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 PMID:25855184  

α-Synuclein-independent histopathological and motor deficits in mice lacking the endolysosomal Parkinsonism protein Atp13a2.

Lauren R Kett | Barbara Stiller | Megan M Bernath | Inmaculada Tasset | Javier Blesa | Vernice Jackson-Lewis | Robin B Chan | Bowen Zhou | Gilbert Di Paolo | Serge Przedborski | Ana Maria Cuervo | William T Dauer
The Journal of neuroscience : the official journal of the Society for Neuroscience | 2015

Accumulating evidence from genetic and biochemical studies implicates dysfunction of the autophagic-lysosomal pathway as a key feature in the pathogenesis of Parkinson's disease (PD). Most studies have focused on accumulation of neurotoxic α-synuclein secondary to defects in autophagy as the cause of neurodegeneration, but abnormalities of the autophagic-lysosomal system likely mediate toxicity through multiple mechanisms. To further explore how endolysosomal dysfunction causes PD-related neurodegeneration, we generated a murine model of Kufor-Rakeb syndrome (KRS), characterized by early-onset Parkinsonism with additional neurological features. KRS is caused by recessive loss-of-function mutations in the ATP13A2 gene encoding the endolysosomal ATPase ATP13A2. We show that loss of ATP13A2 causes a specific protein trafficking defect, and that Atp13a2 null mice develop age-related motor dysfunction that is preceded by neuropathological changes, including gliosis, accumulation of ubiquitinated protein aggregates, lipofuscinosis, and endolysosomal abnormalities. Contrary to predictions from in vitro data, in vivo mouse genetic studies demonstrate that these phenotypes are α-synuclein independent. Our findings indicate that endolysosomal dysfunction and abnormalities of α-synuclein homeostasis are not synonymous, even in the context of an endolysosomal genetic defect linked to Parkinsonism, and highlight the presence of α-synuclein-independent neurotoxicity consequent to endolysosomal dysfunction.

Pubmed ID: 25855184

Research resources used in this publication

Additional research tools detected in this publication

None found

Associated grants

  • Agency: NINDS NIH HHS, United States
    Id: R01 NS061098
  • Agency: NINDS NIH HHS, United States
    Id: P50 NS038370
  • Agency: NINDS NIH HHS, United States
    Id: NS038370
  • Agency: NINDS NIH HHS, United States
    Id: F31 NS078817
  • Agency: NIGMS NIH HHS, United States
    Id: T32 GM007863
  • Agency: NIA NIH HHS, United States
    Id: P30 AG038072
  • Agency: NINDS NIH HHS, United States
    Id: P50 NS091856
  • Agency: NCI NIH HHS, United States
    Id: P30 CA013330
  • Agency: NINDS NIH HHS, United States
    Id: R01 NS056049
  • Agency: NIA NIH HHS, United States
    Id: P01 AG031782

Publication data is provided by the National Library of Medicine ® and PubMed ®. Data is retrieved from PubMed ® on a weekly schedule. For terms and conditions see the National Library of Medicine Terms and Conditions.

This is a list of tools and resources that we have found mentioned in this publication.


Anti-NeuN (antibody)

RRID:AB_2298772

This monoclonal targets NeuN

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alpha-synuclein (C-20)-R (antibody)

RRID:AB_2192953

This polyclonal targets SNCA

View all literature mentions

alpha-synuclein (LB 509) (antibody)

RRID:AB_785898

This monoclonal targets Human SNCA

View all literature mentions

Anti-Tyrosine Hydroxylase Antibody (antibody)

RRID:AB_390204

This polyclonal targets Tyrosine Hydroxylase

View all literature mentions

a-Synuclein (antibody)

RRID:AB_398107

This monoclonal targets a-Synuclein

View all literature mentions

GAPDH antibody [6C5] (antibody)

RRID:AB_2107448

This monoclonal targets GAPDH antibody [6C5]

View all literature mentions

Hsc70 Antibody (13D3) (antibody)

RRID:AB_2120309

This monoclonal targets Hsc70

View all literature mentions

Anti-VPS4 antibody produced in rabbit (antibody)

RRID:AB_10603251

This polyclonal targets VPS4 antibody produced in rabbit

View all literature mentions

Anti Iba1, Rabbit antibody (antibody)

RRID:AB_839504

This polyclonal targets Iba1

View all literature mentions

p62/SQSTM1 Antibody (antibody)

RRID:AB_548364

This monoclonal targets p62/SQSTM1

View all literature mentions

cathepsin L (H-80) (antibody)

