PIK3CA and cervical cancer: Previous research has shown that the genes SHKBP1, ERBB3, CASP8, HLA-A, TGFBR2, PIK3CA, EP300, FBXW, HLA-B, PTEN, NFE2L2, ARID1A, KRAS, and MAPK1 are frequently mutated in cervical cancer (9).