1
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Vo HHN, Phung THT, Chung KL, Vu TY. Precise cuts for tailoring chromene-phenyl COX inhibitors with Ligand Designer. J Mol Graph Model 2024; 129:108747. [PMID: 38447296 DOI: 10.1016/j.jmgm.2024.108747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 12/04/2023] [Accepted: 02/20/2024] [Indexed: 03/08/2024]
Abstract
Cyclooxygenases 1 and 2 (COX-1/2) are enzymes renowned for inducing inflammatory responses through the production of prostaglandins. Thus, the development of COX inhibitors has been a promising approach for identifying compounds with anti-inflammatory potential. In this study, we designed 27 new compounds (1-27) based on the structure of a previously known COX inhibitor, using the Ligand Designer tool. Our aim was to improve the affinity of the compounds with COX enzymes by inducing interactions with residue Arg120 while retaining the good π-π stacking interactions of the chromene-phenyl scaffold. Through screening based on ligand-binding free energy defined by molecular docking simulations and MM/GBSA technique, compounds 9 and 10 were identified as having the highest ability to inhibit COX proteins. The binding affinities of the two compounds with COX-1/2 were superior to those of the original NAI10 compound and the reference drug indomethacin. Our virtual screening suggests that compounds 9 and 10 have a strong ability to inhibit COX-1/2 and thus could be promising candidates for further anti-inflammatory drug studies. In essence, our study underscores the pivotal role of the N-aryl iminocoumarin scaffold in shaping the future landscape of novel anti-inflammatory drug development.
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Affiliation(s)
| | - Thu Huong Thi Phung
- NTT Hi-Tech Institute, Nguyen Tat Thanh University, Ho Chi Minh City, Viet Nam
| | - Khanh Linh Chung
- Faculty of Pharmacy, Ton Duc Thang University, Ho Chi Minh City, Viet Nam
| | - Thien Y Vu
- Faculty of Pharmacy, Ton Duc Thang University, Ho Chi Minh City, Viet Nam.
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2
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Somu P, Basavegowda N, Gomez LA, Jayaprakash HV, Puneetha GK, Yadav AK, Paul S, Baek KH. Crossroad between the Heat Shock Protein and Inflammation Pathway in Acquiring Drug Resistance: A Possible Target for Future Cancer Therapeutics. Biomedicines 2023; 11:2639. [PMID: 37893013 PMCID: PMC10604354 DOI: 10.3390/biomedicines11102639] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 09/23/2023] [Accepted: 09/25/2023] [Indexed: 10/29/2023] Open
Abstract
The development of multidrug resistance (MDR) against chemotherapeutic agents has become a major impediment in cancer therapy. Understanding the underlying mechanism behind MDR can guide future treatment for cancer with better therapeutic outcomes. Recent studies evidenced that crossroads interaction between the heat shock proteins (HSP) and inflammatory responses under the tumor microenvironment plays a pivotal role in modulating drug responsiveness and drug resistance through a complex cytological process. This review aims to investigate the interrelationship between inflammation and HSP in acquiring multiple drug resistance and investigate strategies to overcome the drug resistance to improve the efficacy of cancer treatment. HSP plays a dual regulatory effect as an immunosuppressive and immunostimulatory agent, involving the simultaneous blockade of multiple signaling pathways in acquiring MDR. For example, HSP27 shows biological effects on monocytes by causing IL10 and TNFα secretion and blocking monocyte differentiation to normal dendritic cells and tumor-associated macrophages to promote cancer progression and chemoresistance. Thus, the HSP function and immune-checkpoint release modalities provide a therapeutic target for a therapeutically beneficial approach for enhancing anti-tumor immune responses. The interconnection between inflammation and HSP, along with the tumor microenvironment in acquiring drug resistance, has become crucial for rationalizing the effect of HSP immunomodulatory activity with immune checkpoint blockade. This relationship can overcome drug resistance and assist in the development of novel combinatorial cancer immunotherapy in fighting cancer with decreasing mortality rates.
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Affiliation(s)
- Prathap Somu
- Department of Biotechnology and Chemical Engineering, School of Civil & Chemical Engineering, Manipal University Jaipur, Dehmi Kalan, Jaipur 303007, India;
| | - Nagaraj Basavegowda
- Department of Biotechnology, Yeungnam University, Gyeongsan 38451, Republic of Korea;
| | - Levin Anbu Gomez
- Department of Biotechnology, School of Agriculture and Bioscience, Karunya Institute of Technology and Sciences (Deemed-to-be University), Karunya Nagar, Coimbatore 641114, India;
| | | | | | - Akhilesh Kumar Yadav
- Department of Environmental Engineering and Management, Chaoyang University of Technology, Taichung 413310, Taiwan;
| | - Subhankar Paul
- Structural Biology and Nanomedicine Laboratory, Department of Biotechnology and Medical Engineering, National Institute of Technology, Rourkela 769008, India
| | - Kwang-Hyun Baek
- Department of Biotechnology, Yeungnam University, Gyeongsan 38451, Republic of Korea;
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3
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Rudrapal M, Eltayeb WA, Rakshit G, El-Arabey AA, Khan J, Aldosari SM, Alshehri B, Abdalla M. Dual synergistic inhibition of COX and LOX by potential chemicals from Indian daily spices investigated through detailed computational studies. Sci Rep 2023; 13:8656. [PMID: 37244921 PMCID: PMC10224994 DOI: 10.1038/s41598-023-35161-0] [Citation(s) in RCA: 34] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Accepted: 05/13/2023] [Indexed: 05/29/2023] Open
Abstract
Cyclooxygenase (COX) and Lipoxygenase (LOX) are essential enzymes for arachidonic acid (AA) to eicosanoids conversion. These AA-derived eicosanoids are essential for initiating immunological responses, causing inflammation, and resolving inflammation. Dual COX/5-LOX inhibitors are believed to be promising novel anti-inflammatory agents. They inhibit the synthesis of prostaglandins (PGs) and leukotrienes (LTs), but have no effect on lipoxin formation. This mechanism of combined inhibition circumvents certain limitations for selective COX-2 inhibitors and spares the gastrointestinal mucosa. Natural products, i.e. spice chemicals and herbs, offer an excellent opportunity for drug discovery. They have proven anti-inflammatory properties. However, the potential of a molecule to be a lead/ drug candidate can be much more enhanced if it has the property of inhibition in a dual mechanism. Synergistic activity is always a better option than the molecule's normal biological activity. Herein, we have explored the dual COX/5-LOX inhibition property of the three major potent phytoconsituents (curcumin, capsaicin, and gingerol) from Indian spices using in silico tools and biophysical techniques in a quest to identify their probable inhibitory role as anti-inflammatory agents. Results revealed the dual COX/5-LOX inhibitory potential of curcumin. Gingerol and capsaicin also revealed favorable results as dual COX/5-LOX inhibitors. Our results are substantiated by target similarity studies, molecular docking, molecular dynamics, energy calculations, DFT, and QSAR studies. In experimental inhibitory (in vitro) studies, curcumin exhibited the best dual inhibitory activities against COX-1/2 and 5-LOX enzymes. Capsaicin and gingerol also showed inhibitory potential against both COX and LOX enzymes. In view of the anti-inflammatory potential these spice chemicals, this research could pave the way for more scientific exploration in this area for drug discovery.
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Affiliation(s)
- Mithun Rudrapal
- Department of Pharmaceutical Sciences, School of Biotechnology and Pharmaceutical Sciences, Vignan's Foundation for Science, Technology & Research (Deemed to Be University), Guntur, 522213, India.
| | - Wafa Ali Eltayeb
- Biotechnology Department, Faculty of Science and Technology, Shendi University, Shendi, 414601, Sudan
| | - Gourav Rakshit
- Department of Pharmaceutical Sciences and Technology, Birla Institute of Technology, Ranchi, 835215, India
| | - Amr Ahmed El-Arabey
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Al-Azhar University, Cairo, 11651, Egypt
| | - Johra Khan
- Department of Medical Laboratory Sciences, College of Applied Medical Sciences, Majmaah University, Al'Majmaah, 11952, Saudi Arabia.
- Health and Basic Sciences Research Center, Majmaah University, Al'Majmaah, 11952, Saudi Arabia.
| | - Sahar M Aldosari
- Department of Medical Laboratory Sciences, College of Applied Medical Sciences, Majmaah University, Al'Majmaah, 11952, Saudi Arabia
- Health and Basic Sciences Research Center, Majmaah University, Al'Majmaah, 11952, Saudi Arabia
| | - Bader Alshehri
- Department of Medical Laboratory Sciences, College of Applied Medical Sciences, Majmaah University, Al'Majmaah, 11952, Saudi Arabia
- Health and Basic Sciences Research Center, Majmaah University, Al'Majmaah, 11952, Saudi Arabia
| | - Mohnad Abdalla
- Pediatric Research Institute, Children's Hospital Affiliated to Shandong University, Jinan, 250022, People's Republic of China.
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4
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Wang J, Xiang C, Cai Y, Mei Z, Lu Q, Liu B, Zou L. Clinicopathological and prognostic significance of COX-2 in glioma patients: a meta-analysis. ARQUIVOS DE NEURO-PSIQUIATRIA 2022; 80:1254-1261. [PMID: 36580964 PMCID: PMC9800163 DOI: 10.1055/s-0042-1758864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
BACKGROUND In recent years, cyclooxygenase-2 (COX-2) has been identified as a cancer stem cell (CSC) marker in gliomas. Nevertheless, the clinical and prognostic significance of COX-2 in glioma patients remains controversial. OBJECTIVE To evaluate the correlation of COX-2 with the prognosis in glioma patients. METHODS Eligible studies on this subject were included, and pooled odd ratios (ORs) and hazard ratios (HRs) with 95% confidence intervals (95%CIs) were estimated. Publication bias was assessed through funnel plots, and heterogeneity and sensitivity were analyzed as well. RESULTS In the present study, 11 articles with a total of 641 patients were included. The high expression of COX-2 in glioma patients was negatively associated with overall survival (OS) (n = 11; HR = 2.26; 95%CI = 1.79-2.86), and the subgroup analysis showed no differences in OS between Asian (n = 5; HR = 2.16; 95%CI = 1.57-2.97) and non-Asian (n = 6; HR = 2.39; 95%CI = 1.69-3.38) glioma patients. The Begg funnel plots test indicated that there was no evident risk of publication bias in the meta-analysis. CONCLUSION The present study suggests that COX-2 could be recommended as a useful pathological and prognostic biomarker in the clinical practice.
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Affiliation(s)
- Jun Wang
- China Three Gorges University, The People's Hospital, Yichang, Hubei Province, China.
| | - Chenyan Xiang
- China Three Gorges University, The People's Hospital, Yichang, Hubei Province, China.
| | - Yi Cai
- China Three Gorges University, College of Basic Medical Sciences, Hubei Key Laboratory of Tumor Microenvironment and Immunotherapy, Yichang, Hubei, China.,China Three Gorges University, College of Basic Medical Sciences, The Institute of Infection and Inflammation, Yichang, China.
| | - Ziyi Mei
- China Three Gorges University, College of Basic Medical Sciences, Hubei Key Laboratory of Tumor Microenvironment and Immunotherapy, Yichang, Hubei, China.,China Three Gorges University, College of Basic Medical Sciences, The Institute of Infection and Inflammation, Yichang, China.
| | - Qianqian Lu
- China Three Gorges University, College of Basic Medical Sciences, Hubei Key Laboratory of Tumor Microenvironment and Immunotherapy, Yichang, Hubei, China.,China Three Gorges University, College of Basic Medical Sciences, The Institute of Infection and Inflammation, Yichang, China.
| | - Binbin Liu
- China Three Gorges University, College of Basic Medical Sciences, Hubei Key Laboratory of Tumor Microenvironment and Immunotherapy, Yichang, Hubei, China.,China Three Gorges University, College of Basic Medical Sciences, The Institute of Infection and Inflammation, Yichang, China.
| | - Lili Zou
- China Three Gorges University, College of Basic Medical Sciences, Hubei Key Laboratory of Tumor Microenvironment and Immunotherapy, Yichang, Hubei, China.,China Three Gorges University, College of Basic Medical Sciences, The Institute of Infection and Inflammation, Yichang, China.,Address for correspondence Lili Zou
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5
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Fadel C, Łebkowska‐Wieruszewska B, Sartini I, Lisowski A, Poapolathep A, Giorgi M. Robenacoxib pharmacokinetics in sheep following oral, subcutaneous, and intravenous administration. J Vet Pharmacol Ther 2022; 45:550-557. [PMID: 35899473 PMCID: PMC9796919 DOI: 10.1111/jvp.13089] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 07/07/2022] [Accepted: 07/17/2022] [Indexed: 01/07/2023]
Abstract
The aim of this study was to evaluate the pharmacokinetics (PK) of robenacoxib (RX), a COX-2 selective non-steroidal anti-inflammatory drug, in sheep after single subcutaneous (SC), oral (PO), and intravenous (IV) administration. Five healthy female sheep underwent a three-phase parallel study design with a washout period of 4 weeks, in which sheep received a 4 mg/kg SC dose in phase 1, a 4 mg/kg PO administration in phase 2, and a 2 mg/kg IV administration in phase 3. Plasma RX concentrations were measured over a 48 h period for each treatment using HPLC coupled to a UV multiple wavelength detector, and the PK parameters were estimated using a non-compartmental method. Following IV administration, terminal elimination half-life, volume of distribution at steady state, and total clearance were 2.64 h, 0.077 L/kg, and 0.056 L/h kg, respectively. The mean peak plasma concentrations following SC and PO administrations were 7.04 and 3.01 μg/mL, respectively. The mean bioavailability following SC and PO administrations were 45.98% and 16.58%, respectively. The SC route may be proposed for use in sheep. However, the multi-dose and pharmacodynamic studies are necessary to establish more accurately its safety and efficacy in sheep.
