Cited by 55Protein Kinase Regulation and GTPase SignalingCellular Mechanics and InteractionsChemokine receptors and signaling

GPCR-mediated PLCβγ/PKCβ/PKD signaling pathway regulates the cofilin phosphatase slingshot 2 in neutrophil chemotaxis

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Xu, Xuehua, Gera, Nidhi, Li, Hongyan, Yun, Michelle, Zhang, Liyong, Wang, Youhong, Wang, Q. Jane, Jin, Tian·2015·Molecular Biology of the Cell

Abstract

Chemotaxis requires precisely coordinated polymerization and depolymerization of the actin cytoskeleton at leading fronts of migrating cells. However, GPCR activation-controlled F-actin depolymerization remains largely elusive. Here, we reveal a novel signaling pathway, including Gαi, PLC, PKCβ, protein kinase D (PKD), and SSH2, in control of cofilin phosphorylation and actin cytoskeletal reorganization, which is essential for neutrophil chemotaxis. We show that PKD is essential for neutrophil chemotaxis and that GPCR-mediated PKD activation depends on PLC/PKC signaling. More importantly, we discover that GPCR activation recruits/activates PLCγ2 in a PI3K-dependent manner. We further verify that PKCβ specifically interacts with PKD1 and is required for chemotaxis. Finally, we identify slingshot 2 (SSH2), a phosphatase of cofilin (actin depolymerization factor), as a target of PKD1 that regulates cofilin phosphorylation and remodeling of the actin cytoskeleton during neutrophil chemotaxis.

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  1. Li Z Jiang H Xie W Zhang Z Smrcka AV Wu D Roles of PLC-beta2 and -beta3 and PI3Kgamma in chemoattractant-mediated signal transduction Science 2000 287 1046 1049 10669417

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Authors
Xu, X., Gera, N., Li, H., Yun, M., Zhang, L., Wang, Y., Wang, Q. J., & Jin, T.
Affiliations
  • National Institutes of Health (US)
  • University of Pittsburgh (US)
Venue
Molecular Biology of the Cell
Published
2015-03
Volume
26
Issue
5
Pages
874-886
ISSN
  • 1059-1524 (ISSN-L)
  • 1939-4586
OpenAlex
W2155467489
Cited by
55
References
38
Citations by year
2026: 4 · 2025: 2 · 2024: 1 · 2023: 7 · 2022: 3 · 2021: 8 · 2020: 10 · 2019: 4 · 2018: 6 · 2017: 3 · 2016: 4 · 2015: 3
FWCI
2.32
Type
journal article
Language
en
Open access
Licence
cc-by-nc-sa
Locations
  • Molecular Biology of the Cell (publishedVersion)
  • PubMed Central (publishedVersion, cc-by-nc-sa)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health
  • National Cancer Institute (R01CA129127, R01CA142580)
  • National Institute of Allergy and Infectious Diseases
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Kinase Regulation and GTPase Signaling
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Cellular Mechanics and Interactions
  • Health Sciences › Medicine › Oncology › Chemokine receptors and signaling
Keywords
neutrophil chemotaxis, G protein-coupled receptor signaling, protein kinase C beta, protein kinase D, cofilin dephosphorylation, actin cytoskeleton remodeling, F-actin depolymerization, Gαi, PI3K signaling, PLCγ2, PKD1
MeSH terms
Animals, Chemotaxis, Leukocyte, Female, Humans, Male, Actin Cytoskeleton, Neutrophils, Phosphoprotein Phosphatases, Protein Kinase C, Signal Transduction, Receptors, G-Protein-Coupled, Cofilin 1, Mice, Phospholipase C gamma, Phospholipase C beta, Protein Kinase C beta

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