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. 2018 Mar 6;9:157. doi: 10.3389/fphys.2018.00157

Figure 3.

Figure 3

TREK-1 channel are expressed in longitudinal smooth muscle (LM) tissue of both mouse ileum and colon. (A3,C) (ileum) and (B3,D) (colon) show overlays of cell specific markers (green) and the TREK-1 channel marker (red). For clarity, (A1,A2) (ileum) and (B1,B2) (colon) show individual images from corresponding positive merges in smooth muscle. Within the longitudinal smooth muscle layer, TREK-1 channels were distributed in α-actinin-immunopositive smooth muscles in both ileum (A3) and colon (B3). (C,D) show overlays for NOS immunoreactive myenteric plexus (MP) neurons and the TREK-1 channel in ileum and colon respectively. A signal corresponding to the TREK1 channel subunit was not detected in neuronal tissue of either ileum or colon. Scale bars represent 10 μm.