Abstract: Embodiments of the invention provide methods of treating a disorder or disease characterized by cellular proliferation and migration by co-administering a synergistically effective amount of an mTOR inhibitor and a ?-opioid receptor antagonist.

Abstract: Embodiments of the invention provide methods of attenuating, e.g., inhibiting or reducing, cellular proliferation and migration, particularly endothelial cell proliferation and migration, including that associated with angiogenesis, as well as attenuating cancerous tumor growth and metastasis, using opioid antagonists, including, but not limited to, those that are peripherally restricted antagonists.

Abstract: The present invention concerns methods and compositions involving hyaluronan that has been substantially purified to enrich for hyaluronan with a molecular weight above 500 kilodaltons. This hyaluronan can be used for diseases and conditions characterized or caused by increased vascular permeability or angiogenesis. The higher molecular weight hyaluronan restores vascular integrity and inhibits angiogenesis in embodiments of the invention.

Abstract: The invention provides methods of attenuating, e.g., inhibiting or reducing, cellular proliferation and migration, particularly endothelial cell proliferation and migration, including that associated with angiogenesis, using opioid antagonists, including, but not limited to, those that are peripherally restricted antagonists.

Abstract: The invention provides prophylactic and therapeutic methods for administering a ?-opioid receptor antagonist to treat cell barrier diseases and disorders, such as endothelial and epithelial cell barrier diseases and disorders. The diseases or disorders may amenable to the methods include inflammation, such as acute lung injury, atherosclerosis, gut-derived sepsis, a burn injury, neonatal necrotizing enterocolitis, severe neutropenia, toxic colitis, inflammatory bowel disease, enteropathy, transplant rejection, pouchitis, pig belly (pig-bel), Pseudomonas-mediated opthalmologic infection, Pseudomonas-mediated otologic infection and Pseudomonas-mediated cutaneous infection. More generally, epithelial cell barrier disorders are contemplated as amenable to the prophylactic and therapeutic methods. The diseases and disorders may be induced by microbial pathogens, including bacterial pathogens such as Pseudomonas aeruginosa.

Abstract: The invention provides methods of attenuating, e.g., inhibiting or reducing, cellular proliferation and migration, particularly endothelial cell proliferation and migration, including that associated with angiogenesis, using opioid antagonists, including, but not limited to, those that are peripherally restricted antagonists.