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Affiliation(s)
- Charbel Fadel
- Department of Veterinary MedicineUniversity of SassariSassariItaly
| | | | - Irene Sartini
- Department of Veterinary SciencesUniversity of PisaPisaItaly
| | - Andrzej Lisowski
- Institute of Animal Breeding and Biodiversity ConservationUniversity of Life SciencesLublinPoland
| | - Amnart Poapolathep
- Faculty of Veterinary Medicine, Department of PharmacologyKasetsart UniversityBangkokThailand
| | - Mario Giorgi
- Department of Veterinary MedicineUniversity of SassariSassariItaly,Department of Veterinary SciencesUniversity of PisaPisaItaly
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6
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Abdellatif KR, Abdelall EK, Lamie PF, Labib MB, Abdelhakeem MM, Abdel-Fattah MM, El-Nahaas ES. Novel pyrazole-oxadiazole hybrids possessing methanesulphonyl pharmacophore with good gastric safety profile: Design, synthesis, cyclooxygenase inhibition, anti-inflammatory activity and histopathological studies. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133529] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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7
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Lees P, Toutain PL, Elliott J, Giraudel JM, Pelligand L, King JN. Pharmacology, safety, efficacy and clinical uses of the COX-2 inhibitor robenacoxib. J Vet Pharmacol Ther 2022; 45:325-351. [PMID: 35460083 PMCID: PMC9541287 DOI: 10.1111/jvp.13052] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 02/23/2022] [Accepted: 03/06/2022] [Indexed: 12/14/2022]
Abstract
Robenacoxib is a veterinary‐approved non‐steroidal anti‐inflammatory drug (NSAID) of the coxib group. It possesses anti‐hyperalgesic, anti‐inflammatory and anti‐pyretic properties. Robenacoxib inhibits the cyclooxygenase (COX)‐2 isoform of COX selectively (in vitro IC50 ratios COX‐1:COX‐2, 129:1 in dogs, 32:1 in cats). At registered dosages (2 mg/kg subcutaneously in dogs and cats, 1–4 mg/kg orally in dogs and 1–2.4 mg/kg orally in cats), robenacoxib produces significant inhibition of COX‐2 whilst sparing COX‐1. The pharmacokinetic (PK) profile of robenacoxib is characterized by a high degree of binding to plasma proteins (>98%) and moderate volume of distribution (at steady state, 240 ml/kg in dogs and 190 ml/kg in cats). In consequence, the terminal half‐life in blood (<2 h) is short, despite moderate body clearance (0.81 L/kg/h) in dogs and low clearance (0.44 L/kg/h) in cats. Excretion is principally in the bile (65% in dogs and 72% in cats). Robenacoxib concentrates in inflamed tissues, and clinical efficacy is achieved with once‐daily dosing, despite the short blood terminal half‐life. In dogs, no relevant breed differences in robenacoxib PK have been detected. Robenacoxib has a wide safety margin; in healthy laboratory animals daily oral doses 20‐fold (dog, 1 month), eight‐fold (cat, 6 weeks) and five‐fold (dog, 6 months) higher than recommended clinical doses were well tolerated. Clinical efficacy and safety have been demonstrated in orthopaedic and soft tissue surgery, and in musculoskeletal disorders in dogs and cats.
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Affiliation(s)
- Peter Lees
- Royal Veterinary College, University of London, London, UK
| | - Pierre-Louis Toutain
- Royal Veterinary College, University of London, London, UK.,INTHERES, INRA, ENVT, Université de Toulouse, Toulouse, France
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8
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Zhang TY, Li CS, Cao LT, Bai XQ, Zhao DH, Sun SM. New ursolic acid derivatives bearing 1,2,3-triazole moieties: design, synthesis and anti-inflammatory activity in vitro and in vivo. Mol Divers 2022; 26:1129-1139. [PMID: 34080112 DOI: 10.1007/s11030-021-10236-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Accepted: 05/22/2021] [Indexed: 10/21/2022]
Abstract
In order to discover novel anti-inflammatory agents, three series of compounds obtained by appending 1,2,3-triazole moieties on ursolic acid were designed and synthesized. All compounds have been screened for their anti-inflammatory activity by using an ear edema model. The potent anti-inflammatory compound was subjected to in vitro cyclooxygenase COX-1/COX-2 inhibition assays. In general, the derivatives were found to be potent anti-inflammatory activity. Especially, the compound 11b exhibited the strongest activity of all of the compounds prepared, with 82.81% inhibition after intraperitoneal administration, which was better than celecoxib as a positive control. Molecular docking results unclose the rationale for the interaction of the compound 11b with COX-2 enzyme. Further studies revealed that compound 11b exhibited effective COX-2 inhibitory activity, with half-maximal inhibitor concentration (IC50) value of 1.16 µM and selectivity index (SI = 64.66) value close to that of celecoxib (IC50 = 0.93 µM, SI = 65.47). Taken together, these results could suggest a promising chemotype for development of new COX-2-targeting anti-inflammatory agent.
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Affiliation(s)
- Tian-Yi Zhang
- Jilin Medical University, Jilin, 132013, Jilin Province, People's Republic of China
| | - Chun-Shi Li
- The Third People's Hospital of Dalian, Dalian, 116000, People's Republic of China
| | - Li-Ting Cao
- Jilin Medical University, Jilin, 132013, Jilin Province, People's Republic of China
| | - Xue-Qian Bai
- Jilin Medical University, Jilin, 132013, Jilin Province, People's Republic of China
| | - Dong-Hai Zhao
- Jilin Medical University, Jilin, 132013, Jilin Province, People's Republic of China.
| | - Si-Mei Sun
- Zhoushan Hospital, Zhejiang University School of Medicine, Zhoushan, 316021, Zhejiang Province, People's Republic of China.
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Prada L, D. Santos C, Baião RA, Costa J, Ferreira JJ, Caldeira D. Risk of SARS-CoV-2 Infection and COVID-19 Severity Associated With Exposure to Nonsteroidal Anti-Inflammatory Drugs: Systematic Review and Meta-Analysis. J Clin Pharmacol 2021; 61:1521-1533. [PMID: 34352112 PMCID: PMC8426976 DOI: 10.1002/jcph.1949] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2021] [Accepted: 08/02/2021] [Indexed: 12/04/2022]
Abstract
Nonsteroidal anti-inflammatory drugs (NSAIDs) were thought to increase the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) virus entrance into cells. Hence, it was suggested in the media that NSAIDs could lead to a higher risk of infection and/or disease severity. To determine the existence or absence of this association, we aimed to systematically evaluate the risk of SARS-CoV-2 infection and mortality and the risk of severe coronavirus disease 2019 (COVID-19) associated with previous exposure to NSAIDs. MEDLINE, Cochrane Central Register of Controlled Trials (CENTRAL), and EMBASE were searched in February 2021 for controlled studies. The results were calculated through random-effect meta-analyses and reported in terms of odds ratios (ORs) with 95% confidence intervals (CIs). Heterogeneity was assessed with I2 test. Eleven studies were included, comprising a total of 683 715 patients. NSAID exposure did not increase the risk of having a positive test for SARS-CoV-2 infection (OR, 0.97; 95%CI, 0.85-1.11, I2 = 24%; 5 studies). The exposure to NSAIDs did not increase the risk of severe/critical COVID-19 disease (OR, 0.92; 95%CI, 0.80-1.05; I2 = 0%; 5 studies) nor all-cause mortality among patients with COVID-19 (OR, 0.86; 95%CI, 0.75-0.99; I2 = 14%, 4 studies). Our data did not suggest that exposure to NSAIDs increases the risk of having SARS-CoV-2 infection or increases the severity of COVID-19 disease. Also, the fragility of the studies included precludes definite conclusions and highlights the need for further robust data.
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Affiliation(s)
- Luísa Prada
- Laboratory of Clinical Pharmacology and TherapeuticsFaculdade de MedicinaUniversidade de LisboaLisbonPortugal
| | - Catarina D. Santos
- Laboratory of Clinical Pharmacology and TherapeuticsFaculdade de MedicinaUniversidade de LisboaLisbonPortugal
| | - Rita A. Baião
- Laboratory of Clinical Pharmacology and TherapeuticsFaculdade de MedicinaUniversidade de LisboaLisbonPortugal
| | - João Costa
- Laboratory of Clinical Pharmacology and TherapeuticsFaculdade de MedicinaUniversidade de LisboaLisbonPortugal
- Instituto de Medicina MolecularFaculdade de MedicinaUniversidade de LisboaLisbonPortugal
| | - Joaquim J. Ferreira
- Laboratory of Clinical Pharmacology and TherapeuticsFaculdade de MedicinaUniversidade de LisboaLisbonPortugal
- Instituto de Medicina MolecularFaculdade de MedicinaUniversidade de LisboaLisbonPortugal
- CNS ‐ Campus Neurológico SéniorTorres VedrasLisbonPortugal
| | - Daniel Caldeira
- Laboratory of Clinical Pharmacology and TherapeuticsFaculdade de MedicinaUniversidade de LisboaLisbonPortugal
- Instituto de Medicina MolecularFaculdade de MedicinaUniversidade de LisboaLisbonPortugal
- Centro Cardiovascular da Universidade de Lisboa ‐ CCULCAML, Faculdade de MedicinaUniversidade de LisboaLisbonPortugal
- Serviço de CardiologiaHospital Universitário de Santa Maria – CHULNLisbonPortugal
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10
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Ho CL, Lin CS, Li LH, Hua KF, Ju TC. Inhibition of pro-inflammatory mediator expression in macrophages using wood vinegar from griffith's ash. CHINESE J PHYSIOL 2021; 64:232-243. [PMID: 34708715 DOI: 10.4103/cjp.cjp_54_21] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Macrophages are essential for host defense as they control foreign pathogens and induce acquired immune responses. Activated macrophages secrete pro-inflammatory reactive substances causing local cell and tissue inflammatory response, which helps an organism resist the invasion of foreign pathogens. Excessive or chronic inflammation can cause several diseases. Previous studies have reported that vinegar treatment decreases the levels of several inflammatory cytokines and biomarkers, including mitogen-activated protein kinases, cyclooxygenase-2, inducible nitric oxide synthase (iNOS), and nitric oxide (NO). However, the benefits of wood vinegar produced from Griffith's ash (Fraxinus formosana Hayata) in reducing inflammation have not been investigated yet. Thus, assuming that wood vinegar exerts anti-inflammatory effects in macrophages, in this study, we investigated the potential anti-inflammatory effects of the wood vinegar from Griffith's ash using a lipopolysaccharide (LPS)-induced inflammatory response model in RAW264.7 macrophages. We showed that the wood vinegar inhibited the production of iNOS, NO, and interleukin 6. In addition, we found that the wood vinegar reduced the phosphorylation levels of p38 and protein kinase C-α/δ in the LPS-stimulated RAW264.7 macrophages. Based on these results, we suggest that the produced wood vinegar can reduce inflammation in LPS-activated macrophages.
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Affiliation(s)
- Chen-Lung Ho
- Division of Wood Cellulose, Taiwan Forestry Research Institute, Taipei, Taiwan
| | - Chuan-Shun Lin
- Animal Technology Research Center, Agricultural Technology Research Institute, Hsinchu, Taiwan
| | - Lan-Hui Li
- Department of Laboratory Medicine, Linsen, Chinese Medicine and Kunming Branch, Taipei City Hospital; Department of Pathology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Kuo-Feng Hua
- Department of Biotechnology and Animal Science, National Ilan University, Yilan; Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan
| | - Tz-Chuen Ju
- Department of Animal Science and Biotechnology, Tunghai University, Taichung, Taiwan
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11
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Karasawa Y, Kamae I, Nozawa K, Zeniya S, Murata T, Soen S, Sakamoto C. Cost-effectiveness analysis of branded and authorized generic celecoxib for patients with chronic pain in Japan. PLoS One 2021; 16:e0253547. [PMID: 34228745 PMCID: PMC8259992 DOI: 10.1371/journal.pone.0253547] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Accepted: 06/07/2021] [Indexed: 12/03/2022] Open
Abstract
Objectives The aim of this study was to examine the cost-effectiveness of branded and authorized generic (AG) celecoxib for chronic pain patients with osteoarthritis (OA), rheumatoid arthritis (RA), and low back pain (LBP), using real-world cost information for loxoprofen and pharmacotherapy for gastrointestinal bleeding. Methods This cost-effectiveness analysis was performed as a long-term simulation using the Markov model from the Japanese public healthcare payer’s perspective. The analysis was conducted using loxoprofen with real-world weighted price by branded/generic distribution (hereinafter, loxoprofen with weighted price) as a comparator. In the model, we simulated the prognosis of patients with chronic pain by OA, RA, and LBP treated with loxoprofen or celecoxib, over a lifetime period. Results A cost-increase of 129,688 JPY (1,245.00 USD) for branded celecoxib and a cost-reduction of 6,268 JPY (60.17 USD) for AG celecoxib were recognized per patient in lifetime horizon, compared to loxoprofen with weighted price. No case was recognized to reverse the results of cost-saving by AG celecoxib in one-way sensitivity analysis. The incremental cost-effectiveness ratio of branded celecoxib attained 5,403,667 JPY/QALY (51,875.20 USD/QALY), compared to loxoprofen with the weighted price. Conclusion The current cost-effectiveness analysis for AG celecoxib revealed its good value for costs, considering the patients’ future risk of gastrointestinal injury; also, the impact on costs due to AG celecoxib against loxoprofen will be small. It implies that the disadvantage of AG celecoxib being slightly more expensive than generic loxoprofen could be offset by the good cost-effectiveness during the prognosis.
