1
|
Ricci S, Perugia F, Piccini B, Lodi L, Pegoraro F, Giovannini M, Rombolà G, Perferi G, Toni S, Azzari C. DR4/DQ2 haplotype confers susceptibility to T1DM with early clinical disease onset: A retrospective analysis in a tertiary-care hospital in Italy. PLoS One 2022; 17:e0276896. [PMID: 36409706 PMCID: PMC9678300 DOI: 10.1371/journal.pone.0276896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Accepted: 10/15/2022] [Indexed: 11/22/2022] Open
Abstract
INTRODUCTION T1DM is the most frequent form of diabetes in children. It has a multifactorial pathogenesis in which genetic, environmental and immunological factors are involved. Among genetic explanations a major role is attributed to second class HLA genes, with the greatest risk associated with the simultaneous presence of the haplotypes DR3DQ2 and DR4DQ8. Based on results obtained in other countries, the aim of this research is to verify a possible association between the haplotype DRB1 * 04: 05-DQA1 * 03-DQB1 * 02 and the onset of T1DM among Italian children with possible genotype-phenotype correlations. Greater knowledge of genes which increase or decrease susceptibility is important for genome analysis. MATERIALS AND METHODS 165 patients with type 1 diabetes treated at the Diabetology Unit of the Meyer Children's University Hospital, were clinically analyzed. Data relating to age at diagnosis, pancreatic anti-beta cell autoimmunity, comorbidities with date of diagnosis and family history were retrospectively collected from medical data. A case-control study was conducted to investigate the HLA types of the patients compared to a control group of 819 Tuscan donors enrolled in the National Bone Marrow Donor Register. Typing was carried out using the Eurospital "DIABEGEN" kit, currently in use at the immunology laboratory of the Meyer Children's University Hospital. RESULTS Mean age at diagnosis was 9.3 years; most children (97%) had anti-pancreatic beta cell autoimmunity; the anti-insulin antibody (IAA) was more frequent among children with early clinical disease onset (0-5 years of age). From the case control comparison performed on HLA typing, it emerged that the greatest risk for the development of type 1 diabetes is conferred by the haplotypes DR3DQ2 and DR4DQ8, but in addition to these haplotypes, already known in other countries, we identified another haplotype, DR4DQ2 (DRB1 * 04: 05-DQA1 * 03-DQB1 * 02) which appears to predispose children to type 1 diabetes (p value 2.80E-08) and it is associated with early clinical disease onset (p-value = 0.002). CONCLUSIONS We report a new haplotype which increases susceptibility to type 1 diabetes among Italian children and which is associated with early clinical disease onset. Given the central role attributed to genetic factors in the pathogenesis of T1DM and to the II class HLA genes, this new haplotype ought to be recognized as a risk factor and included in tests routinely carried out to identify patients with a genetic predisposition to type I diabetes in Italy. These findings could have practical implications in research and prevention programs.
Collapse
Affiliation(s)
- Silvia Ricci
- Section of Pediatrics, Meyer Children’s Hospital, Florence, Italy
- Department of Health Sciences, University of Florence, Florence, Italy
- * E-mail:
| | - Francesca Perugia
- Department of Translational Research and the New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy
| | - Barbara Piccini
- Diabetology Unit, Meyer University Children’s Hospital, Florence, Italy
| | - Lorenzo Lodi
- Section of Pediatrics, Meyer Children’s Hospital, Florence, Italy
- Department of Health Sciences, University of Florence, Florence, Italy
| | | | - Mattia Giovannini
- Section of Pediatrics, Meyer Children’s Hospital, Florence, Italy
- Department of Health Sciences, University of Florence, Florence, Italy
| | - Giovanni Rombolà
- Genetics Diagnostics—Laboratory of Immunogenetics and Transplant Biology, Careggi Hospital, Florence, Italy
| | | | - Sonia Toni
- Diabetology Unit, Meyer University Children’s Hospital, Florence, Italy
| | - Chiara Azzari
- Section of Pediatrics, Meyer Children’s Hospital, Florence, Italy
- Department of Health Sciences, University of Florence, Florence, Italy
| |
Collapse
|
2
|
Tran PMH, Dong F, Kim E, Richardson KP, Tran LKH, Waugh K, Hopkins D, Cummings RD, Wang PG, Rewers MJ, She JX, Purohit S. Use of a glycomics array to establish the anti-carbohydrate antibody repertoire in type 1 diabetes. Nat Commun 2022; 13:6527. [PMID: 36316364 PMCID: PMC9622713 DOI: 10.1038/s41467-022-34341-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Accepted: 10/24/2022] [Indexed: 11/07/2022] Open
Abstract
Type 1 diabetes (T1D) is an autoimmune disease, characterized by the presence of autoantibodies to protein and non-protein antigens. Here we report the identification of specific anti-carbohydrate antibodies (ACAs) that are associated with pathogenesis and progression to T1D. We compare circulatory levels of ACAs against 202 glycans in a cross-sectional cohort of T1D patients (n = 278) and healthy controls (n = 298), as well as in a longitudinal cohort (n = 112). We identify 11 clusters of ACAs associated with glycan function class. Clusters enriched for aminoglycosides, blood group A and B antigens, glycolipids, ganglio-series, and O-linked glycans are associated with progression to T1D. ACAs against gentamicin and its related structures, G418 and sisomicin, are also associated with islet autoimmunity. ACAs improve discrimination of T1D status of individuals over a model with only clinical variables and are potential biomarkers for T1D.
Collapse
Affiliation(s)
- Paul M H Tran
- Center for Biotechnology and Genomic Medicine, Medical College of Georgia, Augusta University, 1120 15th Street, Augusta, GA, 30912, USA
- Department of Internal Medicine, Yale School of Medicine, New Haven, CT, CT06510, USA
| | - Fran Dong
- Barbara Davis Center for Diabetes, University of Colorado Denver, Mail Stop A-140, 1775 Aurora Court, Aurora, CO, 80045, USA
| | - Eileen Kim
- Center for Biotechnology and Genomic Medicine, Medical College of Georgia, Augusta University, 1120 15th Street, Augusta, GA, 30912, USA
| | - Katherine P Richardson
- Center for Biotechnology and Genomic Medicine, Medical College of Georgia, Augusta University, 1120 15th Street, Augusta, GA, 30912, USA
| | - Lynn K H Tran
- Center for Biotechnology and Genomic Medicine, Medical College of Georgia, Augusta University, 1120 15th Street, Augusta, GA, 30912, USA
| | - Kathleen Waugh
- Barbara Davis Center for Diabetes, University of Colorado Denver, Mail Stop A-140, 1775 Aurora Court, Aurora, CO, 80045, USA
| | - Diane Hopkins
- Center for Biotechnology and Genomic Medicine, Medical College of Georgia, Augusta University, 1120 15th Street, Augusta, GA, 30912, USA
| | - Richard D Cummings
- Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, 02115, USA
| | - Peng George Wang
- School of Medicine, Southern University of Science and Technology, Shenzhen, 518055, Guangdong, China
| | - Marian J Rewers
- Barbara Davis Center for Diabetes, University of Colorado Denver, Mail Stop A-140, 1775 Aurora Court, Aurora, CO, 80045, USA
| | - Jin-Xiong She
- Center for Biotechnology and Genomic Medicine, Medical College of Georgia, Augusta University, 1120 15th Street, Augusta, GA, 30912, USA
| | - Sharad Purohit
- Center for Biotechnology and Genomic Medicine, Medical College of Georgia, Augusta University, 1120 15th Street, Augusta, GA, 30912, USA.
- Department of Obstetrics and Gynecology, Medical College of Georgia, Augusta University, 1120 15th Street, Augusta, GA, 30912, USA.
- Department of Undergraduate Health Professionals, College of Allied Health Sciences Augusta University, 1120 15th Street, Augusta, GA, 30912, USA.
| |
Collapse
|
3
|
Al Yafei Z, Mack SJ, Alvares M, Ali BR, Afandi B, Beshyah SA, Sharma C, Osman W, Mirghani R, Nasr A, Al Remithi S, Al Jubeh J, Almawi WY, AlKaabi J, ElGhazali G. HLA-DRB1 and -DQB1 Alleles, Haplotypes and Genotypes in Emirati Patients with Type 1 Diabetes Underscores the Benefits of Evaluating Understudied Populations. Front Genet 2022; 13:841879. [PMID: 35419034 PMCID: PMC8997289 DOI: 10.3389/fgene.2022.841879] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 01/31/2022] [Indexed: 02/05/2023] Open
Abstract
Background: HLA class II (DR and DQ) alleles and antigens have historically shown strong genetic predisposition to type 1 diabetes (T1D). This study evaluated the association of DRB1 and DQB1 alleles, genotypes, and haplotypes with T1D in United Arab Emirates. Materials and Methods: Study subjects comprised 149 patients with T1D, and 147 normoglycemic control subjects. Cases and controls were Emiratis and were HLA-DRB1 and -DQB1 genotyped using sequence-based typing. Statistical analysis was performed using Bridging Immunogenomic Data-Analysis Workflow Gaps R package. Results: In total, 15 DRB1 and 9 DQB1 alleles were identified in the study subjects, of which the association of DRB1*03:01, DRB1*04:02, DRB1*11:01, DRB1*16:02, and DQB1*02:01, DQB1*03:02, DQB1*03:01, and DQB1*06:01 with altered risk of T1D persisted after correcting for multiple comparisons. Two-locus haplotype analysis identified DRB1*03:01∼DQB1*02:01 [0.44 vs. 0.18, OR (95% CI) = 3.44 (2.33-5.1), Pc = 3.48 × 10-10]; DRB1*04:02∼DQB1*03:02 [0.077 vs. 0.014, OR = 6.06 (2.03-24.37), Pc = 2.3 × 10-3] and DRB1*04:05∼DQB1*03:02 [0.060 vs. 0.010, OR = 6.24 (1.79-33.34), Pc = 0.011] as positively associated, and DRB1*16:02∼DQB1*05:02 [0.024 vs. 0.075, OR = 0.3 (0.11-0.74), Pc = 0.041] as negatively associated with T1D, after applying Bonferroni correction. Furthermore, the highest T1D risk was observed for DR3/DR4 [0.104 vs. 0.006, OR = 25.03 (8.23-97.2), Pc = 2.6 × 10-10], followed by DR3/DR3 [0.094 vs. 0.010, OR = 8.72 (3.17-25.32), Pc = 3.18 × 10-8] diplotypes. Conclusion: While DRB1 and DQB1 alleles and haplotypes associated with T1D in Emiratis showed similarities to Caucasian and non-Caucasian populations, several alleles and haplotypes associated with T1D in European, African, and Asian populations, were not observed. This underscores the contribution of ethnic diversity and possible diverse associations between DRB1 and DQB1 and T1D across different populations.
