Date published: 2026-7-24

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claudin-1 Inhibitors

Common claudin-1 Inhibitors include, but are not limited to Simvastatin CAS 79902-63-9, (-)-Epigallocatechin Gallate CAS 989-51-5, Hydrogen Peroxide CAS 7722-84-1, Lipopolysaccharide, E. coli O55:B5 CAS 93572-42-0 and Caffeine CAS 58-08-2.

Claudin-1 is a member of the claudin family, a group of proteins integral to the formation and function of tight junctions in epithelial and endothelial cells. Tight junctions are specialized multi-protein complexes that provide a selective barrier between the internal and external environments of tissues. They regulate the paracellular transport of ions and small molecules, ensuring the maintenance of distinct biochemical environments on either side of the cell barrier. Claudin-1, like other claudins, has a unique profile of ion selectivity and barrier properties, which contribute to the specific functions of the tissues where they are expressed. Apart from its role in barrier function, claudin-1 has also been implicated in various cellular processes including cell signaling, differentiation, and proliferation.

Claudin-1 inhibitors would comprise molecules or strategies designed to curtail the expression, activity, or stability of claudin-1. The inhibition of claudin-1 could influence the integrity and permeability of tight junctions, altering the barrier properties of the tissues where it is expressed. Such inhibitors might be small molecules that hinder claudin-1's ability to form functional tight junction strands or that disrupt its interactions with other tight junction proteins. Alternatively, molecular strategies like RNA interference or antisense oligonucleotides could be employed to reduce claudin-1 expression at the transcriptional or translational level. Investigating the effects of claudin-1 inhibition would offer a deeper understanding of its specific roles in different tissues, and elucidate the broader implications of modulating tight junction function and integrity in various physiological and cellular contexts.

SEE ALSO...

Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

Simvastatin

79902-63-9sc-200829
sc-200829A
sc-200829B
sc-200829C
50 mg
250 mg
1 g
5 g
$31.00
$89.00
$135.00
$443.00
13
(1)

Some studies suggest that statins, like simvastatin, can downregulate claudin-1 expression in vascular endothelial cells.

(−)-Epigallocatechin Gallate

989-51-5sc-200802
sc-200802A
sc-200802B
sc-200802C
sc-200802D
sc-200802E
10 mg
50 mg
100 mg
500 mg
1 g
10 g
$43.00
$73.00
$126.00
$243.00
$530.00
$1259.00
11
(1)

EGCG has been shown in certain studies to downregulate claudin-1 expression in specific cancer cell lines.

Hydrogen Peroxide

7722-84-1sc-203336
sc-203336A
sc-203336B
100 ml
500 ml
3.8 L
$31.00
$61.00
$95.00
28
(1)

Oxidative stress induced by H2O2 can lead to decreased claudin-1 expression in some cell types.

Lipopolysaccharide, E. coli O55:B5

93572-42-0sc-221855
sc-221855A
sc-221855B
sc-221855C
10 mg
25 mg
100 mg
500 mg
$98.00
$171.00
$425.00
$1560.00
12
(2)

LPS, a component of bacterial cell walls, can decrease claudin-1 expression in some epithelial cells.

Caffeine

58-08-2sc-202514
sc-202514A
sc-202514B
sc-202514C
sc-202514D
50 g
100 g
250 g
1 kg
5 kg
$33.00
$67.00
$97.00
$192.00
$775.00
13
(1)

In specific cellular contexts, caffeine can downregulate claudin-1, affecting barrier function.