The intracellular 52-kd Ro/SSA autoantigen in keratinocytes is up-regulated by tumor necrosis factor alpha via tumor necrosis factor receptor I. - Gerl,V.; Hostmann,B.; Johnen,C.; Waka,A.; Gerl,M.; Schumann,F.; Klein,R.; Radbruch,A.; Hiepe,F. (Arthritis Rheum, 2005)