1
|
Duc Nguyen H, Ardeshir A, Fonseca VA, Kim WK. Cluster of differentiation molecules in the metabolic syndrome. Clin Chim Acta 2024; 561:119819. [PMID: 38901629 DOI: 10.1016/j.cca.2024.119819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2024] [Revised: 06/12/2024] [Accepted: 06/13/2024] [Indexed: 06/22/2024]
Abstract
Metabolic syndrome (MetS) represents a significant public health concern due to its association with an increased risk of cardiovascular disease, type 2 diabetes, and other serious health conditions. Despite extensive research, the underlying molecular mechanisms contributing to MetS pathogenesis remain elusive. This review aims to provide a comprehensive overview of the molecular mechanisms linking MetS and cluster of differentiation (CD) markers, which play critical roles in immune regulation and cellular signaling. Through an extensive literature review with a systematic approach, we examine the involvement of various CD markers in MetS development and progression, including their roles in adipose tissue inflammation, insulin resistance, dyslipidemia, and hypertension. Additionally, we discuss potential therapeutic strategies targeting CD markers for the management of MetS. By synthesizing current evidence, this review contributes to a deeper understanding of the complex interplay between immune dysregulation and metabolic dysfunction in MetS, paving the way for the development of novel therapeutic interventions.
Collapse
Affiliation(s)
- Hai Duc Nguyen
- Division of Microbiology, Tulane National Primate Research Center, Tulane University, Covington, LA, USA
| | - Amir Ardeshir
- Division of Microbiology, Tulane National Primate Research Center, Tulane University, Covington, LA, USA; Department of Microbiology and Immunology, Tulane University School of Medicine, New Orleans, LA, USA
| | - Vivian A Fonseca
- Department Endocrinology Metabolism & Diabetes, Tulane University School of Medicine, New Orleans, LA, USA
| | - Woong-Ki Kim
- Division of Microbiology, Tulane National Primate Research Center, Tulane University, Covington, LA, USA; Department of Microbiology and Immunology, Tulane University School of Medicine, New Orleans, LA, USA.
| |
Collapse
|
2
|
Gunavathy N, Asirvatham A, Chitra A, Jayalakshmi M. Association of CTLA-4 and CD28 Gene Polymorphisms with Type 1 Diabetes in South Indian Population. Immunol Invest 2019; 48:659-671. [PMID: 31094250 DOI: 10.1080/08820139.2019.1590395] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Each functional gene illustrates the complexity of genetic predisposition to disease; however, it is difficult to bring out these traits with reference to autoimmune diseases like type 1 diabetes (T1D). To find out the genetic contribution of CTLA-4 + 49A/G, CTLA-4 -318C/T and CD28 + 17T/C polymorphisms toward T1D, the present study was performed with 124 T1D patients, 54 siblings and 125 parents including 39 trios in South Indian population. The association and linkage of CTLA-4 + 49A/G, CTLA-4 -318C/T and CD28 + 17T/C polymorphisms with T1D were analyzed and transmission disequilibrium test was performed. CTLA-4 G allele carrying genotypes (GG+AG) showed a higher risk association and can be considered as susceptible to develop T1D among patients with age at diagnosis from 0 to 10 years as compared to siblings (OR = 2.9; pc = 0.047) and parents (OR = 2.7; pc = 0.036). On the other hand, a strong protection against the disease (age at diagnosis; 0-10 years) was observed with CTLA-4 + 49AA genotype (OR = 0.37; pc = 0.036) and combined AA/CC genotype (OR = 0.31; pc = 0.034) of CTLA-4 + 49A/G and CTLA-4 -318C/T polymorphisms. However, a significant association was not observed between CTLA-4 -318C/T and CD28 + 17T/C polymorphisms and T1D. This family-based study reports a strong association between possible genotypes of CTLA-4 gene polymorphism and T1D in South Indian population, particularly in younger individuals.
Collapse
Affiliation(s)
- Nagarajan Gunavathy
- a Department of Immunology, School of Biological Sciences , Madurai Kamaraj University , Madurai , Tamil Nadu , India
| | - Arthur Asirvatham
- b Department of Diabetology , Government Rajaji Hospital , Madurai , Tamil Nadu , India
| | - Ayyappan Chitra
- c Institute of Child health and Research Centre , Government Rajaji Hospital , Madurai , Tamil Nadu , India
| | - Mariakuttikan Jayalakshmi
- a Department of Immunology, School of Biological Sciences , Madurai Kamaraj University , Madurai , Tamil Nadu , India
| |
Collapse
|
3
|
Shih YL, Lu HF, Hsiao CW, Ho KT, Chen PC, Huang CN, Chang Y, Kao SJ, Shiau MY, Chang YH. Distribution of Cytotoxic T Lymphocyte-Associated Antigen-4 Promoter Polymorphisms in Taiwanese Patients with Type 2 Diabetes Mellitus. Int J Med Sci 2018; 15:395-402. [PMID: 29511375 PMCID: PMC5835710 DOI: 10.7150/ijms.23097] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Accepted: 01/05/2018] [Indexed: 11/05/2022] Open
Abstract
Type 2 diabetes mellitus (T2DM) is associated with chronic inflammation, suggesting the metabolic abnormalities are originated from or exacerbated by cytokine overproduction. Cytokines and counter-regulatory molecules are crucial in keeping the balance of immune responses and, therefore, are potential candidates involved in T2DM etiology, development and complications. Our previous reports identify several significant associations between the genotypes of cytokine genes and T2DM and/or the clinical lipid parameters, which strongly suggest the participation of immune-regulatory molecules in lipid metabolism. The aim of this study is to determine the distribution of gene encoding cytotoxic T lymphocyte-associated antigen-4 (CTLA-4), a T-cell negative regulator, in T2DM patients and health subjects. Genomic DNA was extracted from 287 Taiwanese T2DM patients and 278 ethnic- and age- matched healthy subjects, and two CTLA-4 polymorphisms (-318 C/T and +49 A/G) were analyzed by polymerase chain reaction-restriction fragment length polymorphism. Intriguingly, CTLA-4 -318 genotype was associated with circulatory triglycerides in T2DM subjects (P=0.019) although no significant association between CTLA-4 -318 (P=0.119) and +49 (P=0.2) genotypes with T2DM was identified. In addition, CTLA-4 +49 genotype was significantly associated with the ratio between total cholesterol and high-density lipoprotein (P=0.004) in control subjects. Our results suggest that CTLA-4 may be involved in lipid metabolism and affect T2DM disease progression and/or the development of diabetic complications although this gene does not represent a major risk factor for T2DM.
