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Targeting of Disordered Proteins by Small Molecules in Neurodegenerative Diseases

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Targeting Trafficking in Drug Development

Part of the book series: Handbook of Experimental Pharmacology ((HEP,volume 245))

Abstract

The formation of protein aggregates and inclusions in the brain and spinal cord is a common neuropathological feature of a number of neurodegenerative diseases including Alzheimer’s disease (AD), Parkinson’s disease (PD), amyotrophic lateral sclerosis (ALS), and many others. These are commonly referred as neurodegenerative proteinopathies or protein-misfolding diseases. The main characteristic of protein aggregates in these disorders is the fact that they are enriched in amyloid fibrils. Since protein aggregation is considered to play a central role for the onset of neurodegenerative proteinopathies, research is ongoing to develop strategies aimed at preventing or removing protein aggregation in the brain of affected patients. Numerous studies have shown that small molecule-based approaches may be potentially the most promising for halting protein aggregation in neurodegenerative diseases. Indeed, several of these compounds have been found to interact with intrinsically disordered proteins and promote their clearing in experimental models. This notwithstanding, at present small molecule inhibitors still awaits achievements for clinical translation. Hopefully, if we determine whether the formation of insoluble inclusions is effectively neurotoxic and find a valid biomarker to assess their protein aggregation-inhibitory activity in the human central nervous system, the use of small molecule inhibitors will be considered as a cure for neurodegenerative protein-misfolding diseases.

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Correspondence to Arianna Bellucci .

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Longhena, F., Spano, P., Bellucci, A. (2017). Targeting of Disordered Proteins by Small Molecules in Neurodegenerative Diseases. In: Ulloa-Aguirre, A., Tao, YX. (eds) Targeting Trafficking in Drug Development. Handbook of Experimental Pharmacology, vol 245. Springer, Cham. https://doi.org/10.1007/164_2017_60

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