Materials and methods are provided to prepare therapeutic conjugates for the treatment of proliferative diseases. The therapeutic conjugates of the invention comprise a targeting moiety conjugated to a therapeutic moiety. The therapeutic moiety of the conjugates of the present invention have a cytotoxic...http://www.google.de/patents/US20040249130?utm_source=gb-gplus-sharePatent US20040249130 - Aptamer-toxin molecules and methods for using same