Collapse
Affiliation(s)
- Yung-Luen Shih
- Department of Pathology and Laboratory Medicine, Shin Kong Wu Ho-Su Memorial Hospital, Taipei.,School of Medical Laboratory Science and Biotechnology, Taipei Medical University, Taipei.,School of Medicine, College of Medicine, Fu-Jen Catholic University, New Taipei City
| | - Hsu-Feng Lu
- Department of Clinical Pathology, Cheng Hsin General Hospital, Taipei
| | - Chiao-Wan Hsiao
- Program in Molecular Medicine, National Yang-Ming University and Academia Sinica, Taipei.,Department of Biotechnology and Laboratory Science in Medicine, National Yang-Ming University, Taipei
| | - Kuo-Ting Ho
- Department of Biotechnology and Laboratory Science in Medicine, National Yang-Ming University, Taipei.,Hi-Q Clinical Laboratory, Quanzhou, Fujian Province, PRC
| | - Pei-Chi Chen
- Divisions of Endocrinology and Metabolism, Shin Kong Wu Ho-Su Memorial Hospital, Taipei
| | - Chien-Ning Huang
- Department of Internal Medicine, Chung Shan Medical University Hospital, Taichung.,School of Medicine, Chung Shan Medical University, Taichung
| | - Yuanmay Chang
- Department of Long Term Care, MacKay Medical College, New Taipei City
| | - Shang-Jyh Kao
- Pulmonary Division, Shin Kong Wu Ho-Su Memorial Hospital, Taipei
| | - Ming-Yuh Shiau
- Department of Nursing, College of Nursing, Hungkuang University, Taichung, Taiwan
| | - Yih-Hsin Chang
- Department of Biotechnology and Laboratory Science in Medicine, National Yang-Ming University, Taipei
| |
Collapse
|
4
|
Qin XY, Lu J, Li GX, Wen L, Liu Y, Xu LP, Chang YJ, Liu KY, Jiang ZF, Huang XJ. CTLA-4 polymorphisms are associated with treatment outcomes of patients with multiple myeloma receiving bortezomib-based regimens. Ann Hematol 2017; 97:485-495. [DOI: 10.1007/s00277-017-3203-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2017] [Accepted: 12/04/2017] [Indexed: 12/25/2022]
|
5
|
Qin XY, Wang Y, Li GX, Qin YZ, Wang FR, Xu LP, Chen H, Han W, Wang JZ, Zhang XH, Chang YJ, Liu KY, Jiang ZF, Huang XJ. CTLA-4 polymorphisms and haplotype correlate with survival in ALL after allogeneic stem cell transplantation from related HLA-haplotype-mismatched donor. J Transl Med 2016; 14:100. [PMID: 27118383 PMCID: PMC4847362 DOI: 10.1186/s12967-016-0864-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2015] [Accepted: 04/12/2016] [Indexed: 11/25/2022] Open
Abstract
Background Allogeneic hematopoietic stem cell transplantation (allo-HSCT) has been established as an effective treatment for patients with hematological malignancies. Disease relapse remains a major cause of transplant failure. T cell homeostasis is critical to determine the potency of the GVT effect. Recent studies have shown the association of the CTLA-4 polymorphisms with the outcome after HLA-identical sibling allogeneic HSCT. Methods In this study, we focused on four CTLA-4 polymorphisms, and analyzed the impact of donor genotypes and haplotypes on the conditions of 152 acute leukemia patients (ALL 83) after related HLA-haplotype- mismatched transplantation. The four SNP genotypes (−1661, −318, CT60 and +49) were determined by TaqMan SNP genotyping assays. Results ALL recipients of donors with +49 GG showed significantly lower OS (67.7 vs. 90.3 %, P = 0.015) than those with GA+AA. Multivariate analyses showed that +49 GG was an independent risk factor for OS (HR: 0.306, 95 % CI 0.111–0.842, P = 0.022) .23 ALL patients receiving mDLI showed significantly lower OS with +49 GG donor than those with GA+AA (30.0 vs. 83.1 %, P = 0.003). The haplotype analysis revealed only three haplotypes in the donor population −1661/−318/CT60/+49 i.e., ACGG, ACAA and GTGA, the frequencies were 64.1, 19.4 and 16.5 %, respectively. Donors with and without the ACGG/ACGG haplotype had the same effect on transplant outcomes as those with +49 GG and +49 GA+AA. Conclusion In summary, the CTLA-4 +49 GG and the haplotype ACGG/ACGG reduced the overall survival in ALL after allo-HSCT from the related HLA-haplotype-mismatched donor, knowledge of the CTLA-4 polymorphism and haplotype may provide useful information for donor selection and individual application of immunosuppressive agents and immunotherapy.
Collapse
Affiliation(s)
- X-Y Qin
- Peking University People's Hospital, Peking University Institute of Hematology, Beijing, China.,Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China
| | - Y Wang
- Peking University People's Hospital, Peking University Institute of Hematology, Beijing, China.,Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China
| | - G-X Li
- Peking University People's Hospital, Peking University Institute of Hematology, Beijing, China.,Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China
| | - Y-Z Qin
- Peking University People's Hospital, Peking University Institute of Hematology, Beijing, China.,Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China
| | - F-R Wang
- Peking University People's Hospital, Peking University Institute of Hematology, Beijing, China.,Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China
| | - L-P Xu
- Peking University People's Hospital, Peking University Institute of Hematology, Beijing, China.,Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China
| | - H Chen
- Peking University People's Hospital, Peking University Institute of Hematology, Beijing, China.,Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China
| | - W Han
- Peking University People's Hospital, Peking University Institute of Hematology, Beijing, China.,Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China
| | - J-Z Wang
- Peking University People's Hospital, Peking University Institute of Hematology, Beijing, China.,Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China
| | - X-H Zhang
- Peking University People's Hospital, Peking University Institute of Hematology, Beijing, China.,Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China
| | - Y-J Chang
- Peking University People's Hospital, Peking University Institute of Hematology, Beijing, China.,Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China
| | - K-Y Liu
- Peking University People's Hospital, Peking University Institute of Hematology, Beijing, China.,Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China
| | - Z-F Jiang
- State Key Laboratory of Protein and Plant Gene Research, Key Laboratory of Cell Proliferation and Differentiation of the Ministry of Education school of Life Sciences, Peking University, Beijing, China.,Peking University-Tsinghua University Joint Center for Life Sciences, Beijing, China
| | - X-J Huang
- Peking University People's Hospital, Peking University Institute of Hematology, Beijing, China. .,Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China. .,Peking-Tsinghua Center for Life Sciences, Beijing, China. .,Peking University People's Hospital, Peking University Institute of Hematology, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Peking-Tsinghua Center for Life Sciences, 11 Xizhimen South Street, Beijing, 100044, Peoples' Republic of China.
| |
Collapse
|
6
|
Kumar N, Kaur G, Kanga U, Mehra NK, Neolia SC, Tandon N, Zucman SC. CTLA4+49G allele associates with early onset of type 1 diabetes in North Indians. Int J Immunogenet 2015; 42:445-52. [DOI: 10.1111/iji.12233] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Revised: 06/22/2015] [Accepted: 07/19/2015] [Indexed: 12/15/2022]
Affiliation(s)
- N. Kumar
- Department of Transplant Immunology and Immunogenetics; All India Institute of Medical Sciences; New Delhi India
| | - G. Kaur
- Department of Transplant Immunology and Immunogenetics; All India Institute of Medical Sciences; New Delhi India
| | - U. Kanga
- Department of Transplant Immunology and Immunogenetics; All India Institute of Medical Sciences; New Delhi India
| | - N. K. Mehra
- Department of Transplant Immunology and Immunogenetics; All India Institute of Medical Sciences; New Delhi India
| | - S. C. Neolia
- Department of Transplant Immunology and Immunogenetics; All India Institute of Medical Sciences; New Delhi India
| | - N. Tandon
- Department of Endocrinology and Metabolism; All India Institute of Medical Sciences; New Delhi India
| | - S. C. Zucman
- Institut National de la Santé et de la Recherche Médicale (INSERM) UMR 1149; Hôpital Robert Debre; Université Paris Diderot; Paris France
| |
Collapse
|
7
|
Investigation of CTLA-4-318C/T gene polymorphism in cases with type 1 diabetes of Azerbaijan, Northwest Iran. Immunol Lett 2015; 166:134-9. [DOI: 10.1016/j.imlet.2015.05.021] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2015] [Revised: 05/17/2015] [Accepted: 05/27/2015] [Indexed: 12/13/2022]
|
8
|
Ruhi Ç, Sallakçi N, Yeğin O, Süleymanlar G, Ersoy FF. The influence of CTLA-4 single nucleotide polymorphisms on acute kidney allograft rejection in Turkish patients. Clin Transplant 2015; 29:612-8. [PMID: 25981560 DOI: 10.1111/ctr.12563] [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] [Accepted: 05/09/2015] [Indexed: 01/06/2023]
Abstract
Cytotoxic T-lymphocyte antigen-4 (CTLA-4) is a cell surface protein, which down-regulates the immune response at CTLA-4/CD28/B7 pathway. We aimed to investigate the influence of the -318 C/T, +49 A/G, -1661 A/G and CT60A/G, and CTLA-4 gene polymorphisms on acute rejection of kidney allograft in Turkish patients. The study design was a case-control study that consists of three groups: Group 1 (n = 34) represented the kidney transplant (Ktx) recipients who experienced acute rejection, Group 2 (n = 47) was randomly assigned Ktx recipients without acute rejection, and Group 3 (n = 50) consisting of healthy volunteers to evaluate the normal genomic distribution. The polymerase chain reaction-restriction fragment length polymorphism technique was used to determine the polymorphisms. Genotype and allele frequencies among three groups denoted similar distributions for +49 A/G, -1661 A/G, and CT60A/G. Conversely, -318 C/T genotype was three times more frequent in the acute rejection group than in the non-rejection group (OR = 3.45; 95%CI = 1.18-10.1, p = 0.015) and two times more frequent than the healthy control group (OR = 2.45; 95% CI = 0.98 - 6.11, p = 0.047). Additionally, having a T allele at -318 position was significantly associated with acute rejection (0.147 vs. 0.043, OR = 3.45; 95% CI = 1.13-10.56, p = 0.02). 318C/T gene polymorphism and T allelic variant were found to be associated with increased acute rejection risk in Turkish kidney allograft recipients.
