“…It is shown that several positively charged viral and bacterial peptides and proteins (Quaratino et al, 1995;Wucherpfennig and Strominger, 1995;Hausmann et al, 1999) can mimic sequentially unrelated positively charged autoantigens of human proteins (e.g. myelin basic protein, proteins of ribonucleoprotein complex Ro/La, C1q) (Routsias and Tzioufas, 2010;Stoyanova et al, 2012;Mameli et al, 2014), and can activate autoreactive T and B cell responses (Vaughan et al, 1995;Wucherpfennig and Strominger, 1995;Sospedra et al, 2005). However, sometimes, just like in the case of nuclear antigens and Hu7ap, cross-reactivity between autoantigens and the inducer of the autoantibodies cannot be detected (Vaughan et al, 1995).…”