Haematopoietic system articles from across Nature Portfolio

This study develops a method for spatially resolving multipotent haematopoiesis, erythropoiesis and lymphopoiesis in mice and uncovers heterogeneous haematopoietic stress responses in different bones.

Circulating cell-free DNA (cfDNA) has diagnostic potential, and clarifying its origins will aid in the minimally-invasive detection and monitoring of disease. Here, authors find that physiologically, megakaryocytes are major sources of cfDNA, while erythroblasts also release small amounts of cfDNA.

Bone marrow adiposity is linked to disease, and it is unknown how it is modulated during space travel. Here, the authors show that astronauts returning from ISS missions had decreased marrow fat and increased hematopoiesis and bone formation, suggesting that adipose reserves in the bone marrow might be used as an energy source to counteract anemia and bone loss associated with space flight.

Highly efficient generation of platelets in the vasculature. Here, Zhao et al. show that the mouse platelet precursor cell, megakaryocytes, generate physiological numbers of functional platelets when passaged repeatedly through pulmonary vasculature.

A vascularized bone-marrow-on-a-chip incorporating patient-derived CD34⁺ cells recapitulates haematopoietic defects associated with bone-marrow injury.