Abstract: The present invention broadly relates to the field of protein modification, and, more specifically, to conjugates of proteins or analogs thereof to a water-soluble biocompatible polymer and methods of making and using the same.

Abstract: The present invention relates to conjugate comprising a carrier substituted with one or more occurrences of a moiety having the structure (I): wherein each occurrence of M is independently a modifier having a molecular weight?10 kDa; denotes direct of indirect attachment of M to linker LM; and each occurrence of LM is independently an optionally substituted succinamide-containing linker, whereby the modifier M is directly or indirectly attached to the succinamide linker through an amide bond, and the carrier is linked directly or indirectly to each occurrence of the succinamide linker through an ester bond. In another aspect, the invention provides compositions comprising the conjugates, methods for their preparation, and methods of use thereof in the treatment of various disorder, including, but not limited to cancer.

Abstract: The present invention relates to biodegradable biocompatible polyketals, methods for their preparation, and methods for treating animals by administration of biodegradable biocompatible polyketals. In one aspect, a method for forming the biodegradable biocompatible polyketals comprises combining a glycol-specific oxidizing agent with a polysaccharide to form an aldehyde intermediate, which is combined with a reducing agent to form the biodegradable biocompatible polyketal. The resultant biodegradable biocompatible polyketals can be chemically modified to incorporate additional hydrophilic moieties. A method for treating animals includes the administration of the biodegradable biocompatible polyketal in which biologically active compounds or diagnostic labels can be disposed. The present invention also relates to chiral polyketals, methods for their preparation, and methods for use in chromatographic applications, specifically in chiral separations.

Abstract: The present invention relates to biodegradable biocompatible polyketals, methods for their preparation, and methods for creating animals by administration of biodegradable biocompatible polyketals. In one aspect, a method for forming the biodegradable biocompatible polyketals comprises combining a glycol-specific oxidizing agent with a polysaccharide to form an aldehyde intermediate, which is combined with a reducing agent to form the biodegradable biocompatible polyketal. The resultant biodegradable biocompatible polyketals can be chemically modified to incorporate additional hydrophilic moieties. A method for treating animals includes the administration of the biodegradable biocompatible polyketal in which biologically active compounds or diagnostic labels can be disposed. The present invention also relates to chiral polyketals, methods for their preparation, and methods for use in chromatographic applications, specifically in chiral separations.

Abstract: Drug-carrier complexes, drug carriers, pharmaceutical formulations, methods of delivery drugs to an organism or tissue culture, methods of increasing the solubility of a substance, targeted carriers, drug delivery systems and implants are described. The compositions and methods of the invention include forming complexes having reversible associations between nucleotides and drugs. The compositions and methods of the invention can be employed to target drugs to cells, organisms or combinations of cells to treat and to study the underlying mechanisms of diseases, and to test drug candidates.

Abstract: Biologically active agents covalently linked to a polymer. The polymer is preferably a biodegradable polymer are provided. The biologically active agent is preferably a protein, such as an extracellular soluble protein, e.g., an extracellular enzyme. The enzyme can be an apyrase, e.g., NTPDase. Conjugates of the invention can be used as therapeutics in subjects. For example, a conjugate comprising an apyrase can be used for treating and preventing thrombosis, atherosclerotic plaque complications and vascular disorders.