μg/mL and 7.0 μg/mL respectively. However, we could not find 5-LOX enzyme inhibition activity. MG (10 mg/g DW) and GA (6 mg/g DW) were the major compounds of seed coats. Cell viability was analyzed by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) assay, which showed that GA/MG significantly reduced the growth of A431 cells with an IC50 value of 25 μg/mL and 53 μg/mL and 11 μg/mL and 43 μg/mL at 24 h and 48 h, respectively. However the cytotoxic effect of GA/MG on HaCaT normal skin keratinocyte cell line was found to be less. Western blot analysis has shown that GA/MG treatment down regulated Bcl-2 and up regulated cleaved caspase-3 with respect to increasing doses. Our results conclude that GA and MG have potential anticancer effects and can be used as therapeutic agents for skin cancers.
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Affiliation(s)
- Samuel Kamatham
- Department of Biochemistry, School of Life Sciences, University of Hyderabad, Hyderabad, Telangana, India
| | - Naresh Kumar
- Department of Animal Biology, School of Life Sciences, University of Hyderabad, Hyderabad, Telangana, India
| | - Padmaja Gudipalli
- Department of Plant Sciences, School of Life Sciences, University of Hyderabad, Hyderabad, Telangana, India
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Cortes-Ciriano I, Murrell DS, van Westen GJ, Bender A, Malliavin TE. Prediction of the potency of mammalian cyclooxygenase inhibitors with ensemble proteochemometric modeling. J Cheminform 2015; 7:1. [PMID: 25705261 PMCID: PMC4335128 DOI: 10.1186/s13321-014-0049-z] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [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: 08/01/2014] [Accepted: 11/21/2014] [Indexed: 12/16/2022] Open
Abstract
Cyclooxygenases (COX) are present in the body in two isoforms, namely: COX-1, constitutively expressed, and COX-2, induced in physiopathological conditions such as cancer or chronic inflammation. The inhibition of COX with non-steroideal anti-inflammatory drugs (NSAIDs) is the most widely used treatment for chronic inflammation despite the adverse effects associated to prolonged NSAIDs intake. Although selective COX-2 inhibition has been shown not to palliate all adverse effects (e.g. cardiotoxicity), there are still niche populations which can benefit from selective COX-2 inhibition. Thus, capitalizing on bioactivity data from both isoforms simultaneously would contribute to develop COX inhibitors with better safety profiles. We applied ensemble proteochemometric modeling (PCM) for the prediction of the potency of 3,228 distinct COX inhibitors on 11 mammalian cyclooxygenases. Ensemble PCM models ([Formula: see text], and RMSEtest = 0.71) outperformed models exclusively trained on compound ([Formula: see text], and RMSEtest = 1.09) or protein descriptors ([Formula: see text] and RMSEtest = 1.10) on the test set. Moreover, PCM predicted COX potency for 1,086 selective and non-selective COX inhibitors with [Formula: see text] and RMSEtest = 0.76. These values are in agreement with the maximum and minimum achievable [Formula: see text] and RMSEtest values of approximately 0.68 for both metrics. Confidence intervals for individual predictions were calculated from the standard deviation of the predictions from the individual models composing the ensembles. Finally, two substructure analysis pipelines singled out chemical substructures implicated in both potency and selectivity in agreement with the literature. Graphical AbstractPrediction of uncorrelated bioactivity profiles for mammalian COX inhibitors with Ensemble Proteochemometric Modeling.
