Should I Stay or Should I Flow: HSCs Are on the Move!

Summary Stem cell biologists have been yearning to visualize hematopoietic stem cells (HSCs) in live animals since Kiel et al. (2005) first visualized them in bone cavities. With two recent papers from Christodoulou et al. (2020) and Upadhaya et al. (2020) , we can all now see how HSCs behave in their niches!