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Table 2 Characteristics of tissue samples used for the analysis of DCIS on relative gene expression

From: Robustness of biomarker determination in breast cancer by RT-qPCR: impact of tumor cell content, DCIS and non-neoplastic breast tissue

Sample # Tumor cell content [%] DCIS content [%] HER2 status (IHC)
invasive tumor DCIS
1 40–59 10–19 3+ 3+
2 60–79 3+ 3+
3 80–100 3+ 3+
4 80–100 n.a. n.a.
5 20–39 2+ 2+
6 60–79 2+ 3+
7 60–79 20–29 0 0
8 60–79 0 0
9 40–59 0 1+
10 40–59 0 0
11 20–39 1+ 1+
12 40–59 1+ 1+
13 40–59 1+ 2+
14 40–59 0 0
15 60–79 n.a. n.a.
16 60–79 1+ 1+
17 20–39 30–39 0 1+
18 20–39 2+ 3+
19 20–39 0 0
20 20–39 1+ 2+
21 40–59 40–49 1+ 1+
22 20–39 50–60 1+ 2+
23 20–39 1+ 2+
24 40–59 1+ 1+
  1. Different scores of HER2 protein expression in DCIS and corresponding invasive tumor are shown in bold