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Affiliation(s)
- Isidro Cortes-Ciriano
- Département de Biologie Structurale et Chimie, Institut Pasteur, Unité de Bioinformatique Structurale; CNRS UMR 3825, 25, rue du Dr Roux, Paris, 75015 France
| | - Daniel S Murrell
- Centre for Molecular Science Informatics, Department of Chemistry, University of Cambridge, Cambridge, UK
| | - Gerard Jp van Westen
- European Molecular Biology Laboratory European Bioinformatics Institute Wellcome Trust Genome Campus, Hinxton, Cambridge, CB10 1SD UK
| | - Andreas Bender
- Centre for Molecular Science Informatics, Department of Chemistry, University of Cambridge, Cambridge, UK
| | - Thérèse E Malliavin
- Département de Biologie Structurale et Chimie, Institut Pasteur, Unité de Bioinformatique Structurale; CNRS UMR 3825, 25, rue du Dr Roux, Paris, 75015 France
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Capra V, Rovati GE, Mangano P, Buccellati C, Murphy RC, Sala A. Transcellular biosynthesis of eicosanoid lipid mediators. Biochim Biophys Acta Mol Cell Biol Lipids 2014; 1851:377-82. [PMID: 25218301 DOI: 10.1016/j.bbalip.2014.09.002] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2014] [Revised: 09/01/2014] [Accepted: 09/02/2014] [Indexed: 01/09/2023]
Abstract
The synthesis of oxygenated eicosanoids is the result of the coordinated action of several enzymatic activities, from phospholipase A2 that releases the polyunsaturated fatty acids from membrane phospholipids, to primary oxidative enzymes, such as cyclooxygenases and lipoxygenases, to isomerases, synthases and hydrolases that carry out the final synthesis of the biologically active metabolites. Cells possessing the entire enzymatic machinery have been studied as sources of bioactive eicosanoids, but early on evidence proved that biosynthetic intermediates, albeit unstable, could move from one cell type to another. The biosynthesis of bioactive compounds could therefore be the result of a coordinated effort by multiple cell types that has been named transcellular biosynthesis of the eicosanoids. In several cases cells not capable of carrying out the complete biosynthetic process, due to the lack of key enzymes, have been shown to efficiently contribute to the final production of prostaglandins, leukotrienes and lipoxins. We will review in vitro studies, complex functional models, and in vivo evidences of the transcellular biosynthesis of eicosanoids and the biological relevance of the metabolites resulting from this unique biosynthetic pathway. This article is part of a Special Issue entitled "Oxygenated metabolism of PUFA: analysis and biological relevance".
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Affiliation(s)
- Valérie Capra
- Department of Health Sciences, Università degli Studi di Milano, Milan, Italy
| | - G Enrico Rovati
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy
| | - Paolo Mangano
- Department of Experimental Medicine, Università degli Studi di Messina, Messina, Italy
| | - Carola Buccellati
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy
| | - Robert C Murphy
- Department of Pharmacology, University of Colorado at Denver, Denver, USA
| | - Angelo Sala
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy; IBIM, CNR, Palermo, Italy.
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Kang GJ, Han SC, Koh YS, Kang HK, Jeon YJ, Yoo ES. Diphlorethohydroxycarmalol, Isolated from Ishige okamurae, Increases Prostaglandin E2 through the Expression of Cyclooxygenase-1 and -2 in HaCaT Human Keratinocytes. Biomol Ther (Seoul) 2013; 20:520-5. [PMID: 24009844 PMCID: PMC3762294 DOI: 10.4062/biomolther.2012.20.6.520] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [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: 09/18/2012] [Revised: 10/24/2012] [Accepted: 10/25/2012] [Indexed: 02/02/2023] Open
Abstract
Prostaglandin (PG) E2, the most abundant prostaglandin in the human body, is synthesized from arachidonic acid via the actions of cyclooxygenase (COX) enzymes. PGE2 exerts homeostatic, cytoprotective, inflammatory, and in some cases anti-inflammatory effects. Also, it has been reported that PGE2 is involved in hair growth. Diphlorethohydroxycarmalol (DPHC) is a phlorotannin compound isolated from the brown algae Ishige okamurae, with various biological activities in vitro and in vivo. In this study, the biological effect and mechanism of action of DPHC on prostaglandin synthesis in HaCaT human keratinocytes was examined. The results showed that, in these cells, DPHC significantly and dose-dependently induced PGE2 synthesis by increasing the protein and mRNA levels of COX-1 and COX-2. Interestingly, DPHC-induced COX-1 expression preceded that of COX-2. Also, while both rofecoxib and indomethacin inhibited PGE2 production, the latter was seems to be the more potent. From above results, we can expect that DPHC has some beneficial effects via increasing of PGE2 production.
