David Walker

David Walker is a Professor and Vice Chair of Academic Personnel in the Department of Integrative Biology and Physiology at the University of California, Los Angeles. He leads a research lab focused on understanding the molecular and cellular basis of aging, utilizing Drosophila melanogaster to investigate mechanisms such as mitochondrial dysfunction, autophagy, and intestinal barrier integrity. His work aims to identify therapeutic targets for age-related diseases.

Education:

• B.S., Genetics, Queen's University Belfast (1995)
• MRes, Molecular Biology, University of Manchester (1996)
• Ph.D., Genetics, University of Manchester (2000)

Walker's research interests center on the biological processes driving aging, with emphasis on mitochondrial dynamics, neurodegeneration, and gut-microbiota interactions. His lab employs genetic, molecular, and physiological approaches in Drosophila to dissect how cellular deterioration impacts lifespan and healthspan, bridging insights to human aging pathologies. Key themes include the role of autophagy adaptors (e.g., p62/SQSTM1), mitochondrial fission, and intestinal homeostasis in longevity.

His recent publications (2014–2024) reveal a consistent focus on brain aging, mitophagy, and gut-brain axis disruptions, with trends toward identifying midlife interventions for healthspan extension. Articles frequently integrate cellular stress responses, metabolic regulation, and neurodegeneration, highlighting Drosophila as a versatile model for translational aging research.

No scientific awards, prizes, or fellowships are mentioned in the provided text.

While specific grants or student advisees are not detailed, Walker's lab actively mentors researchers and contributes to collaborative projects on aging mechanisms. Future directions may involve exploring mitochondrial-immune interactions and novel longevity pathways.

Walker directs a Drosophila-focused laboratory at UCLA, emphasizing genetic screens and mechanistic studies to uncover evolutionarily conserved aging pathways. The team investigates tissue-specific aging cascades, including neuronal and intestinal systems, to develop strategies for mitigating age-related decline.