tgf-β 3

LDN-212854 (BMP Inhibitor III), a novel BMP inhibitor, exhibits greater selectivity for BMP versus the TGF-β type I receptors; possesses differences towards ALK2(IC50=1.3 nM) versus ALK1 3 compared to other inhibitors.

(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.

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

GED-0507-34 Levo ((S)-3-(4-Aminophenyl)-2-methoxypropanoic acid), an orally available PPARγ modulator for amelioration of inflammation-driven intestinal fibrosis, decreased the expression of the pro-fibrotic genes Acta2, COL1a1, and Fn1, reduced the protein levels of α-SMA and collagen I-II, the main markers of fibrosis, as well as the major components of the TGFβ Smad pathway, and decreased the expression of IL-13, CTGF, TGFB and ACTA1, and inhibited TGF-β-induced activation of fibroblasts and IECs cell lines.

Dual Galectin-3 EGFR-IN-1 (Compound 29) is a dual inhibitor targeting Galectin-3 and EGFR, with dissociation constants (KD) of 52.29 μM and 3.31 μM, respectively. It inhibits TGF-β-induced hepatic stellate cell (HSC) activation, induces apoptosis in LX-2 cells, and shows antifibrotic activity in the liver.

TRPV1-IN-3 (compound 14) is a TRPV1 inhibitor utilized in idiopathic pulmonary fibrosis research. It demonstrates antifibrotic activity in vitro (IC50 = 0.51 μM) by inhibiting the TGF-β Smads and MAPK pathways, thereby affecting the expression of fibrosis markers collagen I and α-SMA. In vivo, TRPV1-IN-3 significantly reduces collagen deposition in lung tissue, improves alveolar structure, and increases survival rates in mice with Bleomycin-induced pulmonary fibrosis.

TGF-βRI inhibitor 3 (Compound 9ac) is a selective inhibitor of TGF-β that effectively suppresses the TGF-β signaling pathway. It exhibits IC50 values of 13 μM for c-Src kinase and 0.63 μM for ALK5 kinase.

Butaprost is a chemical compound that functions as a selective agonist for the prostaglandin E receptor (EP2). It exhibits an EC50 of 33 nM and a Ki of 2.4 μM when interacting with the murine EP2 receptor. However, Butaprost demonstrates lower activity against murine EP1, EP3, and EP4 receptors. Furthermore, it effectively attenuates fibrosis by inhibiting the TGF-β/Smad2 signaling pathway [1] [2] [3].

Lipoxygenin is an inhibitor of 5-lipoxygenase (5-LO) with an IC50value of 5 μM for inhibition of 5-LO product synthesis in isolated human granulocytes stimulated with the cation ionophore A23187 .1It inhibits hedgehog-dependent signaling in Shh-LIGHT2 cells and TGF-β-, activin A-, bone morphogenic protein (BMP)-, or Wnt-dependent signaling in HEK293T cells (IC50s = 9.3, 3.2, 8.2, 9.6, and 3.7 μM, respectively, in luciferase reporter assays). Lipoxygenin (5 and 10 μM) increases levels of troponin T (TnnT), a marker of cardiomyocyte differentiation, in human induced pluripotent stem cells (iPSCs) stimulated with BMP4 and the glycogen synthase kinase 3 (GSK3) inhibitor CHIR99021 .

TP0427736 hydrochloride is a novel and selective ALK5 inhibitor with an IC50 of 2.72 nM, capable of inhibiting Smad2 3 phosphorylation in A549 cells, reducing TGF-β-induced growth inhibition of human root sheath cells, and prolonging the anagen phase of mouse hair follicles.

H-Gly-Pro-Hyp-OH is a potent and orally available anti-photoaging collagen peptide that attenuates inflammation and reduces MMP-1 and MMP-3 levels; attenuates H2O2-induced aging of dermal fibroblasts; restores cortisol-mediated inhibition of type I collagen and GR activation and (TGF)-β signaling signaling, among other things; and improves the hydration of human skin, elasticity and anti-wrinkle properties.

BMS-986260 is a selective, and orally bioavailable TGFβR1 inhibitor(IC50 = 1.6 nM).

sTGFBR3 antagonist 1 (Compound p24) is an antagonist of soluble transforming growth factor β receptor 3 (sTGFBR3) that activates the TGF-β signaling pathway while inhibiting the IκBα NF-κB signaling pathway. It inhibits the release of NO induced by LPS in BV2 cells with an IC50 of 0.52 μM. sTGFBR3 antagonist 1 exhibits anti-inflammatory and neuroprotective activities and can enhance the permeability of the blood-brain barrier (BBB). This compound is applicable in research related to Alzheimers disease.

TGFβRI-IN-3 is a highly selective TGFβR1 inhibitor with an IC50 of 0.79 nM and exhibits 2000-fold selectivity against MAP4K4, showing potential applications in immuno-oncology [1].

Isoangustone A has antitumor activity, it can induce G1 cycle arrest in DU145 human prostate and 4T1 murine mammary cancer cells, it inhibits cell proliferation by targeting PI3K, MKK4, and MKK7 in human melanoma. Isoangustone A dampens mesangial sclerosis associated with inflammation in response to high glucose through hindering TGF-β and NF-κB signaling. Isoangustone A also shows strong ferric reducing activities and effectively scavenged DPPH, ABTS(+), and singlet oxygen radicals.

Klotho-derived peptide 1 (KP1 human) hydrochloride inhibits the interaction between TGF-β and TGF-β receptor 2, suppressing the activation of TGF-β-induced Smad2 3 and mitogen-activated protein kinase (MAPK). Additionally, it exhibits antifibrotic and renal protective effects in mouse models.