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Zhou W, Guo J, Li Y, Ma X, Yang S, Wei J, Zhang H, Zhang S, Jin T. Genetic polymorphisms of pharmacogenomic VIP variants in the Hui population from Ningxia Province of China. Funct Integr Genomics 2023; 23:85. [PMID: 36930384 DOI: 10.1007/s10142-023-01021-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 03/08/2023] [Accepted: 03/09/2023] [Indexed: 03/18/2023]
Abstract
Pharmacogenomics has been widely used to study the very important pharmacogenetic (VIP) variants among different populations. However, there is little pharmacogenomic information about the Chinese Hui population. Our research aimed to reveal the outstandingly different loci in the Hui population, and provide a theoretical foundation for personalized drug use in the Hui population, so as to facilitate more effective treatment of diseases. This study genotyped 53 VIP variants of 26 genes in 200 independent Hui individuals based on the Pharmacogenetics and Pharmacogenomics Knowledge Base (PharmGKB). Remarkable differences in the genotype and allele frequencies between the Hui and 26 other populations from the 1000 Genomes Project were assessed using the χ2 test. The genotype and allele frequencies of single nucleotide polymorphisms (SNPs) in PTGS2 (rs20417), NAT2 (rs1801280), NAT2 (rs1208), ACE (rs4291), and CYP2D6 (rs1065852) were considerably different in the Hui population compared with those in the other 26 populations. Besides, using the PharmGKB database, we identified several VIP variants that may alter the drug metabolism of ibuprofen, rofecoxib (PTGS2), captopril (ACE), citalopram, and escitalopram (CYP2D6). We also discovered other variants associated with adverse reactions to cisplatin and cyclophosphamide (NAT2). Our study indicated that the loci of PTGS2 (rs20417), NAT2 (rs1801280 and rs1208), ACE (rs4291), and CYP2D6 (rs1065852) in the Hui population were obviously different from those in the other 26 populations, which provides reliable information for predicting drug efficacy. Besides, it supplements the pharmacogenomic knowledge of the Hui population and lays the foundation for the individualized treatment for the Hui population.
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Affiliation(s)
- Wenqian Zhou
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, School of Life Sciences, Northwest University, Xi'an, 710069, Shaanxi, China
- College of Life Science, Northwest University, Xi'an, 710127, Shaanxi, China
- Shaanxi Provincial Key Laboratory of Biotechnology, Northwest University, Xi'an, 710069, Shaanxi, China
| | - Jinping Guo
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, School of Life Sciences, Northwest University, Xi'an, 710069, Shaanxi, China
- College of Life Science, Northwest University, Xi'an, 710127, Shaanxi, China
- Shaanxi Provincial Key Laboratory of Biotechnology, Northwest University, Xi'an, 710069, Shaanxi, China
| | - Yujie Li
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, School of Life Sciences, Northwest University, Xi'an, 710069, Shaanxi, China
- College of Life Science, Northwest University, Xi'an, 710127, Shaanxi, China
- Shaanxi Provincial Key Laboratory of Biotechnology, Northwest University, Xi'an, 710069, Shaanxi, China
| | - Xiaoya Ma
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, School of Life Sciences, Northwest University, Xi'an, 710069, Shaanxi, China
- College of Life Science, Northwest University, Xi'an, 710127, Shaanxi, China
- Shaanxi Provincial Key Laboratory of Biotechnology, Northwest University, Xi'an, 710069, Shaanxi, China
| | - Shuangyu Yang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, School of Life Sciences, Northwest University, Xi'an, 710069, Shaanxi, China
- College of Life Science, Northwest University, Xi'an, 710127, Shaanxi, China
- Shaanxi Provincial Key Laboratory of Biotechnology, Northwest University, Xi'an, 710069, Shaanxi, China
| | - Jie Wei
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, School of Life Sciences, Northwest University, Xi'an, 710069, Shaanxi, China
- College of Life Science, Northwest University, Xi'an, 710127, Shaanxi, China
- Shaanxi Provincial Key Laboratory of Biotechnology, Northwest University, Xi'an, 710069, Shaanxi, China
| | - Huan Zhang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, School of Life Sciences, Northwest University, Xi'an, 710069, Shaanxi, China
- College of Life Science, Northwest University, Xi'an, 710127, Shaanxi, China
- Shaanxi Provincial Key Laboratory of Biotechnology, Northwest University, Xi'an, 710069, Shaanxi, China
| | - Shanshan Zhang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, School of Life Sciences, Northwest University, Xi'an, 710069, Shaanxi, China.
