Date published: 2025-11-24

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claudin-15 Inhibitors

Claudin-15 is part of the claudin family of proteins, which are integral membrane proteins and crucial components of tight junctions in epithelial and endothelial cells. Tight junctions are essential for the selective paracellular transport of ions and solutes, maintaining cell polarity, and providing a barrier function in epithelial tissues. They play a vital role in segregating the components of the apical and basolateral membrane domains of epithelial cells. Claudin-15, like other members of the claudin family, possesses unique properties that determine its specific functions in tight junctions, such as ion selectivity and barrier function.

Inhibitors targeting claudin-15 would be specialized molecules designed to modulate the function, expression, or stability of claudin-15. Given its role in tight junctions, the inhibition of claudin-15 could impact the integrity and functionality of these junctions, potentially altering the selective permeability of epithelial or endothelial barriers. Potential inhibitors might encompass small molecules that bind directly to claudin-15, disrupting its ability to form or maintain tight junctions. This could be achieved by preventing the formation of claudin-claudin homotypic or heterotypic interactions, which are central to tight junction assembly. Another approach might involve molecules that interfere with post-translational modifications of claudin-15. Such modifications can influence its activity, cellular localization, or interactions with other tight junction proteins. Furthermore, advanced molecular strategies, such as RNA interference or antisense oligonucleotides, could be employed to regulate claudin-15 expression at the genetic level. Understanding the effects of claudin-15 inhibition can offer deeper insights into the intricacies of tight junction dynamics and the broader roles of the claudin family in epithelial and endothelial physiology.

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Items 1 to 10 of 14 total

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Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

Fumonisin B1

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

Fumonisin B1 has been shown to downregulate certain claudin proteins in intestinal cells, which might impact claudin-15 expression.

Genistein

446-72-0sc-3515
sc-3515A
sc-3515B
sc-3515C
sc-3515D
sc-3515E
sc-3515F
100 mg
500 mg
1 g
5 g
10 g
25 g
100 g
$26.00
$92.00
$120.00
$310.00
$500.00
$908.00
$1821.00
46
(1)

Genistein, a tyrosine kinase inhibitor, might inhibit the phosphorylation of proteins involved in tight junction assembly and maintenance. Given that claudin 15 is a tight junction protein, its proper function could be inhibited by the prevention of necessary phosphorylation events.

D-erythro-Sphingosine-1-phosphate

26993-30-6sc-201383
sc-201383D
sc-201383A
sc-201383B
sc-201383C
1 mg
2 mg
5 mg
10 mg
25 mg
$162.00
$316.00
$559.00
$889.00
$1693.00
7
(1)

S1P can modulate the expression of various claudins. It might regulate claudin-15 expression in specific cellular contexts.

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 involved in sphingolipid metabolism. By inhibiting nSMase, GW4869 could alter the lipid composition of cell membranes, which could, in turn, inhibit the proper incorporation and function of claudin 15 in tight junctions.

Manumycin A

52665-74-4sc-200857
sc-200857A
1 mg
5 mg
$215.00
$622.00
5
(1)

Manumycin A is an inhibitor of farnesyltransferase, an enzyme responsible for the post-translational modification of many proteins. By inhibiting farnesylation, Manumycin A could alter the membrane association of proteins and potentially inhibit claudin 15′s function within tight junctions.

Dexamethasone

50-02-2sc-29059
sc-29059B
sc-29059A
100 mg
1 g
5 g
$76.00
$82.00
$367.00
36
(1)

This glucocorticoid can modulate claudin expression in various tissues, which might influence claudin-15.

Lovastatin

75330-75-5sc-200850
sc-200850A
sc-200850B
5 mg
25 mg
100 mg
$28.00
$88.00
$332.00
12
(1)

Lovastatin inhibits HMG-CoA reductase, which could lead to reduced cholesterol biosynthesis. Claudin 15′s interaction with membrane cholesterol is important for tight junction function, so Lovastatin could inhibit the functionality of claudin 15 by altering the cholesterol content in cell membranes.

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 could lead to changes in the fatty acid composition of cell membranes. Since claudin 15 is integral to tight junctions which are dependent on membrane fluidity and composition, Cerulenin could inhibit claudin 15 function by altering the membrane environment.

Thymosin β4

77591-33-4sc-396076
sc-396076A
1 mg
100 mg
$134.00
$7140.00
(0)

TGF-β can modulate the expression of several claudin proteins in different cells, potentially affecting claudin-15 expression.

Filipin III

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

Filipin III binds to cholesterol, disrupting lipid rafts in cell membranes. Given that claudin 15 is associated with tight junctions, the disturbance of lipid raft integrity could inhibit the proper localization and function of claudin 15 in these structures.