Early-adulthood spike in protein translation drives aging via juvenile hormone/germline signaling

Harper S. Kim, Danitra J. Parker, Madison M. Hardiman, Erin Munkácsy, Nisi Jiang, Aric N. Rogers, Yidong Bai, Colin Brent, James A. Mobley, Steven N. Austad, Andrew M. Pickering

Producción científica: Articlerevisión exhaustiva

1 Cita (Scopus)

Resumen

Protein translation (PT) declines with age in invertebrates, rodents, and humans. It has been assumed that elevated PT at young ages is beneficial to health and PT ends up dropping as a passive byproduct of aging. In Drosophila, we show that a transient elevation in PT during early-adulthood exerts long-lasting negative impacts on aging trajectories and proteostasis in later-life. Blocking the early-life PT elevation robustly improves life-/health-span and prevents age-related protein aggregation, whereas transiently inducing an early-life PT surge in long-lived fly strains abolishes their longevity/proteostasis benefits. The early-life PT elevation triggers proteostatic dysfunction, silences stress responses, and drives age-related functional decline via juvenile hormone-lipid transfer protein axis and germline signaling. Our findings suggest that PT is adaptively suppressed after early-adulthood, alleviating later-life proteostatic burden, slowing down age-related functional decline, and improving lifespan. Our work provides a theoretical framework for understanding how lifetime PT dynamics shape future aging trajectories.

Idioma originalEnglish (US)
Número de artículo5021
PublicaciónNature communications
Volumen14
N.º1
DOI
EstadoPublished - dic 2023

ASJC Scopus subject areas

  • General Chemistry
  • General Biochemistry, Genetics and Molecular Biology
  • General Physics and Astronomy

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