Participation of peribiliary glands in biliary tract pathophysiologies

Table 1 Primary antibodies and positive control tissue

Primary antibody	Clone (product code)	Company	Optional dilution	Antigen retrieval method	Positive control (N/C/M)
PDX1	goat poly. (sc-14664)	Santa Cruz	1:100	Citrate buf. AC	Islet cells in the human pancreas
HES1	rabbit poly. (H2034-35)	US Biological	1:500	Citrate buf. MW	Human fibroblasts (N)
CXCR4	mouse mono. (35-8800)	ZYMED	1:100	PK	Neural cells in the human brain (M)
CD44s	mouse mono. (M 7082)	Dako	1:100	Dako Target Retrieval Solution No.S1700	Human fibroblasts (M/C)
SOX9	rabbit poly. (AB5535)	MILLIPORE	1:1000	Boro buf. PC	Embryonic tissue (N)
EpCAM	mouse mono. (ab46714)	Abcam	1:5	Dako Target Retrieval Solution No.S1700	Bile ducts in the human liver (M)

Poly: Polyclonal; Mono: Monoclonal; AC: Autoclave; MW: Microwave; PK: Proteinase K; PC: Pressure Cooker; N: Nuclear; C: Cytoplasm; M: Membrane; PDX1: pancreatic duodenal homeobox factor 1; HES1: Hairy and enhancer of split 1; CXCR4: Chemokine receptor type 4; EpCAM: Epithelial cell adhesion molecule.