Collapse
Affiliation(s)
- Çağlar Ruhi
- Transplantation Center and Health Sciences Research Center, Akdeniz University Medical School, Antalya, Turkey
| | - Nilgün Sallakçi
- Transplantation Center and Health Sciences Research Center, Akdeniz University Medical School, Antalya, Turkey
| | - Olcay Yeğin
- Transplantation Center and Health Sciences Research Center, Akdeniz University Medical School, Antalya, Turkey
| | - Gültekin Süleymanlar
- Transplantation Center and Health Sciences Research Center, Akdeniz University Medical School, Antalya, Turkey
| | - F Fevzi Ersoy
- Transplantation Center and Health Sciences Research Center, Akdeniz University Medical School, Antalya, Turkey
| |
Collapse
|
9
|
Devarajan P, Miska J, Lui JB, Swieboda D, Chen Z. Opposing effects of CTLA4 insufficiency on regulatory versus conventional T cells in autoimmunity converge on effector memory in target tissue. THE JOURNAL OF IMMUNOLOGY 2014; 193:4368-80. [PMID: 25246499 DOI: 10.4049/jimmunol.1400876] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Quantitative variations in CTLA4 expression, because of genetic polymorphisms, are associated with various human autoimmune conditions, including type 1 diabetes (T1D). Extensive studies have demonstrated that CTLA4 is not only essential for the suppressive role of regulatory T cells (T(reg)) but also required for intrinsic control of conventional T (T(conv)) cells. We report that a modest insufficiency of CTLA4 in mice, which mimics the effect of some human CTLA4 genetic polymorphisms, accompanied by a T1D-permissive MHC locus, was sufficient to induce juvenile-onset diabetes on an otherwise T1D-resistant genetic background. Reduction in CTLA4 levels had an unanticipated effect in promoting Treg function both in vivo and in vitro. It led to an increase in T(reg) memory in both lymphoid and nonlymphoid target tissue. Conversely, modulating CTLA4 by either RNA interference or Ab blockade promoted conventional effector memory T cell formation in the T(conv) compartment. The CD4(+) conventional effector memory T cells, including those within target tissue, produced IL-17 or IFN-γ. Blocking IL-7 signaling reduced the Th17 autoimmune compartment but did not suppress the T1D induced by CTLA4 insufficiency. Enhanced effector memory formation in both T(conv) and T(reg) lineages may underpin the apparently dichotomized impact of CTLA4 insufficiency on autoimmune pathogenesis. Therefore, although the presence of CTLA4 plays a critical role in controlling homeostasis of T cells, its quantitative variation may impose diverse or even opposing effects on distinct lineages of T cells, an optimal sum of which is necessary for preservation of T cell immunity while suppressing tissue damage.
Collapse
Affiliation(s)
- Priyadharshini Devarajan
- Department of Microbiology and Immunology, University of Miami Miller School of Medicine, Miami, FL 33136; and
| | - Jason Miska
- Department of Microbiology and Immunology, University of Miami Miller School of Medicine, Miami, FL 33136; and
| | - Jen Bon Lui
- Department of Microbiology and Immunology, University of Miami Miller School of Medicine, Miami, FL 33136; and
| | - Dominika Swieboda
- Department of Microbiology and Immunology, University of Miami Miller School of Medicine, Miami, FL 33136; and
| | - Zhibin Chen
- Department of Microbiology and Immunology, University of Miami Miller School of Medicine, Miami, FL 33136; and Diabetes Research Institute, University of Miami Miller School of Medicine, Miami, FL 33136
| |
Collapse
|
10
|
Ahmadi S, Rostamzadeh J, Khosravi D, Shariati P, Shakiba N. Association of CTLA-4 gene 49A/G polymorphism with the incidence of type 1 diabetes mellitus in the Iranian Kurdish population. Pak J Biol Sci 2014; 16:1929-35. [PMID: 24517008 DOI: 10.3923/pjbs.2013.1929.1935] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Cytotoxic T-lymphocyte-associated antigen-4 (CTLA-4) has an inhibitory function on T cells and is critical for the induction of peripheral tolerance. CTLA-4 +49 G allele affects the CTLA-4 function and has been reported to be correlated with a higher risk of various autoimmune diseases including type 1 diabetes (T1D). The present study was conducted to investigate the association between the polymorphism of the CTLA-4 exon 1+49 A/G and susceptibility to TID and type 2 diabetes (T2D) in Kurds living in Iranian Kurdistan. The+49 A/G polymorphism was analyzed in 60 patients with T1D, 56 patients with T2D and 107 control subjects using PCR Single-strand Conformation Polymorphism (SSCP) and restriction fragment length polymorphism methods. All studied populations (T1D, T2D and Controls) were in Hardy-Weinberg equilibrium (p, 0.39, 0.94 and 0.89, respectively). Both+49 G allele (p = 0. 015, OR = 1.86) and +49 A/G genotype frequencies (p = 0. 012, OR = 2.31) were significantly higher in T1D patients than control. There was significant over-representation of the G allele in female T1D patients. No significant differences in +49 G allele and +49 A/G genotype frequencies were found between T2D and control subjects. SSCP analysis did not show new mutation in the amplified segment. The results of this study indicate that CTLA-4+49 A/G gene polymorphism confers genetic susceptibility to T1D but not T2D in the Kurdish population living in Iranian Kurdistan and women carrying the +49 G allele are at greater risk of getting T1D than men having the G allele.
Collapse
Affiliation(s)
- Slahadin Ahmadi
- Cellular and Molecular Research Center, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - Jalal Rostamzadeh
- Cellular and Molecular Research Center, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - Darya Khosravi
- Cellular and Molecular Research Center, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - Parvin Shariati
- Laboratory of Genetics, Department of Animal Sciences, University of Kurdistan, Sanandaj, Iran
| | - Nadia Shakiba
- Kurdistan Diabetes Center, Tohid hospital, Sanandaj, Iran
| |
Collapse
|
11
|
Wang J, Liu L, Ma J, Sun F, Zhao Z, Gu M. Common variants on cytotoxic T lymphocyte antigen-4 polymorphisms contributes to type 1 diabetes susceptibility: evidence based on 58 studies. PLoS One 2014; 9:e85982. [PMID: 24465825 PMCID: PMC3900458 DOI: 10.1371/journal.pone.0085982] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2013] [Accepted: 12/03/2013] [Indexed: 11/20/2022] Open
Abstract
In the past decade, a number of case–control studies have been carried out to investigate the relationship between the CTLA4 gene polymorphisms and type 1 diabetes (T1D). However, these studies have yielded contradictory results. To investigate this inconsistency, we performed a meta-analysis of all available studies dealing with the relationship between the CTLA4 polymorphism and T1D. In total, 58 association studies on two CTLA4 polymorphisms (G49A and C60T) and risk of T1D, including a total of 30,723 T1D cases and 45,254 controls were included. In a combined analysis, the summary per-allele odds ratio (OR) for T1D of the G49A and C60T polymorphism was 1.42 [95% confidence interval (CI): 1.31–1.53, P<10−5] and 1.23 (95% CI: 1.18–1.29, P<10−5), respectively. Significant results were also observed using dominant or recessive genetic model. In the subgroup analysis by ethnicity and sample size, significantly increased risks were also found for these polymorphisms. This meta-analysis demonstrated that the G49A and C60T polymorphism of CTLA4 is a risk factor associated with increased T1D susceptibility, but these associations vary in different ethnic populations.
