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Zhou Y, Zhu Y, Jiang H, Chen Z, Lu B, Li J, Shen X. Polymorphism rs6478109 in the TNFSF15 gene contributes to the susceptibility to Crohn's disease but not ulcerative colitis: a meta-analysis. J Int Med Res 2020; 48:300060520961675. [PMID: 33026276 PMCID: PMC7545779 DOI: 10.1177/0300060520961675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
Objective Polymorphisms in the tumor necrosis factor superfamily 15 (TNFSF15) gene contribute to susceptibility to inflammatory bowel disease (IBD). However, associations between TNFSF15 rs6478109, rs7869487, and rs7865494 polymorphisms and IBD remain unclear. Methods Eligible articles were retrieved from the PubMed, EMBASE, Web of Science, and CNKI databases through 20 March 2020. Pooled odds ratios (ORs) with 95% confidence intervals (CIs) were calculated to evaluate the relationships of TNFSF15 polymorphisms with IBD susceptibility. Results Under the recessive model, TNFSF15 rs6478109 was associated with IBD risk (OR = 0.56; 95% CI: 0.35, 0.92). Stratification analyses based on the type of disease—Crohn’s disease (CD) or ulcerative colitis (UC)—revealed a significant association under the allelic and recessive models between TNFSF15 rs6478109 and CD (allelic model: OR = 0.84, 95% CI: 0.71, 0.99; recessive model: OR = 0.44, 95% CI: 0.22, 0.87) but not UC. Stratification by ethnicity indicated a significantly decreased risk of IBD in Asian populations with TNFSF15 rs6478109 under the recessive model (OR = 0.56, 95% CI: 0.35, 0.92). Conclusions Our meta-analysis suggested that under the allelic and recessive models, the TNFSF15 rs6478109 polymorphism was likely protective for CD but not UC in the Asian population.
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Affiliation(s)
| | - Yi Zhu
- Yi Zhu, Department of Gastrointestinal Surgery, The Affiliated Hospital of Jiaxing University, No. 1882, Centre South Road, Jiaxing, Zhejiang 314001, China.
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Xu WD, Fu L, Liu XY, Wang JM, Yuan ZC, Su LC, Huang AF. Association between TL1A gene polymorphisms and systemic lupus erythematosus in a Chinese Han population. J Cell Physiol 2019; 234:22543-22553. [PMID: 31081141 DOI: 10.1002/jcp.28818] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2018] [Revised: 03/22/2019] [Accepted: 04/05/2019] [Indexed: 01/28/2023]
Abstract
Our previous studies showed elevated tumor necrosis factor-like ligand 1 aberrance (TL1A) expression in systemic lupus erythematosus (SLE). However, TL1A polymorphisms with SLE susceptibility remain to be elucidated. In addition, we made meta-analysis to evaluate the relationship of TL1A polymorphisms and autoimmune diseases owing to inconsistent results. The present research was carried out by 404 SLE, 150 primary Sjogren's syndrome (pSS) patients, and 574 healthy individuals. Three TL1A polymorphisms (rs3810936, rs6478109, rs7848647) were genotyped using TaqMan genotyping assay. Then, the meta-analysis was performed by collecting the present case-control study and previously published research. Results showed that genotypes of rs3810936, rs7848647 were different between SLE patients and healthy controls, whereas no significant association was observed in the three polymorphisms and pSS patients. Genotypes distribution of rs6478109, rs7848647 were strongly related to lupus nephritis within SLE (p = 0.004, p = 0.011), respectively. Moreover, combined meta-analysis consisted of ten comparative research involving 4,305 patients and 5,600 controls. An association between autoimmune diseases and rs6478109 polymorphism was found. Our findings indicate that gene polymorphisms (rs3810936, rs7848647) of TL1A might correlate with lupus.
