Ketamine’s Antidepressant Effects Linked to Brain Support Cells

Overview

• Researchers found that ketamine suppresses 'giving up' behavior in zebrafish by overstimulating astroglia, a type of brain support cell.
• The study demonstrated that ketamine-induced astroglia activation reduces sensitivity to stress signals, promoting behavioral perseverance.
• Similar mechanisms were observed in mice, suggesting the antidepressant effects of ketamine may be evolutionarily conserved across species.
• The findings challenge the traditional focus on neurons in depression research and point to astroglia as a promising target for new treatments.
• The research highlights the potential for cross-species studies to advance understanding of antidepressants and develop safer, faster-acting therapies.