ALDH1A2-IN-1 is an active site-directed reversible ALDH1A2 inhibitor (IC50=0.91 μM; Kd=0.26 μM) with several hydrophobic interactions[1].
3-Hydroxybenzaldehyde is a precursor compound for phenolic compounds, such as Protocatechualdehyde (HY-N0295). 3-Hydroxybenzaldehyde is a substrate of aldehyde dehydrogenase (ALDH) in rats and humans (ALDH2). 3-Hydroxybenzaldehyde has vasculoprotective effects in vitro and in vivo[1].
CM121 is an active site-directed reversible ALDH1A2 inhibitor (IC50=0.54 μM；Kd=1.1 μM) with a variety of hydrophobic interactions[1].
Alda-1 is a potent ALDH2 agonist, which activates wild-type ALDH2 and restores near wild-type activity to ALDH2*2.
NCT-505 is a potent and selective aldehyde dehydrogenase (ALDH1A1) inhibitor, with an IC50 of 7 nM, and weakly inhibits hALDH1A2, hALDH1A3, hALDH2, hALDH3A1 (IC50s, >57, 22.8, 20.1, >57 μM).
Taraxerone is isolated from Sedum sarmentosum. Taraxerone enhances effects on alcohol dehydrogenase (ADH) and acetaldehyde dehydrogenase (ALDH) activities with EC50 values of 512.42 and 500.16 μM, respectively[1].
Disulfiram is a specific inhibitor of?aldehyde-dehydrogenase (ALDH1), used for the treatment of chronic alcoholism by producing an acute sensitivity to alcohol.
Win 18446 is an orally active testes-specific enzyme ALDH1a2 inhibitor, with an IC50 of 0.3 μM. Win 18446 reversibly inhibits spermatogenesis in many species and inhibits Retinoic acid (HY-14649) biosynthesis from Retinol (HY-B1342) within the testes[1][2].
ALDH1A1-IN-3 (compound 57) is an excellent and selective aldehyde dehydrogenase 1A1 (ALDH1A1) inhibitor with an IC50 value of 0.379 μM. ALDH1A1-IN-3 can effectively improve glucose consumption in HepG2 cells. ALDH1A1-IN-3 can be used for researching glucose metabolism improvement[1].
4-Hydroxynonenal (4-HNE) is an α,β unsaturated hydroxyalkenal and an oxidative/nitrosative stress biomarker. 4-Hydroxynonenal is a substrate and an inhibitor of acetaldehyde dehydrogenase 2 (ALDH2). 4-Hydroxynonenal can modulate a number of signaling processes mainly through forming covalent adducts with nucleophilic functional groups in proteins, nucleic acids, and membrane lipids. 4-Hydroxynonenal plays an important role in cancer through mitochondria[1][2][3].
NCT-501 hydrochloride is a potent and selective theophylline-based inhibitor of aldehyde dehydrogenase 1A1 (ALDH1A1), inhibits hALDH1A1 with IC50 of 40 nM, typically shows better selectivity over other ALDH isozymes and other dehydrogenases (hALDH1B1, hALDH3A1, and hALDH2, IC50 >57 μM)[1][2].
BODIPY aminoacetaldehyde (BAAA) is a fluorescent substrate for both murine and human aldehyde dehydrogenase (ALDH). BODIPY aminoacetaldehyde consists of an aminoacetaldehyde moiety bonded to the BODIPY fluorochrome and can be used to label stem cells[1].
ALDH3A1-IN-2 (Compound 19) is a potent inhibitor of ALDH3A1 with an IC50 of 1.29 μM. Aldehyde dehydrogenases (ALDHs) are overexpressed in various tumor types including prostate cancer. ALDH3A1-IN-2 has the potential for the research of cancer diseases[1].
NCT-506 is an orally bioavailable aldehyde dehydrogenase 1A1 (ALDH1A1) inhibitors with an IC50 of 7 nM[1].
RV01 is an analogue of resveratrol, inhibits DNA damage, reduces acetaldehyde dehydrogenase 2 (ALDH2) mRNA expression induced by ethanol, and exhibits hydroxyl radical scavenging activity[1]. RV01 decreases iNOS expression, with anti-neuroinflammatory activity[2].
ALDH1A3-IN-3 (compound 16) is a potent inhibitor of ALDH1A3, with an IC50 of 0.26 μM. ALDH1A3-IN-3 is also a good ALDH3A1 substrate. ALDH1A3-IN-3 can be used for the research of prostate cancer[1].