- College of Life Science, Northwest University, Xi'an, 710127, Shaanxi, China.
- Shaanxi Provincial Key Laboratory of Biotechnology, Northwest University, Xi'an, 710069, Shaanxi, China.
| | - Tianbo Jin
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, School of Life Sciences, Northwest University, Xi'an, 710069, Shaanxi, China.
- College of Life Science, Northwest University, Xi'an, 710127, Shaanxi, China.
- Shaanxi Provincial Key Laboratory of Biotechnology, Northwest University, Xi'an, 710069, Shaanxi, China.
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Zhang C, Jiang X, Chen W, Li Q, Yun F, Yang X, Dai R, Cheng Y. Population genetic difference of pharmacogenomic VIP gene variants in the Lisu population from Yunnan Province. Medicine (Baltimore) 2018; 97:e13674. [PMID: 30593137 PMCID: PMC6314765 DOI: 10.1097/md.0000000000013674] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
Individual differences in drug clinical response are related to pharmacogenomics. The genetic variation of drug-metabolizing enzymes, drug receptors, and their downstream protein genes is the main factor causing individual differences in drug response. The genetic backgrounds among different ethnic groups are quite different. In this study, we aimed to detect the distribution difference of genotype frequency in very important pharmacogenetic (VIP) gene variants in the Lisu.Using the chi-squared test, we compared the genotype frequencies of the VIP variants in 105 Lisu people with those in 26 populations from the 1000 Genome project separately. Bonferroni's multiple adjustment was also conducted (P < .05/(26*49)). Moreover, Arlequin v3.5 and Structure v2.3.4 software were used to analyze the genetic distance and genetic structure.There were 9, 9, 11, 12, 11, 11, 9, 17, 13, 13, 16, 5, 3, 5, 3, 4, 17, 14, 16, 17, 16, 10, 13, 12, 10, and 9 single nucleotide polymorphisms that differed in frequency distribution, when Lisu people compared with the 26 populations separately. Only CYP2E1 rs2070676 was different in the Lisu population compared with the 26 groups from the 1000 Genome project. PTGS2 rs5275 and CYP2D6 rs1065852 were different in the Lisu population compared with most of the populations. Additionally, genetic backgrounds of Lisu and Han Chinese in Beijing were closest according to the lowest F-statistics value and resemblance in genetic structures.Our results complete the information of the Lisu population in pharmacogenomics database.
