Joe Quadrilatero

Joe Quadrilatero is a Professor in the Department of Kinesiology and Health Sciences at the University of Waterloo, with a cross-appointment in the Department of Biology, Faculty of Science. He leads the Skeletal Muscle Biology and Cell Death Laboratory, where his research focuses on fundamental cellular processes in skeletal muscle biology.

Dr. Quadrilatero completed his PhD at the University of Waterloo, establishing a strong foundation in muscle physiology and cellular biology that has guided his subsequent research career. His academic journey has positioned him as a leading researcher in the field of skeletal muscle cell death mechanisms.

Quadrilatero's primary research focus centers on cell death processes, particularly apoptosis and autophagy, in skeletal muscle. His work investigates how mitochondrial signaling and dynamics influence skeletal muscle development, function, regeneration, and overall health. The Skeletal Muscle Biology and Cell Death Laboratory is at the forefront of understanding critical cellular mechanisms, with specific emphasis on autophagic and mitophagic signaling, apoptotic signaling, the interplay between autophagy and apoptosis, the role of mitochondrial dynamics in muscle regeneration, and the effects of physical activity and diet on these cellular processes. His research has revealed that autophagy is required for skeletal muscle differentiation and that it regulates caspase activation and degrades damaged mitochondria, protecting muscle cells from death.

Analysis of Quadrilatero's publication record reveals a consistent focus on mitochondrial biology and cellular death mechanisms in skeletal muscle. His work spans fundamental cellular processes to applied research on exercise and nutrition interventions. A notable trend is the increasing focus on mitophagy (mitochondrial autophagy) in recent years, reflecting the growing recognition of mitochondrial quality control mechanisms in muscle health and disease. His publications appear in high-impact journals across cell biology, physiology, and muscle research fields, demonstrating the interdisciplinary nature of his work.

• He has made significant contributions to methodological standards in the field, participating in the development of guidelines for monitoring autophagy.
• His laboratory receives funding from major Canadian research agencies to investigate fundamental mechanisms of muscle biology.
• He teaches advanced courses including KIN 406: Physiology of Skeletal Muscle Aging & Disease and KIN 606: Molecular Basis of Disease.

Dr. Quadrilatero actively supervises undergraduate thesis students, MSc and PhD candidates, and postdoctoral fellows in the Skeletal Muscle Biology and Cell Death Laboratory. The lab employs a range of sophisticated techniques including cell and molecular biology approaches, microscopy, cell culture, animal models, and cellular imaging to investigate fundamental mechanisms of muscle biology. The lab's work has important implications for understanding muscle wasting conditions, aging-related muscle decline, and potential therapeutic interventions targeting cellular quality control mechanisms.