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- W4323670183 abstract "Introduction Non-Hodgkin lymphoma (NHL) is a heterogeneous disease, with each subtype associated with different risk factors. Within this group, diffuse large B-cell lymphoma (DLBCL) can be highlighted, the most common type of NHL.NK cells are key components of the innate immune response and may play an important antitumor role. Objective The objective of the present work was to determine the polymorphism of KIR genes in Brazilian patients with DLBCL. Materials and Methods Furthermore, we evaluated the association between the polymorphism of these genes and their ligands with the clinical course of the disease. For the study, 112 patients with DLBCL and 222 voluntary blood and bone marrow donors. The genetic material of these samples were extracted for KIR and HLA typing, determination of HLA ligands, determination of the KIR haplotype and search for the deletion of 22 bp in the KIR2DS4 gene. KIR genotype distributions were made by direct counting using 2 × 2 contingency tables using Fisher's exact test. The magnitude of the association was measured by odds ratio (OR) and 95% confidence interval. P values <.05 were considered significant. Overall survival and progression-free survival were assessed with a Kaplan-Meier estimator. Results In the present study, an association of HLA-Bw4 and HLA-Bw480I ligand was found with more advanced stages of the disease. Also, an association of the KIR2DL3 gene with a better response to treatment was found. Conclusion With this, we can conclude that the polymorphism of KIR genes and the association with HLA ligands can influence the prognosis of DLBCL, as well as the response to treatment was found. With this, we can conclude that the polymorphism of KIR genes and the association with HLA ligands can influence the prognosis of DLBCL, as well as the response to treatment.Non-Hodgkin lymphoma (NHL) is a heterogeneous disease, with each subtype associated with different risk factors. Within this group, diffuse large B-cell lymphoma (DLBCL) can be highlighted, the most common type of NHL.NK cells are key components of the innate immune response and may play an important antitumor role. The objective of the present work was to determine the polymorphism of KIR genes in Brazilian patients with DLBCL. Furthermore, we evaluated the association between the polymorphism of these genes and their ligands with the clinical course of the disease. For the study, 112 patients with DLBCL and 222 voluntary blood and bone marrow donors. The genetic material of these samples were extracted for KIR and HLA typing, determination of HLA ligands, determination of the KIR haplotype and search for the deletion of 22 bp in the KIR2DS4 gene. KIR genotype distributions were made by direct counting using 2 × 2 contingency tables using Fisher's exact test. The magnitude of the association was measured by odds ratio (OR) and 95% confidence interval. P values <.05 were considered significant. Overall survival and progression-free survival were assessed with a Kaplan-Meier estimator. In the present study, an association of HLA-Bw4 and HLA-Bw480I ligand was found with more advanced stages of the disease. Also, an association of the KIR2DL3 gene with a better response to treatment was found. With this, we can conclude that the polymorphism of KIR genes and the association with HLA ligands can influence the prognosis of DLBCL, as well as the response to treatment was found. With this, we can conclude that the polymorphism of KIR genes and the association with HLA ligands can influence the prognosis of DLBCL, as well as the response to treatment." @default.
- W4323670183 created "2023-03-10" @default.
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- W4323670183 date "2023-06-01" @default.
- W4323670183 modified "2023-10-17" @default.
- W4323670183 title "Association of KIR Genes Polymorphism and its HLA Ligands in Diffuse Large B-cell Lymphoma" @default.
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- W4323670183 doi "https://doi.org/10.1016/j.clml.2023.03.001" @default.
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