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Affiliation(s)
- Chan Zhang
- Department of Blood Transfusion, The First People's Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology
| | - Xiaochun Jiang
- Department of Blood Transfusion, The Third People's Hospital of Yunnan Province, Kunming, Yunnan, China
| | - Wanlu Chen
- Department of Blood Transfusion, The First People's Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology
| | - Qi Li
- Department of Blood Transfusion, The First People's Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology
| | - Fubin Yun
- Department of Blood Transfusion, The First People's Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology
| | - Xin Yang
- Department of Blood Transfusion, The First People's Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology
| | - Run Dai
- Department of Blood Transfusion, The First People's Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology
| | - Yujing Cheng
- Department of Blood Transfusion, The First People's Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology
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Jafarzadeh A, Nemati M. Therapeutic potentials of ginger for treatment of Multiple sclerosis: A review with emphasis on its immunomodulatory, anti-inflammatory and anti-oxidative properties. J Neuroimmunol 2018; 324:54-75. [PMID: 30243185 DOI: 10.1016/j.jneuroim.2018.09.003] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2018] [Revised: 08/24/2018] [Accepted: 09/10/2018] [Indexed: 12/12/2022]
Abstract
Multiple sclerosis (MS) is characterized by chronic inflammatory response-induced demyelination of the neurons and degeneration of the axons within the central nervous system (CNS). A complex network of immunopathological-, inflammatory- and oxidative parameters involve in the development and advancement of MS. The anti-inflammatory, immunomodulatory and anti-oxidative characteristics of the ginger and several of its components have been indicated in some of experimental and clinical investigations. The possible therapeutic potentials of ginger and its ingredients in the treatment of MS may exert mainly through the regulation of the Th1-, Th2-, Th9-, Th17-, Th22- and Treg cell-related immune responses, down-regulation of the B cell-related immune responses, modulation of the macrophages-related responses, modulation of the production of pro- and anti-inflammatory cytokines, down-regulation of the arachidonic acid-derived mediators, interfering with the toll like receptor-related signaling pathways, suppression of the inflammasomes, down-regulation of the oxidative stress, reduction of the adhesion molecules expression, and down-regulation of the expression of the chemokines and chemokine receptors. This review aimed to provide a comprehensive knowledge regarding the immunomodulatory-, anti-inflammatory and anti-oxidative properties of ginger and its components, and highlight novel insights into the possible therapeutic potentials of this plant for treatment of MS. The review encourages more investigations to consider the therapeutic potentials of ginger and its effective components for managing of MS.
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Affiliation(s)
- Abdollah Jafarzadeh
- Department of Immunology, School of Medicine, Kerman University of Medical Sciences, Kerman, Iran; Molecular Medicine Research Center, Rafsanjan University of Medical Sciences, Rafsanjan, Iran.
| | - Maryam Nemati
- Department of Laboratory Sciences, School of Para-Medicine, Kerman University of Medical Sciences, Kerman, Iran
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A network-based method for mechanistic investigation of Shexiang Baoxin Pill's treatment of cardiovascular diseases. Sci Rep 2017; 7:43632. [PMID: 28272527 PMCID: PMC5341564 DOI: 10.1038/srep43632] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Accepted: 01/26/2017] [Indexed: 12/18/2022] Open
Abstract
Shexiang Baoxin Pill (SBP), a traditional Chinese medicine formula, is commonly used to treat cardiovascular disease (CVD) in China. However, the complexity of composition and targets has deterred our understanding of its mechanism of action. Using network pharmacology-based approaches, we established the mechanism of action for SBP to treat CVD by analyzing protein-protein interactions and pathways. The computational results were confirmed at the gene expression level in microarray-based studies. Two of the SBP’s targets were further confirmed at the protein level by Western blot. In addition, we validated the theory that SBP’s plasma absorbed compounds play major therapeutic role in treating CVD.
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Roberts RL, Stamp LK. Pharmacogenetic considerations in the treatment of gout. Pharmacogenomics 2015; 16:619-29. [PMID: 25876828 DOI: 10.2217/pgs.15.16] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Gout is one of the most common forms of arthritis and the prevalence is increasing. Management comprises rapid and effective control of the inflammation in acute gout and sustained urate lowering in the long term. Improving the outcomes for cheaper old drugs and for the increasing number of new, more expensive agents is an important clinical goal. The role of pharmacogenetics in predicting response and adverse events to gout therapies is of considerable interest. Currently, prospective screening is employed to detect HLA-B*5801 carriage and glucose-6-phosphate dehydrogenase deficiency, to minimize occurrence of allopurinol hypersensitivity and pegloticase-related hemolytic anemia. In the future it is likely that other genetic markers of drug response will make the transition to clinical practice to further improve the efficacy and safety of gout therapies. In this review, we will examine the potential clinical relevance of specific genetic variants in the management of gout.
