The present invention relates to lysosomal enzymes modified by use of cell based methods, a compositions comprising a modified lysosomal enzyme, as well as methods for producing a modified lysosomal enzyme and therapeutic use of such modified lysosomal enzyme. In particular, the present disclosure relates to a modified lysosomal enzyme which has low Man6P and low exposed Mannose and high sialic acid content of alpha2,3 type enabling long circulation time and improved uptake into difficult-to-reach organs like heart, kidney and brain.

The present invention provides DNAzymes for reduction in the expression of the target gene implicated in disease. The present invention also provides a platform technology for the use of DNAzymes to create a reduction in gene expression in zebrafish embryos. More particularly, the present invention describes DNAzyme mediated knockdown of Fmr1 mRNA, gcdh mRNA and gba1mRNA in zebrafish embryos. The present invention also provides a method of creating a model of Fragile X syndrome in Zebrafish embryos.

The disclosure relates, in some aspects, to compositions and methods for treatment of diseases associated with aberrant lysosomal function, for example Parkinson's disease and Gaucher disease. In some embodiments, the disclosure provides expression constructs comprising a transgene encoding beta-Glucocerebrosidase (GBA) or a portion thereof, Lysosomal Membrane Protein 2 (LIMP2), Prosaposin, or any combination of the foregoing. In some embodiments, the disclosure provides methods of Parkinson's disease by administering such expression constructs to a subject in need thereof

Described herein are methods for treating a subject having or at risk of developing Parkinson's disease, by administering pluripotent cells that express glucocerebrosidase (GBA) or pluripotent cells that express GBA and one or more M2-promoting agents to the subject. Also disclosed are compositions comprising pluripotent cells expressing GBA, such as pluripotent cells expressing GBA and one or more M2-promoting agents.

The present invention provides, among other things, compositions and methods for CNS delivery of lysosomal enzymes for effective treatment of lysosomal storage diseases. In some embodiments, the present invention includes a stable formulation for direct CNS intrathecal administration comprising an arylsulfatase A (ASA) protein, salt, and a polysorbate surfactant for the treatment of Metachromatic Leukodystrophy Disease.

Provided herein are fusion proteins that comprise an enzyme replacement therapy enzyme and an Fc region, as well as methods of using such proteins to treat a lysosomal storage disorder. Methods for transporting agents across the blood-brain barrier are also provided herein.

Disclosed are compositions and methods of treating a neurodegenerative disease in an individual. The methods disclose administration of an Integrin 41, Very Late Antigen-4 positive neural precursor cell (VLA4+NPC) transfected with a lentivirus overexpressing wild type GCase to an individual having a neurodegenerative disorder. The neurodegenerative disease may include lipid storage diseases, for example Gaucher disease, Parkinson's disease (PD), Dementia with Lewy bodies.

Provided herein are fusion proteins that comprise an enzyme replacement therapy enzyme and an Fc region, as well as methods of using such proteins to treat a lysosomal storage disorder. Methods for transporting agents across the blood-brain barrier are also provided herein.

The disclosure relates to compositions and methods for treatment of diseases associated with aberrant lysosomal function, such as Parkinson's disease and Gaucher disease. The disclosure provides expression constructs comprising a transgene encoding beta-glucocerebrosidase, an inhibitory RNA targeting alpha-Synuclein, or a combination of the foregoing. The disclosure further provides methods of treating Gaucher disease, Parkinson's disease or other synucleinopathies by administering such expression constructs to a subject in need thereof.

Provided herein are integrated continuous biomanufacturing processes for producing a therapeutic protein drug substance. Also provided are systems that are capable of continuously producing a therapeutic protein drug substance.