Collapse
Affiliation(s)
- Zain Al Yafei
- Sheikh Khalifa Medical City, Purehealth, Abu Dhabi, United Arab Emirates
| | - Steven J Mack
- Department of Pediatrics, University of California, San Francisco, San Francisco, CA, United States
| | - Marion Alvares
- Sheikh Khalifa Medical City, Purehealth, Abu Dhabi, United Arab Emirates
| | - Bassam R Ali
- Department of Genetics and Genomics, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Bachar Afandi
- Department of Internal Medicine, Tawam Hospital, Al Ain, United Arab Emirates
| | - Salem A Beshyah
- Department of Medicine, Dubai Medical College, Dubai, United Arab Emirates
| | - Charu Sharma
- Department of Internal Medicine, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Wael Osman
- College of Arts and Sciences, Khalifa University, Abu Dhabi, United Arab Emirates
| | - Rajaa Mirghani
- Higher College of Technology, Abu Dhabi, United Arab Emirates
| | - Amre Nasr
- Department of Basic Medical Sciences, College of Medicine, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
| | - Sareea Al Remithi
- Sheikh Khalifa Medical City, Purehealth, Abu Dhabi, United Arab Emirates
| | - Jamal Al Jubeh
- Sheikh Khalifa Medical City, Purehealth, Abu Dhabi, United Arab Emirates
| | - Wasim Y Almawi
- Department of Biomedical Sciences, Nazarbayev University School of Medicine, Astana, Kazakhstan
| | - Juma AlKaabi
- Department of Internal Medicine, Tawam Hospital, Al Ain, United Arab Emirates.,Department of Internal Medicine, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Gehad ElGhazali
- Sheikh Khalifa Medical City, Purehealth, Abu Dhabi, United Arab Emirates.,Department of Internal Medicine, United Arab Emirates University, Al Ain, United Arab Emirates
| |
Collapse
|
4
|
Khdair SI, Jarrar W, Jarrar YB, Bataineh S, Al-Khaldi O. Association of HLA-DRB1 and -DQ Alleles and Haplotypes with Type 1 Diabetes in Jordanians. Endocr Metab Immune Disord Drug Targets 2021; 20:895-902. [PMID: 31742498 DOI: 10.2174/1871530319666191119114031] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 11/04/2019] [Accepted: 11/04/2019] [Indexed: 01/01/2023]
Abstract
BACKGROUND The Human Leukocyte Antigen (HLA) class II genes, particularly the HLADR and -DQ loci, have been shown to play a crucial role in Type 1 Diabetes (T1D) development. OBJECTIVE This study is the first to examine the contribution of the HLA-DR/DQ alleles and haplotypes to T1D susceptibility in Jordanians. METHODS Polymerase chain reaction sequence-specific primers (PCR-SSP) were used to genotype 41 Jordanian healthy controls and 50 insulin-dependent diabetes mellitus (IDDM) patients. RESULTS The following alleles were found to be significant high risk alleles in T1D Jordanian patients: DRB1*04 (OR=3.95, p<0.001), DRB1*0301(OR=5.27, p<0.001), DQA1*0301 (OR=5.67, p<0.001), DQA1*0501(OR=3.18, p=0.002), DQB1*0201(OR=2.18, p=0.03), DQB1*0302 (OR=5.67, p<0.001). However, Jordanians harboring the DRB1*0701 (OR=0.37, p=0.01), DRB1*1101 (OR=0.2, p=0.01), DQA1*0505 (OR=0.31, p=0.02), DQA1*0103 (OR=0.33, p=0.04), DQA1*0201 (OR=0.45, p=0.04), DQB1*0301 (OR=0.23, p=0.001), DQB1*0501 (OR=0.18, p=0.009) alleles had a significantly lower risk of developing T1D. CONCLUSION A strong positive association of DRB1*04-DQA1*0301-DQBl*0302 (OR=5.67, p<0.001) and DRB1*0301-DQA1*0501-DQB1*0201 (OR=6.24, p<0.001) putative haplotypes with IDDM was evident in Jordanian IDDM patients whereas DRB1*1101-DQA1*0505- DQB1*0301 (OR=0.23, p=0.03) was shown to have a protective role against T1D in Jordanians. Our findings show that specific HLA class II alleles and haplotypes are significantly associated with susceptibility to T1D in Jordanians.
Collapse
Affiliation(s)
- Sawsan I Khdair
- Department of Pharmacy, Faculty of Pharmacy, Al-Zaytoonah University of Jordan, Amman 11733, Jordan
| | - Wassan Jarrar
- Department of Pharmacy, Faculty of Pharmacy, Al-Zaytoonah University of Jordan, Amman 11733, Jordan
| | - Yazun Bashir Jarrar
- Department of Pharmacy, Faculty of Pharmacy, Al-Zaytoonah University of Jordan, Amman 11733, Jordan
| | - Safa'a Bataineh
- Diabetes Center, King Abdullah University Hospital, P.O.Box 630001, Irbid 21110, Jordan
| | - Omar Al-Khaldi
- Diabetes Center, King Abdullah University Hospital, P.O.Box 630001, Irbid 21110, Jordan
| |
Collapse
|
5
|
AlMutair A, AlSabty N, AlNuaim H, Al Hamdan R, Moukaddem A. Prevalence and special clinical and biochemical characteristics of familial type 1 (insulin dependent) diabetes mellitus in pediatric patients in a tertiary care setting. Int J Pediatr Adolesc Med 2020; 8:107-111. [PMID: 34084882 PMCID: PMC8144856 DOI: 10.1016/j.ijpam.2020.11.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 10/27/2020] [Accepted: 11/18/2020] [Indexed: 11/25/2022]
Abstract
Background and Objectives The hereditable nature of type 1 diabetes mellitus (T1DM) makes it a condition that is in some cases shared among siblings. Studies that focus on the epidemiology of T1DM among siblings are scarce. The primary focus of the study is to estimate the prevalence of familial T1DM among siblings and the secondary focus is to identify the presence of any special clinical or biochemical characteristics specific to this entity. Methods In a retrospective cross-sectional study, the charts of 308 children (>1 year) diagnosed with type 1 diabetes mellitus in a Saudi tertiary care setting were reviewed. The patients who have one sibling or more with T1DM were included. The prevalence of familial T1DM among siblings was calculated, and specific clinical and biochemical characteristics were investigated. Data were analyzed using Statistical Package for the Social Sciences software version 22 (IBM SPSS Statistics for Windows). The control group includes all patients with type I DM who were excluded for sibling with DM. Results The prevalence of familial T1DM among siblings was estimated at 15.9%. Seventy-four percent of the patients with a positive family history of diabetes mellitus had one affected sibling only. The clinical presentation showed no significant differences relative to the age of presentation, gender, parental consanguinity, diabetic ketoacidosis at presentation, and its number of episodes. For the biochemical characteristics, autoantibody tests revealed no statistically significant difference, but the mean initial HbA1c levels were lower in patients who had diabetic siblings. Conclusion The prevalence of familial T1DM was found to be higher than that reported in other studies. No specific clinical or biochemical features were found to characterize familial T1DM among siblings.
Collapse
Affiliation(s)
- Angham AlMutair
- Pediatric Endocrine Division, Department of Pediatrics, King Abdullah Specialist Children Hospital, King Abdulaziz Medical City, Ministry of National Guard Health Affairs (MNGHA), Riyadh, Saudi Arabia.,College of Medicine, King Saud Bin Abdulaziz University for Health Sciences, King Abdulaziz Medical City, Ministry of National Guard Health Affairs (MNGHA), Riyadh, Saudi Arabia.,King Abdullah International Medical Research Center, Ministry of National Guard Health Affairs Riyadh, Saudi Arabia
| | - Norah AlSabty
- College of Medicine, King Saud Bin Abdulaziz University for Health Sciences, King Abdulaziz Medical City, Ministry of National Guard Health Affairs (MNGHA), Riyadh, Saudi Arabia
| | - Hala AlNuaim
- College of Medicine, King Saud Bin Abdulaziz University for Health Sciences, King Abdulaziz Medical City, Ministry of National Guard Health Affairs (MNGHA), Riyadh, Saudi Arabia
| | - Rawan Al Hamdan
- College of Medicine, King Saud Bin Abdulaziz University for Health Sciences, King Abdulaziz Medical City, Ministry of National Guard Health Affairs (MNGHA), Riyadh, Saudi Arabia
| | - Afaf Moukaddem
- College of Medicine, King Saud Bin Abdulaziz University for Health Sciences, King Abdulaziz Medical City, Ministry of National Guard Health Affairs (MNGHA), Riyadh, Saudi Arabia
| |
Collapse
|
6
|
Eltayeb-Elsheikh N, Khalil E, Mubasher M, AlJurayyan A, AlHarthi H, Omer WH, Elghazali I, Sherbeeni SM, Alghofely MA, Ilonen J, Elghazali G. Association of HLA-DR-DQ alleles, haplotypes, and diplotypes with type 1 diabetes in Saudis. Diabetes Metab Res Rev 2020; 36:e3345. [PMID: 32418312 DOI: 10.1002/dmrr.3345] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 03/14/2020] [Accepted: 04/22/2020] [Indexed: 12/31/2022]
Abstract
AIMS Type 1 diabetes (T1D) is an autoimmune disease that affects many children worldwide. Genetic factors and environmental triggers play crucial interacting roles in the aetiology. This study aimed to assess the contribution of HLA-DRB1-DQA1-DQB1 alleles, haplotypes, and genotypes to the risk of T1D among Saudis. METHODS A total of 222 children with T1D and 342 controls were genotyped for HLA-DRB1, -DQA1, and -DQB1 using reverse sequence-specific oligonucleotide (rSSO) Lab Type high definition (HD) kits. Alleles, haplotypes, and diplotypes were compared between cases and controls using the SAS statistical package. RESULTS DRB1*03:01-DQA1*05:01-DQB1*02:01 (32.4%; OR = 3.68; Pc < .0001), DRB1*04:05-DQA1*03:02-DQB1*03:02 (6.6%; OR = 6.76; Pc < .0001), DRB1*04:02-DQA1*03:01-DQB1*03:02 (6.0%; OR = 3.10; Pc = .0194), DRB1*04:01-DQA1*03:01-DQB1*03:02 (3.7%; OR = 4.22; Pc = .0335), and DRB1*04:05-DQA1*03:02-DQB1*02:02 (2.7%; OR = 6.31; Pc = .0326) haplotypes were significantly increased in cases compared to controls, whereas DRB1*07:01-DQA1*02:01-DQB1*02:02 (OR = 0.41; Pc = .0001), DRB1*13:01-DQA1*01:03-DQB1*06:03 (OR = 0.05; Pc < .0001), DRB1*15:01-DQA1*01:02-DQB1*06:02 (OR = 0.03; Pc < .0001), and DRB1*11:01-DQA1*05:05-DQB1*03:01 (OR = 0.07; Pc = .0291) were significantly decreased. Homozygous DRB1*03:01-DQA1*05:01-DQB1*02:01 genotypes and combinations of DRB1*03:01-DQA1*05:01-DQB1*02:01 with DRB1*04:05-DQA1*03:02-DQB1*03:02, DRB1*04:02-DQA1*03:01-DQB1*03:02, and DRB1*04:01-DQA1*03:01-DQB1*03:02 were significantly increased in cases than controls. Combinations of DRB1*03:01-DQA1*05:01-DQB1*02:01 with DRB1*07:01-DQA1*02:01-DQB1*02:02 and DRB1*13:02-DQA1*01:02-DQB1*06:04 showed low OR values but did not remain significantly decreased after Bonferroni correction. CONCLUSIONS HLA-DRB1-DQA1-DQB1 alleles, haplotypes, and diplotypes in Saudis with T1D are not markedly different from those observed in Western and Middle-Eastern populations but are quite different than those of East Asians.
