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Wiśniewski A, Wilczyńska K, Wagner M, Jasek M, Niepiekło-Miniewska W, Nowak I, Matusiak Ł, Szczerkowska‑Dobosz A, Kuśnierczyk P. Is the TAP2 single nucleotide polymorphism rs241447 truly associated with psoriasis in Poles? Hum Immunol 2020; 81:85-90. [DOI: 10.1016/j.humimm.2020.01.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 12/30/2019] [Accepted: 01/14/2020] [Indexed: 10/25/2022]
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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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Cao B, Tian X, Li Y, Jiang P, Ning T, Xing H, Zhao Y, Zhang C, Shi X, Chen D, Shen Y, Ke Y. LMP7/TAP2 gene polymorphisms and HPV infection in esophageal carcinoma patients from a high incidence area in China. Carcinogenesis 2005; 26:1280-4. [PMID: 15774487 DOI: 10.1093/carcin/bgi071] [Citation(s) in RCA: 73] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Esophageal carcinoma is characterized by a widely ranged incidence variation among the different geographic regions. Anyang is a county in Henan Province of North China with the highest prevalence of esophageal carcinoma. Human papillomavirus (HPV) infection has been linked to the etiology of esophageal cancer in this area. In this study, we investigated correlations of the polymorphisms at low molecular weight polypeptide (LMP) and transporters with antigen processing (TAP) genes, with the risk of esophageal carcinoma. DNA extracted from either tumor specimens or esophageal epithelial cells was used to test HPV infection. Peripheral blood lymphocyte DNA was used for LMP/TAP genotyping. Polymerase chain reaction was performed to analyze HPV infection and LMP/TAP gene polymorphisms. The combined effect of LMP/TAP gene polymorphisms and HPV infection on esophageal carcinoma was analyzed by using unconditional logistic regression models. The TAP2 codons 379 isoleucine carriers and LMP7 codons 145 lysine carriers were found to be more susceptible to esophageal carcinoma (OR = 2.74, 95% CI = 1.15-6.49, P = 0.023 for TAP2; OR = 2.19, 95% CI = 1.09-4.37, P = 0.027 for LMP7). Patients carrying homozygous LMP7/TAP2 haplotype C, which contained the glutamine at LMP7 codons 145 and the isoleucine at TAP2 codons 379, were more prone to develop esophageal carcinoma (OR = 2.96, 95% CI = 1.13-7.81, P = 0.027). An additive effect on the risk of esophageal carcinoma development was found among individuals carrying LMP7/TAP2 haplotype C and infected by HPV (OR = 4.33, 95% CI = 2.53-7.42, P < 0.0001). LMP7/TAP2 haplotype C may act as the risk factor in esophageal carcinoma development and it may influence the tumorigenesis in HPV infected individuals.
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Affiliation(s)
- Bangwei Cao
- Beijing Institute for Cancer Research, School of Oncology, Peking University, Beijing 100034, China
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Abstract
The transporter associated with antigen processing (TAP) is a member of the ATP-binding cassette transporter family that specializes in delivering cytosolic peptides to class I molecules in the endoplasmic reticulum. The TAP is a major target of genetic alteration in tumours and disruption by viral inhibitors. In some species, TAP genes have co-evolved with MHC class I molecules to deliver peptides that are customised for particular alleles. In humans, MHC class I polymorphism determines the level of tapasin-mediated association with TAP and subsequent peptide optimisation within the peptide-loading complex (PLC). MHC class I molecules that still load peptides without complexing to the TAP might be more resistant to viral interference of the PLC and less sensitive to competition for TAP by other class I allotypes.
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Affiliation(s)
- James McCluskey
- Department of Microbiology and Immunology, The University of Melbourne, Victoria, Australia.
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Jun TY, Lee KU, Pae CU, Chae JH, Bahk WM, Kim KS, Lew TY. No association of TAP2 polymorphisms in Korean patients with schizophrenia. Psychiatr Genet 2004; 14:173-6. [PMID: 15318034 DOI: 10.1097/00041444-200409000-00011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVES Polymorphisms of transporters associated with antigen-processing (TAP) genes might influence the susceptibility to schizophrenia by altering the antigen-processing pathway. The aim of this study was to verify the relationship between schizophrenia and the polymorphisms of TAP2 genes. METHOD Two hundred and fifty-seven Korean patients diagnosed with schizophrenia according to DSM-IV and 184 normal controls participated in this study. TAP2 polymorphic residues at positions 379, 565 and 665 were typed using amplification refractory mutation system-polymerase chain reaction single-strand conformation polymorphism. RESULTS Distribution of the alleles and genotypes in patients with schizophrenia was not significantly different from those of controls. CONCLUSIONS This study did not show the association of the TAP2 gene with schizophrenia in the Korean population.
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Affiliation(s)
- Tae-Youn Jun
- Department of Psychiatry, College of Medicine, The Catholic University of Korea, Seoul, Korea
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