BACKGROUND The human leukocyte antigen-G (HLA-G) gene is highly expressed in cancer pathologies and is one strategy used by tumor cells to escape immune surveillance. A 14-bp insertion/deletion (InDel) polymorphism of the HLA-G gene has been suggested to be associated with HLA-G mRNA stability and the expression of HLA-G. The aim of present study was to assess any genetic association between th...

Human leukocyte antigen (HLA) gene region encodes a set of HLA molecules functioning critical roles in immune response. Each HLA gene locus shows extensive polymorphism with ever-increasing number of alleles. The HLA nomenclature system for alleles defined by DNA typing was first established in 1987 and has been revised several times. Recently, it has been revised again with a new frame that ca...

Background Allogenic hematopoietic stem cell transplantation (HSCT) is a strategy used for treatment of different malignant diseases. However, success of allo-HSCT can be hampered by graft-versus-host-disease (GVHD). Natural killer (NK) cells may play an important role in activating antigen presenting cells and subsequent activation of T cells. The main purpose of this study was the evaluation ...

ImportanceBeta-lactams (BLs) are the most prescribed antibiotics, being frequent cause of drug allergy. However, association between BL allergy and genetic variations is still unclear.ObjectiveThis systematic review meta-analysis aimed to summarize effects BL-induced hypersensitivity using existing evidence.MethodsWe searched PubMed, Medline, Scopus, EMBASE, CINAHL, Cochrane Library from incept...

Hematopoietic function of some aplastic anemia (AA) patients is dependent on the administration of cyclosporine (CyA). To investigate whether certain HLA class II genes are associated with susceptibility to such CyA-dependent AA, we determined the HLA class II alleles of 59 AA patients treated with CyA. Among 26 patients successfully treated with CyA, 13 required a small dose of CyA to maintain...

OBJECTIVE To study the association between rheumatoid arthritis (RA) and HLA and tumour necrosis factor (TNF) polymorphism in Peruvian mestizo patients in comparison with ethnically similar controls. METHODS Seventy nine patients with RA and 65 ethnically matched healthy controls were genotyped for HLA-DRB1, HLA-DQA1, HLA-DQB1, and TNFalpha and TNFbeta alleles using PCR amplification. Clinica...

some of the genotypes of cytokines are associated with acute graft versus host disease after bone marrow transplantation. the purpose of the present investigation was to find out the possible association between transforming growth factor beta-1 (tgf-β1) codon 25 polymorphism (rs:1800471) and acute graft versus host disease (agvhd) after bone marrow transplantation from the sibling with the sim...

FROM STUDIES on tissue-specific expression and interaction with T and NK cells, it was suggested that HLA-G may have an important role in immunologic tolerance. The recognition of HLA-G polymorphism, its association with other classical HLA class I loci, and eventual variation among different populations may prove to be useful in understanding its immunologic functions and evolution of human po...

A BamHI 3.7-kilobase (kb) fragment detected by an HLA-DQ beta-chain complementary DNA (cDNA) probe and negatively associated with insulin-dependent diabetes mellitus (IDDM) was cloned and sequenced to localize the polymorphism to BamHI sites in intervening sequences of an HLA-DQ beta-chain gene. A probe of the first intervening sequence (IVS 1) showed the BamHI 3.7-kb fragment in 6 of 17 HLA-DR...