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Affiliation(s)
- Rebecca L Roberts
- Department of Surgical Sciences, Dunedin School of Medicine, Dunedin, New Zealand
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Michele S, Salluzzo MG, Calogero AE, Raffaele F, Bosco P. Association study of COX-2 (PTGS2) -765 G/C promoter polymorphism by pyrosequencing in Sicilian patients with Alzheimer's disease. Arch Med Sci 2014; 10:1235-8. [PMID: 25624863 PMCID: PMC4296078 DOI: 10.5114/aoms.2014.47832] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2013] [Revised: 04/08/2013] [Accepted: 06/18/2013] [Indexed: 12/31/2022] Open
Abstract
INTRODUCTION Alzheimer's disease (AD) is characterized by progression of memory problems to a slow global decline of cognitive function. Inflammation when left unregulated becomes a major cofactor in the pathogenesis of AD. PTGS2 is of crucial relevance in the inflammatory response, and it has been shown to play a considerable role in AD pathogenesis. MATERIAL AND METHODS To assess the possible putative role of a PTGS2 polymorphism (-765 G/C) in AD patients, we examined, by pyrosequencing, its distribution in 84 Sicilian AD patients and in 80 controls. RESULTS No significant statistical difference in PTGS2 -765 G/C genotype distribution was found comparing patients with AD and controls. In addition, no significant difference was observed in the distribution of the PTGS2 -765 alleles between AD patients and controls. CONCLUSIONS These findings suggest that the PTGS2 -765 G/C polymorphism may not be associated with AD in the Sicilian population.
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Affiliation(s)
- Salemi Michele
- IRCCS Associazione Oasi Institute for Research on Mental Retardation and Brain Aging, Troina, Italy
| | - Maria Grazia Salluzzo
- IRCCS Associazione Oasi Institute for Research on Mental Retardation and Brain Aging, Troina, Italy
| | - Aldo E Calogero
- Section of Endocrinology, Andrology and Internal Medicine, Department of Medical and Pediatric Sciences, University of Catania, Catania, Italy
| | - Ferri Raffaele
- IRCCS Associazione Oasi Institute for Research on Mental Retardation and Brain Aging, Troina, Italy
| | - Paolo Bosco
- IRCCS Associazione Oasi Institute for Research on Mental Retardation and Brain Aging, Troina, Italy
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Palumbo S, Bosetti F. Alterations of brain eicosanoid synthetic pathway in multiple sclerosis and in animal models of demyelination: role of cyclooxygenase-2. Prostaglandins Leukot Essent Fatty Acids 2013; 89:273-8. [PMID: 24095587 DOI: 10.1016/j.plefa.2013.08.008] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2012] [Revised: 08/27/2013] [Accepted: 08/28/2013] [Indexed: 11/26/2022]
Abstract
Inflammation is a physiological response to exogenous and endogenous stimuli and, together with demyelination and immune system activation, is one of the key features of multiple sclerosis (MS). Arachidonic acid (AA) metabolism by cyclooxygenase (COX) and lipoxygenase (LO) enzymes leads to the production of proinflammatory eicosanoids, and stimulates cytokine production and activation of microglia and astrocytes, thereby contributing to MS pathology. Current therapies target the immune system but do not specifically target AA-related inflammatory pathway. Corticosteroids and non-steroidal anti-inflammatory drugs (NSAIDs) are frequently associated with immunomodulatory therapies to treat flu-like adverse effects. Few clinical and mounting preclinical data in MS show that AA metabolism contributes to immune system activation, demyelination and motor disabilities, and administration of NSAIDs reduces these symptoms. The beneficial effect of NSAIDs seems to be a prerogative of COX-2 selective inhibitors and suggests that NSAIDs selective for COX-2 may be more effective than mixed COX-1/2 inhibitors.
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Affiliation(s)
- Sara Palumbo
- Molecular Neuroscience Unit, Brain Physiology and Metabolism Section, National Institute on Aging, National Institutes of Health, 20892 Bethesda, MD, USA.
