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Summary Animal models have been shown to be very valuable in the elucidation of pathologic mechanisms in complex human diseases. However, conscientious comparison with the human disease is required to define to what extend the respective model is relevant for the human situation. In this study we have compared Cyclosporine A-induced autoimmunity in the rat with human scleroderma and hereby we have taken into account the histo- and immunopathology, the presence of vascular abnormalities, and the occurrence of circulating autoantibodies. Altogether, the macroscopical and histopathological similarities are the most important characteristics for considering Cyclosporine A-induced autoimmunity as an experimental model for human scleroderma. Furthermore, the presence of T cells and macrophages in the lesions, as well as the peripheral immune deviation within the CD4 T cell compartment are two other common factors and they justify the use of the animal model Cyclosporine A-induced autoimmunity in further studies on the role of T cells in the pathogenesis of scleroderma. |
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