Date published: 2026-5-14

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IL-6Rα Inhibitors

Interleukin-6 receptor alpha (IL-6Rα) is a membrane-bound protein that plays a central role in mediating the cellular effects of interleukin-6 (IL-6), a pleiotropic cytokine involved in various physiological processes including inflammation, immune response, and hematopoiesis. IL-6 binds to IL-6Rα, forming a complex that subsequently associates with another membrane protein called gp130. This assembly initiates a cascade of intracellular signaling pathways, predominantly the JAK/STAT pathway, which culminates in the modulation of gene expression patterns in the cell. Given the wide range of biological processes influenced by IL-6, the precise regulation of IL-6Rα-mediated signaling is paramount. Dysregulation of this system can contribute to various pathophysiological conditions, underscoring the importance of understanding and modulating IL-6Rα activity.

IL-6Rα inhibitors are a class of chemical compounds designed to specifically target and modulate the activity of the IL-6Rα. These inhibitors function by preventing the binding of IL-6 to its receptor, thereby disrupting the subsequent signaling cascades. Depending on their design and mechanism, IL-6Rα inhibitors can bind directly to the receptor, blocking the interaction site for IL-6, or they might interfere with the conformational changes required for effective signaling. Others might inhibit the downstream signaling pathways activated upon IL-6/IL-6Rα/gp130 complex formation.

SEE ALSO...

Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

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 inhibits JAK1/JAK2 kinases, downstream of IL-6Rα, thereby suppressing signaling through the receptor.

IKK-2 Inhibitor IV

507475-17-4sc-203083
500 µg
$133.00
12
(1)

IKK-2 Inhibitor IV inhibits IKK-2 which is involved in the downstream signaling of IL-6Rα.

Stat3 inhibitor V, stattic

19983-44-9sc-202818
sc-202818A
sc-202818B
sc-202818C
sc-202818D
sc-202818E
sc-202818F
25 mg
100 mg
250 mg
500 mg
1 g
2.5 g
5 g
$130.00
$196.00
$274.00
$512.00
$731.00
$1408.00
$2091.00
114
(3)

Stattic selectively inhibits the activation of STAT3, a downstream molecule in the IL-6Rα pathway.

Stat3 Inhibitor III, WP1066

857064-38-1sc-203282
10 mg
$132.00
72
(1)

WP1066 is an inhibitor of STAT3, blocking its phosphorylation and nuclear translocation in the IL-6Rα signaling cascade.

Tyrphostin B42

133550-30-8sc-3556
5 mg
$26.00
4
(1)

Tyrphostin B42 is a JAK2 inhibitor, targeting the downstream signaling pathway of IL-6Rα.

WHI-P 154

211555-04-3sc-204395
sc-204395A
10 mg
50 mg
$153.00
$643.00
3
(1)

WHI-P154 is a JAK3 inhibitor that can indirectly modulate the IL-6Rα signaling pathway.

Nifuroxazide

965-52-6sc-204128
sc-204128A
500 mg
5 g
$203.00
$520.00
5
(1)

Nifuroxazide is an inhibitor of STAT3, impacting the downstream signaling events of IL-6Rα.

Cryptotanshinone

35825-57-1sc-280649
10 mg
$119.00
1
(1)

Cryptotanshinone inhibits STAT3 activation, thereby down-regulating signaling through IL-6Rα.