FIG. 5.

Histology and SEM of acellular porcine medial meniscal tissue after 24 h culture with (A1, B2) human dermal fibroblasts and (C1, D2) porcine medial meniscal cells at 37°C in an atmosphere of 5% (v/v) CO₂ in air. Cells were seeded at the following concentrations: (A1, B2) 6 × 10⁵ cells/cm² and (C1, D2) 4 × 10⁵ cells/cm². Analysis were performed using (1) H&E staining, 200× mag and (2) SEM. Scale bar represents 30 μm. FC, flattened cells; SEM, scanning electron microscopy. Color images available online at www.liebertonline.com/ten.