TGF-β Receptor Inhibitor

ML347 (LDN193719) is a highly selective ALK1/ALK2 inhibitor. ML347 has IC₅₀ values of 46 and 32 nM against ALK1 and ALK2, respectively, >300-fold selective over ALK3. ML347 block the phosphorylation of Smad1/5 by TGF-β1.

TGFβ1-IN-1 (compound 42) is a potent, orally active TGF-β1 inhibitor. TGFβ1-IN-1 inhibits the upregulation of TGF-β1-induced fibrosis markers (α-SMA and fibronectin) and can be used in liver fibrosis disease studies.

R-268712 is an orally active and selective ALK-5 inhibitor, with an IC₅₀ of 2.5 nM. R-268712 inhibits the phosphorylation of Smad3 in a dose-dependent manner with an IC₅₀ of 10.4 nM. R-268712 suppresses glomerulonephritis as well as glomerulosclerosis by inhibiting TGF-β signaling, which can be used in studies of renal fibrosis and cancer.

CDD-1653 is a potent and selective BMPR2 inhibitor with an IC₅₀ of 2.8 nM. CDD-1653 inhibits the catalytic activity of BMPR2 by competitively binding to its ATP pocket, specifically blocking BMP-induced downstream signaling (particularly inhibiting SMAD1/5 phosphorylation), thereby suppressing the expression of related genes. CDD-1653 can be used for research on cancer, bone diseases, and vascular and endothelial dysfunction.

Metelimumab (CAT-192) is a human IgG4 monoclonal antibody that can selectively neutralize TGFβ1.

CAY10526 is an inhibitor of Y-box binding protein 1 (YB-1) and microsomal prostaglandin E2 synthase 1 (mPGES1). CAY10526 inhibits the production of PGE₂ by suppressing YB-1 and mPGES1. CAY10526 induces cell apoptosis (apoptosis) and inhibits the JAK/STAT, TGF-β/Smad3 and PI3K/AKT signaling pathways. CAY10526 can be used in research related to melanoma, prostate cancer, esophageal adenocarcinoma, T-cell lymphoma, etc.

Vactosertib Hydrochloride (EW-7197 Hydrochloride) is a potent, orally active and ATP-competitive activin receptor-like kinase 5 (ALK5) inhibitor with an IC₅₀ of 12.9 nM. Vactosertib Hydrochloride also inhibits ALK2 and ALK4 (IC₅₀ of 17.3 nM) at nanomolar concentrations. Vactosertib Hydrochloride has potently antimetastatic activity and anticancer effect.

GSK 3008348 is a small molecule antagonist of integrin αvβ6 with IC₅₀ values for αvβ6, αvβ1, αvβ3, αvβ5, and αvβ8 are 1.50, 2.83, 12.53, 4.00, and 2.26 nM, respectively. GSK 3008348 can target the αvβ6 integrin, inhibit TGF-β activation, and thereby alleviate the fibrotic process. GSK 3008348 prevents the binding of the foot-and-mouth disease virus (FMDV) to the αvβ6 integrin receptor on the surface of host cells, thereby inhibiting the entry of the virus. GSK 3008348 can be used for research on pulmonary fibrosis and various types of cancer.

Levistolide A is an apoptosis inducer and a PEDV virus inhibitor. Levistolide A can induce apoptosis in colon cancer cells and suppress the replication of porcine epidemic diarrhea virus (PEDV) by promoting ROS generation. Levistolide A activates peroxisome proliferator-activated receptor γ (PPARγ) in N2a/APP695swe cells and reduces excessive phosphorylation of tau through the GSK3α/β pathway, improving symptoms in Alzheimer’s mice. Levistolide A improves kidney damage in 5/6 nephrectomy (Nx) mice by inhibiting the RAS,TGF-β1/Smad, and MAPK pathways.

GSK 3008348 hydrochloride is a small molecule antagonist of integrin αvβ6 with IC₅₀ values for αvβ6, αvβ1, αvβ3, αvβ5, and αvβ8 are 1.50, 2.83, 12.53, 4.00, and 2.26 nM, respectively. GSK 3008348 hydrochloride can target the αvβ6 integrin, inhibit TGF-β activation, and thereby alleviate the fibrotic process. GSK 3008348 hydrochloride prevents the binding of the foot-and-mouth disease virus (FMDV) to the αvβ6 integrin receptor on the surface of host cells, thereby inhibiting the entry of the virus. GSK 3008348 hydrochloride can be used for research on pulmonary fibrosis and various types of cancer.

