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. 1998 Apr 15;18(8):3059–3072. doi: 10.1523/JNEUROSCI.18-08-03059.1998

Fig. 3.

Fig. 3.

GFRα-1 and GFRα-2 expression in IB4 cells. GFRα-1 and GFRα-2 are coexpressed in one group of IB4 cells, expressed separately in other groups, and not expressed at all in a fourth group. Serial sections are shown triple-labeled for trkA (a, d), IB4 (b, e), and either GFRα-1 (c) or GFRα-2 (f) mRNAs. A IB4 cell expressing only GFRα-1 is identified by an arrow. Anarrowhead indicates a IB4 cell that expresses only GFRα-2. The double arrow indicates a IB4 cell that expresses both GFRα-1 and GFRα-2. Note that none of these cells are trkA immunoreactive. The star indicates a IB4 cell that expresses neither GFRα-1 nor GFRα-2. This cell is also trkA immunoreactive. Also shown is a large cell (asterisk) that expresses both GFRα-1 and GFRα-2. It is not IB4-labeled or trkA immunoreactive. Scale bar, 50 μm.