Figure 2.

Scanning electron microscopy images of 5 µm cross-sections of 50% Matrigel containing myeloma cells, EPCs and MSCs cultured for 14 days.

Notes: (A) Gel meshwork with various pore sizes with the majority <200 nm. The scale bar represents 5 µm. (B) Cross-section of a cell incorporated into the gel. The scale bar represents 5 µm. (C) Zoom of (B), showing more details of the cell and meshwork of the surrounding gel. The scale bar represents 3 µm. Abbreviations: EPCs, endothelial progenitor cells; MSCs, mesenchymal stromal cells; N, nucleus; NC, nucleolus; PM, plasma membrane.