ArticleScience advances2024
Regeneration of actin filament branches from the same Arp2/3 complex.
Article in Science advances, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed, 17 citations in OpenAlex.
- Inorganic phosphate rapidly switches the stability of Arp2/3-induced actin branches.The Journal of cell biology · 2026Article
- Agent-Based Computational Modeling of the Stochastic Dynamic Behavior of Actin Filaments Recapitulates the Homeostatic Cortical Array in Plant Epidermal Cells.Cytoskeleton (Hoboken, N.J.) · 2026Article
- A Modular Bioinstructive Platform Reveals Mechanistic Insights into Additive-Free, Topography-Driven Osteogenesis.Advanced healthcare materials · 2026Article
- Low YTHDC1 Expression Upregulates FSCN1 to Promote Nuclear F-Actin Formation and Facilitate Double-strand DNA Breaks Repair in TMZ-Resistant Glioblastoma.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- Reconstructing Actin Dynamics of the Leading Edge from Observational Data.bioRxiv : the preprint server for biology · 2026Article
- Coordinated Arp2/3-mediated actin branching and myosin-dependent force generation in membrane-cytoskeleton remodeling.Frontiers in physiology · 2026Review
- 4-phenylbutyric acid alleviated sepsis-induced myocardial dysfunction by inhibition of MAM formation to improve mitochondrial dynamic balance in myocardial cells.Burns & trauma · 2026Article
- FGF-Mediated Axon Guidance: Role of Downstream Signaling Pathways in Cytoskeletal Control.Cells · 2025Review
- Molecular mechanism of Arp2/3 complex activation by nucleation-promoting factors and an actin monomer.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- HIV-1 budding requires cortical actin disassembly by the oxidoreductase MICAL1.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
- Illuminating cortactin structure and function at actin filament branches.Nature structural & molecular biology · 2024Article
- Cortactin stabilizes actin branches by bridging activated Arp2/3 to its nucleated actin filament.Nature structural & molecular biology · 2024Article
- The stabilization of Arp2/3 complex generated actin filaments.Biochemical Society transactions · 2024Review
Corrections and comments
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Authors and funding
7 authors at 2 institutions in 2 countries.
Funding
Abstract
Branched actin filaments are found in many key cellular structures. Branches are nucleated by the Arp2/3 complex activated by nucleation-promoting factor (NPF) proteins and bound to the side of preexisting "mother" filaments. Over time, branches dissociate from their mother filament, leading to network reorganization and turnover, but this mechanism is less understood. Here, using microfluidics and purified proteins, we examined the dissociation of individual branches under controlled biochemical and mechanical conditions. We observe that the Arp2/3 complex remains bound to the mother filament after most debranching events, even when accelerated by force. Strikingly, this surviving Arp2/3 complex readily nucleates a new actin filament branch, without being activated anew by an NPF: It simply needs to exchange its nucleotide and bind an actin monomer. The protein glia maturation factor (GMF), which accelerates debranching, prevents branch renucleation. Our results suggest that actin filament renucleation can provide a self-repair mechanism, helping branched networks to sustain mechanical stress in cells over extended periods of time.
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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 OpenQuestion graph.