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Involvement of opioid receptors in the systemic and peripheral antinociceptive actions of montelukast in the animal models of pain. Eur J Pharmacol 2016; 779:38-45. [DOI: 10.1016/j.ejphar.2016.03.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2015] [Revised: 03/02/2016] [Accepted: 03/02/2016] [Indexed: 11/21/2022]
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Zhang W, Zhang X, González-Cobos JC, Stolwijk JA, Matrougui K, Trebak M. Leukotriene-C4 synthase, a critical enzyme in the activation of store-independent Orai1/Orai3 channels, is required for neointimal hyperplasia. J Biol Chem 2014; 290:5015-5027. [PMID: 25540197 DOI: 10.1074/jbc.m114.625822] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Leukotriene-C4 synthase (LTC4S) generates LTC4 from arachidonic acid metabolism. LTC4 is a proinflammatory factor that acts on plasma membrane cysteinyl leukotriene receptors. Recently, however, we showed that LTC4 was also a cytosolic second messenger that activated store-independent LTC4-regulated Ca(2+) (LRC) channels encoded by Orai1/Orai3 heteromultimers in vascular smooth muscle cells (VSMCs). We showed that Orai3 and LRC currents were up-regulated in medial and neointimal VSMCs after vascular injury and that Orai3 knockdown inhibited LRC currents and neointimal hyperplasia. However, the role of LTC4S in neointima formation remains unknown. Here we show that LTC4S knockdown inhibited LRC currents in VSMCs. We performed in vivo experiments where rat left carotid arteries were injured using balloon angioplasty to cause neointimal hyperplasia. Neointima formation was associated with up-regulation of LTC4S protein expression in VSMCs. Inhibition of LTC4S expression in injured carotids by lentiviral particles encoding shRNA inhibited neointima formation and inward and outward vessel remodeling. LRC current activation did not cause nuclear factor for activated T cells (NFAT) nuclear translocation in VSMCs. Surprisingly, knockdown of either LTC4S or Orai3 yielded more robust and sustained Akt1 and Akt2 phosphorylation on Ser-473/Ser-474 upon serum stimulation. LTC4S and Orai3 knockdown inhibited VSMC migration in vitro with no effect on proliferation. Akt activity was suppressed in neointimal and medial VSMCs from injured vessels at 2 weeks postinjury but was restored when the up-regulation of either LTC4S or Orai3 was prevented by shRNA. We conclude that LTC4S and Orai3 altered Akt signaling to promote VSMC migration and neointima formation.
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Affiliation(s)
- Wei Zhang
- From the The State University of New York College of Nanoscale Science and Engineering, Albany, New York 12203,; Center for Cardiovascular Sciences, Albany Medical College, Albany, New York 12208, and
| | - Xuexin Zhang
- From the The State University of New York College of Nanoscale Science and Engineering, Albany, New York 12203
| | - José C González-Cobos
- From the The State University of New York College of Nanoscale Science and Engineering, Albany, New York 12203,; Center for Cardiovascular Sciences, Albany Medical College, Albany, New York 12208, and
| | - Judith A Stolwijk
- From the The State University of New York College of Nanoscale Science and Engineering, Albany, New York 12203
| | - Khalid Matrougui
- Department of Physiological Sciences, East Virginia Medical School, Norfolk, Virginia 23507
| | - Mohamed Trebak
- From the The State University of New York College of Nanoscale Science and Engineering, Albany, New York 12203,; Center for Cardiovascular Sciences, Albany Medical College, Albany, New York 12208, and.
