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Kharagjitsing HHS, Hendriksz TR, Fouraux MA, van Gelder T, van Bommel EFH. Clinical significance of soluble interleukin-2 receptor measurement in patients with idiopathic retroperitoneal fibrosis. Int Urol Nephrol 2022; 54:2663-2671. [PMID: 35359217 DOI: 10.1007/s11255-022-03196-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Accepted: 03/25/2022] [Indexed: 10/18/2022]
Abstract
BACKGROUND Idiopathic retroperitoneal fibrosis (iRPF) is a rare chronic fibro-inflammatory disorder of unknown etiology. Activated T-helper cells, which shed soluble interleukin-2 receptor (sIL-2R) into the circulation, may play a pathogenetic role. Hence, measuring sIL-2R may be of value in monitoring disease activity and treatment response in iRPF patients. METHODS We performed a prospective inception cohort study of 82 patients with untreated (re)active iRPF stratified by elevated (> 623 U/mL) or normal sIL-2R level at baseline and compared disease characteristics among these groups. Baseline and changes in sIL-2R levels following treatment with tamoxifen (TMX) or prednisone (PDN) were analyzed and related to treatment response. RESULTS Median sIL-2R level was 668 U/mL (IQR 502.8-827.5); 48 patients (59%) had elevated baseline sIL-2R levels. Patients with elevated sIL-2R presented with higher CRP (P = 0.049) and serum creatinine (sCr) levels (P < 0.001) and more often had hydroureteronephrosis (P = 0.01). There was an age and sex adjusted linear association between baseline sIL-2R and both CRP (P = 0.02) and sCr (P < 0.001). Baseline and serial levels of sIL-2R were predictive and concordant, respectively, with clinical response in patients treated with PDN. ROC curve analyses of sIL-2R on a continuous scale and PDN treatment success showed an AUC of 0.84. A serum sIL-2R cut-off value for PDN treatment success of ≤ 703 U/mL was found with a sensitivity of 100% and specificity of 72%. CONCLUSION Serial measurement of sIL-2R may be of value in monitoring disease activity and PDN treatment response in iRPF patients.
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Affiliation(s)
- H H S Kharagjitsing
- Department of Internal Medicine/Dutch National Center of Expertise Retroperitoneal Fibrosis, Albert Schweitzer Hospital, PO Box 444, NL-3300 AK, Dordrecht, The Netherlands
| | - T R Hendriksz
- Department of Radiology, Albert Schweitzer Hospital, Dordrecht, The Netherlands
| | - M A Fouraux
- Result Laboratory, Albert Schweitzer Hospital, Dordrecht, The Netherlands
| | - T van Gelder
- Department of Clinical Pharmacy and Toxicology, Leiden University Medical Center, Leiden, The Netherlands
| | - E F H van Bommel
- Department of Internal Medicine/Dutch National Center of Expertise Retroperitoneal Fibrosis, Albert Schweitzer Hospital, PO Box 444, NL-3300 AK, Dordrecht, The Netherlands.
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Peng Y, Chen B, Sheng X, Qian Y. The Genetic Association Between TLR-1, -2, -4, and -6 Gene Polymorphisms and Rheumatoid Arthritis Susceptibility in a Chinese Han Population. Genet Test Mol Biomarkers 2022; 26:140-145. [PMID: 35254871 DOI: 10.1089/gtmb.2021.0207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Aims: The toll-like receptor (TLR) genes were shown to be involved in the pathogenesis of rheumatoid arthritis (RA). We aimed to investigate the genetic associations between the TLR-1, -2, -4, and -6 genes polymorphisms and RA susceptibility in a Chinese Han population. Methods: Six polymorphisms [TLR-1 (rs5743610, rs5743618), -2 (rs5743708), -4 (rs4986790, rs4986791), and -6 (rs5743810)] in TLRs genes were genotyped in 360 patients with RA and 560 matched healthy controls by using direct sequencing method. The odds ratios (ORs) and 95% confidence intervals (CIs) were evaluated using a standard logistic regression analysis. Results: No significant association between the allelic, dominant, and recessive models of TLR-1 rs5743610, TLR-2 rs5743708, TLR-4 rs4986790 and rs4986791, and TLR-6 rs5743810 polymorphisms and RA risk was observed (p > 0.05). However, significant associations were detected between the allelic, dominant, and recessive models of TLR-1 rs5743618 and RA risk (allelic: OR [95% CI] = 2.21 [1.73-2.81], p < 0.0001; dominant: OR [95% CI] = 2.33 [1.75-3.09], p < 0.0001; recessive models: OR [95% CI] = 3.70 [1.85-7.41], p = 0.0002). In addition, the TLR6 rs5743810 was found to be associated with the rheumatoid factor (RF)- and anticyclic citrullinated peptide (anti-CCP)- antibody in RA group (RF: OR [95% CI] = 2.29 [1.42-3.69], p = 0.0007; anti-CCP: OR [95% CI] = 2.33 [1.39-3.89], p = 0.001). Conclusions: The allelic, dominant, and recessive models of TLR1 rs5743618 might be associated with RA susceptibility. Also, the TLR6 rs5743810 might be associated with RF and anti-CCP antibody of RA in Chinese Han population.