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Affiliation(s)
- Wang-Dong Xu
- Department of Evidence-Based Medicine, Southwest Medical University, Luzhou, China
| | - Lu Fu
- Laboratory Animal Center, Southwest Medical University, Luzhou, China
| | - Xiao-Yan Liu
- Department of Evidence-Based Medicine, Southwest Medical University, Luzhou, China
| | - Jia-Min Wang
- Department of Evidence-Based Medicine, Southwest Medical University, Luzhou, China
| | - Zhi-Chao Yuan
- Department of Evidence-Based Medicine, Southwest Medical University, Luzhou, China
| | - Lin-Chong Su
- Department of Rheumatology and Immunology, Hubei Minzu University, Enshi, China
| | - An-Fang Huang
- Department of Rheumatology and Immunology, Affiliated Hospital of Southwest Medical University, Luzhou, China
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Taheri M, Ghandil P, Hashemi SJ, Ghafourian M, Masjedi Zadeh AR, Ghadiri AA. Association study between two polymorphisms of tumor necrosis factor ligand superfamily member 15 (TNFSF15) gene and ulcerative colitis in south-west of Iran. J Cell Biochem 2019; 120:8784-8791. [PMID: 30556168 DOI: 10.1002/jcb.28165] [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: 10/04/2018] [Accepted: 11/08/2018] [Indexed: 01/24/2023]
Abstract
BACKGROUND AND AIMS: Ulcerative colitis (UC) is the most prevalent clinical manifestation of the inflammatory bowel disease (IBD). Several candidate genes have been suggested to be involved in the genetic susceptibility or resistance in the development of UC. Among them, tumor necrosis factor ligand superfamily member 15 (TNFSF15) have been reported in association with IBD in several studies. The aim of this study was to investigate the association of TNFSF15 gene polymorphisms located in the promoter region, including rs6478108 (G/A -9706) and rs3810936 (G/A -15524) in Iranian patients with UC. METHODS: In this way, the two single nucleotide polymorphisms were studied in 115 patients with UC and 115 healthy controls with the same ethnic group from south-west of Iran. The genomic DNA of samples was genotyped using TaqMan Real-time PCR assay. This case-control study was conducted at the Department of Immunology, Jundishapur University of Medical Sciences, Ahvaz, Iran. RESULTS AND CONCLUSION: Our results did not confirm the formerly reported association of the studied polymorphisms with UC disease in comparison with healthy controls, neither with the type of the clinical forms of Colitis in the studied Iranian population. Comparing the genotype frequency of single nucleotide polymorphism (SNP) rs6478108, wild-type homozygous and heterozygote and mutant homozygote were 33%, 55.7%, and 11.3% in cases vs. 34.8%, 50.4%, and 14.8% in the controls (P = 0.6). The genotype frequency of SNP rs3810936 were 20.9%, 40.9%, and 38.2% in the cases compared to 18.3%, 44.3%, and 37.4% in controls, which was not significant ( P = 0.8). As multiple ethnic groups reside in all around the country, further studies using different ethnicities and/or larger sample size are required to clarify the role of these polymorphisms in the genetic susceptibility of UC in Iranian populations.
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Affiliation(s)
- Marzieh Taheri
- Research Center for Infectious Diseases of Digestive System, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.,Department of Immunology, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.,Student Research Committee, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Pegah Ghandil
- Cellular and Molecular Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.,Department of Medical Genetics, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Seyyed Jalal Hashemi
- Research Center for Infectious Diseases of Digestive System, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Mehri Ghafourian
- Department of Immunology, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.,Infectious and Tropical Disease Research Center, Health Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Abdol Rahim Masjedi Zadeh
- Research Center for Infectious Diseases of Digestive System, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Ata Allah Ghadiri
