... Ibrahim11Department of Immunology, University of Rostock, Rostock, Germany2Department of Neurology, University of Rostock, Rostock, Germany3Department of Pathology, University of Rostock, Rostock, Germany4Institute ... anincreased frequency of memory phenotype of lpr T cells upon stimulation with collagen, phenotypic analysis of sur-face expression of CD44 on T lymphocytes was performed.No change of memory cell populations ... pathology of arthritis in at least two ways: throughpromotion of autoimmunity by blocking tolerance of autore-active lymphocytes and AICD, or through destruction of tar-get tissues by induction of...