Evidence map›Paper›PMID 27013965›Full record

ArticleFrontiers in molecular neuroscience2016

Protective LRRK2 R1398H Variant Enhances GTPase and Wnt Signaling Activity.

Jonathon Nixon-Abell, Daniel C Berwick, Simone Grannó, Victoria A Spain, Craig Blackstone, Kirsten Harvey

Abstract read
In one paragraph

Article in Frontiers in molecular neuroscience, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

44 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Coding and Noncoding Variation in LRRK2 and Parkinson's Disease Risk.Movement disorders : official journal of the Movement Disorder Society · 2022
    Pooled it
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  10. Development of a highly potent and selective degrader of LRRK2.Bioorganic & medicinal chemistry letters · 2023
    Article
  11. Leucine-rich repeat kinase 2 at a glance.Journal of cell science · 2023
    Article
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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

6 authors.

Jonathon Nixon-AbellDepartment of Pharmacology, UCL School of Pharmacy, University College LondonLondon, UK; Neurogenetics Branch, National Institute of Neurological Disorders and Stroke - National Institutes of Health, BethesdaMD, USA.
Daniel C BerwickDepartment of Pharmacology, UCL School of Pharmacy, University College LondonLondon, UK; Department of Life, Health and Chemical Sciences, The Open UniversityMilton Keynes, UK.
Simone GrannóDepartment of Pharmacology, UCL School of Pharmacy, University College London London, UK.
Victoria A SpainDepartment of Pharmacology, UCL School of Pharmacy, University College London London, UK.
Craig BlackstoneNeurogenetics Branch, National Institute of Neurological Disorders and Stroke - National Institutes of Health, Bethesda MD, USA.
Kirsten HarveyDepartment of Pharmacology, UCL School of Pharmacy, University College London London, UK.

Funding

Molecular Pathogenesis Of Hereditary Spastic ParaplegiasZIANS002992 · NINDS · NATIONAL INSTITUTE OF NEUROLOGICAL DISORDERS AND STROKE · PI BLACKSTONE, CRAIG · 2009 to 2021
$20.6M
Medical Research Council MR/M00676X/1
6 · The paper itself

Abstract

Mutations in LRRK2 are a common cause of familial and idiopathic Parkinson's disease (PD). Recently, the LRRK2 GTPase domain R1398H variant was suggested in genetic studies to confer protection against PD but mechanistic data supporting this is lacking. Here, we present evidence that R1398H affects GTPase function, axon outgrowth, and Wnt signaling in a manner opposite to pathogenic LRRK2 mutations. LRRK2 R1398H GTPase domain dimerization and GTP hydrolysis were increased whereas GTP binding was reduced, leading to a decrease in active GTP-bound LRRK2. This protective variant also increased axon length of primary cortical neurones in comparison to wild-type LRRK2, whereas the R1441G LRRK2 pathogenic mutant decreased axon outgrowth. Importantly, R1398H enhanced the stimulatory effect of LRRK2 on canonical Wnt signaling whereas the G2385R risk variant, in accordance with all previously tested pathogenic LRRK2 mutants, had the opposite effect. Molecular modeling placed R1398H in close proximity to PD-causing mutations suggesting that this protective LRRK2 variant, like familial mutations, affects intramolecular RocCOR domain interactions. Thus, our data suggest that R1398H LRRK2 is a bona fide protective variant. The opposite effects of protective versus PD associated LRRK2 variants on GTPase function and canonical Wnt signaling activity also suggests that regulation of these two basic signaling mechanisms is important for neuronal function. We conclude that LRRK2 mediated Wnt signaling and GTPase function are fundamental in conferring disease susceptibility and have clear implications for therapeutic target identification.

Indexed as

GTPase activityLRRK2Parkinson’s diseaseprotective genetic variantWnt signaling

Identifiers

PMID27013965
PMCPMC4781896

What OpenQuestion holds

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LicenceCC BY
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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.