GLS1 expression in ARID1A-negative OCCC is similar to the one of normal tissues. A, Bottom left and its inset, representative image of GLS1 staining in normal ovary. Bottom center and its inset, representative image of GLS1 staining in normal Fallopian tube. Bottom right, representative image of GLS1 staining in ARID1A-negative (−) OCCC. B, Expression levels of GLS1 in ARID1A-negative OCCC and in normal tissues. (ARID1A- vs. normal: P = 0.8285). n = number of clinical specimens per group.