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Affiliation(s)
- Yusuke Karasawa
- Medical Affairs, Viatris Pharmaceuticals Japan Inc., Tokyo, Japan
- * E-mail:
| | - Isao Kamae
- Department of Health Policy and Technology Assessment, Graduate School of Public Policy, The University of Tokyo, Tokyo, Japan
| | - Kazutaka Nozawa
- Medical Affairs, Viatris Pharmaceuticals Japan Inc., Tokyo, Japan
| | | | | | - Satoshi Soen
- Soen Orthopaedics, Osteoporosis and Rheumatology Clinic, Kobe, Japan
| | - Choitsu Sakamoto
- Department of Gastroenterology, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan
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12
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Jamalan M, Barzegari E, Gholami-Borujeni F. Structure-Based Screening to Discover New Inhibitors for Papain-like Proteinase of SARS-CoV-2: An In Silico Study. J Proteome Res 2021; 20:1015-1026. [PMID: 33350309 PMCID: PMC7770893 DOI: 10.1021/acs.jproteome.0c00836] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Indexed: 12/23/2022]
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) expresses a multifunctional papain-like proteinase (PLpro), which mediates the processing of the viral replicase polyprotein. Inhibition of PLpro has been shown to suppress the viral replication. This study aimed to explore new anti-PLpro candidates by applying virtual screening based on GRL0617, a known PLpro inhibitor of SARS coronavirus (SARS-CoV). The three-dimensional (3D) structure of SARS-CoV-2 PLpro was built by homology modeling, using SARS-CoV PLpro as the template. The model was refined and studied through molecular dynamic simulation. AutoDock Vina was then used to perform virtual screening where 50 chemicals with at least 65% similarity to GRL0617 were docked with the optimized SARS-CoV-2 PLpro. In this screening, 5-(aminomethyl)-2-methyl-N-[(1R)-1-naphthalen-1-ylethyl]benzamide outperformed GRL0617 in terms of binding affinity (-9.7 kcal/mol). Furthermore, 2-(4-fluorobenzyl)-5-nitro-1H-isoindole-1,3(2H)-dione (previously introduced as an inhibitor of cyclooxygenase-2), 3-nitro-N-[(1r)-1-phenylethyl]-5-(trifluoromethyl)benzamide (inhibitor against Mycobacterium tuberculosis), as well as the recently introduced SARS-CoV-2 PLpro inhibitor 5-acetamido-2-methyl-N-[(1S)-1-naphthalen-1-ylethyl]benzamide showed promising affinity for the viral proteinase. All of the identified compounds demonstrated an acceptable pharmacokinetic profile. In conclusion, our findings represent rediscovery of analgesic, anti-inflammatory, antibacterial, or antiviral drugs as promising pharmaceutical candidates against the ongoing coronavirus.
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Affiliation(s)
- Mostafa Jamalan
- Department
of Biochemistry, Abadan Faculty of Medical
Sciences, Abadan 6313833177, Iran
| | - Ebrahim Barzegari
- Medical
Biology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah 6715847141, Iran
| | - Fathollah Gholami-Borujeni
- Department
of Environmental Health, Mazandaran University
of Medical Sciences, Mazandaran 4815733971, Iran
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13
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Elrayess R, Elgawish MS, Elewa M, Nafie MS, Elhady SS, Yassen ASA. Synthesis, 3D-QSAR, and Molecular Modeling Studies of Triazole Bearing Compounds as a Promising Scaffold for Cyclooxygenase-2 Inhibition. Pharmaceuticals (Basel) 2020; 13:ph13110370. [PMID: 33172102 PMCID: PMC7694773 DOI: 10.3390/ph13110370] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 10/26/2020] [Accepted: 11/03/2020] [Indexed: 02/07/2023] Open
Abstract
Targeting of cyclooxygenase-2 (COX-2) has emerged as a powerful tool for therapeutic intervention because the overexpression of this enzyme is synonymous with inflammation, cancer, and neurodegenerative diseases. Herein, a new series of 1,2,4-triazole Schiff bases scaffold with aryl and heteroaryl systems 9a–12d were designed, synthesized, structurally elucidated, and biologically evaluated as a potent COX-2 blocker. The rationale beyond the current study is to increase the molecule bulkiness allowing a selective binding to the unique hydrophobic pocket of COX-2. Among the triazole–thiazole hybrids, the one with the para-methoxy moiety linked to a phenyl ring 12d showed the highest In vitro selectivity by COX-2 inhibition assay (IC50 of 0.04 μM) and in situ anti-inflammatory activity when evaluated using the protein denaturation assay (IC50 of 0.88 μM) in comparison with commercially available selective COX-2 inhibitor, Celecoxib (IC50 of 0.05 μM). Towards the COX-2 selectivity, ligand-based three dimensional quantitative structures activity relationship (3D-QSAR) employing atomic-based and field-based approaches were performed and resulted in the necessity of triazole and thiazole/oxazole scaffolds for COX-2 blocking. Furthermore, the molecular modeling study indicated a high selectivity and promising affinity of our prepared compounds to COX-2, especially the hydrophobic pocket and the mouth of the active site holding hydrogen-bonding, hydrophobic, and electrostatic interactions. In Silico absorption, delivery, metabolism, and excretion (ADME) predictions showed that all the pharmacokinetic and physicochemical features are within the appropriate range for human use.
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Affiliation(s)
- Ranza Elrayess
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Suez Canal University, Ismailia 41522, Egypt; (R.E.); (M.E.)
| | - Mohamed Saleh Elgawish
- Medicinal Chemistry Department, Faculty of Pharmacy, Suez Canal University, Ismailia 41522, Egypt;
| | - Marwa Elewa
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Suez Canal University, Ismailia 41522, Egypt; (R.E.); (M.E.)
| | - Mohamed S. Nafie
- Chemistry Department, Faculty of Science, Suez Canal University, Ismailia 41522, Egypt;
| | - Sameh S. Elhady
- Department of Natural Products, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia;
| | - Asmaa S. A. Yassen
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Suez Canal University, Ismailia 41522, Egypt; (R.E.); (M.E.)
- Correspondence: ; Tel.: +20-1096206738; Fax: +20-064-3230741
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14
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Dual COX and 5-LOX inhibition by clerodane diterpenes from seeds of Polyalthia longifolia (Sonn.) Thwaites. Sci Rep 2020; 10:15965. [PMID: 32994508 PMCID: PMC7524750 DOI: 10.1038/s41598-020-72840-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 08/24/2020] [Indexed: 11/09/2022] Open
Abstract
Natural metabolites with their specific bioactivities are being considered as a potential source of materials for pharmacological studies. In this study, we successfully isolated and identified five known clerodane diterpenes, namely 16-oxo-cleroda-3,13(14)E-dien-15-oic acid (1), 16-hydroxy-cleroda-3,13-dien-15-oic acid (2), 16-hydroxy-cleroda-4(18),13-dien-16,15-olide (3), 3α,16α-dihydroxy-cleroda-4(18),13(14)Z-dien-15,16-olide (4), and 16α-hydroxy-cleroda-3,13(14)Z-dien-15,16-olide (5) from the methanolic extract of seeds of Polyalthia longifolia. Initially, all the isolated metabolites were investigated for COX-1, COX-2, and 5-LOX inhibitory activities using the standard inhibitory kits. Of which, compounds 3, 4, and 5 exhibited to be potent COX-1, COX-2, and 5-LOX inhibitors with the IC50 values similar or lower to those of the reference drugs. To understand the underlying mechanism, these compounds were subjected to molecular docking on COX-1, COX-2, and 5-LOX proteins. Interestingly, the in silico study results were in high accordance with in vitro studies where compounds 3, 4, and 5 hits assumed interactions and binding pattern comparable to that of reference drugs (indomethacin and diclofenac), as a co-crystallized ligand explaining their remarkable dual (COX/LOX) inhibitor actions. Taken together, our findings demonstrated that compounds 3, 4, and 5 functioned as dual inhibitors of COX/5-LOX and can contribute to the development of novel, more effective anti-inflammatory drugs with minimal side-effects.
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15
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Modification of the lead molecule: Tryptophan and piperidine appended triazines reversing inflammation and hyeperalgesia in rats. Bioorg Med Chem 2020; 28:115246. [PMID: 31843462 DOI: 10.1016/j.bmc.2019.115246] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2019] [Revised: 11/23/2019] [Accepted: 11/29/2019] [Indexed: 11/20/2022]
Abstract
The structural optimization of the molecules making them to fit into the active site pocket of COX-2 occupying the same space as covered by the natural substrate arachidonic acid helped in the emergence of compound 10 as an efficacious anti-inflammatory agent. Selective for COX-2 over COX-1, compound 10 exhibited IC50 0.02 µM for COX-2 and reversed acetic acid induced inflammation in rats by 73% when used at 10 mg kg-1 dose and the same dose of the compound also rescued the animals from inflammatory phase of formalin induced hyperalgesia. As evidenced by the results of molecular modeling studies supported by the nuclear Overhauser enhancement data, the appropriate geometry of the molecule in the active site pocket of COX-2 contributing to its H-bond/hydrophobic interactions with Ser530, Trp387 and Tyr385 seems responsible for the enzyme inhibitory activity of the compound.
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16
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Seasonal expressions of prostaglandin E synthases and receptors in the prostate of the wild ground squirrel (Spermophilus dauricus). Prostaglandins Other Lipid Mediat 2020; 148:106412. [PMID: 31927132 DOI: 10.1016/j.prostaglandins.2020.106412] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Revised: 12/12/2019] [Accepted: 12/27/2019] [Indexed: 12/20/2022]
Abstract
The prostate gland is a male accessory reproductive gland, whose vitality and function are under tight regulation of different hormones. Prostaglandins E2 (PGE2) is one of the major products generated by the actions of cyclooxygenases (COX) and prostaglandin E synthase (PTGES) on arachidonic acid, and is involved in a number of physiological and pathological processes. In this study, we investigated the seasonal immunolocalizations and expressions of COX-1, COX-2 and PTGES, as well as PGE2 receptors (PTGERs) subtypes 1-4 (EP1, EP2, EP3, EP4) in the prostate of the wild ground squirrel. Histological examination observed enlarged prostatic lumens in the breeding season and significantly shrunken lumens in the nonbreeding season. COX-1, COX-2, PTGES and PTGERs were mainly localized in epithelial and stromal cells in the breeding and nonbreeding seasons. The mRNA expression levels of Cox-1, Cox-2, Ptges, Ptger2 (encoding EP2) and Ptger4 (encoding EP4) were higher in the prostate of the breeding season than in the nonbreeding season. The relative mRNA levels of Cox-1, Cox-2, Ptges, Ptger2 and Ptger4 were positively correlated with prostatic weights. In addition, both the prostatic and plasma concentrations of PGE2 were significantly higher in the breeding season compared to the nonbreeding season. These results suggested that PGE2 synthesis and signaling might play an important autocrine or paracrine role in the regulation of seasonal changes in the prostatic function of the wild ground squirrel.
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17
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Abdellatif KRA, Abdelall EKA, Lamie PF, Labib MB, El-Nahaas ES, Abdelhakeem MM. New pyrazole derivatives possessing amino/methanesulphonyl pharmacophore with good gastric safety profile: Design, synthesis, cyclooxygenase inhibition, anti-inflammatory activity and histopathological studies. Bioorg Chem 2019; 95:103540. [PMID: 31911297 DOI: 10.1016/j.bioorg.2019.103540] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Revised: 10/16/2019] [Accepted: 12/21/2019] [Indexed: 10/25/2022]
Abstract
New series of pyrazole derivatives Va-c, VIa-c, VIIa-f, and VIII possessing amino/methanesulphonyl moiety as COX-2 pharmacophore were designed and synthesized. All compounds were evaluated for both in vitro COX inhibition and in vivo anti-inflammatory activities and all of them were more potent against COX-2 than COX-1 isozyme and showed good in vivo anti-inflammatory activity. Compounds Va, VIa, VIc and VIIa-c showed good COX-2 SI (246.8-353.8) in comparison with the COX-2 selective drug; celecoxib (326.7). Also, they showed good anti-inflammatory activity with edema inhibition (51-86 and 83-96%) relative to celecoxib (60.6 and 82.8%) after 3 and 5 h respectively. Additionally, these potent derivatives Va, VIa, VIc and VIIa-c were significantly less ulcerogenic (ulcer indexes = 0.7-2.0) than indomethacin (ulcer index = 21.3) and were of acceptable ulcerogenicity when compared with the non-ulcerogenic reference drug celecoxib (ulcer index = 1.3). The obtained ulcerogenic liability data revealed the gastric safety of these derivatives which was confirmed by the histopathological studies. Docking study was performed for all synthesized derivatives to explain their interaction with COX-2 receptor active site.
