Variation in HLA class I antigen-processing genes and susceptibility to human papillomavirus type 16-associated cervical cancer. 2008

Alina Deshpande, and Cosette M Wheeler, and William C Hunt, and Cheri L Peyton, and P Scott White, and Yolanda E Valdez, and John P Nolan
Decision Applications Division, Los Alamos National Laboratory, Los Alamos, California, USA.

BACKGROUND Persistent infection with human papillomavirus type 16 (HPV16) is a primary etiological factor for the development of cervical cancer. Genes involved in antigen processing influence both the repertoire of antigens presented by HPV16-infected cells and the nature of HPV16-specific immune responses. Genetic variation in these genes may affect protein structure and function and, consequently, the ability of an individual to clear HPV infection. METHODS Thirty-five single-nucleotide polymorphisms (SNPs) in 5 genes (LMP2, TAP1, LMP7, TAP2, and Tapasin) were investigated for association with susceptibility to HPV16-associated cervical cancer. Sequencing of these genes resulted in the discovery of 15 previously unreported SNPs. Microsphere-array flow cytometry-based genotyping was conducted on 787 samples from Hispanic and non-Hispanic white women (241 randomly selected control subjects, 205 HPV16-positive control subjects, and 341 HPV16-positive case subjects with cervical cancer). RESULTS For 9 SNPs, 8 of which had not previously been reported in the context of cervical cancer, there were statistically significant differences between the genotype distribution in case subjects and that in control subjects. Haplotype analysis of 3 haplotype blocks revealed 3 haplotypes with significant differences in frequency in case-control comparisons. Both HPV16-specific and non-type-specific differences in genotype distribution were seen. CONCLUSIONS Genes involved in antigen processing for HLA class I presentation may contribute to susceptibility to cervical cancer.

UI MeSH Term Description Entries
D009097 Multienzyme Complexes Systems of enzymes which function sequentially by catalyzing consecutive reactions linked by common metabolic intermediates. They may involve simply a transfer of water molecules or hydrogen atoms and may be associated with large supramolecular structures such as MITOCHONDRIA or RIBOSOMES. Complexes, Multienzyme
D011487 Protein Conformation The characteristic 3-dimensional shape of a protein, including the secondary, supersecondary (motifs), tertiary (domains) and quaternary structure of the peptide chain. PROTEIN STRUCTURE, QUATERNARY describes the conformation assumed by multimeric proteins (aggregates of more than one polypeptide chain). Conformation, Protein,Conformations, Protein,Protein Conformations
D012016 Reference Values The range or frequency distribution of a measurement in a population (of organisms, organs or things) that has not been selected for the presence of disease or abnormality. Normal Range,Normal Values,Reference Ranges,Normal Ranges,Normal Value,Range, Normal,Range, Reference,Ranges, Normal,Ranges, Reference,Reference Range,Reference Value,Value, Normal,Value, Reference,Values, Normal,Values, Reference
D002583 Uterine Cervical Neoplasms Tumors or cancer of the UTERINE CERVIX. Cancer of Cervix,Cancer of the Cervix,Cancer of the Uterine Cervix,Cervical Cancer,Cervical Neoplasms,Cervix Cancer,Cervix Neoplasms,Neoplasms, Cervical,Neoplasms, Cervix,Uterine Cervical Cancer,Cancer, Cervical,Cancer, Cervix,Cancer, Uterine Cervical,Cervical Cancer, Uterine,Cervical Cancers,Cervical Neoplasm,Cervical Neoplasm, Uterine,Cervix Neoplasm,Neoplasm, Cervix,Neoplasm, Uterine Cervical,Uterine Cervical Cancers,Uterine Cervical Neoplasm
D003546 Cysteine Endopeptidases ENDOPEPTIDASES which have a cysteine involved in the catalytic process. This group of enzymes is inactivated by CYSTEINE PROTEINASE INHIBITORS such as CYSTATINS and SULFHYDRYL REAGENTS.
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000071181 ATP Binding Cassette Transporter, Subfamily B, Member 2 An ATP-binding cassette, sub-family B protein (ATP BINDING CASSETTE TRANSPORTER, SUBFAMILY B) that functions in the transport of ANTIGENS from the CYTOPLASM to the ENDOPLASMIC RETICULUM for association with HISTOCOMPATIBILITY ANTIGENS CLASS I peptides. It also acts as a molecular scaffold for the final stage of MHC class I PROTEIN FOLDING. ABCB2 Protein,ATP Binding Cassette Transporter, Sub-Family B, Member 2,ATP-Binding Cassette Sub-Family B Member 2,Antigen Peptide Transporter-1,Peptide Transporter PSF1,Peptide Transporter TAP1,RING4 Protein,Really Interesting New Gene 4 Protein,TAP-1 Protein,TAP1 Protein,Transporter 1, ATP-Binding Cassette, Sub-Family B (MDR-TAP),ATP Binding Cassette Sub Family B Member 2,Antigen Peptide Transporter 1,PSF1, Peptide Transporter,TAP 1 Protein,TAP1, Peptide Transporter
D000071450 ATP Binding Cassette Transporter, Subfamily B, Member 3 ATP-binding cassette, subfamily B, protein that functions in the transport of ANTIGENS from the CYTOPLASM to the ENDOPLASMIC RETICULUM for association with HISTOCOMPATIBILITY ANTIGENS CLASS I peptides. It functions as a heterodimer with ATP BINDING CASSETTE TRANSPORTER, SUBFAMILY B, MEMBER 2. ABCB3 Protein,ATP Binding Cassette Transporter, Sub-Family B, Member 3,ATP-Binding Cassette, Sub-Family B, Member 3,Antigen Peptide Transporter-2,Peptide Supply Factor 2,Peptide Transporter Tap2,Antigen Peptide Transporter 2,Tap2, Peptide Transporter
D014644 Genetic Variation Genotypic differences observed among individuals in a population. Genetic Diversity,Variation, Genetic,Diversity, Genetic,Diversities, Genetic,Genetic Diversities,Genetic Variations,Variations, Genetic

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