Diagnostic value of the Epstein-Barr virus serological markers in patients with nasopharyngeal carcinoma in cases of undetectable primary tumor location.

The goal of this work was to describe a method for diagnosis of the non-keratinizing nasopharyngeal carcinoma (nNPC) in cases of the undetectable primary tumor location. The method is based on evaluation of IgG and IgA antibody levels to the capsid (VCA) and early antigens (EA) of the Epstein-Barr virus (EBV). The diagnosis of nNPC is established by a so-called decision rule.

Combinatorial antibody library from multiple sclerosis patients reveals antibodies that cross-react with myelin basic protein and EBV antigen.

Multiple sclerosis (MS) is a widespread neurodegenerative autoimmune disease with unknown etiology. It is increasingly evident that, together with pathogenic T cells, autoreactive B cells are among the major players in MS development. The analysis of myelin neuroantigen-specific antibody repertoires and their possible cross-reactivity against environmental antigens, including viral proteins, could shed light on the mechanism of MS induction and progression.