From: Phosphatidylinositol 3-kinase pathway activation in breast cancer brain metastases
Biomarker
Gain
Loss
Concordance
PTEN
1 (8.3%)
10 (83.3%)
p-AKT
2 (16.6%)
8 (66.6%)
p-S6
3 (25.0%)
7 (58.3%)