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Affiliation(s)
- Yuqin Peng
- Department of Orthopaedics, Changshu Hospital Affiliated to Soochow University, Changshu No.1 People's Hospital, Changshu, China
| | - Bingqian Chen
- Department of Orthopaedics, Changshu Hospital Affiliated to Soochow University, Changshu No.1 People's Hospital, Changshu, China
| | - Xiaowen Sheng
- Department of Orthopaedics, Changshu Hospital Affiliated to Soochow University, Changshu No.1 People's Hospital, Changshu, China
| | - Yufeng Qian
- Department of Orthopaedics, Changshu Hospital Affiliated to Soochow University, Changshu No.1 People's Hospital, Changshu, China
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Gębura K, Świerkot J, Wysoczańska B, Korman L, Nowak B, Wiland P, Bogunia-Kubik K. Polymorphisms within Genes Involved in Regulation of the NF-κB Pathway in Patients with Rheumatoid Arthritis. Int J Mol Sci 2017; 18:E1432. [PMID: 28677621 PMCID: PMC5535923 DOI: 10.3390/ijms18071432] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Revised: 06/28/2017] [Accepted: 06/30/2017] [Indexed: 02/06/2023] Open
Abstract
Genes involved in regulation of the nuclear factor-κB (NF-κB)-pathway are suggested to play a role in pathogenesis of rheumatoid arthritis (RA). In the present study, genetic polymorphisms of TLR2, TLR4, TLR9 and NF-κB1 genes were investigated to assess their associations with RA susceptibility, progression and response to anti-TNF-α therapy. A group of 110 RA patients and 126 healthy individuals were genotyped for TLR2 (rs111200466), TLR4 (rs4986790, rs4986791), TLR9 (rs5743836, rs187084) and NF-κB1 (rs28362491) alleles. The presence of the TLR9 -1486 T variant (p < 0.0001) and its homozygosity (p < 0.0001) were found to be associated with disease susceptibility. The TLR9 -1237 C allele was associated with predisposition to RA in females only (p = 0.005). Moreover, the TLR4 rs4986791 G (rs4986790 T) alleles were more frequently detected among patients with the stage IV disease (p = 0.045), and were associated with more effective response to anti-TNF-α therapy (p = 0.012). More efficient response to anti-TNF-α treatment was also observed in patients with del within the NF-κB1 gene (p = 0.047), while for the TLR9 -1486 T homozygotes, the treatment was ineffective (p = 0.018). TLR polymorphisms affect disease susceptibility and response to therapy with TNF-α inhibitors in RA patients of Caucasian origin.
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Affiliation(s)
- Katarzyna Gębura
- Laboratory of Clinical Immunogenetics and Pharmacogenetics, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53-114 Wroclaw, Poland.
| | - Jerzy Świerkot
- Department of Rheumatology and Internal Medicine, Wroclaw Medical University, 50-556 Wrocław, Poland.
| | - Barbara Wysoczańska
- Laboratory of Clinical Immunogenetics and Pharmacogenetics, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53-114 Wroclaw, Poland.
| | - Lucyna Korman
- Department of Rheumatology and Internal Medicine, Wroclaw Medical University, 50-556 Wrocław, Poland.
| | - Beata Nowak
- Department of Pharmacology, Wroclaw Medical University, 50-556 Wrocław, Poland.
- Department of Rheumatology and Internal Medicine, Wroclaw University Hospital, 50-556 Wrocław, Poland.
| | - Piotr Wiland
- Department of Rheumatology and Internal Medicine, Wroclaw Medical University, 50-556 Wrocław, Poland.
| | - Katarzyna Bogunia-Kubik
- Laboratory of Clinical Immunogenetics and Pharmacogenetics, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53-114 Wroclaw, Poland.
- Department of Internal, Occupational Diseases, Hypertension and Clinical Oncology, Wroclaw Medical University, 50-556 Wrocław, Poland.
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Evaluation of Toll-like-receptor gene family variants as prognostic biomarkers in rheumatoid arthritis. Immunol Lett 2017; 187:35-40. [DOI: 10.1016/j.imlet.2017.04.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Revised: 04/06/2017] [Accepted: 04/18/2017] [Indexed: 02/06/2023]
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Wang Y, Chen L, Li F, Bao M, Zeng J, Xiang J, Luo H, Li J, Tang L. TLR4 rs41426344 increases susceptibility of rheumatoid arthritis (RA) and juvenile idiopathic arthritis (JIA) in a central south Chinese Han population. Pediatr Rheumatol Online J 2017; 15:12. [PMID: 28222760 PMCID: PMC5320652 DOI: 10.1186/s12969-017-0137-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Accepted: 01/19/2017] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The aim of the study was to determine whether polymorphisms in toll-like receptor 4 (TLR4) confer susceptibility to rheumatoid arthritis (RA) and juvenile idiopathic arthritis (JIA) in a central south Chinese Han population. METHODS Genotyping for six well studied polymorphisms (rs4986790, rs4986791, rs10759932, rs41426344, rs11536889 and rs7873784) in TLR4 gene were conducted in 1074 unrelated patients with RA and 1692 healthy control subjects, as well as in 217 unrelated patients with JIA and 378 healthy control subjects using direct sequencing technique. Comparisons between cases and controls in alleles, genotypes and haplotypes were carried out using Fisher's exact test. RESULTS Significant genetic associations were detected between the 3'UTR rs41426344C and RA (p < 0.001, p adj < 0.001, OR = 2.24) and JIA (p < 0.001, p adj < 0.001, OR = 2.05). In addition, rs4986790G was found to be significantly associated with the susceptibility for RA (p = 0.005, p adj = 0.03, OR = 3.43), but not for JIA (p = 0.06, p adj = 0.36, OR = 2.65). Furthermore, significant increasing in the distributions of haplotypes H4 and H10 in RA (H4: p = 0.001, OR = 1.13; H10: p = 0.001, OR = 1.15) and JIA (H4: p = 0.04, OR = 2.06; H10: p = 0.02, OR = 2.47) were also found. Moreover, the frequency of rs41426344C significantly increased in RF-positive and anti-CCP positive subjects both in RA (RF+: p <0.0001, OR = 2.33; anti-CCP+: p =0.008, OR = 2.79) and JIA (RF+: p =0.02, OR = 2.91; anti-CCP+: p = 0.02, OR = 2.78). CONCLUSIONS Our study suggested that rs41426344 and rs4986790 of TLR4 might contribute to RA, and rs41426344 might contribute to JIA pathogenesis in central south Chinese Han population.
