Yeast-based screening of natural product extracts results in the identification of prion inhibitors from a marine sponge

Prion
Laurence K JenningsAnthony R Carroll

Abstract

One of the major medical challenges of the twenty-first century is the treatment of incurable and fatal neurodegenerative disorders caused by misfolded prion proteins. Since the discovery of these diseases a number of studies have been conducted to identify small molecules for their treatment, however to date no curative treatment is available. These studies can be highly expensive and time consuming, but more recent experimental approaches indicate a significant application for yeast prions in these studies. We therefore used yeast prions to optimize previous high-throughput methods for the cheaper, easier and more rapid screening of natural extracts. Through this approach we aimed to identify natural yeast-prion inhibitors that could be useful in the development of novel treatment strategies for neurodegenerative disorders. We screened 500 marine invertebrate extracts from temperate waters in Australia allowing the identification of yeast-prion inhibiting extracts. Through the bioassay-driven chemical investigation of an active Suberites sponge extract, a group of bromotyrosine derivatives were identified as potent yeast-prion inhibitors. This study outlines the importance of natural products and yeast prions as a first-stage...Continue Reading

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Citations

Sep 22, 2019·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Tatiana A ChernovaKeith D Wilkinson
Oct 18, 2019·Fungal Genetics and Biology : FG & B·Takao Ishikawa, Kamil Lisiecki
Dec 4, 2020·Journal of Natural Products·Laurence K JenningsAnthony R Carroll
Aug 23, 2019·Journal of Natural Products·Laurence K JenningsAnthony R Carroll

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Methods Mentioned

BETA
reverse-phase chromatography
nuclear magnetic resonance
NMR

Software Mentioned

ImageJ

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