- Research Center for Infectious Diseases of Digestive System, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.,Department of Immunology, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.,Cellular and Molecular Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.,Air Pollution and Respiratory Diseases Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
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Genetics of ulcerative colitis: putting into perspective the incremental gains from Indian studies. J Genet 2018. [DOI: 10.1007/s12041-018-1015-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Bittner S, Ehrenschwender M. Multifaceted death receptor 3 signaling-promoting survival and triggering death. FEBS Lett 2017; 591:2543-2555. [DOI: 10.1002/1873-3468.12747] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Revised: 06/24/2017] [Accepted: 07/03/2017] [Indexed: 02/06/2023]
Affiliation(s)
- Sebastian Bittner
- Institute of Clinical Microbiology and Hygiene; University Hospital Regensburg; Germany
| | - Martin Ehrenschwender
- Institute of Clinical Microbiology and Hygiene; University Hospital Regensburg; Germany
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Peng LL, Wang Y, Zhu FL, Xu WD, Ji XL, Ni J. IL-23R mutation is associated with ulcerative colitis: A systemic review and meta-analysis. Oncotarget 2017; 8:4849-4863. [PMID: 27902482 PMCID: PMC5354875 DOI: 10.18632/oncotarget.13607] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Accepted: 11/12/2016] [Indexed: 02/05/2023] Open
Abstract
OBJECTIVES Since a genome-wide association study revealed that Interleukin-23 receptor (IL-23R) gene is a candidate gene for Ulcerative Colitis (UC), many studies have investigated the association between the IL-23R polymorphisms and UC. However, the results were controversial. The aim of the study was to determine whether the IL-23R polymorphisms confer susceptibility to UC. METHODS A systematic literature search was carried out to identify all potentially relevant studies. Pooled odds ratios (ORs) with 95% confidence intervals (CIs) were used to estimate the strength of association. RESULTS A total of 33 studies in 32 articles, including 10,527 UC cases and 15,142 healthy controls, were finally involved in the meta-analysis. Overall, a significant association was found between all UC cases and the rs11209026A allele (OR = 0.665, 95% CI = 0.604~0.733, P < 0.001). Similarly, meta-analyses of the rs7517847, rs1004819, rs10889677, rs2201841, rs11209032, rs1495965, rs1343151 and rs11465804 polymorphisms also indicated significant association with all UC (all P < 0.05). Stratification by ethnicity revealed that the rs11209026, rs7517847, rs10889677, rs2201841 andrs11465804 polymorphisms were associated with UC in the Caucasian group, but not in Asians, while the rs1004819 and rs11209032 polymorphisms were found to be related to UC for both Caucasian and Asian groups. However, subgroup analysis failed to unveil any association between the rs1495965 and rs1343151 polymorphisms and UC in Caucasians or Asians. CONCLUSIONS The meta-analysis suggests significant association between IL-23R polymorphisms and UC, especially in Caucasians.
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Affiliation(s)
- Ling-Long Peng
- Department of Science and Education, The Second People's Hospital of Wuhu, Wuhu, Anhui 241000, China
| | - Ying Wang
- Department of Environmental Health, Suzhou Municipal Center for Disease Prevention and Control, Suzhou, Jiangsu 215004, China
| | - Feng-Ling Zhu
- Department of Science and Education, The Second People's Hospital of Wuhu, Wuhu, Anhui 241000, China
| | - Wang-Dong Xu
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Xue-Lei Ji
- Department of Science and Education, The Second People's Hospital of Wuhu, Wuhu, Anhui 241000, China
| | - Jing Ni
- The Teaching Centre for Preventive Medicine, School of Public Health, Anhui Medical University, Hefei, Anhui 230032, China
