TABLE 1.

HPV-negative cell lines used in infections

Cell lineCharacterizationReference
HFKLow-passage-number HFKsNone
HaCaTSpontaneously immortalized human keratinocyte cell line from adult skin3
NIKSSpontaneously immortalized HFK cell line1
N/TERT-1HFK cell line immortalized by telomerase catalytic subunit9
C-33ACervical carcinoma cell line58
A431Epidermoid carcinoma cell line15
C127Murine mammary tumor cell line27