MYB and cervical carcinoma: Furthermore, to determine whether si‐MYB or oe‐MYB affects the expression of the HPV E7 oncoprotein, we examined HPV E7 levels in MYB‐knockdown or MYB‐overexpressing SiHa and HeLa cells (cervical cancer cell lines harboring integrated HPV16 and HPV18 DNA, respectively).