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Affiliation(s)
- Yan Wang
- 0000 0004 1765 8757grid.464229.fDepartment of Human Anatomy, Histology and Embryology, Institute of Neuroscience, Changsha Medical University, No. 1501 Lei Feng Road,, Wangcheng District, Changsha City, Hunan Province 410219 People’s Republic of China ,0000 0004 1765 8757grid.464229.fSchool of Basic Medical Science, Changsha Medical University, Changsha, People’s Republic of China ,0000 0004 1765 8757grid.464229.fExperiment center for Function, Changsha Medical University, Changsha, People’s Republic of China
| | - Lianghui Chen
- 0000 0004 1765 8757grid.464229.fDepartment of Human Anatomy, Histology and Embryology, Institute of Neuroscience, Changsha Medical University, No. 1501 Lei Feng Road,, Wangcheng District, Changsha City, Hunan Province 410219 People’s Republic of China ,0000 0004 1765 8757grid.464229.fSchool of Basic Medical Science, Changsha Medical University, Changsha, People’s Republic of China ,0000 0004 1765 8757grid.464229.fExperiment center for Function, Changsha Medical University, Changsha, People’s Republic of China
| | - Fang Li
- 0000 0004 1765 8757grid.464229.fDepartment of Human Anatomy, Histology and Embryology, Institute of Neuroscience, Changsha Medical University, No. 1501 Lei Feng Road,, Wangcheng District, Changsha City, Hunan Province 410219 People’s Republic of China ,0000 0004 1765 8757grid.464229.fSchool of Basic Medical Science, Changsha Medical University, Changsha, People’s Republic of China
| | - Meihua Bao
- 0000 0004 1765 8757grid.464229.fDepartment of Human Anatomy, Histology and Embryology, Institute of Neuroscience, Changsha Medical University, No. 1501 Lei Feng Road,, Wangcheng District, Changsha City, Hunan Province 410219 People’s Republic of China ,0000 0004 1765 8757grid.464229.fSchool of Basic Medical Science, Changsha Medical University, Changsha, People’s Republic of China
| | - Jie Zeng
- 0000 0004 1765 8757grid.464229.fDepartment of Human Anatomy, Histology and Embryology, Institute of Neuroscience, Changsha Medical University, No. 1501 Lei Feng Road,, Wangcheng District, Changsha City, Hunan Province 410219 People’s Republic of China ,0000 0004 1765 8757grid.464229.fSchool of Basic Medical Science, Changsha Medical University, Changsha, People’s Republic of China
| | - Ju Xiang
- 0000 0004 1765 8757grid.464229.fDepartment of Human Anatomy, Histology and Embryology, Institute of Neuroscience, Changsha Medical University, No. 1501 Lei Feng Road,, Wangcheng District, Changsha City, Hunan Province 410219 People’s Republic of China ,0000 0004 1765 8757grid.464229.fSchool of Basic Medical Science, Changsha Medical University, Changsha, People’s Republic of China
| | - Huaiqing Luo
- 0000 0004 1765 8757grid.464229.fDepartment of Human Anatomy, Histology and Embryology, Institute of Neuroscience, Changsha Medical University, No. 1501 Lei Feng Road,, Wangcheng District, Changsha City, Hunan Province 410219 People’s Republic of China ,0000 0004 1765 8757grid.464229.fSchool of Basic Medical Science, Changsha Medical University, Changsha, People’s Republic of China ,0000 0004 1765 8757grid.464229.fExperiment center for Function, Changsha Medical University, Changsha, People’s Republic of China
| | - Jianming Li
- 0000 0004 1765 8757grid.464229.fDepartment of Human Anatomy, Histology and Embryology, Institute of Neuroscience, Changsha Medical University, No. 1501 Lei Feng Road,, Wangcheng District, Changsha City, Hunan Province 410219 People’s Republic of China ,0000 0001 0379 7164grid.216417.7Department of Neurology, Xiang-ya Hospital, Central South University, Changsha City, Hunan Province China
| | - Liang Tang
- Department of Human Anatomy, Histology and Embryology, Institute of Neuroscience, Changsha Medical University, No. 1501 Lei Feng Road,, Wangcheng District, Changsha City, Hunan Province, 410219, People's Republic of China. .,School of Basic Medical Science, Changsha Medical University, Changsha, People's Republic of China.
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Navarro-Partida J, Martinez-Rizo AB, Ramirez-Barrera P, Velazquez-Fernandez JB, Mondragon-Jaimes VA, Santos-Garcia A, Benites-Godinez V. Association of Toll-like receptor 4 single-nucleotide polymorphisms Asp299Gly and Thr399Ile with the risk of primary open angle glaucoma. Graefes Arch Clin Exp Ophthalmol 2017; 255:995-1001. [PMID: 28214954 DOI: 10.1007/s00417-017-3610-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Revised: 01/01/2017] [Accepted: 02/06/2017] [Indexed: 12/18/2022] Open
Abstract
PURPOSE Toll-like receptor 4 (TLR4) is a transmembrane receptor that mediates immune responses to exogenous and endogenous ligands. Previously, non-coding single nucleotide polymorphisms (SNPs) in the TLR4 gene were related to primary open angle glaucoma (POAG). This study was undertaken to investigate whether coding TLR4 Asp299Gly (rs4986790 A/G) and Thr399Ile (rs4986791 C/T) are associated with POAG in a Mexican population. METHODS One hundred and eighty-seven unrelated Mexican patients with POAG (94 men and 95 women; mean age 66.49 ± 14.3 years) and 109 control subjects (40 men and 69 women; age, 63.28 ± 7.93 years) were included. SNPs Asp299Gly (rs4986790 A/G) and Thr399Ile (rs4986791 C/T) were genotyped by a Taqman® Allelic Discrimination Assayand. Allelic, genotypic, haplotypic, and model-based (dominant, recessive, and codominant) associations of the SNPs with POAG were analyzed using Chi-squared tests or Fisher exact tests and logistic regression. RESULTS Strong linkage disequilibrium was observed among the SNPs (D' = 0.8692), which were located in one haplotype block. With respect to allelic diversity, the minor allele of both SNPs generates a significantly increased risk of POAG. The minor allele of Asp299Gly conferred the highest increased risk of POAG (P = 0.0054, OR = 4.47, 95% CI = 1.46-13.70). With regard to genotypic diversity, individuals carrying the minor allele of Asp299Gly and Thr399Ile had a significant increased risk for POAG with OR of 4.47 (P = 0.054, 95% CI = 1.30-15.35) and 3.5, respectively (P = 0.012, 95% CI = 1.17-10.44). Haplotype analysis was non-significant. CONCLUSIONS TLR4 coding SNPs Asp299Gly and Thr399Ile might be used as genetic susceptibility alleles for POAG in Mexican population. Our findings support the role of TLR4 in the pathophysiology of glaucoma.