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Affiliation(s)
- Khaled R A Abdellatif
- Department of Pharmaceutical Organic Chemistry, Beni-Suef University, Beni-Suef 62514, Egypt; Pharmaceutical Sciences Department, Ibn Sina National College for Medical Studies, Jeddah 21418, Saudi Arabia.
| | - Eman K A Abdelall
- Department of Pharmaceutical Organic Chemistry, Beni-Suef University, Beni-Suef 62514, Egypt
| | - Phoebe F Lamie
- Department of Pharmaceutical Organic Chemistry, Beni-Suef University, Beni-Suef 62514, Egypt
| | - Madlen B Labib
- Department of Pharmaceutical Organic Chemistry, Beni-Suef University, Beni-Suef 62514, Egypt
| | - El-Shaymaa El-Nahaas
- Departement of Pathology, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef 62511, Egypt
| | - Marwa M Abdelhakeem
- Department of Pharmaceutical Organic Chemistry, Beni-Suef University, Beni-Suef 62514, Egypt
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18
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Nwet Win N, Hardianti B, Kasahara S, Ngwe H, Hayakawa Y, Morita H. Anti-inflammatory activities of isopimara-8(14),-15-diene diterpenoids and mode of action of kaempulchraols P and Q from Kaempferia pulchra rhizomes. Bioorg Med Chem Lett 2019; 30:126841. [PMID: 31836445 DOI: 10.1016/j.bmcl.2019.126841] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 11/06/2019] [Accepted: 11/15/2019] [Indexed: 01/24/2023]
Abstract
Inflammation is an extensively recognized link to many pathological diseases. It is a host response for protection from infections and tissue damage. Infections trigger acute inflammation; however, persistent infection will contribute to chronic inflammation and higher disease susceptibility. Deregulated inflammatory responses can cause excessive or long-lasting tissue damage, manifested as cancer, immune disorders, diabetes, etc. NF-κB is a central mediator of pro-inflammatory gene induction and functions in both innate and adaptive immune cells; therefore, the anti-inflammatory regulation of NF-κB is needed. Natural products reportedly play an important role in controlling the inflammatory response pathways. However, the anti-inflammatory activities of isopimara-8-(14),15-diene diterpenoids have not yet been fully elucidated. To elucidate the anti-inflammatory activities of the isopimara-8(14),15-diene diterpenoids, we investigated 21 isopimara-8(14),15-diene diterpenoids previously isolated from Kaempferia pulchra rhizomes. Eleven compounds exhibited NO inhibitory activity against lipopolysaccharide (LPS)-induced RAW264.7 cells, with IC50 values ranging from 30 to 100 μM. Furthermore, the most potent kaempulchraols P and Q, with IC50 values of 39.88 and 36.05 μM, respectively, inhibited the NF-κB-mediated transactivation of a luciferase reporter gene, IL-6 production, and COX-2 expression, with an effective dose of 25 μM. These findings provide new insights into the anti-inflammatory activities of the isopimara-8(14),15-diene diterpenoids.
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Affiliation(s)
- Nwet Nwet Win
- Institute of Natural Medicine, University of Toyama, 2630-Sugitani, Toyama 930-0194, Japan
| | - Besse Hardianti
- Institute of Natural Medicine, University of Toyama, 2630-Sugitani, Toyama 930-0194, Japan; Sekolah Tinggi Ilmu Farmasi Makassar, Perintis Kemerdekaan Street KM13.7, Makassar 90242, Indonesia
| | - Shiori Kasahara
- Institute of Natural Medicine, University of Toyama, 2630-Sugitani, Toyama 930-0194, Japan
| | - Hla Ngwe
- Department of Chemistry, University of Yangon, Yangon 11041, Myanmar
| | - Yoshihiro Hayakawa
- Institute of Natural Medicine, University of Toyama, 2630-Sugitani, Toyama 930-0194, Japan.
| | - Hiroyuki Morita
- Institute of Natural Medicine, University of Toyama, 2630-Sugitani, Toyama 930-0194, Japan.
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19
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Effect of early pregnancy on the expression of prostaglandin synthases in the ovine thymus. Theriogenology 2019; 136:166-171. [PMID: 31265945 DOI: 10.1016/j.theriogenology.2019.06.040] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Revised: 06/09/2019] [Accepted: 06/24/2019] [Indexed: 11/21/2022]
Abstract
Thymus is a primary lymphoid organ, must adapt to the presence of fetal alloantigens. Prostaglandins (PGs) have diverse effects to activate or inhibit the immune response, but effects of early pregnancy on the expression of PG synthases in ovine maternal thymus are unclear. In this study, ovine thymic samples were obtained at day 16 of the estrous cycle, and days 13, 16 and 25 of pregnancy. The expression of PG synthases, including cyclooxygenase 1 (COX-1), COX-2, PGE2 synthase (PTGES), and a prostaglandin F2α synthase (Aldo-keto reductase family 1, member B1, AKR1B1), was evaluated using quantitative real-time PCR, Western blot and immunohistochemistry analysis. In addition, the thymus/body ratio was also calculated. Our results showed that the expression of COX-2 mRNA and protein, AKR1B1 mRNA and dimer were up-regulated on day 25 of pregnancy (P < 0.05), and expression of COX-1, PTGES mRNA and protein, AKR1B1 monomer and thymus/body ratio were similar at different stages of pregnancy and the estrous cycle. The immunohistochemistry results showed that the COX-2 and AKR1B1 proteins were located in the stromal cells, capillaries and thymic corpuscles. This is the first study to report that expression of COX-2 and AKR1B1 dimer is up-regulated in the maternal thymus during early pregnancy, suggesting that early pregnancy exerts its effects on maternal thymus, which is involved in immunomodulation during early pregnancy in sheep.
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20
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Pereira RB, Pereira DM, Jiménez C, Rodríguez J, Nieto RM, Videira RA, Silva O, Andrade PB, Valentão P. Anti-Inflammatory Effects of 5α,8α-Epidioxycholest-6-en-3β-ol, a Steroidal Endoperoxide Isolated from Aplysia depilans, Based on Bioguided Fractionation and NMR Analysis. Mar Drugs 2019; 17:E330. [PMID: 31163615 PMCID: PMC6628248 DOI: 10.3390/md17060330] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Revised: 05/27/2019] [Accepted: 05/29/2019] [Indexed: 01/17/2023] Open
Abstract
Sea hares of Aplysia genus are recognized as a source of a diverse range of metabolites. 5α,8α-Endoperoxides belong to a group of oxidized sterols commonly found in marine organisms and display several bioactivities, including antimicrobial, anti-tumor, and immunomodulatory properties. Herein we report the isolation of 5α,8α-epidioxycholest-6-en-3β-ol (EnP(5,8)) from Aplysia depilans Gmelin, based on bioguided fractionation and nuclear magnetic resonance (NMR) analysis, as well as the first disclosure of its anti-inflammatory properties. EnP(5,8) revealed capacity to decrease cellular nitric oxide (NO) levels in RAW 264.7 macrophages treated with lipopolysaccharide (LPS) by downregulation of the Nos2 (inducible nitric oxide synthase, iNOS) gene. Moreover, EnP(5,8) also inhibited the LPS-induced expression of cyclooxygenase-2 (COX-2), interleukin 6 (IL-6), and tumor necrosis factor alpha (TNF-α) at the mRNA and protein levels. Mild selective inhibition of COX-2 enzyme activity was also evidenced. Our findings provide evidence of EnP(5,8) as a potential lead drug molecule for the development of new anti-inflammatory agents.
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Affiliation(s)
- Renato B Pereira
- REQUIMTE/LAQV, Laboratório de Farmacognosia, Departamento de Química, Faculdade de Farmácia, Universidade do Porto, R. Jorge Viterbo Ferreira, nº 228, 4050-313 Porto, Portugal.
| | - David M Pereira
- REQUIMTE/LAQV, Laboratório de Farmacognosia, Departamento de Química, Faculdade de Farmácia, Universidade do Porto, R. Jorge Viterbo Ferreira, nº 228, 4050-313 Porto, Portugal.
| | - Carlos Jiménez
- Departamento de Química, Facultade de Ciencias e Centro de Investigacións Científicas Avanzadas (CICA), Universidade da Coruña, E-15071 A Coruña, Spain.
| | - Jaime Rodríguez
- Departamento de Química, Facultade de Ciencias e Centro de Investigacións Científicas Avanzadas (CICA), Universidade da Coruña, E-15071 A Coruña, Spain.
| | - Rosa M Nieto
- Departamento de Química, Facultade de Ciencias e Centro de Investigacións Científicas Avanzadas (CICA), Universidade da Coruña, E-15071 A Coruña, Spain.
| | - Romeu A Videira
- REQUIMTE/LAQV, Laboratório de Farmacognosia, Departamento de Química, Faculdade de Farmácia, Universidade do Porto, R. Jorge Viterbo Ferreira, nº 228, 4050-313 Porto, Portugal.
| | - Olga Silva
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Professor Gama Pinto, 1649-003 Lisbon, Portugal.
| | - Paula B Andrade
- REQUIMTE/LAQV, Laboratório de Farmacognosia, Departamento de Química, Faculdade de Farmácia, Universidade do Porto, R. Jorge Viterbo Ferreira, nº 228, 4050-313 Porto, Portugal.
| | - Patrícia Valentão
- REQUIMTE/LAQV, Laboratório de Farmacognosia, Departamento de Química, Faculdade de Farmácia, Universidade do Porto, R. Jorge Viterbo Ferreira, nº 228, 4050-313 Porto, Portugal.
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21
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Li YJ, Luo LJ, Harroun SG, Wei SC, Unnikrishnan B, Chang HT, Huang YF, Lai JY, Huang CC. Synergistically dual-functional nano eye-drops for simultaneous anti-inflammatory and anti-oxidative treatment of dry eye disease. NANOSCALE 2019; 11:5580-5594. [PMID: 30860532 DOI: 10.1039/c9nr00376b] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
We have developed a rapid and straightforward topical treatment method for dry eye disease (DED) using poly(catechin) capped-gold nanoparticles (Au@Poly-CH NPs) carrying amfenac [AF; a nonsteroidal anti-inflammatory drug (NSAID)] through effective attenuation of ocular surface tissue damage in dry eyes. A dual-targeted strategy based on ocular therapeutics was adopted to simultaneously block the cyclooxygenase enzymes-induced inflammation and reactive oxygen species (ROS)-induced oxidative stress, the primary two causes of DED. The self-assembled core-shell Au@Poly-CH NPs synthesized via a simple reaction between tetrachloroaurate(iii) and catechin possess a poly(catechin) shell (∼20 nm) on the surface of each Au NP (∼60 nm). The anti-oxidant and anti-inflammatory properties of AF/Au@Poly-CH NPs were evaluated by DCFH-DA and prostaglandin E2/VEGF assays, respectively. Our results demonstrate that Au@Poly-CH NPs not only act as an anti-oxidant to suppress ROS-mediated processes, but also serve as a drug carrier of AF for a synergistic effect on anti-inflammation. In vivo biocompatibility studies show good tolerability of AF/Au@Poly-CH NPs for potential use in the treatment of ocular surface pathologies. The dual-targeted therapeutic effects of AF/Au@Poly-CH NPs lead to rapid recovery from DED in a rabbit model. Au@Poly-CH NPs loaded with NSAIDs is a promising multifunctional nanocomposite for treating various inflammation- and oxidative stress-related diseases.
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Affiliation(s)
- Yu-Jia Li
- Graduate Institute of Biomedical Engineering, Chang Gung University, Taoyuan, 33302, Taiwan.
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22
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Liu P, Li H, Luan R, Huang G, Liu Y, Wang M, Chao Q, Wang L, Li D, Fan H, Chen D, Li L, Matsuzaki K, Li W, Koike K, Zhao F. Identification of β-carboline and canthinone alkaloids as anti-inflammatory agents but with different inhibitory profile on the expression of iNOS and COX-2 in lipopolysaccharide-activated RAW 264.7 macrophages. J Nat Med 2018; 73:124-130. [PMID: 30324332 PMCID: PMC6407838 DOI: 10.1007/s11418-018-1251-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2018] [Accepted: 10/01/2018] [Indexed: 02/05/2023]
Abstract
A compound library, which consists of 75 natural β-carboline-type or canthinone-type alkaloids from Simaroubaceae plants and their chemical synthetic analogues, was screened for the anti-inflammatory activity by inhibition of the overproduction of inflammatory mediator nitric oxide (NO) in lipopolysaccharide (LPS)-activated RAW 264.7 macrophage cells. Six compounds, namely, benzalharman (23), kumujian (27), 1-ethyl-1,2,3,4-tetrahydro-β-carboline-3-carboxylic acid (37), 1-acetophenone-1,2,3,4-tetrahydro-β-carboline-3-carboxylic acid (42), cathin-6-one (46), and 9-methoxy-cathin-6-one (57), exhibited significant inhibitory activity on the overproduction of NO with good dose dependency. Further investigation demonstrated that all of the six compounds down-regulated the high expression of inducible nitric oxide synthase (iNOS) protein. Among them, two canthinone-type alkaloids (46 and 57) potently down-regulated cyclooxygenase-2 (COX-2) protein expression in a dose-dependent manner and also inhibited the overproduction of inflammatory mediator prostaglandin E2 (PGE2). However, the β-carboline-type alkaloids (23, 27, 37, and 42) exhibited no obvious inhibition on the overproduction of PGE2 and the expression of COX-2 protein. The results suggested that β-carboline-type alkaloids and canthinone-type alkaloids may exert an anti-inflammatory effect through different mechanism.
