Date published: 2025-10-25

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ORP-11 Inhibitors

Chemical inhibitors of ORP-11 target various aspects of lipid metabolism and trafficking to exert their inhibitory effects. GW4869, as a neutral sphingomyelinase inhibitor, reduces ceramide levels, which may be crucial for the proper functioning of ORP-11, particularly in cholesterol transport and the maintenance of membrane microenvironments. Myriocin, by inhibiting serine palmitoyltransferase, disrupts sphingolipid synthesis and thereby potentially alters the lipid rafts where ORP-11 is localized and functions, impairing its lipid transport capabilities. Similarly, D609 impedes phosphatidylcholine-specific phospholipase C, affecting diacylglycerol levels that could interact with ORP-11, disrupting lipid signaling pathways that are essential for ORP-11's activity. Fumonisin B1, by inhibiting ceramide synthase, lowers complex sphingolipid levels that could participate in functional interactions with ORP-11, thereby inhibiting the protein's role in lipid trafficking. U18666A, as a cholesterol transport inhibitor, disrupts cholesterol homeostasis, an environment in which ORP-11 operates, leading to an inhibition of its function by perturbing the distribution of cholesterol. Perhexiline hampers carnitine palmitoyltransferase-1, a key enzyme in fatty acid metabolism, and this disruption can impair the processes where ORP-11 is involved, leading to a functional inhibition. Guggulsterone antagonizes the farnesoid X receptor, a regulator of bile acid and cholesterol homeostasis, and this antagonism can alter cholesterol trafficking pathways that involve ORP-11. Filipin binds to sterols and disrupts cholesterol-rich domains within cellular membranes, potentially inhibiting the interaction of ORP-11 with these domains and its activity. Cerulenin, a fatty acid synthase inhibitor, disrupts lipid composition, potentially influencing ORP-11's transport and exchange functions. Finally, PDMP inhibits glucosylceramide synthase, affecting glycosphingolipid synthesis, which can lead to an inhibition of ORP-11's lipid transfer activities due to altered sphingolipid composition.
Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

GW4869

6823-69-4sc-218578
sc-218578A
5 mg
25 mg
$199.00
$599.00
24
(3)

GW4869 is an inhibitor of neutral sphingomyelinase (nSMase), an enzyme that catalyzes the hydrolysis of sphingomyelin to ceramide. Since ORP-11 is involved in the transport of cholesterol and potentially interacts with ceramide-rich domains, inhibiting nSMase with GW4869 decreases ceramide levels, which could disrupt membrane microenvironments essential for ORP-11 function, leading to its functional inhibition.

Myriocin (ISP-1)

35891-70-4sc-201397
10 mg
$106.00
8
(2)

Myriocin is a potent inhibitor of serine palmitoyltransferase, the initial step in sphingolipid synthesis. By reducing sphingolipid synthesis, myriocin can alter lipid rafts where ORP-11 may localize and function, thereby inhibiting ORP-11's role in intracellular lipid transport.

D609

83373-60-8sc-201403
sc-201403A
5 mg
25 mg
$185.00
$564.00
7
(1)

D609 is an inhibitor of phosphatidylcholine-specific phospholipase C, which is involved in the generation of diacylglycerol, a molecule that can interact with ORP-11. Inhibition with D609 can disrupt lipid signaling pathways and membrane dynamics, potentially inhibiting the function of ORP-11 in lipid exchange and transport.

Fumonisin B1

116355-83-0sc-201395
sc-201395A
1 mg
5 mg
$117.00
$469.00
18
(1)

Fumonisin B1 is an inhibitor of ceramide synthase, leading to a decrease in complex sphingolipid levels. Since ORP-11 is implicated in lipid trafficking and may interact with sphingolipids, the reduction of sphingolipid levels by Fumonisin B1 could inhibit ORP-11's functional interactions with these lipids.

U 18666A

3039-71-2sc-203306
sc-203306A
10 mg
50 mg
$140.00
$500.00
2
(1)

U18666A is a cholesterol transport inhibitor that can induce intracellular cholesterol accumulation and disrupt cholesterol homeostasis. As ORP-11 is involved in cholesterol transport, the action of U18666A can inhibit the proper localization and function of ORP-11 by perturbing cholesterol distribution.

rac Perhexiline Maleate

6724-53-4sc-460183
10 mg
$184.00
(0)

Perhexiline inhibits carnitine palmitoyltransferase-1 (CPT1), which is crucial for mitochondrial fatty acid uptake. By disrupting fatty acid metabolism, perhexiline could impair the lipid-related signaling and transport processes in which ORP-11 participates, leading to its functional inhibition.

Guggulsterone

95975-55-6sc-203990
sc-203990A
10 mg
50 mg
$145.00
$615.00
1
(0)

Guggulsterone is known to antagonize the farnesoid X receptor (FXR), which regulates bile acid and cholesterol homeostasis. By antagonizing FXR, guggulsterone can alter cholesterol trafficking pathways, potentially inhibiting ORP-11's function in these pathways.

Filipin III

480-49-9sc-205323
sc-205323A
500 µg
1 mg
$116.00
$145.00
26
(2)

Filipin is a sterol-binding agent that disrupts cholesterol-rich domains within cellular membranes. ORP-11, being involved in cholesterol transport, may require interaction with these domains, and their disruption by filipin could inhibit ORP-11's functional activity.

Cerulenin (synthetic)

17397-89-6sc-200827
sc-200827A
sc-200827B
5 mg
10 mg
50 mg
$158.00
$306.00
$1186.00
9
(1)

Cerulenin is an inhibitor of fatty acid synthase, which may disrupt lipid composition and metabolism. Changes in cellular lipid profiles can influence the transport and exchange functions of ORP-11, leading to its functional inhibition.