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Fig. 1 | Journal of Biological Engineering

Fig. 1

From: Engineering and monitoring cellular barrier models

Fig. 1

Transepithelial transport routes and intercellular junctions. a Paracellular and transcellular pathways across an epithelial layer. b, c Structure and localization of TJ strands including (b) freeze-fracture replica electron microscopic image (scale bar, 200 nm) and (c) ultrathin sectional view (scale bar, 50 nm). Mv, microvilli; Ap, apical membrane; Bl, basolateral membrane. Adapted by permission from Macmillan Publishers Ltd.: Nature Reviews Molecular Cell Biology [1], copyright 2001. d Schematic representation of the intercellular space and the junctional protein complex

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