Collapse
Affiliation(s)
- Nezar Eltayeb-Elsheikh
- Department of Pathology and Clinical Laboratory Medicine, King Fahad Medical City, Riyadh, Kingdom of Saudi Arabia
| | - Eltahir Khalil
- Institute of Endemic Diseases, University of Khartoum, Khartoum, Sudan
| | - Mohamed Mubasher
- Biostatistics & Data Management Core, Morehouse School of Medicine, Atlanta, Georgia, USA
| | - Abdullah AlJurayyan
- Department of Pathology and Clinical Laboratory Medicine, King Fahad Medical City, Riyadh, Kingdom of Saudi Arabia
| | - Hanan AlHarthi
- Department of Pathology and Clinical Laboratory Medicine, King Fahad Medical City, Riyadh, Kingdom of Saudi Arabia
| | - Waleed H Omer
- Division of Human Genetics, National Institute of Genetics, Mishima, Shizuoka, Japan
| | - Inas Elghazali
- Department of Public Health and Clinical Medicine, Umeå University, Umeå, Sweden
| | - Suphia M Sherbeeni
- Endocrinology Department, King Fahad Medical City, Riyadh, Kingdom of Saudi Arabia
| | - Mohammed A Alghofely
- Endocrinology Department, King Fahad Medical City, Riyadh, Kingdom of Saudi Arabia
| | - Jorma Ilonen
- Immunogenetics Laboratory, Institute of Biomedicine, University of Turku and Clinical Microbiology Laboratory, Turku University Hospital, Turku, Finland
| | - Gehad Elghazali
- Department of Immunology, Sheikh Khalifa Medical City, Abu Dhabi, United Arab Emirates
| |
Collapse
|
7
|
Sharma C, R Ali B, Osman W, Afandi B, Aburawi EH, Beshyah SA, Al-Mahayri Z, Al-Rifai RH, Al Yafei Z, ElGhazali G, Alkaabi J. Association of variants in PTPN22, CTLA-4, IL2-RA, and INS genes with type 1 diabetes in Emiratis. Ann Hum Genet 2020; 85:48-57. [PMID: 32970831 DOI: 10.1111/ahg.12406] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Revised: 08/07/2020] [Accepted: 09/04/2020] [Indexed: 02/05/2023]
Abstract
Type 1 diabetes (T1D) is a chronic autoimmune disease with a complex interrelation of genetic and environmental factors. Genetic studies have reported HLA and non-HLA loci as significant contributors to T1D. However, the genetic basis of T1D among Emiratis is unexplored. This study aims to determine the contribution of four genes PTPN22, CTLA-4, IL2-RA, and INS to T1D risk among Emiratis. The association between variants in PTPN22 (rs2476601, rs1310182), CTLA-4 (rs11571316, rs231775, rs3087243, rs1427676, and rs231727), IL2-RA (rs7090530), and INS (rs7111341) with T1D was tested in 310 Emiratis (139 T1D patients and 171 controls). A significant association was found at rs1310182, and rs2476601 both in PTPN22, rs3087243, and rs231775 both in CTLA-4, and rs12251307 in IL2-RA. Moreover, a haplotype constituted from GG and AG genotypes at rs231727 and rs231775, respectively, in CTLA-4 was significantly associated with an increased T1D risk. The cumulative effects of risk alleles for all significantly associated SNPs showed 11.8 higher relative risk for T1D for those who carry 5-6 compared to 0-1 risk alleles. This study illustrated that PTPN22, CTLA-4, and IL2-RA gene variants could confer risk alleles for T1D among the Emirati population.
Collapse
Affiliation(s)
- Charu Sharma
- Department of Internal Medicine, College of Medicine and Health Sciences, United Arab Emirates University, UAE
| | - Bassam R Ali
- Department of Genetics and Genomics, College of Medicine and Health Sciences, United Arab Emirates University, UAE.,Department of Pathology, College of Medicine and Health Sciences, United Arab Emirates University, UAE
| | - Wael Osman
- College of Arts and Sciences, Khalifa University, Abu Dhabi, UAE
| | | | - Elhadi H Aburawi
- Department of Pediatrics, College of Medicine and Health Sciences, United Arab Emirates University, UAE
| | | | - Zeina Al-Mahayri
- Department of Pathology, College of Medicine and Health Sciences, United Arab Emirates University, UAE
| | - Rami H Al-Rifai
- Institute of Public Health, College of Medicine and Health Sciences, United Arab Emirates University, UAE
| | - Zain Al Yafei
- Department of Immunology, PLMS, Sheikh Khalifa Medical City, Abu Dhabi, UAE
| | - Gehad ElGhazali
- Department of Immunology, PLMS, Sheikh Khalifa Medical City, Abu Dhabi, UAE
| | - Juma Alkaabi
- Department of Internal Medicine, College of Medicine and Health Sciences, United Arab Emirates University, UAE
| |
Collapse
|
8
|
Kustrimovic N, Marino F, Cosentino M. Peripheral Immunity, Immunoaging and Neuroinflammation in Parkinson's Disease. Curr Med Chem 2019; 26:3719-3753. [PMID: 30306855 DOI: 10.2174/0929867325666181009161048] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Revised: 06/26/2018] [Accepted: 09/12/2018] [Indexed: 12/20/2022]
Abstract
Parkinson's disease (PD) is the second most common neurodegenerative disorder among elderly population, characterized by the progressive degeneration of dopaminergic neurons in the midbrain. To date, exact cause remains unknown and the mechanism of neurons death uncertain. It is typically considered as a disease of central nervous system (CNS). Nevertheless, numerous evidence has been accumulated in several past years testifying undoubtedly about the principal role of neuroinflammation in progression of PD. Neuroinflammation is mainly associated with presence of activated microglia in brain and elevated levels of cytokine levels in CNS. Nevertheless, active participation of immune system as well has been noted, such as, elevated levels of cytokine levels in blood, the presence of auto antibodies, and the infiltration of T cell in CNS. Moreover, infiltration and reactivation of those T cells could exacerbate neuroinflammation to greater neurotoxic levels. Hence, peripheral inflammation is able to prime microglia into pro-inflammatory phenotype, which can trigger stronger response in CNS further perpetuating the on-going neurodegenerative process. In the present review, the interplay between neuroinflammation and the peripheral immune response in the pathobiology of PD will be discussed. First of all, an overview of regulation of microglial activation and neuroinflammation is summarized and discussed. Afterwards, we try to collectively analyze changes that occurs in peripheral immune system of PD patients, suggesting that these peripheral immune challenges can exacerbate the process of neuroinflammation and hence the symptoms of the disease. In the end, we summarize some of proposed immunotherapies for treatment of PD.
Collapse
Affiliation(s)
- Natasa Kustrimovic
- Center of Research in Medical Pharmacology, University of Insubria, Varese, Italy
| | - Franca Marino
- Center of Research in Medical Pharmacology, University of Insubria, Varese, Italy
| | - Marco Cosentino
- Center of Research in Medical Pharmacology, University of Insubria, Varese, Italy
| |
Collapse
|
9
|
Xu Y, Mo N, Jiang Z, Lu S, Fu S, Wei X, Zhao D, Xie Z, Jia W, Liu J, Wang X, Shi D, Jiao Y, Liu C, Yang X. Human leukocyte antigen (HLA)-DRB1 allele polymorphisms and systemic sclerosis. Mod Rheumatol 2019; 29:984-991. [PMID: 30175673 DOI: 10.1080/14397595.2018.1519148] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Objectives: Human leukocyteantigen (HLA) is the most important gene for immune system regulation. Although studies have evaluated the association between HLA-DRB1 allele polymorphisms and systemic sclerosis (SSc), their results are still controversial. We performed a meta-analysis to assess the association of HLA-DRB1 alleles with risk of SSc.Methods: Electronic database were systematically searched for articles, a total of 11 case-control studies including 3268 cases and 5548 controls were analyzed. Odds ratio (ORs) and 95% confidence intervals were used to assess the association of HLA-DRB1 alleles with SSc. The relationship between SSc-related autoantibodies and DRB1 alleles was also analyzed.Results: In the overall analysis, four alleles (DRB1*04:03, DRB1*08, DRB1*11, and DRB1*11:04) increased the risk of SSc; however, five alleles (DRB1*07, DRB1*11:01, DRB1*13, DRB1*13:01, and DRB1*14) had the opposite effect. Analysis of subgroups by ethnicity indicate that DRB1*11:01 and DRB1*13:01 confer a protective effect in Caucasians, while DRB1*11:04 was associated with a higher risk of SSc. For Asian, DRB1*13:02 was found to be a protective factor. In addition, the frequency of DRB1*11:04 alleles was significantly increased in ATA+ SSc patients compared with ATA- SSc patients.Conclusion: DRB1*04:03, DRB1*08, DRB1*11, and DRB1*11:04 were associated with the risk of SSc. Additionally, DRB1*11 and DRB1*11:04 were association with ATAs.