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Ro M, Kim S, Pyun JA, Shin C, Cho NH, Lee JY, Koh I, Kwack K. Association between arachidonate 5-lipoxygenase-activating protein (ALOX5AP) and lung function in a Korean population. Scand J Immunol 2012; 76:151-7. [PMID: 22537113 DOI: 10.1111/j.1365-3083.2012.02712.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Arachidonate 5-lipoxygenase-activating protein (ALOX5AP) plays a role in the 5-lipoxygenase (LO) pathway, which includes the LTC(4), LTD(4), LTE(4) and LTB(4). These leukotrienes are known causative factors of asthma, allergy, atopy and cardiovascular diseases. ALOX5AP lacks enzyme activity and acts by helping 5-LO function. In this study, healthy and general subjects who live in rural and urban areas of Korea were tested for the association of ALOX5AP polymorphisms with lung function. Lung function was also estimated by calculating the predicted values for forced expiratory volume in one second (FEV(1) _%PRED) and the proportion of the forced vital capacity exhaled in the first second (FEV(1) /FVC_PRED). The linear regression was adjusted for residence area, gender, age, height and smoking status. The analysis revealed associations between FEV(1) and the single-nucleotide polymorphism (SNP) rs9506352 and the haplotype TCAC (permuted P-value < 0.05). The linkage disequilibrium block that included the significant SNPs overlapped with SNPs that were revealed previously to associate with myocardial infarction and asthma and to affect lung function. This study is the first to demonstrate the association between lung function and ALOX5AP polymorphisms in a healthy and general population.
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Affiliation(s)
- M Ro
- Department of Biomedical Science, College of Life Science, CHA University, Seongnam, South Korea
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Hartiala J, Gilliam E, Vikman S, Campos H, Allayee H. Association of PLA2G4A with myocardial infarction is modulated by dietary PUFAs. Am J Clin Nutr 2012; 95:959-65. [PMID: 22378731 PMCID: PMC3302367 DOI: 10.3945/ajcn.111.032094] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Leukotrienes are proinflammatory molecules derived from dietary PUFAs and have been associated with cardiovascular disease (CVD). We previously reported that an A→G variant (rs12746200) of the cytosolic phospholipase A2 group IVA gene (PLA2G4A), which encodes the enzyme that liberates PUFAs from cellular membranes for leukotriene synthesis, decreases the risk of CVD. OBJECTIVE We sought to replicate these initial observations with a more clinically relevant phenotype, such as myocardial infarction (MI), and to determine whether dietary PUFAs mediate this association. DESIGN In a Costa Rican case-control data set (n = 3971), rs12746200 was genotyped and was tested for an association with MI. Functional experiments were carried out to determine whether rs12746200 led to differences in mRNA expression. RESULTS Risk of MI was significantly lower in AG/GG subjects than in AA homozygotes (OR: 0.86; 95% CI: 0.75, 0.99; P = 0.040). The reduced risk of MI was observed primarily in AG/GG subjects who were above the median for intake of dietary omega-6 (n-6) PUFAs (OR: 0.71; 95% CI: 0.59, 0.87; P-interaction = 0.005). A similar analysis with dietary omega-3 (n-3) PUFAs did not show a statistically significant nutrigenetic association (P-interaction = 0.23). Functional analysis in human aortic endothelial cells showed that the carriers of the G allele had significantly lower PLA2G4A gene expression (P = 0.014), consistent with the atheroprotective association of this variant. CONCLUSION These results replicate the association of rs12746200 with CVD phenotypes and provide evidence that the protective association of this functional PLA2G4A variant is mediated by dietary PUFAs.
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Affiliation(s)
- Jaana Hartiala
- Department of Preventive Medicine, the University of Southern California Keck School of Medicine, Los Angeles, CA, USA
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Ameliorative potential of montelukast on ischemia-reperfusion injury induced vasculitic neuropathic pain in rat. Life Sci 2012; 90:755-62. [PMID: 22483690 DOI: 10.1016/j.lfs.2012.03.010] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2011] [Revised: 03/05/2012] [Accepted: 03/16/2012] [Indexed: 11/20/2022]
Abstract
AIMS Ischemia-reperfusion (I/R) event in vascular and nervous system has been documented to rising ischemic and vasculitic neuropathic pain, clinically resembles the complex regional pain syndrome (CRPS). The present study evaluated the effect of montelukast, a cysteinyl leukotriene receptor (Cys-LTC(4) and Cys-LTD(4)) antagonist on ischemia -reperfusion (I/R) induced vasculitic neuropathic pain in rats. MAIN METHODS Behavioral parameters were assessed at different time intervals (i.e. 0, 1, 7, 14 and 21st day) and biochemical analysis in sciatic nerve tissue samples were also performed along with histopathological studies. KEY FINDINGS Behavioral pain assessment has shown increase in paw and tail withdrawal threshold in montelukast treated groups against thermal and mechanical stimuli as compared to I/R control group. We observed a decrease in the total calcium, thiobarbituric acid reactive substance (TBARS) and myeloperoxidase (MPO) activity levels, whereas there is rise in reduced glutathione level in montelukast treated groups as compared to I/R control group. However, significant behavioral and biochemical results were observed only in medium and high dose of treated groups which were comparable to normal control group. Moreover, histopathological study has revealed the reduction of I/R induced neuronal edema and axonal degeneration due to montelukast. SIGNIFICANCE Montelukast has ameliorated I/R induced vasculitic neuropathic pain, these effects may be due to inhibition of lipid peroxidation, reduction of oxidative stress, release of inflammatory mediators and neuroprotective actions. Hence, it could be used as a novel therapeutic agent for the management of vasculitic inflammation related neuropathic pain.
