NF2/Merlin mediates contact-dependent inhibition of EGFR mobility and internalization via cortical actomyosin
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The proliferation of normal cells is inhibited at confluence, but the molecular basis of this phenomenon, known as contact-dependent inhibition of proliferation, is unclear. We previously identified the neurofibromatosis type 2 (NF2) tumor suppressor Merlin as a critical mediator of contact-dependent inhibition of proliferation and specifically found that Merlin inhibits the internalization of, and signaling from, the epidermal growth factor receptor (EGFR) in response to cell contact. Merlin is closely related to the membrane–cytoskeleton linking proteins Ezrin, Radixin, and Moesin, and localization of Merlin to the cortical cytoskeleton is required for contact-dependent regulation of EGFR. We show that Merlin and Ezrin are essential components of a mechanism whereby mechanical forces associated with the establishment of cell–cell junctions are transduced across the cell cortex via the cortical actomyosin cytoskeleton to control the lateral mobility and activity of EGFR, providing novel insight into how cells inhibit mitogenic signaling in response to cell contact.
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EGFR activity status has been linked to intercellular junctional and actomyosin organization and function.
“As EGFR activity status has been linked to intercellular junctional and actomyosin organization and function26–29”
From E-cadherin integrates mechanotransduction and EGFR signaling to control junctional tissue polarization and tight junction positioning (2017) · cites this paper as [29]
Actomyosin-dependent forces also constrain EGFR activity in simple epithelia.
“In line with our data, actomyosin-dependent forces also constrain EGFR activity in simple epithelia29.”
From E-cadherin integrates mechanotransduction and EGFR signaling to control junctional tissue polarization and tight junction positioning (2017) · cites this paper as [29]
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Force Generation, Transmission, and Integration during Cell and Tissue Morphogenesis
Lecuit, T., Lenne, P.-F., & Munro, E. (2011) · Annual Review of Cell and Developmental Biology · doi:10.1146/annurev-cellbio-100109-104027 · Cited by 621 · see citing works
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Rübsam, M., Mertz, A. F., Kubo, A., Marg, S., Jüngst, C., Goranci-Buzhala, G., Schauss, A. C., Horsley, V., Dufresne, E. R., Moser, M., et al. (2017) · Nature Communications · doi:10.1038/s41467-017-01170-7 · Cited by 210 · see citing works
- Authors
- Chiasson-MacKenzie, C., Morris, Z. S., Baca, Q., Morris, B., Coker, J. K., Mirchev, R., Jensen, A. E., Carey, T., Stott, S. L., Golan, D. E., & McClatchey, A. I.
- Affiliations
- Harvard University (US)
- Massachusetts General Hospital (US)
- Corresponding author
- McClatchey, Andrea I.
- ORCID
- Venue
- Journal of Cell Biology
- Publisher
- Rockefeller University Press
- Published
- 2015-10-19
- Volume
- 211
- Issue
- 2
- Pages
- 391-405
- ISSN
- 0021-9525 (ISSN-L)
- 1540-8140
- PMC
- PMC4621825
- OpenAlex
- W1852638080
- Cited by
- 61
- References
- 1
- Citations by year
- 2026: 1 · 2025: 4 · 2024: 3 · 2023: 6 · 2022: 6 · 2021: 2 · 2020: 3 · 2019: 12 · 2018: 6 · 2017: 11 · 2016: 6 · 2015: 1
- FWCI
- 4.23
- Type
- journal article
- Language
- en
- Open access
- hybrid
- doi.org
- Licence
- cc-by-nc-sa
- Locations
- The Journal of Cell Biology (publishedVersion, cc-by-nc-sa)
- Europe PMC (PubMed Central) (publishedVersion, cc-by-nc-sa)
- PubMed Central (publishedVersion, cc-by-nc-sa)
- PubMed (publishedVersion)
- Digital Access to Scholarship at Harvard (DASH) (Harvard University) (submittedVersion, cc-by)
- Funders
- National Heart, Lung, and Blood Institute (R01HL116327, R01HL032854)
- National Cancer Institute (R01CA113733)
- National Institute of General Medical Sciences (F31GM078720, T32GM007306)
- Topics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Cellular Mechanics and Interactions
- Health Sciences › Medicine › Neurology › Neurofibromatosis and Schwannoma Cases
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Kinase Regulation and GTPase Signaling
- Keywords
- Merlin, epidermal growth factor receptor, EGFR internalization, ezrin, cell-cell contact, mechanotransduction, cell cortex, mitogenic signaling, cell confluence
- MeSH terms
- Ezrin, Actomyosin, Animals, Cells, Cultured, Contact Inhibition, Cytoskeletal Proteins, Intercellular Junctions, Membrane Proteins, Microfilament Proteins, Actin Cytoskeleton, Stress, Mechanical, Protein Transport, Nonmuscle Myosin Type IIA, Neurofibromin 2, RNA Interference, RNA, Small Interfering, Mechanotransduction, Cellular, Cell Proliferation, Mice, ErbB Receptors
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