KS100 is a potent ALDH inhibitor with IC50s of 230, 1542, 193 nM for ALDH1A1, ALDH2, and ALDH3A1, respectively. KS100 shows antiproliferative and anticancer effects with low low toxic. KS100 significantly increases ROS activity, lipid peroxidation and toxic aldehyde accumulation. KS10600 induces apoptosis and cell cycle arrest at the G2/M phase[1].
Aldehyde dehydrogenase NAD(P) (ALDH) catalyzes the oxidation of aldehydes into their corresponding carboxylic acids with the concomitant reduction of the cofactor NAD(P) into NAD(P)H, is often used in biochemical studies. The aldehyde dehydrogenases (ALDHs) are one of many enzyme systems the body utilizes to alleviate aldehyde stress[1].
ALDH2 modulator 1 is a potent and orally active aldehyde dehydrogenase-2 (ALDH2) modulator. ALDH2 modulator 1 reduces blood alcohol levels in mice[1].
IGUANA-1 is a potent inhibitor of ALDH1B1, which is a mitochondrial enzyme that promotes colorectal and pancreatic cancer. IGUANA-1 has significant inhibition against cancer cells[1].
KS106 is a potent ALDH inhibitor with IC50s of 334, 2137, 360 nM for ALDH1A1, ALDH2, and ALDH3A1, respectively. KS106 shows antiproliferative and anticancer effects with low low toxic.KS106 significantly increases ROS activity, lipid peroxidation and toxic aldehyde accumulation. KS106 induces apoptosis and cell cycle arrest at the G2/M phase[1].
STL5-T-0057 (compound 68) is an selective ALDH1 B1 inhibitor with an IC50 value of 30 nM. STL5-T-0057 inhibits cell growth of SW480 cells in adherent and spheroid conditions with IC50 values of 2.46 and 0.39 μM, respectively. STL5-T-0057 can be used for the research of cancer[1].
Prunetin, an O-methylated isoflavone, possesses anti-inflammatory activity. Prunetin is a potent human aldehyde dehydrogenases inhibitor[1][2].
Nitrefazole is a 4-nitroimidazole derivative with strong and long lasting inhibition of aldehyde dehydrogenase (ALDH), an enzyme involved in the metabolism of alcohol.
α-NETA is a potent and noncompetitive choline acetyltransferase (ChA) inhibitor with an IC50 of 9 μM. α-NETA is a potent ALDH1A1 (IC50=0.04 µM) and chemokine-like receptor-1 (CMKLR1) antagonist. α-NETA weakly inhibits cholinesterase (ChE; IC50=84 µM) and acetylcholinesterase (AChE; IC50=300 µM). α-NETA has anti-cancer activity[1][2].
ALDH1A3-IN-2 (Compound 15) is a potent inhibitor of ALDH1A3 with an IC50 of 1.29 μM. Aldehyde dehydrogenases (ALDHs) are overexpressed in various tumor types including prostate cancer. ALDH1A3-IN-2 has the potential for the research of cancer diseases[1].
CVT-10216 is a highly selective, reversible aldehyde dehydrogenase-2 (ALDH-2) inhibitor with an IC50 of 29 nM. CVT-10216 also has inhibitory effect of ALDH-1 with an IC50 of 1.3 μM. CVT-10216 can reduces excessive alcohol drinking in alcohol-preferring rats and exhibits anxiolytic effects[1].
Lacto-N-fucopentaose III (LNFP-III) is an immune modulator. Lacto-N-fucopentaose III reduces the severity of experimental autoimmune encephalomyelitis (EAE) and CNS inflammation[1].
YG1702 is a potent ALDH18A1-specific inhibitor. YG1702 attenuates the growth of MYCN-amplified NB and down-regulates MYCN. YG1702 physically interacts with ALDH18A1 with a high affinity and might potentially affect its enzymatic activity[1].
ALDH3A1 inhibitor EN40 is a potent and selective, covalent, in vivo-active inhibitor of ALDH3A1 with IC50 of 2 uM, demonstrates no activity against ALDH1A3 and ALDH6A1 at 30 uM; also does not show any observable competition against lysine-reactive probe labeling of A549 proteomes; specifically inhibits the lung cancer cell lines expressing ALDH3A1, but not in the cell lines that do not express ALDH3A1, inhibits ALDH3A1 activity and impairs lung cancer pathogenicity in vivo.