LDHA and neoplasm: Dot1Li (5 μm, 5 days) significantly inhibited the ALDH+ population from primary HGSOC‐derived cells (Figure 6E and n = 3 tumors), and decreased the number of spheroids (Figure 6F), even though there was variability in the capacity to form spheroids across different tumor‐derived primary cells at baseline (n = 6 tumor specimens).