Research Article

Pretreatment with Gemcitabine/5-Fluorouracil Enhances the Cytotoxicity of Trastuzumab to HER2-Negative Human Gallbladder Cancer Cells In Vitro and In Vivo

Figure 1

Microphotographs of dual-color FISH for HER2 detection in GBC cell lines (×1,000). SpectrumGreen probe for centromere 17 and SpectrumOrange probe for HER2 gene. The HER2:CEP17 ratio in NOZ and GB-D1 cell lines was 1.2 and 1.08, respectively.