Collapse
Affiliation(s)
- Yanzhen Xu
- Department of Pathophysiology, Guangxi Medical University, Nanning, Guangxi, China.,Medical Scientific Research Center, Guangxi Medical University, Nanning, Guangxi, China
| | - Nanfang Mo
- Medical Scientific Research Center, Guangxi Medical University, Nanning, Guangxi, China
| | - Zhiwen Jiang
- Medical Scientific Research Center, Guangxi Medical University, Nanning, Guangxi, China
| | - Shaoming Lu
- Center for Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China
| | - Shien Fu
- Medical Scientific Research Center, Guangxi Medical University, Nanning, Guangxi, China
| | - Xinyan Wei
- Medical Scientific Research Center, Guangxi Medical University, Nanning, Guangxi, China
| | - Dong Zhao
- Medical Scientific Research Center, Guangxi Medical University, Nanning, Guangxi, China
| | - Zhibin Xie
- Medical Scientific Research Center, Guangxi Medical University, Nanning, Guangxi, China.,Center for Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China.,Department of Urology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Wenxian Jia
- Medical Scientific Research Center, Guangxi Medical University, Nanning, Guangxi, China.,College of Pharmacy, Guangxi Medical University, Nanning, Guangxi, China
| | - Jiayi Liu
- Medical Scientific Research Center, Guangxi Medical University, Nanning, Guangxi, China
| | - Xiao Wang
- Medical Scientific Research Center, Guangxi Medical University, Nanning, Guangxi, China
| | - Dongchen Shi
- School of environmental science and engineering, Sun Yat-sen University, Guangzhou, China
| | - Yang Jiao
- Department of Urology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Chengwu Liu
- Department of Pathophysiology, Guangxi Medical University, Nanning, Guangxi, China
| | - Xiaoli Yang
- Medical Scientific Research Center, Guangxi Medical University, Nanning, Guangxi, China
| |
Collapse
|
10
|
Rasoul MA, Haider MZ, Al-Mahdi M, Al-Kandari H, Dhaunsi GS. Relationship of four vitamin D receptor gene polymorphisms with type 1 diabetes mellitus susceptibility in Kuwaiti children. BMC Pediatr 2019; 19:71. [PMID: 30845908 PMCID: PMC6404350 DOI: 10.1186/s12887-019-1448-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Accepted: 03/01/2019] [Indexed: 12/17/2022] Open
Abstract
Background The incidence of type 1 diabetes mellitus (T1DM) in Kuwait is amongst the highest in the world. Vitamin D is considered to be involved in immune modulation and its deficiency contribute to autoimmune destruction of insulin producing beta cells in T1DM patients. Vitamin D has been shown to exert its effects via a nuclear vitamin D receptor (VDR) and therefore, VDR gene may be considered a candidate for T1DM susceptibility. Methods The genotypes of four VDR gene polymorphisms were determined in 253 Kuwaiti Arab T1DM patients and 214 healthy controls by PCR-RFLP analysis. Serum concentrations of three autoantibodies i.e. ICA (Islet cell autoantibody), GADA (Glutamic acid decarboxylase) and INS (Insulin autoantibody) were determined by radio-immunoassays. Results Statistically significant differences were detected between the genotypes of two VDR gene polymorphisms (FokI, C > T, rs10735810 and TaqI, C > T, rs731236) between T1DM patients and controls (P < 0.0001). In both, the frequency of variant alleles was considerably high in T1DM than in the controls. In contrast, the VDR gene ApaI (G > T, rs7975232) and BsmI (A > G, rs1544410) polymorphisms did not show association with T1DM. The homozygous variant genotypes of FokI, ApaI and TaqI polymorphisms show significant differences between various age-of-onset subgroups while no such association was detected in the case of BsmI polymorphism. Significant differences were also noted between heterozygous genotypes of all four polymorphisms especially between 4-6y and > 6y age-of-onset subgroups of T1DM patients. Three autoantibodies, ICA (Islet cell), GADA (glutamate decarboxylase) and INS (insulin) were positively associated to, varying degrees, with T1DM in Kuwaiti Arabs harboring different VDR gene polymorphism genotypes. Conclusions Our results demonstrate a significant effect of two VDR gene polymorphisms (FokI and TaqI) and three autoantibodies on genetic susceptibility of T1DM in Kuwaiti Arabs along with other factors.
Collapse
Affiliation(s)
- Majedah A Rasoul
- Department of Pediatrics, Faculty of Medicine, Kuwait University, P.O. Box 24923, Safat-13110, Jabriya, Kuwait.,Department of Pediatrics, Adan Hospital, Al-Adan, Kuwait
| | - Mohammad Z Haider
- Department of Pediatrics, Faculty of Medicine, Kuwait University, P.O. Box 24923, Safat-13110, Jabriya, Kuwait.
| | - Maria Al-Mahdi
- Department of Pediatrics, Adan Hospital, Al-Adan, Kuwait
| | - Hessa Al-Kandari
- Department of Pediatrics, Farwania Hospital, Farwania, Kuwait.,Family Medicine and Pediatric Unit, Dasman Diabetes Institute, Dasman, Kuwait
| | - Gursev S Dhaunsi
- Department of Pediatrics, Faculty of Medicine, Kuwait University, P.O. Box 24923, Safat-13110, Jabriya, Kuwait.,Medical Laboratories, Mubarak Al-Kabeer Hospital, Jabriya, Kuwait
| |
Collapse
|
11
|
Campos-Acuña J, Elgueta D, Pacheco R. T-Cell-Driven Inflammation as a Mediator of the Gut-Brain Axis Involved in Parkinson's Disease. Front Immunol 2019; 10:239. [PMID: 30828335 PMCID: PMC6384270 DOI: 10.3389/fimmu.2019.00239] [Citation(s) in RCA: 80] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Accepted: 01/28/2019] [Indexed: 12/14/2022] Open
Abstract
Parkinson's disease (PD) is a neurodegenerative disorder affecting mainly the dopaminergic neurons of the nigrostriatal pathway, a neuronal circuit involved in the control of movements, thereby the main manifestations correspond to motor impairments. The major molecular hallmark of this disease corresponds to the presence of pathological protein inclusions called Lewy bodies in the midbrain of patients, which have been extensively associated with neurotoxic effects. Importantly, different research groups have demonstrated that CD4+ T-cells infiltrate into the substantia nigra of PD patients and animal models. Moreover, several studies have consistently demonstrated that T-cell deficiency results in a strong attenuation of dopaminergic neurodegeneration in animal models of PD, thus indicating a key role of adaptive immunity in the neurodegenerative process. Recent evidence has shown that CD4+ T-cell response involved in PD patients is directed to oxidised forms of α-synuclein, one of the main constituents of Lewy bodies. On the other hand, most PD patients present a number of non-motor manifestations. Among non-motor manifestations, gastrointestinal dysfunctions result especially important as potential early biomarkers of PD, since they are ubiquitously found among confirmed patients and occur much earlier than motor symptoms. These gastrointestinal dysfunctions include constipation and inflammation of the gut mucosa and the most distinctive pathologic features associated are the loss of neurons of the enteric nervous system and the generation of Lewy bodies in the gut. Moreover, emerging evidence has recently shown a pivotal role of gut microbiota in triggering the development of PD in genetically predisposed individuals. Of note, PD has been positively correlated with inflammatory bowel diseases, a group of disorders involving a T-cell driven inflammation of gut mucosa, which is strongly dependent in the composition of gut microbiota. Here we raised the hypothesis that T-cell driven inflammation, which mediates dopaminergic neurodegeneration in PD, is triggered in the gut mucosa. Accordingly, we discuss how structural components of commensal bacteria or how different mediators produced by gut-microbiota, including short-chain fatty acids and dopamine, may affect the behaviour of T-cells, triggering the development of T-cell responses against Lewy bodies, initially confined to the gut mucosa but later extended to the brain.
Collapse
Affiliation(s)
- Javier Campos-Acuña
- Laboratorio de Neuroinmunología, Fundación Ciencia and Vida, Ñuñoa, Santiago, Chile
| | - Daniela Elgueta
- Laboratorio de Neuroinmunología, Fundación Ciencia and Vida, Ñuñoa, Santiago, Chile
| | - Rodrigo Pacheco
- Laboratorio de Neuroinmunología, Fundación Ciencia and Vida, Ñuñoa, Santiago, Chile.,Departamento de Ciencias Biológicas, Facultad de Ciencias de la Vida, Universidad Andres Bello, Santiago, Chile
| |
Collapse
|
12
|
Mishra R, Hodge KM, Cousminer DL, Leslie RD, Grant SFA. A Global Perspective of Latent Autoimmune Diabetes in Adults. Trends Endocrinol Metab 2018; 29:638-650. [PMID: 30041834 DOI: 10.1016/j.tem.2018.07.001] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Revised: 06/30/2018] [Accepted: 07/02/2018] [Indexed: 12/21/2022]
Abstract
Latent autoimmune diabetes in adults (LADA) is characterized by the presence of islet autoantibodies and initial insulin independence, which can lead to misdiagnosis of type 2 diabetes (T2D). As such, understanding the genetic etiology of LADA could aid in more accurate diagnosis. However, there is ongoing debate regarding the exact definition of LADA, so understanding its impact in different populations when contrasted with type 1 diabetes (T1D) and T2D is one potential strategy to gain insight into its etiology. Unfortunately, the lack of consistent and thorough autoantibody screening around the world has hampered well-powered genetic studies of LADA. This review highlights recent genetic and epidemiological studies of LADA in diverse populations as well as the importance of autoantibody screening in facilitating future research.
