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- Title
Chemical Genomic Profiling for Identifying Intracellular Targets of Toxicants Producing Parkinson's Disease.
- Authors
Julie Doostzadeh; Ronald W. Davis; Guri N. Giaever; Corey Nislow; James W. Langston
- Abstract
The yeast deletion collection includes ∼4700 strains deleted for both copies of every nonessential gene. This collection is a powerful resource for identifying the cellular pathways that functionally interact with drugs. In the present study, the complete pool of ∼4700 barcoded homozygous deletion strains of Saccharomyces cerevisiae were surveyed to identify genes/pathways interacting with 1-methyl-4-phenylpyridinium (MPP+) and N,N-dimethyl-4-4-bipiridinium (paraquat), neurotoxicants that can produce Parkinson's disease. Each yeast mutant is molecularly “barcoded” the collections can be grown competitively and ranked for sensitivity by microarray hybridization. Analysis data from these screens allowed us to determine that the multivesicular body pathway is an important element of toxicity induced by both MPP+ and paraquat. When yeast genes that when deleted showed sensitivity to MPP+ and paraquat toxicity were analyzed for their homology to human genes, 80% were found to have highly conserved human homologs (with e < 10−8). Future work will address if these human genes may also functionally interact with MPP+ and paraquat toxicity.
- Subjects
PARKINSON'S disease; NEUROTOXIC agents; GENES; SACCHAROMYCES cerevisiae
- Publication
Toxicological Sciences, 2007, Vol 95, Issue 1, p182
- ISSN
1096-6080
- Publication type
Article
- DOI
10.1093/toxsci/kfl131