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The Independent UK
The Independent UK
National
Vishwam Sankaran

Scientists find ‘master gene’ to regrow lost ear hair cells for restoring hearing in mice

Tobias Bartsch

Scientists have discovered a single “master gene” that programmes ear hair cells into either outer or inner ones, an advance that they say can help overcome a major hurdle to restoring hearing.

Researchers, including those from Northwestern University in the US, say hearing loss either due to aging, noise, or certain cancer therapy drugs and antibiotics, has been irreversible since effective methods do not exist for reprogramming existing cells to develop into the outer and inner ear sensory cells – essential for hearing – once they die.

While currently there are ways to produce artificial hair cells, scientists say these do not differentiate the hair cells into inner or outer ear cells, which provide different essential functions to produce hearing.

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