Suppression and acceleration of experimental amyloidosis in mouse model.

Leupeptins, protease inhibitors, suppress the appearance of experimental amyloidosis in CBA mice induced by the injections with complete Freund's adjuvant. This substance, however, should be administered continuously from 1 week prior to amyloid induction to the end of the experiment. On the other hand, Trypan blue, inhibitors of lysosomal enzymes, accelerates experimental amyloidosis in the mouse model above-mentioned. Trypan blue is effective when given either prior to or at the same time of the initiation of amyloid induction. Organic Germanium has not been confirmed to be a potent suppressor of experimental murine amyloidosis but the experimental group administered this substance continuously from 1 week prior to the induction shows a rather low incidence of amyloidosis, and the average number of amyloidotic organs per affected mouse is about half of that of the control group. The suppression and acceleration of experimental murine amyloidosis presented here are a useful tool for investigating the pathogenesis of amyloidosis.