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The influence of TAP1 and TAP2 gene polymorphisms on TAP function and its inhibition by viral immune evasion proteins. Mol Immunol 2018; 101:55-64. [DOI: 10.1016/j.molimm.2018.05.025] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Revised: 05/23/2018] [Accepted: 05/28/2018] [Indexed: 01/03/2023]
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Huang M, Zhang W, Guo J, Wei X, Phiwpan K, Zhang J, Zhou X. Improved Transgenic Mouse Model for Studying HLA Class I Antigen Presentation. Sci Rep 2016; 6:33612. [PMID: 27634283 PMCID: PMC5025652 DOI: 10.1038/srep33612] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Accepted: 08/30/2016] [Indexed: 11/16/2022] Open
Abstract
HLA class I (HLA-I) transgenic mice have proven to be useful models for studying human MHC-related immune responses over the last two decades. However, differences in the processing and presentation machinery between humans and mice may have profound effects on HLA-I restricted antigen presentation. In this study, we generated a novel human TAP-LMP (hTAP-LMP) gene cluster transgenic mouse model carrying an intact human TAP complex and two human immunoproteasome LMP subunits, PSMB8/PSMB9. By crossing the hTAP-LMP strain with different HLA-I transgenic mice, we found that the expression levels of human HLA-I molecules, especially the A3 supertype members (e.g., A11 and A33), were remarkably enhanced in corresponding HLA-I/hTAP-LMP transgenic mice. Moreover, we found that humanized processing and presentation machinery increased antigen presentation of HLA-A11-restricted epitopes and promoted the rapid reduction of hepatitis B virus (HBV) infection in HLA-A11/hTAP-LMP mice. Together, our study highlights that HLA-I/hTAP-LMP mice are an improved model for studying antigen presentation of HLA-I molecules and their related CTL responses.
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Affiliation(s)
- Man Huang
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences (CAS), Beijing, 100101, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Wei Zhang
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences (CAS), Beijing, 100101, China
| | - Jie Guo
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences (CAS), Beijing, 100101, China
| | - Xundong Wei
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences (CAS), Beijing, 100101, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Krung Phiwpan
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences (CAS), Beijing, 100101, China.,University of Phayao 19 Moo 2 Maeka, Muang Phayao district, Phayao, 56000, Thailand
| | - Jianhua Zhang
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences (CAS), Beijing, 100101, China
| | - Xuyu Zhou
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences (CAS), Beijing, 100101, China.,Savaid Medical School, University of Chinese Academy of Sciences, Beijing 101408, China
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Thu KS, Sato N, Ikeda S, Naka-Mieno M, Arai T, Mori S, Sawabe M, Muramatsu M, Tanaka M. Association of polymorphisms of the transporter associated with antigen processing (TAP2) gene with pulmonary tuberculosis in an elderly Japanese population. APMIS 2016; 124:675-80. [PMID: 27325005 DOI: 10.1111/apm.12562] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Accepted: 04/30/2016] [Indexed: 12/31/2022]
Abstract
The transporter associated with antigen processing 2 (TAP2) gene is involved in the immunological response to tuberculosis (TB) infection. Variations in the TAP2 gene have been associated with TB infection in small population studies in India, Columbia, and Korea. We investigated the association of TAP2 polymorphisms with TB susceptibility in an elderly Japanese population. We analyzed samples from consecutive autopsy cases (n = 1850) registered in the Japanese Geriatric SNP Research database. TB was diagnosed pathologically by TB granuloma on autopsy samples. There were 289 cases and 1529 controls. Twenty-four single nucleotide variations (SNVs), including four missense variations in the TAP2 region, were genotyped using the Illumina Infinium Human Exome BeadChip array. Of the 24 SNVs in the TAP2 gene, rs4148871, rs4148876 (R651C), and rs2857103 showed statistically significant associations with TB susceptibility, and rs4148871 and rs2857103 also showed significant genotypic associations in a dominant allele model adjusted for age, sex, and smoking. Haplotype analysis showed that TAP2 allele *0103 conferred an increased TB risk (OR = 1.48, p = 0.0008), while the TAP2 *0201 allele was protective against TB (OR = 0.73, p = 0.0007). Our results suggest that TAP2 polymorphisms influence TB susceptibility in a Japanese population.
