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. 2012 Jun 6;3:91. doi: 10.3389/fneur.2012.00091

Figure 3.

Figure 3

PMA potentiates vestibular synapse formation in vitro. Eighteen DIV co-cultures of P6 rat ganglion (G), utricle (U), and crista (C) in presence of PMA (A–E) illustrates the potentiation of neurite outgrowth and synapse formation in vitro. Insets show higher magnification of utricles (B,C) and cristae (D,E). Multiple neurites were observed inside the utricles and detailed observation [inset, (B)] on nerve endings reconstructed in 3D (C) showed the additional formation of calyceal innervations in utricles. In cristae, PMA increased the number of neurites entering the sensory epithelia (D), and the number of calyces as shown in the 3D reconstruction (E). Neurofilaments stained in green and nuclei in red. Scale bar 100 μm (A).