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Cornejo-García JA, Jagemann LR, Blanca-López N, Doña I, Flores C, Guéant-Rodríguez RM, Torres MJ, Fernández J, Laguna JJ, Rosado A, Agúndez JAG, García-Martín E, Canto G, Guéant JL, Blanca M. Genetic variants of the arachidonic acid pathway in non-steroidal anti-inflammatory drug-induced acute urticaria. Clin Exp Allergy 2013. [PMID: 23181793 DOI: 10.1111/j.1365-2222.2012.04078.x] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
BACKGROUND To date, genetic studies of hypersensitivity reactions to non-steroidal anti-inflammatory drugs (NSAIDs) have been carried out mainly in aspirin-induced asthma and to a lesser extent in chronic urticaria, with no studies in patients with acute urticaria (AU), the most common entity induced by these drugs. OBJECTIVE In this work, we analysed the association of common variants of 15 relevant genes encoding both enzymes and receptors from the arachidonic acid (AA) pathway with NSAID-induced AU. METHODS Patients were recruited in several Allergy Services that are integrated into the Spanish network RIRAAF, and diagnosed of AU induced by cross-intolerance (CRI) to NSAIDs. Genotyping was carried out by TaqMan allelic discrimination assays. RESULTS A total of 486 patients with AU induced by CRI to NSAIDs and 536 unrelated controls were included in this large Spanish case-control study. Seven variants from 31 tested in six genes were associated in a discovery study population from Malaga (0.0003 ≤ p-value ≤ 0.041). A follow-up analysis in an independent sample from Madrid replicated three of the SNPs from the ALOX15 (rs7220870), PTGDR (rs8004654) and CYSLTR1 (rs320095) genes (1.055x10(-6) ≤meta-analysis p-value ≤ 0.003). CONCLUSIONS AND CLINICAL RELEVANCE Genetic variants of the AA pathway may play an important role in NSAID-induced AU. These data may help understand the mechanism underlying this disease.
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Affiliation(s)
- J A Cornejo-García
- INSERM U-954, Nutrition-Génétique et exposition aux risques environmentaux, Faculty of Medicine, University of Nancy, Vandoeuvre-les-Nancy, France.
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Variants of gene for microsomal prostaglandin E2 synthase show association with disease and severe inflammation in rheumatoid arthritis. Eur J Hum Genet 2011; 19:908-14. [PMID: 21448233 DOI: 10.1038/ejhg.2011.50] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Microsomal PGE synthase 1 (mPGES-1) is the terminal enzyme in the induced state of prostaglandin E(2) (PGE(2)) synthesis and constitutes a therapeutic target for rheumatoid arthritis (RA) treatment. We examined the role of the prostaglandin E synthase (PTGES) gene polymorphism in susceptibility to and severity of RA and related variations in the gene to its function. The PTGES gene polymorphism was analyzed in 3081 RA patients and 1900 controls from two study populations: Swedish Epidemiological Investigation of Rheumatoid Arthritis (EIRA) and the Leiden Early Arthritis Clinic (Leiden EAC). Baseline disease activity score (DAS28) was employed as a disease severity measure. mPGES-1 expression was analyzed in synovial tissue from RA patients with known genotypes using immunohistochemistry. In the Swedish study population, among women a significant association with risk for RA was observed for PTGES single-nucleotide polymorphisms (SNPs) in univariate analysis and for the distinct haplotype. These results were substantiated by meta-analysis of data from EIRA and Leiden EAC studies with overall OR 1.31 (95% confidence interval 1.11-1.56). Several PTGES SNPs were associated with earlier onset of disease or with higher DAS28 in women with RA. Patients with the genotype associated with higher DAS28 exhibited significantly higher mPGES-1 expression in synovial tissue. Our data reveal a possible influence of PTGES polymorphism on the pathogenesis of RA and on disease severity through upregulation of mPGES-1 at the sites of inflammation. Genetically predisposed individuals may develop earlier and more active disease owing to this mechanism.
