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Ramu D, Ramaswamy S, Rao S, Paul SFD. The worldwide prevalence of latent autoimmune diabetes of adults among adult-onset diabetic individuals: a systematic review and meta-analysis. Endocrine 2023; 82:28-41. [PMID: 37428296 DOI: 10.1007/s12020-023-03424-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 06/10/2023] [Indexed: 07/11/2023]
Abstract
PURPOSE The actual global burden of Latent Autoimmune Diabetes of Adults (LADA) remains unknown even though its prevalence is almost equal to the type 1 form of diabetes. Hence the present systematic review and meta-analysis were performed to estimate the prevalence of LADA among diabetic individuals using the studies published at global levels. METHODS A comprehensive literature revival was performed to identify articles on the prevalence of LADA published till 2023. The prevalence estimates were calculated using DerSimonian and Laird random-effects models with a heterogeneity measure by Cochrane Q and I2 statistics. Publication bias was assessed by the Doi plot and Luis Furuya-Kanamori asymmetry index (LFKindex). P < 0.05 was considered statistically significant. RESULTS The overall pooled prevalence of LADA obtained from a total of 51,725 diabetic individuals was found to be 8.9% (95%CI 7.5-10.4, P < 0.001) with a prevalence range of 2.3% in to 18.9% in United Arab Emirates and Bahrain respectively. Subgroup analysis of LADA in the context of the IDF geographic regions showed a higher prevalence in North America (13.5%), 9.5% in Middle East and North Africa, 9.4% in Africa, 9.2% in South East Asia, 8.3% in Western Pacific and the lowest prevalence of 7.0% in Europe. CONCLUSION The Meta-analysis revealed a worldwide prevalence of LADA as 8.9%, with the highest prevalence in Bahrain and the lowest in United Arab Emirates. Further, the higher prevalence in some IDF regions and the inconsistent association between socioeconomic status and LADA recommend more research in the future.
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Affiliation(s)
- Deepika Ramu
- Department of Human Genetics, Sri Ramachandra Institute of Higher Education and Research, Chennai, India
| | | | - Suresh Rao
- Department of Engineering Design, Indian Institute of Technology- Madras, Chennai, India
| | - Solomon F D Paul
- Department of Human Genetics, Sri Ramachandra Institute of Higher Education and Research, Chennai, India.
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Menchaca-Tapia PA, Marín-Rosales M, Salazar-Camarena DC, Cruz A, Oregon-Romero E, Tapia-Llanos R, Muñoz-Valle JF, Palafox-Sánchez CA. Analysis of PTPN22 -1123 G>C, +788 G>A and +1858 C>T Polymorphisms in Patients with Primary Sjögren's Syndrome. Diagnostics (Basel) 2023; 13:diagnostics13050899. [PMID: 36900045 PMCID: PMC10001387 DOI: 10.3390/diagnostics13050899] [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: 11/30/2022] [Revised: 02/01/2023] [Accepted: 02/21/2023] [Indexed: 03/06/2023] Open
Abstract
BACKGROUND Primary Sjögren's syndrome (pSS) is an autoimmune exocrinopathy characterized by lymphocytic infiltration, glandular dysfunction and systemic manifestations. Lyp protein is a negative regulator of the T cell receptor encoded by the tyrosine phosphatase nonreceptor-type 22 (PTPN22) gene. Multiple single-nucleotide polymorphisms (SNPs) in the PTPN22 gene have been associated with susceptibility to autoimmune diseases. This study aimed to investigate the association of PTPN22 SNPs rs2488457 (-1123 G>C), rs33996649 (+788 G>A), rs2476601 (+1858 C>T) with pSS susceptibility in Mexican mestizo subjects. METHODS One hundred fifty pSS patients and 180 healthy controls (HCs) were included. Genotypes of PTPN22 SNPs were identified by PCR-RFLP. PTPN22 expression was evaluated through RT-PCR analysis. Serum anti-SSA/Ro and anti-SSB/La levels were measured using an ELISA kit. RESULTS Allele and genotype frequencies for all SNPs studied were similar in both groups (p > 0.05). pSS patients showed 17-fold higher expression of PTNP22 than HCs, and mRNA levels correlated with SSDAI score (r2 = 0.499, p = 0.008) and levels of anti-SSA/Ro and anti-SSB/La autoantibodies (r2 = 0.200, p = 0.03 and r2 = 0.175, p = 0.04, respectively). Positive anti-SSA/Ro pSS patients expressed higher PTPN22 mRNA levels (p = 0.008), with high focus scores by histopathology (p = 0.02). Moreover, PTPN22 expression had high diagnostic accuracy in pSS patients, with an AUC = 0.985. CONCLUSIONS Our findings demonstrate that the PTPN22 SNPs rs2488457 (-1123 G>C), rs33996649 (+788 G>A) and rs2476601 (+1858 C>T) are not associated with the disease susceptibility in the western Mexican population. Additionally, PTPN22 expression may be helpful as a diagnostic biomarker in pSS.
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Affiliation(s)
- Paula Annahi Menchaca-Tapia
- Doctorado en Ciencias Biomédicas, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara 44340, Mexico
- Instituto de Investigación en Ciencias Biomédicas, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara 44340, Mexico
| | - Miguel Marín-Rosales
- Servicio de Reumatología, Hospital General de Occidente, Secretaria de Salud Jalisco, Guadalajara 45170, Mexico
- Grupo de Inmunología Molecular, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara 44340, Mexico
| | - Diana Celeste Salazar-Camarena
- Grupo de Inmunología Molecular, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara 44340, Mexico
| | - Alvaro Cruz
- Instituto de Investigación en Ciencias Biomédicas, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara 44340, Mexico
| | - Edith Oregon-Romero
- Instituto de Investigación en Ciencias Biomédicas, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara 44340, Mexico
| | - Raziel Tapia-Llanos
- Instituto de Investigación en Ciencias Biomédicas, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara 44340, Mexico
| | - José Francisco Muñoz-Valle
- Instituto de Investigación en Ciencias Biomédicas, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara 44340, Mexico
| | - Claudia Azucena Palafox-Sánchez
- Instituto de Investigación en Ciencias Biomédicas, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara 44340, Mexico
- Grupo de Inmunología Molecular, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara 44340, Mexico
- Correspondence: ; Tel.: +52-33-3815-0611
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Qiu J, Xiao Z, Zhang Z, Luo S, Zhou Z. Latent autoimmune diabetes in adults in China. Front Immunol 2022; 13:977413. [PMID: 36090989 PMCID: PMC9454334 DOI: 10.3389/fimmu.2022.977413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Accepted: 08/08/2022] [Indexed: 11/30/2022] Open
Abstract
Latent autoimmune diabetes in adults (LADA) is a type of diabetes caused by slow progression of autoimmune damage to pancreatic beta cells. According to the etiological classification, LADA should belong to the autoimmune subtype of type 1 diabetes (T1D). Previous studies have found general immune genetic effects associated with LADA, but there are also some racial differences. Multicenter studies have been conducted in different countries worldwide, but it is still unclear how the Chinese and Caucasian populations differ. The epidemiology and phenotypic characteristics of LADA may vary between Caucasian and Chinese diabetic patients as lifestyle, food habits, and body mass index differ between these two populations. The prevalence of LADA in China has reached a high level compared to other countries. The prevalence of LADA in China has reached a high level compared to other countries, and the number of patients with LADA ranks first in the world. Previous studies have found general immune genetic effects associated with LADA, but some racial differences also exist. The prevalence of LADA among newly diagnosed type 2 diabetes patients over the age of 30 years in China is 5.9%, and LADA patients account for 65% of the newly diagnosed T1D patients in the country. As a country with a large population, China has many people with LADA. A summary and analysis of these studies will enhance further understanding of LADA in China. In addition, comparing the similarities and differences between the Chinese and the Caucasian population from the perspectives of epidemiology, clinical, immunology and genetics will help to improve the understanding of LADA, and then promote LADA studies in individual populations.
