Skip to main content

Table 3 Concordance of PI3K biomarkers between primary breast tumors and matched breast cancer brain metastases (n = 12)

From: Phosphatidylinositol 3-kinase pathway activation in breast cancer brain metastases

Biomarker

Gain

Loss

Concordance

PTEN

1 (8.3%)

1 (8.3%)

10 (83.3%)

p-AKT

2 (16.6%)

2 (16.6%)

8 (66.6%)

p-S6

3 (25.0%)

2 (16.6%)

7 (58.3%)