Cited by 396Cellular Mechanics and InteractionsProtein Kinase Regulation and GTPase SignalingAxon Guidance and Neuronal Signaling

Signaling mechanisms and functional roles of cofilin phosphorylation and dephosphorylation

Mizuno, Kensaku·2013·Cellular Signalling

Abstract

Cofilin and actin-depolymerizing factor (ADF) are actin-binding proteins that play an essential role in regulating actin filament dynamics and reorganization by stimulating the severance and depolymerization of actin filaments. Cofilin/ADF are inactivated by phosphorylation at the serine residue at position 3 by LIM-kinases (LIMKs) and testicular protein kinases (TESKs) and are reactivated by dephosphorylation by the slingshot (SSH) family of protein phosphatases and chronophin. This review describes recent advances in our understanding of the signaling mechanisms regulating LIMKs and SSHs and the functional roles of cofilin phospho-regulation in cell migration, tumor invasion, mitosis, neuronal development, and synaptic plasticity. Accumulating evidence demonstrates that the phospho-regulation of cofilin/ADF is a key convergence point of cell signaling networks that link extracellular stimuli to actin cytoskeletal dynamics and that spatiotemporal control of cofilin/ADF activity by LIMKs and SSHs plays a crucial role in a diverse array of cellular and physiological processes. Perturbations in the normal control of cofilin/ADF activity underlie many pathological conditions, including cancer metastasis and neurological and cardiovascular disorders.

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Crossref · 10.1016/j.cellsig.2012.11.001

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  • Reelin signaling activates PI3kinase, which initiates a pathway that induces phosphorylation of LIM kinase-1 (LIMK-1), which in turn phosphorylates cofilin at an inhibitory site, blocking the actin-depolymerizing activity of cofilin.

    “Reelin signaling activates PI3kinase, as described above [61]. In turn, PI3kinase initiates a signaling pathway that induces phosphorylation of LIM kinase-1 (LIMK-1), which in turn phosphorylates cofilin at an inhibitory site, blocking the actin-depolymerizing activity of cofilin [62, 63].”

    From ApoE, ApoE Receptors, and the Synapse in Alzheimer's Disease (2017) · cites this paper as [63]

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Authors
Mizuno, K.
Affiliations
Tohoku University (JP)
Corresponding author
Mizuno, Kensaku
Venue
Cellular Signalling
Publisher
Elsevier BV
Published
2013-02
Volume
25
Issue
2
Pages
457-469
ISSN
0898-6568 (ISSN-L)
OpenAlex
W2030777833
Cited by
396
References
154
Citations by year
2026: 18 · 2025: 23 · 2024: 22 · 2023: 25 · 2022: 19 · 2021: 38 · 2020: 27 · 2019: 24 · 2018: 39 · 2017: 41 · 2016: 29 · 2015: 35 · 2014: 33 · 2013: 21 · 2012: 1
FWCI
2.64
Type
journal article
Language
en
Open access
closed
Locations
  • Cellular Signalling (publishedVersion)
  • PubMed (publishedVersion)
Funders
Ministry of Education, Culture, Sports, Science and Technology
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Cellular Mechanics and Interactions
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Kinase Regulation and GTPase Signaling
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Axon Guidance and Neuronal Signaling
Keywords
cofilin, actin depolymerizing factor, cofilin phosphorylation, cofilin dephosphorylation, LIM kinase, actin cytoskeleton dynamics, cell migration, tumor invasion, mitosis, neuronal development, synaptic plasticity, metastasis, cardiovascular disease, neurological disorders
MeSH terms
Actins, Animals, Humans, Neoplasms, Phosphoprotein Phosphatases, Phosphorylation, Signal Transduction, Protein Serine-Threonine Kinases, 14-3-3 Proteins, Actin Depolymerizing Factors

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