Date published: 2025-12-19

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12-LO Inhibitors

12-LO inhibitors encompass a diverse range of chemicals, both naturally occurring and synthetic, which inhibit the activity of 12-lipoxygenase (12-LO), an enzyme involved in the metabolism of arachidonic acid into bioactive lipid mediators. These inhibitors function by different mechanisms, including directly blocking the active site of the enzyme or indirectly influencing the availability of its substrate. Direct inhibitors of 12-LO such as Baicalein, Nordihydroguaiaretic acid, Cinnamyl-3,4-dihydroxy-α-cyanocinnamate, Esculetin, Ebselen, Caffeic acid, Quercetin, Green tea polyphenols, and Curcumin bind to the enzyme's active site, blocking the conversion of arachidonic acid into 12-HETE. These compounds vary widely in their origins and structures, from flavonoids and polyphenols found in plants, to synthetic compounds.Beyond directinhibition, certain compounds can indirectly influence 12-LO activity by modulating the availability of its substrate, arachidonic acid. For instance, Zileuton, a leukotriene inhibitor, reduces the amount of leukotrienes, which can be further metabolized by 12-LO. Similarly, Licofelone, a dual COX/LOX inhibitor, decreases the production of other metabolites of arachidonic acid, indirectly impacting the activity of 12-LO. Lastly, omega-3 fatty acids, abundant in fish oil, compete with arachidonic acid for metabolism by LOX enzymes, effectively reducing the availability of arachidonic acid for 12-LO. In conclusion, 12-LO inhibitors illustrate the interplay of direct and indirect strategies to modulate enzyme activity, demonstrating the abilities of a range of chemicals, both natural and synthetic, to influence the function of 12-LO and the broader arachidonic acid metabolic pathway. As our understanding of these complex biochemical pathways deepens, the specificity, efficacy, and scope of these inhibitor compounds can be better appreciated and utilized.

Items 1 to 10 of 20 total

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Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

Esculetin

305-01-1sc-200486
sc-200486A
1 g
5 g
$43.00
$208.00
7
(1)

Esculetin acts as a potent modulator of 12-lipoxygenase (12-LO), showcasing unique molecular interactions that enhance its enzymatic activity. Its hydroxyl groups facilitate hydrogen bonding, promoting substrate stabilization and influencing reaction kinetics. The compound's planar structure allows for effective π-π stacking with aromatic residues in the enzyme, potentially altering conformational dynamics and enhancing catalytic efficiency in lipid metabolism pathways.

Gossypol

303-45-7sc-200501
sc-200501A
25 mg
100 mg
$114.00
$225.00
12
(1)

Gossypol exhibits intriguing behavior as a 12-lipoxygenase (12-LO) modulator, characterized by its ability to form stable complexes with the enzyme through hydrophobic interactions. Its unique polyphenolic structure allows for multiple binding sites, which can influence the enzyme's conformational state. This interaction may alter the enzyme's catalytic pathway, affecting the rate of lipid peroxidation and modulating downstream signaling pathways in cellular processes.

Ferulic acid

1135-24-6sc-204753
sc-204753A
sc-204753B
sc-204753C
sc-204753D
5 g
25 g
100 g
500 g
1 kg
$42.00
$62.00
$153.00
$552.00
$988.00
10
(3)

Ferulic acid acts as a 12-lipoxygenase (12-LO) modulator, showcasing its capacity to engage in specific hydrogen bonding and π-π stacking interactions with the enzyme. Its distinctive phenolic structure facilitates the formation of transient enzyme-substrate complexes, potentially enhancing reaction kinetics. This interaction may lead to altered substrate specificity and modulation of lipid metabolism, influencing various cellular signaling cascades.

ETYA

1191-85-1sc-200764
sc-200764A
20 mg
100 mg
$75.00
$313.00
3
(1)

ETYA serves as a potent 12-lipoxygenase (12-LO) inhibitor, characterized by its ability to form stable complexes with the enzyme through hydrophobic interactions and steric hindrance. Its unique structure allows for selective binding, which can significantly alter the enzyme's catalytic efficiency. This modulation of enzyme activity may impact lipid peroxidation pathways, leading to changes in cellular redox states and influencing various metabolic processes.

NDGA (Nordihydroguaiaretic acid)

500-38-9sc-200487
sc-200487A
sc-200487B
1 g
5 g
25 g
$107.00
$376.00
$2147.00
3
(1)

NDGA is a lignan found in the creosote bush and inhibits 12-LO by binding to its active site, thereby preventing the conversion of arachidonic acid to 12-HETE.

Caffeic Acid

331-39-5sc-200499
sc-200499A
1 g
5 g
$31.00
$61.00
1
(2)

Caffeic acid exhibits notable interactions with 12-lipoxygenase (12-LO) through its phenolic hydroxyl groups, which facilitate hydrogen bonding and enhance binding affinity. This compound can alter the enzyme's conformation, affecting its substrate specificity and reaction kinetics. Additionally, caffeic acid's antioxidant properties may influence lipid metabolism by modulating oxidative stress responses, thereby impacting cellular signaling pathways and metabolic regulation.

Baicalein

491-67-8sc-200494
sc-200494A
sc-200494B
sc-200494C
10 mg
100 mg
500 mg
1 g
$31.00
$41.00
$159.00
$286.00
12
(1)

Baicalein demonstrates a unique ability to modulate 12-lipoxygenase activity through its flavonoid structure, which allows for specific π-π stacking interactions with the enzyme's active site. This interaction can lead to conformational changes that influence substrate accessibility and catalytic efficiency. Furthermore, Baicalein's capacity to chelate metal ions may affect the enzyme's stability and reactivity, potentially altering lipid peroxidation pathways and cellular signaling dynamics.

Hinokitiol

499-44-5sc-200812
sc-200812A
sc-200812B
sc-200812C
sc-200812D
sc-200812E
50 mg
250 mg
1 g
10 g
50 g
100 g
$63.00
$193.00
$357.00
$714.00
$1533.00
$2244.00
(1)

Hinokitiol exhibits intriguing interactions with 12-lipoxygenase, primarily through its unique hydrophobic and aromatic characteristics. Its molecular structure facilitates strong van der Waals forces and hydrogen bonding with the enzyme, potentially enhancing substrate binding affinity. This interaction may influence the enzyme's conformational dynamics, affecting its catalytic turnover rate. Additionally, Hinokitiol's antioxidant properties could modulate oxidative stress responses, impacting lipid metabolism pathways.

ETI

13488-22-7sc-200762
sc-200762A
1 mg
10 mg
$85.00
$611.00
(0)

ETI acts as a potent 12-lipoxygenase inhibitor, characterized by its ability to form stable complexes with the enzyme's active site. Its structural features promote specific electrostatic interactions and hydrophobic contacts, which can alter the enzyme's conformational stability. This modulation may lead to a significant decrease in reaction kinetics, affecting the overall lipid peroxidation process. Furthermore, ETI's unique reactivity as an acid halide allows for selective acylation, influencing downstream metabolic pathways.

8,11,14-Eicosatriynoic Acid

34262-64-1sc-221152
sc-221152A
1 mg
5 mg
$132.00
$595.00
(0)

8,11,14-Eicosatriynoic Acid exhibits unique properties as a 12-lipoxygenase modulator, engaging in specific molecular interactions that enhance its inhibitory effects. Its elongated carbon chain facilitates unique steric hindrance, impacting enzyme accessibility and altering catalytic efficiency. The compound's reactivity profile allows for targeted interactions with lipid substrates, potentially redirecting metabolic flux and influencing cellular signaling pathways. This specificity underscores its role in lipid metabolism dynamics.