Table 1: Antibodies used for IHC staining and their characteristics.

1º Ab

Ig type

Concentration

Antigen retrieval

Serum

2 º Ab

Anti α-smooth muscle actin

(mouse monoclonal)

(Abcam)

 

 

IgG2a

 

 

2 µg/mL

0.1% Triton-100, 20 min

goat

Goat anti-mouse IgG H&L (Biotin)

Anti-MUC 1

(rabbit monoclonal)

(Abcam)

 

IgG

 

1.53µg/mL

0.1% Triton-100, 20 min

horse

Biotinylated anti-rabbit IgG

Isotypic control

(goat anti-mouse)

(Abcam)

IgG2a

 

1.1 µg/mL

 

 

0.1% Triton-100, 20 min

 

horse

Biotinylated anti-rabbit IgG

Isotypic control

(goat anti-mouse)

(Abcam)

IgG

1.53 µg/mL

0.1% Triton-100, 20 min

horse

Biotinylated anti-rabbit IgG

Anti-cytokeratin 5 [K5]

(rabbit monoclonal)

(Abcam)

IgG

1 µg/mL

Citrated buffer x1, heated for 20min

horse

Biotinylated anti-rabbit IgG

Anti-cytokeratin 19 [CK19]

(mouse monoclonal)

(Abcam)

IgG2a

1 µg/mL

Citrated buffer x1, heated for 20min

horse

Biotinylated anti-mouse IgG