tgf-β-smad3

(E)-SIS3 (SIS3), a selective Smad3 inhibitor, can attenuate TGF-β1-dependent Smad3 phosphorylation and DNA binding. It has no effect on p38 MAPK, Smad2, ERK or PI3K signaling. It also inhibits TGF-β1-induced myofibroblast differentiation of dermal fibroblasts and inhibits TGF-β2-induced endothelial cell differentiation in iPSCs.

Caerulomycin A (Caerulomycin) (Cerulomycin; Caerulomycin) is an antifungal compound. Which induces generation of T cells, enhances TGF-β-Smad3 protein signaling via suppressing interferon-γ-induced STAT1 signaling. Antifungal and antibiotic activity, and used in autoimmune diseases.

SIS3 free base is a potent and selective inhibitor of Smad3 phosphorylation, effectively inhibiting the TGF-β1-induced myofibroblast differentiation of fibroblasts.

ALK5-IN-8 is a highly effective inhibitor of TGFβRI (ALK5). It hinders the phosphorylation of ALK5 on downstream signaling proteins (Smad2 or Smad3) by obstructing the interaction between TGFβRI and ligands. Consequently, it disrupts or prevents TGF-β signaling. ALK5-IN-8 shows promise in the study of diverse diseases associated with ALK5-mediated pathways[1].

TGFβ-IN-2 (Compound 9d) effectively inhibits TGF-β-induced accumulation of total collagen in NRK-49F cells, with an IC50 value of 4.31 μM. It also suppresses the TGF-β-induced in vitro expression of COL1A1, α-SMA, and p-Smad3. Additionally, TGFβ-IN-2 shows promise as a potential anti-fibrosis compound for in vivo applications through oral administration [1].

Halofuginone (RU-19110), the competitive inhibitor of prolyl-tRNA synthetase(Ki=18.3 nM), could also down-regulate Smad3 and blocked TGF-β signaling at 10 ng ml in the mammal.

NCGC00378430 is a potent SIX1 EYA2 interaction inhibitor that disrupts the [SIX1 EYA2] complex, EMT, and metastasis.

ETTAC-2 is an LRG1 PROTAC degrader that facilitates the ubiquitination and degradation of LRG1, with a DC50 of 8.38 µM. It inhibits the TGF-β-Smad3 signaling pathway and reduces the secretion of proteins associated with fibrosis. ETTAC-2 can slow the progression of renal fibrosis.

Chebulinic acid is a potent inhibitor of M. tuberculosis DNA gyrase. It also can inhibit SMAD-3 phosphorylation and H+ K+-ATPase activity.