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Author Spotlight: Understanding the Impact of Pathological Proteins on Axonal Transport in Neurodegenerative Diseases
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Author Spotlight: Understanding the Impact of Pathological Proteins on Axonal Transport in Neurodegenerative Diseases

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Hitchhiking on vesicles: a way to harness age-related proteopathies?

Doryaneh Ahmadpour1,2, Roja Babazadeh1,3, Thomas Nystrom1

  • 1Institute for Biomedicine, Sahlgrenska Academy, Centre for Ageing and Health-AgeCap, University of Gothenburg, Sweden.

The FEBS Journal
|April 27, 2020
PubMed

Insights

Protein quality control (PQC) failure drives neurodegenerative diseases. This study reveals vesicle trafficking, particularly syntaxin 5, is crucial for spatial PQC, directing toxic proteins for clearance and offering therapeutic targets.

Area of Science:

  • Cellular Biology
  • Neuroscience
  • Molecular Biology

Background:

  • Proteopathies and age-related neurodegenerative disorders stem from protein quality control (PQC) failures.
  • Misfolded proteins are managed through refolding, degradation (temporal PQC), or sequestration (spatial PQC).

Purpose of the Study:

  • To investigate the role of vesicle trafficking pathways in spatial PQC.
  • To identify specific molecular players, like syntaxin 5, involved in directing misfolded proteins for cellular clearance.

Main Methods:

  • Discussion of existing literature on vesicle trafficking and spatial PQC mechanisms.
  • Focus on the function of syntaxin 5 in protein sequestration.

Main Results:

  • Vesicle trafficking pathways, with syntaxin 5 as a key regulator, are integral to spatial PQC.
  • Syntaxin 5 directs misfolded proteins to vacuole and mitochondrial surfaces for detoxification and clearance.

Conclusions:

  • Enhancing vesicle trafficking genetically improves spatial PQC and cellular resistance to misfolded proteins.
  • Regulators of vesicle trafficking represent potential therapeutic targets for age-related neurological disorders.
Keywords:
aggregate clearanceaginginclusion body formationmitochondrianeurodegenerative disordersorganelle contact sitesprotein quality controlsyntaxin 5vacuolevesicle trafficking

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