To investigate if Sdc-1 in its different forms influences the expression of invasion-related factors, we analyzed the expression levels of E-cad, MMP2, and tissue inhibitor of metalloproteinases 1 (TIMP-1), which are also associated with the metastasis of cervical cancer cells (28, 29) by qRT-PCR. The gene discussed is CDH1; the disease is cervical carcinoma.