Table 1. Antibodies used for IHC analysis.
| Markers | Company | Clone | Dilution | Antigen retrival | Incubation condition (min, °C) | Assessment | cutoff |
|---|---|---|---|---|---|---|---|
| ER | Neomarkers | SP1 | Pre-diluted | EDTA pH8 | 32,37 | N | 1% |
| PR | Ventana | IE2 | Pre-diluted | EDTA pH8 | 32,37 | N | 1% |
| AR | Dako | AR441 | 1:100 | EDTA pH8 | 56,37 | N | 1% |
| Ki67 | Ventana | 41912 | Pre-diluted | EDTA pH8 | 32,37 | N | 14% |
| EGFR | Ventana | 3C6 | Pre-diluted | EDTA pH8 | 32,37 | M | 5% |
| HER2 | Ventana | 4B5 | Pre-diluted | EDTA pH8 | 16,37 | M | 3+ |
| CK5/6 | Dako | D5/16 B4 | 1:40 | EDTA pH8 | 32,37 | C,M | 5% |
| CK14 | Neomarkers | LL002 | 1:100 | EDTA pH8 | 32,37 | C,M | 5% |
| c-kit | Dako | 104D2 | 1:300 | EDTA pH8 | 32,37 | C,M | 5% |
| P63 | Ventana | 4A4 | Pre-diluted | EDTA pH8 | 32,37 | N | 5% |
| Synaptophysin (SYN) | Novocastra | 27G12 | 1:50 | EDTA pH8 | 32,37 | C,M | 1% |
| Chromogranin (CG) | Biogene | MU-126-UC | 1:200 | EDTA pH8 | 32,37 | C,M | 1% |
| SOX2 | Ventana | SP76 | Pre-diluted | EDTA pH8 | 32,37 | N | 1% |
| vimentin | Dako | V9 | 1:2000 | EDTA pH8 | 24, RT | C, M | 10% |
| p-cadherin | BD transduction lab | 56/p-cad | 1:200 | EDTA pH8 | 32,37 | C,M | 10% |
| CD44 | Ventana | SP37 | Pre-diluted | EDTA pH8 | 32, 37 | M | 5% |
| ALDH | BD transduction lab | 44/ALDH | 1:600 | EDTA pH8 | 32, 37 | C | 5% |
| DCLK1 | Abcam | Polyclonal | 1:100 | Citrate pH6 | 32, 37 | C | IHC score 4 |
‘N’: nuclear; ‘C’: cytoplasmic; ‘M’: membraneous