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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Osteogenesis in in vivo diffusion chamber cultures of human marrow cells.

The osteogenic diffusion chamber culture of rodent marrow cells is a well established system. In the present study, marrow cells from children and adult human donors were incubated in diffusion chambers implanted intraperitoneally in athymic mice. After 4 or 8 weeks, the chamber content was examined by light and electron microscopy. Child-cell cultures showed osteogenic tissue consisting of a mineralizing fibrous component and cartilage. Ultrastructurally, the fibrous tissue was similar to osteoid and exhibited osteoblast-like cells and mineralizing nodules. Mineral aggregates were also found in the cartilage. These features in child-cell chambers were similar to those found in control chambers of rabbit marrow cells. Adult-cell chambers showed only unmineralized fibrous tissue. These results render previous findings in animal-cell diffusion chamber systems relevant to the understanding of bone formation in man. It is suggested that the difference between child- and adult-cell chambers reflects an age-related decline in the number of marrow osteoprogenitor cells or their potential to undergo terminal osteogenic differentiation.[1]


  1. Osteogenesis in in vivo diffusion chamber cultures of human marrow cells. Bab, I., Passi-Even, L., Gazit, D., Sekeles, E., Ashton, B.A., Peylan-Ramu, N., Ziv, I., Ulmansky, M. Bone and mineral. (1988) [Pubmed]
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