Abstract: Pharmaceutical compositions, each consisting of a cell-permeable fusion protein conjugate of a polypeptidic cell-membrane transport moiety and a Clostridium botulinum C3 exotransferase unit, or a functional analog thereof, are provided. The compositions are useful to prevent or inhibit uncontrolled proliferation, spreading, and migration of a metastatic neoplastic cell of a cancer in a mammal. The compositions can each effect or arrest combination of two or more of tumor cell proliferation, migration, angiogenesis, and metalloproteinase secretion.

Abstract: There is provided a method of prevention or inhibition of uncontrolled proliferation of a cancer comprising administration to a mammal of a therapeutically effective amount of a pharmaceutical composition comprising a cell-permeable fusion protein conjugate comprising a polypeptidic cell-membrane transport moiety and a Clostridium botulinum C3 exotransferase unit or a functional analog thereof.

Abstract: The Rho family GTPases regulates axon growth and regeneration. Inactivation of Rho with C3, a toxin from Clostridium botulinum, can stimulate regeneration and sprouting of injured axons. The present invention provides novel chimeric C3-like Rho antagonists. The invention further provides evidence that these compounds promote repair when applied to the injured mammalian central nervous system, such as the retina. The present invention provide agents which are able to diffuse readily and therefore can promote repair for neurodegenerative disease of the eye, such as macular degeneration. The present invention further provides methods of treating macular degeneration, methods of inhibiting or reducing the rate of subretinal neovascularization and proliferation of neovascular tissue and methods of protecting retinal photoreceptor cell death.

Abstract: Pharmaceutical compositions, each consisting of a cell-permeable fusion protein conjugate of a polypeptidic cell-membrane transport moiety and a Clostridium botulinum C3 exotransferase unit, or a functional analog thereof, are provided. The compositions are useful to prevent or inhibit uncontrolled proliferation, spreading, and migration of a metastatic neoplastic cell of a cancer in a mammal. The compositions can each effect or arrest combination of two or more of tumor cell proliferation, migration, angiogenesis, and metalloproteinase secretion.

Abstract: The Rho family GTPases regulates axon growth and regeneration. Inactivation of Rho with C3, a toxin from Clostridium botulinum, can stimulate regeneration and sprouting of injured axons. The present invention provides novel chimeric C3-like Rho antagonists. These new antagonists are a significant improvement over C3 compounds because they are 3-4 orders of magnitude more potent to stimulate axon growth on inhibitory substrates than recombinant C3. The invention further provides evidence that these compounds promote repair when applied to the injured mammalian central nervous system.