Killer cell immunoglobulin-like receptor (KIR) genes and their HLA ligands in a Brazilian population
| Autor: | Daniela Maira Cardozo, Amanda Vansan Marangon, Fernando Guimarães, Silvia Marques, Sofia Lieber, Márcia Delamain, Francisco Aranha, Jeane Eliete Laguila Visentainer, Cármino Antonio de Souza |
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| Jazyk: | angličtina |
| Rok vydání: | 2023 |
| Předmět: | |
| Zdroj: | Innate Immunity, Vol 29 (2023) |
| Druh dokumentu: | article |
| ISSN: | 1753-4259 1753-4267 17534259 |
| DOI: | 10.1177/17534259231178592 |
| Popis: | Killer cell immunoglobulin-like receptors (KIR) exhibit extensive diversity, giving rise to different KIR profiles in populations worldwide. This study aimed to investigate the distribution of KIR genes and HLA ligands in a population from Campinas, southeastern Brazil (n = 292), and to compare their results with other populations. A comprehensive analysis of population-specific genes, genotype, and haplotype frequencies of KIR may facilitate a better understanding of their evolution and role in immunity. The genotyping of 16 KIR genes and HLA class I alleles was performed by the reverse sequence-specific oligonucleotide methodology using the Luminex platform (One Lambda, Inc., Canoga Park, CA). The framework genes were present in all individuals, with the most common non-framework KIR genes detected being KIR2DP1(96.6%), KIR2DL1(95.5%), KIR3DL1(94.5%), KIR2DS4(93.8%) and KIR2DL3(87.3%). KIR2DS1, KIR2DS3, KIR2DS5, and KIR3DS1 presented frequencies below 40%. KIR2DL2, KIR2DL5, and KIR2DS2 showed intermediate frequencies (between53% and 58%). The activating gene KIR2DS5 was the least common in this population (30.8%). Forty-five KIR profiles were found with the commonest being the homozygous A haplotype (27.4%). The distribution of KIR genes in the Brazilian population is similar to Caucasian European and Euro-descendant populations. |
| Databáze: | Directory of Open Access Journals |
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