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Affiliation(s)
- Pan Liu
- Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, School of Pharmacy, Yantai University, Yantai, Shandong, 264005, People's Republic of China
| | - Huixiang Li
- Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, School of Pharmacy, Yantai University, Yantai, Shandong, 264005, People's Republic of China
| | - Ruiling Luan
- Pharmacy Dispensing Center, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, Shandong, 264000, People's Republic of China
| | - Guiyan Huang
- Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, School of Pharmacy, Yantai University, Yantai, Shandong, 264005, People's Republic of China
| | - Yanan Liu
- Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, School of Pharmacy, Yantai University, Yantai, Shandong, 264005, People's Republic of China
| | - Mengdi Wang
- Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, School of Pharmacy, Yantai University, Yantai, Shandong, 264005, People's Republic of China
| | - Qiuli Chao
- Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, School of Pharmacy, Yantai University, Yantai, Shandong, 264005, People's Republic of China
| | - Liying Wang
- Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, School of Pharmacy, Yantai University, Yantai, Shandong, 264005, People's Republic of China
| | - Danna Li
- Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, School of Pharmacy, Yantai University, Yantai, Shandong, 264005, People's Republic of China
| | - Huaying Fan
- Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, School of Pharmacy, Yantai University, Yantai, Shandong, 264005, People's Republic of China
| | - Daquan Chen
- Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, School of Pharmacy, Yantai University, Yantai, Shandong, 264005, People's Republic of China
| | - Linyu Li
- Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, School of Pharmacy, Yantai University, Yantai, Shandong, 264005, People's Republic of China
| | - Keiichi Matsuzaki
- School of Pharmacy, Nihon University, Funabashi, Chiba, 274-8555, Japan
| | - Wei Li
- Faculty of Pharmaceutical Sciences, Toho University, Funabashi, Chiba, 274-8510, Japan.
| | - Kazuo Koike
- Faculty of Pharmaceutical Sciences, Toho University, Funabashi, Chiba, 274-8510, Japan
| | - Feng Zhao
- Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, School of Pharmacy, Yantai University, Yantai, Shandong, 264005, People's Republic of China.
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23
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Yang L, Liu Y, Lv W, Wang P, Wang B, Xue J, Zhang L. Expression of interferon-stimulated gene 15-kDa protein, cyclooxygenase (COX) 1, COX-2, aldo-keto reductase family 1, member B1, and prostaglandin E synthase in the spleen during early pregnancy in sheep. Anim Sci J 2018; 89:1540-1548. [DOI: 10.1111/asj.13101] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Accepted: 07/17/2018] [Indexed: 12/22/2022]
Affiliation(s)
- Ling Yang
- Department of Animal Science; College of Life Sciences and Food Engineering; Hebei University of Engineering; Handan China
| | - Yong Liu
- Department of Animal Science; College of Life Sciences and Food Engineering; Hebei University of Engineering; Handan China
| | - Wan Lv
- Department of Animal Science; College of Life Sciences and Food Engineering; Hebei University of Engineering; Handan China
| | - Pengda Wang
- Department of Animal Science; College of Life Sciences and Food Engineering; Hebei University of Engineering; Handan China
| | - Bin Wang
- Department of Animal Science; College of Life Sciences and Food Engineering; Hebei University of Engineering; Handan China
| | - Jie Xue
- Department of Animal Science; College of Life Sciences and Food Engineering; Hebei University of Engineering; Handan China
| | - Leying Zhang
- Department of Animal Science; College of Life Sciences and Food Engineering; Hebei University of Engineering; Handan China
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24
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Singh P, Kaur S, Kumari P, Kaur B, Kaur M, Singh G, Bhatti R, Bhatti M. Tailoring the Substitution Pattern on 1,3,5-Triazine for Targeting Cyclooxygenase-2: Discovery and Structure–Activity Relationship of Triazine–4-Aminophenylmorpholin-3-one Hybrids that Reverse Algesia and Inflammation in Swiss Albino Mice. J Med Chem 2018; 61:7929-7941. [DOI: 10.1021/acs.jmedchem.8b00922] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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25
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Kaur S, Kumari P, Singh G, Bhatti R, Singh P. Design and Synthesis of Aza-/Oxa Heterocycle-Based Conjugates as Novel Anti-Inflammatory Agents Targeting Cyclooxygenase-2. ACS OMEGA 2018; 3:5825-5845. [PMID: 30023927 PMCID: PMC6044720 DOI: 10.1021/acsomega.8b00445] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Accepted: 05/17/2018] [Indexed: 05/13/2023]
Abstract
A library of hybrid molecules was procured by the combination of triazine-indole adduct with morpholine/piperidine/pyrrolidine and pyrazole/pyrimidine/oxindole moieties. Enzyme immunoassays on cyclooxygenase-1 (COX-1) and cyclooxygenase-2 (COX-2) identified compound 6 having an IC50 value of 20 nM for COX-2 and 3000 nM for COX-1. The significant reduction in the formation of prostaglandin E2 in the lipopolysaccharide-treated (COX-2-activated) human whole blood, almost no change in the production of thromboxane B2 in the calcium ionophore-treated (COX-1-activated) sample of human whole blood, and the mechanistic studies on Swiss albino mice ensured that compound 6 is selective for COX-2. The association constant (Ka) of compound 6 with COX-2 was found to be of the order of 0.48 × 106 M-1. The diffusion spectroscopy experiments and relaxation time (T1) calculations of compound 6 in the presence of COX-2 assisted in identifying the site-specific interactions of 6 with the enzyme, and these results fall into nice correlation with the theoretical data obtained from molecular docking and quantitative structure-activity relationship studies. With maximum tolerable dose >2000 mg kg-1, compound 6 made 68 and 32% reduction in formalin-induced analgesia and carrageenan-induced inflammation in Swiss albino mice.
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Affiliation(s)
- Sukhmeet Kaur
- Department
of Chemistry—Centre for Advanced Studies and Department of
Pharmaceutical Sciences, Guru Nanak Dev
University, Amritsar 143005, India
| | - Priya Kumari
- Department
of Chemistry—Centre for Advanced Studies and Department of
Pharmaceutical Sciences, Guru Nanak Dev
University, Amritsar 143005, India
| | - Gurjit Singh
- Department
of Chemistry—Centre for Advanced Studies and Department of
Pharmaceutical Sciences, Guru Nanak Dev
University, Amritsar 143005, India
| | - Rajbir Bhatti
- Department
of Chemistry—Centre for Advanced Studies and Department of
Pharmaceutical Sciences, Guru Nanak Dev
University, Amritsar 143005, India
| | - Palwinder Singh
- Department
of Chemistry—Centre for Advanced Studies and Department of
Pharmaceutical Sciences, Guru Nanak Dev
University, Amritsar 143005, India
- E-mail: (P.S.)
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26
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Shi L, Xu L, Wu C, Xue B, Jin X, Yang J, Zhu X. Celecoxib-Induced Self-Assembly of Smart Albumin-Doxorubicin Conjugate for Enhanced Cancer Therapy. ACS APPLIED MATERIALS & INTERFACES 2018; 10:8555-8565. [PMID: 29481741 DOI: 10.1021/acsami.8b00875] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Recent years have witnessed the great contributions that drug combination therapy has made for enhanced cancer therapy. However, because of the complicated pharmacokinetics of combined drug formulations, the majority of combination strategies show severe adverse effects at high dosage and poor biodistribution in vivo. To overcome these deficiencies and achieve enhanced cancer therapy, we put forward a method to construct a smart albumin-based nanoplatform, denoted as K237-HSA-DC, for codelivery of cyclooxygenase-2 (COX-2) inhibitor (celecoxib) and chemotherapeutic agent (doxorubicin, DOX). Both in vitro and in vivo studies indicate that K237-HSA-DC exhibits the best therapeutic efficacy on tumor cells compared with all the other formulations. Moreover, K237-HSA-DC shows fewer side effects on normal organs in contrast to other formulations. To understand the reasons behind the improved drug efficacy in depth, we performed a cell metabonomics-based mechanism study and found that celecoxib could enhance the inhibitory effect of DOX on the transport of glucose into cells and then lead to subsequent significant energy metabolism inhibition. Considering the above-mentioned advantages of K237-HSA-DC, we believe the smart albumin-based nanoplatform can serve as a promising drug delivery system for enhanced cancer therapy.
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Affiliation(s)
- Leilei Shi
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites , Shanghai Jiao Tong University , 800 Dongchuan Road , Shanghai 200240 , China
| | - Li Xu
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites , Shanghai Jiao Tong University , 800 Dongchuan Road , Shanghai 200240 , China
| | - Chenwei Wu
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites , Shanghai Jiao Tong University , 800 Dongchuan Road , Shanghai 200240 , China
| | - Bai Xue
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites , Shanghai Jiao Tong University , 800 Dongchuan Road , Shanghai 200240 , China
| | - Xin Jin
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites , Shanghai Jiao Tong University , 800 Dongchuan Road , Shanghai 200240 , China
| | - Jiapei Yang
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites , Shanghai Jiao Tong University , 800 Dongchuan Road , Shanghai 200240 , China
| | - Xinyuan Zhu
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites , Shanghai Jiao Tong University , 800 Dongchuan Road , Shanghai 200240 , China
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27
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Thangavel S, Mulet CT, Atluri VSR, Agudelo M, Rosenberg R, Devieux JG, Nair MPN. Oxidative Stress in HIV Infection and Alcohol Use: Role of Redox Signals in Modulation of Lipid Rafts and ATP-Binding Cassette Transporters. Antioxid Redox Signal 2018; 28:324-337. [PMID: 29132227 PMCID: PMC5743035 DOI: 10.1089/ars.2016.6830] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
AIMS Human immunodeficiency virus (HIV) infection induces oxidative stress and alcohol use accelerates disease progression, subsequently causing immune dysfunction. However, HIV and alcohol impact on lipid rafts-mediated immune dysfunction remains unknown. In this study, we investigate the modulation by which oxidative stress induces reactive oxygen species (ROS) affecting redox expression, lipid rafts caveiloin-1, ATP-binding cassette (ABC) transporters, and transcriptional sterol regulatory element-binding protein (SREBP) gene and protein modification and how these mechanisms are associated with arachidonic acid (AA) metabolites in HIV positive alcohol users, and how they escalate immune dysfunction. RESULTS In both alcohol using HIV-positive human subjects and in vitro studies of alcohol with HIV-1 gp120 protein in peripheral blood mononuclear cells, increased ROS production significantly affected redox expression in glutathione synthetase (GSS), super oxide dismutase (SOD), and glutathione peroxidase (GPx), and subsequently impacted lipid rafts Cav-1, ABC transporters ABCA1, ABCG1, ABCB1, and ABCG4, and SREBP transcription. The increased level of rate-limiting enzyme 3-hydroxy-3-methylglutaryl HMG-CoA reductase (HMGCR), subsequently, inhibited 7-dehydrocholesterol reductase (DHCR-7). Moreover, the expression of cyclooxygenase-2 (COX-2) and lipoxygenase-5 (5-LOX) mRNA and protein modification tentatively increased the levels of prostaglandin E2 synthases (PGE2) in plasma when compared with either HIV or alcohol alone. INNOVATION This article suggests for the first time that the redox inhibition affects lipid rafts, ABC-transporter, and SREBP transcription and modulates AA metabolites, serving as an important intermediate signaling network during immune cell dysfunction in HIV-positive alcohol users. CONCLUSION These findings indicate that HIV infection induces oxidative stress and redox inhibition, affecting lipid rafts and ABC transports, subsequently upregulating AA metabolites and leading to immune toxicity, and further exacerbation with alcohol use. Antioxid. Redox Signal. 28, 324-337.
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Affiliation(s)
- Samikkannu Thangavel
- 1 Department of Immunology, Institute of NeuroImmune Pharmacology, College of Medicine, Florida International University , Miami, Florida
| | - Carmen T Mulet
- 1 Department of Immunology, Institute of NeuroImmune Pharmacology, College of Medicine, Florida International University , Miami, Florida
| | - Venkata S R Atluri
- 1 Department of Immunology, Institute of NeuroImmune Pharmacology, College of Medicine, Florida International University , Miami, Florida
| | - Marisela Agudelo
- 1 Department of Immunology, Institute of NeuroImmune Pharmacology, College of Medicine, Florida International University , Miami, Florida
| | - Rhonda Rosenberg
- 2 Department of Health Promotion & Disease Prevention, Robert Stempel School of Public Health, Florida International University , Miami, Florida
| | - Jessy G Devieux
- 2 Department of Health Promotion & Disease Prevention, Robert Stempel School of Public Health, Florida International University , Miami, Florida
| | - Madhavan P N Nair
- 1 Department of Immunology, Institute of NeuroImmune Pharmacology, College of Medicine, Florida International University , Miami, Florida
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28
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Han ZQ, Liao H, Shi F, Chen XP, Hu HC, Tian MQ, Wang LH, Ying S. Inhibition of cyclooxygenase-2 sensitizes lung cancer cells to radiation-induced apoptosis. Oncol Lett 2017; 14:5959-5965. [PMID: 29113232 PMCID: PMC5661612 DOI: 10.3892/ol.2017.6940] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2016] [Accepted: 06/15/2017] [Indexed: 12/05/2022] Open
Abstract
Radiotherapy resistance is an enduring major setback in lung cancer therapy, and is responsible for a large proportion of treatment failures. In previous years, cyclooxygenase-2 (COX-2) has frequently been reported to promote tumor occurrence and development, suggesting a potential role in radiotherapy resistance. To investigate whether COX-2 inhibitors can be applied in radiosensitization, an MTT assay was performed to examine cell viability after X-ray radiation in the presence or absence of the specific COX-2 inhibitor Celecoxib. Cell apoptosis and cell cycle changes were also detected through laser confocal scanning microcopy and flow cytometry. X-ray treatment only caused mild cell death in lung cancer A549 cells. However, combination treatment using celecoxib and X-ray radiation exhibited improved inhibitory effects and significantly suppressed cell proliferation. Therefore, COX-2 inhibitors combined with radiotherapy can counteract radiation-induced high COX-2 expression, demonstrating that celecoxib can function as a radiosensitizer of lung cancer cells. It is therefore reasonable to predict COX-2 inhibitors to be potential clinical radiotherapy synergists.