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Tizaoui K, Shin JI, Jeong GH, Yang JW, Park S, Kim JH, Hwang SY, Park SJ, Koyanagi A, Smith L. Genetic Polymorphism of PTPN22 in Autoimmune Diseases: A Comprehensive Review. Medicina (B Aires) 2022; 58:medicina58081034. [PMID: 36013501 PMCID: PMC9415475 DOI: 10.3390/medicina58081034] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 07/23/2022] [Accepted: 07/26/2022] [Indexed: 12/04/2022] Open
Abstract
It is known that the etiology and clinical outcomes of autoimmune diseases are associated with a combination of genetic and environmental factors. In the case of the genetic factor, the SNPs of the PTPN22 gene have shown strong associations with several diseases. The recent exploding numbers of genetic studies have made it possible to find these associations rapidly, and a variety of autoimmune diseases were found to be associated with PTPN22 polymorphisms. Proteins encoded by PTPN22 play a key role in the adaptative and immune systems by regulating both T and B cells. Gene variants, particularly SNPs, have been shown to significantly disrupt several immune functions. In this review, we summarize the mechanism of how PTPN22 and its genetic variants are involved in the pathophysiology of autoimmune diseases. In addition, we sum up the findings of studies reporting the genetic association of PTPN22 with different types of diseases, including type 1 diabetes mellitus, systemic lupus erythematosus, juvenile idiopathic arthritis, and several other diseases. By understanding these findings comprehensively, we can explain the complex etiology of autoimmunity and help to determine the criteria of disease diagnosis and prognosis, as well as medication developments.
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Affiliation(s)
- Kalthoum Tizaoui
- Department of Basic Sciences, Division of Histology and Immunology, Faculty of Medicine Tunis, Tunis El Manar University, Tunis 2092, Tunisia;
| | - Jae Il Shin
- Department of Pediatrics, Yonsei University College of Medicine, Seoul 03722, Korea;
| | - Gwang Hun Jeong
- College of Medicine, Gyeongsang National University, Jinju 52727, Korea;
| | - Jae Won Yang
- Department of Nephrology, Yonsei University Wonju College of Medicine, Wonju 26426, Korea;
| | - Seoyeon Park
- Yonsei University College of Medicine, Seoul 06273, Korea; (S.P.); (S.Y.H.)
| | - Ji Hong Kim
- Department of Pediatrics, Yonsei University College of Medicine, Seoul 03722, Korea;
- Correspondence: ; Tel.: +82-2-2019-3352; Fax: +82-2-3461-9473
| | - Soo Young Hwang
- Yonsei University College of Medicine, Seoul 06273, Korea; (S.P.); (S.Y.H.)
| | - Se Jin Park
- Department of Pediatrics, Eulji University School of Medicine, Daejeon 35233, Korea;
| | - Ai Koyanagi
- Research and Development Unit, Parc Sanitari Sant Joan de Déu, CIBERSAM, Dr. Antoni Pujadas, 42, Sant Boi de Llobregat, 08830 Barcelona, Spain;
- ICREA, Pg. Lluis Companys 23, 08010 Barcelona, Spain
| | - Lee Smith
- Centre for Health Performance and Wellbeing, Anglia Ruskin University, Cambridge CB1 1PT, UK;
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Abstract
PURPOSE OF REVIEW Diabetes is a spectrum of clinical manifestations, including latent autoimmune diabetes in adults (LADA). However, it has been questioned whether LADA exists or simply is a group of misclassified type 1 diabetes (T1D) and type 2 diabetes (T2D) patients. This review will provide an updated overview of the genetics of LADA, highlight what genetics tell us about LADA as a diabetes subtype, and point to future directions in the study of LADA. RECENT FINDINGS Recent studies have verified the genetic overlap between LADA and both T1D and T2D and have contributed identification of a novel LADA-specific locus, namely, PFKFB3, and subtype-specific signatures in the HLA region. Genetic risk scores comprising T1D-risk variants have been shown to be a promising tool for discriminating diabetes subtypes and identifying patients rapidly progressing to insulin dependence. Genetic data support the existence of LADA, but further studies are needed to fully determine the place of LADA in the diabetes spectrum.
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Affiliation(s)
- Mette K Andersen
- The Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3B, DK-2200, Copenhagen N, Denmark.
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Ramu D, Perumal V, Paul SFD. Association of common type 1 and type 2 diabetes gene variants with latent autoimmune diabetes in adults: A meta-analysis. J Diabetes 2019; 11:484-496. [PMID: 30456822 DOI: 10.1111/1753-0407.12879] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Revised: 11/09/2018] [Accepted: 11/13/2018] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND The aim of this meta-analysis was to determine the association of common type 1 diabetes (T1D) and type 2 diabetes (T2D) gene variants (protein tyrosine phosphatase non-receptor 22 [PTPN22] rs2476601C/T, insulin [INS] rs689A/T and transcription factor 7-like 2 [TCF7L2] rs7903146C/T) with latent autoimmune diabetes in adults (LADA). METHODS A systematic search of electronic databases was conducted up to 2017 and data from 16 independent case-control studies for three gene variants were pooled. The pooled allele and genotype frequencies for each T1D and T2D gene variant were used to calculate odds ratios (ORs) with 95% confidence intervals (CIs) to assess the strength of the association. Heterogeneity tests and evaluation of publication bias were performed for all studies. RESULTS In all, 8869 cases and 20 829 controls pooled from 16 case-control studies were included in the analysis. For rs2476601, a significant association was found for homozygote TT (OR 2.67; 95% CI 1.92-3.70; P < 0.0001), heterozygote CT (OR 1.61; 95% CI 1.44-1.79; P < 0.0001), and the T allele (OR 1.62; 95% CI 1.48-1.78; P < 0.0001). Overall, a significant inverse association was observed for rs689 in the TT genotype (OR 0.43; 95% CI 0.30-0.64; P < 0.0001), AT genotype (OR 0.53; 95% CI 0.45-0.62; P < 0.0001), and T allele (OR 0.61; 95% CI 0.52-0.71; P < 0.0001). For the rs7903146 polymorphism, the T allele (OR 1.19; 95% CI 1.00-1.40; P = 0.04) may be associated with the risk of LADA. CONCLUSION The rs2476601C/T, rs689A/T, and rs7903146C/T polymorphisms were found to be associated with the risk of LADA, thereby indicating that, genetically, LADA could be an admixture of both T1D and T2D.