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Affiliation(s)
- Jose Navarro-Partida
- Tecnológico de Monterrey, División de Biotecnología y Salud, Campus Guadalajara, Guadalajara, Jalisco, México. .,Universidad Autónoma de Nayarit, Tepic, Nayarit, México. .,Edificio de Ciencias de la Salud, Tecnológico de Monterrey, Campus Guadalajara, Avenida General Ramón Corona, 2514, Zapopan, Jalisco, C.P. 45201, México.
| | | | | | | | | | - Arturo Santos-Garcia
- Tecnológico de Monterrey, División de Biotecnología y Salud, Campus Guadalajara, Guadalajara, Jalisco, México
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Navarro-Partida J, Alvarado Castillo B, Martinez-Rizo AB, Rosales-Diaz R, Velazquez-Fernandez JB, Santos A. Association of single-nucleotide polymorphisms in non-coding regions of the TLR4 gene with primary open angle glaucoma in a Mexican population. Ophthalmic Genet 2016; 38:325-329. [PMID: 27892755 DOI: 10.1080/13816810.2016.1227454] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND Toll-like receptor 4 (TLR4) non-coding polymorphisms are associated to primary open angle glaucoma (POAG), normal tension glaucoma, and pseudoexfoliation glaucoma. This study was performed to determine whether non-coding single nucleotide polymorphisms (SNPs) in the TLR4 gene contribute to POAG in a Mexican population. MATERIAL AND METHODS A total of 187 unrelated Mexican patients with POAG and 109 control subjects were included. Allelic, genotypic, and haplotypic diversity was assessed for the non-coding polymorphisms rs11536889, rs1927911, rs12377632, and rs2149356 of the TLR4 gene. Genotyping of target SNPs was performed by 5' exonuclease allelic discrimination assays. RESULTS Strong linkage disequilibrium was observed among the SNPs (D' > 0.818), which were located in one haplotype block. The rs11536889 polymorphism was not associated to POAG in any case. The frequency of the minor allele of rs2149356 was significantly higher in the glaucoma group, conferring an increased risk of POAG (p = 0.0018, OR = 1.803, 95% CI 1.2556-2.5890) whereas minor allele of rs12377632 was significantly lower, attributing a protective effect (p = 0.0001, OR = 0.6662, 95% CI 0.4753-0.9339). Subjects with genotypes carrying the minor allele of rs1927911 and rs2149356 shown an increased risk for POAG (p = 0.03, OR = 1.78, 95% CI 1.10-2.87, and p < 0.0004, OR =2.62, 95%CI 1.61-4.27 respectively). Finally, we found significant risk haplotypes. The GTT haplotype (constituted by rs1927911, rs12377632, and rs2149356) reached the higher OR (p = 0.0026, OR = 4.70, 95% CI 1.73-12.77). CONCLUSIONS We have identified intronic TLR4 SNPs as genetic susceptibility alleles for POAG in a Mexican population. Our findings support the association of the TLR4 gene with POAG.
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Affiliation(s)
- Jose Navarro-Partida
- a División de Biotecnología y Salud, Campus Guadalajara , Tecnológico de Monterrey , Guadalajara , Jalisco , México
| | - Beatriz Alvarado Castillo
- b Instituto Mexicano del Seguro Social , Centro Médico Nacional de Occidente , Guadalajara , Jalisco , México
| | | | - Ramses Rosales-Diaz
- c Unidad Académica de Medicina , Universidad Autónoma de Nayarit , Tepic , Nayarit , México
| | | | - Arturo Santos
- a División de Biotecnología y Salud, Campus Guadalajara , Tecnológico de Monterrey , Guadalajara , Jalisco , México
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Torices S, Julia A, Muñoz P, Varela I, Balsa A, Marsal S, Fernández-Nebro A, Blanco F, López-Hoyos M, Martinez-Taboada V, Fernández-Luna JL. A functional variant of TLR10 modifies the activity of NFkB and may help predict a worse prognosis in patients with rheumatoid arthritis. Arthritis Res Ther 2016; 18:221. [PMID: 27716427 PMCID: PMC5050569 DOI: 10.1186/s13075-016-1113-z] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2016] [Accepted: 09/06/2016] [Indexed: 02/06/2023] Open
Abstract
Background Toll-like receptor (TLR) family members are key players in inflammation. TLR10 has been poorly studied in chronic inflammatory disorders, and its clinical relevance in rheumatoid arthritis (RA) is as yet unknown. We aimed at identifying TLR10 variants within all coding regions of the gene in patients with RA as well as studying their functional and clinical significance. Methods TLR10 gene variants were studied by performing sequencing of 66 patients with RA and 30 control subjects. A selected variant, I473T, was then analyzed in 1654 patients and 1702 healthy control subjects. The capacity of this TLR10 variant to modify the transcriptional activity of nuclear factor kappa-light-chain-enhancer of activated B cells (NFkB) was determined by using a luciferase reporter assay and analyzing the expression of NFkB target genes by quantitative polymerase chain reaction. Differences between groups were analyzed by using the Mann-Whitney U test and the unpaired two-tailed Student’s t test. Results We detected ten missense variants in the TLR10 gene and focused on the I473T substitution based on allele frequencies and the predicted functional impact. I473T variant is not associated with susceptibility to RA, but it significantly correlates with erosive disease in patients seropositive for antibodies to citrullinated protein antigens (p = 0.017 in the total cohort and p = 0.0049 in female patients) and with a lower response to infliximab treatment as measured by the change in Disease Activity Score in 28 joints (p = 0.012) and by the European League Against Rheumatism criteria (p = 0.049). Functional studies showed that TLR10 reduced activation of the NFkB inflammatory pathway in hematopoietic cells, whereas the I473T variant lacked this inhibitory capacity. Consistently, after exposure to infliximab, cells expressing the I437T variant showed higher NFkB activity than cells carrying wild-type TLR10. Conclusions A TLR10 allelic variant, I473T, has impaired NFkB inhibitory activity and is highly associated with disease severity and low response to infliximab in patients with RA.
