AQP6 and ovarian cancer: Figure 8 showed the prognostic significance of AQP6 in the database. Affymetrix ID for AQP6/AQP2L is 216219_at. The elevated expression of AQP6/AQP2L mRNA was associated with favorable OS for all ovarian cancer patients and endometrioid ovarian cancer patients, HR = 0.83 (0.73–0.94), P=0.0045 (Figure 8A), HR = 0.12 (0.01–1.1), P=0.025 (Figure 8C), respectively. While outcome measures regarding serous ovarian cancer, AQP6/AQP2L mRNA showed no any correlation with OS, HR = 0.86 (0.73–1.01), P=0.066 (Figure 8B).