Date published: 2026-2-8

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HMW-Guanylin Inhibitors

High Molecular Weight Guanylin (HMW-Guanylin) Inhibitors are a class of chemical compounds designed to modulate the activity of HMW-Guanylin, a naturally occurring peptide hormone primarily found in the gastrointestinal tract. HMW-Guanylin plays a crucial role in regulating fluid and electrolyte balance in the gut, thereby influencing processes such as intestinal fluid secretion and motility. Inhibitors within this class exert their effects by interfering with the molecular interactions and signaling pathways associated with HMW-Guanylin, ultimately leading to alterations in intestinal physiology.

The mechanism of action of HMW-Guanylin Inhibitors typically revolves around targeting specific molecular components involved in HMW-Guanylin signaling. These inhibitors may function by binding to HMW-Guanylin itself or to its associated receptors, such as guanylate cyclase C (GC-C), to disrupt the receptor-ligand interactions. By doing so, they can either inhibit or enhance the activation of downstream intracellular pathways, including the cyclic GMP (cGMP) signaling cascade. Additionally, some inhibitors may modulate other factors implicated in gut function, like neurotransmitter receptors or ion channels, indirectly impacting HMW-Guanylin's influence on fluid secretion and gut motility. The diversity of mechanisms within this class allows for a nuanced approach to modulating HMW-Guanylin's effects in the gastrointestinal system, making it a valuable area of research in the field of gastrointestinal physiology and pharmacology. Researchers continue to explore the applications of HMW-Guanylin Inhibitors in understanding gut function and developing novel interventions for gastrointestinal conditions.

SEE ALSO...

Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

13C6-Lys octreotide tri(trifluoroacetate)

83150-76-9 (unlabeled free base)sc-477942
500 µg
$396.00
(0)

Synthetic somatostatin analog that inhibits the release of various gastrointestinal hormones, indirectly affecting guanylin signaling.

Atropine

51-55-8sc-252392
5 g
$204.00
2
(1)

Antagonist of muscarinic acetylcholine receptors, which are involved in stimulating intestinal secretion mediated by guanylin.

Scopolamine

51-34-3sc-473216
sc-473216A
sc-473216B
100 mg
500 mg
1 g
$172.00
$506.00
$786.00
2
(0)

Blocks muscarinic acetylcholine receptors, reducing guanylin-induced fluid secretion by inhibiting parasympathetic stimulation.

Nifedipine

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

Calcium channel blocker that may indirectly modulate guanylin activity by affecting smooth muscle contractility in the gastrointestinal tract.

PGE1 (Prostaglandin E1)

745-65-3sc-201223
sc-201223A
1 mg
10 mg
$31.00
$145.00
16
(4)

Activates adenylate cyclase and increases intracellular cAMP levels, potentially counteracting guanylin's cGMP-mediated effects.

Verapamil

52-53-9sc-507373
1 g
$374.00
(0)

Calcium channel blocker that may impact intestinal smooth muscle contractility and fluid secretion, indirectly affecting guanylin function.