Collapse
Affiliation(s)
- Rajashree Mishra
- Division of Human Genetics, The Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA; Graduate Group in Genomics and Computational Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; These authors contributed equally
| | - Kenyaita M Hodge
- Division of Human Genetics, The Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA; These authors contributed equally
| | - Diana L Cousminer
- Division of Human Genetics, The Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA; Department of Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Richard D Leslie
- Department of Immunobiology, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, E1 2AD, UK
| | - Struan F A Grant
- Division of Human Genetics, The Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA; Department of Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA; Center for Applied Genomics, The Children's Hospital of Philadelphia, Philadelphia, PA, 19104, USA; Institute for Diabetes, Obesity and Metabolism, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA; Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA.
| |
Collapse
|
13
|
Hajjej A, Almawi WY, Stayoussef M, Arnaiz-Villena A, Hattab L, Hmida S. Association of HLA-DRB1 and -DQB1 alleles with type 1 (autoimmune) diabetes in African Arabs: systematic review and meta-analysis. Immunol Invest 2018; 48:130-146. [PMID: 30004835 DOI: 10.1080/08820139.2018.1493498] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Several studies confirmed the association of HLA-DRB1 and -DQB1 alleles with altered risk of type 1 diabetes (T1D). However, data from individual studies based on small sample sizes yielded often conflicting findings in African Arabs. This is a systematic review and meta-analysis aimed at comprehensively evaluating this association with T1D, using molecular HLA data. Relevant studies were identified through systemic search of Medline/PubMed, Cochrane, Science Direct, ResearchGate, and EMBASE databases. Statistical analysis was carried out using RevMan, and Comprehensive Meta-analysis programs. Given the heterogeneity of African Arabs, we also performed subgroup analysis according to ethnicity. Analysis of sensitivity, heterogeneity, and publication bias were performed to validate the outcome of the findings. This meta-analysis included 862 T1DM cases, along with 1,390 normoglycemic control, and comprised ten comparisons. Our study indicates that DRB1*03 (OR = 2.86), DRB1*04 (OR = 2.78), and DQB1*02 (OR = 2.29), are positively associated with increased risk of T1DM, while DRB1*07 (OR = 0.48), DRB1*11 (OR = 0.20), DRB1*13 (OR = 0.47), DRB1*15 (OR = 0.30), DQB1*05 (OR = 0.39), and DQB1*06 (OR = 0.27) were negatively associated with T1D, suggesting a protective role against T1D. This meta-analysis was characterized by low heterogeneity, sensitivity, and publication bias, indicating the robustness and reliability of the results. BACKGROUND Several studies confirmed the association of HLA-DRB1 and -DQB1 alleles with altered risk of type 1 diabetes (T1D). However, data from individual studies based on small sample sizes yielded often conflicting findings in African Arabs. This is a systematic review and meta-analysis aimed at comprehensively evaluating this association with T1D, using molecular HLA data. METHODS Relevant studies were identified through systemic search of Medline/PubMed, Cochrane, Science Direct, ResearchGate, and EMBASE databases. Statistical analysis was carried out using Revman, and Comprehensive Meta-analysis programs. Given the heterogeneity of African Arabs, we also performed subgroup analysis according to ethnicity. Analysis of sensitivity, heterogeneity, and pub¬lication bias were performed to validate the outcome of the findings. This meta-analysis included 862 T1DM cases, along with 1,390 normoglycemic control, and comprised ten comparisons. RESULTS Our study indicates that DRB1*03 (OR = 2.86), DRB1*04 (OR = 2.78), and DQB1*02 (OR = 2.29), are positively associated with increased risk of T1DM, while DRB1*07 (OR = 0.48), DRB1*11 (OR = 0.20), DRB1*13 (OR = 0.47), DRB1*15 (OR = 0.30), DQB1*05 (OR = 0.39), and DQB1*06 (OR = 0.27) were negatively associated with T1D, suggesting a protective role against T1D. CONCLUSION This meta-analysis was characterized by low heterogeneity, sensitivity, and publication bias, indicating the robustness and reliability of the results.
Collapse
Affiliation(s)
- Abdelhafidh Hajjej
- a Department of Immunogenetics , National Blood Transfusion Center , Tunis , Tunisia
| | - Wassim Y Almawi
- b School of Pharmacy , Lebanese American University , Byblos , Lebanon.,c Department of Biology, Faculty of Sciences , El-Manar University , Tunis , Tunisia
| | - Mouna Stayoussef
- c Department of Biology, Faculty of Sciences , El-Manar University , Tunis , Tunisia
| | - Antonio Arnaiz-Villena
- d Department of Immunology, School of Medicine, Madrid Regional Blood Center , University Complutense , Madrid , Spain
| | - Lasmar Hattab
- e Department of Medical Analysis , Regional Hospital of Gabes (Ghannouch) , Gabes , Tunisia
| | - Slama Hmida
- a Department of Immunogenetics , National Blood Transfusion Center , Tunis , Tunisia
| |
Collapse
|
14
|
Haider MZ, Rasoul MA, Al-Mahdi M, Al-Kandari H, Dhaunsi GS. Association of protein tyrosine phosphatase non-receptor type 22 gene functional variant C1858T, HLA-DQ/DR genotypes and autoantibodies with susceptibility to type-1 diabetes mellitus in Kuwaiti Arabs. PLoS One 2018; 13:e0198652. [PMID: 29924845 PMCID: PMC6010291 DOI: 10.1371/journal.pone.0198652] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Accepted: 04/11/2018] [Indexed: 12/18/2022] Open
Abstract
The incidence of type-1 Diabetes Mellitus (T1DM) has increased steadily in Kuwait during recent years and it is now considered amongst the high-incidence countries. An interaction between susceptibility genes, immune system mediators and environmental factors predispose susceptible individuals to T1DM. We have determined the prevalence of protein tyrosine phosphatase non-receptor type 22 (PTPN22) gene functional variant (C1858T; R620W, rs2476601), HLA-DQ and DR alleles and three autoantibodies in Kuwaiti children with T1DM to evaluate their impact on genetic predisposition of the disease. This study included 253 Kuwaiti children with T1DM and 214 ethnically matched controls. The genotypes of PTPN22 gene functional variant C1858T (R620W; rs2476601) were detected by PCR-RFLP method and confirmed by DNA sequencing. HLA-DQ and DR alleles were determined by sequence-specific PCR. Three autoantibodies were detected in the T1DM patients using radio-immunoassays. A significant association was detected between the variant genotype of the PTPN22 gene (C1858T, rs2476601) and T1DM in Kuwaiti Arabs. HLA-DQ2 and DQ8 alleles showed a strong association with T1DM. In T1DM patients which carried the variant TT-genotype of the PTPN22 gene, 93% had at least one DQ2 allele and 60% carried either a DQ2 or a DQ8 allele. Amongst the DR alleles, the DR3-DRB5, DR3-3, DR3-4 and DR4-4 showed a strong association with T1DM. Majority of T1DM patients who carried homozygous variant (TT) genotype of the PTPN22 gene had either DR3-DRB5 or DRB3-DRB4 genotypes. In T1DM patients who co-inherited the high risk HLA DQ, DR alleles with the variant genotype of PTPN22 gene, the majority were positive for three autoantibodies. Our data demonstrate that the variant T-allele of the PTPN22 gene along with HLA-DQ2 and DQ8 alleles constitute significant determinants of genetic predisposition of T1DM in Kuwaiti children.
Collapse
Affiliation(s)
- Mohammad Z. Haider
- Department of Pediatrics, Faculty of Medicine, Kuwait University, Jabriya, Kuwait
| | - Majedah A. Rasoul
- Department of Pediatrics, Faculty of Medicine, Kuwait University, Jabriya, Kuwait
- Department of Pediatrics, Adan Hospital, Al-Adan, Kuwait
| | - Maria Al-Mahdi
- Department of Pediatrics, Adan Hospital, Al-Adan, Kuwait
| | | | - Gursev S. Dhaunsi
- Department of Pediatrics, Faculty of Medicine, Kuwait University, Jabriya, Kuwait
- Medical Laboratories, Mubarak Al-Kabeer Hospital, Jabriya, Kuwait
| |
Collapse
|
15
|
Singh S, Usha, Singh G, Agrawal NK, Singh RG, Kumar SB. Prevalence of Autoantibodies and HLA DR, DQ in Type 1 Diabetes Mellitus. J Clin Diagn Res 2016; 10:EC09-13. [PMID: 27630850 DOI: 10.7860/jcdr/2016/18657.8163] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2016] [Accepted: 05/23/2016] [Indexed: 12/16/2022]
Abstract
INTRODUCTION Type I diabetes Mellitus (T1DM) is caused by autoimmune destruction of β-cells of pancreas. Two forms of T1DM are known called as 1A (autoimmune) and 1B (idiopathic). AIM Aim was to study the prevalence of Anti-TTG IgA, Anti-TPO, GADA, ZnT8 and IA-2 autoantibodies and HLA DR and DQ genes and its diagnostic value in T1DM. MATERIALS AND METHODS Thirty four T1DM patients, 59 type 2 diabetes mellitus (T2DM) patients and 28 healthy controls were included in study. Antibodies levels were estimated by ELISA and HLA typing was performed by SSP-PCR method. RESULT The prevalence of various autoantibodies in T1DM were Anti-TTG 14.7%, Anti-TPO 17.65%, GADA 38.23%, ZnT8 11.76% and IA-2 5.88%. Only GADA and ZnT8 were significantly positive in T1DM. GADA (66.67%) and ZnT8 (33.33%) positivity was more in patients below 15 years age while levels of other antibodies were higher after 15 years age. All autoantibodies were detected in higher frequency in T1DM than in T2DM and controls. HLA DR and DQ typing showed highly significant increase in DRB1*0301 (61.76%, p=0.00) and DQB1*0201 (64.71%, p=0.00) in T1DM. Subjects with HLA DRB1*0301 and DQB1*0201 had 80-100% positive prevalence of GADA, ZnT8, IA-2, Anti-TTG and Anti-TPO autoantibodies. CONCLUSION Combination of GADA antibody with DRB1 and DQB1 estimation improved diagnosis of T1A than insulin antigen specific antibodies alone.
