Date published: 2026-3-22

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PDE1B Activators

Phosphodiesterases (PDEs) are a diverse family of enzymes that play a crucial role in regulating intracellular levels of cyclic nucleotides, specifically cyclic adenosine monophosphate (cAMP) and cyclic guanosine monophosphate (cGMP). Among the various PDE isoforms, PDE1B is a subtype that has garnered attention due to its involvement in intracellular signaling cascades. PDE1B activators refer to a class of chemical compounds that specifically modulate the activity of the PDE1B enzyme.

PDE1B, belonging to the calcium/calmodulin-stimulated PDE family, is prominently expressed in tissues such as the brain, heart, and vascular smooth muscle. Activation of PDE1B leads to the hydrolysis of cAMP and cGMP, secondary messengers involved in numerous cellular processes. The physiological consequences of PDE1B activation are multifaceted, influencing cellular responses such as neurotransmission, cardiac contractility, and vascular tone. Consequently, PDE1B activators hold potential as pharmacological tools to selectively manipulate these signaling pathways for research purposes.

SEE ALSO...

Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

Icilin

36945-98-9sc-201557
sc-201557A
10 mg
50 mg
$91.00
$257.00
9
(1)

Icilin activates transient receptor potential (TRP) channels which can lead to Ca2+ influx, activating PDE1B which is a Ca2+/calmodulin-dependent phosphodiesterase, thus enhancing its functional activity in the signal transduction pathways.

IBMX

28822-58-4sc-201188
sc-201188B
sc-201188A
200 mg
500 mg
1 g
$260.00
$350.00
$500.00
34
(1)

IBMX is a non-selective PDE inhibitor that increases both cAMP and cGMP levels, indirectly enhancing PDE1B activity due to its role in cyclic nucleotide signaling.

Papaverine

58-74-2sc-279951
sc-279951A
sc-279951B
10 mg
50 mg
100 mg
$153.00
$265.00
$459.00
(0)

Papaverine is a non-selective PDE inhibitor that leads to increased levels of cAMP and cGMP, which can enhance the activity of PDE1B by increasing the substrate availability for its hydrolytic action.

Anagrelide

68475-42-3sc-491875
25 mg
$150.00
(0)

Anagrelide inhibits PDE3, leading to elevated cAMP levels, which can activate PDE1B as part of a regulatory mechanism to modulate the levels of cyclic nucleotides, thus enhancing PDE1B's role in signaling.

Aminophylline

317-34-0sc-252368
25 g
$37.00
(0)

Aminophylline inhibits various PDEs and increases intracellular cAMP and cGMP levels, which can indirectly lead to the activation of PDE1B, enhancing its functional role in signaling pathways.

Dipyridamole

58-32-2sc-200717
sc-200717A
1 g
5 g
$31.00
$102.00
1
(1)

Dipyridamole is a non-selective PDE inhibitor that increases cAMP and cGMP levels. By increasing the availability of these cyclic nucleotides, PDE1B activity is indirectly enhanced in cellular signaling processes.

Theophylline

58-55-9sc-202835
sc-202835A
sc-202835B
5 g
25 g
100 g
$20.00
$32.00
$85.00
6
(0)

Theophylline, a non-selective PDE inhibitor, raises intracellular levels of cAMP and cGMP, leading to increased PDE1B activity as it works to regulate these cyclic nucleotides within the cell.