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Affiliation(s)
- Kaung Si Thu
- Department of Molecular Epidemiology, Medical Research Institute, Tokyo Medical and Dental University, Tokyo, Japan
| | - Noriko Sato
- Department of Molecular Epidemiology, Medical Research Institute, Tokyo Medical and Dental University, Tokyo, Japan
| | - Shinobu Ikeda
- Department of Molecular Epidemiology, Medical Research Institute, Tokyo Medical and Dental University, Tokyo, Japan
| | - Makiko Naka-Mieno
- Department of Medical Informatics, Center of Information, Jichii Medical University, Tochigi, Japan
| | - Tomio Arai
- Department of Pathology, Tokyo Metropolitan Geriatric Hospital, Tokyo, Japan.,Research Team for Geriatric Pathology, Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan
| | - Seijiro Mori
- Center for Promotion of Clinical Investigation, Tokyo Metropolitan Geriatric Hospital, Tokyo, Japan
| | - Motoji Sawabe
- Department of Moleculo-genetic Sciences, Division of Biomedical Laboratory Sciences, Molecular Pathophysiology, Graduate School of Health Care Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Masaaki Muramatsu
- Department of Molecular Epidemiology, Medical Research Institute, Tokyo Medical and Dental University, Tokyo, Japan
| | - Masashi Tanaka
- Department of Genomics for Longevity and Health, Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan
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Genetic variation in the LMP/TAP gene and outcomes of hepatitis B virus infection in the Chinese population. Epidemiol Infect 2010; 139:674-82. [DOI: 10.1017/s0950268810001299] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
SUMMARYGenetic polymorphisms of the LMP/TAP gene coded by the HLA-II region may be associated with outcomes of HBV infection. We conducted a case-control study to test the hypothesis, including a persistent group of 155 patients with chronic hepatitis B and 36 healthy carriers, a recovered group of 165 individuals spontaneously recovered from HBV infection, and an uninfected group of 278 healthy normal controls. Genotypes of eight polymorphisms of the LMP/TAP gene were analysed by PCR–RFLP. A logistic regression model was used to analyse statistical differences in polymorphisms or haplotypes in different groups. Of the eight polymorphisms, two (TAP1 codon 637 and LMP7 codon 145) were observed to have statistically significant association with outcomes of HBV infection (P<0·05). The two-locus haplotype constructed with two such polymorphisms was analysed. The frequencies of haplotypes B (Asp-Lys), C (Gly-Gln), and D (Gly-Lys) were found to be increased significantly in the persistent group, compared to healthy controls (OR 2·26, 95% CI 1·62–3·15, P<0·001; OR 2·37, 95% CI 1·69–3·32, P<0·001; OR 4·38, 95% CI 1·78–10·77, P=0·001, respectively). The prevalence of haplotypes B (Asp-Lys), C (Gly-Gln), and D (Gly-Lys) were also significantly higher in the persistent infectious group than in the recovered group (OR 2·68, 95% CI 1·81–3·98, P<0·001; OR 2·40, 95% CI 1·62–3·55, P<0·001; OR 3·03, 95% CI 1·22–7·55, P=0·017, respectively). These findings indicated that genetic polymorphisms of the LMP/TAP gene might be an important factor in determining the outcome of HBV infection.
