ZFYVE26/SPASTIZIN: A close link between complicated hereditary spastic paraparesis and autophagy

Chiara Vantaggiato, Emilio Clementi, Maria Teresa Bassi

Research output: Contribution to journalArticle

Abstract

Defective autophagy is associated with neurodegenerative disorders including Alzheimer, Parkinson and Huntington diseases, amyotrophic lateral sclerosis and SCA (spinocerebellar ataxias). Autophagy defects were detected also in SPG49, a complicated form of hereditary spastic paraparesis (cHSP) associated with mutations in the TECPR2 gene, suggesting a role of autophagy also in this heterogeneous group of neurodegenerative diseases. We recently found defective autophagy in SPG15, another HSP subtype associated with mutations in the ZFYVE26/SPG15 gene. Patient-derived cells (fibroblasts/ lymphoblasts) carrying different ZFYVE26 mutations show accumulation of immature autophagosomes and increased MAP1LC3B-II and SQSTM1/p62 levels. These findings indicate that ZFYVE26 is a key determinant of autophagosome maturation, which is impaired when the protein is defective or absent. Replication of these findings in primary neurons supports the relevance of defective autophagy in SPG15-related neurodegeneration.

Original languageEnglish
Pages (from-to)374-375
Number of pages2
JournalAutophagy
Volume10
Issue number2
DOIs
Publication statusPublished - Feb 2014

Keywords

  • Autophagosome maturation
  • Autophagy
  • BECN1/Beclin 1
  • Complicated hereditary spastic paraparesis
  • SPG15
  • ZFYVE26/SPASTIZIN

ASJC Scopus subject areas

  • Cell Biology
  • Molecular Biology

Fingerprint Dive into the research topics of 'ZFYVE26/SPASTIZIN: A close link between complicated hereditary spastic paraparesis and autophagy'. Together they form a unique fingerprint.

  • Cite this