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Mirshafiey A, Jadidi-Niaragh F. Prostaglandins in pathogenesis and treatment of multiple sclerosis. Immunopharmacol Immunotoxicol 2010; 32:543-54. [PMID: 20233088 DOI: 10.3109/08923971003667627] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Multiple sclerosis (MS) is a chronic inflammatory demyelinating disease of the central nervous system (CNS) characterized by inflammation, demyelination, axonal loss, and gliosis. The inflammatory lesions are manifested by a large infiltration and a heterogeneous population of cellular and soluble mediators of the immune system, such as T cells, B cells, macrophages, and microglia, as well as a broad range of cytokines, chemokines, antibodies, complement, and other toxic substances. Prostaglandins (PGs) are arachidonic acid-derived autacoids that have a role in the modulation of many physiological systems including the CNS, respiratory, cardiovascular, gastrointestinal, genitourinary, endocrine, and immune systems. PG production is associated with inflammation, a major feature in MS that is characterized by the loss of myelinating oligodendrocytes in the CNS. With respect to the role of PGs in the induction of inflammation, they can be effective mediators in the pathophysiology of MS. Thus use of agonists or antagonists of PG receptors may be considered as a new therapeutic protocol in MS. In this review, we try to clarify the role of PGs in immunopathology and treatment of MS.
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Affiliation(s)
- Abbas Mirshafiey
- Department of Immunology, School of Public Health, Tehran University of Medical Sciences, Tehran 14155, Iran.
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Amirian E, Liu Y, Scheurer ME, El-Zein R, Gilbert MR, Bondy ML. Genetic variants in inflammation pathway genes and asthma in glioma susceptibility. Neuro Oncol 2010; 12:444-52. [PMID: 20406895 DOI: 10.1093/neuonc/nop057] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Single nucleotide polymorphisms (SNPs) in inflammation-related genes have previously been shown to alter risks of developing various cancers. However, the effects of such SNPs on glioma risk remain unclear. We used a multistrategic approach to elucidate the relationship between glioma risk, asthma/allergies, and 23 literature-based functional SNPs in 11 inflammation genes. Genotyping was conducted on 373 histologically confirmed adult glioma patients and 365 cancer-free controls from the Harris County Brain Tumor Study. Deviations from the Hardy-Weinberg equilibrium were assessed using the chi(2)-test, and Akaike's information criterion was used to determine the best genetic model for each SNP. Odds ratios (ORs) were calculated both for each SNP individually and for grouped analyses, examining the effects of the numbers of adverse alleles on glioma risk in participants with and without asthma. In the single-locus analysis of the 23 examined SNPs, 1 pro-inflammatory and 2 anti-inflammatory gene SNPs were significantly associated with glioma risk (COX2/PTGS2, rs20417 [OR = 1.41]; IL10, rs1800896 [OR = 1.57]; and IL13, rs20541 [OR = 0.39], respectively). When we examined the joint effects of the risk-conferring alleles of these 3 SNPs, we found a significant trend indicating that the risk increases as the number of adverse alleles increase (P = .005). Stratifying by asthma status, we found that this dose-response-like trend of increasing risk is only present among those without asthma/allergies (P < .0001). Our study indicates that polymorphisms in inflammation genes are associated with glioma susceptibility, especially when a history of asthma/allergies is absent.