Collapse
Affiliation(s)
- Jingnan Wang
- Department of Endocrine, Shanghai Pudong New Area Gongli Hospital, Shanghai, People's Republic of China
| | - Lianyong Liu
- Department of Endocrine, Shanghai Pudong New Area Gongli Hospital, Shanghai, People's Republic of China
| | - Junhua Ma
- Department of Endocrine, Shanghai Pudong New Area Gongli Hospital, Shanghai, People's Republic of China
| | - Fei Sun
- Department of Endocrine, Shanghai Pudong New Area Gongli Hospital, Shanghai, People's Republic of China
| | - Zefei Zhao
- Department of Endocrine, Shanghai Pudong New Area Gongli Hospital, Shanghai, People's Republic of China
| | - Mingjun Gu
- Department of Endocrine, Shanghai Pudong New Area Gongli Hospital, Shanghai, People's Republic of China
- * E-mail:
| |
Collapse
|
12
|
Xu HB, Yang H, Liu T, Chen H. Association of CTLA4 gene polymorphism (rs5742909) with cervical cancer: a meta-analysis. Tumour Biol 2013; 35:1605-8. [PMID: 24122201 DOI: 10.1007/s13277-013-1221-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2013] [Accepted: 09/16/2013] [Indexed: 01/03/2023] Open
Abstract
Previous studies suggested that CTLA4 polymorphism (rs5742909) is associated with susceptibility to cervical cancer. In the present study, we performed a meta-analysis to systematically summarize the possible association between rs5742909 and the risk for cervical cancer. We conducted a search of case–control studies on the associations of rs5742909 with susceptibility to cervical cancer in PubMed, EMBASE, ISI Web of Science, Cochrane Central Register of Controlled Trials, Wanfang database in China, and Chinese National Knowledge Infrastructure databases. We extracted the data from eligible studies for meta-analysis. The association of cervical cancer risk with rs5742909 was estimated by pooled odds ratios (ORs) and 95 % confidence intervals (95 % CIs). There were four studies on rs5742909 and cervical cancer in our meta-analysis. Our results suggested that both T allele frequency (OR = 1.63, 95 % CI 1.06-2.50; P = 0.03) and (TT + CT) genotype distribution (OR = 1.72, 95 % CI 1.07-2.77; P = 0.03) of the rs5742909 were associated with risk for cervical cancer. This meta-analysis suggests that rs5742909 is associated with the risk of cervical cancer. Well-designed studies with larger sample size and more ethnic groups are required to further validate the results.
Collapse
|
13
|
Guo Y, Guo F, Wei C, Qiu J, Liu Y, Fang Y, Gao J. CTLA4 gene polymorphisms influence the incidence of infection after renal transplantation in Chinese recipients. PLoS One 2013; 8:e70824. [PMID: 24015180 PMCID: PMC3754976 DOI: 10.1371/journal.pone.0070824] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2013] [Accepted: 06/22/2013] [Indexed: 01/26/2023] Open
Abstract
Background Immunosuppressive therapy is usually administered following renal transplantation to protect the graft from rejection. However, this often causes complications such as infections to occur. Single nucleotide polymorphisms (SNPs) within the CTLA4 gene, such as −1772T/C (rs733618), +49A/G (rs231775) and +6230 G/A (rs3087243), can affect graft rejection and the long-term clinical outcome of organ transplantation. The role of CTLA4 SNPs in T cell-mediated immunity in renal transplantation and association with infection after transplantation is unknown. Methods In this study, the risk of infection according to CTLA4 SNPs was investigated in 304 patients who received kidney graft transplants between 2008 and 2012. Results The frequency of the rs4553808 GG genotype was significantly higher in recipients with viral infection (14.89%) than in those without infections (3.50%) (Bonferroni-adjusted p = 0.005). A significant difference (p = 0.001) in patients with the rs4553808 GG genotype from those with the AA+AG genotypes was found in the viral cohort using the log-rank test. A significant association was found between the rs4553808 genotype and onset of viral infection in transplant recipients (p = 0.001). The frequencies of the CGTAG and CGCAG haplotypes were significantly higher in the viral infection group (9.6% and 5.3%) than in the non-viral infection group (3.8% and 1.4%) (p = 0.0149 and p = 0.0111). No association between any CTLA4 SNP and bacterial infection was found. Multivariate analyses revealed that one risk factor, the use of antibody induction therapy (p = 0.007), was associated with bacterial infection, and two risk factors, antibody use (p = 0.015) and recipient rs4553808 genotype (p = 0.001), were associated with viral infection. Conclusions The rs4553808 GG genotype may be a risk factor for viral infection in kidney transplantation. The CTLA4 haplotypes CGTAG and CGCAG were partially associated with the development of viral infection in Chinese kidney transplant recipients.
Collapse
Affiliation(s)
- Yifeng Guo
- Urological Center and Organ Transplantation Center, Shanghai First People's Hospital, Shanghai Jiao Tong University, Shanghai, China
- * E-mail: (YG); (FG)
| | - Fang Guo
- Lab of Tumor Targeted Therapy, Key Laboratory of Systems Biology, Chinese Academy of Sciences, Shanghai, China
- * E-mail: (YG); (FG)
| | - Chongyang Wei
- Lab of Tumor Targeted Therapy, Key Laboratory of Systems Biology, Chinese Academy of Sciences, Shanghai, China
| | - Jianxin Qiu
- Urological Center and Organ Transplantation Center, Shanghai First People's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Yong Liu
- Urological Center and Organ Transplantation Center, Shanghai First People's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Yu Fang
- Urological Center and Organ Transplantation Center, Shanghai First People's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Junwei Gao
- Department of Pharmacy, Shanghai First People's Hospital, Shanghai Jiao Tong University, Shanghai, China
| |
Collapse
|
14
|
Thude H, Schipler AD, Treszl A, Peine S, Koch M, Sterneck M, Nashan B. Lack of association between CTLA-4 and PDCD1 polymorphisms and acute rejection in German liver transplant recipients. Hum Immunol 2013; 74:1041-5. [DOI: 10.1016/j.humimm.2013.04.021] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2012] [Revised: 01/23/2013] [Accepted: 04/10/2013] [Indexed: 11/28/2022]
|
15
|
Jha R, Gaur P, Sharma SC, Das SN. Single nucleotide polymorphism in hMLH1 promoter and risk of tobacco-related oral carcinoma in high-risk Asian Indians. Gene 2013; 526:223-7. [PMID: 23727610 DOI: 10.1016/j.gene.2013.05.014] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2013] [Revised: 04/05/2013] [Accepted: 05/06/2013] [Indexed: 11/30/2022]
Abstract
hMLH1 is a member of mismatch repair genes (MMR) that plays a crucial role in correcting replication errors, cell cycle arrest, apoptosis and oxidative stress. We explored the risk associated with hMLH1 -93 A>G (rs 1800734) single nucleotide polymorphism (SNP) with the oral squamous cell carcinoma (OSCC) in Asian Indians. We genotyped 242 patients with tobacco-related OSCC and 205 healthy controls by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) technique. The frequency of AA genotype was found to be significantly (Pc<0.0006) lower in patients as compared to the controls (21.49% vs. 47.8%) while GG genotype showed significantly higher (Pc<0.0006) prevalence in patients as compared to the healthy controls (41.32% vs. 13.66%). In logistic regression analysis AG (adjusted OR=1.95, 95% CI=0.72-5.26) and GG genotype (adjusted OR=4.5, 95% CI=1.54-13.16, P=0.006) appeared susceptible when compared with the wild-type AA genotype. The allelic distribution showed that variant G allele is significantly higher (Pc<0.0004) in patients and associated with increased risk (adjusted OR=2.36, 95% CI=1.33-4.19, P=0.003) as compared to the wild-type A allele. Altogether, our results suggest that the hMLH1 -93 A>G polymorphism is associated with the higher risk of tobacco-related OSCC in Asian Indians and could be useful in screening population at a higher risk.
