Their infection efficiency was screened based the levels of EGFP expression and their ZEB1 knockdown levels detected by qPCR in the infected C918 cells (data not shown), the viral construct with the ZEB1-specific interference nucleotide sequence 5′- AACAATACAAGAGGTTAAA -3′ was selected for further ZEB1 functional studies with OCM1 and C918 (Supplemental Table 1). Here, OCM is linked to infection.