ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2009
Twinfilin 2 regulates actin filament lengths in cochlear stereocilia.
Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 68 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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.
The trial behind it
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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
68 citing papers in PubMed, 98 citations in OpenAlex.
- Membrane-associated Rhes-Slc4a7 complex orchestrates tunneling nanotube formation and mutant Huntingtin spread.Science advances · 2026Article
- Myosin 7a is required for maintaining the transducing stereocilia and for force transmission to the MET channel during cochlear hair cell development.The Journal of physiology · 2026Article
- Adeno-associated virus-based rescue of Myo7a expression restores hair-cell function and improves hearing thresholds in a USH1B mouse strain.The Journal of physiology · 2025Article
- Mendelian non-syndromic and syndromic hearing loss genes contribute to presbycusis.European journal of human genetics : EJHG · 2025Article
- Regulation of actin dynamics by Twinfilin.Current opinion in cell biology · 2025Review
- Myosin-based nucleation of actin filaments contributes to stereocilia development critical for hearing.Nature communications · 2025Article
- MYO7A is required for the functional integrity of the mechanoelectrical transduction complex in hair cells of the adult cochlea.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- The actin cytoskeleton in hair bundle development and hearing loss.Hearing research · 2023Review
- Spontaneous allelic variant in deafness-blindness gene Ush1g resulting in an expanded phenotype.Genes, brain, and behavior · 2023Article
- Multicomponent regulation of actin barbed end assembly by twinfilin, formin and capping protein.Nature communications · 2023Article
- Cross-Platform Synaptic Network Analysis of Human Entorhinal Cortex Identifies TWF2 as a Modulator of Dendritic Spine Length.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2023Article
- Multicomponent regulation of actin barbed end assembly by twinfilin, formin and capping protein.bioRxiv : the preprint server for biology · 2023Article
- Control of stereocilia length during development of hair bundles.PLoS biology · 2023Article
- The morphological and functional diversity of apical microvilli.Journal of anatomy · 2023Review
- Actin Bundles Dynamics and Architecture.Biomolecules · 2023Review
- Deafness-related protein PDZD7 forms complex with the C-terminal tail of FCHSD2.The Biochemical journal · 2022Article
- Human deafness-associated variants alter the dynamics of key molecules in hair cell stereocilia F-actin cores.Human genetics · 2022Review
- BAIAP2L2 Inactivation Does Not Affect Stereocilia Development or Maintenance in Vestibular Hair Cells.Frontiers in molecular neuroscience · 2022Article
- Grxcr1 regulates hair bundle morphogenesis and is required for normal mechanoelectrical transduction in mouse cochlear hair cells.PloS one · 2022Article
- Twinfilin regulates actin assembly and Hexagonal peroxisome 1 (Hex1) localization in the pathogenesis of rice blast fungus Magnaporthe oryzae.Molecular plant pathology · 2021Article
8 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 2 institutions in 1 country.
Funding
Abstract
Inner ear sensory hair cells convert mechanical stimuli into electrical signals. This conversion happens in the exquisitely mechanosensitive hair bundle that protrudes from the cell's apical surface. In mammals, cochlear hair bundles are composed of 50-100 actin-filled stereocilia, which are organized in three rows in a staircase manner. Stereocilia actin filaments are uniformly oriented with their barbed ends toward stereocilia tips. During development, the actin core of each stereocilium undergoes elongation due to addition of actin monomers to the barbed ends of the filaments. Here we show that in the mouse cochlea the barbed end capping protein twinfilin 2 is present at the tips of middle and short rows of stereocilia from postnatal day 5 (P5) onward, which correlates with a time period when these rows stop growing. The tall stereocilia rows, which do not display twinfilin 2 at their tips, continue to elongate between P5 and P15. When we expressed twinfilin 2 in LLC/PK1-CL4 (CL4) cells, we observed a reduction of espin-induced microvilli length, pointing to a potent function of twinfilin 2 in suppressing the elongation of actin filaments. Overexpression of twinfilin 2 in cochlear inner hair cells resulted in a significant reduction of stereocilia length. Our results suggest that twinfilin 2 plays a role in the regulation of stereocilia elongation by restricting excessive elongation of the shorter row stereocilia thereby maintaining the mature staircase architecture of cochlear hair bundles.
Indexed as
Identifiers
What OpenQuestion holds
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.