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. Author manuscript; available in PMC: 2013 Feb 1.
Published in final edited form as: Otol Neurotol. 2012 Feb;33(2):244–257. doi: 10.1097/MAO.0b013e31823e287f

Figure 4. Expression of various ErbB receptor proteins and phosphorylated EGF in cultured VS and Schwann cells.

Figure 4

Protein lysates from three primary cultures of VS cells (#1–3) and one Schwann cell culture were used in Western blotting for total EGFR, ErbB2, ErbB3, and ErbB4 (A). A long exposure of the EGFR blot (shown in the right) revealed that normal Schwann cells expressed a low level of EGFR protein compared with strong expression in cultured VS cells. A similar Western blot was performed for phospho-EGFR expression in cultured VS and Schwann cells (B).