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Deshpande A, Wheeler C, Hunt W, Peyton C, White P, Valdez Y, Nolan J. Variation in HLA Class I Antigen‐Processing Genes and Susceptibility to Human Papillomavirus Type 16–Associated Cervical Cancer. J Infect Dis 2008; 197:371-81. [DOI: 10.1086/524300] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Xu C, Qi S, Gao L, Cui H, Liu M, Yang H, Li K, Cao B. Genetic polymorphisms of LMP/TAP gene and hepatitis B virus infection risk in the Chinese population. J Clin Immunol 2007; 27:534-41. [PMID: 17525827 DOI: 10.1007/s10875-007-9095-x] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2007] [Accepted: 03/22/2007] [Indexed: 01/28/2023]
Abstract
Despite the availability of effective vaccines, hepatitis B virus (HBV) infection is still commonly seen worldwide. Several reports show that the human major histocompatibility complex (MHC) systems were involved in the elimination of HBV via the restrictive antigen-processing pathway. We investigate whether LMP/TAP gene polymorphisms coded by MHC-II region were associated with HBV infection. A total of seven polymorphisms of LMP/TAP gene were identified by polymerase chain reaction (PCR) restriction fragment length polymorphism (RFLP) assays. Three hundred fifty-six patients and 326 unrelated healthy volunteers were included in the case-control study. Of the seven polymorphisms, three of which (LMP7 codons 145, TAP1 codons 637, and TAP2 codons 651) were observed to have statistically significant association with HBV infection (P < 0.05). We analyzed the three-locus haplotype constructed with three such polymorphisms and found that the frequency of haplotypes D and E increased significantly in patients, in comparison with that in controls (OR = 3.57, 95% CI: 2.09-6.12, P < 0.001; OR = 2.74, 95% CI: 1.35-5.56, P = 0.005, respectively). The results imply that LMP7-145, TAP1-637, and TAP2-651 sites were associated with the risk of HBV infection. Haplotypes D and E might be involved in the development of HBV infection. These data suggest a potential role of LMP/TAP gene as a candidate gene for susceptibility to HBV infection.
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Affiliation(s)
- Changqing Xu
- Department of Gastroenterology, Shandong Provincial Qianfoshan Hospital, Jinan, Shandong Province, China
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Gomez LM, Camargo JF, Castiblanco J, Ruiz-Narváez EA, Cadena J, Anaya JM. Analysis of IL1B, TAP1, TAP2 and IKBL polymorphisms on susceptibility to tuberculosis. ACTA ACUST UNITED AC 2006; 67:290-6. [PMID: 16634865 DOI: 10.1111/j.1399-0039.2006.00566.x] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Genetic determinants of human susceptibility to tuberculosis (TB) have not been completely elucidated. Interleukin-1 beta (IL-1beta) and the inhibitor of kB-like (IkBL) are important molecules that participate in the inflammatory response required for the immunological control of a broad spectrum of infectious agents. The transporter associated with antigen processing (TAP) is involved in the antigen processing via major histocompatibility complex class I molecules and in turn might regulate the T-cell response against Mycobacterium tuberculosis. To better characterize the host genetic factors determining the susceptibility to TB, we evaluated the influence of functional polymorphisms in IL1B, TAP and IKBL genes on the risk of developing pulmonary TB in a Northwestern Colombian population, an endemic area of M. tuberculosis infection. A total of 122 TB patients and 166 healthy controls (N = 166) negative for human immunodeficiency virus infection were examined for IL1B-511 and +3,953, TAP1 and TAP2 and IKBL+738 polymorphisms. Univariate analysis disclosed significant differences between patients and controls for IL1B+3,953 polymorphism. After unconditional logistic regression analysis, a strong protection conferred by IL1B+3,953 T-allele-carrying genotypes was observed. A trend between TAP2*0201 allele and disease was observed. Association between IL1B-511, TAP1 or IKBL polymorphisms and TB disease was not found. These results indicate that a functional polymorphism in the IL1B gene influences the susceptibility to TB and suggest a role for IL-1beta in the pathogenesis of mycobacterial infection.
