Cited by 112Neuroinflammation and Neurodegeneration MechanismsParkinson's Disease Mechanisms and TreatmentsNuclear Receptors and Signaling

LRRK2 G2019S mutation attenuates microglial motility by inhibiting focal adhesion kinase

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Choi, Insup, Kim, Beomsue, Byun, Ji-Won, Baik, Sung Hoon, Huh, Yun Hyun, Kim, Jong-Hyeon, Mook-Jung, Inhee, Song, Woo Keun +7 more·2015·Nature Communications

Abstract

In response to brain injury, microglia rapidly extend processes that isolate lesion sites and protect the brain from further injury. Here we report that microglia carrying a pathogenic mutation in the Parkinson’s disease (PD)-associated gene, G2019S-LRRK2 (GS-Tg microglia), show retarded ADP-induced motility and delayed isolation of injury, compared with non-Tg microglia. Conversely, LRRK2 knockdown microglia are highly motile compared with control cells. In our functional assays, LRRK2 binds to focal adhesion kinase (FAK) and phosphorylates its Thr–X–Arg/Lys (TXR/K) motif(s), eventually attenuating FAK activity marked by decreased pY397 phosphorylation (pY397). GS-LRRK2 decreases the levels of pY397 in the brain, microglia and HEK cells. In addition, treatment with an inhibitor of LRRK2 kinase restores pY397 levels, decreased pTXR levels and rescued motility of GS-Tg microglia. These results collectively suggest that G2019S mutation of LRRK2 may contribute to the development of PD by inhibiting microglial response to brain injury.

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  • Focal adhesions are positioned at critical junctions of cells, linking the extracellular matrix with the actin cytoskeleton and allowing microglia to efficiently survey the parenchyma and respond to injuries.

    “Focal adhesions are positioned at critical junctions of cellslinking the extracellular matrix with the actin cytoskeletonand allowing microglia to efficiently survey the parenchyma and respond to injuries (Choi et al., 2015; Meller et al., 2017).”

    From Alzheimer’s genetic risk factor CASS4 controls microglial focal adhesion biology and amyloidosis (2026) · cites this paper as Choi et al., 2015

    The Results section on microglial motility says microglia survey the brain environment and extend processes toward injured sites; the paper also links FAK activity to microglial motility and injury response. Its discussion of extracellular-matrix–integrin interaction does not state that focal adhesions link the matrix to the actin cytoskeleton, or establish that this physical linkage enables surveillance and injury response. No page numbers are available in our copy. (LLM, conf=0.85)

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Authors
Choi, I., Kim, B., Byun, J.-W., Baik, S. H., Huh, Y. H., Kim, J.-H., Mook-Jung, I., Song, W. K., Shin, J.-H., Seo, H., Suh, Y. H., Jou, I., Park, S. M., Kang, H. C., & Joe, E.-H.
Affiliations
  • Ajou University (KR)
  • Seoul National University (KR)
  • Gwangju Institute of Science and Technology (KR)
  • Sungkyunkwan University (KR)
  • Hanyang University (KR)
Corresponding author
Joe, Eun-Hye
Venue
Nature Communications
Published
2015-09-14
Volume
6
Issue
1
Pages
8255-8255
ISSN
2041-1723 (ISSN-L)
OpenAlex
W2205544783
Cited by
112
References
72
Citations by year
2026: 5 · 2025: 12 · 2024: 13 · 2023: 12 · 2022: 10 · 2021: 8 · 2020: 13 · 2019: 8 · 2018: 8 · 2017: 13 · 2016: 8 · 2015: 1
FWCI
5.34
Type
journal article
Language
en
Open access
Locations
  • Nature Communications (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • AJOU Open Repository (Ajou University) (submittedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
Funders
  • Dongguk University
  • Kyung Hee University
  • Ajou University (NRF-2012R1A5A2048183)
  • Ministry of Science, ICT and Future Planning (2011-0030049, NRF‐2012R1A5A2048183, NRF-2011-0030049, 2012R1A5A2048183)
  • Korea Science and Engineering Foundation (2012R1A5A2048183, NRF-2012R1A5A2048183)
Topics
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Health Sciences › Medicine › Neurology › Parkinson's Disease Mechanisms and Treatments
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Nuclear Receptors and Signaling
Keywords
LRRK2, G2019S mutation, Parkinson's disease, microglial motility, focal adhesion kinase, FAK phosphorylation, brain injury response, LRRK2 inhibitors, neuroprotection
MeSH terms
Leucine-Rich Repeat Serine-Threonine Protein Kinase-2, Animals, Brain Injuries, Cell Movement, Humans, Mice, Transgenic, Mutation, Phosphorylation, Wound Healing, Blotting, Western, Protein Serine-Threonine Kinases, Microglia, Immunoprecipitation, Mice, Rats, Focal Adhesion Protein-Tyrosine Kinases, Gene Knockdown Techniques, HEK293 Cells

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