Date published: 2026-4-24

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Stat4 Inhibitors

Stat4 inhibitors belong to a distinct chemical class characterized for their ability to modulate the activity of Signal Transducer and Activator of Transcription 4 (Stat4), a transcription factor that plays a crucial role in cellular signaling and gene expression. These inhibitors function by interfering with the interactions involving Stat4, which is primarily associated with immune responses and the regulation of various cytokines. Stat4 is involved in mediating cellular responses to interleukin signals, which are important for immune cell differentiation and function. Stat4 inhibitors are intricately designed to target specific binding sites or molecular pathways associated with Stat4, thereby influencing its cellular functions and downstream effects. The development of Stat4 inhibitors entails a comprehensive understanding of the structural characteristics of Stat4 and its interactions with other proteins and DNA. Researchers in this field strive to engineer molecules with high selectivity and affinity for Stat4, enabling precise modulation of its activities. These inhibitors often employ innovative design strategies that disrupt key molecular interactions necessary for Stat4's functional role in immune responses and cytokine signaling. By gaining insights into the intricate mechanisms through which Stat4 participates in immune regulation and cellular responses, researchers aim to unravel its significance in fundamental biological processes. The ongoing advancements in molecular pharmacology and chemical synthesis drive the refinement of Stat4 inhibitors, offering applications across diverse scientific contexts where manipulation of Stat4-mediated processes is of interest.
Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

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 non-competitively inhibits STAT4 SH2 domain binding to the phosphorylated tyrosine residue, thus preventing STAT4 dimerization and downstream signaling in immune responses.

Stat3 Inhibitor VI, S3I-201

501919-59-1sc-204304
10 mg
$151.00
104
(1)

S31-201 interferes with STAT4 phosphorylation, blocking its nuclear translocation and subsequent transcriptional activity, which is crucial for Th1 cell differentiation.

Cryptotanshinone

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

Cryptotanshinone inhibits STAT4 activation by suppressing JAK2 phosphorylation and downregulating IFN-γ-mediated STAT4 phosphorylation, interfering with Th1 cell development.

Pimozide

2062-78-4sc-203662
100 mg
$104.00
3
(1)

Pimozide inhibits STAT4 phosphorylation and nuclear translocation by targeting JAK2 and preventing the JAK2/STAT4 signaling axis, thereby dampening autoimmune responses.

2-Hydroxycinnamaldehyde

3541-42-2sc-288153
1 g
$779.00
5
(0)

2'-Hydroxycinnamaldehyde inhibits STAT4 phosphorylation and dimerization by suppressing JAK2 activation, which impedes the downstream Th1 response mediated by STAT4.

Tyrphostin B42

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

Tyrphostin B42 is a JAK2 inhibitor that indirectly inhibits STAT4 activation by blocking JAK2 phosphorylation, leading to decreased STAT4-mediated immune responses and inflammation.

Galiellalactone

133613-71-5sc-202165
1 mg
$418.00
9
(1)

Galiellalactone suppresses STAT4 phosphorylation and transcriptional activity by inhibiting JAK3 and JAK2, attenuating the Th1 immune response and associated inflammatory processes.