Fidrisertib (BLU-782) is the orally active inhibitor for activin receptor-like kinase 2 (ALK2) that inhibits ALK2^R206H, ALK2, ALK1, ALK6, ALK3, ALK4, TGFβR2 and ALK5 with IC₅₀s of 0.2, 0.6, 3, 24, 45, 65, 67 and 155 nM, respectively.

THRX-144644 is a Lung-restricted ALK5 inhibitor with an IC₅₀ value of 0.14 nM. THRX-144644 avoids systemic toxicities associated with TGFβ pathway inhibition.

BMPR2-IN-1 TFA is a selective BMPR2 inhibitor with a human BMPR2 IC₅₀ of 506 nM and a K_d of 83.5 nM. BMPR2-IN-1 TFA functions as an ATP mimetic, forming hydrogen bonds with the BMPR2 kinase domain backbone and hydrophobic interactions with specific residues, and demonstrates high selectivity for BMPR2 over other kinases.BMPR2-IN-1 TFA can be used for the researches of cancer, pulmonary arterial hypertension and Alzheimer’s disease.

LDN193189 GMP is LDN193189 (HY-12071) produced by using GMP guidelines. GMP small molecules works appropriately as an auxiliary reagent for cell therapy manufacture. LDN193189 (DM-3189) is a potent selective BMP type I receptor (BMP I) inhibitor. LDN193189 efficiently inhibits transcriptional activity of the BMP type I receptors ALK2 and ALK3 with IC₅₀ values of 5 nM and 30 nM, respectively. LDN193189 can be used for the research of bone morphogenetic protein signalling, such as fibrodysplasia ossificans progressiva.

Pentabromopseudilin (PBrP) is a marine antibiotic isolated from the marine bacteria Pseudomonas bromoutilis and Alteromonas luteoviolaceus. PBrP exhibits antimicrobial, anti-tumour and phytotoxic activities. PBrP is a reversible and allosteric inhibitor of myosin Va (MyoVa). PBrP also is a potent inhibitor of transforming growth factor-β (TGF-β) activity. PBrP can be used for the research of fibrotic diseases and cancer.

PD-161570 is a potent and ATP-competitive human FGF-1 receptor inhibitor with an IC₅₀ of 39.9 nM and a K_i of 42 nM. PD-161570 also inhibits the PDGFR, EGFR and c-Src tyrosine kinases with IC₅₀ values of 310 nM, 240 nM, and 44 nM, respectively. PD-161570 inhibits PDGF-stimulated autophosphorylation and FGF-1 receptor phosphorylation with IC₅₀s of 450 nM and 622 nM, respectively. PD-161570 is also a bone morphogenetic proteins (BMPs) and TGF-β signaling inhibitor.

SM 16 is a ALK5/ALK4 kinase inhibitor with K_is of 10 and 1.5 nM, respectively.

TGFBR1-IN-2 (Compound AQA) is a TGFBR1 inhibitor and an antibacterial agent. TGFBR1-IN-2 is a substrate for cytochrome P450s. TGFBR1-IN-2 contains the pyridyl-6-methyl moiety necessary for Mycobacterium tuberculosis inhibition and has potent inhibitory activity against non-replicating and persistent Mycobacterium tuberculosis.

Zilurgisertib (INCB-000928; NBU-928) is a selective ALK2 inhibitor with an IC₅₀ value of 15 nM. Zilurgisertib inhibits SMAD1/5 phosphorylation with an IC₅₀ value of 63 nM. Zilurgisertib inhibits hepcidin production and improve anemia. Zilurgisertib can be used in melanoma research.

Ontunisertib (AGMB-129) is an orally active and selective gastrointestinal-restricted ALK5 (TGFβR1) inhibitor. Ontunisertib blocks signalling of the pro-fibrotic TGFβ pathway. Ontunisertib can be used for the research of fibrostenotic Crohn’s disease.