Date published: 2026-6-12

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ET-3 Activators

The chemical class termed ET-3 Activators encompasses a diverse range of compounds that, while not directly interacting with ET-3 or its receptors, exert an influence on the cellular and molecular pathways that regulate ET-3 expression or activity. This class includes various agents such as adenylyl cyclase activators, protein kinase C activators, nitric oxide donors, beta-adrenergic agonists, calcium channel blockers, angiotensin receptor blockers, phosphodiesterase inhibitors, alpha-2 adrenergic receptor antagonists, nicotinic acetylcholine receptor agonists, and TRPV1 receptor activators.

Each of these compounds, though diverse in their primary mechanisms of action, shares the common feature of being able to modulate cellular signaling pathways that indirectly impact the expression, release, or activity of ET-3. For instance, compounds that increase intracellular cAMP levels, such as forskolin and isoproterenol, can enhance ET-3 expression by activating PKA, which may then influence transcription factors that regulate the ET-3 gene. Similarly, calcium channel blockers like amlodipine and nifedipine, by altering intracellular calcium dynamics, can modulate the function of endothelin receptors, thereby affecting ET-3 activity. Nitric oxide donors, represented by sodium nitroprusside, demonstrate the interplay between vasodilatory pathways and endothelin system regulation. Angiotensin receptor blockers like valsartan and losartan highlight the intricate connections between the renin-angiotensin system and ET-3 regulation.

SEE ALSO...

Items 1 to 10 of 11 total

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Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

PMA

16561-29-8sc-3576
sc-3576A
sc-3576B
sc-3576C
sc-3576D
1 mg
5 mg
10 mg
25 mg
100 mg
$41.00
$132.00
$214.00
$500.00
$948.00
119
(6)

PMA is a diacylglycerol analog known to activate protein kinase C (PKC). PKC activation can lead to the phosphorylation of various proteins that are part of the signaling pathways influencing endothelin expression. For instance, PKC-mediated phosphorylation may enhance transcription factors regulating ET-3 gene expression.

Forskolin

66575-29-9sc-3562
sc-3562A
sc-3562B
sc-3562C
sc-3562D
5 mg
50 mg
1 g
2 g
5 g
$78.00
$153.00
$740.00
$1413.00
$2091.00
73
(3)

Forskolin activates adenylyl cyclase, increasing intracellular cAMP levels. Elevated cAMP can stimulate protein kinase A (PKA), which in turn may influence transcription factors involved in ET-3 expression or modulate endothelin receptor sensitivity.

Sodium nitroprusside dihydrate

13755-38-9sc-203395
sc-203395A
sc-203395B
1 g
5 g
100 g
$43.00
$85.00
$158.00
7
(1)

As a nitric oxide donor, sodium nitroprusside can induce vasodilation. Nitric oxide can modulate endothelin receptor activity and expression, thereby indirectly affecting ET-3 signaling pathways.

Isoproterenol Hydrochloride

51-30-9sc-202188
sc-202188A
100 mg
500 mg
$28.00
$38.00
5
(0)

Isoproterenol is a β-adrenergic agonist which, through G protein-coupled receptor activation, can increase intracellular cAMP. This elevation can modulate ET-3 expression through PKA-dependent mechanisms.

Amlodipine

88150-42-9sc-200195
sc-200195A
100 mg
1 g
$74.00
$166.00
2
(1)

Amlodipine, a calcium channel blocker, influences calcium influx. Altered intracellular calcium levels can affect endothelin receptor signaling and potentially modify ET-3 expression.

Valsartan

137862-53-4sc-220362
sc-220362A
sc-220362B
10 mg
100 mg
1 g
$40.00
$92.00
$122.00
4
(1)

Valsartan, an angiotensin II receptor blocker, may indirectly influence ET-3 levels by modulating the renin-angiotensin system, known to interact with the endothelin system.

Losartan

114798-26-4sc-353662
100 mg
$130.00
18
(1)

Similar to Valsartan, Losartan as an angiotensin receptor blocker could affect ET-3 expression through its influence on the renin-angiotensin-aldosterone system.

Nifedipine

21829-25-4sc-3589
sc-3589A
1 g
5 g
$59.00
$173.00
15
(1)

As a calcium channel blocker, Nifedipine's alteration of calcium signaling can indirectly influence ET-3 expression or activity by modulating endothelin receptor functions.

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)

Caffeine inhibits phosphodiesterases, leading to increased cAMP levels. This rise in cAMP may impact ET-3 expression via PKA activation and subsequent modulation of transcription factors.

Yohimbine hydrochloride

65-19-0sc-204412
sc-204412A
sc-204412B
1 g
5 g
25 g
$51.00
$171.00
$530.00
2
(1)

Yohimbine, an alpha-2 adrenergic receptor antagonist, can modulate sympathetic nervous system activity. This modulation may indirectly influence ET-3 expression or activity within the vascular system.