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Affiliation(s)
- Silvia Torices
- Servicio de Reumatología, Hospital Universitario Marques de Valdecilla-Instituto de Investigación Valdecilla (IDIVAL), Avenida Valdecilla s/n, 39008, Santander, Spain.,Unidad de Genética, Hospital Universitario Marques de Valdecilla-Instituto de Investigación Valdecilla (IDIVAL), Avenida Valdecilla s/n, 39008, Santander, Spain
| | - Antonio Julia
- Rheumatology Research Group, Vall d'Hebron Research Institute, 08035, Barcelona, Spain
| | - Pedro Muñoz
- Gerencia Atención Primaria, Servicio Cántabro de Salud, 39011, Santander, Spain
| | - Ignacio Varela
- Instituto de Biomedicina y Biotecnología de Cantabria, Universidad de Cantabria-CSIC, 39011, Santander, Spain
| | - Alejandro Balsa
- Servicio de Reumatología, Hospital Universitario La Paz, 28046, Madrid, Spain
| | - Sara Marsal
- Rheumatology Research Group, Vall d'Hebron Research Institute, 08035, Barcelona, Spain
| | - Antonio Fernández-Nebro
- Unidad de Reumatología, Instituto de Investigación Biomédica de Málaga, Hospital Universitario de Málaga, Universidad de Málaga, 29010, Málaga, Spain
| | - Francisco Blanco
- Departamento de Reumatología, Hospital Universitario A Coruña, 15006, A Coruña, Spain
| | - Marcos López-Hoyos
- Sección de Inmunología, Hospital Universitario Marques de Valdecilla-Instituto de Investigación Valdecilla (IDIVAL), Avenida Valdecilla s/n, 39008, Santander, Spain
| | - Víctor Martinez-Taboada
- Servicio de Reumatología, Hospital Universitario Marques de Valdecilla-Instituto de Investigación Valdecilla (IDIVAL), Avenida Valdecilla s/n, 39008, Santander, Spain.,Facultad de Medicina, Universidad de Cantabria, 39011, Santander, Spain
| | - Jose L Fernández-Luna
- Unidad de Genética, Hospital Universitario Marques de Valdecilla-Instituto de Investigación Valdecilla (IDIVAL), Avenida Valdecilla s/n, 39008, Santander, Spain.
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Gene/environment interactions in the pathogenesis of autoimmunity: New insights on the role of Toll-like receptors. Autoimmun Rev 2015; 14:971-83. [DOI: 10.1016/j.autrev.2015.07.006] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Accepted: 07/08/2015] [Indexed: 12/17/2022]
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Davis MLR, LeVan TD, Yu F, Sayles H, Sokolove J, Robinson W, Michaud K, Thiele GM, Mikuls TR. Associations of toll-like receptor (TLR)-4 single nucleotide polymorphisms and rheumatoid arthritis disease progression: an observational cohort study. Int Immunopharmacol 2015; 24:346-352. [PMID: 25573402 DOI: 10.1016/j.intimp.2014.12.030] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2014] [Revised: 12/15/2014] [Accepted: 12/22/2014] [Indexed: 02/05/2023]
Abstract
OBJECTIVE To examine the associations of toll-like receptor (TLR)-4 single nucleotide polymorphisms (SNPs) with disease progression in rheumatoid arthritis (RA). METHODS A total of 1188 RA patients were genotyped for TLR4 SNPs (rs1927911, rs11536878, and rs4986790). Measures of disease activity were examined, including Disease Activity Score-28 (DAS28), Multidimensional Health Assessment Questionnaire (MD-HAQ), Clinical Disease Activity Index (CDAI), and Simplified Disease Activity Index (SDAI). Genetic associations with these longitudinal measures were examined using generalized estimating equations in both univariate and multivariate analyses. Analyses were then stratified by antigen specific anti-citrullinated peptide antibody (ACPA) status including antibody to citrullinated fibrinogen and citrullinated histone H2B. RESULTS Disease activity measures progressed less over time in the homozygous minor allele group of rs1927911 including DAS28 (p<0.001), CDAI (p=0.008), and MD-HAQ (p=0.015) in univariate analysis and DAS28, CDAI and SDAI in multivariate analysis. Disease activity progression among those homozygous for the minor allele tended to be lower in the groups with positive ACPA though major differences by autoantibody status were not identified. There were no associations of TLR4 rs11536878 and rs4986790 SNPs with RA disease activity progression. CONCLUSIONS In this population, TLR4 rs1927911 genotypes are associated with disease activity independent of other covariates.
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Affiliation(s)
- Marshall L R Davis
- University of Nebraska Medical Center, 986270 Nebraska Medical Center, Omaha, NE 68198-6270, USA.
| | - Tricia D LeVan
- University of Nebraska Medical Center, 986270 Nebraska Medical Center, Omaha, NE 68198-6270, USA; Veterans Affairs (VA) Nebraska-Western Iowa Health Care System, 4101 Woolworth Ave, Omaha, NE 68105, USA.
| | - Fang Yu
- University of Nebraska Medical Center, 986270 Nebraska Medical Center, Omaha, NE 68198-6270, USA.
| | - Harlan Sayles
- University of Nebraska Medical Center, 986270 Nebraska Medical Center, Omaha, NE 68198-6270, USA.
| | - Jeremy Sokolove
- Stanford University School of Medicine CCSR, 269 Campus Drive, Stanford, CA 94305, USA.
| | - William Robinson
- Stanford University School of Medicine CCSR, 269 Campus Drive, Stanford, CA 94305, USA.
| | - Kaleb Michaud
- University of Nebraska Medical Center, 986270 Nebraska Medical Center, Omaha, NE 68198-6270, USA.
| | - Geoffrey M Thiele
- University of Nebraska Medical Center, 986270 Nebraska Medical Center, Omaha, NE 68198-6270, USA; Veterans Affairs (VA) Nebraska-Western Iowa Health Care System, 4101 Woolworth Ave, Omaha, NE 68105, USA.
| | - Ted R Mikuls
- University of Nebraska Medical Center, 986270 Nebraska Medical Center, Omaha, NE 68198-6270, USA; Veterans Affairs (VA) Nebraska-Western Iowa Health Care System, 4101 Woolworth Ave, Omaha, NE 68105, USA.
