Reference: Kim M, et al. (2008) Impairment of microtubule system increases alpha-synuclein aggregation and toxicity. Biochem Biophys Res Commun 365(4):628-35

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Abstract


The accumulation of fibrillar form of alpha-synuclein (alpha-syn) has been implicated in Parkinson's disease. Here we show that tubulin can stimulate alpha-syn fibrillization in vitro in different ways depending on its oligomeric status. The physiological significance of tubulin-seeded alpha-syn fibrillization is demonstrated by using Saccharomyces cerevisiae as a model system. Perturbation of microtubule system either by treating benomyl that inhibits microtubule assembly or by deleting genes involved in microtubule biogenesis, stimulates alpha-syn aggregation and toxicity. These results suggest that impairment of the microtubule system may act as a risk factor deteriorating the alpha-syn-mediated neurodegeneration by increasing the chance of tubulin-seeded alpha-syn aggregation.

Reference Type
Journal Article | Research Support, Non-U.S. Gov't
Authors
Kim M, Jung W, Lee IH, Bhak G, Paik SR, Hahn JS
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