Collapse
Affiliation(s)
- Ritu Jha
- Department of Biotechnology, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India.
| | | | | | | |
Collapse
|
16
|
Ji R, Feng Y, Zhan WW. Updated analysis of studies on the cytotoxic T-lymphocyte-associated antigen-4 gene A49G polymorphism and Hashimoto's thyroiditis risk. GENETICS AND MOLECULAR RESEARCH 2013; 12:1421-30. [PMID: 23661465 DOI: 10.4238/2013.april.26.4] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Published data on the association between the cytotoxic T-lymphocyte-associated antigen-4 gene A49G polymorphism and the risk for Hashimoto's thyroiditis (HT) are inconclusive. A meta-analysis was performed to derive a more precise estimation. Published case-control studies in English or Chinese were identified. In total, 24 studies with 2295 cases and 4521 controls were investigated. A random-effect model was performed irrespective of between-study heterogeneity. Study quality was assessed in duplicate, and subgroup analyses were conducted by ethnicity or age. Overall, the 49G allele was associated with an increase in HT risk [odds ratio (OR) = 1.31; 95% confidence interval (95%CI) = 1.17-1.47; P < 0.00001]. In a subgroup analysis by ethnicity, comparison of allele 49G with 49A generated a 27% increased risk among East Asians (OR = 1.48; 95%CI = 1.24-1.76; P < 0.00001) and whites (OR = 1.27; 95%CI = 1.12-1.44; P = 0.0002). We also found an increased risk among adults (OR = 1.31; 95%CI = 1.17-1.47; P < 0.00001) but not among children (OR = 1.44; 95%CI = 0.75-2.79; P = 0.27), possibly owing to the small sample sizes in children. No publication biases were observed. This meta-analysis suggested that the cytotoxic T-lymphocyte-associated antigen-4 gene 49G allele was associated with an increased HT risk, especially in adults.
Collapse
Affiliation(s)
- R Ji
- Department of Ultrasonography, School of Medicine, Ruijin Hospital, Shanghai Jiaotong University, Shanghai, China
| | | | | |
Collapse
|
17
|
Chen Z, Fei M, Fu D, Zhang L, Ma Y, Wang Y, Zhang F, Xia Q, Wang X. Association between cytotoxic T lymphocyte antigen-4 polymorphism and type 1 diabetes: A meta-analysis. Gene 2013; 516:263-70. [DOI: 10.1016/j.gene.2012.12.030] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2012] [Revised: 11/06/2012] [Accepted: 12/04/2012] [Indexed: 01/17/2023]
|
18
|
Bharti V, Mohanti BK, Das SN. Functional genetic variants of CTLA-4 and risk of tobacco-related oral carcinoma in high-risk North Indian population. Hum Immunol 2013; 74:348-52. [PMID: 23246583 DOI: 10.1016/j.humimm.2012.12.008] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2012] [Revised: 11/23/2012] [Accepted: 12/04/2012] [Indexed: 01/29/2023]
Abstract
Single nucleotide polymorphisms (SNPs) of the CTLA-4 gene have been implicated in susceptibility to different cancer in different ethnic populations. We assessed the association of five SNPs [-1722C/T, -1661A/G and -318C/T in the promoter region49A/G in exon 1 and CT60A/G in the 3'untranslated region (UTR)] with tobacco-related oral squamous cell carcinoma (OSCC) in North Indian subjects. We genotyped 130 OSCC patients and 180 normal subjects by polymerase chain reaction- restriction fragment length polymorphism (PCR-RFLP) using BbvI, MseI, NcoI and BstEII restriction endonucleases. Among these SNPs, -1722CC, -1661AG and CT60AA genotypes were more prevalent in OSCC patients as compared to controls and in the logistic regression analysis with odd ratio (OR) 2.85, 95% CI (0.69-11.68); OR 2.48, 95% CI (1.29-4.78) and OR 3.0, 95% CI (1.43-6.28) respectively, these genotypes showed strong association with OSCC risk. With higher prevalence in controls 49GG genotype and G allele (OR 0.57, 95% CI 0.40-0.81) appeared to be protective. Moreover, TACAG, TACGA and TATAG appeared as susceptible while TACGG and CACGG appeared as protective haplotypes. These results suggest significant risk modifying effects of CTLA-4 -1722C/T, -1661A/G, -318T/C, CT60 A/G and 49A/G SNPs in tobacco-related OSCC in North Indian population.
Collapse
Affiliation(s)
- Vijaya Bharti
- Department of Biotechnology, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India.
| | | | | |
Collapse
|
19
|
Karimi MY, Kapoor V, Sharma SC, Das SN. Genetic polymorphisms in FAS (CD95) and FAS ligand (CD178) promoters and risk of tobacco-related oral carcinoma: gene-gene interactions in high-risk Indians. Cancer Invest 2012; 31:1-6. [PMID: 23153021 DOI: 10.3109/07357907.2012.743555] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
We assessed the association of functional single nucleotide polymorphisms (SNP) in FAS -1377, -670 and FAS ligand (FASL) -844 promoters in 139 oral cancer patients and 126 normal subjects by PCR-RFLP. In logistic regression analysis FAS -1377 GA genotype appeared to marginally increase the risk while FASL -844 TC genotype appeared as low risk factor. The combined genotypes FAS -1377 GA or AA and FASL -844 TT (p <0.03), and FAS -670 AG or GG and FASL -844 TT (p <0.007) appeared to double the risk. FAS and FASL gene-gene and gene-environment interactions seems to modulate susceptibility/resistance to tobacco-related oral cancer in Indians.
Collapse
Affiliation(s)
- Mohammad Yahya Karimi
- Department of Biotechnology, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, India
| | | | | | | |
Collapse
|
20
|
Si X, Zhang X, Luo Y, Tang W. Association between the CTLA-4 +49A/G polymorphism and type 1 diabetes: a meta-analysis. Genet Test Mol Biomarkers 2012; 16:1336-42. [PMID: 23009570 DOI: 10.1089/gtmb.2012.0169] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND +49A/G polymorphism of the cytotoxic T-lymphocyte-associated antigen-4 gene (CTLA-4) has been associated with type 1 diabetes (T1D). However, results were inconsistent. The aim of this study was to quantitatively summarize the evidence for CTLA-4 +49A/G polymorphism and T1D. METHODS Electronic search of PubMed was conducted to select studies. Case-control studies containing available genotype frequencies of CTLA-4 +49 were chosen, and the odds ratio (OR) with 95% confidence interval (CI) was used to assess the strength of this association. RESULTS 49 case-control studies, including 8976 cases and 11012 controls, were identified. 8 studies were eliminated from the total 49 studies because of p<0.05 (p value for Hardy-Weinberg equilibrium in the control group) in these studies, which induce significant publication bias. The overall results suggested that the variant genotypes were highly associated (p<0.01) with T1D risk in all genetic models (additive model: OR 1.345, 95% CI 1.249-1.448, p<0.001; recessive model: OR 1.530, 95% CI 1.370-1.708, p<0.001; dominant model: OR 1.409, 95% CI 1.263-1.572 p<0.001). Similarly, in subgroup analyses for ethnicity (Caucasian, Asian), the results were positive. CONCLUSION This meta-analysis suggests that the CTLA-4 +49A/G polymorphism is highly associated (p<0.01) with increased risk of T1D, especially in Caucasians and Asians. To validate this association, further studies with more participants worldwide are needed to examine associations between this polymorphism and T1D. Otherwise, we found that the studies of Africans are rare. More studies in Africans are needed especially.