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Capra V, Bäck M, Barbieri SS, Camera M, Tremoli E, Rovati GE. Eicosanoids and Their Drugs in Cardiovascular Diseases: Focus on Atherosclerosis and Stroke. Med Res Rev 2012; 33:364-438. [DOI: 10.1002/med.21251] [Citation(s) in RCA: 81] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Valérie Capra
- Department of Pharmacological Sciences; University of Milan; Via Balzaretti 9 20133 Milan Italy
| | - Magnus Bäck
- Department of Cardiology and Center for Molecular Medicine; Karolinska University Hospital; Stockholm Sweden
| | | | - Marina Camera
- Department of Pharmacological Sciences; University of Milan; Via Balzaretti 9 20133 Milan Italy
- Centro Cardiologico Monzino; I.R.C.C.S Milan Italy
| | - Elena Tremoli
- Department of Pharmacological Sciences; University of Milan; Via Balzaretti 9 20133 Milan Italy
- Centro Cardiologico Monzino; I.R.C.C.S Milan Italy
| | - G. Enrico Rovati
- Department of Pharmacological Sciences; University of Milan; Via Balzaretti 9 20133 Milan Italy
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Influence of Chlorella powder intake during swimming stress in mice. Biochem Biophys Res Commun 2011; 404:121-6. [DOI: 10.1016/j.bbrc.2010.11.078] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2010] [Accepted: 11/17/2010] [Indexed: 11/22/2022]
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Freiberg JJ, Tybjaerg-Hansen A, Nordestgaard BG. Novel mutations in leukotriene C4 synthase and risk of cardiovascular disease based on genotypes from 50,000 individuals. J Thromb Haemost 2010; 8:1694-701. [PMID: 20456754 DOI: 10.1111/j.1538-7836.2010.03903.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND Atherosclerosis is an inflammatory condition where cysteinyl leukotrienes have been identified to play an important role. Furthermore, cysteinyl leukotrienes may also affect thrombus formation. Using prospective, cross-sectional and case-control designs, we tested the hypothesis that hitherto unknown genetic variation, likely to affect the function of leukotriene C(4) synthase, is associated with risk of venous thromboembolism, ischemic stroke and myocardial infarction. METHODS AND RESULTS Resequencing the gene coding for leukotriene C(4) synthase in an extreme risk population with more than 1500 individuals revealed 17 new mutations, of which four are likely to change protein function (211G>A (minor allele frequency, 0.0001), IVS3 + 1G>A (0.002), 374G>A (0.0006) and 451_453+10del (0.0007)). Based on genotyping 50,000 individuals, age and sex adjusted odds ratios for venous thromboembolism were 2.0 (95% CI, 1.3-3.5) for IVS3+1G>A heterozygotes vs. wild type, and 1.9 (1.5-2.7) for any mutation heterozygote vs. wild type. Corresponding values were 2.0 (1.3-3.2) and 1.5 (1.1-2.1) for ischemic stroke, and 1.0 (0.8-1.3) and 1.2 (1.0-1.4) for myocardial infarction. CONCLUSIONS Four novel mutations that are likely to change the function of leukotriene C(4) synthase were associated with increased risk of venous thromboembolism and ischemic stroke. These findings need confirmation in other independent studies. In addition, the mechanism behind these findings deserves further investigation.