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Tougaard P, Zervides KA, Skov S, Hansen AK, Pedersen AE. Biologics beyond TNF-αinhibitors and the effect of targeting the homologues TL1A-DR3 pathway in chronic inflammatory disorders. Immunopharmacol Immunotoxicol 2016; 38:29-38. [DOI: 10.3109/08923973.2015.1130721] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Identification of Ten Additional Susceptibility Loci for Ulcerative Colitis Through Immunochip Analysis in Koreans. Inflamm Bowel Dis 2016; 22:13-9. [PMID: 26398853 DOI: 10.1097/mib.0000000000000584] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
BACKGROUND Recent genetic association studies identified more than 160 susceptibility loci for inflammatory bowel disease in Caucasian populations, but studies in Asian populations are limited. We have previously reported 3 loci associated with Korean ulcerative colitis (UC). METHODS Using the Immunochip custom single nucleotide polymorphisms (SNP) array designed for dense genotyping of 186 known disease loci from 12 immune-mediated diseases, we analyzed 705 patients with UC and 1178 controls for 536,821 SNPs (89,057 genotyped and 447,764 imputed) in the discovery stage followed by replication in additional 980 affected individuals and 2694 controls in a Korean population. RESULTS We confirmed the associations of 10 known UC risk loci in Koreans: rs76418789 in IL23R (combined P = 1.25 × 10), rs4728142 in IRF5 (combined P = 3.17 × 10), rs1830610 near JAK2 (combined P = 2.28 × 10), rs1555791 near TNFRSF14 (combined P = 1.62 × 10), rs880790 between IL10-IL19 (combined P = 3.73 × 10), rs10185424 between IL1R2-IL1R1 (combined P = 1.54 × 10), rs6478108 in TNFSF15 (combined P = 9.28 × 10), rs861857 between UBE2L3-YDJC (combined P = 3.05 × 10), rs1801274 in FCGR2A (discovery P = 1.54 × 10), and rs17085007 between GPR12-USP12 (discovery P = 3.64 × 10). The percentage of phenotype variance explained by the 13 risk loci (including 3 previously reported loci) was 5.61% in Koreans (on the liability scale, population prevalence = 0.0308%). CONCLUSIONS Our study increased the number of UC susceptibility loci in Koreans to 13 and highlighted the extensive sharing of genetic risk across populations of UC.
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Yang DH, Yang SK, Song K, Hong M, Park SH, Lee HS, Kim JB, Lee HJ, Park SK, Jung KW, Kim KJ, Ye BD, Byeon JS, Myung SJ, Kim JH, Shin US, Yu CS, Lee I. TNFSF15 is an independent predictor for the development of Crohn's disease-related complications in Koreans. J Crohns Colitis 2014; 8:1315-26. [PMID: 24835165 DOI: 10.1016/j.crohns.2014.04.002] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2014] [Revised: 03/22/2014] [Accepted: 04/04/2014] [Indexed: 02/08/2023]
Abstract
BACKGROUND Crohn's disease (CD) is a chronic idiopathic inflammatory bowel disease involving the whole gastrointestinal tract. TNFSF15 has been proved as a susceptibility gene for CD, but there are few reports about the association between TNFSF15 single nucleotide polymorphisms (SNPs) and the clinical course of CD. AIM To investigate the association between TNFSF15 genotypes and the clinical course of CD in Koreans. METHODS A total of 906 CD patients having TNFSF15 genotype data and clinical information were recruited from CD registry database of a tertiary referral center. The association between five TNFSF15 SNPs (rs4574921, rs3810936, rs6478108, rs6478109, and rs7848647) and various clinical parameters including stricture, non-perianal penetrating complications, bowel resection, and reoperation was investigated. RESULTS Among the five SNPs, rs6478108 CC genotype was associated with the development of stricture and non-perianal penetrating complications during follow-up (HR for stricture=1.706, 95% confidence interval 1.178-2.471, P=0.005; HR for non-perianal penetrating complications=1.667, 95% confidence interval 1.127-2.466, P=0.010), and rs4574921 CC genotype was associated with the development of perianal fistula (HR=2.386, 95% confidence interval 1.204-4.727, P=0.013) by multivariate analysis. However, there was no significant association of cumulative operation and reoperation rate with 5 SNPs of TNFSF15. CONCLUSION In Korean patients with CD, non-risk allele homozygotes of TNFSF15 SNPs rs6478108 and rs4574921 are independent genetic predictive factors for the development of strictures/non-perianal penetrating complications and perianal fistula, respectively.
