Date published: 2026-4-24

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IL-18Rβ Inhibitors

Chemical inhibitors of IL-18Rβ can impact its function through various biochemical pathways that are integral to the protein's role in inflammation and immune response. Acetyl-Salicylic Acid, by inhibiting cyclooxygenase enzymes, reduces the production of prostaglandins, which are key mediators of inflammation. This action can lead to a decrease in the inflammatory signals that would otherwise enhance the activation of IL-18Rβ. Similarly, Zileuton and Montelukast target the leukotriene pathway; Zileuton inhibits leukotriene synthesis, while Montelukast blocks leukotriene receptors. Both actions serve to dampen the inflammatory milieu that is conducive to the activation of IL-18Rβ. Likewise, Ruxolitinib and Tofacitinib, as JAK inhibitors, prevent the phosphorylation and activation of STAT proteins, a process that is crucial for IL-18Rβ signaling via the JAK-STAT pathway. This disruption can lead to the indirect inhibition of the pro-inflammatory responses mediated by IL-18Rβ.

Further down the line of inflammatory signaling, Apigenin, Curcumin, and Sulforaphane all inhibit the activation of NF-kB, a transcription factor that regulates the expression of various inflammatory cytokines. By curbing NF-kB activity, these chemicals can decrease the transcription of inflammatory mediators that are involved in pathways where IL-18Rβ is active, thus inhibiting its function. Methotrexate contributes to this effect by decreasing the proliferation of T-cells through the inhibition of dihydrofolate reductase, leading to reduced purine synthesis. This action can decrease the T-cell responses that IL-18Rβ is known to influence. Lastly, Sunitinib and Dasatinib, as broad-spectrum tyrosine kinase inhibitors, can suppress the activity of kinases involved in cytokine signaling pathways. By inhibiting these kinases, they could disrupt the signaling cascades upon which IL-18Rβ depends for its activation, hence inhibiting its functional activity.

SEE ALSO...

Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

Aspirin

50-78-2sc-202471
sc-202471A
5 g
50 g
$20.00
$42.00
4
(1)

As an inhibitor of cyclooxygenase enzymes (COX-1 and COX-2), Acetyl-Salicylic Acid can reduce the production of prostaglandins. Prostaglandins are involved in inflammation, which is a process where IL-18Rβ has a role. By reducing inflammation, the activation of IL-18Rβ by its ligand IL-18 can be indirectly inhibited due to a decrease in the inflammatory response that IL-18 would otherwise exacerbate.

Zileuton

111406-87-2sc-204417
sc-204417A
sc-204417B
sc-204417C
10 mg
50 mg
1 g
75 g
$84.00
$307.00
$369.00
$1254.00
8
(1)

Zileuton, a 5-lipoxygenase inhibitor, reduces the synthesis of leukotrienes, which are eicosanoids that contribute to the inflammatory response. Since IL-18Rβ is implicated in promoting inflammation, inhibiting leukotriene synthesis can suppress the inflammatory signals that may activate IL-18Rβ.

Montelukast Sodium

151767-02-1sc-202231
sc-202231A
sc-202231B
10 mg
25 mg
250 mg
$51.00
$85.00
$161.00
5
(1)

Montelukast is a leukotriene receptor antagonist that blocks the action of leukotrienes on their receptors. By blocking leukotriene receptors, Montelukast can indirectly inhibit the inflammatory pathways in which IL-18Rβ participates, thus reducing its functional activity.

Ruxolitinib

941678-49-5sc-364729
sc-364729A
sc-364729A-CW
5 mg
25 mg
25 mg
$251.00
$500.00
$547.00
16
(1)

Ruxolitinib is a Janus kinase (JAK) inhibitor that can interrupt the JAK-STAT signaling pathway. Since IL-18Rβ utilizes JAK-STAT for signal transduction upon activation, Ruxolitinib may indirectly inhibit IL-18Rβ function by preventing downstream signaling events.

Methotrexate

59-05-2sc-3507
sc-3507A
100 mg
500 mg
$94.00
$213.00
33
(5)

Methotrexate acts as a competitive inhibitor of dihydrofolate reductase, leading to decreased production of tetrahydrofolate and, subsequently, reduced synthesis of purines. This reduction in purines can decrease the proliferation of T-cells, which are part of the immune response where IL-18Rβ is involved, thus indirectly inhibiting the functional response of IL-18Rβ.

Apigenin

520-36-5sc-3529
sc-3529A
sc-3529B
sc-3529C
sc-3529D
sc-3529E
sc-3529F
5 mg
100 mg
1 g
5 g
25 g
100 g
1 kg
$33.00
$214.00
$734.00
$1151.00
$2348.00
$3127.00
$5208.00
22
(1)

Apigenin is a flavone that has been shown to inhibit the activation of NF-kB, a transcription factor that regulates the expression of various inflammatory cytokines. The inhibition of NF-kB can dampen the inflammatory signaling pathways that involve IL-18Rβ, indirectly reducing its functional activity.

Curcumin

458-37-7sc-200509
sc-200509A
sc-200509B
sc-200509C
sc-200509D
sc-200509F
sc-200509E
1 g
5 g
25 g
100 g
250 g
1 kg
2.5 kg
$37.00
$69.00
$109.00
$218.00
$239.00
$879.00
$1968.00
47
(1)

Curcumin has multiple targets but is known to also inhibit NF-kB activation. By inhibiting NF-kB, Curcumin can suppress the transcription of inflammatory cytokines and chemokines that would otherwise operate in conjunction with IL-18Rβ, thereby indirectly inhibiting its activity.

D,L-Sulforaphane

4478-93-7sc-207495A
sc-207495B
sc-207495C
sc-207495
sc-207495E
sc-207495D
5 mg
10 mg
25 mg
1 g
10 g
250 mg
$153.00
$292.00
$489.00
$1325.00
$8465.00
$933.00
22
(1)

Sulforaphane is known to inhibit NF-kB pathway activation. By reducing NF-kB activity, Sulforaphane can decrease the inflammatory signaling that would typically enhance the function of IL-18Rβ, resulting in its indirect functional inhibition.

Sunitinib, Free Base

557795-19-4sc-396319
sc-396319A
500 mg
5 g
$153.00
$938.00
5
(0)

Sunitinib, a receptor tyrosine kinase inhibitor, can suppress the activity of kinases that are involved in the signaling pathways of various growth factors and cytokines. If these pathways are involved in the activation of IL-18Rβ, then Sunitinib could indirectly inhibit its function by disrupting these signaling cascades.

Dasatinib

302962-49-8sc-358114
sc-358114A
25 mg
1 g
$70.00
$145.00
51
(1)

Dasatinib is a broad-spectrum tyrosine kinase inhibitor that can interfere with the activity of kinases involved in cytokine signaling pathways. By inhibiting these kinases, Dasatinib could indirectly reduce the functional activity of IL-18Rβ by blocking the signaling processes it depends on for activation.