NCIt definition : A polymorphic family of intracellular enzymes that catalyze the oxidation of aldehydes
and yield carboxylic acids. High aldehyde dehydrogenase 1 activity may indicate the
presence of stem cells or cancer stem cells (CSC) in a sample.;
NCIt note : The ALDH1 family includes proteins encoded by the human ALDH1A1, ALDH1A2, ALDH1A3,
ALDH1B1, ALDH1L1, and ALDH1L2 genes.;