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Association of Toll like receptor Asp299Gly with rheumatoid arthritis risk: a systematic review of case-control studies and meta-analysis. Pathol Res Pract 2014; 211:219-25. [PMID: 25499175 DOI: 10.1016/j.prp.2014.11.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2014] [Revised: 09/25/2014] [Accepted: 11/04/2014] [Indexed: 11/22/2022]
Abstract
OBJECTIVE Rheumatoid arthritis (RA) is thought to be triggered by various genetic and environmental factors. Few human epidemiologic studies demonstrated that single nucleotide polymorphisms (SNPs) in Toll-like receptor (TLR) genes are associated with RA. We aimed to evaluate the effects of TLR polymorphisms on the risk of RA pathogenesis by using a meta-analysis approach. METHODS Following the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) guidelines, a systematic search and meta-analysis of the literature was conducted. We screened the medical literature based on keywords search in MEDLINE and EMBASE 'Toll-like receptor', 'polymorphism', and rheumatoid arthritis. Meta-analyses were performed under the random-effects model by using: (1) recessive, (2) homozygous, (3) dominant, (4) codominant and allele contrast models. RESULTS A total of 3086 cases and 3756 controls in nine studies were included in the meta-analysis. Association between TLR4 Asp299Gly and RA risk was marginally significant [OR = 0.856 (95% CI, 0.716-1.022); P = 0.086] in the homozygous model. AA and GG homozygote genotypes tended to be significant protective factors against RA risk. CONCLUSION Our overall analyses indicated that TLR4 Asp299Gly polymorphism might contribute to RA pathogenesis.
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Taha HA, Sheir RE, Shafy SSA, Mohamed LM. Genotypic analysis of Asp299Gly and Thr399Ile polymorphisms of TLR4 in Egyptian patients with rheumatoid arthritis and systemic lupus erythematosus. THE EGYPTIAN JOURNAL OF INTERNAL MEDICINE 2014. [DOI: 10.4103/1110-7782.132884] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
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Toll-like receptor polymorphisms and rheumatoid arthritis: a systematic review. Rheumatol Int 2013; 34:111-6. [PMID: 23325096 DOI: 10.1007/s00296-013-2666-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2011] [Accepted: 01/04/2013] [Indexed: 10/27/2022]
Abstract
The aim of this study was to determine whether toll-like receptor (TLR) polymorphisms confer susceptibility to rheumatoid arthritis (RA) and influence the clinical characteristics of RA. The authors conducted a systematic review on associations between TLR polymorphisms and RA susceptibility and clinical findings. Meta-analysis was performed if at least three comparisons of an issue were available. A total of 14 studies were included in this systematic review, which included European and Asian studies. Meta-analysis of five European studies showed no association between the TLR4 Asp299Gly (rs4986790) polymorphism and RA (OR for the minor allele = 0.907, 95% CI = 0.755-1.088, p = 0.291). Furthermore, none of these studies found any association between the polymorphism and clinical characteristics. A significant difference between TLR9 rs187084 allele frequencies in RA patients and controls was found in one Turkish study (p = 0.003), and a moderate association between RF positivity and TLR8 rs5741883 was found in an European study (p = 0.001). The numbers of guanine-thymine [(GT)n] repeats in intron II of the TLR2 gene were found a significantly higher S-allele frequency in Korean patients with RA than in controls (30.3 vs. 23.0 %, p = 0.03). This meta-analysis shows lack of an association between the TLR4 Asp299Gly polymorphism and RA. However, our finding suggests the possibility that TLR polymorphisms are associated with the development and clinical characteristics of RA. Because of a paucity of data of the TLR polymorphisms, case-control studies are required to determine whether TLR2, 4, 8, 9 polymorphisms contribute to RA susceptibility or severity in more than 2,000 patients and controls.
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Takano Y, Shi D, Shimizu A, Funayama T, Mashima Y, Yasuda N, Fukuchi T, Abe H, Ideta H, Zheng X, Shiraishi A, Ohashi Y, Nishida K, Nakazawa T, Fuse N. Association of Toll-like receptor 4 gene polymorphisms in Japanese subjects with primary open-angle, normal-tension, and exfoliation glaucoma. Am J Ophthalmol 2012; 154:825-832.e1. [PMID: 22831837 DOI: 10.1016/j.ajo.2012.03.050] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2011] [Revised: 03/29/2012] [Accepted: 03/29/2012] [Indexed: 11/17/2022]
Abstract
PURPOSE To determine whether polymorphisms in the Toll-like receptor 4 (TLR4) gene are associated with primary open-angle glaucoma (POAG), normal-tension glaucoma (NTG), and exfoliation glaucoma (XFG) in Japanese individuals. DESIGN Genetic association study. METHODS SETTING Multicenter study. STUDY POPULATION One hundred eighty-four unrelated Japanese patients with POAG, 365 unrelated patients with NTG, and 109 unrelated patients with XFG from 5 hospitals. PROCEDURES Genomic DNA was extracted from leukocytes of the peripheral blood, and 8 polymorphisms in the TLR4 genes were amplified by polymerase chain reaction (PCR) and directly sequenced. Allele and genotype frequencies and the inferred haplotypes were estimated. MAIN OUTCOME MEASURES Differences in allele and genotype frequencies and haplotypes between subjects with POAG, NTG, and XFG. RESULTS The allele frequency of rs2149356 of the TLR4 gene in the POAG, NTG, and XFG groups was the most significantly different from that of the control group (minor allele frequency 0.446, 0.395, 0.404, vs 0.308; P = .000058, P = .0030, and P = .015). The allele frequencies of the 5 TLR4 SNPs were higher in all of the glaucoma groups than that in the control group. The statistics of genotypes of TLR4 were approximately the same for all allele frequencies. The haplotypic frequencies with Tag SNPs studied earlier showed that only POAG was statistically significant. Other haplotypes, such as rs10759930, rs1927914, rs1927911, and rs2149356, had higher statistical significance (overall P = .00078 in POAG, overall P = .018 in NTG, and overall P = .014 in XFG). CONCLUSIONS This study demonstrated that TLR4 polymorphisms are associated with NTG in the Japanese, and they also play a role in the pathogenesis of POAG and XFG.
