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. 2013 Aug 29;17(8):1016–1024. doi: 10.1111/jcmm.12111

Fig. 4.

Fig. 4

(A) Transmission electron microscopy image shows direct membrane-to-membrane contact (rectangular mark) between a telocyte (TC) and a putative stem cell (SC). M: melanocytes; n: nerves; AFL: anterior fibroblast layer. A TC with three telopodes (Tp1–Tp3) can be seen in the stroma of the iris. Tp3 extends between M and the dichotomous pattern of branching is noticeable. (B, C) Higher magnification of the TC-SC heterocellular connection (from rectangular marked area in A) – serial ultrathin sections. Tp2 and Tp3 enclose the putative SC. Small point contacts (arrows) connect the telocyte with the stem cell. Scale bars: A – 2 μm; B, C – 0.5 μm.