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Affiliation(s)
- J J Freiberg
- Department of Clinical Biochemistry, Herlev Hospital, Copenhagen University Hospital, Copenhagen, Denmark
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Muthuraman A, Sood S. Antisecretory, antioxidative and antiapoptotic effects of montelukast on pyloric ligation and water immersion stress induced peptic ulcer in rat. Prostaglandins Leukot Essent Fatty Acids 2010; 83:55-60. [PMID: 20153621 DOI: 10.1016/j.plefa.2010.01.003] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2009] [Revised: 11/08/2009] [Accepted: 01/13/2010] [Indexed: 11/23/2022]
Abstract
In the present study, we tried to explore the mechanism of montelukast as an antiulcerogenic agent in pyloric ligation (PL) and water immersion stress (WIS) induced peptic ulcer. The ameliorative effects of montelukast (5, 10, and 20 mg/kg, p.o.) on gastric volume and total acidity were studied in PL model. We have investigated the alteration in the ulcerative index, thiobarbituric acid reactive substances, reduced glutathione, activity of myeloperoxidase, and total calcium level in both models. Estimation of DNA fragmentation by gel electrophoresis was also performed. Medium and higher doses of montelukast showed significant (p<0.05) ameliorative potential on all the above parameters as compared with omeprazole treated group. DNA fragmentation pattern clearly indicated the antiapoptotic effect of montelukast in preventing mucosal erosion in both models. Hence, the gastroprotective effect of montelukast may be attributed to its antisecretory, antioxidative along with its antiapoptotic effect.
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Affiliation(s)
- Arunachalam Muthuraman
- Rayat Institute of Pharmacy, Nawanshahr District, Railmajra, Near Ropar, Punjab 144533, India.
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Current world literature. Curr Opin Allergy Clin Immunol 2010; 10:87-92. [PMID: 20026987 DOI: 10.1097/aci.0b013e3283355458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Hersberger M. Potential role of the lipoxygenase derived lipid mediators in atherosclerosis: leukotrienes, lipoxins and resolvins. Clin Chem Lab Med 2010; 48:1063-73. [DOI: 10.1515/cclm.2010.212] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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Allayee H, Roth N, Hodis HN. Polyunsaturated fatty acids and cardiovascular disease: implications for nutrigenetics. JOURNAL OF NUTRIGENETICS AND NUTRIGENOMICS 2009; 2:140-8. [PMID: 19776641 DOI: 10.1159/000235562] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Cardiovascular disease (CVD) arises as a result of genetic predisposition in the context of a disease-promoting environment. While several risk factors have been identified for CVD, such as elevated serum lipid levels and hypertension, most of the genes identified thus far do not appear to involve such 'conventional' risk factors. Moreover, the interactions between genes and environment, such as a diet high in certain fats, adds another level of complexity to CVD and renders identification of the underlying genetic factors even more difficult. Polyunsaturated fatty acids (PUFAs), such as the omega-6 and omega-3 fatty acids, which have multiple roles in membrane structure, lipid metabolism, blood clotting, blood pressure, and, in particular, inflammation, have been linked to the reduction in CVD. Linoleic (omega-6) and alpha-linolenic acid (omega-3) are essential fatty acids that can be converted into long-chain PUFAs, such as arachidonic acid (AA) and eicosapentaenoic acid (EPA)/docosahexaenoic acid (DHA), respectively. These long-chain PUFAs are metabolized by enzymatically catalyzed systems via cyclooxygenases and lipoxygenases. The 5-lipoxygenase (5-LO)/leukotriene (LT) biosynthesis pathway has been biochemically and genetically associated with CVD traits in mice and humans, particularly in the context of dietary AA and EPA/DHA. In this review, we summarize the biochemical metabolism of omega-3 and omega-6 PUFAs, evaluate the evidence for genetic and nutrigenetic contributions of 5-LO pathway genes to CVD, and discuss the potential of future studies that could identify other gene-dietary interactions between PUFAs and CVD traits.
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Affiliation(s)
- Hooman Allayee
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California, 2250 Alcazar Street, Los Angeles, CA 90033, USA.
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