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Affiliation(s)
- L M Gomez
- Cellular Biology and Immunogenetics Unit, Corporación para Investigaciones Biológicas, CIB, Medellin, Colombia
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Lajoie J, Zijenah LS, Faucher MC, Ward BJ, Roger M. New transporter associated with antigen processing (TAP-2) polymorphisms in the Shona people of Zimbabwe. Hum Immunol 2003; 64:733-40. [PMID: 12826376 DOI: 10.1016/s0198-8859(03)00079-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Most studies, to date, on transporter associated with antigen processing (TAP2) polymorphism have been conducted in Caucasians or Asians from industrialized countries. Because of the essential role of this molecule in antigen processing, the implication that polymorphism could be a major factor in human disease and the possible genetic variation at this locus among ethnically diverse populations, we undertook a study to analyze the full extent of TAP2 polymorphism in an indigenous Zimbabwean population (Shona ethnic group). Using single-stranded conformation polymorphism and DNA direct sequencing procedures, we detected the presence of 17 nucleotide sequence variations in the entire coding region of TAP2. Of these variants, 11 are nonconservative substitutions with respect to amino acid composition and are located in a region of the protein that could modulate its function. Six new polymorphic sites were identified in exon 1 (codons 15 Val-->Ala, 53 Leu-->Val), exon 3 (codon 220 Arg-->Arg), exon 4 (codons 257 Thr-->Ile, 313 Arg-->His), and exon10 (codon 609 Ala-->Val). Significant differences were seen in the distribution of the known 374Thr, 565Thr and 651Cys variants between African and non-African populations. These differences may reflect evolutionary pressures generated by environmental factors, such as prevalent pathogens in these geographically distinct regions. Further studies are needed to elucidate the net impact of TAP2 polymorphism on the protein's function and it's role in disease pathogenesis.
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Affiliation(s)
- Julie Lajoie
- Laboratoire d'Immunogénétique, Centre de Recherche du Centre Hospitalier de l'Université de Montréal, Québec, Canada
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Anaya JM, Correa PA, Mantilla RD, Arcos-Burgos M. TAP, HLA-DQB1, and HLA-DRB1 polymorphism in Colombian patients with primary Sjögren's syndrome. Semin Arthritis Rheum 2002; 31:396-405. [PMID: 12077712 DOI: 10.1053/sarh.2002.32557] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
OBJECTIVE Although primary Sjögren's syndrome (pSS) has a worldwide distribution, little data is available on pSS immunogenetics in non-white populations. Thus, we investigated the influence of transporters associated with antigen processing (TAP), human leukocyte antigen (HLA)-DQB1, and HLA-DRB1 gene polymorphism in mestizo Colombian patients with pSS. METHODS In this cross-sectional and controlled study, all patients met the European criteria for classification of pSS. TAP and HLA typing was performed by polymerase chain reaction techniques. Genetic data analysis was performed to detect deviations from the expected Hardy-Weinberg (H-W) proportions and to determine the presence of population stratification or subdivision and the existence of linkage disequilibrium between pairs of loci. RESULTS Seventy-three Colombian patients with pSS (95% women) and 76 healthy controls were studied. Although significant associations were not observed between TAP or HLA polymorphism and disease, strong linkage disequilibrium among the loci TAP2 and DQB1 was found in patients. Deviations from the H-W expected value were found in the DQB1 locus of patients (P =.02). HLA-DRB1*0301-DQB1*0201 haplotype was associated with more severe histopathologic disease (odds ratio [OR], 15.5; 95% confidence interval [CI], 1.9-129; P =.001) and the presence of anti-Ro (OR, 3.8; 95% CI, 1-15; P =.04) and anti-La antibodies (OR, 4.3; 95% CI, 1.3-14; P =.01). CONCLUSION The data show genetic evidence suggesting that, in Colombians, a region immersed or in the vicinity in the HLA class II system is strongly associated with a predisposition to acquire pSS, which is probably located between the TAP2 and HLA-DQB1 locus. Our results confirm that the HLA-DRB1*0301-DQB1*0201 haplotype participates in the pathogenesis of pSS.
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Affiliation(s)
- Juan-Manuel Anaya
- Rheumatology Unit, Corporación para Investigaciones Biológicas (CIB), Medellín, Colombia.
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