Considerable evidence supports the concept that CD4(+) T cells are important in sarcoidosis pathogenesis, but the antigens responsible for the observed Th1 immunophenotype remain elusive. The epidemiologic association with bioaerosols and the presence of granulomatous inflammation support consideration of mycobacterial antigens. To explore the role of mycobacterial antigens in sarcoidosis immun...

Several studies have now clearly indicated the presence of tumor-associated and tumor-specific antigens in cells of human malignant melanoma. These antigens have been identified by means of several quite different techniques, including the use of antibodies detectable against the antigens, either by means of immunofluorescence, (1-5) cytotoxicity (4, 6, 7) or by extracting the antigen and obtai...

Background The interaction between the immune system and cancer cells has become a focus of recent cancer therapy research. Immunogenic cell death, short ICD, was described as a cell death modality that stimulates an immune response against dead-cell antigens, in particular when they derive from cancer cells. Most malignant cells are poorly immunogenic and fail to elicit an effective antitumour...

The relatively unrelated spotted fever group rickettsia Rickettsia rhipicephali conferred on guinea pigs protective immunity against challenge with virulent R. rickettsii. Immunity was conferred at all doses of R. rhipicephali used in the study. Because of the serologic unrelatedness of these two rickettsiae, determined by the use of microimmunofluorescence and other serological assays, further...

Pregnancy has often been likened to an allograft due to the genetic differences between the mother and her baby. Upon the discovery of the major histocompatibility complex antigens in the 1950s it was reasoned that in order for the mother to tolerate the fetus, the 2 must somehow prevent or suppress an immune response that could result because of their immunogenetic differences. Initial hypothe...

Since the 1920s the gold standard for treating cancer has been surgery, which is typically preceded or followed with chemotherapy and/or radiation, a process that perhaps contributes to the destruction of a patient’s immune defense system. Cryosurgery ablation of a solid tumor is mechanistically similar to a vaccination where hundreds of unique antigens from a heterogeneous population of tumor ...

Abstract We previously developed TANTIGEN, a comprehensive online database cataloging more than 1000 T cell epitopes and HLA ligands from 292 tumor antigens. In TANTIGEN 2.0, we significantly expanded coverage in both immune response targets (T ligands) It catalogs 4,296 antigen variants 403 unique antigens 1500 ligands. also included neoantigens, class of generated through mutations resulting ...

BACKGROUND Tryptophan-rich antigens of malarial parasites have been proposed to be the potential vaccine candidate antigens. Plasmodium vivax contains the largest number of such antigens, which need to be evaluated for their immune responses. METHODS Recombinant proteins of 15 P. vivax tryptophan-rich antigens (PvTRAgs) were expressed, purified, and used for the human humoral and cellular imm...

Genetic control of immune response was investigated by family and population analyses in humans. It was first recognized that there are high responders and low or non responders to natural antigens in human population. Family analysis revealed that low responsiveness to streptococcal cell wall antigen (SCW) was inherited as an HLA-linked dominant trait. CD8 + suppressor T ceils existed in low r...