 human bone marrow contains multiple cell types which are responsible for regulating hematopoiesis. Single cell INA sequencing has allowed researchers to identify six distinct cell types within the bone marrow, each with its own unique characteristics and functions. The study also found that these cell types interact with one another and can influence the development of blood cells. Additionally, the study discovered that certain cell types have the ability to differentiate into other cell types, suggesting that the bone marrow may be more complex than previously thought. This article was authored by Hengja Lee, Sandro Braunig, Parosha Dupola, and others.