Inventors:
David A. Scheinberg - New York NY, US
International Classification:
A61K 31/7105, C07K 16/18, C12N 15/113, A61K 39/395, A61K 31/713, A61P 35/00, A61P 37/00, A61P 35/02, A61P 19/04, A61P 3/10, A61P 29/00, A61P 17/06, A61P 17/14, A61P 27/02, C07H 1/00, C07H 21/02
US Classification:
4241781, 536 231, 5303917, 536 245, 514 44 R, 514 44 A, 536 253
Abstract:
Aptamers and improved aptamers are provided with enhanced efficacy for binding to target molecules in vivo or for treating cancer or other diseases. Such improvements in aptamers are provided that enhance in vivo efficacy such as binding to the target molecule or enhancing anti-cancer activity. Such improvements also include stability to serum nucleases, reduced binding to a soluble form of the target molecule, increased avidity, affinity or specificity to the target molecule on a cell surface, increased lifetime in circulation, or any combination of the foregoing. Improvements are provided by truncation, multimerization, including at least one non-natural nucleic acid, adding a 3′ or 5′ polyethylene glycol, or any combination thereof. Aptamers for treatment of autoimmune diseases are also provided.