but to a certain percentage these proteins could also be detected in the cytoplasma of malignant cells : in breast cancer , sp1 was present in 52.6 % of cases , pp5 in 63.2 % , pp10 in 68.4 % , pp11 in 55.6 % and pp12 in 31.6 % .
C0334227
malignant cells
C0006142
breast cancer