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Affiliation(s)
- Zhi-Qiang Han
- Department of Respiratory Internal Medicine, People's Hospital of Quzhou City, Quzhou, Zhejiang 324000, P.R. China
| | - Hongwei Liao
- Institute of Respiratory Diseases, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, P.R. China
| | - Feng Shi
- Department of Respiratory Internal Medicine, People's Hospital of Quzhou City, Quzhou, Zhejiang 324000, P.R. China
| | - Xiao-Ping Chen
- Department of Respiratory Internal Medicine, People's Hospital of Quzhou City, Quzhou, Zhejiang 324000, P.R. China
| | - Hua-Cheng Hu
- Department of Respiratory Internal Medicine, The Second Affiliated Hospital, Suzhou University, Suzhou, Jiangsu 215004, P.R. China
| | - Ming-Qing Tian
- Department of Respiratory Internal Medicine, People's Hospital of Quzhou City, Quzhou, Zhejiang 324000, P.R. China
| | - Li-Hua Wang
- Department of Respiratory Internal Medicine, People's Hospital of Quzhou City, Quzhou, Zhejiang 324000, P.R. China
| | - Songmin Ying
- Institute of Respiratory Diseases, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, P.R. China
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29
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Song B, Shu ZB, Du J, Ren JC, Feng Y. Anti-cancer effect of low dose of celecoxib may be associated with lnc-SCD-1:13 and lnc-PTMS-1:3 but not COX-2 in NCI-N87 cells. Oncol Lett 2017; 14:1775-1779. [PMID: 28789408 PMCID: PMC5529947 DOI: 10.3892/ol.2017.6316] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2015] [Accepted: 02/23/2017] [Indexed: 12/21/2022] Open
Abstract
In order to investigate the mechanism of celecoxib and whether long non-coding RNAs (lncRNAs) were involved in the effects of celecoxib treatment in NCI-N87 cells, NCI-N87 cells were treated with 15, 30 and 60 µM celecoxib and an MTT assay was performed to assess cell viability. Following treatment with 15 µM celecoxib, the cell cycle and apoptosis were analyzed by flow cytometry, and the mRNA levels of lnc-SCD-1:13, lnc-PTMS-1:3, cyclooxygenase-2 (COX-2), integrin α3 (ITGA3) and DSH homolog 1 (DVL1) were detected by reverse transcription quantitative PCR (RT-qPCR) in NCI-N87 cells. MTT analysis demonstrated that celecoxib significantly inhibited cell viability in treated cells compared with untreated cells. Flow cytometry analysis revealed that, compared with untreated cells, the percentage of cells in the G0/G1 phase was significantly increased, and the percentage of cells in the S and G2 phase was decreased. In addition, the percentage of early and late apoptotic cells was increased in cells treated with 15 µM celecoxib compared with the control. RT-qPCR analysis also demonstrated that the mRNA levels of lnc-SCD-1:13, lnc-PTMS-1:3, ITGA3 and DVL1 were increased following treatment with celecoxib (15 µM; P<0.05). However, there were no significant differences in the expression of COX-2 mRNA between cells treated with celecoxib (15 µM) and untreated cells. The present study demonstrated that a low dose of celecoxib may be involved in regulating cell growth independent of COX-2 in NCI-N87 cells. Furthermore, ITGA3 and/or DVL1 co-expressed with lnc-SCD-1:13 and lnc-PTMS-1:3 may be associated with the effects of treatment with a low dose of celecoxib in NCI-N87 cells.
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Affiliation(s)
- Bin Song
- Department of Gastrointestinal, Colorectal and Anal Surgery, China-Japan Union Hospital of Jilin University, Changchun, Jilin 130033, P.R. China
| | - Zhen-Bo Shu
- Department of Gastrointestinal, Colorectal and Anal Surgery, China-Japan Union Hospital of Jilin University, Changchun, Jilin 130033, P.R. China
| | - Juan Du
- Internal Medicine 2, The Tumor Hospital of Jilin, Changchun, Jilin 130012, P.R. China
| | - Ji-Chen Ren
- Internal Medicine 2, The Tumor Hospital of Jilin, Changchun, Jilin 130012, P.R. China
| | - Ye Feng
- Department of Gastrointestinal, Colorectal and Anal Surgery, China-Japan Union Hospital of Jilin University, Changchun, Jilin 130033, P.R. China
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30
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Guevara-Balcazar G, Ramirez-Sanchez I, Mera-Jimenez E, Rubio-Gayosso I, Aguilar-Najera ME, Castillo-Hernandez MC. Participation of COX-1 and COX-2 in the contractile effect of phenylephrine in prepubescent and old rats. THE KOREAN JOURNAL OF PHYSIOLOGY & PHARMACOLOGY 2017; 21:407-413. [PMID: 28706454 PMCID: PMC5507779 DOI: 10.4196/kjpp.2017.21.4.407] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Revised: 03/08/2017] [Accepted: 04/04/2017] [Indexed: 12/01/2022]
Abstract
Vascular reactivity can be influenced by the vascular region, animal age, and pathologies present. Prostaglandins (produced by COX-1 and COX-2) play an important role in the contractile response to phenylephrine in the abdominal aorta of young rats. Although these COXs are found in many tissues, their distribution and role in vascular reactivity are not clear. At a vascular level, they take part in the homeostasis functions involved in many physiological and pathologic processes (e.g., arterial pressure and inflammatory processes). The aim of this study was to analyze changes in the contractile response to phenylephrine of thoracic/abdominal aorta and the coronary artery during aging in rats. Three groups of rats were formed and sacrificed at three distinct ages: prepubescent, young and old adult. The results suggest that there is a higher participation of prostanoids in the contractile effect of phenylephrine in pre-pubescent rats, and a lower participation of the same in old rats. Contrarily, there seems to be a higher participation of prostanoids in the contractile response of the coronary artery of older than pre-pubescent rats. Considering that the changes in the expression of COX-2 were similar for the three age groups and the two tissues tested, and that expression of COX-1 is apparently greater in older rats, COX-1 and COX-2 may lose functionality in relation to their corresponding receptors during aging in rats.
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Affiliation(s)
- Gustavo Guevara-Balcazar
- Cardiovascular Pharmacology and Hyperbaric Experimental Medicine, Escuela Superior de Medicina, Instituto Politecnico Nacional, 11340 Mexico City, Mexico
| | - Israel Ramirez-Sanchez
- Cardiovascular Pharmacology and Hyperbaric Experimental Medicine, Escuela Superior de Medicina, Instituto Politecnico Nacional, 11340 Mexico City, Mexico
| | - Elvia Mera-Jimenez
- Cardiovascular Pharmacology and Hyperbaric Experimental Medicine, Escuela Superior de Medicina, Instituto Politecnico Nacional, 11340 Mexico City, Mexico
| | - Ivan Rubio-Gayosso
- Cardiovascular Pharmacology and Hyperbaric Experimental Medicine, Escuela Superior de Medicina, Instituto Politecnico Nacional, 11340 Mexico City, Mexico
| | - Maria Eugenia Aguilar-Najera
- Cardiovascular Pharmacology and Hyperbaric Experimental Medicine, Escuela Superior de Medicina, Instituto Politecnico Nacional, 11340 Mexico City, Mexico
| | - Maria C. Castillo-Hernandez
- Cardiovascular Pharmacology and Hyperbaric Experimental Medicine, Escuela Superior de Medicina, Instituto Politecnico Nacional, 11340 Mexico City, Mexico
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31
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Inan Genç A, Gok S, Banerjee S, Severcan F. Valdecoxib Recovers the Lipid Composition, Order and Dynamics in Colon Cancer Cell Lines Independent of COX-2 Expression: An ATR-FTIR Spectroscopy Study. APPLIED SPECTROSCOPY 2017; 71:105-117. [PMID: 27354402 DOI: 10.1177/0003702816654164] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Prostanoids play an important role in a variety of physiological and pathophysiological processes including inflammation and cancer. The rate-limiting step in the prostanoid biosynthesis pathway is catalyzed by cyclooxygenases (COXs). Aberrant expression of the inducible isoform COX-2 plays a significant role in colon cancer initiation and progression. In this study, we have hypothesized that COX-2 specific inhibitors such as Valdecoxib (VLX), being highly hydrophobic, may alter biophysical properties of cellular lipids. In this study, COX-2 expressing (HT29) and COX-2 non-expressing (SW620) colon cancer cell lines were treated with VLX and examined using attenuated total reflection infrared spectroscopy. The results revealed that VLX treatment decreased lipid fluidity in the cells irrespective of COX-2 expression status and affected order parameters of the lipids in both cell lines. Cluster analysis also indicated that the spectral differences between the two cell lines are profound and could be successfully differentiated. Valdecoxib treatment could enhance the composition, order and dynamics of the lipids of colon cancer cells independently of its COX-2 inhibitory mechanism. Valdecoxib has therapeutic effects upon colon cancer, therefore it can be used as an adjuvant and/or chemopreventive agent for colon cancer.
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Affiliation(s)
- Aysun Inan Genç
- Department of Biological Sciences, Middle East Technical University, Turkey
| | - Seher Gok
- Department of Biological Sciences, Middle East Technical University, Turkey
| | - Sreeparna Banerjee
- Department of Biological Sciences, Middle East Technical University, Turkey
| | - Feride Severcan
- Department of Biological Sciences, Middle East Technical University, Turkey
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32
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Palit P, Mandal SC, Bhunia B. Total steroid and terpenoid enriched fraction from Euphorbia neriifolia Linn offers protection against nociceptive-pain, inflammation, and in vitro arthritis model: An insight of mechanistic study. Int Immunopharmacol 2016; 41:106-115. [PMID: 27838586 DOI: 10.1016/j.intimp.2016.10.024] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2015] [Revised: 10/27/2016] [Accepted: 10/28/2016] [Indexed: 11/17/2022]
Abstract
The plant Euphorbia neriifolia Linn has been successfully used for the management of acute inflammatory, arthritic, nociceptive pain and relieves the asthmatic symptom as a tribal folk medicine in India. The present study was conducted to evaluate the anti-inflammatory, analgesic, anti-arthritic activity from total steroid and terpenoid rich fractions derived from hydro-alcoholic extract of Euphorbia neriifolia stem (STF-HAENS). STF-HAENS fraction demonstrated 68.58±2.5% and 75.25±5.1% protection against acetic acid-induced pain and central neuropathic pain at 80mg/kg. It also showed 98.47% protection against acute inflammation at 100mg/kg with 1.7 fold higher protective activity than the standard drug. The fraction exhibited this efficacy via inhibition of proinflammatory cytokines TNF-α, IFN-γ, IL-12 and IL-6 by 74%, 81.26%, 92.10% and 93.4% respectively at 100μg/ml. It also showed dual inhibition of cyclooxygenase (COX) and lipooxygenase (LOX) activity in a dose-dependent manner that elicited the desired pharmacological action. The fraction downregulated nitric-oxide production from lipopolysaccharide (LPS) stimulated PBMC derived macrophages. The spectrophotometric analysis reveals the STF-HAENS induced ameliorative effect against heat-induced denaturation of BSA protein and exhibited significant antiproteinase activity. Our findings suggest that STF-HAENS could be used as an effective safe therapeutic agent for treatment of nociceptive pain, acute inflammation and arthritis.
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Affiliation(s)
- Partha Palit
- Dr. B.C. Roy College of Pharmacy and A.H.S., Durgapur 71320, India; Assam University, Silchar (A Central University), Dept. of Pharmaceutical Sciences, Silchar -788011, Assam, India.
| | - Subhash C Mandal
- Pharmacognosy and Phytotherapy Research Laboratory, Division of Pharmacognosy, Department of Pharmaceutical Technology, Jadavpur University, Kolkata 700032, India
| | - Biswanath Bhunia
- National Institute of Technology, Agartala, Department of Bioengineering, Agartala, India
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33
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Bakr RB, Azouz AA, Abdellatif KRA. Synthesis, cyclooxygenase inhibition, anti-inflammatory evaluation and ulcerogenic liability of new 1-phenylpyrazolo[3,4-d]pyrimidine derivatives. J Enzyme Inhib Med Chem 2016; 31:6-12. [DOI: 10.1080/14756366.2016.1186018] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Affiliation(s)
- Rania B. Bakr
- Department of Pharmaceutical Organic Chemistry, Beni-Suef University, Beni-Suef, Egypt, and
| | - Amany A. Azouz
- Department of Pharmacology and Toxicology, Beni-Suef University, Beni-Suef, Egypt
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Khoshneviszadeh M, Shahraki O, Khoshneviszadeh M, Foroumadi A, Firuzi O, Edraki N, Nadri H, Moradi A, Shafiee A, Miri R. Structure-based design, synthesis, molecular docking study and biological evaluation of 1,2,4-triazine derivatives acting as COX/15-LOX inhibitors with anti-oxidant activities. J Enzyme Inhib Med Chem 2016; 31:1602-11. [PMID: 27028154 DOI: 10.3109/14756366.2016.1158713] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
A set of 1,2,4-triazine derivatives were designed as cyclooxygenase-2 (COX-2) inhibitors. These compounds were synthesized and screened for inhibition of cyclooxygenases (COX-1 and COX-2) based on a cellular assay using human whole blood (HWB) and lipoxygenase (LOX-15) that are key enzymes in inflammation. The results showed that 3-(2-(benzo[d][1,3]dioxol-5-ylmethylene)hydrazinyl)-5,6-bis(4-methoxyphenyl)-1,2,4-triazine (G11) was identified as the most potent COX-2 inhibitor (78%) relative to COX-1 (50%). Ferric reducing anti-oxidant power (FRAP) assay revealed that compound G10 possesses the highest anti-oxidant activity. The compound G3 with IC50 value of 124 μM was the most potent compound in LOX inhibitory assay. Molecular docking was performed and a good agreement was observed between computational and experimental results.
