Human adipose-derived stem cells display myogenic potential and perturbed function in hypoxic conditions.

Evidence from laboratory and animal studies provides groundwork for understanding mechanisms and potential before human studies continue.

• Level A · Stronger Clinical Evidence
• Level B · Emerging clinical evidence with positive signals
• Level C · Early human research exploring benefits
• Level D · Scientific groundwork from lab and animal studies
• Emerging · Emerging topic under active research

Abstract (original English)

Here, we enriched a human cell population from adipose tissue that exhibited both mesenchymal plasticity, self-renewal capacity, and a cell-surface marker profile indistinguishable from that of bone marrow-derived mesenchymal stem cells. In addition to adipogenic and osteogenic differentiation, these adipose-derived stem cells displayed skeletal myogenic potential when co-cultured with mouse skeletal myocytes in reduced serum conditions. Physical incorporation of stem cells into multinucleated skeletal myotubes was determined by genetic lineage tracing, whereas human-specific antibody staining was employed to demonstrate functional contribution of the stem cells to a myogenic lineage. To investigate the effects of hypoxia, cells were maintained and differentiated at 2% O(2). In contrast with reports on bone marrow-derived stem cells, both osteogenic and adipogenic differentiation were significantly attenuated. In summary, the relative accessibility of adipose-derived mesenchymal stem cells from human donors provides opportunity for molecular investigation of mechanistic dysfunction in disease settings and may introduce new prospects for cell-based therapy.

Evidence level

Evidence from laboratory and animal studies provides groundwork for understanding mechanisms and potential before human studies continue.

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