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IGF1R expression in human fetal neurons. Mixed neuronal glial cultures stimulated for 24 h with IFNγ (10 or 100 ng/ml), IL-4 (10 ng/ml), or LPS (not shown) or not (Control) and immunostained for IGF1R using a commercial antibody. IGF1R immunoreactivity (brown) was selectively expressed in small process-bearing cells in these cultures (neurons) without appreciable differences in the expression levels among various culture conditions.
