Thereafter, we inoculated BxPC-3 and MIA-PaCa2 cell lines into immunodeficient mice to construct a mouse tumorigenic model, and detected the transcription levels of SDC1 and ITGA2, by qRT-PCR, in tumor tissues on the fifth and tenth days after tumorigenesis by qRT-PCR (Fig. 8E,F). This evidence concerns the gene ITGA2 and neoplasm.