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Affiliation(s)
- Deepika Ramu
- Department of Human Genetics, Sri Ramachandra Institute of Higher Education and Research, Chennai, India
| | | | - Solomon F D Paul
- Department of Human Genetics, Sri Ramachandra Institute of Higher Education and Research, Chennai, India
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Shimura K, Miura J, Kawamoto M, Kawaguchi Y, Yamanaka H, Uchigata Y. Genetic differences between type 1 diabetes with and without other autoimmune diseases. Diabetes Metab Res Rev 2018; 34:e3023. [PMID: 29762907 DOI: 10.1002/dmrr.3023] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/19/2017] [Revised: 04/16/2018] [Accepted: 04/26/2018] [Indexed: 01/04/2023]
Abstract
BACKGROUND Clusters of autoimmune diseases (ADs) are present in some people with type 1 diabetes. This clustering suggests the existence of common genetic backgrounds for abnormal autoimmunity in these individuals. However, the genetic differences between type 1 diabetes patients with and without other ADs are not well known. METHODS To investigate the clinical background and genetic differences between type 1 diabetes patients with and without other ADs, single nucleotide polymorphisms (SNPs) in the CTLA4, SUMO4, PTPN22, IRF5, STAT4, and BLK genes were analysed by using either a TaqMan assay or direct sequencing. The frequencies of alleles, genotypes of each gene, and the human leukocyte antigen (HLA) haplotype were analysed to investigate differences among 3 groups: type 1 diabetes with systemic ADs (group A), type 1 diabetes with other organ-specific ADs (group B), and type 1 diabetes without other ADs (group C). RESULTS The frequency of the C allele in the -1123G > C SNP in the PTPN22 gene promoter was significantly higher in groups A and B than in group C (P = .0258 and .0207, respectively). The allele frequencies of the other SNPs were comparable. The frequency of HLA DRB1*0405-DQB1*0401 was significantly higher in groups A and B than in group C (P = .021 and .0395, respectively). CONCLUSIONS The -1123G > C SNP in the PTPN22 gene promoter and HLA DRB1*0405-DQB1*0401 might influence the concurrence of systemic and organ-specific ADs in patients with type 1 diabetes.
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Affiliation(s)
- Kanako Shimura
- Diabetes Center, Tokyo Women's Medical University Hospital, Tokyo, Japan
| | - Junnosuke Miura
- Diabetes Center, Tokyo Women's Medical University Hospital, Tokyo, Japan
| | - Manabu Kawamoto
- Institute of Rheumatology, Tokyo Women's Medical University Hospital, Tokyo, Japan
| | - Yasushi Kawaguchi
- Institute of Rheumatology, Tokyo Women's Medical University Hospital, Tokyo, Japan
| | - Hisashi Yamanaka
- Institute of Rheumatology, Tokyo Women's Medical University Hospital, Tokyo, Japan
| | - Yasuko Uchigata
- Diabetes Center, Tokyo Women's Medical University Hospital, Tokyo, Japan
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Heneberg P, Kocková L, Čecháková M, Daňková P, Černá M. Autoimmunity-Associated PTPN22 Polymorphisms in Latent Autoimmune Diabetes of the Adult Differ from Those of Type 1 Diabetes Patients. Int Arch Allergy Immunol 2018; 177:57-68. [DOI: 10.1159/000489225] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Accepted: 04/11/2018] [Indexed: 12/16/2022] Open
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Welter M, Volanski W, Alberton D, França SN, Picheth G, de Moraes Rego FG. Polymorphism rs2476601 in the PTPN22 gene is associated with type 1 diabetes in children from the South Region of Brazil. Gene 2018; 650:15-18. [DOI: 10.1016/j.gene.2018.01.073] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Revised: 12/20/2017] [Accepted: 01/22/2018] [Indexed: 01/21/2023]
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Hedjoudje A, Cheurfa C, Briquez C, Zhang A, Koch S, Vuitton L. rs2476601 polymorphism in PTPN22 is associated with Crohn's disease but not with ulcerative colitis: a meta-analysis of 16,838 cases and 13,356 controls. Ann Gastroenterol 2017; 30:197-208. [PMID: 28243041 PMCID: PMC5320033 DOI: 10.20524/aog.2017.0121] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Accepted: 12/07/2016] [Indexed: 02/07/2023] Open
Abstract
Background Although the rs2476601 polymorphism of PTPN22 has been reported to be a susceptibility gene for Crohn’s disease (CD), results from different studies vary and remain inconclusive. Also, no association has been found between rs2476601 and the risk of ulcerative colitis (UC). The aim of this meta-analysis was to investigate the association between this PTPN22 polymorphism (rs2476601) and the risk of inflammatory bowel disease, UC and CD. Methods We performed a meta-analysis by identifying relevant candidate gene-based studies from EMBASE and MEDLINE. Odds ratios (OR) and 95% confidence intervals (CI) were calculated to estimate the strength of associations between rs2476601 and inflammatory bowel diseases, using a fixed effect or random effect model. Publication bias was also assessed. Results By pooling 14 different studies, 13,356 controls, 8182 patients with CD, and 8656 with UC were included. We found that the T allele of PTPN22 was not significantly associated with a higher risk of developing UC (OR 1.06, 95%CI 0.98-1.14) but was associated with a decreased risk of developing CD (OR 1.28, 95%CI 1.17-1.40). The T allele in rs2476601 lowered the risk of CD by 22%. Conclusion This study shows that PTPN22 (rs2476601) is significantly associated with the risk of developing CD, but has no association with UC. This suggests that these diseases have different pathways involved in their pathophysiology.
