FIGURE 7:
In dendrites of hippocampal neurons CBF-A exhibits a granular distribution which correlates with transported Arc, BDNF, and αCaMKII mRNAs. Endogenous CBF-A and Arc (A–C), BDNF (E–G), or CaMKII mRNAs (I–K) were simultaneously monitored by immuno-FISH and confocal microscopy. Scale bar, 10 μm. Magnifications of boxed areas are approximately fivefold in comparison to corresponding overviews. Unbiased statistical quantification of individual CBF-A and Arc (D), BDNF (H), or CaMKIIα (L) RTS-positive granules are based on the immuno-FISH analysis in the top panels. In all cases, linear correlations between the fluorescence intensity levels of CBF-A and RTS-containing transcripts were revealed.