Abstract: A method and pharmaceutical composition are provided for enhancing the endogenous immune response-mediated elimination of a population of pathogenic cells in a host animal wherein the pathogenic cells preferentially express, uniquely express, or overexpress a binding site for a particular ligand. The invention comprises administering the ligand conjugated to an immunogen to a host animal harboring the population of pathogenic cells. Antibodies, preexisting or administered to the host animal to establish a passive immunity, directed against the immunogen bind to the ligand-immunogen conjugate resulting in elimination of the pathogenic cells by the host's immune response.

Abstract: A method and pharmaceutical composition are provided for enhancing the endogenous immune response-mediated elimination of a population of pathogenic cells in a host animal wherein the pathogenic cells preferentially express, uniquely express, or overexpress a binding site for a particular ligand. The invention comprises administering the ligand conjugated to an immunogen to a host animal harboring the population of pathogenic cells. Antibodies, preexisting or administered to the host animal to establish a passive immunity, directed against the immunogen bind to the ligand-immunogen conjugate resulting in elimination of the pathogenic cells by the host's immune response.

Abstract: A method and pharmaceutical composition are provided for enhancing the endogenous immune response-mediated elimination of a population of pathogenic cells in a host animal wherein the pathogenic cells preferentially express, uniquely express, or overexpress a binding site for a particular ligand. The invention comprises administering the ligand conjugated to an immunogen to a host animal harboring the population of pathogenic cells. Antibodies, preexisting or administered to the host animal to establish a passive immunity, directed against the immunogen bind to the ligand-immunogen conjugate resulting in elimination of the pathogenic cells by the host's immune response.

Abstract: An improved method is provided for treating disease states characterized by the existence of pathogenic cell populations. In accordance with the improved method, cell-targeted ligand-immunogen or ligand-hapten complexes are administered to a diseased host to redirect the host immune response to the pathogenic cells which have an accessible binding site for the ligand. The method comprises the step of administering to the host a ligand-immunogen or ligand-hapten conjugate composition comprising a complex of the ligand and the immunogen or hapten wherein the immunogen/hapten is recognized by an endogenous antibody in the host or directly by an immune cell in the host. The improvement to the method comprises the step of using a TH1-biasing adjuvant to enhance the immune response to cell-bound ligand-immunogen or ligand-hapten conjugates.

Abstract: A method and pharmaceutical composition are provided for enhancing the endogenous immune response-mediated elimination of a population of pathogenic cells in a host animal wherein the pathogenic cells preferentially express, uniquely express, or overexpress a binding site for a particular ligand. The invention comprises administering to a host animal harboring the population of pathogenic cells the ligand conjugated to an immunogen capable of activating a toll-like receptor. At least one additional therapeutic factor can be administered wherein the therapeutic factor is a compound capable of stimulating an endogenous immune response wherein the compound does not bind to the ligand-immunogen conjugate.

Abstract: A method and pharmaceutical composition are provided for enhancing the endogenous immune response-mediated elimination of a population of pathogenic cells in a host animal wherein the pathogenic cells preferentially express, uniquely express, or overexpress a binding site for a particular ligand. The invention comprises administering the ligand conjugated to an immunogen to a host animal harboring the population of pathogenic cells. Antibodies, preexisting or administered to the host animal to establish a passive immunity, directed against the immunogen bind to the ligand-immunogen conjugate resulting in elimination of the pathogenic cells by the host's immune response.