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Affiliation(s)
- Dong-Hoon Yang
- Department of Gastroenterology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, South Korea
| | - Suk-Kyun Yang
- Department of Gastroenterology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, South Korea.
| | - Kyuyoung Song
- Department of Biochemistry and Molecular Biology, University of Ulsan College of Medicine, Seoul, South Korea.
| | - Myunghee Hong
- Department of Biochemistry and Molecular Biology, University of Ulsan College of Medicine, Seoul, South Korea
| | - Sang Hyoung Park
- Department of Gastroenterology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, South Korea
| | - Ho-Su Lee
- Department of Gastroenterology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, South Korea
| | - Ji-Beom Kim
- Department of Gastroenterology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, South Korea
| | - Hyo Jeong Lee
- Department of Gastroenterology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, South Korea
| | - Soo-Kyung Park
- Department of Gastroenterology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, South Korea
| | - Kee Wook Jung
- Department of Gastroenterology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, South Korea
| | - Kyung-Jo Kim
- Department of Gastroenterology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, South Korea
| | - Byong Duk Ye
- Department of Gastroenterology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, South Korea
| | - Jeong-Sik Byeon
- Department of Gastroenterology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, South Korea
| | - Seung-Jae Myung
- Department of Gastroenterology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, South Korea
| | - Jin-Ho Kim
- Department of Gastroenterology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, South Korea
| | - Ui Sup Shin
- Department of Surgery, Korea Institute of Radiological and Medical Sciences, Korea Cancer Center Hospital, Seoul, South Korea
| | - Chang Sik Yu
- Department of Colon and Rectal Surgery, University of Ulsan College of Medicine, Asan Medical Center, Seoul, South Korea
| | - Inchul Lee
- Department of Pathology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, South Korea
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Zhang J, Zhang J, Wu D, Wang J, Dong W. Associations between TNFSF15 polymorphisms and susceptibility to ulcerative colitis and Crohn's disease: A meta-analysis. Autoimmunity 2014; 47:512-8. [DOI: 10.3109/08916934.2014.930735] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Jixiang Zhang
- Department of Gastroenterology, Renmin Hospital of Wuhan University
Wuhan, Hubei ProvinceChina
| | - Jihui Zhang
- Advanced Training Center of State Grid Corporation of China
Sibozi, Qinghe, Haidian District, BeijingChina
| | - Dandan Wu
- Department of Gastroenterology, Renmin Hospital of Wuhan University
Wuhan, Hubei ProvinceChina
| | - Jun Wang
- Department of Gastroenterology, Renmin Hospital of Wuhan University
Wuhan, Hubei ProvinceChina
| | - Weiguo Dong
- Department of Gastroenterology, Renmin Hospital of Wuhan University
Wuhan, Hubei ProvinceChina
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Yang SK, Hong M, Zhao W, Jung Y, Baek J, Tayebi N, Kim KM, Ye BD, Kim KJ, Park SH, Lee I, Lee EJ, Kim WH, Cheon JH, Kim YH, Jang BI, Kim HS, Choi JH, Koo JS, Lee JH, Jung SA, Lee YJ, Jang JY, Shin HD, Kang D, Youn HS, Liu J, Song K. Genome-wide association study of Crohn's disease in Koreans revealed three new susceptibility loci and common attributes of genetic susceptibility across ethnic populations. Gut 2014; 63:80-7. [PMID: 23850713 DOI: 10.1136/gutjnl-2013-305193] [Citation(s) in RCA: 138] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
OBJECTIVE Crohn's disease (CD) is an intractable inflammatory bowel disease (IBD) of unknown cause. Recent meta-analysis of the genome-wide association studies (GWAS) and Immunochip data identified 163 susceptibility loci to IBD in Caucasians, however there are limited studies in other populations. METHODS We performed a GWAS and two validation studies in the Korean population comprising a total of 2311 patients with CD and 2442 controls. RESULTS We confirmed four previously reported loci: TNFSF15, IL23R, the major histocompatibility complex region, and the RNASET2-FGFR1OP-CCR6 region. We identified three new susceptibility loci at genome-wide significance: rs6856616 at 4p14 (OR=1.43, combined p=3.60×10(-14)), rs11195128 at 10q25 (OR=1.42, combined p=1.55×10(-10)) and rs11235667 at 11q13 (OR=1.46, combined p=7.15×10(-9)), implicating ATG16L2 and/or FCHSD2 as novel susceptibility genes for CD. Further analysis of the 11q13 locus revealed a non-synonymous single nucleotide polymorphism (SNP) (R220W/rs11235604) in the evolutionarily conserved region of ATG16L2 with stronger association (OR=1.61, combined p=2.44×10(-12)) than rs11235667, suggesting ATG16L2 as a novel susceptibility gene for CD and rs11235604 to be a potential causal variant of the association. Two of the three SNPs (rs6856616 (p=0.00024) and rs11195128 (p=5.32×10(-5))) showed consistent patterns of association in the International IBD Genetics Consortium dataset. Together, the novel and replicated loci accounted for 5.31% of the total genetic variance for CD risk in Koreans. CONCLUSIONS Our study provides new biological insight to CD and supports the complementary value of genetic studies in different populations.
