Evidence map›Paper›PMID 29735704›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2018

LRRK2 phosphorylation of auxilin mediates synaptic defects in dopaminergic neurons from patients with Parkinson's disease.

Maria Nguyen, Dimitri Krainc

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 114 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
114citing papers in PubMed, 2 pooled it
13.4field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

114 citing papers in PubMed, 2 syntheses or guidelines pooled it, 159 citations in OpenAlex.

  1. Pooled it
  2. Emerging links between pediatric lysosomal storage diseases and adult parkinsonism.Movement disorders : official journal of the Movement Disorder Society · 2019
    Pooled it
  3. Oxidative stress in neurodegeneration: from a simple insult to a dynamic regulator.Redox report : communications in free radical research · 2026
    Review
  4. Synaptic Proteostasis in Health and Disease.Journal of neurochemistry · 2026
    Review
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54 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

2 authors at 1 institution in 1 country.

Maria NguyenKen & Ruth Davee Department of Neurology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611.
Dimitri KraincKen & Ruth Davee Department of Neurology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 dkrainc@nm.org.
Northwestern University · US

Funding

Tumor Environment and Metastasis (TEAM) Research ProgramP30CA060553 · NCI · NORTHWESTERN UNIVERSITY AT CHICAGO · PI Daniela E Matei · 1993 to 2026
$153.9M
PREDOCTORAL AND POSTDOCTORAL TRAINING PROGRAM IN AGING AND DEMENTIAT32AG020506 · NIA · NORTHWESTERN UNIVERSITY AT CHICAGO · PI ROBERT J VASSAR, SANDRA WEINTRAUB · 2002 to 2026
$9.9M
SYNAPTIC SUBSTRATES OF AGE-DEPENDENT MEMORY DEFICITSR01AG017139 · NIA · NORTHWESTERN UNIVERSITY AT CHICAGO · PI DISTERHOFT, JOHN F · 1999 to 2013
$4.6M
The Role of Lysosomal Glucocerebrosidase in SynucleinopathiesR01NS076054 · NINDS · NORTHWESTERN UNIVERSITY AT CHICAGO · PI KRAINC, DIMITRI · 2011 to 2020
$4.1M
Rational derivation of DA neuron subtypes from iPS cells for improved modelling of Parkinson's diseaseR01NS096240 · NINDS · NORTHWESTERN UNIVERSITY AT CHICAGO · PI AWATRAMANI, RAJESHWAR B, KRAINC, DIMITRI · 2016 to 2020
$3.0M
Induced Pluripotent Stem Cell Core for NiNDS InvestigatorsP30NS081774 · NINDS · NORTHWESTERN UNIVERSITY AT CHICAGO · PI KESSLER, JOHN A · 2012 to 2016
$2.3M
NCI NIH HHS P30 CA060553NIA NIH HHS R01 AG017139NIA NIH HHS T32 AG020506NINDS NIH HHS P30 NS081774NINDS NIH HHS R01 NS076054NINDS NIH HHS R01 NS096240
6 · The paper itself

Abstract

Recently identified Parkinson's disease (PD) genes involved in synaptic vesicle endocytosis, such as DNAJC6 (auxilin), have further implicated synaptic dysfunction in PD pathogenesis. However, how synaptic dysfunction contributes to the vulnerability of human dopaminergic neurons has not been previously explored. Here, we demonstrate that commonly mutated, PD-linked leucine-rich repeat kinase 2 (LRRK2) mediates the phosphorylation of auxilin in its clathrin-binding domain at Ser627. Kinase activity-dependent LRRK2 phosphorylation of auxilin led to differential clathrin binding, resulting in disrupted synaptic vesicle endocytosis and decreased synaptic vesicle density in LRRK2 patient-derived dopaminergic neurons. Moreover, impaired synaptic vesicle endocytosis contributed to the accumulation of oxidized dopamine that in turn mediated pathogenic effects such as decreased glucocerebrosidase activity and increased α-synuclein in mutant LRRK2 neurons. Importantly, these pathogenic phenotypes were partially attenuated by restoring auxilin function in mutant LRRK2 dopaminergic neurons. Together, this work suggests that mutant LRRK2 disrupts synaptic vesicle endocytosis, leading to altered dopamine metabolism and dopamine-mediated toxic effects in patient-derived dopaminergic neurons.

Indexed as

MutationAuxilinsCells, CulturedDopamineDopamine AgentsDopaminergic NeuronsEndocytosisHumansLeucine-Rich Repeat Serine-Threonine Protein Kinase-2Parkinson DiseasePhosphorylationSynaptic VesiclesAuxilinsDopamineDopamine AgentsLeucine-Rich Repeat Serine-Threonine Protein Kinase-2LRRK2 protein, humanauxilinDA oxidationLRRK2Parkinson’s diseasesynaptic vesicle endocytosis

Identifiers

PMID29735704
PMCPMC6003526
OpenAlexW2799979584

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.