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Affiliation(s)
- Abdellah Hedjoudje
- Gastro-entérologie, Centre Hospitalier Régional Universitaire de Besançon, Besançon (Abdellah Hedjoudje, Clément Briquez, Stéphane Koch, Lucine Vuitton); Faculté de Médecine, Université Paris Descartes, Paris (Chérifa Cheurfa)
| | - Chérifa Cheurfa
- Faculté de Médecine, Université Paris Descartes, Paris (Chérifa Cheurfa); Anésthésie réanimation, CHU Charles Nicolle, Rouen, France (Chérifa Cheurfa)
| | - Clément Briquez
- Gastro-entérologie, Centre Hospitalier Régional Universitaire de Besançon, Besançon (Abdellah Hedjoudje, Clément Briquez, Stéphane Koch, Lucine Vuitton)
| | - Allen Zhang
- Johns Hopkins University Evidence-based Practice Center, Johns Hopkins University, Baltimore, United States (Allen Zhang)
| | - Stéphane Koch
- Gastro-entérologie, Centre Hospitalier Régional Universitaire de Besançon, Besançon (Abdellah Hedjoudje, Clément Briquez, Stéphane Koch, Lucine Vuitton)
| | - Lucine Vuitton
- Gastro-entérologie, Centre Hospitalier Régional Universitaire de Besançon, Besançon (Abdellah Hedjoudje, Clément Briquez, Stéphane Koch, Lucine Vuitton)
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Li F, Li N, Zhu Q, Zhou Z, Zhang P, Yang C, Han Q, Lv Y, Wei P, Liu Z. Association of PTPN22 gene polymorphisms with chronic hepatitis B virus infection in Chinese Han population. Hum Immunol 2015; 76:736-41. [PMID: 26429315 DOI: 10.1016/j.humimm.2015.09.030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2014] [Revised: 06/23/2015] [Accepted: 09/27/2015] [Indexed: 01/12/2023]
Abstract
Lymphoid protein tyrosine phosphatase encoded by protein tyrosine phosphatase non-receptor 22 (PTPN22) gene plays an important regulatory role in T- and B-cell activation. This study investigated PTPN22 -1123G/C and intron 16 T/C polymorphisms in 372 patients with chronic hepatitis B virus (HBV) infection, 72 HBV infection resolvers and 273 healthy controls. Genotypic association tests between groups assuming codominant, dominant or log-additive genetic models were performed. In recessive model, PTPN22 -1123G/C genotype GG in healthy controls was more frequent than infection resolvers (P=0.037, OR=3.606, 95%CI=1.079-12.053) and this genotype in HBV patients was more frequent than resolvers although the difference was not significant (P=0.059). The PTPN22 intron 16 T/C genotype TC in cirrhosis patients was significantly higher than asymptomatic carriers (ASC) in codominant (P=0.028, OR=9.792, 95%CI=1.281-74.832) and overdominant (P=0.025, OR=10.142, 95%CI=1.332-77.214) models. This genotype in hepatocellular carcinoma (HCC) patients was significantly higher than ASC in codominant (P=0.034, OR=9.200, 95%CI=1.176-71.990) and overdominant (P=0.030, OR=9.677, 95%CI=1.241-75.442) models. These findings suggest that PTPN22 polymorphisms may predispose the chronicity or the development of cirrhosis and HCC in HBV infection.
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Affiliation(s)
- Fang Li
- Department of Infectious Diseases, First Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an 710061, Shaanxi, China
| | - Na Li
- Department of Infectious Diseases, First Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an 710061, Shaanxi, China
| | - Qianqian Zhu
- Department of Infectious Diseases, First Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an 710061, Shaanxi, China
| | - Zhihua Zhou
- Department of Infectious Diseases, First Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an 710061, Shaanxi, China
| | - Pingping Zhang
- Department of Infectious Diseases, First Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an 710061, Shaanxi, China
| | - Cuiling Yang
- Department of Infectious Diseases, First Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an 710061, Shaanxi, China
| | - Qunying Han
- Department of Infectious Diseases, First Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an 710061, Shaanxi, China
| | - Yi Lv
- Department of Hepatobiliary Surgery, First Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an 710061, Shaanxi, China; Institute of Advanced Surgical Technology and Engineering, Xi'an Jiaotong University, Xi'an 710061, Shaanxi, China
| | - Ping Wei
- Department of Infectious Diseases, First Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an 710061, Shaanxi, China
| | - Zhengwen Liu
- Department of Infectious Diseases, First Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an 710061, Shaanxi, China; Institute of Advanced Surgical Technology and Engineering, Xi'an Jiaotong University, Xi'an 710061, Shaanxi, China.
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Association between a gain-of-function variant of PTPN22 and rejection in liver transplantation. Transplantation 2015; 99:431-7. [PMID: 25073032 DOI: 10.1097/tp.0000000000000313] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
BACKGROUND The protein tyrosine phosphatase nonreceptor 22 gene (PTPN22) encodes a strong T-cell regulator called lymphoid protein tyrosine phosphatase. Previously, PTPN22 was described as a susceptibility gene for autoimmunity because it contains single nucleotide polymorphisms (SNPs) associated with several autoimmune diseases. One SNP (rs2476601; 1858G>A) has emerged as a particularly potent risk factor for autoimmunity. We address the question whether PTPN22 polymorphisms are also associated with acute rejection after liver transplantation. METHODS We investigated the influence of six PTPN22 SNPs on the susceptibility to acute liver allograft rejection. Consequently, we carried out a retrospective study genotyping 345 German liver recipients at six SNP loci, which include rs2488457 (-1123G>C), rs33996649 (788C>T), rs2476601 (1858G>A), rs1310182 (-852A>G), rs1217388 (-2200G>A), rs3789604 (64434T>G). Our study enrolled 165 recipients who did not develop rejection, 123 who showed one rejection episode, and 57 patients who suffered from multiple acute rejections after transplantation. RESULTS The 1858A allele containing genotypes (GA+AA) and the 1858A allele had a significantly higher frequency in the group of patients with multiple rejection episodes (35.1% and 18.4%) compared to rejection-free patients (15.8% and 7.9%; P=0.022 and 0.023). In contrast, we could not detect any association between rejection and the other tested SNPs. Additionally, we identified one haplotype contributing to risk of multiple rejections, however, exhibiting no stronger impact than the 1858A allele alone. CONCLUSION We conclude that the 1858G>A SNP may confer susceptibility to multiple acute liver transplant rejections in the German population.
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Machado-Contreras JR, Muñoz-Valle JF, Cruz A, Salazar-Camarena DC, Marín-Rosales M, Palafox-Sánchez CA. Distribution of PTPN22 polymorphisms in SLE from western Mexico: correlation with mRNA expression and disease activity. Clin Exp Med 2015; 16:399-406. [DOI: 10.1007/s10238-015-0359-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2015] [Accepted: 05/11/2015] [Indexed: 01/14/2023]
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14
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Heneberg P, Mal� M, Yorifuji T, Gat-Yablonski G, Lebenthal Y, Tajima T, Nogaroto V, Ryp�ckov� B, Kockov� L, Urbanov� J, Andel M. Low Frequencies of Autoimmunity-Associated PTPN22 Polymorphisms in MODY Patients, Including Those Transiently Expressing Islet Cell Autoantibodies. Int Arch Allergy Immunol 2015; 166:189-98. [DOI: 10.1159/000380853] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2014] [Accepted: 02/09/2015] [Indexed: 11/19/2022] Open
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15
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STAT4 rs7574865 G/T and PTPN22 rs2488457 G/C polymorphisms influence the risk of developing juvenile idiopathic arthritis in Han Chinese patients. PLoS One 2015; 10:e0117389. [PMID: 25781893 PMCID: PMC4363145 DOI: 10.1371/journal.pone.0117389] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2014] [Accepted: 12/21/2014] [Indexed: 12/31/2022] Open
Abstract
Juvenile idiopathic arthritis (JIA) is a common autoimmune disease characterized by environmental influences along with several predisposing genes in the pathogenesis. The protein tyrosine phosphatase nonreceptor 22 (PTPN22) and signal transducer and activator of transcription factor 4 (STAT4) have been recognized as susceptibility genes for numerous autoimmune diseases. Associations of STAT4 rs7574865 G/T and PTPN22 (rs2488457 G/C and rs2476601 C/T) polymorphisms with JIA have repeatedly been replicated in several Caucasian populations. The aim of this study was to investigate the influence of three polymorphisms mentioned above on the risk of developing JIA in Han Chinese patients. Genotyping was performed on a total of 137 Chinese patients with JIA (JIA group) and 150 sex and age frequency-matched healthy volunteers (Control group). The single-nucleotide polymorphisms (SNP) were determined by using direct sequencing of PCR-amplified products. There were significant differences of PTPN22 rs2488457 G/C and STAT4 rs7574865 G/T polymorphisms between both groups. However, no significant difference was observed in distribution frequencies of PTPN22 rs2476601 polymorphism. The association with the PTPN22 rs2488457 G/C polymorphism remained significant in the stratifications by age at onset, ANA status, splenomegaly, lymphadenectasis and involvement joints. As with the STAT4 rs7574865 G/T polymorphisms, the enthesitis-related arthritis and presence of hepatomegaly had strong effect on the association. Our data strengthen STAT4 rs7574865 G/T and PTPN22 rs2488457 G/C polymorphisms as susceptibility factors for JIA.
