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Related Experiment Video

Updated: Jan 25, 2026

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Alpha-Synuclein RNA Expression is Increased in Major Depression.

Andrea Rotter1, Bernd Lenz2, Ruben Pitsch3

  • 1Department of Psychiatry and Psychotherapy, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), D-91054 Erlangen, Germany. andrea.rotter-neubert@Landratsamt-Roth.de.

International Journal of Molecular Sciences
|April 28, 2019
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Summary

Alpha-synuclein (SNCA) mRNA expression is elevated in major depressive disorder (MDD) patients, correlating with depression severity. This suggests SNCA may serve as a potential biomarker for MDD.

Keywords:
Hamilton Scale of DepressionSNCAalpha-synucleinmajor depression

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Area of Science:

  • Neuroscience
  • Psychiatry
  • Molecular Biology

Background:

  • Alpha-synuclein (SNCA) is a key protein implicated in neurodegenerative disorders.
  • Abnormal SNCA aggregation in Lewy bodies is a hallmark of Parkinson's disease (PD).
  • Major depressive disorder (MDD) frequently co-occurs with PD.

Purpose of the Study:

  • To investigate the role of SNCA in major depressive disorder (MDD).
  • To analyze SNCA mRNA expression levels in MDD patients.
  • To explore SNCA as a potential biomarker for MDD.

Main Methods:

  • Analysis of SNCA mRNA expression in peripheral blood cells.
  • Comparison between MDD patients and healthy controls.
  • Correlation of SNCA mRNA levels with depression severity using psychometric assessments.

Main Results:

  • Significantly increased SNCA mRNA expression was observed in severely depressed patients.
  • SNCA mRNA expression positively correlated with depression severity.
  • SNCA levels in peripheral blood may reflect disease state in MDD.

Conclusions:

  • SNCA mRNA expression is altered in major depressive disorder.
  • SNCA represents a potential biomarker for MDD.
  • Further research into SNCA's role in depression is warranted.