Disclosed herein are methods of delivering an agent to a subject. Further disclosed herein are methods of treating a disease or disorder in a subject. The methods may include administering to the subject a chondroitinase polypeptide or a polynucleotide encoding a chondroitinase polypeptide in an amount sufficient to degrade glycosaminoglycans, and administering to the subject the agent. The methods may further include administering a hyaluronidase polypeptide or a polynucleotide encoding a hyaluronidase.

There are provided a pharmaceutical composition containing a lyophilized saccharide-degrading enzyme having excellent titer, and a package containing the pharmaceutical composition. The pharmaceutical composition is a unit dose formulation containing a lyophilized saccharide-degrading enzyme with a titer of not less than 0.3 unit/μg as an active ingredient, and containing the saccharide-degrading enzyme in an amount of not less than 2 μg and not more than 8 μg.

The present invention provides pharmaceutical compositions comprising membrane vesicles, including extracellular vesicles including those referred to as exosomes, loaded with an exogenous Phosphatase and tensin homolog (PTEN) inhibitor. Methods of treating neurological diseases, disorders or conditions using the extracellular vesicles are provided. Isolated extracellular vesicles loaded with an exogenous Phosphatase and tensin homolog (PTEN) inhibitor are provided as well.

The present invention provides a method for purifying Chondroitinase ABC (ChABC). The present method includes using a heparin-immobilized affinity chromatography column, and through chromatography method obtaining a purified ChABC from a matrix containing the ChABC. The present method is capable of obtaining ChABC in high purity with the advantages of simplicity in preparation and high yield.

A method of treating or preventing a disorder, or a complication of a disorder, of an eye of a subject comprising contacting a vitreous and/or aqueous humor with a composition comprising a truncated form of plasmin comprising a catalytic domain of plasmin (TPCD). TPCDs include, but are not limited to, miniplasmin, microplasmin and derivatives and variants thereof. The methods of the invention can be used to reduce the viscosity of the vitreous, liquefy the vitreous, induce posterior vitreous detachment, reduce hemorrhagic blood from the eye, clear or reduce materials toxic to the eye, clear or reduce intraocular foreign substances from the eye, increase diffusion of a composition administered to an eye, reduce extraretinal neovascularization and any combinations thereof. The method can be used in the absence of, or as an adjunct to, vitrectomy.

The present invention provides a therapeutic agent for disc herniation, which has extremely few adverse side effects, can achieve a prolonged pain-ameliorating effect when administered in only a single dose, and can exhibit a high therapeutic effect and high safety in clinical applications. The present invention relates to a therapeutic agent for disc herniation, which is characterized by containing chondroitinase ABC as an active ingredient and being administered in such a manner that the ingredient can be administered into a human disk in an amount of 1-8 units per disk.

A pharmaceutical composition containing a lyophilized saccharide-degrading enzyme having excellent titer, and a package containing the pharmaceutical composition. The pharmaceutical composition is a unit dose formulation containing a lyophilized saccharide-degrading enzyme with a titer of not less than 0.3 unit/μg as an active ingredient, and contains the saccharide-degrading enzyme in an amount of not less than 2 μg and not more than 6 μg.

Described herein are targeted ChABC fusion proteins, complexes thereof, and uses thereof. The targeted ChABC fusion proteins can include a ChABC polypeptide that can be linked to a Gal-3 polypeptide. Monomer targeted ChABC fusion proteins can form homogeneous or heterogeneous complexes. The targeted ChABC fusion proteins and complexes thereof can be formulated as pharmaceutical formulations. The targeted ChABC fusion proteins, complexes thereof, and formulations thereof can be administered to a subject in need thereof.

Disclosed herein are compositions and methods for treating and preventing neurodegenerative diseases, such as Alzheimer's disease. In some embodiments, the composition comprises a peptide that disrupts the binding between PTPσ and APP, preventing β-amyloidogenic processing of APP without affecting other major substrates of β- and γ-secretases. Alternatively, in some embodiments, an antibody or a fragment of an antibody against PTPσ or APP may be used to disrupt the binding between PTPσ and APP. In some embodiments, the composition comprises compounds or enzymes, which restore perineuronal balance of PTPσ ligands CS and HS, thereby preventing abnormally increased β-amyloidogenic processing of APP. Compositions and methods disclosed herein can be used in combination to treat and prevent neurodegenerative diseases.

The present invention provides a therapeutic agent for disc herniation, which has extremely few adverse side effects, can achieve a prolonged pain-ameliorating effect when administered in only a single dose, and can exhibit a high therapeutic effect and high safety in clinical applications. The present invention relates to a therapeutic agent for disc herniation, which is characterized by containing chondroitinase ABC as an active ingredient and being administered in such a manner that the ingredient can be administered into a human disk in an amount of 1-8 units per disk.