Evidence map›Paper›PMID 28973664›Full record

ArticleHuman molecular genetics2017

LRRK2 G2019S-induced mitochondrial DNA damage is LRRK2 kinase dependent and inhibition restores mtDNA integrity in Parkinson's disease.

Evan H Howlett, Nicholas Jensen, Frances Belmonte, Faria Zafar, Xiaoping Hu, Jillian Kluss, Birgitt Schüle, Brett A Kaufman, J T Greenamyre, Laurie H Sanders

Open access · bronzeAbstract read
In one paragraph

Article in Human molecular genetics, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 70 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
70citing papers in PubMed, 1 pooled it
6.3field-weighted citation impact, top 3% 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

70 citing papers in PubMed, 1 synthesis or guideline pooled it, 103 citations in OpenAlex.

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  6. Rab12 is a regulator of mitophagy and mitochondrial homeostasis.bioRxiv : the preprint server for biology · 2026
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10 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

10 authors at 4 institutions in 1 country.

Evan H HowlettDepartment of Neurology, Pittsburgh Institute for Neurodegenerative Diseases.
Nicholas JensenDepartment of Neurology, Pittsburgh Institute for Neurodegenerative Diseases.
Frances BelmonteDepartment of Medicine, Center for Metabolism and Mitochondrial Medicine, University of Pittsburgh, Pittsburgh, PA 15260, USA.
Faria ZafarParkinson's Institute and Clinical Center, Sunnyvale, CA 94085, USA.
Xiaoping HuDepartment of Neurology, Pittsburgh Institute for Neurodegenerative Diseases.
Jillian KlussDepartment of Neurology, Pittsburgh Institute for Neurodegenerative Diseases.
Birgitt SchüleParkinson's Institute and Clinical Center, Sunnyvale, CA 94085, USA.
Brett A KaufmanDepartment of Medicine, Center for Metabolism and Mitochondrial Medicine, University of Pittsburgh, Pittsburgh, PA 15260, USA.
J T GreenamyreDepartment of Neurology, Pittsburgh Institute for Neurodegenerative Diseases.
Laurie H SandersDepartment of Neurology, Duke University Medical Center, Durham, NC 27710, USA.
Institute for Neurodegenerative Disorders · USParkinson's Institute and Clinical Center · USUniversity of Pittsburgh · USDuke University Hospital · US

Funding

VARIABILITY, STABILITY & SMOOTHNESS OF WALKINGP30AG024827 · NIA · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI JENNIFER S BRACH · 2004 to 2026
$28.6M
T32 Research Training in Diabetes and EndocrinologyT32DK007052 · NIDDK · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI ROBERT M O'DOHERTY · 1986 to 2026
$6.3M
Molecular mechanisms of mitochondrial DNA deletion formationR01GM110424 · NIGMS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI KAUFMAN, BRETT A · 2015 to 2019
$1.9M
NIA NIH HHS P30 AG024827NIDDK NIH HHS T32 DK007052NIGMS NIH HHS R01 GM110424
6 · The paper itself

Abstract

Mutations in leucine-rich repeat kinase 2 (LRRK2) are associated with increased risk for developing Parkinson's disease (PD). Previously, we found that LRRK2 G2019S mutation carriers have increased mitochondrial DNA (mtDNA) damage and after zinc finger nuclease-mediated gene mutation correction, mtDNA damage was no longer detectable. While the mtDNA damage phenotype can be unambiguously attributed to the LRRK2 G2019S mutation, the underlying mechanism(s) is unknown. Here, we examine the role of LRRK2 kinase function in LRRK2 G2019S-mediated mtDNA damage, using both genetic and pharmacological approaches in cultured neurons and PD patient-derived cells. Expression of LRRK2 G2019S induced mtDNA damage in primary rat midbrain neurons, but not in cortical neuronal cultures. In contrast, the expression of LRRK2 wild type or LRRK2 D1994A mutant (kinase dead) had no effect on mtDNA damage in either midbrain or cortical neuronal cultures. In addition, human LRRK2 G2019S patient-derived lymphoblastoid cell lines (LCL) demonstrated increased mtDNA damage relative to age-matched controls. Importantly, treatment of LRRK2 G2019S expressing midbrain neurons or patient-derived LRRK2 G2019S LCLs with the LRRK2 kinase inhibitor GNE-7915, either prevented or restored mtDNA damage to control levels. These findings support the hypothesis that LRRK2 G2019S-induced mtDNA damage is LRRK2 kinase activity dependent, uncovering a novel pathological role for this kinase. Blocking or reversing mtDNA damage via LRRK2 kinase inhibition or other therapeutic approaches may be useful to slow PD-associated pathology.

Indexed as

DNA DamageAdultAgedAged, 80 and overAnimalsCells, CulturedDNA, MitochondrialHumansLeucine-Rich Repeat Serine-Threonine Protein Kinase-2MaleMesencephalonMiddle AgedMitochondriaMorpholinesMutationNeurons(4-(4-(ethylamino)-5-(trifluoromethyl)pyrimidin-2-ylamino)-2-fluoro-5-methoxyphenyl)(morpholino)methanoneDNA, MitochondrialLeucine-Rich Repeat Serine-Threonine Protein Kinase-2LRRK2 protein, humanLRRK2 protein, ratMorpholinesProtein Kinase InhibitorsPyrimidines

Identifiers

PMID28973664
PMCPMC5886254
OpenAlexW2749429999

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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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.