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16
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Ferjeni Z, Bouzid D, Fourati H, Stayoussef M, Abida O, Kammoun T, Hachicha M, Penha-Gonçalves C, Masmoudi H. Association of TCR/CD3, PTPN22, CD28 and ZAP70 gene polymorphisms with type 1 diabetes risk in Tunisian population: family based association study. Immunol Lett 2014; 163:1-7. [PMID: 25448703 DOI: 10.1016/j.imlet.2014.11.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2014] [Revised: 10/30/2014] [Accepted: 11/10/2014] [Indexed: 11/28/2022]
Abstract
Type 1 diabetes (T1D) is caused by an immune-mediated destruction of the insulin-producing β-cells. Several studies support the involvement of T cell activation molecules in the pathogenesis of T1D. In order to underline the role of the genes involved in this activation pathway, we investigated, using the Sequenom MassARRAY platform, 45 single-nucleotide polymorphisms (SNPs) belonging to TCR/CD3, CD28, ZAP70, and PTPN22 genes in 59 T1D Tunisian families. In the current study, we identified an association with rs706 (Z score=2.782; p=0.005) of TCRβ gene. We also demonstrated that rs10918706 in the intron of the CD3z gene was associated with increased risk of T1D (Z score 2.137; p=0.032). In the same region, rs2949655 (Z score=2.101; p=0.035) and rs1214611 (Z score=4.036; p=0.00005) showed a genotype association with the risk of T1D. When haplotypes were constructed, GAA haplotype displayed significant association with T1D (Z score=2.135; p=0.032), while GGA haplotype (Z score=-1.988; p=0.046) was negatively associated with the disease. We also identified an association with rs3181096 (Z score=2.177; p=0.029), rs17695937 (Z score =2.111; p=0.034) and rs2488457 (Z score=2.219; p=0.026), respectively of CD28, ZAP70 and PTPN22 genes. In addition, our results suggest a significant effect on T1D susceptibility for AC (Z score=2.30; p=0.02) and CTGGC (Z score=2.309, p=0.02) haplotypes of ZAP70 and PTPN22 genes, respectively. While, the GTCT (Z score=-2.114, p=0.034) and CTAGG (Z score=-2.121, p=0.033) haplotypes of CD28 and PTPN22 genes, may confer protection against T1D. These findings confirm the role of PTPN22 and CD28 involved in the T cell activation pathway in the development of T1D in Tunisian families. Interestingly, ZAP70 and TCRβ/CD3z seem to contribute to the susceptibility to the disease in our population. However, this finding has to be confirmed in further studies.
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Affiliation(s)
- Zouidi Ferjeni
- Immunology Department, Habib Bourguiba Hospital, University of Sfax, Sfax, Tunisia.
| | - D Bouzid
- Immunology Department, Habib Bourguiba Hospital, University of Sfax, Sfax, Tunisia
| | - H Fourati
- Immunology Department, Habib Bourguiba Hospital, University of Sfax, Sfax, Tunisia
| | - M Stayoussef
- Immunology Department, Habib Bourguiba Hospital, University of Sfax, Sfax, Tunisia
| | - O Abida
- Immunology Department, Habib Bourguiba Hospital, University of Sfax, Sfax, Tunisia
| | - T Kammoun
- Pediatric Department, Hedi Chaker Hospital, University of Sfax, Sfax, Tunisia
| | - M Hachicha
- Pediatric Department, Hedi Chaker Hospital, University of Sfax, Sfax, Tunisia
| | | | - H Masmoudi
- Immunology Department, Habib Bourguiba Hospital, University of Sfax, Sfax, Tunisia
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17
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Dong F, Yang G, Pan HW, Huang WH, Jing LP, Liang WK, Zhang N, Zhang BH, Wang M, Liu Y, Zhang LJ, Zhang SH, Li H, Chen C, Nie LH, Jing CX. The association of PTPN22 rs2476601 polymorphism and CTLA-4 rs231775 polymorphism with LADA risks: a systematic review and meta-analysis. Acta Diabetol 2014; 51:691-703. [PMID: 25005490 PMCID: PMC4176954 DOI: 10.1007/s00592-014-0613-z] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2014] [Accepted: 06/12/2014] [Indexed: 01/30/2023]
Abstract
Although the polymorphisms of PTPN22 and the variants of CTLA-4 have been reported to be the susceptibility genes, which increased risk of latent autoimmune diabetes in adults (LADA), the results remained inconclusive. The aim of this meta-analysis was to evaluate the association between the polymorphisms of two genes and LADA. We performed a systematic review by identifying relevant studies and applied meta-analysis to pool gene effects. Data from ten studies published between 2001 and 2013 were pooled for two polymorphisms: rs2476601 in the PTPN22 gene and rs231775 in the CTLA-4 gene. Data extraction and assessments for risk of bias were independently performed by two reviewers. Fixed-effect model and random-effect model were used to pool the odds ratios; meanwhile, heterogeneity test, publication bias and sensitive analysis were explored. The minor T allele at rs2476601 and the minor G at rs231775 carried estimated relative risks (odds ratio) of 1.52 (95 % CI 1.29-1.79) and 1.39 (95 % CI 1.11-1.74), respectively. These alleles contributed to an absolute lowering of the risk of all LADA by 4.88 and 14.93 % when individuals do not carry these alleles. The estimated lambdas were 0.49 and 0.63, suggesting a codominant model of effects was most likely for two genes. In summary, our systematic review has demonstrated that PTPN22 rs2476601 and CTLA-4 rs231775 are potential risk factors for LADA. An updated meta-analysis is required when more studies are published to increase the power of these polymorphisms and LADA.
