Table 3.

Summary of the Immunohistochemical Analysis for the Intrahepatic Bile Ducts of the PCK and Normal Rats

		PCK			Normal
		Fetal liver	Adult liver		Fetal liver	Adult liver
			C-type	F- type
Epithelial markers	Pan-CK	++	++	+	++	++
	CK7	++	++	+	++	++
	CK19	++	++	+	++	++
	E-cadherin	−	+	+	−	+
Mesenchymal markers	Vimentin	+	−	++∼+	+	−
	Desmin	−	−	−	−	−
	α-SMA	−	−	−	−	−
	N-cadherin	−	−	+ ∼−	−	−
	Fibronectin	−	−	++ ∼+	−	−

++, strongly positive; +, moderate to weakly positive; −, negative. CK, cytokeratin; SMA, smooth muscle actin.