Comment on

• Non-cell autonomous effect of glia on motor neurons in an embryonic stem cell-based ALS model.

  Di Giorgio FP, Carrasco MA, Siao MC, Maniatis T, Eggan K. Di Giorgio FP, et al. Nat Neurosci. 2007 May;10(5):608-14. doi: 10.1038/nn1885. Epub 2007 Apr 15. Nat Neurosci. 2007. PMID: 17435754 Free PMC article.
• Astrocytes expressing ALS-linked mutated SOD1 release factors selectively toxic to motor neurons.

  Nagai M, Re DB, Nagata T, Chalazonitis A, Jessell TM, Wichterle H, Przedborski S. Nagai M, et al. Nat Neurosci. 2007 May;10(5):615-22. doi: 10.1038/nn1876. Epub 2007 Apr 15. Nat Neurosci. 2007. PMID: 17435755 Free PMC article.