Figure 4From: Newborn pig trachea cell line cultured in air-liquid interface conditions allows a partial in vitro representation of the porcine upper airway tissueUltrastructural views of NPTr cells cultured in ALI conditions. Views of the tight junction (A, black arrow) and the desmosome (B, black arrow) between adjacent cells and microvilli (C, D) after three weeks of culture in ALI conditions are presented. Scale bar 1 μm (A), 0.5 μm (B), 1 μm (C), and 0.2 μm (D).Back to article page