Vascular endothelial cells regulate the passage of fluids, solutes, and cells from the vascular space to the tissues. Disruption of vascular integrity is involved in the pathogenesis of inflammatory diseases including transfusionrelated acute lung injury (TRALI), a most severe nonhemolytic transfusion reaction with symptoms such as dyspnea and/or hypotension and fever. Pulmonary edema, due to i...

Human autoimmune diseases are a class of complex immune system disorders characterized by loss of tolerance to self-antigens. HLA class II molecules play a central role in the initiation, propagation and prolongation of the disease process. HLA class II transgenic mice with mouse endogenous class II gene Ab knockout were used successfully in several mouse models for human autoimmune diseases, s...

objective: this study aimed to investigate the association between hla alleles and visceral leishmaniasis (vl) in a sample of iraqi patients. methods: a total of 30 patients were studied, in addition to 20 age, gender and ethnicity matched controls. all subjects were genotyped by polymerase chain reaction-sequence specific primers (pcr-ssp) method. results: for hla-class i region (a and b loci)...

the association of hla class ii genes with ulcerative colitis (uc) as an autoimmune disease has been investigated for several years. however, factors responsible for genetic predisposition of this disease have so far not been clearly understood. in this study, for the first time, we aimed to investigate the association between hla-drb1 types and uc in the population of kerman, a city southeast ...

Disulfide reduction is an important step in antigen processing for HLA class II restricted T cell responses. Migration inhibitory factor (MIF) is a member of the thioredoxin family and has been classically defined as a cytokine. Using enzyme-linked immunosorbent assay and CD analysis, here we describe the binding to MIF of two peptides, hepatitis B surface antigen (HBsAg) and insulin B (InsB) w...

The major histocompatibility complex (MHC) is located on chromosome 6 and includes more than 200 genes, most of which such as those encoding HLA are a mandatory requisite for the immune system. In particular, the HLA class II genomic region encodes proteins (namely HLA DR, DQ, and DP) involved in the presentation of extracellular peptides to HLA class II T helper cells (Thelper) that mediates t...

Human myeloid progenitor cells temporarily express HLA class II molecules during the differentiation pathway to granulocytes and macrophages. The significance of major histocompatibility complex (MHC) class II molecules at this stage of development is unknown. As a first stop of inquiry into their function, we have characterized the profile of major self-peptides bound to the HLA-DR molecules e...

The human major histocompatibility complex HLA is located on the short arm of chromosome 6. It is known to be the most polymorphic genetic system in humans. The biological role of the HLA class I and class II molecules is to present processed peptide antigens. The HLA system is clinically important as transplantation antigens. Molecular HLA allele typing is routinely performed to provide HLA cl...

CD4 positive T helper cells control many aspects of specific immunity. These cells are specific for peptides derived from protein antigens and presented by molecules of the extremely polymorphic major histocompatibility complex (MHC) class II system. The identification of peptides that bind to MHC class II molecules is therefore of pivotal importance for rational discovery of immune epitopes. H...