A previous issue of the ASHI Quarterly introduced HLAMatchmaker as a matching program that considers the structural basis of epitopes on class I HLA antigens. Each HLA antigen can be viewed as a string of short sequences (triplets) involving polymorphic amino acid residues in antibodyaccessible positions; the triplets are considered key elements of epitopes that can induce the formation of spec...

Bacterial envelope proteins which share immunodeterminants with the human leukocyte antigen (HLA) class I histocompatibility antigen HLA-B27 may invoke spondyloarthritic disease through the process of molecular mimicry in patients expressing this phenotype. Monoclonal antibodies generated by the immunization of BALB/c mice with envelope proteins of Shigella flexneri type 2a were tested for reac...

INTRODUCTION It has previously been shown that an increased number of antibodies against citrullinated peptides/proteins (ACPA) predate the onset of rheumatoid arthritis (RA). Over time antibody positivity expands, involving more specific responses when approaching the onset of symptoms. We investigated the impact of human leukocyte antigen-shared epitope (HLA-SE) alleles and smoking on the dev...

The apical membrane antigen 1 (AMA1), merozoite surface antigen 2 (MSA2), and merozoite surface protein 1 (MSP1) are asexual-stage proteins currently being evaluated for inclusion in a vaccine for Plasmodium falciparum. Accordingly, it is important to understand factors that control antibody responses to these antigens. Antibody levels in plasma from residents of Etoa, Cameroon, between the age...

Aims/hypothesis: WHO considers an etiological classification of diabetes to be essential. To evaluate whether HLA-DQB1 genotypes facilitates the classification of diabetes as compared with islet antibodies, young adult diabetic patients were investigated. Methods: Blood samples were available at diagnosis from 1872 (90%) of the 2077 young adult patients (15-34 years old) during a five-year peri...

В статье представлен литературный обзор изданий на тему: HLA-ассоциированные антитромбоцитарные антитела. Описывается роль HLA-антитромбоцитарных антител в развитии рефрактерности при трансфузиях тромбоконцентрата. Несмотря совершенствование методов подготовки, хранения крови и ее компонентов, тщательное соблюдение правил переливания, к сожалению, посттрансфузионные гемолитические негемолитичес...

Alloimmunity driving rejection in the context of solid organ transplantation can be grossly divided into mechanisms predominantly driven by either T cell-mediated rejection (TCMR) and antibody-mediated rejection (ABMR), though the co-existence of both types of rejections can be seen in a variable number of sampled grafts. Acute TCMR can generally be well controlled by the establishment of effec...

Synthetic peptides selected from HLA-DQ and HLA-DP glycoproteins were coupled to Sepharose, and used for the isolation of anti-HLA Class II antibodies from the immune sera of rabbits immunized with human lymphoblastoid cells expressing Class II antigens. Antibodies from early and late bleedings displayed remarkable differences in affinity for peptides and for soluable membrane proteins: these d...

Donor human leukocyte antigen (HLA)-specific antibodies (DSA) play an important role in solid organ transplantation. Preexisting IgG isotype DSA are considered a risk factor for antibody mediated rejection, graft failure or graft loss. The post-transplant development of DSA depends on multiple factors including immunogenicity of mismatched antigens, HLA class II typing of the recipient, cytokin...