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Multiple system atrophy: genetic risks and alpha-synuclein mutations.


ABSTRACT: Multiple system atrophy (MSA) is one of the few neurodegenerative disorders where we have a significant understanding of the clinical and pathological manifestations but where the aetiology remains almost completely unknown. Research to overcome this hurdle is gaining momentum through international research collaboration and a series of genetic and molecular discoveries in the last few years, which have advanced our knowledge of this rare synucleinopathy. In MSA, the discovery of ?-synuclein pathology and glial cytoplasmic inclusions remain the most significant findings. Families with certain types of ?-synuclein mutations develop diseases that mimic MSA, and the spectrum of clinical and pathological features in these families suggests a spectrum of severity, from late-onset Parkinson's disease to MSA. Nonetheless, controversies persist, such as the role of common ?-synuclein variants in MSA and whether this disorder shares a common mechanism of spreading pathology with other protein misfolding neurodegenerative diseases. Here, we review these issues, specifically focusing on ?-synuclein mutations.

SUBMITTER: Whittaker HT 

PROVIDER: S-EPMC5710304 | biostudies-other | 2017

REPOSITORIES: biostudies-other

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Multiple system atrophy: genetic risks and alpha-synuclein mutations.

Whittaker Heather T HT   Qui Yichen Y   Bettencourt Conceição C   Houlden Henry H  

F1000Research 20171130


Multiple system atrophy (MSA) is one of the few neurodegenerative disorders where we have a significant understanding of the clinical and pathological manifestations but where the aetiology remains almost completely unknown. Research to overcome this hurdle is gaining momentum through international research collaboration and a series of genetic and molecular discoveries in the last few years, which have advanced our knowledge of this rare synucleinopathy. In MSA, the discovery of α-synuclein pat  ...[more]

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