Collapse
Affiliation(s)
- Shailja Singh
- Research Scholar, Department of Pathology, Institute of Medical Sciences, Banaras Hindu University , Varanasi, UP, India
| | - Usha
- Professor and Incharge, UGC Advanced Immunodiagnostic Training and Research Centre, Department of Pathology, Institute of Medical Sciences, Banaras Hindu University , Varanasi, UP, India
| | - Gyanendra Singh
- Junior Resident, Department of Pathology, Institute of Medical Sciences, Banaras Hindu University , Varanasi, UP, India
| | - Neeraj Kumar Agrawal
- Professor, Department of Endocrinology, Institute of Medical Sciences, Banaras Hindu University , Varanasi, UP, India
| | - Rana Gopal Singh
- Professor, Department of Nephrology, Institute of Medical Sciences, Banaras Hindu University , Varanasi, UP, India
| | - Shashi Bhushan Kumar
- Service Senior Resident, Department of Pathology, Institute of Medical Sciences, Banaras Hindu University , Varanasi, UP, India
| |
Collapse
|
16
|
Abstract
Type 1 diabetes (T1D) is a complex autoimmune disorder that results from the T cell-mediated destruction of the pancreatic β cells and is due to interactions between environmental and genetic factors. Although Arabs have one of the highest global incidence and prevalence rates of T1D, unfortunately, there is a dearth of information regarding the genetic epidemiology of T1D in the Arab world. Arabs share several HLA haplotypes with other ethnic groups, which confer either susceptibility or protection to T1D, but they have specific haplotypes that are distinctive from other ethnicities. Among different Arab countries, several non-HLA genes were reported to be associated with susceptibility to T1D, including CTLA4, CD28, PTPN22, TCRβ, CD3z, IL15, BANK1, and ZAP70. In Arab countries, consanguinity, endogamy, and first-cousin marriage rates are some of the highest reported worldwide and are responsible for the creation of several inbreeding communities within the Arab world that have led to an increase in homozygosity of both the HLA haplotypes and non-HLA genes associated with either protection or susceptibility to T1D among Arabs. Homozygosity reduces the HLA complexity and is expected to facilitate our understanding of the mode of inheritance of HLA haplotypes and provide valuable insight into the intricate genotype-phenotype correlations in T1D patients. In this review, based on literature studies, I will discuss the current epidemiological profile and molecular genetic risks of Arabs with T1D.
Collapse
Affiliation(s)
- Hatem Zayed
- College of Health Sciences, Biomedical Program, Qatar University, Doha, Qatar.
| |
Collapse
|
17
|
Hamzeh AR, Nair P, Al-Khaja N, Al Ali MT. Association of HLA-DQA1 and -DQB1 alleles with type I diabetes in Arabs: a meta-analyses. ACTA ACUST UNITED AC 2016; 86:21-7. [PMID: 26095634 DOI: 10.1111/tan.12598] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2015] [Revised: 05/19/2015] [Accepted: 05/31/2015] [Indexed: 12/29/2022]
Abstract
This study aimed at assessing the nature and significance of associations between various alleles of HLA-DQA1, HLA-DQB1, and type I diabetes (T1D) in Arab populations. Evidence from literature (published before 20 April 2015) was amassed and analysed through multiple meta-analyses, which yielded effect summary odds ratios and 95% confidence intervals for 24 alleles and 4 haplotypes. A total of 1273 cases and 1747 controls from 16 studies were analysed. High levels of significance were obtained to support higher T1D risk when harbouring DQA1*03:01. The alleles DQB1*02:01 and *03:02 and the haplotypes DR3 and DR4 were significant risk factors, albeit with high publication heterogeneity. The protective effects of DQA1*01:01, DQB1*05:03, *06:02, *06:03, and *06:04 were robustly suggested by all indicators of meta-analyses. The haplotypes DR7 and DR11 were strongly suggested to be protective in Arabs. A relatively small number of studies have emerged from Arab countries, mostly with inadequate power on an individual basis. This study fills the gap by providing significant size effect of human leukocyte antigen (HLA) alleles and completes the continuum of global ethnic differences in this context.
Collapse
Affiliation(s)
- A R Hamzeh
- Centre for Arab Genomic Studies, Dubai, United Arab Emirates
| | - P Nair
- Centre for Arab Genomic Studies, Dubai, United Arab Emirates
| | - N Al-Khaja
- Centre for Arab Genomic Studies, Dubai, United Arab Emirates
| | - M T Al Ali
- Centre for Arab Genomic Studies, Dubai, United Arab Emirates
| |
Collapse
|
18
|
Hamzeh AR, Nair P, Al Ali MT. The profile of HLA-DRB1 alleles in Arabs with type 1 diabetes; meta-analyses. HLA 2015; 87:25-30. [PMID: 26818122 DOI: 10.1111/tan.12717] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2015] [Revised: 11/03/2015] [Accepted: 11/04/2015] [Indexed: 01/14/2023]
Abstract
Genes from the HLA complex have a major contribution in type 1 diabetes (T1D), which results from an interplay between environmental and genetic factors. The latter can explain some of the geographic variability in T1D occurrence around the world. Of a particular importance in this regard are the HLA-DR, -DP and -DQ loci. Consequently, we aimed at elucidating the collective genetic profiles of various alleles relating to HLA-DRB1 and -DP in T1D patients throughout the Arab World using the tools of meta-analysis. As for HLA-DQA1 and DQB1 alleles; this analysis was completed and published previously (see Introduction). As a result of limited availability of relevant studies of the HLA-DP locus, only HLA-DRB1 alleles were tackled in this paper. Our study showed that significant increases in T1D risk resulted from harboring the alleles DRB1*03:01 and *04:05 (odds ratio 7.76 and 7.52, respectively). DRB1*04:01 and *04:02 were also predisposing for T1D in Arabs. Very strong evidence supported the protective effects of DRB1*10:01, *13:01, *15:02 and *16:01, with low heterogeneity and no publication bias. The results from the series of meta-analyses performed in this study help to complete the global genetic epidemiological map of T1D by providing statistically robust data from the Arab World.
Collapse
Affiliation(s)
- A R Hamzeh
- Centre for Arab Genomic Studies, Dubai, United Arab Emirates
| | - P Nair
- Centre for Arab Genomic Studies, Dubai, United Arab Emirates
| | - M T Al Ali
- Centre for Arab Genomic Studies, Dubai, United Arab Emirates
| |
Collapse
|
19
|
Regulation of the Neurodegenerative Process Associated to Parkinson's Disease by CD4+ T-cells. J Neuroimmune Pharmacol 2015; 10:561-75. [PMID: 26018603 DOI: 10.1007/s11481-015-9618-9] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2015] [Accepted: 05/19/2015] [Indexed: 01/09/2023]
Abstract
Neuroinflammation constitutes a fundamental process involved in the physiopathology of Parkinson's disease (PD). Microglial cells play a central role in the outcome of neuroinflammation and consequent neurodegeneration of dopaminergic neurons in the substantia nigra. Current evidence indicates that CD4+ T-cells infiltrate the central nervous system (CNS) in PD, where they play a critical role determining the functional phenotype of microglia, thus regulating the progression of the neurodegenerative process. Here, we first analysed the pathogenic role of inflammatory phenotypes and the beneficial role of anti-inflammatory phenotypes of encephalitogenic CD4+ T-cells involved in the physiopathology of PD. Next, we discussed how alterations of neurotransmitter levels observed in the basal ganglia throughout the time course of PD progression could be strongly affecting the behaviour of encephalitogenic CD4+ T-cells and thereby the outcome of the neuroinflammatory process and the consequent neurodegeneration of dopaminergic neurons. Afterward, we integrated the evidence indicating the involvement of an antigen-specific immune response mediated by T-cells and B-cells against CNS-derived self-constituents in PD. Consistent with the involvement of a relevant autoimmune component in PD, we also reviewed the polymorphisms of both, class I and class II major histocompatibility complexes, associated to the risk of PD. Overall, this study gives an overview of how an autoimmune component involved in PD plays a fundamental role in the progression of the neurodegenerative process.
Collapse
|
20
|
El-Amir MI, El-Feky MA, Laine AP, Härkönen T, El-Badawy O, Eltayeb AA, El-Melegy TT, Kiviniemi M, Knip M, Ilonen J. Risk genes and autoantibodies in Egyptian children with type 1 diabetes - low frequency of autoantibodies in carriers of the HLA-DRB1*04:05-DQA1*03-DQB1*02 risk haplotype. Diabetes Metab Res Rev 2015; 31:287-94. [PMID: 25256132 DOI: 10.1002/dmrr.2609] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2014] [Revised: 07/24/2014] [Accepted: 09/02/2014] [Indexed: 12/14/2022]
Abstract
BACKGROUND The study aimed to define the frequencies of type 1 diabetes-associated gene polymorphisms and their associations with various diabetes-associated autoantibodies in Egyptian children. METHODS One hundred and one children with type 1 diabetes and 160 healthy controls from the same region were studied for HLA-DQB1, HLA-DQA1, and HLA-DRB1 (DR4 subtypes) alleles; for INS and protein tyrosine phosphatase, non-receptor type 22 gene polymorphisms (rs689 and rs2476601); and for diabetes-associated autoantibodies. RESULTS Most children with diabetes (77.2%) were positive for the HLA-(DR3)-DQA1*05-DQB1*02 (DR3-DQ2) haplotype compared with 26.2% of the controls (OR = 9.5; p < 0.001). HLA-DRB1*04:02-DQA1*03-DQB1*03:02 (DR4-DQ8) (26.7%, OR = 3.3; p < 0.001), DRB1*04:05-DQA1*03-DQB1*02 (DR4-DQ2) (23.8%, OR 5.2; p < 0.001), and DRB1*04:05-DQA1*03-DQB1*03:02 (DR4-DQ8) (8.9%, OR = 7.7; p = 0.007) were also significantly increased. HLA-(DR15)-DQB1*06:01, (DR13)-DQB1*06:03, and DRB1*04:03-DQA1*03-DQB1*03:02 were the most protective haplotypes with OR values from 0.04 to 0.06. Patients positive for DR3-DQ2 but negative for DR4 haplotypes had a high frequency of glutamic acid decarboxylase antibodies (78%; p < 0.001 versus other genotypes), but only 26.6% of those with DR3-DQ2/DR4-DQ2 tested positive for glutamic acid decarboxylase antibodies (p = 0.006 versus other genotypes). Subjects with the DR4-DQ8 haplotype without DR3-DQ2 or DR4-DQ2 were more often positive for islet antigen-2 and zinc transporter 8 antibodies (55.5%, p = 0.007 and 55.5%, p = 0.01 respectively). The AA genotype of the INS gene was more common in patients than in controls (75.2 versus 59.5%, OR = 2.07; p = 0.018). CONCLUSIONS Besides a strong HLA-DR3-DQ2 association, a relatively high frequency of the DR4-DQ2 haplotype characterized the diabetic population. The low frequency of autoantibodies in children with HLA-DR4-DQ2 may indicate specific pathogenetic pathways associated with this haplotype.
