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. 2013 Apr 30;13:215. doi: 10.1186/1471-2407-13-215

Figure 1.

Figure 1

Immunhistochemical expression of HDAC2. Low (1a) expression of HDAC2 in invasive breast cancer, in this sample, only a few tumor cells (≤ 20%) show a weak HDAC2 expression (IRS 2; magnification power 400). Figure 1a shows the predominant negative expression. High (1b) expression of HDAC2 in invasive breast cancer, most of the tumor cells (≤ 70%) show a strong expression of HDAC2 (IRS 9; magnification power 400). The inset shows a negative expression of HDAC2 in a palatine tonsil that serves as an internal negative control (magnification power 400).