Federal Project Grant Award Summary

The National Institute on Deafness and Other Communication Disorders (NIDCD) awarded the University of Washington a $490,487 Project Grant on February 13, 2026, under the Research Related to Deafness and Communication Disorders program (CFDA 93.173) to conduct basic research on spatial patterning mechanisms in the zebrafish inner ear vestibular system. The research will examine how hair cells—sensory structures critical for balance and vestibular function—are organized into distinct central and peripheral regions during development and how these spatial identities are established and maintained through molecular and genetic mechanisms. This work addresses the significant public health burden of vestibular dysfunction, which affects an estimated 69 million American adults over age 40, by leveraging the zebrafish model's unique capacity for hair cell regeneration to identify conserved biological principles applicable to human hearing and balance disorders.

The research deliverables span five years through January 31, 2031, and will produce comprehensive scientific findings on hair cell development, phenotypic switching during organ growth, mitochondrial activity patterns in distinct vestibular zones, the role of retinoic acid signaling in zonal patterning, and gene regulatory networks controlling spatial identity establishment. Results from this fundamental research will advance understanding of core conserved vestibular system features and contribute foundational knowledge toward potential therapeutic interventions for the substantial population affected by balance and hearing impairments.