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. 2014 Oct 29;9(10):e111375. doi: 10.1371/journal.pone.0111375

Figure 3. Ultrastructures of primary HUCs.

Figure 3

Cultured HUCs were analyzed by TEM. (A, B) a HUC with two nuclei (N) and many discoid fusiform vesicles (DVF) - *denotes lumens of DFV; B is a higher magnification of the square area identified in A - MVB denotes multivesicular body; (C) another example of MVB and DFV in a HUC; (D) presence of uroplakins plaques (Uro P, dark line) on the cell membrane of an umbrella cell; (E) formation of lateral interdigitation between two adjacent HUCs, a higher magnification of the identified was shown in F; (F) presence of numerous desmosomes (Des, arrowheads) within a well-formed lateral interdigitation of two adjacent HUCs. Bar scale is equal to 1 µm (in A, B, E and F) and 0.1 µm (in C and D).