Aldo-keto reductases (ARKs), a group of reductases that rely on nicotinamide adenine dinucleotide (NADH) and nicotinamide adenine dinucleotide phosphate (NADPH) to catalyze carbonyl, are widely found in various organisms, which play an important role in the physiological and pathological processes of human. Aldo-keto reductase family 1 member C2 (AKR1C2) as a member of the human ARKs family, can regulate steroid hormones and is abnormally expressed in many cancers. According to whether the tumor can be affected by hormones, we divide malignancies into hormone-dependent and hormone-independent types. Studies have shown that AKR1C2 is involved in regulating tumor invasion, migration, and other malignant phenotypes, eliminating reactive oxygen species (ROS), promoting chemotherapy resistance of tumor cells, and has prognostic value in some cancers. Here, we focus on the role and clinical significance of AKR1C2 in different types of tumors.
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