ArticleNature cell biology2026
Long-range mutual activation establishes Rho and Rac polarity during cell migration.
Article in Nature cell biology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
9 citing papers in PubMed.
- Daam-, FMNL-, and mDia-family formins jointly regulate cortical actin dynamics in melanoma cells.Cell communication and signaling : CCS · 2026Article
- Article
- Cytoskeletal disassembly by optogenetic control of RhoA signaling termination.bioRxiv : the preprint server for biology · 2026Article
- Chemical and Mechanical Regulation of Leukocyte Migration.Cold Spring Harbor perspectives in biology · 2026Review
- Coordinated Arp2/3-mediated actin branching and myosin-dependent force generation in membrane-cytoskeleton remodeling.Frontiers in physiology · 2026Review
- Spatiotemporal coupling of caveolae mechanosensing and RhoA-GEFs regulates cell polarity and directional migration.Nature communications · 2025Article
- S1P induces bleb-based T cell motility via S1PR1-dependent activation of RhoA and WNK1.bioRxiv : the preprint server for biology · 2025Article
- WAVE complex forms linear arrays at negative membrane curvature to instruct lamellipodia formation.The Journal of cell biology · 2025Article
- The scaffold protein CasL restrains membrane blebbing and promotes T cell migration.Journal of cell science · 2025Article
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Authors and funding
11 authors.
Funding
Abstract
In migrating cells, the GTPase Rac organizes a protrusive front, whereas Rho organizes a contractile back. How these GTPases are positioned at opposite poles remains unclear. We leverage optogenetics, mechanical perturbations, and mathematical modelling to reveal a surprising mechanochemical long-range mutual activation between front and back polarity programmes that complements their well-known local mutual inhibition. Rac-based protrusions elevate membrane tension, stimulating an mTORC2-dependent activation of Rho at the opposite side of the cell. Conversely, Rho-mediated contractility induces cortical-flow-based regulation of phosphoinositide signalling that triggers Rac activation distally. We develop a minimal mechanochemical model to explain how long-range facilitation, together with local inhibition, enables robust Rho and Rac partitioning. Our findings demonstrate how the actin cortex and plasma membrane interact as an integrated mechanochemical system for long-range Rac-Rho patterning. This circuit is required for efficient polarity and migration in primary human T cells and is conserved in epithelial cells, highlighting the generality of this mechanism.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.