Fig. 1. Intracellular localization of transfected GFP-wt or mtSOD1 in cultured primary neurons from G93A-SOD1 mice. (A) Primary cortical neurons stained with MAP-2 (red) and DAPI (blue) nuclear counterstain. Mock transfection did not affect the cellular localization in both WT and MT neurons. In WT neurons, transfected GFP-wtSOD1 predominantly colocalized in the cytoplasm and the nucleus, whereas transfected mtSOD1 localized in the cytosol. Scale bar=50 µm. (B) Cortical neurons were transfected with wt and mtSOD1, and then mislocalization and cell death were examined by DAPI staining. In WT neurons transfected with GFP-mtSOD1, increased mislocalization and cell death were observed. Data are expressed as mean values (±standard error).
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