Lsp2 links early-life diet to adult translation and lifespan in Drosophila

TL;DR - A Drosophila study uses isotope tracing to connect larval amino-acid intake with adult protein translation and lifespan. It identifies Lsp2 as a key molecular mediator of the lasting effects of early-life protein restriction.

• Traces the fate of amino acids consumed during larval development into adulthood.
• Links early-life diet to long-term regulation of protein translation.
• Identifies Lsp2 as a central regulator connecting developmental nutrition with adult lifespan.
• Provides a molecular basis for how early protein restriction can have persistent physiological effects.