Compositions and kits comprising a tyrosine hydroxylase inhibitor and an anticancer agent that is chemically bonded to, or physically associated with, the tyrosine hydroxylase inhibitor are provided. Also provided are methods for reducing cell proliferation in a subject comprising administering to a subject in need thereof a composition comprising a tyrosine hydroxylase inhibitor and an anticancer agent that is chemically bonded to, or physically associated with, the tyrosine hydroxylase inhibitor.

The present invention provides compositions and methods for treating a disease treatable by asparagine depletion in a human subject comprising dosing a human subject with L-asparaginase.

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.

Peptides that specifically bind erythrocytes are described. These are provided as peptidic ligands having sequences that specifically bind, or as antibodies or fragments thereof that provide specific binding, to erythrocytes. The peptides may be prepared as molecular fusions with therapeutic agents, tolerizing antigens, or targeting peptides. Immunotolerance may be created by use of the fusions and choice of an antigen on a substance for which tolerance is desired.

A drug delivery system composition includes Corynebacterium sp. bacteria or Corynebacterium sp. bacteria-derived minicells. The drug delivery system composition is safer for use in human bodies than other bacteria (for example, Escherichia coli (E. coli), Salmonella sp. bacteria, Bacillus sp. bacteria, or the like), or other bacteria-derived drug delivery system. When an anti-cancer drug protein expression construct (protein expression recombinant vector or the like) is included, over-expression of an anti-cancer drug protein, effective protein expression control in vivo, and targeting technique using expression of targeting factor. The drug delivery system composition enables stable drug delivery in vivo, thereby maximizing anti-cancer therapeutic effects.

Disclosed are improved compositions and methods for decreasing blood glucagon levels. As disclosed herein, L-glutamine is a selective stimulator of α-cell proliferation generated when glucagon signaling is interrupted. Therefore, disclosed is a method for treating a subject with hyperglucagonemia, e.g., a subject with diabetes, that involves administering to the subject a composition comprising an L-glutamine inhibitor in an amount effective to decrease blood glucagon levels.

The present invention relates to the treatment of respiratory viral infections, including those caused by coronaviruses.

The present invention relates to asparaginase variants. The present invention also relates to polynucleotides encoding the variants; nucleic acid constructs, vectors, and host cells comprising the polynucleotides; and methods of using the variants. The invention further relates to a process of producing a fermentation product, comprising: liquefying a starch-containing material to dextrins with an alpha-amylase in the presence of an asparaginase of the invention; saccharifying the dextrins to a sugar with a glucoamylase; and fermenting the sugar using a fermenting organism.

The invention relates to methods of treating diseases with L-asparaginase.

The disclosure provides a modified protein that is a combination of (i) an L-asparaginase and (ii) one or more (poly)peptide(s), wherein the (poly)peptide consists solely of proline and alanine amino acid residues, and methods of preparation and use thereof.