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  Specific human antibodies for selective cancer therapyUSPTO Application #: 20070149768Title: Specific human antibodies for selective cancer therapy Abstract: The present invention is directed to a peptide or polypeptide comprising an Fv molecule, a construct thereof, a fragment of either, or a construct of a fragment having enhanced binding characteristics so as to bind selectively and/or specifically to a target cell in favor of other cells, wherein the binding selectivity or specificity is primarily determined by a first hypervariable region, and wherein the Fv is a scFv or a dsFv, and optionally having one or more tags. The enhanced binding is directed to a substantially exposed and/or over-expressed binding site on or in a target comprising a cell in favor of other cells on or in which the binding site is not substantially available and/or expressed. The invention is further directed to a method for isolating such peptides and polypeptides from a phage display library and to the nucleic acid molecules encoding them. The invention provides for a pharmaceutical composition comprising the peptide or polypeptide and kits for diagnosis and treatment of disease, specifically cancer, most specifically acute myeloid leukemia. (end of abstract) USPTO Applicaton #: 20070149768 - Class: 530388800 (USPTO) Related Patent Categories: Chemistry: Natural Resins Or Derivatives; Peptides Or Proteins; Lignins Or Reaction Products Thereof, Proteins, I.e., More Than 100 Amino Acid Residues, Blood Proteins Or Globulins, E.g., Proteoglycans, Platelet Factor 4, Thyroglobulin, Thyroxine, Etc., Globulins, Immunoglobulin, Antibody, Or Fragment Thereof, Other Than Immunoglobulin Antibody, Or Fragment Thereof That Is Conjugated Or Absorbed, Monoclonal, Binds Microorganism Or Normal Or Mutant Component Or Product Thereof (e.g., Animal Cell, Cell-surface Antigen, Secretory Product, Etc.),
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