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Affiliation(s)
- Yoshimasa Takano
- Department of Ophthalmology, Tohoku University Graduate School of Medicine, Miyagi, Japan
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Emonts M, Hazes MJMW, Houwing-Duistermaat JJ, van der Gaast-de Jongh CE, de Vogel L, Han HKH, Wouters JMGW, Laman JD, Dolhain RJEM. Polymorphisms in genes controlling inflammation and tissue repair in rheumatoid arthritis: a case control study. BMC MEDICAL GENETICS 2011; 12:36. [PMID: 21385363 PMCID: PMC3060109 DOI: 10.1186/1471-2350-12-36] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 05/04/2010] [Accepted: 03/07/2011] [Indexed: 01/05/2023]
Abstract
Background Various cytokines and inflammatory mediators are known to be involved in the pathogenesis of rheumatoid arthritis (RA). We hypothesized that polymorphisms in selected inflammatory response and tissue repair genes contribute to the susceptibility to and severity of RA. Methods Polymorphisms in TNFA, IL1B, IL4, IL6, IL8, IL10, PAI1, NOS2a, C1INH, PARP, TLR2 and TLR4 were genotyped in 376 Caucasian RA patients and 463 healthy Caucasian controls using single base extension. Genotype distributions in patients were compared with those in controls. In addition, the association of polymorphisms with the need for anti-TNF-α treatment as a marker of RA severity was assessed. Results The IL8 781 CC genotype was associated with early onset of disease. The TNFA -238 G/A polymorphism was differentially distributed between RA patients and controls, but only when not corrected for age and gender. None of the polymorphisms was associated with disease severity. Conclusions We here report an association between IL8 781 C/T polymorphism and age of onset of RA. Our findings indicate that there might be a role for variations in genes involved in the immune response and in tissue repair in RA pathogenesis. Nevertheless, additional larger genomic and functional studies are required to further define their role in RA.
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Affiliation(s)
- Marieke Emonts
- Department of Immunology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands.
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Causes of DMARD withdrawal following ADR within 6 months of initiation among Indian rheumatoid arthritis patients. Rheumatol Int 2010; 32:743-8. [PMID: 21161534 DOI: 10.1007/s00296-010-1646-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2010] [Accepted: 11/14/2010] [Indexed: 10/18/2022]
Abstract
The present study was conducted in Indian rheumatoid arthritis (RA) patients prescribed disease-modifying anti-rheumatic drugs (DMARDs) to determine the incidence and type of adverse drug reactions (ADRs) leading to their withdrawal in the initial 6 months of therapy. This was considered important as pharmacogenetic variations in the pattern of RA in different populations and genetic differences in efficacy and safety to drugs demand separate studies to be conducted in different populations. Hospital records were used to identify 1,000 consecutive patients with RA fulfilling the American College of Rheumatology criteria and having at least 6-month follow-up. Age, gender, duration of arthritis, drug usage and ADR-related drug withdrawal were recorded from the charts. Most of the patients were put on single DMARD. Combined use of DMARD was less frequent and non-use of DMARD was common; however, disease control was good. The commonest DMARD used in our hospital was hydroxychloroquine 444 (44%) and the commonest combination used was methotrexate with hydroxychloroquine by 55 (6%). Sulphasalazine use showed preference to young and males. Supportive drugs used were NSAIDs by 883 (88%), corticosteroids by 646 (65%), paracetamol by 594 (59%) and amitriptyline by 88 (9%). Incidence of ADR-related DMARD withdrawal was maximum with leflunomide 2/15 (13.33%) followed by methotrexate 9/116 (7.76%), sulphasalazine 6/185 (3.24%), chloroquine 3/131 (2.29%) and hydroxychloroquine 8/444 (1.8%). Severity and symptomatology of disease, genetic pattern of patients, financial status, previous experience of the clinicians and patients, availability of drugs, patient expectations and compliance were the main factors that lead to a difference in pattern of therapy in our patients compared to other population.
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Coenen MJH, Enevold C, Barrera P, Schijvenaars MMVAP, Toonen EJM, Scheffer H, Padyukov L, Kastbom A, Klareskog L, Barton A, Kievit W, Rood MJ, Jansen TL, Swinkels D, van Riel PLCM, Franke B, Bendtzen K, Radstake TRDJ. Genetic variants in toll-like receptors are not associated with rheumatoid arthritis susceptibility or anti-tumour necrosis factor treatment outcome. PLoS One 2010; 5:e14326. [PMID: 21179534 PMCID: PMC3002281 DOI: 10.1371/journal.pone.0014326] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2010] [Accepted: 11/22/2010] [Indexed: 11/29/2022] Open
Abstract
Background Several studies point to a role of Toll-like receptors (TLRs) in the development of rheumatoid arthritis (RA). We investigated if genetic variants in TLR genes are associated with RA and response to tumour necrosis factor blocking (anti-TNF) medication. Methodology and Principal Findings 22 single nucleotide polymorphisms (SNPs) in seven TLR genes were genotyped in a Dutch cohort consisting of 378 RA patients and 294 controls. Significantly associated variants were investigated in replication cohorts from The Netherlands, United Kingdom and Sweden (2877 RA patients and 2025 controls). 182 of the Dutch patients were treated with anti-TNF medication. Using these patients and a replication cohort (269 Swedish patients) we analysed if genetic variants in TLR genes were associated with anti-TNF outcome. In the discovery phase of the study we found a significant association of SNPs rs2072493 in TLR5 and rs3853839 in TLR7 with RA disease susceptibility. Meta-analysis of discovery and replication cohorts did not confirm these findings. SNP rs2072493 in TLR5 was associated with anti-TNF outcome in the Dutch but not in the Swedish population. Conclusion We conclude that genetic variants in TLRs do not play a major role in susceptibility for developing RA nor in anti-TNF treatment outcome in a Caucasian population.
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Affiliation(s)
- Marieke J H Coenen
- Department of Human Genetics, Radboud University Nijmegen Medical Centre, Institute for Genetic and Metabolic Disease (IGMD), Nijmegen, The Netherlands.