Collapse
Affiliation(s)
- Mostafa I El-Amir
- Immunogenetics Laboratory, University of Turku, Turku, Finland; Department of Microbiology and Immunology, Faculty of Medicine, South Valley University, Qena, Egypt
| | | | | | | | | | | | | | | | | | | |
Collapse
|
21
|
The Relationship of HLA Class I and II Alleles and Haplotypes with Autism: A Case Control Study. AUTISM RESEARCH AND TREATMENT 2014; 2014:242048. [PMID: 24672722 PMCID: PMC3929985 DOI: 10.1155/2014/242048] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/12/2013] [Revised: 11/30/2013] [Accepted: 12/02/2013] [Indexed: 11/20/2022]
Abstract
Earlier reports showed the relationship between autism and immune genes located in the human leukocyte antigen (HLA). In this current study, we compared the HLA class I and class II alleles and haplotypes in 35 autistic children with 100 control subjects from Saudi Arabia, using PCR-SSP method and Luminex technology. In class I the HLA-A*01 (P = 0.03, OR 2.68), A*02 (P = 0.001, OR 3.02) and HLA-B*07 (P = 0.01, OR 3.27), were significantly associated with autism. Also, the haplotype A*02-B*07 was significantly higher in autistic patients than in controls (P = 0.007, OR 5.83). In class II, DRB1*1104 was significantly higher in patients than in controls (P = 0.001, OR 8.75). The DQB1*0202 (P = 0.001,
OR 0.24), DQB1*0302 (P = 0.001,
OR 0.14), and DQB1*0501 (P = 0.012, OR 0.25), were negatively associated with disease. While the four-loci genotype study showed that A*01-B*07-DRB1*0701-DQB1*0602 (P = 0.001, OR 41.9) and the A*31-B*51-DRB1*0103-DQB1*0302 (P = 0.012, OR 4.8) are positively associated with autism among Saudi patients. This is the first report on a foreseeable risk of association of HLA-B*07 allele with autism. Thus, HLA-B*07 allele and the closely linked haplotype A*01 B*07 DRB1*0701 DQB1*0602 may serve as a marker for genetic susceptibility to autism in Saudis.
Collapse
|
22
|
Ma ZJ, Sun P, Guo G, Zhang R, Chen LM. Association of the HLA-DQA1 and HLA-DQB1 Alleles in Type 2 Diabetes Mellitus and Diabetic Nephropathy in the Han Ethnicity of China. J Diabetes Res 2013; 2013:452537. [PMID: 23671871 PMCID: PMC3647553 DOI: 10.1155/2013/452537] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/01/2013] [Revised: 01/29/2013] [Accepted: 01/29/2013] [Indexed: 12/24/2022] Open
Abstract
HLA gene system is one of the most polymorphic regions of the human genome. The association of HLA class II genes in T1DM pathogenesis has been reported for several ethnicities. Associations of HLA class II genes with T2DM have revealed inconsistent results. Moreover, correlations between DN and HLA alleles remain unclear. We carried out DNA typing chip by specific medium resolution typing probes in 310 T2DM subjects (including 210 patients with DN and 100 patients without DN) in addition to 100 healthy controls. Differences were found between patients with T2DM and the control group in the frequencies of the HLA-DQA1∗0301 (15.5% versus 8.0%, P < 0.01) and the HLA-DQA1∗0501 alleles (16.6% versus 8.5%, P < 0.01). Differences were found between patients with DN and without DN in the frequencies of the HLA-DQA1∗0302 (6.9% versus 13.5%, P < 0.01) and HLA-DQB1∗0501 alleles (5.8% versus 14.5%, P < 0.01). Diabetes duration and systolic blood pressure were independent risk factors associated with DN (OR = 2.277 and 1.366, resp., P < 0.05), whereas the HLA-DQB1∗0501 llele had a protective effect on DN (OR = 0.53, P < 0.05). These data suggest the HLA-DQA1∗0301 and HLA-DQA1∗0501 alleles are markers of susceptibility for T2DM, and the HLA-DQB1∗0501 allele is associated with a protective effect on DN in Han ethnicity of China.
Collapse
Affiliation(s)
- Ze-Jun Ma
- 2011 Collaborative Innovation Center of Tianjin for Medical Epigenetics, Key Laboratory of Hormone and Development (Ministry of Health), Metabolic Disease Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin 300070, China
| | - Pei Sun
- 2011 Collaborative Innovation Center of Tianjin for Medical Epigenetics, Key Laboratory of Hormone and Development (Ministry of Health), Metabolic Disease Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin 300070, China
| | - Gang Guo
- 2011 Collaborative Innovation Center of Tianjin for Medical Epigenetics, Key Laboratory of Hormone and Development (Ministry of Health), Metabolic Disease Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin 300070, China
| | - Rui Zhang
- 2011 Collaborative Innovation Center of Tianjin for Medical Epigenetics, Key Laboratory of Hormone and Development (Ministry of Health), Metabolic Disease Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin 300070, China
| | - Li-Ming Chen
- 2011 Collaborative Innovation Center of Tianjin for Medical Epigenetics, Key Laboratory of Hormone and Development (Ministry of Health), Metabolic Disease Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin 300070, China
- *Li-Ming Chen:
| |
Collapse
|
23
|
Sun C, Wei L, Luo F, Li Y, Li J, Zhu F, Kang P, Xu R, Xiao L, Liu Z, Xu P. HLA-DRB1 alleles are associated with the susceptibility to sporadic Parkinson's disease in Chinese Han population. PLoS One 2012; 7:e48594. [PMID: 23139797 PMCID: PMC3490875 DOI: 10.1371/journal.pone.0048594] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2012] [Accepted: 09/26/2012] [Indexed: 12/19/2022] Open
Abstract
Immune disorders may play an important role in the pathogenesis of Parkinson's disease (PD). Recently, polymorphisms in the HLA-DR region have been found to be associated with sporadic PD in European ancestry populations. However, polymorphisms in the HLA complex are highly variable with ethnic and geographic origin. To explore the relationships between polymorphisms of the HLA-DR region and sporadic PD in Chinese Han population, we genotyped 567 sporadic PD patients and 746 healthy controls in two independent series for the HLA-DRB1 locus with Polymerase chain reaction-sequence based typing(PCR-SBT). The χ(2) test was used to evaluate the distribution of allele frequencies between the patients and healthy controls. The impact of HLA-DRB1 alleles on PD risk was estimated by unconditional logistic regression. We found a significant higher frequency of HLA-DRB1*0301 in sporadic PD patients than in healthy controls and a positive association, which was independent of onset age, between HLA-DRB1*0301 and PD risk. Conversely, a lower frequency of HLA-DRB1*0406 was found in sporadic PD patients than in healthy controls, with a negative association between HLA-DRB1*0406 and PD risk. Furthermore, a meta-analysis involving 195205 individuals was conducted to summarize the frequencies of these two alleles in populations from various ethnic regions, we found a higher frequency of HLA-DRB1*0301, but a lower frequency of HLA-DRB1*0406 in European ancestry populations than that in Asians, this was consistent with the higher prevalence of sporadic PD in European ancestry populations. Based on these results, we speculate that HLA-DRB1 alleles are associated with the susceptibility to sporadic PD in Chinese Han population, among them HLA-DRB1*0301 is a risk allele while the effect of HLA-DRB1*0406 deserves debate.
Collapse
Affiliation(s)
- Congcong Sun
- Department of Neurology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, People’s Republic of China
| | - Lei Wei
- Department of Neurology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, People’s Republic of China
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, People’s Republic of China
| | - Feifei Luo
- Department of Neurology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, People’s Republic of China
- Department of Neurology, The Third People’s Hospital of Chengdu, Chengdu, People’s Republic of China
| | - Yi Li
- Department of Neurology, Department of Neurology, Red-Cross Hospital in Guangzhou, Guangzhou, People’s Republic of China
| | - Jiaobiao Li
- Department of Neurology, HeYuan City Hospital, Guangdong, People’s Republic of China
| | - Feiqi Zhu
- Department of Neurology, Yuebei People's Hospital of Shantou University Medical College, Guangdong, People’s Republic of China
| | - Ping Kang
- Department of Neurology, The First People’s Hospital of Shaoguan, Guangdong, People’s Republic of China
| | - Rensi Xu
- Department of Neurology, The First Affiliated Hospital of NanChang University, NanChang, People’s Republic of China
| | - LuLu Xiao
- Department of Tissue Typing Center, Nanfang Hospital of Southern Medical University, Guangzhou, People’s Republic of China
| | - Zhuolin Liu
- Department of Neurology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, People’s Republic of China
| | - Pingyi Xu
- Department of Neurology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, People’s Republic of China
| |
Collapse
|
24
|
Mosaad YM, Auf FA, Metwally SS, Elsharkawy AA, El-Hawary AK, Hassan RH, Tawhid ZE, El-Chennawi FA. HLA-DQB1* alleles and genetic susceptibility to type 1 diabetes mellitus. World J Diabetes 2012; 3:149-55. [PMID: 22919445 PMCID: PMC3425629 DOI: 10.4239/wjd.v3.i8.149] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2012] [Revised: 06/27/2012] [Accepted: 08/08/2012] [Indexed: 02/05/2023] Open
Abstract
AIM: To determine human leukocyte antigen (HLA)-DQB1 allele association with susceptibility to type 1 diabetes (T1D) and to clinical and laboratory findings.
