Infrared Spectral Patterns of Thyroglobulin Bearing Thyroiditogenic Epitopes.

Thyroglobulin is a major autoantigen to which autoimmune response, destroying the thyroid gland in Hashimoto's thyroiditis, is directed. To detect a pathological autoimmune response to thyroglobulin, as well as the successful induction of experimental autoimmune thyroiditis, thyroglobulin carrying thyroiditogenic epitopes is necessary. It is not known which features of thyroglobulin structure determine the presence of thyroiditogenic epitopes and can serve as markers of their presence.

Regulatory Rheumatoid Factor is Specific to PD-1 and Uses PD-1 Pathway to Control CD4 T Lymphocytes.

Background: We have earlier discovered a new factor of autoimmunity downregulation, called regulatory rheumatoid factor (regRF). Being anti-idiotypic antibodies, regRF restricts the expansion of CD4 T lymphocytes to the idiotype of which it is specific, according to the negative feedback principle. It has been shown that only activated CD4 T lymphocytes are the target of regRF.

Regulatory and other rheumatoid factors in rheumatoid arthritis patients with active disease or in remission.

Background: Previously, we identified a regulatory rheumatoid factor (regRF), the production of which provides rats with resistance to collagen-induced arthritis (CIA). Immunization with conformers of IgG Fc fragments carrying epitopes specific to regRF reduces symptoms of CIA. The aim of this study was to determine whether there is a link between regRF levels and rheumatoid arthritis (RA) activity in humans in order to assess the potential of regRF as a therapeutic biotarget in RA.

Suppression of experimental autoimmune encephalomyelitis by IgG Fc fragments bearing regRF epitopes.

Previously we identified a rheumatoid factor, the production of which provides rats with resistance to experimental autoimmune diseases. It has been named regulatory rheumatoid factor (regRF). Immunization with conformers of IgG Fc fragments carrying epitopes specific to regRF reduces rat collagen-induced arthritis.

Аtherosclerosis-like changes in the rabbit aortic wall induced by immunization with native high-density lipoproteins.

Introduction: A high level of total cholesterol or low-density lipoprotein (LDL) cholesterol is considered the main cause of atherosclerosis and cardiovascular disease. For this reason, experimental atherosclerosis is induced by creating high blood cholesterol in animals. However, the hypothesis that atherosclerotic processes are mostly caused by immune (autoimmune) mechanisms has recently been gaining traction.

Immunoglobulin G amplifies the production of regulatory rheumatoid factor in vitro through idiotype-anti-idiotype interactions.

Immunoglobulin G can inhibit antibody response. The mechanism of immunosuppression by immunoglobulins remains unknown. Recently, we found a new factor of immunoregulation referred to as regulatory rheumatoid factor (regRF).

The idiotypic network in the regulation of autoimmunity: Theoretical and experimental studies.

The regulation of autoimmunity is a key issue in fundamental immunology. Despite outstanding achievements on this front, we currently have more questions than answers. The idea of an immune network as a regulatory mechanism is quite attractive, since it enables us to explain the selectivity (specificity), and moreover the clonality, of the regulation.