ArticleThe Journal of cell biology2025
The kinetochore protein KNL-1 regulates the actin cytoskeleton to control dendrite branching.
Article in The Journal of cell biology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Kinetochore proteins control microtubule dynamics in postmitotic neurons to regulate the formation of dendritic spines.Proceedings of the National Academy of Sciences of the United States of America · 2026Article
- Worm orthologues of cytokinesis-associated proteins CIT and ASPM regulate neuronal microtubule dynamics and polarity in C. elegans.PLoS genetics · 2026Article
- The KNL-1/Knl1 outer kinetochore protein caught regulating F-actin.The Journal of cell biology · 2025Article
- Dendrite morphogenesis in Caenorhabditis elegans.Genetics · 2024Review
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Authors and funding
6 authors.
Funding
Abstract
The function of the nervous system is intimately tied to its complex and highly interconnected architecture. Precise control of dendritic branching in individual neurons is central to building the complex structure of the nervous system. Here, we show that the kinetochore protein KNL-1 and its associated KMN (Knl1/Mis12/Ndc80 complex) network partners, typically known for their role in chromosome-microtubule coupling during mitosis, control dendrite branching in the Caenorhabditis elegans mechanosensory PVD neuron. KNL-1 restrains excess dendritic branching and promotes contact-dependent repulsion events, ensuring robust sensory behavior and preventing premature neurodegeneration. Unexpectedly, KNL-1 loss resulted in significant alterations of the actin cytoskeleton alongside changes in microtubule dynamics within dendrites. We show that KNL-1 modulates F-actin dynamics to generate proper dendrite architecture and that its N-terminus can initiate F-actin assembly. These findings reveal that the postmitotic neuronal KMN network acts to shape the developing nervous system by regulating the actin cytoskeleton and provide new insight into the mechanisms controlling dendrite architecture.
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Registered trials
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