METHODS: This study was conducted on 85 unrelated Egyptian children with T1D recruited consecutively from the Pediatric Diabetes Endocrinology outpatients Clinic; Mansoura University Children’s Hospital, Egypt. Patient mean follow up period was 2.5 years. Patients were subdivided according to level of HbA1c (optimal/suboptimal control < 8.5% and poor control ≥ 8.5%). The control group consisted of 113 unrelated age- and sex-matched healthy subjects without T1D or other autoimmune diseases. Genomic DNA extraction was done for all subjects using a DNA isolation kit. HLA-Class II-DQB1 allele typing was carried out with a polymerase chain reaction-sequence-specific oligonucleotide probe using a INNO-LiPA HLA-DQB1 update kit.
RESULTS: Significant differences were detected between Egyptian patients with T1D and control groups in the frequencies of DQB1*02 [44.4% vs 18.6%, corrected P value (Pc) < 0.001] and DQB1*03 (41.2% vs 24.4%, Pc < 0.001). Significant differences were also observed between control groups and T1D patients in the frequencies of DQB1*05 (14.6% vs 7.2%, P = 0.029) and DQB1*06 (34.1% vs 7.2%, P < 0.001). However, after correction for multiple comparisons, the significance was retained for HLA-DQB1*06 (Pc < 0.001) but lost for HLA-DQB1*05. HLA-DQB1*0201, *0202, *030201 were positively associated with T1D (Pc = 0.014, Pc < 0.001, and Pc < 0.001 respectively), while HLA-DQB1*060101 was negatively associated (Pc < 0.001) with the condition. Although the HLA-DQB1 alleles 030101 and 050101 were significantly higher in controls (P = 0.016, P = 0.025 respectively), both of them lost statistical significance after correction of P value. The frequency of the HLA-DQB1 genotypes 02/02, 02/03, and 03/03 was higher in T1D patients, and the frequency of the genotypes 03/06, 05/06, and 06/06 was higher in controls, these differences being statistically significant before correction. After correction, the genotypes 02/02, 02/03 in T1D, and the genotypes 03/06, 06/06 in controls were still significant (Pc = 0.01, Pc < 0.001, Pc < 0.001, and Pc = 0.04, respectively). Non-significant associations were found between the frequency HLA-DQB1 alleles and genotypes in T1D in relation to the grade of diabetic control, Microalbuminuria, age, gender, age of presentation, weight, height, frequency of diabetic ketoacidosis (P = 0.42), serum cholesterol, and fasting and post-prandial level of C-peptide (P = 0.83, P = 0.9, respectively).
CONCLUSION: The Current work suggests that HLA-DQB1 alleles *030201, *0202, *0201, and genotypes 02/03, 02/02 may be susceptibility risk factors for development of T1D in Egyptian children, while the HLA-DQB1*060101 allele, and 03/06, 06/06 genotypes may be protective factors. HLA-DQB1 alleles and genotypes do not contribute to microalbuminuria or grade of diabetic control.
Collapse
Affiliation(s)
- Youssef M Mosaad
- Youssef M Mosaad, Fatma A Auf, Shereen S Metwally, Ziyad E Tawhid, Farha A El-Chennawi, Unit of Clinical Immunology, Department of Clinical Pathology, Mansoura Faculty of Medicine, Mansoura 35111, Egypt
| | | | | | | | | | | | | | | |
Collapse
|
25
|
Cruz-Tapias P, Pérez-Fernández OM, Rojas-Villarraga A, Rodríguez-Rodríguez A, Arango MT, Anaya JM. Shared HLA Class II in Six Autoimmune Diseases in Latin America: A Meta-Analysis. Autoimmune Dis 2012; 2012:569728. [PMID: 22577522 PMCID: PMC3345213 DOI: 10.1155/2012/569728] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2011] [Accepted: 01/20/2012] [Indexed: 12/23/2022] Open
Abstract
The prevalence and genetic susceptibility of autoimmune diseases (ADs) may vary depending on latitudinal gradient and ethnicity. The aims of this study were to identify common human leukocyte antigen (HLA) class II alleles that contribute to susceptibility to six ADs in Latin Americans through a meta-analysis and to review additional clinical, immunological, and genetic characteristics of those ADs sharing HLA alleles. DRB1(∗)03:01 (OR: 4.04; 95%CI: 1.41-11.53) was found to be a risk factor for systemic lupus erythematosus (SLE), Sjögren's syndrome (SS), and type 1 diabetes mellitus (T1D). DRB1(∗)04:05 (OR: 4.64; 95%CI: 2.14-10.05) influences autoimmune hepatitis (AIH), rheumatoid arthritis (RA), and T1D; DRB1(∗)04:01 (OR: 3.86; 95%CI: 2.32-6.42) is a susceptibility factor for RA and T1D. Opposite associations were found between multiple sclerosis (MS) and T1D. DQB1(∗)06:02 and DRB1(∗)15 alleles were risk factors for MS but protective factors for T1D. Likewise, DQB1(∗)06:03 allele was a risk factor for AIH but a protective one for T1D. Several common autoantibodies and clinical associations as well as additional shared genes have been reported in these ADs, which are reviewed herein. These results indicate that in Latin Americans ADs share major loci and immune characteristics.
Collapse
Affiliation(s)
- Paola Cruz-Tapias
- Center for Autoimmune Diseases Research (CREA), School of Medicine and Health Sciences, Universidad del Rosario, Carrera 24 No. 63C-69, Bogotá, Colombia
- Doctoral Program in Biomedical Sciences, Universidad del Rosario, Bogotá, Colombia
| | - Oscar M. Pérez-Fernández
- Center for Autoimmune Diseases Research (CREA), School of Medicine and Health Sciences, Universidad del Rosario, Carrera 24 No. 63C-69, Bogotá, Colombia
| | - Adriana Rojas-Villarraga
- Center for Autoimmune Diseases Research (CREA), School of Medicine and Health Sciences, Universidad del Rosario, Carrera 24 No. 63C-69, Bogotá, Colombia
| | - Alberto Rodríguez-Rodríguez
- Center for Autoimmune Diseases Research (CREA), School of Medicine and Health Sciences, Universidad del Rosario, Carrera 24 No. 63C-69, Bogotá, Colombia
| | - María-Teresa Arango
- Center for Autoimmune Diseases Research (CREA), School of Medicine and Health Sciences, Universidad del Rosario, Carrera 24 No. 63C-69, Bogotá, Colombia
- Doctoral Program in Biomedical Sciences, Universidad del Rosario, Bogotá, Colombia
| | - Juan-Manuel Anaya
- Center for Autoimmune Diseases Research (CREA), School of Medicine and Health Sciences, Universidad del Rosario, Carrera 24 No. 63C-69, Bogotá, Colombia
| |
Collapse
|
26
|
Al-Daghri NM, Al-Attas O, Alokail MS, Alkharfy KM, Draz HM, Agliardi C, Mohammed AK, Guerini FR, Clerici M. Vitamin D Receptor Gene Polymorphisms and HLA DRB1*04 Cosegregation in Saudi Type 2 Diabetes Patients. THE JOURNAL OF IMMUNOLOGY 2012; 188:1325-32. [DOI: 10.4049/jimmunol.1101954] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
|
27
|
Glutamic acid decarboxylase 65 and islet cell antigen 512/IA-2 autoantibodies in relation to human leukocyte antigen class II DR and DQ alleles and haplotypes in type 1 diabetes mellitus. CLINICAL AND VACCINE IMMUNOLOGY : CVI 2011; 18:990-3. [PMID: 21490167 DOI: 10.1128/cvi.00073-11] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The frequencies of autoantibodies against glutamic acid decarboxylase 65 (GAD65) and islet cell antigen (ICA) 512/IA-2 (512/IA-2) are functions of the specific human leukocyte antigen (HLA) in type 1 diabetes mellitus (T1D). We investigated the association of HLA class II (DR and DQ) alleles and haplotypes with the presence of GAD and IA-2 autoantibodies in T1D. Autoantibodies were tested in 88 Tunisian T1D patients and 112 age- and gender-matched normoglycemic control subjects by enzyme immunoassay. Among T1D patients, mean anti-GAD antibody titers were higher in the DRB1*030101 allele (P < 0.001), together with the DRB1*030101/DQB1*0201 (P < 0.001) and DRB1*040101/DQB1*0302 (P = 0.002) haplotypes, while lower anti-GAD titers were associated with the DRB1*070101 (P = 0.001) and DRB1*110101 (P < 0.001) alleles and DRB1*070101/DQB1*0201 (P = 0.001) and DRB1*110101/DQB1*030101 (P = 0.001) haplotypes. Mean anti-IA-2 antibody titers were higher in the DRB1*040101 allele (P = 0.007) and DRB1*040101/DQB1*0302 (P = 0.001) haplotypes but were lower in the DRB1*110101 allele (P = 0.010) and the DRB1*110101 (P < 0.001) and DRB1*110101/DQB1*030101 (P = 0.025) haplotypes. Multinomial regression analysis confirmed the positive association of DRB1*030101 and the negative association of DRB1*110101 and DQB1*030101, along with the DRB1*070101/DQB1*0201 and DRB1*110101/DQB1*030101 haplotypes, with anti-GAD levels. In contrast, only the DRB1*040101/DQB1*0302 haplotype was positively associated with altered anti-IA-2 titers. Increased GAD65 and IA-2 antibody positivity is differentially associated with select HLA class II alleles and haplotypes, confirming the heterogeneous nature of T1D.
Collapse
|