Cited by 207Cell Adhesion Molecules ResearchCellular Mechanics and InteractionsProtein Kinase Regulation and GTPase Signaling

FAK Structure and Regulation by Membrane Interactions and Force in Focal Adhesions

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Tapial Martínez, Paula, López Navajas, Pilar, Lietha, Daniel·2020·Biomolecules

Abstract

Focal adhesion kinase (FAK) is a non-receptor tyrosine kinase with key roles in the regulation of cell adhesion migration, proliferation and survival. In cancer FAK is a major driver of invasion and metastasis and its upregulation is associated with poor patient prognosis. FAK is autoinhibited in the cytosol, but activated upon localisation into a protein complex, known as focal adhesion complex. This complex forms upon cell adhesion to the extracellular matrix (ECM) at the cytoplasmic side of the plasma membrane at sites of ECM attachment. FAK is anchored to the complex via multiple sites, including direct interactions with specific membrane lipids and connector proteins that attach focal adhesions to the actin cytoskeleton. In migrating cells, the contraction of actomyosin stress fibres attached to the focal adhesion complex apply a force to the complex, which is likely transmitted to the FAK protein, causing stretching of the FAK molecule. In this review we discuss the current knowledge of the FAK structure and how specific structural features are involved in the regulation of FAK signalling. We focus on two major regulatory mechanisms known to contribute to FAK activation, namely interactions with membrane lipids and stretching forces applied to FAK, and discuss how they might induce structural changes that facilitate FAK activation.

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Crossref · 10.3390/biom10020179

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  • The osteoclast cytoskeleton is made of four categories of filamentous structures and fulfills essential functions including cell adhesion, migration, contractility, division, vesicular transport, and bone resorption.

    “The osteoclast cytoskeleton is made of filamentous structures that belong to one of four categories: polarized actin filaments; polarized microtubules; non-polarized intermediate filaments; or non-polarized septin filaments. The cytoskeleton fulfills essential functions including cell adhesion, migration, contractility, division, vesicular transport, and bone resorption [2,3,4,5,6].”

    From Osteoclasts and Microgravity (2020) · cites this paper as [5]

    The Introduction describes an actin-cytoskeleton connection that provides traction during cell migration as actomyosin fibres contract, supporting part of the functional claim. It does not address osteoclasts, the four filament categories, or the claimed roles in division, vesicular transport, and bone resorption. (LLM, conf=0.85)

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Authors
Tapial Martínez, P., López Navajas, P., & Lietha, D.
Affiliations
  • Centro de Investigaciones Biológicas (CIB), Spanish National Research Council (CSIC), Cell Signalling and Adhesion Group, 28040 Madrid, Spain
  • Consejo Superior de Investigaciones Científicas (ES)
Corresponding author
Lietha, Daniel
Venue
Biomolecules
Publisher
MDPI AG
Published
2020-01-24
Volume
10
Issue
2
Pages
179
ISSN
2218-273X (ISSN-L)
OpenAlex
W3002011373
Cited by
206
References
95
Citations by year
2026: 16 · 2025: 21 · 2024: 45 · 2023: 44 · 2022: 41 · 2021: 24 · 2020: 15
FWCI
4.32
Type
journal article
Language
en
Open access
Locations
  • Biomolecules (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DIGITAL.CSIC (Spanish National Research Council (CSIC)) (submittedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • Ministerio de Ciencia, Innovación y Universidades (RTI2018-099318-B-I00, RTI2018)
  • Ministerio de Asuntos Económicos y Transformación Digital, Gobierno de España (BFU2016-77665-R)
  • European Regional Development Fund (BFU2016, RTI2018, BFU2016-77665-R)
  • Agencia Estatal de Investigación
Topics
  • Health Sciences › Medicine › Immunology and Allergy › Cell Adhesion Molecules Research
  • 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
Keywords
focal adhesion kinase, focal adhesions, membrane lipid interactions, mechanical forces, FAK activation, non-receptor tyrosine kinase, cell adhesion, extracellular matrix, metastasis, actin cytoskeleton
MeSH terms
Cell Adhesion, Cell Movement, Humans, Membranes, Actin Cytoskeleton, Phosphorylation, Signal Transduction, Focal Adhesions, Mechanotransduction, Cellular, Focal Adhesion Kinase 1

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