Differentiation capacity toward mesenchymal cell lineages of bone marrow stromal cells established from temperature-sensitive SV40 T-antigen gene transgenic mouse.

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

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• 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)

Stromal cell lines were established from bone marrow of temperature-sensitive T-antigen gene transgenic mice. These stromal cell lines consisted of fibroblasts, endothelial cells, and preadipocytes. We found that these stromal cell lines exhibited phenotypic changes depending on the inactivation of T-antigen and growth condition; one preadipocyte line was induced toward adipocytes and osteogenic cells, and several preadipocyte and endothelial cell lines were induced toward muscle cells and adipocytes. Some cell lines showed bipotential characters. These results indicated that stromal cells consisting of bone marrow hematopoietic microenvironment are derived from multipotent mesenchymal stem cells.

Evidence level

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

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