Abstract: Provided herein are monoclonal antibodies that recognize, bind to, and block interactions of other molecules with AGR2 and C4.4A. Also provided herein are methods of using anti-AGR2 and anti-C4.4A antibodies to treat cancer.

Abstract: Provided herein are compositions and kits comprising a therapeutic agent linked to a cleavable substrate, wherein the cleavable substrate is capable of being cleaved by cathepsin E. Also provided are methods of treating one or more symptoms of a disease or disorder characterized by expression of cathepsin E in a subject and methods of eliminating a cancer cell characterized by expression of cathepsin E using the provided compositions and kits. Further provided herein are methods of detecting the presence of a cancer cell or detecting a cathepsin E expressing cell using a photosensitizer linked to a cleavable substrate, wherein the cleavable substrate is capable of being cleaved by cathepsin E.

Abstract: Provided herein are polypeptides that are selectively cleaved by cathepsin E. Also provided are methods of detecting cathepsin E. The methods comprise contacting cathepsin E with the polypeptides provided herein and detecting fluorescence. Further provided are methods of diagnosing cancer or pre-cancerous conditions in a subject. Also provided herein is a multilayered nanoparticle or a composition comprising the multilayer nanoparticle, wherein the multilayered nanoparticle comprises a negatively charged nanoparticle core or capsule coated with alternating positive and negative layers. Optionally, the positive layer comprises a positively charged protease degradable polypeptide. Optionally, the negative layer comprises a negatively charged therapeutic agent or a therapeutic agent and a means for providing the agent with a negative charge. For example, optionally, the therapeutic agent is linked to a negatively charged polymer.

Abstract: Provided herein are compositions and kits comprising a therapeutic agent linked to a cleavable substrate, wherein the cleavable substrate is capable of being cleaved by cathepsin E. Also provided are methods of treating one or more symptoms of a disease or disorder characterized by expression of cathepsin E in a subject and methods of eliminating a cancer cell characterized by expression of cathepsin E using the provided compositions and kits. Further provided herein are methods of detecting the presence of a cancer cell or detecting a cathepsin E expressing cell using a photosensitizer linked to a cleavable substrate, wherein the cleavable substrate is capable of being cleaved by cathepsin E.

Abstract: A method of inhibiting an interaction between a S100 protein and the receptor for advanced glycation end-products is provided comprising administering to a subject a therapeutically effective amount of cromolyn, C5, or salt, hydrate, or solvate thereof. In some embodiments, the S100 protein is S100P. In some embodiments, the S100 protein is S100P. In addition, the present invention provides a method of treating a cancer comprising administering to a mammal a therapeutically effective amount of cromolyn, C5, or salt, hydrate, or solvate thereof. Additional methods are also provided.

Abstract: A method of inhibiting an interaction between a S100 protein and the receptor for advanced glycation end-products is provided comprising administering to a subject a therapeutically effective amount of cromolyn, C5, and/or other analogs, or salts, hydrates, or solvates thereof. In addition, provided herein are methods of treating a cancer comprising administering to a mammal a therapeutically effective amount of cromolyn, C5, and/or other analogs, or salts, hydrates, or solvates thereof.

Abstract: Novel peptides are useful as antagonists of RAGE and may be used to treat cancer, inflammation, diabetes and arthritis through the administration of a therapeutically effective amount of the peptide to a subject in need thereof.

Abstract: A method of inhibiting an interaction between a S100 protein and the receptor for advanced glycation end-products is provided comprising administering to a subject a therapeutically effective amount of cromolyn, C5, or salt, hydrate, or solvate thereof. In some embodiments, the S100 protein is S100P. In some embodiments, the S100 protein is S100P. In addition, the present invention provides a method of treating a cancer comprising administering to a mammal a therapeutically effective amount of cromolyn, C5, or salt, hydrate, or solvate thereof. Additional methods are also provided.

Abstract: A method of inhibiting an interaction between a S100 protein and the receptor for advanced glycation end-products is provided comprising administering to a subject a therapeutically effective amount of cromolyn, C5, or salt, hydrate, or solvate thereof. In some embodiments, the S100 protein is S100P. In some embodiments, the S100 protein is S100P. In addition, the present invention provides a method of treating a cancer comprising administering to a mammal a therapeutically effective amount of cromolyn, C5, or salt, hydrate, or solvate thereof. Additional methods are also provided.