ALDH3A1 (Aldehyde Dehydrogenase 3 Family Member A1) and ALDH1A3 (Aldehyde Dehydrogenase 1 Family Member A3) are enzymes involved in detoxification, oxidative stress response, and stem cell regulation. Antibodies targeting these proteins are widely used in cancer research, particularly for identifying cancer stem cells (CSCs) and studying metabolic pathways .
ALDH1A3 regulates breast CSC populations by modulating CD24/CD44 expression and metabolic shifts (e.g., oxidative phosphorylation vs. glycolysis) .
ALDH3A1 is overexpressed in corneal epithelium and protects against UV-induced damage, with implications in ocular biology .
High ALDH1 activity correlates with poor prognosis in breast cancer .
ALDH1A3 knockdown reduces tumor-initiating capacity in triple-negative breast cancer (TNBC) models .
ALDH1A3 inhibitors combined with glycolysis blockers (e.g., 2DG) reduce tumor growth in preclinical models .
ALDH3A1’s role in UV protection suggests therapeutic potential in corneal diseases .
ALDH3I1 plays a crucial role in oxidative stress tolerance by effectively detoxifying reactive aldehydes generated during lipid peroxidation. It exhibits a preference for medium- to long-chain saturated aldehydes as substrates, while demonstrating weaker affinity towards the short-chain aldehyde propanal. Notably, ALDH3I1 can utilize both NAD(+) and NADP(+) as cofactors, with the coenzyme preference influenced by the specific substrate involved.