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Affiliation(s)
- Suk-Kyun Yang
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, , Seoul, Korea
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Park SH, Yang SK, Hong SM, Park SK, Kim JW, Lee HJ, Yang DH, Jung KW, Kim KJ, Ye BD, Byeon JS, Myung SJ, Kim JH. Severe disease activity and cytomegalovirus colitis are predictive of a nonresponse to infliximab in patients with ulcerative colitis. Dig Dis Sci 2013; 58:3592-9. [PMID: 23979435 DOI: 10.1007/s10620-013-2828-1] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2013] [Accepted: 07/27/2013] [Indexed: 12/13/2022]
Abstract
BACKGROUND AND AIMS The role of infliximab in the treatment of patients with ulcerative colitis (UC) in Asia is still unclear. The aim of this study was to evaluate the clinical outcomes of infliximab therapy in Korean UC patients, including efficacy and predictors of response. METHODS Patients who received infliximab induction therapy for moderate to severe UC at Asan Medical Center were retrospectively analyzed. The demographic characteristics of these patients and their clinical outcomes following infliximab therapy were evaluated. RESULTS Of the 89 UC patients receiving infliximab induction therapy, 53 (59.6%) were steroid-refractory and 36 (40.4%) were steroid-dependent. At the initiation of infliximab, the median Mayo score was 9 (range 7-12). After the induction therapy of infliximab, 59 patients (66.3%) demonstrated a clinical response at week 8, of which 29 (32.6%) were determined to be in clinical remission. A colectomy was performed within 1 year after infliximab initiation in 11 (36.7%) of 30 patients who displayed no clinical response to infliximab therapy, but in none of the 59 patients who showed a response to this drug (p<0.001). Multivariate regression analysis identified severe disease (Mayo score≥11) at the initiation of infliximab (p=0.007) and history of cytomegalovirus colitis within 3 months prior to infliximab treatment (p=0.001) as independent positive predictors of nonresponse to infliximab. CONCLUSIONS The efficacy of infliximab in Korean UC patients seems to be similar to that of previously published Western reports. Severe disease and a history of cytomegalovirus colitis are predictors of a nonresponse to infliximab.
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Affiliation(s)
- Sang Hyoung Park
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-gu, Seoul, 138-736, Korea
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Yang SK, Hong M, Zhao W, Jung Y, Tayebi N, Ye BD, Kim KJ, Park SH, Lee I, Shin HD, Cheong HS, Kim LH, Kim HJ, Jung SA, Kang D, Youn HS, Liu J, Song K. Genome-wide association study of ulcerative colitis in Koreans suggests extensive overlapping of genetic susceptibility with Caucasians. Inflamm Bowel Dis 2013; 19:954-66. [PMID: 23511034 DOI: 10.1097/mib.0b013e3182802ab6] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND Recent genome-wide association studies and meta-analyses have identified 47 susceptibility loci for ulcerative colitis (UC) in Caucasian populations. A previous genome-wide association study of UC in a Japanese population suggested marginal sharing of susceptibility loci between Caucasian and Asian populations. We performed a genome-wide association studies to identify UC susceptibility loci in a Korean population and further comparative study. METHODS We analyzed 581,060 autosomal single-nucleotide polymorphisms (SNPs) in 388 individuals with UC and 739 control subjects in the discovery stage. For the validation, 64 suggestive SNPs were analyzed in an additional 417 affected individuals and 732 control subjects. RESULTS Three genetic loci were validated for significant association, and all were previously reported in Caucasians including the major histocompatibility complex region (top SNP, rs9271366; P = 1.03 × 10(-18), odds ratio [OR] = 2.10), 16q24.1 (rs16940186; P = 4.39 × 10(-10), OR = 1.56), and RNF186-OTUD3-PLA2G2E at chromosome arm 1p36.13 (top SNP, rs4654903 in OTUD3; P = 7.43 × 10(-9), OR = 0.64). Although failed to reach genome-wide statistical significance, 2 additional loci previously reported in Caucasians including rs17085007 at chromosome arm 13q12 and JAK2 at chromosome arm 9p24 were significant after Bonferroni correction (P(corrected) = 0.0016 and P(corrected) = 0.0056, respectively). FOS, UBE2L3, the JAK2 gene region, and rs1297265 at chromosome arm 21q21.1 likely play a role in both Crohn's disease and UC. CONCLUSIONS Our data support the biologic significance of the overlapping loci for UC between Caucasian and Korean populations. Our data suggest that genetic associations for UC tend to overlap more extensively among different ethnic groups than those for Crohn's disease, which shows well-established dependence on ethnicity.