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Affiliation(s)
- Fang Dong
- Department of Epidemiology, Medical School, Jinan University, Guangzhou, 510632 Guangdong China
| | - Guang Yang
- Department of Parasitology, Medical School, Jinan University, Guangzhou, 510632 Guangdong China
| | - Hong-Wei Pan
- Department of Ophthalmology, Medical School, Jinan University, Guangzhou, Guangdong China
| | - Wei-Huang Huang
- Department of Epidemiology, Medical School, Jinan University, Guangzhou, 510632 Guangdong China
| | - Li-Peng Jing
- Department of Epidemiology, Medical School, Jinan University, Guangzhou, 510632 Guangdong China
| | - Wen-Kai Liang
- Department of Epidemiology, Medical School, Jinan University, Guangzhou, 510632 Guangdong China
| | - Na Zhang
- Department of Epidemiology, Medical School, Jinan University, Guangzhou, 510632 Guangdong China
| | - Bao-Huan Zhang
- Department of Epidemiology, Medical School, Jinan University, Guangzhou, 510632 Guangdong China
| | - Man Wang
- Department of Epidemiology, Medical School, Jinan University, Guangzhou, 510632 Guangdong China
| | - Yang Liu
- Department of Epidemiology, Medical School, Jinan University, Guangzhou, 510632 Guangdong China
| | - Li-Ju Zhang
- Department of Epidemiology, Medical School, Jinan University, Guangzhou, 510632 Guangdong China
| | - Si-Heng Zhang
- Department of Epidemiology, Medical School, Jinan University, Guangzhou, 510632 Guangdong China
| | - He Li
- Department of Epidemiology, Medical School, Jinan University, Guangzhou, 510632 Guangdong China
| | - Chuan Chen
- Department of Epidemiology, Medical School, Jinan University, Guangzhou, 510632 Guangdong China
| | - Li-Hong Nie
- Department of Endocrine, The First Affiliated Hospital, Jinan University, Guangzhou, Guangdong China
| | - Chun-Xia Jing
- Department of Epidemiology, Medical School, Jinan University, Guangzhou, 510632 Guangdong China
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18
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Subauste A, Gianani R, Chang AM, Plunkett C, Pietropaolo SL, Zhang YJ, Barinas-Mitchell E, Kuller LH, Galecki A, Halter JB, Pietropaolo M. Islet autoimmunity identifies a unique pattern of impaired pancreatic beta-cell function, markedly reduced pancreatic beta cell mass and insulin resistance in clinically diagnosed type 2 diabetes. PLoS One 2014; 9:e106537. [PMID: 25226365 PMCID: PMC4165581 DOI: 10.1371/journal.pone.0106537] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2014] [Accepted: 07/31/2014] [Indexed: 01/11/2023] Open
Abstract
There is a paucity of literature describing metabolic and histological data in adult-onset autoimmune diabetes. This subgroup of diabetes mellitus affects at least 5% of clinically diagnosed type 2 diabetic patients (T2DM) and it is termed Latent Autoimmune Diabetes in Adults (LADA). We evaluated indexes of insulin secretion, metabolic assessment, and pancreatic pathology in clinically diagnosed T2DM patients with and without the presence of humoral islet autoimmunity (Ab). A total of 18 patients with at least 5-year duration of clinically diagnosed T2DM were evaluated in this study. In those subjects we assessed acute insulin responses to arginine, a glucose clamp study, whole-body fat mass and fat-free mass. We have also analyzed the pancreatic pathology of 15 T2DM and 43 control cadaveric donors, using pancreatic tissue obtained from all the T2DM organ donors available from the nPOD network through December 31, 2013. The presence of islet Ab correlated with severely impaired β-cell function as demonstrated by remarkably low acute insulin response to arginine (AIR) when compared to that of the Ab negative group. Glucose clamp studies indicated that both Ab positive and Ab negative patients exhibited peripheral insulin resistance in a similar fashion. Pathology data from T2DM donors with Ab or the autoimmune diabetes associated DR3/DR4 allelic class II combination showed reduction in beta cell mass as well as presence of autoimmune-associated pattern A pathology in subjects with either islet autoantibodies or the DR3/DR4 genotype. In conclusion, we provide compelling evidence indicating that islet Ab positive long-term T2DM patients exhibit profound impairment of insulin secretion as well as reduced beta cell mass seemingly determined by an immune-mediated injury of pancreatic β-cells. Deciphering the mechanisms underlying beta cell destruction in this subset of diabetic patients may lead to the development of novel immunologic therapies aimed at halting the disease progression in its early stage.
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Affiliation(s)
- Angela Subauste
- The Brehm Center for Diabetes Research, Division of Metabolism, Endocrinology & Diabetes, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan, United States of America
- Division of Endocrinology, Department of Medicine, University of Mississippi Medical Center, Jackson, Mississippi, United States of America
| | - Roberto Gianani
- Division of Diabetes, Endocrinology and Metabolism, Department of Medicine, Baylor College of Medicine, Houston, Texas, United States of America
- The Brehm Center for Diabetes Research, Division of Metabolism, Endocrinology & Diabetes, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan, United States of America
| | - Annette M. Chang
- The Brehm Center for Diabetes Research, Division of Metabolism, Endocrinology & Diabetes, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan, United States of America
| | - Cynthia Plunkett
- The Brehm Center for Diabetes Research, Division of Metabolism, Endocrinology & Diabetes, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan, United States of America
| | - Susan L. Pietropaolo
- Division of Diabetes, Endocrinology and Metabolism, Department of Medicine, Baylor College of Medicine, Houston, Texas, United States of America
- The Brehm Center for Diabetes Research, Division of Metabolism, Endocrinology & Diabetes, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan, United States of America
| | - Ying-Jian Zhang
- The Brehm Center for Diabetes Research, Division of Metabolism, Endocrinology & Diabetes, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan, United States of America
| | - Emma Barinas-Mitchell
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
| | - Lewis H. Kuller
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
| | - Andrzej Galecki
- Geriatrics Center and Institute of Gerontology, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan, United States of America
| | - Jeffrey B. Halter
- Geriatrics Center and Institute of Gerontology, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan, United States of America
| | - Massimo Pietropaolo
- Division of Diabetes, Endocrinology and Metabolism, Department of Medicine, Baylor College of Medicine, Houston, Texas, United States of America
- The Brehm Center for Diabetes Research, Division of Metabolism, Endocrinology & Diabetes, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan, United States of America
- * E-mail:
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19
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El-Kafoury AA, Haroun M, Embaby AM, Dawoods AS. The association of polymorphic sites in some genes with type 1 diabetes mellitus in a sample of Egyptian children. EGYPTIAN JOURNAL OF MEDICAL HUMAN GENETICS 2014. [DOI: 10.1016/j.ejmhg.2014.05.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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20
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Pei Z, Chen X, Sun C, Du H, Wei H, Song W, Yang Y, Zhang M, Lu W, Cheng R, Luo F. A novel single nucleotide polymorphism in the protein tyrosine phosphatase N22 gene (PTPN22) is associated with Type 1 diabetes in a Chinese population. Diabet Med 2014; 31:219-26. [PMID: 24117662 DOI: 10.1111/dme.12331] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2013] [Revised: 08/09/2013] [Accepted: 09/19/2013] [Indexed: 11/29/2022]
Abstract
AIMS To examine single nucleotide polymorphisms in the protein tyrosine phosphatase N22 gene (PTPN22) and to study their association with Type 1 diabetes in a Chinese cohort. METHODS Three hundred and sixty-four young patients with Type 1 diabetes and 719 healthy children were included in this case-controlled study. The genotypes of rs1217385, rs2488457 (-1123C>G), rs1217414, rs1217419, rs3765598 and rs2476601 (1858C>T) in the PTPN22 gene were determined using the SNaPshot method. Alleles, genotypes and haplotype frequencies were compared between patients with Type 1 diabetes and healthy control subjects. The association between single nucleotide polymorphisms and clinical traits/autoantibody status was also analysed. RESULTS The single nucleotide polymorphism, rs1217419, located in the second intron of the PTPN22 gene was associated with Type 1 diabetes (odds ratio 1.5, 95% CI 1.14-1.97, P = 0.003). An additional single nucleotide polymorphism, rs1217385, was also associated with Type 1 diabetes; however, the association was secondary to that of rs1217419. The previously reported single nucleotide polymorphism that is associated with Type 1 diabetes (-1123G>C) had only marginal association with Type 1 diabetes in our study. A marginal association was also identified between -1123G>C and glutamic acid decarboxylase autoantibody positivity in patients with Type 1 diabetes. There was no association between the single nucleotide polymorphism 1858C>T and Type 1 diabetes in our studied cohort. CONCLUSIONS Our study confirmed that PTPN22 is a gene that contributes to Type 1 diabetes susceptibility. The primary association occurs with single nucleotide polymorphism rs1217419 and there is clear heterogeneity of the association between PTPTN22 polymorphisms and Type 1 diabetes in a Chinese population compared with other populations.
