The present invention provides engineered tyrosine ammonia-lyase (TAL) polypeptides and compositions thereof. In some embodiments, the engineered TAL polypeptides have been optimized to provide enhanced catalytic activity while reducing sensitivity to proteolysis and increasing tolerance to acidic pH levels. The invention also provides methods for utilization of the compositions comprising the engineered TAL polypeptides for therapeutic and industrial purposes.

The present invention provides engineered tyrosine ammonia-lyase (TAL) polypeptides and compositions thereof. In some embodiments, the engineered TAL polypeptides have been optimized to provide enhanced catalytic activity while reducing sensitivity to proteolysis and increasing tolerance to acidic pH levels. The invention also provides methods for utilization of the compositions comprising the engineered TAL polypeptides for therapeutic and industrial purposes.

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.

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.

Shielding enzymes are made by modifying the enzyme surface with silica precursors and then depositing silica to a desired thickness while retaining biological activity of the enzyme.

Shielding enzymes are made by modifying the enzyme surface with silica precursors and then depositing silica to a desired thickness while retaining biological activity of the enzyme.

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 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 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 and a pharmaceutical composition for the treatment of the NDO comprising the viral expression vector carrying a transcription cassette that harbors transgene(s) inhibiting/silencing neurotransmission or synaptic transmission of afferent neurons.