Human leukocyte antigen (HLA) genes have been associated with susceptibility and protection against a number of cancers. Here we used an immunogenetic epidemiological approach to evaluate the overall influence 127 HLA Class I II alleles on 30 types cancer. We found preponderance protective (negatively correlated cancer prevalences), especially for I. Of cancers investigated, 13 were mostly effe...

the human leukocyte antigen g (hla-g) molecule exhibits limited tissue distribution, low polymorphism and alternative splicings that generate seven hla-g isoforms. hla-g exerts multiple immunoregulatory functions. recent studies indicate an ectopic up-regulation in tumor cells that may favor their escape from anti-tumor immune responses. this study it is an effort to clarify the presence of hla...

introduction: human leukocyte antigen (hla) genes are the most polymorphic loci in the human genome. they predict the outcome of transplantation by detecting self from non-self antigens. the best use of hla typing is to find a hla-match donor for bmt candidate patients. evidence suggests that matching unrelated donors and recipients for hla-a, -b and -drb1 loci is a prediction for an improved o...

Background: During pregnancy, the maternal immune system is in close contact with cells and tissue from the semiallogenic fetus .The Human Leucocyte Antigen (HLA) class Ib molecules, HLA-E, -F and -G, are expressed at the materno-fetal interface. Because of the apparent immunoregulatory functions of these proteins, they may be involved in successful acceptance of the semi-allogenic fetus during...

Background and Aims: Human leukocyte antigen (HLA) molecules play a substantial role in T Lymphocyte-mediated adaptive immune response. Down-regulation of HLA expression may help the tumor to escape from immune surveillance. This study aimed to evaluate the correlation between HLA-G and HLA-E tissue distribution and the degree of tumor malignancy in human breast tumors. Materials and Methods:...

background: hla b27 is a sub class of human leukocyte antigen (hla) class i molecule. it was known as the first genetic risk factor associating with ankylosing spondylitis (as). allele frequency of hla-b27 alleles is different across populations. the present study is aimed to investigate the prevalence of hla-b27 in patients referred to danesh clinical laboratory during 2014 to 2015. methods an...

human leukocyte antigen-g which is an immune tolerance effecter molecule has an important role in the maintenance of fetus during pregnancy. abortion is one of the complications of pregnancy period.  in this research, we have studied levels of hla-g 5, hla-g7 isoforms in the abortion-threatened pregnant women in comparison with controls. in a case-control study, 101 abortion-threatened women an...

Human Leukocyte Antigen (HLA) complexes are critical cell-surface protein assemblies that facilitate T-cell surveillance of almost all cell types in the body. While receptor binding to HLA class I and II is well-described with detailed structural information, nature cis interactions within plasma membrane surveyed cells remains be better characterized, as protein-protein environment technically...

serology and dna techniques are employed for human leukocyte antigen (hla) typing in different transplant centers. results may not always correlate well and may need retyping with different technique. all the patients (with aplastic anemia, thalassemia, and immunodeficiency) and their donors, requiring hla typing for bone marrow transplant were enrolled in the study. serological hla typing was ...

Human leukocyte antigen (HLA)-G molecule, a non-classical HLA-Ib molecule, is less polymorphic when compared to classical HLA class I molecules. Human leukocyte antigen-G (HLA-G) was first detected on cytotrophoblast cells at the feto-maternal interface but its expression is prevalent during viral infections and several autoimmune diseases. HLA-G gene is characterized by polymorphisms at the 3'...