Abstract: The present invention provides chitosan-based nanoparticles that can protect nucleic acids and deliver the same into gut mucosal cells. Compositions and methods for the expression of therapeutic nucleic acids in cells of the gut mucosa are provided. Compositions and methods for delivering therapeutic proteins systemically from cells of the gut mucosa are also provided.

Abstract: The present invention provides chitosan-based nanoparticles that can protect nucleic acids and deliver the same into gut mucosal cells. Compositions and methods for the expression of therapeutic nucleic acids in cells of the gut mucosa are provided. Compositions and methods for delivering therapeutic proteins systemically from cells of the gut mucosa are also provided.

Abstract: The present invention provides chitosan-based nanoparticles that can protect nucleic acids and deliver the same into gut mucosal cells. Compositions and methods for the expression of therapeutic nucleic acids in cells of the gut mucosa are provided. Compositions and methods for delivering therapeutic proteins systemically from cells of the gut mucosa are also provided.

Abstract: The present invention provides chitosan-based nanoparticles that can protect nucleic acids and deliver the same into gut mucosal cells. Compositions and methods for the expression of therapeutic nucleic acids in cells of the gut mucosa are provided. Compositions and methods for delivering therapeutic proteins systemically from cells of the gut mucosa are also provided.

Abstract: The invention provides highly concentrated chitosan-nucleic acid polyplex compositions and dispersions, and methods for producing the compositions and dispersions. Methods of mixing the chitosan-nucleic acid polyplexes include an inline mixing of chitosan solution and nucleic acid solution, followed by further concentrating the dispersion of chitosan-nucleic acid polyplexes, optionally with an aggregation inhibitor. Further provided are methods for altering the diameter of chitosan-nucleic acid polyplexes.

Abstract: The invention provides compositions and methods for inhibiting the growth or proliferation of hyperproliferative cells or inducing regression of hyperproliferative cells. More specifically, the invention provides compositions and methods for stimulating glycogen accumulation in target cells (e.g., hyperproliferative cells) in order to increase glycogen to a level that is toxic to the target cell.

Abstract: The invention provides anti-pathogen polypeptide and polynucleotide compositions, and methods of use. In general, the composition of the invention provide a modified pro-polypeptide comprising a pro-domain, a pathogen protease cleavage site, and a cytotoxic domain which can be activated by cleavage of the pro-polypeptide by a protease of an intracellular pathogen. The invention further provides nucleic acids encoding the subject polypeptides, and vectors and host cells comprising the subject nucleic acids. Cleavage of the pro-polypeptide by the pathogen protease results in activation of the cytotoxic domain, and decreases the viability of the pathogen-infected host cell. Methods for using the subject nucleic acids and polypeptides to reduce the viability of a pathogen-infected cell, and for reducing the pathogen load of a subject infected with a pathogen are provided. The invention further provides kits for carrying out the subject methods.