ArticleMolecular biology of the cell2020
The Rho-guanine nucleotide exchange factor Solo decelerates collective cell migration by modulating the Rho-ROCK pathway and keratin networks.
Article in Molecular biology of the cell, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 18 citations in OpenAlex.
- Partial epithelial-to-mesenchymal transition mediates profound gap closure through growth and fluidization.bioRxiv : the preprint server for biology · 2026Article
- Decoding Rho GTPase signalling networks in directed cell migration.Frontiers in cell and developmental biology · 2026Review
- MBNL loss of function in smooth muscle as a model for myotonic dystrophy associated gastrointestinal dysmotility.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Reciprocal regulation of Solo and Src orchestrates Src trafficking to promote mesenchymal cell migration.iScience · 2025Article
- Roles of the Dbl family of RhoGEFs in mechanotransduction - a review.Frontiers in cell and developmental biology · 2024Review
- Transgenic Overexpression of Myocilin Leads to Variable Ocular Anterior Segment and Retinal Alterations Associated with Extracellular Matrix Abnormalities in Adult Zebrafish.International journal of molecular sciences · 2022Article
- Recent advances in understanding the role of metabolic heterogeneities in cell migration.Faculty reviews · 2021Review
- An Update on Molecular Pathways Regulating Vasculogenic Mimicry in Human Osteosarcoma and Their Role in Canine Oncology.Frontiers in veterinary science · 2021Review
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Authors and funding
11 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Collective cell migration plays crucial roles in tissue remodeling, wound healing, and cancer cell invasion. However, its underlying mechanism remains unknown. Previously, we showed that the RhoA-targeting guanine nucleotide exchange factor Solo (ARHGEF40) is required for tensile force-induced RhoA activation and proper organization of keratin-8/keratin-18 (K8/K18) networks. Here, we demonstrate that Solo knockdown significantly increases the rate at which Madin-Darby canine kidney cells collectively migrate on collagen gels. However, it has no apparent effect on the migratory speed of solitary cultured cells. Therefore, Solo decelerates collective cell migration. Moreover, Solo localized to the anteroposterior regions of cell-cell contact sites in collectively migrating cells and was required for the local accumulation of K8/K18 filaments in the forward areas of the cells. Partial Rho-associated protein kinase (ROCK) inhibition or K18 or plakoglobin knockdown also increased collective cell migration velocity. These results suggest that Solo acts as a brake for collective cell migration by generating pullback force at cell-cell contact sites via the RhoA-ROCK pathway. It may also promote the formation of desmosomal cell-cell junctions related to K8/K18 filaments and plakoglobin.
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