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Affiliation(s)
- E Amirian
- Departments of Epidemiology, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, USA
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Geiger EV, Doehring A, Kirchhof A, Lötsch J. Functional variants of the human 5-lipoxygenase gene and their genetic diagnosis. Prostaglandins Leukot Essent Fatty Acids 2009; 80:255-62. [PMID: 19446447 DOI: 10.1016/j.plefa.2009.04.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2008] [Revised: 04/02/2009] [Accepted: 04/03/2009] [Indexed: 11/21/2022]
Abstract
Variants in the 5-lipoxygenase (ALOX5) gene are first-line candidate causes for interindividual differences in diseases where leukotrienes play a key role, e.g., inflammatory and immune diseases, atherosclerosis, asthma or the acute respiratory distress syndrome (ARDS). We developed and validated Pyrosequencing screening assays for single nucleotide polymorphism (dbSNP-IDs rs4986832, rs4987105, rs2115819, rs3740107, rs1565096, rs2291427, rs10571382, rs2242334, rs2229136, rs3802548), and a capillary electrophoresis assay for the ALOX5 Sp1/Egr1 promoter tandem repeat polymorphism. This selection spans the whole ALOX5 gene range and includes all variants with reported functional associations. A gene structure analysis in DNAs from 187 healthy unrelated Caucasians revealed two haploblocks, one in the promoter and one spanning six SNPs from rs3740107G>A in intron 6 to rs2229136A>G in exon 13. The five-repeat genotype was the most frequent Sp1/Egr1 promoter tandem repeat variant (allelic frequency 84%). These assays and analyses provide a solid basis for future assessments of the genetic modulation of leukotriene production.
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Affiliation(s)
- Emanuel V Geiger
- Pharmazentrum Frankfurt/ZAFES, Institute of Clinical Pharmacology, Goethe-University, Theodor Stern Kai 7, D-60590 Frankfurt am Main, Germany
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Lopez-Campos JL, Rodriguez-Rodriguez D, Rodriguez-Becerra E, Alfageme Michavila I, Guerra JF, Hernandez FJG, Casanova A, Fernández de Córdoba Gamero J, Romero-Ortiz A, Arellano-Orden E, Montes-Worboys A. Cyclooxygenase-2 polymorphisms confer susceptibility to sarcoidosis but are not related to prognosis. Respir Med 2008; 103:427-33. [PMID: 19042116 DOI: 10.1016/j.rmed.2008.09.014] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2008] [Revised: 08/12/2008] [Accepted: 09/23/2008] [Indexed: 10/21/2022]
Abstract
BACKGROUND The aim of this multicenter study was to investigate the relationship between single nucleotide polymorphisms (SNPs) of the cyclooxygenase-2 (COX2) gene and susceptibility to sarcoidosis, as well as the relation between these SNPs and the evolution of the disease. MATERIAL AND METHODS This multicenter investigation involved seven hospitals in Spain. We used a case-control design followed by a prospective follow-up study. Sarcoid patients were recruited from the participating institutions during outpatient routine visits. Age- and gender-matched control subjects were recruited mainly from among outpatients attending the participating hospitals. Four SNPs in the COX2 gene (COX2.5909 T > G, COX2.8473 T > C, COX2.926 G > C, and COX2.3050 G > C) were genotyped using fluorescent hybridization probes among 131 patients with sarcoidosis (63 males; mean age: 47 +/- 15 years) and 157 healthy controls (83 males; mean age: 50 +/- 16 years). We employed a binomial multiple logistic regression analysis to test the association between the selected SNPs and disease susceptibility. The clinical, functional and radiological prognosis of the sarcoidosis patients was determined after a mean follow-up of 37.4 +/- 30.4 months. RESULTS Carriers of the homozygous CC genotype of the COX2.8473 T > C polymorphism had a higher risk of sarcoidosis compared with TT carriers (OR: 3.08; 95% CI: 1.2-7.7; p = 0.035). 84% of patients achieved improvement or complete remission at follow-up. No association between the investigated SNPs and prognosis was seen. CONCLUSIONS Our data suggest that the homozygous CC genotype of the COX2.8473 T > C polymorphism may be associated with sarcoidosis susceptibility. No significant association with prognosis was detected.
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Association of the 3050G>C Polymorphism in the Cyclooxygenase 2 Gene with Systemic Sarcoidosis. Arch Med Res 2008; 39:525-30. [DOI: 10.1016/j.arcmed.2008.03.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2007] [Accepted: 03/24/2008] [Indexed: 11/23/2022]
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