Wing disc associated muscle cells in Drosophila
Muscles require constant repair and regeneration during the life cycle of an organism. This repair/growth is dependent on specialized cells called muscle stem cells/satellite cells. The stem cells reside in the vicinity of muscle fibers and stay quiescent under normal conditions. Following an injury or a developmental signal, stem cells exit quiescence, undergo proliferation, and differentiate to make up the muscle mass. Mammalian studies have highlighted the role of diet in regulating muscle growth/repair. However, the detailed mechanisms through which this regulation takes place is not clearly understood. The long-term objective of our lab is to understand how diet controls muscle health during development, aging and myopathies in Drosophila.
The current goals of the Vishal Lab:
Dissect the mechanisms through which diet-dependent Akt /Tor signaling regulates the muscle stem cell pool and muscle growth during development.
Understand how inter-tissue communication regulates stem cell population.
Determine the role of Akt /Tor signaling on satellite cell function during muscle aging.