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Figure 2: Western Blot analysis of Schwann cell populations prior to transplantation: nontransfected SCs, SCphysiol, show less amount of FGF-2 isoforms (18kD, 21kD, and 23kD) as SCs genetically modified to overexpress FGF-2-18kD, SC-FGF-218, or FGF-2-21/23kD, SC-FGF-221/23. As positive controls served cell lysates from FGF-2 isoform overexpressing PC12 cells.