Abstract: Disclosed are yeast cells expressing a polypeptide comprising a signal sequence and a human ApoE protein. In some embodiments the polypeptide comprises ApoE2. In some embodiments the polypeptide comprises ApoE3. In some embodiments the polypeptide comprises ApoE4. Also disclosed are methods of screening yeast cells to identify compounds that prevent or suppress Apo-induced toxicity. Compounds identified by such screens can be used to treat or prevent neurodegenerative disorders such as Alzheimer's disease. Also disclosed are methods of screening yeast cells to identify genetic suppressors or enhancers of ApoE-induced toxicity. Also disclosed are genetic suppressors or enhancers of ApoE-induced toxicity identified using the methods, and human homologs thereof. Also disclosed are methods of identifying compounds that modulate expression or activity of genetic modifiers of ApoE-induced toxicity.

Abstract: In some aspects, a cross-species platform useful for drug discovery in neurodegenerative diseases is described.

Abstract: Disclosed are compositions and methods for modulating expression of genes that function at the step of ER to Golgi trafficking. Compounds that modulate expression of these genes or activity of the encoded proteins can be used to inhibit alpha-synuclein mediated toxicity and used to treat or prevent synucleinopathies such as Parkinson's disease. Also disclosed are methods of identifying inhibitors of alpha-synuclein mediated toxicity.

Abstract: Disclosed are yeast cells expressing TAR DNA-binding protein 43 (TDP-43) and methods of screening yeast cells to identify compounds that prevent or suppress TDP-43-induced toxicity, compounds that inhibit the formation or maintenance of cytoplasmic inclusions of TDP-43, genetic suppressors or enhancers of TDP-43-induced toxicity, and genetic suppressors or enhancers of the formation or maintenance of cytoplasmic inclusions of TDP-43. Compounds identified by such screens can be used to treat or prevent TDP-43 proteinopathies such as frontotemporal lobar degeneration or amyotrophic lateral sclerosis.

Abstract: Disclosed are yeast cells expressing a polypeptide comprising a signal sequence and a human amyloid beta protein. Also disclosed are methods of screening yeast cells to identify compounds that prevent or suppress amyloid beta-induced toxicity and genetic suppressors or enhancers of amyloid beta-induced toxicity. Compounds identified by such screens can be used to treat or prevent neurodegenerative disorders such as Alzheimer's disease.

Abstract: Disclosed are yeast cells expressing TAR DNA-binding protein 43 (TDP-43) and methods of screening yeast cells to identify compounds that prevent or suppress TDP-43-induced toxicity, compounds that inhibit the formation or maintenance of cytoplasmic inclusions of TDP-43, genetic suppressors or enhancers of TDP-43-induced toxicity, and genetic suppressors or enhancers of the formation or maintenance of cytoplasmic inclusions of TDP-43. Compounds identified by such screens can be used to treat or prevent TDP-43 proteinopathies such as frontotemporal lobar degeneration or amyotrophic lateral sclerosis.

Abstract: Disclosed are yeast cells expressing TAR DNA-binding protein 43 (TDP-43) and methods of screening yeast cells to identify compounds that prevent or suppress TDP-43-induced toxicity, compounds that inhibit the formation or maintenance of cytoplasmic inclusions of TDP-43, genetic suppressors or enhancers of TDP-43-induced toxicity, and genetic suppressors or enhancers of the formation or maintenance of cytoplasmic inclusions of TDP-43. Compounds identified by such screens can be used to treat or prevent TDP-43 proteinopathies such as frontotemporal lobar degeneration or amyotrophic lateral sclerosis.

Abstract: The present invention provides novel compounds (e.g., compounds of Formula (I)), and pharmaceutically acceptable salts, solvates, hydrate, polymorphs, co-crystals, tautomers, stereoisomers, isotopically labeled derivatives, prodrugs, and compositions thereof. Also provided are methods and kits comprising the inventive Compounds, or compositions thereof, for treating and/or preventing a fungal or protozoan infection, inhibiting the activity of a fungal or protozoan enzyme, killing a fungus or protozoan, or inhibiting the growth of a fungus or protozoan. The fungus may be a Candida species, Sacchawmyces species, or other pathogenic fungal species. The compounds of the invention may inhibit the activity of fungal or protozoan mitochondrial phosphate carrier protein.

Abstract: Disclosed are genes that, when overexpressed in cells expressing alpha-synuclein, either suppress or enhance alpha-synuclein mediated cellular toxicity. Compounds that modulate expression of these genes or activity of the encoded proteins can be used to inhibit alpha-synuclein mediated toxicity and used to treat or prevent synucleinopathies such as Parkinson's disease. Also disclosed are methods of identifying inhibitors of alpha-synuclein mediated toxicity.

Abstract: Disclosed are genes that, when overexpressed in cells expressing alpha-synuclein, either suppress or enhance alpha-synuclein mediated cellular toxicity. Compounds that modulate expression of these genes or activity of the encoded proteins can be used to inhibit alpha-synuclein mediated toxicity and used to treat or prevent synucleinopathies such as Parkinson's disease. Also disclosed are methods of identifying inhibitors of alpha-synuclein mediated toxicity.