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Affiliation(s)
- Suk-Kyun Yang
- Department of Gastroenterology, Asan Medical Center, Seoul, South Korea
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Cheon JH. Genetics of inflammatory bowel diseases: a comparison between Western and Eastern perspectives. J Gastroenterol Hepatol 2013. [PMID: 23189979 DOI: 10.1111/jgh.12053] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Inflammatory bowel disease (IBD) is a chronic relapsing intestinal inflammatory disorder with unidentified causes. Currently, studies indicate that IBD results from a complex interplay between various genetic and environmental factors that produce intestinal inflammation. However, these factors may differ for Asians and Caucasians. Thus, differences in epidemiology, genetic variants, and clinical phenotypes of IBD have been observed between the two populations. Understanding the discrepancies between data from populations with different genetic backgrounds and environmental factors may reveal fundamental aspects of IBD pathogenesis. Accordingly, this review will summarize the current knowledge of IBD genetics studied in Asian countries and compare it with that from Western countries, with special focus on innate bacterial sensing, autophagy, and the interleukin-23 receptor-T helper cell 17 pathway. The epigenetic nature of IBD pathogenesis as well as the pharmacogenetics related to the use of immunomodulators will also be briefly covered.
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Affiliation(s)
- Jae Hee Cheon
- Department of Internal Medicine and Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Korea.
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Lv C, Yang X, Zhang Y, Zhao X, Chen Z, Long J, Zhang Y, Zhong C, Zhi J, Yao G, Jiang B, Zhi F. Confirmation of three inflammatory bowel disease susceptibility loci in a Chinese cohort. Int J Colorectal Dis 2012; 27:1465-72. [PMID: 22426692 DOI: 10.1007/s00384-012-1450-6] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/29/2012] [Indexed: 02/04/2023]
Abstract
PURPOSE Recent genome-wide association studies have identified a number of inflammatory bowel diseases (IBD) susceptibility loci in White populations. The aim of our study was to evaluate whether these susceptibility loci also existed in a Chinese Han IBD population. METHODS Peripheral blood DNA samples from groups of patients with Crohn's disease (CD) (n = 48), ulcerative colitis (UC) (n = 49), and healthy controls (n = 50) were genotyped for eight genes. Then, an extended analysis of the relationship between genotype and phenotype was performed. RESULTS NOD2-P268S (P = 0.025) was found to contribute susceptibility to CD in the Chinese population. IL23R-rs11805303 was detected to confer a strong protective effect against UC (P = 0.010), whereas PTPN2-rs2542151 was significantly associated with an increased risk of UC (P = 0.001). Further phenotype-genotype analysis revealed that P268S was associated with early age of onset (P = 0.028), ileal disease (P = 0.003), and enteric cavity narrowing (P = 0.007). CONCLUSIONS The study indicates that IL23R-rs11805303 and PTPN2-rs2542151 might contribute to the development of UC and NOD2-P268S might be involved in the etiology of CD in the Chinese Han population.
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Affiliation(s)
- Chaolan Lv
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
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