Caniatti MCDCL, Borelli SD, Guilherme ALF, Franzener SB, Tsuneto LT. Association between KIR genes and dust mite sensitization in a Brazilian population.
Hum Immunol 2017;
79:51-56. [PMID:
29100942 DOI:
10.1016/j.humimm.2017.10.018]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Revised: 10/29/2017] [Accepted: 10/30/2017] [Indexed: 10/18/2022]
Abstract
BACKGROUND
Killer cell immunoglobulin-like receptors (KIRs), found on the surface of natural killer (NK) cells, play a key role in controlling the innate response. Such response depends on a series of cellular interactions between these receptors and HLA activating/inhibiting ligands. Atopic diseases have been associated with genes that regulate cytokine production and HLA genes, which may either protect or predispose to hypersensitivity.
OBJECTIVE
To verify an association study of KIR genes with sensitization to the following mites: Dermatophagoides farinae, Dermatophagoides pteronyssinus, and Blomia tropicalis.
METHODS
A total of 341 children aged up to 14 years, were classified as mite-sensitive or mite-insensitive after undergoing a skin prick test for immediate allergic reactions. The presence/absence of KIR genes and their human leukocyte antigen (HLA) ligands was determined by polymerase chain reaction-sequence specific oligonucleotide (PCR-SSO) with the commercial kit LabType™ using Luminex™.
RESULTS
The frequencies of KIR genes and their respective class I HLA ligands and the frequency of haplotypes were performed in sensitive and insensitive individuals, and no significant differences were found.
CONCLUSION
Our results suggest no influence of KIR genes on resistance/susceptibility to sensitization to dust mites.
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