, Volume 92, Issue 2, pp 97-103
Date: 12 Sep 2008

Isolation, characterisation and osteogenic potential of human bone marrow stromal cells derived from the medullary cavity of the femur

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Marrow stromal cells (MSC) are increasingly being introduced in orthopaedic practice as potentially powerful effectors of bone regeneration. Since cell recovery of MSC is affected by a high degree of individual variability, sources for collecting adequate amounts of safe and effective MSC under routine conditions are needed. We analysed if femoral bone marrow, which is usually discarded during total hip arthroplasty procedures, is a reliable source of MSC to enhance bone healing and regeneration. Mononuclear cells were isolated, assayed for typical MSC markers, harvested under appropriate culture conditions and evaluated for their ability to differentiate into osteoblasts. Cell recovery and osteogenic potential were independent from donor gender or age, suggesting that elderly individuals are eligible for autologous cell therapy. Although heterogeneous, the pool of MSC recoveredfrom femoral marrow without further in vitro selection or manipulation proved highly effective in proliferating and differentiating along the osteogenic lineage. In conclusion, this source of MSC offers a valuable tool to be used to promote osteogenesis and implant fixation.