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Affiliation(s)
- Z Pei
- Department of Pediatric Endocrinology and Inborn Metabolic Diseases, Children's Hospital of Fudan University, Shanghai, China
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21
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Bottini N, Peterson EJ. Tyrosine phosphatase PTPN22: multifunctional regulator of immune signaling, development, and disease. Annu Rev Immunol 2013; 32:83-119. [PMID: 24364806 DOI: 10.1146/annurev-immunol-032713-120249] [Citation(s) in RCA: 146] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Inheritance of a coding variant of the protein tyrosine phosphatase nonreceptor type 22 (PTPN22) gene is associated with increased susceptibility to autoimmunity and infection. Efforts to elucidate the mechanisms by which the PTPN22-C1858T variant modulates disease risk revealed that PTPN22 performs a signaling function in multiple biochemical pathways and cell types. Capable of both enzymatic activity and adaptor functions, PTPN22 modulates signaling through antigen and innate immune receptors. PTPN22 plays roles in lymphocyte development and activation, establishment of tolerance, and innate immune cell-mediated host defense and immunoregulation. The disease-associated PTPN22-R620W variant protein is likely involved in multiple stages of the pathogenesis of autoimmunity. Establishment of a tolerant B cell repertoire is disrupted by PTPN22-R620W action during immature B cell selection, and PTPN22-R620W alters mature T cell responsiveness. However, after autoimmune attack has initiated tissue injury, PTPN22-R620W may foster inflammation through modulating the balance of myeloid cell-produced cytokines.
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Affiliation(s)
- Nunzio Bottini
- Division of Cellular Biology, La Jolla Institute for Allergy and Immunology, La Jolla, California 92037;
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22
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Chen Z, Zhang H, Xia B, Wang P, Jiang T, Song M, Wu J. Association of PTPN22 gene (rs2488457) polymorphism with ulcerative colitis and high levels of PTPN22 mRNA in ulcerative colitis. Int J Colorectal Dis 2013; 28:1351-8. [PMID: 23456301 DOI: 10.1007/s00384-013-1671-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/17/2013] [Indexed: 02/04/2023]
Abstract
PURPOSE Our aims were to evaluate protein tyrosine phosphatase nonreceptor type 22 (PTPN22) gene polymorphisms in ulcerative colitis (UC) and explore PTPN22 mRNA levels in colonic biopsies of UC patients in central China. METHODS A total of 165 Chinese UC patients and 300 healthy controls were enrolled in this study. PTPN22 -1123G/C, +1858C/T, and +788G/A polymorphisms were genotyped by PCR-restriction fragment length polymorphism method. PTPN22 mRNA expressions in colonic biopsies and serum C-reactive protein (CRP) levels were determined by quantitative PCR and immunonephelometry, respectively. RESULTS The frequency of C carrier was higher in UC patients than in healthy controls (66.7 vs. 53.3%, P = 0.005, odds ratios = 1.75, 95% CI 1.18-2.60) and associated with extensive colitis (P = 0.029). PTPN22 mRNA levels were elevated in UC patients than in healthy controls (P < 0.001). Among UC patients, PTPN22 mRNA expression levels were higher in biopsies of inflamed colonic tissue compared with noninflamed tissue (P < 0.001) and were correlated with CRP levels (r = 0.578, P < 0.001). PTPN22 mRNA expression levels were elevated in extensive colitis compared to proctitis (P = 0.008) and to left-sided colitis (P = 0.029) and were higher in moderate and severe disease than in mild disease (P = 0.005). CONCLUSIONS Our study showed the potential association between PTPN22 -1123G/C polymorphism and UC in central China. PTPN22 mRNA levels were highly expressed in UC, especially in active disease, and were correlated with CRP levels, disease location, and disease severity in UC patients.
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Affiliation(s)
- Zhitao Chen
- Department of Gastroenterology and Central Laboratory, The Central Hospital of Wuhan, Sheng Li Street 26, Wuhan, 430014, Hubei Province, People's Republic of China
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23
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Xiang Y, Zhou Z, Deng C, Leslie RD. Latent autoimmune diabetes in adults in Asians: similarities and differences between East and West. J Diabetes 2013; 5:118-26. [PMID: 23448619 DOI: 10.1111/1753-0407.12029] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2012] [Accepted: 01/28/2013] [Indexed: 01/12/2023] Open
Abstract
Latent autoimmune diabetes in adults (LADA) is a form of autoimmune diabetes with features of both type 1 and type 2 diabetes and in the middle of the diabetes spectrum. Scientists clash on the question of whether this type of diabetes is a unique diabetes subtype. Multicenter studies have been performed in different countries, including the Korea National Diabetes Program (KNDP) collaboratory group, the Ehime study in Japan, the Not Insulin-Requiring Autoimmune Diabetes (NIRAD) study in Italy, the Nord-Trøndelag Health (HUNT) study in Norway, the UK Prospective Diabetes Study (UKPDS) in the UK, the Action LADA study in Europe and the LADA China study in China. These studies found universal immunogenetic effects associated with LADA, but with some ethnic differences. Herein we summarize those multicenter studies and compare the ethnic similarities and differences between East and West from epidemiological, clinical, immune, and genetic viewpoints.
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Affiliation(s)
- Yufei Xiang
- Diabetes Center, 2nd Xiangya Hospital and Institute of Metabolism and Endocrinology, Key Laboratory of Diabetes Immunology, Ministry of Education, Central South University, Changsha, Hunan, China
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Chen ZT, Wu J, Wang P, Zhang H, Xia B, Huang XD. Association between protein tyrosine phosphatase nonreceptor type 22 gene rs2488457 polymorphism and ulcerative colitis. Shijie Huaren Xiaohua Zazhi 2013; 21:1462-1467. [DOI: 10.11569/wcjd.v21.i15.1462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To evaluate the association between protein tyrosine phosphatase nonreceptor type 22 (PTPN22) gene polymorphisms (-1123G/C in the promoter and +788G/A in exon 10) and disease susceptibility and phenotypes of ulcerative colitis (UC), and to investigate PTPN22 mRNA expression in colonic biopsies of UC patients.
METHODS: A total of 165 UC patients and 300 healthy controls were enrolled in this study. PTPN22 gene -1123G/C and +788G/A polymorphisms were genotyped by polymerase chain reaction-based restriction fragment length polymorphism. PTPN22 mRNA expression in colonic biopsies of UC patients and controls was determined by quantitative RT-PCR.