RRID:AB_2087827

This polyclonal targets CTSL2, CTSL1

View all literature mentions

Rab 9 (FL-201) (antibody)

RRID:AB_2175330

This polyclonal targets RAB9A

View all literature mentions

cathepsin D (C-20) (antibody)

RRID:AB_637896

This polyclonal targets CTSD

View all literature mentions

Anti-Tyrosine Hydroxylase Antibody (antibody)

RRID:AB_90755

This polyclonal targets Tyrosine Hydroxylase

View all literature mentions

LC3B Antibody (antibody)

RRID:AB_10003146

This polyclonal targets LC3B

View all literature mentions

cathepsin B (S-12) (antibody)

RRID:AB_2086939

This polyclonal targets cathepsin B (S-12)

View all literature mentions

FlexField Software (software resource)

RRID:SCR_014420

Transformation software designed to help model and change Oracle account charts. This can be used to reorganize Oracle accounts due to events such as mergers, acquisitions, regulatory requirements and the need for more ranges when the data outgrows the range of the current chart of accounts. FlexField transforms an existing accounting flexfield segment structure, values, code combinations, and CCIDs according to user mappings, and applies the new code combinations and CCIDs. It propagates the change throughout an existing E-Business Suite data, everywhere the accounting flexfield is used. It removes the old code combinations and CCIDs, and aligns the new Chart of Accounts (COA) so that all balances belonging to a single CCID are summarized into a single line.

View all literature mentions

Anti-VPS4 antibody produced in rabbit (antibody)

RRID:AB_10603251

This polyclonal targets VPS4 antibody produced in rabbit

View all literature mentions

alpha-synuclein (C-20)-R (antibody)

RRID:AB_2192953

This polyclonal targets SNCA

View all literature mentions

cathepsin L (H-80) (antibody)

RRID:AB_2087827

This polyclonal targets CTSL2, CTSL1

View all literature mentions

Rab 9 (FL-201) (antibody)

RRID:AB_2175330

This polyclonal targets RAB9A

View all literature mentions

alpha-synuclein (LB 509) (antibody)

RRID:AB_785898

This monoclonal targets Human SNCA

View all literature mentions

Anti-NeuN (antibody)

RRID:AB_2298772

This monoclonal targets NeuN

View all literature mentions

cathepsin B (S-12) (antibody)

RRID:AB_2086939

This polyclonal targets cathepsin B (S-12)

View all literature mentions

B6;C3-Tg(Prnp-SNCA*A53T)83Vle/J (organism)

RRID:IMSR_JAX:004479

Mus musculus with name B6;C3-Tg(Prnp-SNCA*A53T)83Vle/J from IMSR.

View all literature mentions

Anti-Tyrosine Hydroxylase Antibody (antibody)

RRID:AB_90755

This polyclonal targets Tyrosine Hydroxylase

View all literature mentions

GraphPad Prism (software resource)

RRID:SCR_002798

Statistical analysis software that combines scientific graphing, comprehensive curve fitting (nonlinear regression), understandable statistics, and data organization. Designed for biological research applications in pharmacology, physiology, and other biological fields for data analysis, hypothesis testing, and modeling.

View all literature mentions

Hsc70 Antibody (13D3) (antibody)

RRID:AB_2120309

This monoclonal targets Hsc70

View all literature mentions

GAPDH antibody [6C5] (antibody)

RRID:AB_2107448

This monoclonal targets GAPDH antibody [6C5]

View all literature mentions

cathepsin D (C-20) (antibody)

RRID:AB_637896

This polyclonal targets CTSD

View all literature mentions

Anti-Tyrosine Hydroxylase Antibody (antibody)

RRID:AB_390204

This polyclonal targets Tyrosine Hydroxylase

View all literature mentions

p62/SQSTM1 Antibody (antibody)

RRID:AB_548364

This monoclonal targets p62/SQSTM1

View all literature mentions

a-Synuclein (antibody)

RRID:AB_398107

This monoclonal targets a-Synuclein

View all literature mentions

B6;C3-Tg(Prnp-SNCA*A53T)83Vle/J (organism)

RRID:IMSR_JAX:004479

Mus musculus with name B6;C3-Tg(Prnp-SNCA*A53T)83Vle/J from IMSR.

View all literature mentions

Anti Iba1, Rabbit antibody (antibody)

RRID:AB_839504

This polyclonal targets Iba1

View all literature mentions

LC3B Antibody (antibody)

RRID:AB_10003146

This polyclonal targets LC3B

View all literature mentions