Date published: 2026-5-30

1-800-457-3801

SCBT Portrait Logo
Seach Input

Malcavernin Inhibitors

Chemical inhibitors of Malcavernin can achieve their inhibitory effects through multiple pathways, primarily by targeting the RhoA/ROCK pathway, which is integral to Malcavernin's role in maintaining vascular integrity and stability. Fasudil and its active metabolite Hydroxyfasudil, along with Y-27632, directly inhibit ROCK, which is a downstream effector in the RhoA pathway. The inhibition of ROCK leads to decreased stress fiber formation and cellular contractility, both of which are important for the stabilization of endothelial junctions where Malcavernin is known to be active. Similarly, Amiloride indirectly influences the RhoA/ROCK pathway by modulating intracellular sodium levels, which affect cellular contractility and adherence junction stability, ultimately impacting Malcavernin function.

In addition to these direct ROCK inhibitors, CCG-1423 targets the RhoA/serum response factor (SRF) signaling pathway. This pathway is connected to Malcavernin's role in regulating cell shape and motility, and its inhibition would lead to a reduction in Malcavernin's activity in these processes. A group of chemicals, namely Simvastatin, Lovastatin, Atorvastatin, and Pitavastatin, inhibit the mevalonate pathway. This is critical for the prenylation and subsequent activation of small GTPases like RhoA. By reducing the activation of RhoA, these statins can indirectly inhibit Malcavernin's role in cytoskeletal organization and endothelial barrier function. Manumycin A and GGTI-298 further inhibit the prenylation and activation of RhoA by targeting farnesyltransferase and geranylgeranyltransferase I, respectively, leading to inhibition of Malcavernin-associated cellular functions.

SEE ALSO...

Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

Fasudil, Monohydrochloride Salt

105628-07-7sc-203418
sc-203418A
sc-203418B
sc-203418C
sc-203418D
sc-203418E
sc-203418F
10 mg
50 mg
250 mg
1 g
2 g
5 g
10 g
$18.00
$33.00
$87.00
$168.00
$253.00
$496.00
$910.00
5
(1)

Fasudil is a Rho kinase inhibitor which blocks the RhoA/ROCK pathway. Malcavernin is known to interact with the RhoA pathway, and inhibition of this pathway by Fasudil can lead to decreased stress fiber formation and reduced stabilization of endothelial junctions, thereby inhibiting the functional role of Malcavernin in maintaining vascular integrity.

Y-27632, free base

146986-50-7sc-3536
sc-3536A
5 mg
50 mg
$186.00
$707.00
88
(1)

Y-27632 is another inhibitor of the Rho-associated protein kinase (ROCK). By inhibiting ROCK, this chemical reduces actomyosin contractility, which can lead to the inhibition of Malcavernin's function related to cytoskeletal organization and cellular contraction, processes Malcavernin is involved in through its interaction with the RhoA pathway.

Amiloride

2609-46-3sc-337527
1 g
$296.00
7
(1)

Amiloride indirectly inhibits the RhoA/ROCK pathway by modulating intracellular sodium levels, which can affect cellular contractility and adherence junction stability. This can inhibit Malcavernin's role in cell-cell junction regulation and cytoskeletal organization.

CCG-1423

285986-88-1sc-205241
sc-205241A
1 mg
5 mg
$30.00
$90.00
8
(1)

CCG-1423 inhibits the RhoA/serum response factor (SRF) signaling pathway. Since Malcavernin is part of the CCM signaling complex that interacts with RhoA, inhibition of this pathway can lead to a reduction in Malcavernin's activity related to cellular shape and motility regulation.

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)

Simvastatin inhibits the mevalonate pathway, which is critical for the prenylation and activation of small GTPases like RhoA. By inhibiting RhoA activation, Simvastatin can indirectly inhibit Malcavernin's function in the stabilization of endothelial junctions.

Lovastatin

75330-75-5sc-200850
sc-200850A
sc-200850B
5 mg
25 mg
100 mg
$29.00
$90.00
$339.00
12
(1)

Lovastatin, similar to Simvastatin, inhibits the mevalonate pathway, thereby reducing the prenylation and activation of RhoA. This leads to inhibition of Malcavernin-mediated activities in cytoskeletal dynamics and endothelial barrier function.

Atorvastatin

134523-00-5sc-337542A
sc-337542
50 mg
100 mg
$257.00
$505.00
9
(1)

Atorvastatin also inhibits the mevalonate pathway and has a similar mode of action as Simvastatin and Lovastatin. It indirectly inhibits Malcavernin by reducing RhoA activation, which Malcavernin interacts with for cellular junction stability and vascular integrity.

Manumycin A

52665-74-4sc-200857
sc-200857A
1 mg
5 mg
$219.00
$634.00
5
(1)

Manumycin A is a farnesyltransferase inhibitor that can prevent the activation of RhoA by inhibiting its farnesylation. By doing so, this chemical can inhibit the interaction of Malcavernin with the RhoA pathway, affecting cellular shape and vascular stability.

GGTI 298

1217457-86-7sc-361184
sc-361184A
1 mg
5 mg
$193.00
$838.00
2
(1)

GGTI-298 inhibits geranylgeranyltransferase I, necessary for the geranylgeranylation of RhoA, which is essential for its activation. Inhibition of RhoA activation can disrupt Malcavernin-mediated regulation of endothelial barrier function.