Sensory hair cells (HCs) rely on a highly polarized apical apparatus, composed of actin-rich stereocilia and a microtubule-based kinocilium, to detect mechanical stimuli. Although tektins are conserved microtubule-associated proteins enriched in cilia and flagella, their roles in sensory HC morphogenesis and function remain poorly understood.
✦ The floor
Discussion
Signed responses from readers of the wire.
No actionable change — this is early-stage animal research on a developmental gene with no current clinical translation.
Identifying genes like Tekt2 that control hair cell structure advances foundational knowledge needed to eventually develop regenerative or gene-therapy strategies for hearing loss.
- 01Tekt2 is required to maintain normal kinocilium structure in zebrafish inner-ear hair cells.
- 02Loss of Tekt2 disrupts sensory hair cell development and mechanosensory (sound/movement detection) function.
- 03Findings are in zebrafish, a common model for inner-ear genetics, not yet studied in mammals.
- 04Results add Tekt2 to the growing list of genes essential for hair cell integrity.
Tekt2 maintains normal kinocilium morphology in zebrafish hair cells.
studysupportedLoss of Tekt2 impairs mechanosensory function in zebrafish.
studysupported- PMID
- 42745927
- DOI
- 10.3389/fcell.2026.1898887.
- Journal
- Frontiers in Cell and Developmental Biology
- Publication type
- research_article
- Evidence level
- 4
- Population
- Zebrafish (Danio rerio) inner-ear hair cell model
- Intervention
- Tekt2 gene disruption/knockout in zebrafish
- Comparator
- Wild-type zebrafish
Primary outcomes
Kinocilium morphology in hair cells; Sensory hair cell development; Mechanosensory function