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Clanchy FIL, Sacre SM. Modulation of toll-like receptor function has therapeutic potential in autoimmune disease. Expert Opin Biol Ther 2010; 10:1703-16. [DOI: 10.1517/14712598.2010.534080] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Kooloos WM, Wessels JA, van der Straaten T, Allaart CF, Huizinga TW, Guchelaar HJ. Functional polymorphisms and methotrexate treatment outcome in recent-onset rheumatoid arthritis. Pharmacogenomics 2010; 11:163-75. [PMID: 20136356 DOI: 10.2217/pgs.09.139] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
AIMS Clinical response to methotrexate (MTX) treatment differs among rheumatoid arthritis patients. Genetic variation can partly account for this phenomenon. In this study, functional polymorphisms in genes related to the mechanism of action of MTX or immunopathogenesis of rheumatoid arthritis were studied for association with treatment outcome in a Dutch cohort of patients with early rheumatoid arthritis. Furthermore, tests for replication of previous research on these genetic variants were performed according to reported end points. MATERIALS & METHODS Seven polymorphisms in seven genes were analyzed in 205 genotyped patients with active rheumatoid arthritis. All patients received standardized MTX treatment (< or =25 mg per week orally) combined with folic acid. MTX treatment outcome was evaluated by disease activity score criteria and adverse drug events. The following genetic variants were analyzed and correlated: ABCB1 3435C>T, ITPA IVS2 +21A>C, HLA-G (-14 bp >+14 bp), TGFB1 +869T>C and TLR4 +896A>G. In case of significant differences, regression analyses were applied. Since carriers of the minor alleles of the SNPs DHFR 829C>T and IMPDH2 +787C>T were not observed, no statistical analyses could be performed. RESULTS No significant associations or replications of these genetic variants with MTX efficacy were demonstrated. Regarding toxicity, patients carrying the ABCB1 3435T-allele and TLR4 +896G-allele were 2.5-times more likely to develop adverse drug events at 6 months (odds ratio: 2.6; 95% CI: 1.1-6.2, and odds ratio: 2.5; 95% CI: 1.1-6.1, respectively). Additionally, this chance increased almost fourfold in patients with the two unfavorable genotypes (odds ratio: 3.9; 95% CI: 1.5-10.3). However, none of these associations remained significant after correction for multiple testing (p < 0.004). CONCLUSION Our data indicate that MTX toxicity was potentially associated with ABCB1 3435C>T and TLR4 +896A>G. However, after correction, none of these associations remained significant. Furthermore, no significant associations or replications of these functional variants with efficacy were found.
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Affiliation(s)
- Wouter M Kooloos
- Department of Clinical Pharmacy & Toxicology, Leiden University Medical Center, PO Box 9600, NL 2300 RC Leiden, The Netherlands
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Umemura T, Katsuyama Y, Hamano H, Kitahara K, Takayama M, Arakura N, Kawa S, Tanaka E, Ota M. Association analysis of Toll-like receptor 4 polymorphisms with autoimmune pancreatitis. Hum Immunol 2009; 70:742-6. [PMID: 19500628 DOI: 10.1016/j.humimm.2009.05.009] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2009] [Revised: 05/26/2009] [Accepted: 05/28/2009] [Indexed: 02/07/2023]
Abstract
Autoimmune pancreatitis (AIP) is characterized by lymphoplasmocytic inflammation, high serum IgG4 concentrations, and a favorable response to corticosteroid treatment. Although long-term follow-up studies have shown that a relapse rate of 30-40% can occur in AIP after remission with corticosteroids, there are few genetic characteristic predictors of relapse in AIP patients. Toll-like receptor (TLR) is an important mediator in both innate and adaptive immunity. Polymorphisms in TLR4 gene have been linked with several autoimmune and allergic diseases. We therefore investigated the genetic association between TLR4 polymorphisms and AIP susceptibility and relapse in a Japanese population. Eight SNPs in TLR4 (rs10759930, rs1927914, rs1927911, rs12377632, rs2149356, rs11536889, rs7037117, and rs7045953) were genotyped in 59 patients with AIP and 126 healthy controls using a TaqMan assay. Analysis of allelic frequencies revealed no statistical association with either susceptibility or relapse of AIP. These data indicate that TLR4 polymorphisms do not play an important role in the development of AIP.
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Affiliation(s)
- Takeji Umemura
- Department of Internal Medicine, Division of Gastroenterology and Hepatology, Shinshu University School of Medicine, Matsumoto, Japan
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Horie Y, Meguro A, Ota M, Kitaichi N, Katsuyama Y, Takemoto Y, Namba K, Yoshida K, Song YW, Park KS, Lee EB, Inoko H, Mizuki N, Ohno S. Association of TLR4 polymorphisms with Behcet's disease in a Korean population. Rheumatology (Oxford) 2009; 48:638-42. [DOI: 10.1093/rheumatology/kep077] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
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Jaen O, Petit-Teixeira E, Kirsten H, Ahnert P, Semerano L, Pierlot C, Cornelis F, Boissier MC, Falgarone G. No evidence of major effects in several Toll-like receptor gene polymorphisms in rheumatoid arthritis. Arthritis Res Ther 2009; 11:R5. [PMID: 19134200 PMCID: PMC2688235 DOI: 10.1186/ar2589] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2008] [Revised: 09/23/2008] [Accepted: 01/13/2009] [Indexed: 12/14/2022] Open
Abstract
Introduction The objective was to study the potential genetic contribution of Toll-like receptor (TLR) genes in rheumatoid arthritis (RA). TLRs bind to pathogen-associated molecular patterns, and TLR genes influence both proinflammatory cytokine production and autoimmune responses. Host–pathogen interactions are involved in RA physiopathology. Methods We tested SNPs of five TLR genes (TLR9, TLR2, TLR6, TLR1, and TLR4) in a cohort of 100 French families with RA. Genotypes were analyzed using the transmission disequilibrium test. As TLR2, TLR6, and TLR1 are located on chromosome 4, we determined the haplotype relative risk. Analyses were performed in subgroups defined by status for rheumatoid factor, anti-cyclic citrullinated peptide autoantibodies, and erosions. Results We found no disequilibrium in allele transmission for any of the SNPs of the five TLR genes. In subgroup analyses, no associations were detected linking TLR9, TLR2, or TLR9/TLR2 to rheumatoid factor, anti-cyclic citrullinated peptide autoantibodies, or erosions. Haplotype analysis of the polymorphisms showed no haplotype associations in any of the subgroups. Conclusions We found no evidence of major effects of TLR gene polymorphisms in RA, although we tested different TLR phenotypes. Moreover, no associations were noted with autoantibody production or erosions.
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Affiliation(s)
- Olivier Jaen
- EA-4222, University of Paris 13, Bobigny Cedex, Paris, France.
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Roelofs MF, Abdollahi-Roodsaz S, Joosten LAB, van den Berg WB, Radstake TRDJ. The orchestra of toll-like receptors and their potential role in frequently occurring rheumatic conditions. ACTA ACUST UNITED AC 2008; 58:338-48. [DOI: 10.1002/art.23217] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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