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Affiliation(s)
- Mehdi Khoshneviszadeh
- a Medicinal and Natural Products Chemistry Research Center, Shiraz University of Medical Sciences .,b Department of Medicinal Chemistry , Faculty of Pharmacy, Shiraz University of Medical Sciences , Shiraz , Iran
| | - Omolbanin Shahraki
- b Department of Medicinal Chemistry , Faculty of Pharmacy, Shiraz University of Medical Sciences , Shiraz , Iran
| | - Mahsima Khoshneviszadeh
- a Medicinal and Natural Products Chemistry Research Center, Shiraz University of Medical Sciences
| | - Alireza Foroumadi
- c Drug Design and Development Research Center, Tehran University of Medical Sciences , Tehran , Iran
| | - Omidreza Firuzi
- a Medicinal and Natural Products Chemistry Research Center, Shiraz University of Medical Sciences
| | - Najmeh Edraki
- a Medicinal and Natural Products Chemistry Research Center, Shiraz University of Medical Sciences
| | - Hamid Nadri
- d Department of Medicinal Chemistry , Faculty of Pharmacy, Shahid Sadoughi University of Medical Sciences , Yazd , Iran , and
| | - Alireza Moradi
- d Department of Medicinal Chemistry , Faculty of Pharmacy, Shahid Sadoughi University of Medical Sciences , Yazd , Iran , and
| | - Abbas Shafiee
- e Department of Medicinal Chemistry , Faculty of Pharmacy and Pharmaceutical Sciences Research Center, Tehran University of Medical Sciences , Tehran , Iran
| | - Ramin Miri
- a Medicinal and Natural Products Chemistry Research Center, Shiraz University of Medical Sciences
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Liu L, Zhou F, Ren S, Chen X, Li X, Li W, Zhou C. Prognostic value of cyclooxygenase-2 gene polymorphisms in advanced non-small cell lung cancer patients treated with first-line platinum-based chemotherapy. Asia Pac J Clin Oncol 2014; 12:e339-46. [PMID: 25131817 DOI: 10.1111/ajco.12258] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/15/2014] [Indexed: 01/08/2023]
Abstract
AIM Cyclooxygenase-2 (COX-2) plays an important role in cell apoptosis, angiogenesis and tumor invasion, and over-expression of COX-2 is associated with tumor development and occurrence. The aim of this study is to investigate the association between COX-2 polymorphisms and clinical outcomes in advanced non-small cell lung cancer (NSCLC) patients treated with first-line platinum-based chemotherapy. METHODS A total of 190 patients with IIIB or IV NSCLC who received platinum-based chemotherapy were recruited in this study. Four functional COX-2 polymorphisms, including rs689465, rs689466, rs3218625 and rs20417, were genotyped by PCR-based restriction fragment length polymorphism methods. Kaplan-Meier methods were used to compare survival by different genotypes. Cox proportional hazard models were used to identify independently significant variables. RESULTS The rs689465 AA genotype was significantly associated with longer overall survival (OS) (13.0 months vs 8.8 months, P = 0.019 for log-rank test; hazard ratio [HR] 0.624; 95% confidence internal [CI] 0.418-0.931) and progression-free survival (5.3 months vs 4.0 months, P = 0.018 for log-rank test; HR 0.627; 95% CI 0.421-0.934) compared with AG or GG genotype, especially in patients with adenocarcinoma (P = 0.002), performance status of 1 (P = 0.009) and stage IV disease (P = 0.012), and treated with gemcitabine-based chemotherapy (P = 0.012). Multivariate regression analysis showed that COX-2 rs689465 polymorphism had a significantly independent prognostic value for OS (P = 0.017, HR = 1.637, 95% CI = 1.093-2.453). CONCLUSION Our study suggested that rs689465 polymorphism could be a prognostic biomarker for advanced NSCLC patients treated with first-line platinum-based chemotherapy.
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Affiliation(s)
- Lu Liu
- Department of Medical Oncology, Shanghai Pulmonary Hospital, Tongji University Medical School Cancer Institute, Tongji University School of Medicine, Shanghai, China
| | - Fei Zhou
- Department of Medical Oncology, Shanghai Pulmonary Hospital, Tongji University Medical School Cancer Institute, Tongji University School of Medicine, Shanghai, China
| | - Shengxiang Ren
- Department of Medical Oncology, Shanghai Pulmonary Hospital, Tongji University Medical School Cancer Institute, Tongji University School of Medicine, Shanghai, China
| | - Xiaoxia Chen
- Department of Medical Oncology, Shanghai Pulmonary Hospital, Tongji University Medical School Cancer Institute, Tongji University School of Medicine, Shanghai, China
| | - Xuefei Li
- Department of Lung Cancer and Immunology, Shanghai Pulmonary Hospital, Tongji University Medical School Cancer Institute, Tongji University School of Medicine, Shanghai, China
| | - Wei Li
- Department of Medical Oncology, Shanghai Pulmonary Hospital, Tongji University Medical School Cancer Institute, Tongji University School of Medicine, Shanghai, China
| | - Caicun Zhou
- Department of Medical Oncology, Shanghai Pulmonary Hospital, Tongji University Medical School Cancer Institute, Tongji University School of Medicine, Shanghai, China
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Patterson WL, Georgel PT. Breaking the cycle: the role of omega-3 polyunsaturated fatty acids in inflammation-driven cancers. Biochem Cell Biol 2014; 92:321-8. [PMID: 25098909 DOI: 10.1139/bcb-2013-0127] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Chronic inflammation is a cyclical, self-stimulating process. Immune cells called to sites of inflammation release pro-inflammatory signaling molecules that stimulate activation of inducible enzymes and transcription factors. These enzymes and transcription factors then stimulate production of signaling molecules that attract more immune cells and induce more enzymatic and transcriptional activity, creating a perpetual loop of inflammation. This self-renewing pool of inflammatory stimuli makes for an ideal tumor microenvironment, and chronic inflammation has been linked to oncogenesis, tumor growth, tumor cell survival, and metastasis. Three protein pathways in particular, nuclear factor kappa B (NF-kB), cyclooxygenase (COX), and lipoxygenase (LOX), provide excellent examples of the cyclical, self-renewing nature of chronic inflammation-driven cancers. NF-kB is an inducible transcription factor responsible for the expression of a vast number of inflammation and cancer related genes. COX and LOX convert omega-6 (n-6) and omga-3 (n-3) polyunsaturated fatty acids (PUFA) into pro- and anti-inflammatory signaling molecules. These signaling molecules stimulate or repress activity of all three of these pathways. In this review, we will discuss the pro- and anti-inflammatory functions of these fatty acids and their role in chronic inflammation and cancer progression.
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Affiliation(s)
- William L Patterson
- a Byrd Biotechnology Science Center, Department of Biochemistry and Microbiology, Marshall University School of Medicine, 1700 3rd Avenue. Huntington, WV 25755, USA
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Kang HC, Kim IH, Park CI, Park SH. Immunohistochemical analysis of cyclooxygenase-2 and brain fatty acid binding protein expression in grades I-II meningiomas: correlation with tumor grade and clinical outcome after radiotherapy. Neuropathology 2014; 34:446-54. [PMID: 24779988 DOI: 10.1111/neup.12128] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2014] [Revised: 04/04/2014] [Accepted: 04/06/2014] [Indexed: 11/27/2022]
Abstract
This study was done to evaluate the association of cyclooxygenase 2 (COX-2) and brain fatty acid binding protein (BFABP) with tumor grade and outcome of grades I-II meningiomas treated with radiotherapy. From 1996 to 2008, 40 patients with intracranial grades I-II meningiomas were treated with radiotherapy. Immunohistochemical staining for COX-2 and BFABP were performed on formalin-fixed paraffin-embedded tissues. COX-2 expression was significantly associated with BFABP status and both COX-2 (P < 0.01) and BFABP (P = 0.01) expression were stronger in the grade II meningiomas than in grade I tumors. Among the clinicopathologic factors, age and COX-2 status were prognostic in progression-free survival. Patients with moderate or strong COX-2 expression had worse outcome than those with negative or weak COX-2 expression (P = 0.03) after controlling for potential confounders. Our results suggest that the molecular biomarker COX-2 has prognostic significance in intracranial grades I-II meningiomas following radiotherapy.
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Affiliation(s)
- Hyun-Cheol Kang
- Department of Radiation Oncology, Seoul National University College of Medicine, Seoul, Korea; Department of Radiation Oncology, Dongnam Institute of Radiological and Medical Sciences, Busan, Korea
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Pathak C, Ranjan Singh R, Yadav S, Kapoor N, Raina V, Gupta S, Surolia A. Evaluation of benzothiophene carboxamides as analgesics and anti-inflammatory agents. IUBMB Life 2014; 66:201-211. [DOI: 10.1002/iub.1252] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2013] [Revised: 02/06/2014] [Accepted: 02/12/2014] [Indexed: 11/11/2022]
Affiliation(s)
- Chandramani Pathak
- Molecular Sciences Lab; National Institute of Immunology; Aruna Asaf Ali Marg New Delhi India
| | - Rajiv Ranjan Singh
- Molecular Sciences Lab; National Institute of Immunology; Aruna Asaf Ali Marg New Delhi India
| | - Saurabh Yadav
- Molecular Sciences Lab; National Institute of Immunology; Aruna Asaf Ali Marg New Delhi India
- Molecular Biophysics Unit; Indian Institute of Science; Bangalore Karnataka India
| | - Neha Kapoor
- Molecular Sciences Lab; National Institute of Immunology; Aruna Asaf Ali Marg New Delhi India
| | - Varshiesh Raina
- Molecular Sciences Lab; National Institute of Immunology; Aruna Asaf Ali Marg New Delhi India
| | - Sarika Gupta
- Molecular Sciences Lab; National Institute of Immunology; Aruna Asaf Ali Marg New Delhi India
| | - Avadhesha Surolia
- Molecular Sciences Lab; National Institute of Immunology; Aruna Asaf Ali Marg New Delhi India
- Molecular Biophysics Unit; Indian Institute of Science; Bangalore Karnataka India
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Végner L, Peragovics Á, Tombor L, Jelinek B, Czobor P, Bender A, Simon Z, Málnási-Csizmadia A. Experimental confirmation of new drug-target interactions predicted by Drug Profile Matching. J Med Chem 2013; 56:8377-88. [PMID: 24088053 DOI: 10.1021/jm400813y] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
We recently introduced Drug Profile Matching (DPM), a novel affinity fingerprinting-based in silico drug repositioning approach. DPM is able to quantitatively predict the complete effect profiles of compounds via probability scores. In the present work, in order to investigate the predictive power of DPM, three effect categories, namely, angiotensin-converting enzyme inhibitor, cyclooxygenase inhibitor, and dopamine agent, were selected and predictions were verified by literature analysis as well as experimentally. A total of 72% of the newly predicted and tested dopaminergic compounds were confirmed by tests on D1 and D2 expressing cell cultures. 33% and 23% of the ACE and COX inhibitory predictions were confirmed by in vitro tests, respectively. Dose-dependent inhibition curves were measured for seven drugs, and their inhibitory constants (Ki) were determined. Our study overall demonstrates that DPM is an effective approach to reveal novel drug-target pairs that may result in repositioning these drugs.
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Affiliation(s)
- László Végner
- Department of Biochemistry, Institute of Biology, Eötvös Loránd University , Pázmány Péter sétány 1/C, H-1117 Budapest, Hungary
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Jermany J, Branson J, Schmouder R, Guillaume M, Rordorf C. Lumiracoxib Does Not Affect the Ex Vivo Antiplatelet Aggregation Activity of Low-Dose Aspirin in Healthy Subjects. J Clin Pharmacol 2013; 45:1172-8. [PMID: 16172182 DOI: 10.1177/0091270005280377] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
This randomized, double-blind, placebo-controlled study evaluated the pharmacodynamic effects of concomitant low-dose aspirin and lumiracoxib in healthy subjects. Participants received lumiracoxib 400 mg once daily (n = 14) or placebo (n = 14) for 11 days, with concomitant low-dose aspirin (75 mg once daily) from days 5 to 11. Ex vivo pharmacodynamic assessments included assays of platelet aggregation and urinary thromboxane and prostacyclin metabolite profile. Arachidonic acid-stimulated platelet aggregation was reduced from 76.3% on day 4 to 4.8% on day 11 in the placebo group and from 75.8% on day 4 to 5.1% on day 11 in the lumiracoxib group. Collagen-induced platelet aggregation was reduced from 77.5% on day 4 to 52.8% on day 11 in the placebo group and from 79.5% on day 4 to 55.9% on day 11 in the lumiracoxib group. Urinary thromboxane and prostacyclin were unaffected by lumiracoxib. In conclusion, concomitant lumiracoxib did not interfere with the cyclooxygenase-1-mediated antiplatelet effects of low-dose aspirin.