Collapse
Affiliation(s)
- Xiaoyu Si
- Laboratory of Molecular Genetics of Aging and Tumor, Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, China
| | | | | | | |
Collapse
|
21
|
Tang ST, Tang HQ, Zhang Q, Wang CJ, Wang YM, Peng WJ. Association of cytotoxic T-lymphocyte associated antigen 4 gene polymorphism with type 1 diabetes mellitus: a meta-analysis. Gene 2012; 508:165-87. [PMID: 22964358 DOI: 10.1016/j.gene.2012.07.044] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2012] [Revised: 06/19/2012] [Accepted: 07/30/2012] [Indexed: 01/24/2023]
Abstract
To evaluate the association between costimulatory molecule cytotoxic T-lymphocyte-associated antigen-4 (CTLA-4) gene polymorphism and type 1 diabetes mellitus(T1DM), sixty-three published studies before December, 2011 were included. Meta-analysis was performed for each genotype in a random/fixed effect model. The combined odds ratio (OR) with 95% confidence interval (95%CI) was calculated to estimate the strength of the association. Overall, significant correlation was noted between CTLA-4 gene polymorphism (i.e. +49A/G, CT60A/G in a per-allele model) and the risk of T1DM (for +49A/G: OR=1.47, 95%CI=1.36-1.60, P<0.001; for CT60A/G: OR=1.31, 95%CI=1.18-1.45, P<0.001). However, no significant association was noted between C(-318)T polymorphism and T1DM. In the subgroup analysis, for +49A/G and CT60A/G, the statistically significant associations were also demonstrated in diverse racial descents (Caucasian and Asian) and age of onset (<20 years and >20 years). In conclusion, our results suggest that CTLA-4 polymorphism contributes to the susceptibility of T1DM.
Collapse
Affiliation(s)
- Song-tao Tang
- Department of Endocrinology, The First Affiliated Hospital of Anhui Medical University, 218 Jixi Road, Hefei230022, China
| | | | | | | | | | | |
Collapse
|
22
|
Jagasia M, Clark WB, Brown-Gentry KD, Crawford DC, Fan KH, Chen H, Kassim A, Greer JP, Engelhardt BG, Savani BN. Genetic variation in donor CTLA-4 regulatory region is a strong predictor of outcome after allogeneic hematopoietic cell transplantation for hematologic malignancies. Biol Blood Marrow Transplant 2011; 18:1069-75. [PMID: 22178694 DOI: 10.1016/j.bbmt.2011.12.518] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2011] [Accepted: 12/06/2011] [Indexed: 11/26/2022]
Abstract
Relapse remains a major cause of death after allogeneic hematopoietic cell transplantation (allo-HCT). Graft-versus-tumor effect is primarily mediated by donor T cells. Cytotoxic T lymphocyte antigen-4 (CTLA-4) is a critical inhibitor of T cell proliferation. Single nucleotide polymorphisms (SNPs) in CTLA-4 may affect immune responses. We hypothesized that CTLA-4 SNPs will be associated with disease control after allo-HCT. One hundred sixty-four adult patients with the availability of pretransplantation recipient and donor DNA samples were included in this analysis. Ten tagSNPs of the CTLA-4 gene were identified. Donor CTLA-4 SNP rs4553808 was associated with decreased relapse-free survival (RFS) (P = .019) and overall survival (OS) (P = .033). In multivariable analysis of an additive genetic model, genotype of CTLA-4 SNP rs4553808 was an independent risk factor for inferior RFS (hazard ratio [HR] = 1.73, 95% confidence interval [CI] 1.10-2.71, P = .017) and OS (HR = 1.84, 95% CI 1.13-3.0, P = .015). CTLA-4 SNPs can be used to identify high-risk patient subsets that may benefit from preemptive immunomodulation to decrease relapse rates and improve survival.
Collapse
Affiliation(s)
- Madan Jagasia
- Hematology and Stem Cell Transplantation Section, Division of Hematology/Oncology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
23
|
Gaur P, Mittal M, Mohanti BK, Das SN. Functional genetic variants of TGF-β1 and risk of tobacco-related oral carcinoma in high-risk Asian Indians. Oral Oncol 2011; 47:1117-21. [PMID: 21865076 DOI: 10.1016/j.oraloncology.2011.07.033] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2011] [Revised: 07/14/2011] [Accepted: 07/29/2011] [Indexed: 11/24/2022]
Abstract
Transforming growth factor (TGF)-β1, the most abundant isoform of TGF-β have been implicated in various stages of carcinogenesis such as epithelial to mesenchymal transition, enhanced expression of metalloproteases, down-regulation of cellular adhesion molecule, increased tumor motility and angiogenesis as well as local and systemic immunosuppression leading to a more aggressive and metastatic behavior. We assessed the association of TGF-β1 functional genetic polymorphisms at codon 10 (869 T>C) and 25 (915 G>C) of exon 1 in 140 patients with tobacco-related oral squamous cell carcinoma (OSCC) and 120 normal subjects by PCR-RFLP. The frequency of 869 CC genotype and C allele were significantly higher in patients as compared to controls (P(c), 0.024 and 0.0004, respectively) while no significant difference was observed in the frequency of 915 CC genotype and C allele. In logistic regression analysis CC genotype (OR, 3.87; 95% CI, 1.78-8.41) and C allele (OR, 2.20; 95% CI 1.51-3.20) appeared as susceptible while TT genotype and T allele as protective. In addition C(869)-C(915) haplotype with OR of 2.48 at 95% CI, 1.51-4.06 significantly (P=0.0003) increased the risk of tobacco-related OSCC in Asian Indians.
Collapse
Affiliation(s)
- Poonam Gaur
- Department of Biotechnology, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India.
| | | | | | | |
Collapse
|
24
|
Gaur P, Mittal M, Mohanti B, Das S. Functional variants of IL4 and IL6 genes and risk of tobacco-related oral carcinoma in high-risk Asian Indians. Oral Dis 2011; 17:720-6. [PMID: 21771210 DOI: 10.1111/j.1601-0825.2011.01831.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND Tobacco-related oral squamous cell carcinoma (OSCC) is one of the most common cancers involving Indian males. We assessed the association of IL4 promoter -589 T>C, -33 T>C, and IL6-174 G>C functional genetic polymorphisms with tobacco-related OSCC in Asian Indians. PATIENTS AND METHODS The IL4 and IL6 promoter polymorphisms were assessed in 140 patients with OSCC and 120 normal subjects by PCR-RFLP technique, and significance of the data was determined using chi-square test. RESULTS The frequency of TC, CC genotype, and C allele at IL4 promoter sites -589 and -33 were higher in patients when compared with controls. Consequently, TC/CC genotypes and C allele at both sites appeared as susceptible. However, IL6-174 G>C single-nucleotide polymorphisms (SNP) appeared to be protective in patients with OSCC. Of eight haplotypes, five were associated with two- to seven-fold increased risk of tobacco-related OSCC. These SNPs further showed heterogeneity among different ethnic population, but their distribution in Asian Indians stand closer to other Asian populations. CONCLUSIONS In this study, IL4-589 CC, -33 CC genotype, and *C allele at both sites appeared to be susceptible, while IL6-174 CC genotype and *C allele appeared to be protective in patients with OSCC; hence, these SNPs may be a potential prognostic markers for tobacco-related OSCC in Asian Indians.
