Described are improved uricase sequences having beneficial effects and methods of treating patients suffering from hyperuricemia.

A composition for uric acid decomposition using gold nanoparticles is disclosed.

The composition for uric acid decomposition in accordance with an exemplary embodiment of the present invention is characterized by including urate oxidase (UOX), gold nanoparticles and a buffer.

Disclosed herein are compositions and methods for reducing the antigenicity of molecules. The antigenicity of a molecule may be reduced or eliminated by conjugating at least one branched polymer to the molecule to form a molecule-polymer conjugate. The branched polymer may include a backbone and a plurality of side chains, each side chain covalently attached to the backbone.

Disclosed herein are compositions and methods for reducing the antigenicity of molecules, wherein the molecule comprises a uricase. The antigenicity of a molecule may be reduced or eliminated by conjugating at least one branched polymer to the molecule to form a molecule-polymer conjugate. The branched polymer may include a backbone and a plurality of side chains, each side chain covalently attached to the backbone.

Genetically modified proteins with uricolytic activity are described. Proteins comprising truncated urate oxidases and methods for producing them, including PEGylated proteins comprising truncated urate oxidase are described.

Provided herein are materials and methods that include utilizing atom transfer radical polymerization (ATRP) initiator molecules that maintain a positive charge during biomacro-initiator synthesis.

Methods and kits for predicting infusion reaction risk and antibody-mediated loss of response during intravenous PEGylated uricase therapy in gout patients is provided. Routine SUA monitoring can be used to identify patients receiving PEGylated uricase who may no longer benefit from treatment and who are at greater risk for infusion reactions.

Provided herein are methods and compositions, such as kits, related to compositions comprising synthetic nanocarriers comprising an immunosuppressant and compositions comprising an uricase and a composition comprising an anti-inflammatory therapeutic. Also provided herein are methods and compositions for the treatment of subjects in need of administration or treatment with the uricase.

A mutant-type uricase, PEG modified mutant-type uricase, and application thereof. The mutant-type uricase has a cysteine residue introduced by recombination, the cysteine residue is located at an inactive region of the uricase, and one or more PEGs are coupled to the mutant-type uricase. The resulting PEGylated mutant-type uricase has characteristics of a half-life extension, product uniformity, and stable enzyme activity. Therefore, the present invention has a wide future application range.

The present invention relates to a pharmaceutical composition for treating gout and a gout treatment kit. According to an embodiment of the present invention, a pharmaceutical composition for treating gout comprising a probe containing at least one or more peptides specifically coupled to a monosodium urate (MSU) crystals and a first enzyme which is coupled to the probe and reacts with the target MSU crystal coupled to the probe or urea of surrounding joint fluid to remove the target MSU crystal is provided.