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Yeast protein breaks up amyloid fibrils and disease protein clumps differently
Date:11/19/2012

Hsp104 broke up various amyloid fibrils formed by proteins connected to Alzheimer's disease (tau and Ab42), Parkinson's disease (α-synuclein), Huntington's disease (polyglutamine), and even type II diabetes (amylin).

The bad news is that animals do not harbor their own version of Hsp104 and they do not appear to have the protein machinery to break up amyloid clumps as rapidly. But Shorter views this as a possible therapeutic opportunity: "We want to introduce Hsp104 transiently as a therapeutic clump buster and optimize Hsp104 for each type of disease protein." He is heartened by preclinical evidence that Hsp104 rescues neurodegeneration caused by α-synuclein misfolding in a rat model of Parkinson's disease. His lab is now scanning yeast cells to look for the most useful forms of Hsp104.


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Contact: Karen Kreeger
karen.kreeger@uphs.upenn.edu
215-349-5658
University of Pennsylvania School of Medicine
Source:Eurekalert

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