LDHA and cancer: Several of the 19 genes known to encode the ALDH family, such as ALDH1A1, ALDH1A2, ALDH1A3, ALDH1A7, ALDH3A1, ALDH4A1, ALDH5A1, ALDH6A1, and ALDH9A1, are considered the cancer stem cells (CSC) markers involved in drug resistance [11,12,13].