Immunobiological properties of the complex of bivalent copper with 3-mercapto-2-hydroxypropyl ether of dextran (C-79).

The immunological investigations were carried out on mice with the aim to determine the immunotropic properties of the complex of bivalent copper with 3-mercapto-2-hydroxypropyl ether of dextran (C-79), a derivative of previously described 3-morpholine-2-hydroxypropyl ether of dextran (H-2). In the examinations of the copper complex also the H-2 preparation was applied, and for comparative purposes--levamisol, a popular stimulator of immunological responses. It was stated that C-79 similarly to H-2 and levamisol, stimulated the humoral and cellular anti-SRBC immunological responses. Moreover, it increased the number of cells producing anti-H-B antibodies, stimulated the appearance of thy-1,2 antigen on the precursor T cells and inhibited the in vivo and in vitro GvH reactions. H-2 and C-79 preparations intensified the effect of the inductor of the Poli I:C.