Sera from approximately two-thirds of patients with rheumatoid arthritis contain an antibody which is reactive with a nuclear antigen present in human B-lymphocyte tissue culture cells. The immunological reaction can be demonstrated by precipitation and immunofluorescence. Evidence is present that the reactive nuclear antigen is associated with Epstein-Barr (EB) virus-transformed lymphocytes. N...

Cross-presentation of tumor antigen is essential for efficient priming of naïve CD8⁺ T lymphocytes and induction of effective anti-tumor immunity. We hypothesized that the subcellular location of a tumor antigen could affect the efficiency of cross-presentation, and hence the outcome of anti-tumor responses to that antigen. We compared cross-presentation of a nominal antigen expressed in the nu...

Prior studies have shown that patients with seropositive rheumatoid arthritis (RA) have an increased frequency of precipitating antibody against a nuclear antigen, the RA nuclear antigen, detected in human B lymphoblastoid cell lines infected by Epstein-Barr virus. The present investigations demonstrate that patients with seropositive RA also have specifically elevated titers of antibodies to a...

Epstein-Barr viral capsid antigen and nuclear antigen produced by modified procedures were evaluated for use in measuring viral capsid antigen immunoglobulin M and Epstein-Barr virus nuclear antigen antibody responses in sera from patients with suspected Epstein-Barr virus infections. Viral capsid antigen production was stimulated with a phorbol ester, and the Epstein-Barr virus nuclear antigen...

Purpose of the study HAART has greatly modified the course of HIV-1 infection; however, its impact seems to be less favourable on lymphoproliferative disorders associated with EpsteinBarr virus (EBV) than on other AIDS-defining illnesses. The aim of this study was to estimate the relationship between EBV levels and other viro-immunological parameters in HIV-1 infected subjects in the HAART era.

Objectives: Mono or infectious mononucleosis (IM) is often referred to as the kissing illness. Epstein-Barr virus (EBV), which causes mono, spread by saliva. Kissing, sharing a drink, eating utensils with person who has can transmit disease healthy individuals. This study investigates several bioactive compounds derived from plants forecast how effective plant-based ligands will be at preventin...

Most patients with seropositive rheumatoid arthritis, and a variable but lesser percentage of normal subjects, have precipitating antibodies to a nuclear antigen, rheumatoid arthritis nuclear antigen, present in Epstein-Barr virus-infected human B lymphoblastoid cells. We have used a sensitive indirect immunofluorescence assay for antibody to rheumatoid arthritis nuclear antigen in a study of p...

background : e-cadherin is a trans-membrane glycoprotein that plays a critical role in many aspects of cell adhesion as well as establishment and maintenance of epithelial cell polarity. loss of the adhesive function of e-cadherin seems to promote invasive and metastatic properties of neoplastic cells.   objectives: the present study is a retrospective study aiming to evaluate the loss of e-cad...