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Affiliation(s)
- Gyeoung-Jin Kang
- Departments of Pharmacology, School of Medicine, Jeju National University, Jeju 690-756, Republic of Korea
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Eilati E, Hales K, Zhuge Y, Fricano KA, Yu R, van Breemen RB, Hales DB. Flaxseed enriched diet-mediated reduction in ovarian cancer severity is correlated to the reduction of prostaglandin E(2) in laying hen ovaries. Prostaglandins Leukot Essent Fatty Acids 2013; 89:179-87. [PMID: 23978451 PMCID: PMC3811136 DOI: 10.1016/j.plefa.2013.08.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2013] [Revised: 07/31/2013] [Accepted: 08/02/2013] [Indexed: 12/31/2022]
Abstract
Prevention of ovarian cancer is the best approach for reducing the impact of this deadly disease. The laying hen is a robust model of spontaneous ovarian cancer that recapitulates the human disease. Dietary intervention with flaxseed, the richest vegetable source of omega-3 fatty acids (OM-3FAs) and phytoestrogen lignans, demonstrate the potential for effective prevention and amelioration of ovarian cancer by targeting inflammatory prostaglandin pathways. Prostaglandin E2 (PGE2) is the most pro-inflammatory ecoisanoid and one of the downstream products of two isoforms of cyclooxygenase (COX) enzymes: COX-1 and COX-2. Our objective was to investigate the effect of flaxseed supplementation for one year on ovarian cancer and correlate its effects to expression of COX enzymes and concentrations of prostaglandins. White Leghorn hens were fed 10% flaxseed-enriched or standard diet for one year. The severity of ovarian cancer was determined by gross pathology and histology. COX-1 and COX-2 localization and protein and mRNA expression and PGE2 and PGE3 concentrations in ovaries were measured by IHC, western blot, quantitative real-time PCR and LC-MS-MS, respectively. The results demonstrated a significant reduction in late stage ovarian tumors in the flaxseed-fed hens compared with the control diet-fed hens. In correlation with decreased ovarian cancer severity, concentrations of PGE2 and expression of COX-2 were diminished in ovaries of flaxseed-fed hens. PGE3 concentrations were below the level of detection. The results demonstrated that in normal ovaries, COX-1 was localized to the granulosa cell layer surrounding the follicles and ovarian surface epithelium (OSE) whereas COX-2 protein was localized to the granulosa cell layer in the follicle. Extensive COX-1 and COX-2 protein expression was found throughout the ovarian carcinoma. Our findings suggest that the flaxseed-mediated reduction in the severity of ovarian cancer in hens is correlated to the reduction in PGE2 in the ovaries of flaxseed-fed hens. These findings may provide the basis for clinical trials of dietary intervention targeting prostaglandin biosynthesis for the prevention and treatment of ovarian cancer.
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Affiliation(s)
- Erfan Eilati
- Department of Physiology, Southern Illinois University at Carbondale, School of Medicine, Carbondale, IL, USA
| | - Karen Hales
- Department of Physiology, Southern Illinois University at Carbondale, School of Medicine, Carbondale, IL, USA
| | - Yan Zhuge
- Department of Physiology and Biophysics, University of Illinois at Chicago, Chicago, IL, USA
| | | | - Rui Yu
- Department of Medicinal Chemistry and Pharmacognosy, University of Illinois at Chicago, Chicago, IL, USA
| | - Richard B. van Breemen
- Department of Medicinal Chemistry and Pharmacognosy, University of Illinois at Chicago, Chicago, IL, USA
| | - Dale Buchanan Hales
- Department of Physiology, Southern Illinois University at Carbondale, School of Medicine, Carbondale, IL, USA
- Corresponding author. Tel.: +1618 453 1544; fax: +1618 453 1517.
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