Abstract: Disclosed are yeast cells expressing a polypeptide comprising a signal sequence and a human amyloid beta protein. Also disclosed are methods of screening yeast cells to identify compounds that prevent or suppress amyloid beta-induced toxicity and genetic suppressors or enhancers of amyloid beta-induced toxicity. Compounds identified by such screens can be used to treat or prevent neurodegenerative disorders such as Alzheimer's disease.

Abstract: Disclosed are yeast expression constructs encoding a polypeptide containing a signal sequence, a Golgi-directing pro sequence, and a human amyloid beta protein, and mammalian expression constructs encoding a polypeptide containing a selected signal sequence and a human amyloid beta protein. Also disclosed are methods of screening cells to identify compounds that prevent or suppress amyloid beta-induced toxicity and genetic suppressors or enhancers of amyloid beta-induced toxicity. Compounds identified by such screens can be used to treat or prevent neurodegenerative disorders such as Alzheimer's disease.

Abstract: Disclosed are yeast cells expressing TAR DNA-binding protein 43 (TDP-43) and methods of screening yeast cells to identify compounds that prevent or suppress TDP-43-induced toxicity, compounds that inhibit the formation or maintenance of cytoplasmic inclusions of TDP-43, genetic suppressors or enhancers of TDP-43-induced toxicity, and genetic suppressors or enhancers of the formation or maintenance of cytoplasmic inclusions of TDP-43. Compounds identified by such screens can be used to treat or prevent TDP-43 proteinopathies such as frontotemporal lobar degeneration or amyotrophic lateral sclerosis.

Abstract: The present invention provides novel compounds of Formula (I), and pharmaceutically acceptable salts, solvates, hydrates, polymorphs, co-crystals, tautomers, stereoisomers, isotopically labeled derivatives, prodrugs, and pharmaceutical compositions thereof. The present invention also provides methods and kits using the inventive compounds and pharmaceutical compositions for treating and/or preventing diseases associated with protein aggregation, such as amyloidoses (e.g., Parkinson's disease and Alzheimer's disease), treating and/or preventing neurodegenerative diseases, treating and/or preventing diseases associated with Tar DNA binding protein 43 kDa, reducing or preventing protein aggregation, and/or modulating E3 ubiquitin ligase in a subject in need thereof.

Abstract: The present invention provides novel compounds (e.g., compounds of Formula (I)), and pharmaceutically acceptable salts, solvates, hydrates, polymorphs, co-crystals, tautomers, stereoisomers, isotopically labeled derivatives, prodrugs, and compositions thereof. Also provided are methods and kits comprising the inventive compounds, or compositions thereof, for treating and/or preventing a fungal or protozoan infection, inhibiting the activity of a fungal or protozoan enzyme, killing a fungus or protozoon, or inhibiting the growth of a fungus or protozoon. The fungus may be a Candida species, Aspergillus species, or other pathogenic fungal species. The compounds of the invention may inhibit the activity of fungal or protozoan cytochrome b and/or fungal or protozoan Hsp90. The present invention also provides synthetic methods of the inventive compounds.

Abstract: Disclosed are yeast cells expressing TAR DNA-binding protein 43 (TDP-43) and methods of screening yeast cells to identify compounds that prevent or suppress TDP-43-induced toxicity, compounds that inhibit the formation or maintenance of cytoplasmic inclusions of TDP-43, genetic suppressors or enhancers of TDP-43-induced toxicity, and genetic suppressors or enhancers of the formation or maintenance of cytoplasmic inclusions of TDP-43. Compounds identified by such screens can be used to treat or prevent TDP-43 proteinopathies such as frontotemporal lobar degeneration or amyotrophic lateral sclerosis.

Abstract: Disclosed are yeast cells expressing a polypeptide comprising a signal sequence and a human amyloid beta protein. Also disclosed are methods of screening yeast cells to identify compounds that prevent or suppress amyloid beta-induced toxicity and genetic suppressors or enhancers of amyloid beta-induced toxicity. Compounds identified by such screens can be used to treat or prevent neurodegenerative disorders such as Alzheimer's disease.

Abstract: In some aspects, a cross-species platform useful for drug discovery in neurodegenerative diseases is described.

Abstract: The present invention provides a novel class of withanolides that have been isolated from W. somnifera under aeroponic conditions or produced semi-synthetically from withanolide natural products. The invention also provides pharmaceutical compositions thereof and methods for using the same in proliferative diseases, neurodegenerative diseases, autoimmune, and inflammatory diseases.

Abstract: The present invention provides compounds of Formula I, pharmaceutically acceptable salts thereof, and pharmaceutical compositions thereof. Compounds of the present invention are useful for inhibiting fungal or parasitic growth. The compounds are useful as inhibitors of glycosylphosphatidylinositol (GPI)-anchor biosynthesis, in particular, as inhibitors of fungal Gwt1 activity. The present invention further provides methods of using the compounds described herein for treating fungal or parasitic infections. The compounds can also be used as biological probes to study the effects of inhibiting Gwt1 activity.