CBX2 and neoplasm: Similar results were also obtained for CBX2 (tumor specimens: 6.85 ± 0.38; normal ovarian tissues: 1.15 ± 0.20, P < 0.01) and CBX3 (tumor specimens: 8.65 ± 0.31; normal ovarian tissues: 0.54 ± 0.12, P < 0.01) protein expression.