stat4

(R)-Lisofylline ((R)-Lisophylline) is an inhibitor of lysophosphatidic acid acyltransferase (IC50 = 0.6 µM) that interrupts IL-12 signaling-mediated STAT4 activation, making it useful for studies on the treatment of type 1 diabetes and autoimmune disorders.

STAT4-IN-1 is a STAT4 inhibitor with a Ki of 0.35 μM. It holds promise for research into autoimmune diseases, including inflammatory bowel disease, multiple sclerosis, rheumatoid arthritis, and diabetes.

Ethyl Caffeate (ETHYL 3,4-DIHYDROXYCINNAMATE) suppressed the differentiation of naive CD4+ T cells into Th1 in vitro. Furthermore, Ethyl Caffeate intensely blocked the transcriptional expression in interferon-γ-related signaling, including IFN-γ, T-bet, STAT1, and STAT4.

SD-436 is a selective and highly efficient STAT3 PROTAC degrader (DC50 = 0.5 μM), with an IC50 of 19 nM for STAT3, significantly higher than for STAT1/4/5/6. SD-436 depletes STAT3 and induces tumour regression in mouse leukaemia and lymphoma xenograft models.

TYD-68 is a potent and selective CRBN-recruiting TYK2 PROTAC degrader, with a DC50 value of 0.42 nM. This compound effectively inhibits IL-12 and IFN-α-induced phosphorylation of STAT4 and STAT1, thereby blocking TYK2-dependent signaling pathways. TYD-68 is applicable in psoriasis research.