Mini-Review: The MSA transcriptome

Area of Science:

• Neuroscience
• Genomics
• Molecular Biology

Background:

• Multiple system atrophy (MSA) is a rapidly progressive neurodegenerative disorder.
• It presents as atypical parkinsonism with autonomic dysfunction, posing diagnostic challenges.
• Current treatments are limited, and the molecular pathogenesis remains largely unknown.

Purpose of the Study:

• To review and synthesize findings from transcriptomic studies in MSA.
• To identify consistent molecular and transcriptive changes associated with MSA pathogenesis.
• To highlight potential diagnostic biomarker candidates and challenges in data reliability.

Main Methods:

• Comprehensive literature search of transcriptomic studies in MSA.
• Analysis and comparison of reported transcriptive and post-transcriptive changes.
• Focus on identifying consensual findings across multiple studies.

Main Results:

• Transcriptomic studies reveal associations between MSA pathogenesis and inflammation, mitochondrial dysfunction, and autophagy.
• Pathways related to prion and Alzheimer diseases are also implicated.
• Several potential diagnostic biomarker candidates have been identified, though cross-validation is limited.

Conclusions:

• Transcriptomic data offers insights into MSA's molecular mechanisms, including inflammation and cellular stress pathways.
• Consensus findings are crucial for advancing understanding and developing reliable biomarkers.
• Improved cross-validation of transcriptomic studies is needed for clinical applicability in diagnosing MSA.