RESULTS: The frequencies of "CC + CG" genotypes and C allele were higher in UC patients than in healthy controls (66.7% vs 53.3%, P = 0.005, OR = 1.75, 95%CI: 1.18-2.60; 41.5% vs 33.5%, P = 0.015, OR = 1.41, 95%CI: 1.07-1.86), and were associated with extensive colitis (P = 0.029). In UC patients, PTPN22 mRNA expression levels were elevated in active disease compared to inactive disease (P = 0.005). There was no association between PTPN22 mRNA expression levels and -1123G/C polymorphism in UC patients. PTPN22 gene +788G/A polymorphism did not show any association with UC.
CONCLUSION: Our study demonstrates a potential association between PTPN22 -1123G/C polymorphism and UC in central China. PTPN22 mRNA is highly expressed in active UC, suggesting that PTPN22 may play an important role in the pathogenesis of UC.
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Hashemi M, Atabaki M, Daneshvar H, Zakeri Z, Eskandari-Nasab E. Association of PTPN22 rs2476601 and EGFR rs17337023 Gene polymorphisms and rheumatoid arthritis in Zahedan, Southeast Iran. Int J Immunogenet 2013; 40:299-305. [PMID: 23350658 DOI: 10.1111/iji.12038] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2012] [Revised: 10/28/2012] [Accepted: 12/12/2012] [Indexed: 12/15/2022]
Abstract
In this study we aimed to evaluate the possible association of PTPN22 rs2476601 as well as epidermal growth factor receptor (EGFR) rs17337023 gene polymorphism and rheumatoid arthritis (RA) in a sample of Iranian population. This case-control study was performed on 120 patients with RA and 120 healthy subjects. Genomic DNA was extracted from whole blood and PTPN22 rs2476601 and EGFR rs17337023 polymorphisms were determined using tetra amplification refractory mutation system-polymerase chain reaction (T-ARMS-PCR). The results showed that PTPN22 rs2476601 CT genotype as well as rs2476601 T allele was a risk factor for susceptibility to RA (OR=5.89 95%CI = 1.78-19.48, P = 0.004 and OR = 4.78, 95%CI = 1.59-14.35, P = 0.003, respectively). We also found that EGFR rs17337023 AT and rs17337023 TT genotypes were risk factor for susceptibility to RA (OR = 9.94 95%CI = 3.65-26.73, P < 0.001 and OR = 3.66, 95%CI = 1.46-9.15, P = 0.005, respectively). In addition the EGFR rs17337023 T allele was a risk for predisposition to RA (OR = 1.56, 95%CI=1.06-2.30, P = 0.030). In conclusion, we found an association between PTPN22 rs2476601 and EGFR rs17337023 polymorphisms and the risk of RA in a sample of Iranian population.
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Affiliation(s)
- M Hashemi
- Cellular and Molecular Research Center, Zahedan University of Medical Sciences, Zahedan, Iran.
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26
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Gianchecchi E, Palombi M, Fierabracci A. The putative role of the C1858T polymorphism of protein tyrosine phosphatase PTPN22 gene in autoimmunity. Autoimmun Rev 2012; 12:717-25. [PMID: 23261816 DOI: 10.1016/j.autrev.2012.12.003] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2012] [Accepted: 12/05/2012] [Indexed: 12/11/2022]
Abstract
Autoimmune diseases represent a heterogeneous group of conditions whose incidence is increasing worldwide. This has stimulated studies on their etiopathogenesis, derived from a complex interaction between genetic and environmental factors, in order to improve prevention and treatment of these diseases. An increasing amount of epidemiologic investigations has associated the presence of the C1858T polymorphism in the protein tyrosine phosphatase non-receptor type 22 (PTPN22) gene to the onset of several autoimmune diseases including insulin-dependent diabetes mellitus (Type 1 diabetes). PTPN22 encodes for the lymphoid tyrosine phosphatase Lyp. This belongs to non-receptor-type protein tyrosine phosphatases involved in lymphocyte activation and differentiation. In humans, Lyp may have a role in the negative regulation of T cell receptor signaling. The single nucleotide polymorphism C1858T encodes for a more active phosphatase Lyp R620W. This has the ability to induce a higher negative regulation of T cell receptor signaling. Thus, C1858T could play an important role at the level of thymocyte polarization and escape of autoreactive T lymphocytes, through the positive selection of otherwise negatively selected autoimmune T cells. In this review we discuss the physiological role exerted by the PTPN22 gene and its encoded Lyp product in lymphocyte processes. We highlight the pathogenic significance of the C1858T PTPN22 polymorphism in human autoimmunity with special reference to Type 1 diabetes. Recently the genetic variation in PTPN22 was shown to induce altered function of T and B-lymphocytes. In particular BCR signaling defects and alterations in the B cell compartment were reported in T1D patients. We finally speculate on the possible development of novel therapeutic treatments in human autoimmunity aiming to selectively target the variant Lyp protein in autoreactive T and B lymphocytes.
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Affiliation(s)
- Elena Gianchecchi
- Autoimmunity Laboratory, Immunology Area, Bambino Gesù Children's Hospital IRCCS, Rome, Italy
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Espinoza JL, Takami A, Onizuka M, Morishima Y, Fukuda T, Kodera Y, Akiyama H, Miyamura K, Mori T, Nakao S. Recipient PTPN22 -1123 C/C genotype predicts acute graft-versus-host disease after HLA fully matched unrelated bone marrow transplantation for hematologic malignancies. Biol Blood Marrow Transplant 2012; 19:240-6. [PMID: 23025987 DOI: 10.1016/j.bbmt.2012.09.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2012] [Accepted: 09/20/2012] [Indexed: 01/13/2023]
Abstract
PTPN22 is a critical negative regulator of T cell responses. Its promoter gene variant (rs2488457, -1123G>C) has been reported to be associated with autoimmune diseases. This study analyzed the impact of the PTPN22 variant on transplantation outcomes in a cohort of 663 patients who underwent unrelated HLA-matched bone marrow transplantation (BMT) for hematologic malignancies through the Japan Marrow Donor Program. The recipient C/C genotype versus the recipient G/G genotype resulted in a lower incidence of grade II-IV acute graft-versus-host disease (hazard ratio [HR], 0.50; 95% confidence interval [CI], 0.29-0.85; P = .01), as well as a higher incidence of relapse (HR, 1.78; 95% CI, 1.10-2.90; P = .02), as demonstrated on multivariate analysis. In patients with high-risk disease, the recipient C/C genotype was associated with significantly worse overall survival rates than the recipient G/G genotype (HR, 1.60; 95% CI, 1.02-2.51; P = .04), whereas this effect was absent in patients with standard-risk disease. In addition, the donor G/C genotype was associated with a lower incidence of relapse (HR, 0.58; 95% CI, 0.40-0.85), which did not influence survival. Our findings suggest that PTPN22 genotyping could be useful in predicting prognoses and creating therapeutic strategies for improving the final outcomes of allogeneic BMT.
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Affiliation(s)
- J Luis Espinoza
- Department of Hematology and Oncology, Kanazawa University Hospital, Kanazawa, Japan
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