5 years ago

Three-dimensional map of nonhematopoietic bone and bone-marrow cells and molecules.

Leo Kunz, Konstantinos D Kokkaliaris, Timm Schroeder, Daniel L Coutu
The bone marrow (BM) microenvironment contains many types of cells and molecules with roles in hematopoiesis, osteogenesis, angiogenesis and metabolism. The spatial distribution of the different bone and BM cell types remains elusive, owing to technical challenges associated with bone imaging. To map nonhematopoietic cells and structures in bone and BM, we performed multicolor 3D imaging of osteoblastic, vascular, perivascular, neuronal and marrow stromal cells, and extracellular-matrix proteins in whole mouse femurs. We analyzed potential interactions between cells and molecules on the basis of colocalization of markers. Our results shed light on the markers expressed by different osteolineage cell types; the heterogeneity of vascular and perivascular cells; the neural subtypes innervating marrow and bone; the diversity of stromal cells; and the distribution of extracellular-matrix components. Our complete imaging data set is available for download and can be used in research in bone biology, hematology, vascular biology, neuroscience and extracellular-matrix biology.

Publisher URL: http://doi.org/10.1038/nbt.4006

DOI: 10.1038/nbt.4006

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