Transgene Expression	IHC or ISH
Nuclear receptors	ER, PR
Myoepithelium	Smooth Muscle Actin
Luminal Cell	Cytokeratin, Muc-1, casein, lactalbumin, lactogloblin
Basement Membrane	Laminin, collagen IV, PAS,
Proliferation (S-phase)/Apoptosis	Ki67/Tunel assays
Other	Vascular markers (CD31[PECAM],( SMA), neuroendocrine , p53