FIGURE 1.

SVF cells and SVF cell sheets. (A) SVF cells are spindle-shaped or polygonal (scale bar: 200 μm). (B) HE staining of SVF cells, showing spindle-shaped and swirling arrangement (scale bar: 100 μm). (C) Overview of SVF cell sheets. (D) Scanning electron microscopy observation of SVF cell sheets, showing cells interconnected and fused, arranged closely with abundant extracellular matrix deposition between cells (scale bar: 50 μm).