Figure 6.
Immune synapses-like membrane structures in the CNS. (A) Polarization of TCR/LFA-1 in TMBP-GFP cells 4 d after transfer in spinal cord slices. Confocal imaging, immunostaining with TCR/LFA-1. GFP (green), LFA-1 (red), TCR (blue). TMBP-GFP cells with polarized (closed arrow) and evenly distributed (open arrow) TCR/LFA-1 pattern. (B) Three-dimensional reconstruction of the synapse-like–forming TMBP-GFP cell (indicated cell from Fig. 6 A). (C) Contact plane of a TMBP-GFP cell with synapse-like TCR/LFA-1 polarization (arrow). (D) TMBP-GFP cell (green) contacting a MHC class II+ cell (red). Note the polarization of TCR (blue) at the contact point of the cells. (E) TMBP-GFP cells that form synapse-like TCR/LFA-1 polarizations are “stationary.” Fluorescence video microscopy of living spinal cord tissue 4 d after transfer stained with anti-TCR/LFA-1 antibodies. Numbers indicate the time points of image acquisition. Overlay of GFP (green), TCR (red), and LFA1 (blue) is shown. Bars, 10 μm.