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Affiliation(s)
- J Jermany
- Exploratory Clinical Development, Novartis Pharma AG, WSJ-103-4 D, CH-4002 Basel, Switzerland
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Heravi Moussavi A, Butler WR, Bauman DE, Gilbert RO. Effects of conjugated linoleic acids on prostaglandin secretion by bovine endometrial epithelial cells in vitro. Am J Vet Res 2013; 74:491-8. [DOI: 10.2460/ajvr.74.3.491] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Shao N, Feng N, Wang Y, Mi Y, Li T, Hua L. Systematic review and meta-analysis of COX-2 expression and polymorphisms in prostate cancer. Mol Biol Rep 2012; 39:10997-1004. [PMID: 23053989 DOI: 10.1007/s11033-012-2001-5] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2012] [Accepted: 10/01/2012] [Indexed: 12/18/2022]
Abstract
Evidence is accumulating that cyclooxygenase-2 (COX-2) may play an important role in prostate cancer (PCa). Recently, gene polymorphisms in COX-2 have been implicated to alter the risk of PCa and overexpression of COX-2 may be associated with clinical and prognostic significance in PCa. However, the results of these studies are inconclusive or controversial. To derive a more precise estimation of the relationships, we performed an updated meta-analysis. A comprehensive search was conducted to examine all the eligible studies of COX-2 polymorphism and expression in PCa. We used odds ratios (ORs) to assess the strength of the association and the 95 % confidence intervals (CIs) give a sense of the precision of the estimate. Overall, no significant associations between COX-2 polymorphism and PCa risk were found. However, high expression of COX-2 was significantly higher in T3-T4 stages of PCa than in T1-T2 stages of PCa (OR = 2.33, 95 %CI: 1.54-3.53, P < 0.0001). COX-2 might play an important role in the progress of PCa, overexpression of COX-2 correlates with T3-T4 stages of PCa. COX-2 might be a potential therapy target for PCa and work as a prognostic factor for PCa patients.
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Affiliation(s)
- Ning Shao
- Department of Urology, Jiangsu Province Geriatric Hospital, 65 Jiangsu Road, Nanjing, 210024, China
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Brentnall C, Cheng Z, McKellar QA, Lees P. Potency and selectivity of carprofen enantiomers for inhibition of bovine cyclooxygenase in whole blood assays. Res Vet Sci 2012; 93:1387-92. [PMID: 22703724 DOI: 10.1016/j.rvsc.2012.05.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2012] [Revised: 04/25/2012] [Accepted: 05/08/2012] [Indexed: 02/02/2023]
Abstract
Whole blood in vitro assays were used to determine the potency and selectivity of carprofen enantiomers for inhibition of the isoforms of cyclooxygenase (COX), COX-1 and COX-2, in the calf. S(+)-carprofen possessed preferential activity for COX-2 inhibition but, because the slopes of inhibition curves differed, the COX-1:COX-2 inhibition ratio decreased from 9.04:1 for inhibitory concentration (IC)10 to 1.84:1 for IC95. R(-) carprofen inhibited COX-2 preferentially only for low inhibition of the COX isoforms (IC10 COX-1:COX-2=6.63:1), whereas inhibition was preferential for COX-1 for a high level of inhibition (IC95 COX-1:COX-2=0.20:1). S(+) carprofen was the more potent inhibitor of COX isoforms; potency ratios S(+):R(-) carprofen were 11.6:1 for IC10 and 218:1 for IC90. Based on serum concentrations of carprofen enantiomers obtained after administration of a therapeutic dose of 1.4 mg/kg to calves subcutaneously, S(+)-carprofen concentrations exceeded the in vitro IC80 COX-2 value for 32 h and the IC20 for COX-1 for 33 h. The findings are discussed in relation to efficacy and safety of carprofen in calves.
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Affiliation(s)
- Claire Brentnall
- The Royal Veterinary College, Hawkshead Lane, Hatfield, Hertfordshire AL9 7TA, United Kingdom
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Edfawy M, Hassan MH, Mansour A, Hamed AA, Amin HAA. Meloxicam Modulates Oxidative Stress Status, Inhibits Prostaglandin E2, and Abrogates Apoptosis in Carbon Tetrachloride–Induced Rat Hepatic Injury. Int J Toxicol 2012; 31:276-86. [DOI: 10.1177/1091581812442939] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The current study aimed at investigating the potential hepatoprotective property and mechanism of meloxicam (MEL) against carbon tetrachloride (CCl4)-induced hepatocellular damage in rats. Subcutaneous administration of CCl4 (2 mL/kg, twice/week for 8 weeks) induced hepatocellular damage substantiated by hematoxylin and eosin staining and significant elevation in serum aspartate transaminase, alanine transaminase, and total bilirubin. In addition, CCL4 treatment led to elevation in liver contents of lipid peroxidation marker (malondialdehyde), prostaglandin E2, active caspase 3, and Terminal deoxynucleotidyl transferase dUTP nick end labeling–positive cells and reduction in the activities of superoxide dismutase, catalase, glutathione- S-transferase, and reduced glutathione in the liver tissue. Prior oral treatment with MEL (5 mg/kg, twice/week) retained the normal liver histology and significantly restored all of these parameters close to normal values. These results demonstrated the hepatoprotective utility of MEL against the CCl4-induced liver injury which might ascribe to its antioxidant, free radical scavenging, antiapoptotic and anti-inflammatory effects.
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Affiliation(s)
- Mohamed Edfawy
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Egyptian Russian University, Cairo, Egypt
| | - Memy H. Hassan
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Al-Azahr University, Cairo, Egypt
- Department of Pharmacy, Faculty of Medical Rehabilitation Sciences, Taibah University, Kingdom of Saudi Arabia
| | - Ahmed Mansour
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Al-Azahr University, Cairo, Egypt
| | - Abdel-Aziz Hamed
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Al-Azahr University, Cairo, Egypt
| | - Hebat Allah A. Amin
- Department of Pathology, Medico legal Administration, Ministry of Justice, Cairo, Egypt
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Hegde P, Maddur MS, Friboulet A, Bayry J, Kaveri SV. Viscum album exerts anti-inflammatory effect by selectively inhibiting cytokine-induced expression of cyclooxygenase-2. PLoS One 2011; 6:e26312. [PMID: 22028854 PMCID: PMC3196571 DOI: 10.1371/journal.pone.0026312] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2011] [Accepted: 09/23/2011] [Indexed: 12/18/2022] Open
Abstract
Viscum album (VA) preparations are extensively used as complementary therapy in cancer and are shown to exert anti-tumor activities which involve the cytotoxic properties, induction of apoptosis, inhibition of angiogenesis and several other immunomodulatory mechanisms. In addition to their application in cancer therapy, VA preparations have also been successfully utilized in the treatment of several inflammatory pathologies. Owing to the intricate association of inflammation and cancer and in view of the fact that several anti-tumor phytotherapeutics also exert a potent anti-inflammatory effect, we hypothesized that VA exerts an anti-inflammatory effect that is responsible for its therapeutic benefit. Since, inflammatory cytokine-induced cyclo-oxygenase-2 (COX-2) and prostaglandin E2 (PGE2) play a critical role in the pathogenesis of inflammatory diseases, we investigated the anti-inflammatory effect of VA on regulation of cyclo-oxygenase expression and PGE2 biosynthesis by using human lung adenocarcinoma cells (A549 cells) as a model. A549 cells were stimulated with IL-1β and treated with VA preparation (VA Qu Spez) for 18 hours. PGE2 was analysed in the culture supernatants by enzyme immunoassay. Expression of COX-2 and COX-1 proteins was analyzed by immunoblotting and the expression of COX-2 mRNA was assessed by semi-quantitative RT-PCR. We found that VA Qu Spez inhibit the secretion of IL-1β-induced PGE2 in a dose-dependent manner. Further, we also show that this inhibitory action was associated with a reduced expression of COX-2 without modulating the COX-1 expression. Together these results demonstrate a novel anti-inflammatory mechanism of action of VA preparations wherein VA exerts an anti-inflammatory effect by inhibiting cytokine-induced PGE2 via selective inhibition of COX-2.
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Affiliation(s)
- Pushpa Hegde
- Institut National de la Santé et de la Recherche Médicale, Unité 872, Paris, France
- Université de Technologie de Compiègne, Compiègne, France
| | - Mohan S. Maddur
- Institut National de la Santé et de la Recherche Médicale, Unité 872, Paris, France
- Centre de Recherche des Cordeliers, Equipe 16- Immunopathology and Therapeutic Immunointervention, Université Pierre et Marie Curie – Paris 6, UMR S 872, Paris, France
- Université Paris Descartes, UMR S 872, Paris, France
| | - Alain Friboulet
- Université de Technologie de Compiègne, UMR CNRS 6022, Compiègne, France
| | - Jagadeesh Bayry
- Institut National de la Santé et de la Recherche Médicale, Unité 872, Paris, France
- Centre de Recherche des Cordeliers, Equipe 16- Immunopathology and Therapeutic Immunointervention, Université Pierre et Marie Curie – Paris 6, UMR S 872, Paris, France
- Université Paris Descartes, UMR S 872, Paris, France
| | - Srini V. Kaveri
- Institut National de la Santé et de la Recherche Médicale, Unité 872, Paris, France
- Centre de Recherche des Cordeliers, Equipe 16- Immunopathology and Therapeutic Immunointervention, Université Pierre et Marie Curie – Paris 6, UMR S 872, Paris, France
- Université Paris Descartes, UMR S 872, Paris, France
- * E-mail:
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Understanding the role of inflammatory-related pathways in the pathophysiology and treatment of psychiatric disorders: evidence from human peripheral studies and CNS studies. Int J Neuropsychopharmacol 2011; 14:997-1012. [PMID: 21156092 DOI: 10.1017/s1461145710001410] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Many lines of evidence now support the hypothesis that inflammation-related pathways are involved in the pathophysiology of psychiatric disorders. Much of the data underpinning this hypothesis has come from the study of inflammation-related proteins in blood of individuals with mood disorders and schizophrenia. Significantly, recent data have emerged to suggest that changes in inflammation-related pathways are present in the CNS of subjects with psychiatric disorders. It is therefore timely to overview how such data, plus data on the role of inflammation-related proteins in CNS function, is contributing to understanding the pathophysiology of mood disorders and schizophrenia. In addition, it has been suggested that antidepressants, mood stabilizers and antipsychotic drugs act on inflammation-related pathways and therefore measuring levels of inflammation-related proteins in blood may be useful in monitoring treatment responsiveness. Despite these important neuropsychopharmacological discoveries, there is no clear understanding as to how inflammatory-related pathways can precipitate the onset of psychiatric symptoms. This review will focus on data suggesting that acute-reactive proteins and cytokines are affected by the pathophysiology of mood disorders and schizophrenia, that levels of blood inflammation-related proteins before and after treatment might be useful in the diagnosis of psychiatric disorders or measuring responsiveness to drug treatment. Finally, it will be postulated how changes in these proteins affect CNS function to cause psychiatric disorders.
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Synthesis and biological evaluation of novel series of chalcone derivatives as inhibitors of cyclooxygenase and LPS-induced TNF-α with potent antioxidant properties. Med Chem Res 2011. [DOI: 10.1007/s00044-011-9746-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Lu Y, Jin M, Park SJ, Son KH, Son JK, Chang HW. Batatasin I, a Naturally Occurring Phenanthrene Derivative, Isolated from Tuberous Roots of Dioscorea batatas Suppresses Eicosanoids Generation and Degranulation in Bone Marrow Derived-Mast Cells. Biol Pharm Bull 2011; 34:1021-5. [DOI: 10.1248/bpb.34.1021] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Yue Lu
- College of Pharmacy, Yeungnam University
| | - Meihua Jin
- College of Pharmacy, Yeungnam University
| | - Sang-Jo Park
- Institute for Natural Products Research, Gyeongsangbuk-do Agricultural Research & Extension Services
| | - Kun Ho Son
- Department of Food Science and Nutrition, Andong National University
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SCHMID V, SEEWALD W, LEES P, KING J. In vitro and ex vivo inhibition of COX isoforms by robenacoxib in the cat: a comparative study. J Vet Pharmacol Ther 2010; 33:444-52. [DOI: 10.1111/j.1365-2885.2010.01166.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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50
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Belshaw Z, Constantio-Casas F, Brearley MJ, Dunning MD, Holmes MA, Dobson JM. COX-2 expression and outcome in canine nasal carcinomas treated with hypofractionated radiotherapy. Vet Comp Oncol 2010; 9:141-8. [PMID: 21569199 DOI: 10.1111/j.1476-5829.2010.00243.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The expression of cyclooxygenase isoform 2 (COX-2) in canine nasal carcinomas has been well documented. COX-2 expression has proven to be a prognostic factor in several human tumours. The aims of this study were to assess the correlation between immunohistochemical COX-2 expression and prognosis using rhinoscopic biopsies from 42 dogs with nasal carcinomas treated with hypofractionated radiotherapy, and to establish a replicable COX-2 scoring system. Ninety per cent of sections evaluated were COX-2 positive with a mean score of 6.6 (median 8.0; range 0-12). Neither COX-2 expression nor tumour type had a significant correlation with survival. There are likely to be many as yet unidentified variants which contribute to length of survival in dogs with nasal carcinomas. Immunohistochemical COX-2 expression appears unlikely to be of prognostic significance for canine nasal carcinoma.
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Affiliation(s)
- Z Belshaw
- Queen's Veterinary School Hospital, University of Cambridge, Cambridge, UK.
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