Changes in Pdgfra-positive mesenchymal progenitors during muscle regeneration under normal and obese condition.

Worldwide increases in obese and elderly populations synergistically enhance the incidence of sarcopenia. Accumulation of intermuscular adipose tissue (IMAT) is considered to be a major problem whereby obesity leads to sarcopenic obesity and thus is a promising target for treating this emerging pathological condition. However, while sarcopenic obesity-associated IMAT is suggested to be originated from PDGFRa+ mesenchymal progenitors, processes of their adipogenesis remain largely unexplored. Here we investigated intracellular changes associated with these processes using scRNA-Seq analysis.