Collapse
Affiliation(s)
- P Gaur
- Departments of Biotechnology Radiation Oncology, BRA-IRCH, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, India
| | | | | | | |
Collapse
|
25
|
Mittal M, Kapoor V, Mohanti BK, Das SN. Functional variants of COX-2 and risk of tobacco-related oral squamous cell carcinoma in high-risk Asian Indians. Oral Oncol 2010; 46:622-6. [DOI: 10.1016/j.oraloncology.2010.06.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2010] [Revised: 06/03/2010] [Accepted: 06/05/2010] [Indexed: 10/19/2022]
|
26
|
Rahimifar S, Erfani N, Sarraf Z, Ghaderi A. ctla-4 gene variations may influence cervical cancer susceptibility. Gynecol Oncol 2010; 119:136-9. [PMID: 20615526 DOI: 10.1016/j.ygyno.2010.06.006] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2010] [Revised: 05/30/2010] [Accepted: 06/05/2010] [Indexed: 12/25/2022]
Abstract
BACKGROUND CTLA-4 is the key player of the immune tolerance. Particular genotypes of ctla-4 have been reported to be associated with various diseases. OBJECTIVE We aimed to evaluate the role of four single nucleotide polymorphisms (SNPs) of ctla-4 gene in cervical cancer. METHODS 55 patients and 110 healthy controls were genotyped for four polymorphic loci, three in promoter region; -1722(T/C), -1661(A/G), -318(C/T) and one in exon 1; +49(A/G) using PCR-ARMS and -RFLP methods. RESULTS At position -1661 the frequency of A/A homozygote and A allele were lower in patients than in controls. (P=0.01, P=0.035; respectively), while at position -318 the frequency of C/C homozygote and C allele were increased in patients (P=0.021, P=0.025; respectively). These significances, however, do not stand the Bonferroni correction suggesting that the effect of multiple comparisons should not be ignored. The haplotype analysis demonstrated 9 haplotypes, of which, 5 were observed in both groups with no significant different frequencies. The TGTA haplotype, however, was only observed in control group (9.54%, p=0.002) and the TGCG haplotype was only occurred in cervical cancer patients (6.48%, p=0.0003). The differences were still significant after Bonferroni correction. CONCLUSION As a conclusion TGTA haplotype as well as A allele at position -1661 might imply a protective role whereas TGCG haplotype as well as C allele at locus -318 might render susceptibility to cervical cancer. Investigation of ctla-4 gene variants in other ethnic populations will consolidate the findings of this study.
Collapse
Affiliation(s)
- Shahrzad Rahimifar
- Shiraz Institute for Cancer Research, Shiraz University of Medical Sciences, Shiraz, Iran
| | | | | | | |
Collapse
|
27
|
Association of single nucleotide polymorphisms in cytotoxic T-lymphocyte antigen 4 and susceptibility to autoimmune type 1 diabetes in Tunisians. CLINICAL AND VACCINE IMMUNOLOGY : CVI 2010; 17:1473-7. [PMID: 20610662 DOI: 10.1128/cvi.00099-10] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
In addition to HLA and insulin genes, the costimulatory molecule CTLA-4 gene is a confirmed type 1 diabetes (T1D) susceptibility gene. Previous studies investigated the association of CTLA-4 genetic variants with the risk of T1D, but with inconclusive findings. Here, we tested the contributions of common CTLA-4 gene variants to T1D susceptibility in Tunisian patients and control subjects. The study subjects comprised 228 T1D patients (47.8% females) and 193 unrelated healthy controls (45.6% females). Genotyping for CTLA-4 CT60A/G (rs3087243), +49A/G (rs231775), and -318C/T (rs5742909) was performed by PCR-restriction fragment length polymorphism (RFLP) analysis. The minor-allele frequencies (MAF) for the three CTLA-4 variants were significantly higher in T1D patients, and significantly higher frequencies of homozygous +49G/G and homozygous CT60G/G genotypes were seen in patients, which was confirmed by univariate regression analysis (taking the homozygous wild type as a reference). Of the eight possible three-locus CTLA-4 haplotypes (+49A/G, -318C/T, and CT60A/G) identified, multivariate regression analysis confirmed the positive association of ACG (odds ratio [OR], 1.93; 95% confidence interval [CI], 1.26 to 2.94), GCG (OR, 2.40; 95% CI, 1.11 to 5.21), and GTA (OR, 4.67; 95% CI, 1.52 to 14.39) haplotypes with T1D, after confounding variables were adjusted for. Our results indicate that CTLA-4 gene variants are associated with increased T1D susceptibility in Tunisian patients, further supporting a central role for altered T-cell costimulation in T1D pathogenesis.
Collapse
|
28
|
Korolija M, Renar IP, Hadzija M, Medvidović EP, Pavković P, Jokić M, Hadzija MP. Association of PTPN22 C1858T and CTLA-4 A49G polymorphisms with Type 1 Diabetes in Croatians. Diabetes Res Clin Pract 2009; 86:e54-7. [PMID: 19815302 DOI: 10.1016/j.diabres.2009.09.012] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2009] [Accepted: 09/10/2009] [Indexed: 11/26/2022]
Abstract
In this case-control study the association between the PTPN22 1858T and CTLA-4 49G gene variants and T1D in Croatian population was examined. We found that distribution of PTPN22 C1858T and CTLA-4 A49G genotypes between T1D patient (n=102) and control (n=193) groups differ significantly (p<0.0001 and p=0.012, respectively). Moreover, although the risk alleles of both SNPs are distributed more frequently in patients, the significant difference is observed only for PTPN22 1858T allele (p<0.0001). This is therefore the first evidence that analyzed gene variants contribute to T1D pathogenesis in Croatian population.
Collapse
Affiliation(s)
- Marina Korolija
- Ruder Bosković Institute, Division of Molecular Medicine, Zagreb, Croatia
| | | | | | | | | | | | | |
Collapse
|
29
|
Yousefipour G, Erfani N, Momtahan M, Moghaddasi H, Ghaderi A. CTLA4 exon 1 and promoter polymorphisms in patients with multiple sclerosis. Acta Neurol Scand 2009; 120:424-9. [PMID: 19737153 DOI: 10.1111/j.1600-0404.2009.01177.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
OBJECTIVE The polymorphisms of exon 1 (+49 A/G) and promoter regions (-1722 T/C, -1661 A/G and -318 C/T)of cytotoxic T lymphocyte antigen 4 (CTLA4) and also haplotypes constructed from mentioned loci were investigated amongst 153 Iranian patients with definite multiple sclerosis (MS) and 190 healthy controls. METHODS The polymorphisms were genotyped by PCR-restriction fragment length polymorphisms and PCR-amplification refractory mutation system. The 4-locus haplotypes were estimated by Arlequin software (University of Berne, Berne, Switzerland). RESULTS Preliminary results showed significant increase of +49 G allele and -1661 AG genotype, as well as TGCA haplotype among patients than controls (P < 0.036, P = 0.009 and P < 0.010, respectively). The distribution of -1722 T/C, -1661 A/G, -318 C/T and +49 A/G (TACA) haplotype, from the contrary, was observed to be significantly increased among controls (P < 0.001). CONCLUSIONS After Bonferroni correction, the results provide preliminary evidence that CTLA4 genetic variation at -1661 locus may render Iranian individuals to be more susceptible to MS, whereas harboring TACA haplotype might be protective.
Collapse
Affiliation(s)
- G Yousefipour
- Department of Neurology, Shiraz University of Medical Sciences, Shiraz, Iran
| | | | | | | | | |
Collapse
|
30
|
Suzuki J, Ricordi C, Chen Z. Immune tolerance induction by integrating innate and adaptive immune regulators. Cell Transplant 2009; 19:253-68. [PMID: 19919733 PMCID: PMC2884065 DOI: 10.3727/096368909x480314] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
A diversity of immune tolerance mechanisms have evolved to protect normal tissues from immune damage. Immune regulatory cells are critical contributors to peripheral tolerance. These regulatory cells, exemplified by the CD4(+)Foxp3(+) regulatory T (Treg) cells and a recently identified population named myeloid-derived suppressor cells (MDSCs), regulate immune responses and limiting immune-mediated pathology. In a chronic inflammatory setting, such as allograft-directed immunity, there may be a dynamic "cross-talk" between the innate and adaptive immunomodulatory mechanisms for an integrated control of immune damage. CTLA4-B7-based interaction between the two branches may function as a molecular "bridge" to facilitate such "cross-talk." Understanding the interplays among Treg cells, innate suppressors, and pathogenic effector T (Teff) cells will be critical in the future to assist in the development of therapeutic strategies to enhance and synergize physiological immunosuppressive elements in the innate and adaptive immune system. Successful development of localized strategies of regulatory cell therapies could circumvent the requirement for very high number of cells and decrease the risks associated with systemic immunosuppression. To realize the potential of innate and adaptive immune regulators for the still elusive goal of immune tolerance induction, adoptive cell therapies may also need to be coupled with agents enhancing endogenous tolerance mechanisms.
