Evidence map›Paper›PMID 25107341›Full record

ArticleNeurobiology of disease2014

Genetic and pharmacological evidence that G2019S LRRK2 confers a hyperkinetic phenotype, resistant to motor decline associated with aging.

Francesco Longo, Isabella Russo, Derya R Shimshek, Elisa Greggio, Michele Morari

Open access · hybridAbstract read
In one paragraph

Article in Neurobiology of disease, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed
3.6field-weighted citation impact, top 8% 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

38 citing papers in PubMed, 57 citations in OpenAlex.

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  20. Progress inFrontiers in neuroscience · 2020
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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

5 authors at 3 institutions in 2 countries.

Francesco LongoDepartment of Medical Sciences, Section of Pharmacology, and National Institute of Neuroscience, University of Ferrara, via Fossato di Mortara 17-19, 44121 Ferrara, Italy.
Isabella RussoDepartment of Biology, University of Padova, Via Ugo Bassi 58/B, 35131 Padova, Italy.
Derya R ShimshekDepartment of Neuroscience, Novartis Institutes for BioMedical Research, Novartis Pharma AG, 4002 Basel, Switzerland.
Elisa GreggioDepartment of Biology, University of Padova, Via Ugo Bassi 58/B, 35131 Padova, Italy.
Michele MorariDepartment of Medical Sciences, Section of Pharmacology, and National Institute of Neuroscience, University of Ferrara, via Fossato di Mortara 17-19, 44121 Ferrara, Italy. Electronic address: m.morari@unife.it.
University of Ferrara · ITUniversity of Padua · ITNovartis (Switzerland) · CH

Funding

Telethon GGP12237
6 · The paper itself

Abstract

The leucine-rich repeat kinase 2 mutation G2019S in the kinase-domain is the most common genetic cause of Parkinson's disease. To investigate the impact of the G2019S mutation on motor activity in vivo, a longitudinal phenotyping approach was developed in knock-in (KI) mice bearing this kinase-enhancing mutation. Two cohorts of G2019S KI mice and wild-type littermates (WT) were subjected to behavioral tests, specific for akinesia, bradykinesia and overall gait ability, at different ages (3, 6, 10, 15 and 19months). The motor performance of G2019S KI mice remained stable up to the age of 19months and did not show the typical age-related decline in immobility time and stepping activity of WT. Several lines of evidence suggest that enhanced LRRK2 kinase activity is the main contributor to the observed hyperkinetic phenotype of G2019S KI mice: i) KI mice carrying a LRRK2 kinase-dead mutation (D1994S KD) showed a similar progressive motor decline as WT; ii) two LRRK2 kinase inhibitors, H-1152 and Nov-LRRK2-11, acutely reversed the hyperkinetic phenotype of G2019S KI mice, while being ineffective in WT or D1994S KD animals. LRRK2 target engagement in vivo was further substantiated by reduction of LRRK2 phosphorylation at Ser935 in the striatum and cortex at efficacious doses of Nov-LRRK2-11, and in the striatum at efficacious doses of H-1152. In summary, expression of the G2019S mutation in the mouse LRRK2 gene confers a hyperkinetic phenotype that is resistant to age-related motor decline, likely via enhancement of LRRK2 kinase activity. This study provides an in vivo model to investigate the effects of LRRK2 inhibitors on motor function.

Indexed as

Aging1-(5-Isoquinolinesulfonyl)-2-MethylpiperazineAnalysis of VarianceAnimalsBrainDose-Response Relationship, DrugEnzyme InhibitorsGlycineHumansHyperkinesisLeucine-Rich Repeat Serine-Threonine Protein Kinase-2MaleMiceMice, Inbred C57BLMice, TransgenicMutation1-(5-Isoquinolinesulfonyl)-2-Methylpiperazine2-methyl-1-((4-methyl-5-isoquinolinyl)sulfonyl)homopiperazineEnzyme InhibitorsGlycineLeucine-Rich Repeat Serine-Threonine Protein Kinase-2LRRK2 protein, humanProtein Serine-Threonine KinasesSerineAgingD1994S knock-inG2019S knock-inH-1152LRRK2LRRK2 kinase-deadLRRK2 kinase inhibitorsNov-LRRK2-11Parkinson's diseaseSer935 phosphorylation

Identifiers

PMID25107341
PMCPMC4194318
OpenAlexW2042911407

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.