Collapse
Affiliation(s)
- Jun Suzuki
- Department of Microbiology and Immunology, University of Miami, Miami, FL, USA
| | - Camillo Ricordi
- Department of Microbiology and Immunology, University of Miami, Miami, FL, USA
- Diabetes Research Institute, University of Miami, Miami, FL, USA
- Department of Surgery, University of Miami, Miami, FL, USA
- Karolinska Institute, Stockholm, Sweden
| | - Zhibin Chen
- Department of Microbiology and Immunology, University of Miami, Miami, FL, USA
- Diabetes Research Institute, University of Miami, Miami, FL, USA
| |
Collapse
|
31
|
Park KS, Baek JA, Do JE, Bang D, Lee ES. CTLA4gene polymorphisms and soluble CTLA4 protein in Behcet’s disease. ACTA ACUST UNITED AC 2009; 74:222-7. [DOI: 10.1111/j.1399-0039.2009.01303.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
|
32
|
Baniasadi V, Das SN. No evidence for association of PTPN22 R620W functional variant C1858T with type 1 diabetes in Asian Indians. J Cell Mol Med 2008; 12:1061-2. [PMID: 18194462 PMCID: PMC4401145 DOI: 10.1111/j.1582-4934.2008.00222.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Affiliation(s)
- V Baniasadi
- *Correspondence to: Prof. Satya N DAS, Department of Biotechnology, All India Institute of Medical Sciences, Ansari Nagar, New Delhi-110029, India. E-mail:
| | - S N Das
- *Correspondence to: Prof. Satya N DAS, Department of Biotechnology, All India Institute of Medical Sciences, Ansari Nagar, New Delhi-110029, India. E-mail:
| |
Collapse
|
33
|
Jacobson EM, Tomer Y. The CD40, CTLA-4, thyroglobulin, TSH receptor, and PTPN22 gene quintet and its contribution to thyroid autoimmunity: back to the future. J Autoimmun 2007; 28:85-98. [PMID: 17369021 PMCID: PMC2043086 DOI: 10.1016/j.jaut.2007.02.006] [Citation(s) in RCA: 142] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Autoimmune thyroid diseases (AITD) are common autoimmune diseases, affecting up to 5% of the general population. Thyroid-directed autoimmunity is manifested in two classical autoimmune conditions, Hashimoto's thyroiditis, resulting in hypothyroidism and Graves' disease resulting in hyperthyroidism. Autoimmune thyroid diseases arise due to an interplay between environmental and genetic factors. In the past decade significant progress has been made in our understanding of the genetic contribution to the etiology of AITD. Indeed, several AITD susceptibility genes have been identified. Some of these susceptibility genes are specific to either Graves' disease or Hashimoto's thyroiditis, while others confer susceptibility to both conditions. Both immunoregulatory genes and thyroid specific genes contribute to the pathogenesis of AITD. The time is now ripe to examine the mechanistic basis for the contribution of genetic factors to the etiology of AITD. In this review, we will focus on the contribution of non-MHC II genes.
Collapse
MESH Headings
- Animals
- Antigens, CD/genetics
- Antigens, CD/immunology
- Antigens, CD/metabolism
- Antigens, Differentiation/genetics
- Antigens, Differentiation/immunology
- Antigens, Differentiation/metabolism
- CD40 Antigens/genetics
- CD40 Antigens/metabolism
- CTLA-4 Antigen
- Genetic Predisposition to Disease
- Graves Disease/etiology
- Graves Disease/genetics
- Graves Disease/immunology
- Hashimoto Disease/etiology
- Hashimoto Disease/genetics
- Hashimoto Disease/immunology
- Humans
- Polymorphism, Single Nucleotide
- Protein Tyrosine Phosphatase, Non-Receptor Type 22
- Protein Tyrosine Phosphatases/genetics
- Protein Tyrosine Phosphatases/metabolism
- Receptors, Thyrotropin/genetics
- Receptors, Thyrotropin/metabolism
- Thyroglobulin/genetics
- Thyroglobulin/metabolism
Collapse
Affiliation(s)
- Eric M Jacobson
- Division of Endocrinology, University of Cincinnati, The Vontz Center for Molecular Studies, 3125 Eden Avenue, Cincinnati, OH 45267, USA.
| | | |
Collapse
|
34
|
Das SN, Baniasadi V, Kapuria V. Association of ?308 TNF-? promoter polymorphism with type 1 diabetes in North Indians. Int J Immunogenet 2006; 33:411-6. [PMID: 17117950 DOI: 10.1111/j.1744-313x.2006.00632.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- S N Das
- Department of Biotechnology, All India Institute of Medical Sciences, New Delhi 110029, India.
| | | | | |
Collapse
|
35
|
Chen Z, Stockton J, Mathis D, Benoist C. Modeling CTLA4-linked autoimmunity with RNA interference in mice. Proc Natl Acad Sci U S A 2006; 103:16400-5. [PMID: 17060611 PMCID: PMC1637594 DOI: 10.1073/pnas.0607854103] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The CTLA4 gene is important for T lymphocyte-mediated immunoregulation and has been associated with several autoimmune diseases, in particular, type 1 diabetes. To model the impact of natural genetic variants of CTLA4, we constructed RNA interference (RNAi) "knockdown" mice through lentiviral transgenesis. Variegation of expression was observed in founders but proved surmountable because it reflected parental imprinting, with derepression by transmission from male lentigenics. Unlike the indiscriminate multiorgan autoimmune phenotype of the corresponding knockout mice, Ctla4 knockdown animals had a disease primarily focused on the pancreas, with rapid progression to diabetes. As with the human disease, the knockdown phenotype was tempered by genetic-modifier loci. RNAi should be more pertinent than gene ablation in modeling disease pathogenesis linked to a gene-dosage variation.
Collapse
Affiliation(s)
- Zhibin Chen
- Section on Immunology and Immunogenetics, Joslin Diabetes Center, and Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02215
| | - John Stockton
- Section on Immunology and Immunogenetics, Joslin Diabetes Center, and Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02215
| | - Diane Mathis
- Section on Immunology and Immunogenetics, Joslin Diabetes Center, and Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02215
- *To whom correspondence may be addressed at:
Section on Immunology and Immunogenetics, Joslin Diabetes Center, One Joslin Place, Boston, MA 02215. E-mail:
| | - Christophe Benoist
- Section on Immunology and Immunogenetics, Joslin Diabetes Center, and Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02215
- *To whom correspondence may be addressed at:
Section on Immunology and Immunogenetics, Joslin Diabetes Center, One Joslin Place, Boston, MA 02215. E-mail:
| |
Collapse
|
36
|
Li S, Salgar SK, Thanikachalam M, Murdock AD, Gammie JS, Demetris AJ, Zeevi A, Pham SM. Modeling CTLA4-linked autoimmunity with RNA interference in mice. Proc Natl Acad Sci U S A 2006; 136:238-46. [PMID: 17046021 DOI: 10.1016/j.jss.2006.05.032] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2006] [Revised: 05/02/2006] [Accepted: 05/25/2006] [Indexed: 11/27/2022] Open
Abstract
The CTLA4 gene is important for T lymphocyte-mediated immunoregulation and has been associated with several autoimmune diseases, in particular, type 1 diabetes. To model the impact of natural genetic variants of CTLA4, we constructed RNA interference (RNAi) "knockdown" mice through lentiviral transgenesis. Variegation of expression was observed in founders but proved surmountable because it reflected parental imprinting, with derepression by transmission from male lentigenics. Unlike the indiscriminate multiorgan autoimmune phenotype of the corresponding knockout mice, Ctla4 knockdown animals had a disease primarily focused on the pancreas, with rapid progression to diabetes. As with the human disease, the knockdown phenotype was tempered by genetic-modifier loci. RNAi should be more pertinent than gene ablation in modeling disease pathogenesis linked to a gene-dosage variation.
Collapse
Affiliation(s)
- Sen Li
- Division of Cardiothoracic Surgery, University of Miami School of Medicine, Miami, Florida 33156, USA
| | | | | | | | | | | | | | | |
Collapse
|