TGF-beta/Smad Inhibitor

Pirfenidone (AMR69) is an antifibrotic agent that attenuates CCL2 and CCL12 production in fibrocyte cells. Pirfenidone has growth-inhibitory effect and reduces TGF-β2 protein levels in human glioma cell lines. Pirfenidone also has anti-inflammatory activities.

SIS3 is a potent and selective inhibitor of Smad3 with an IC₅₀ of 3 μM for Smad3 phosphorylation. SIS3 inhibits the myofibroblast differentiation of fibroblasts by TGF-β1.

Halofuginone (RU-19110), a Febrifugine derivative, is a competitive prolyl-tRNA synthetase inhibitor with a K_i of 18.3 nM. Halofuginone is a specific inhibitor of type-I collagen synthesis and attenuates osteoarthritis (OA) by inhibition of TGF-β activity. Halofuginone is also a potent pulmonary vasodilator by activating Kv channels and blocking voltage-gated, receptor-operated and store-operated Ca²⁺ channels. Halofuginone has anti-malaria, anti-inflammatory, anti-cancer, anti-fibrosis effects.

Ponsegromab is a Growth differentiation factor 15 (GDF15) inhibitor with human, cynomolgus monkey, and mouse target IC₅₀ values of 0.123 nM, 0.053 nM, and 0.102 nM, respectively. Ponsegromab acts as a chemosensitizer, increases intracellular reactive oxygen species, reduces glutathione levels. Ponsegromab can be used for the research of oxaliplatin-resistant colorectal cancer.

PDIC-DPC is a HMGA1 inhibitor and lung-targeting agent. PDIC-DPC upregulates STING expression and enhances STING-mediated immune signaling. PDIC-DPC inhibits the TGFβ-Smad pathway and activates AMPK. PDIC-DPC forms nanocomplexes with fibrinogen β chain and vitronectin, and achieves lung-specific accumulation by binding to pulmonary endothelial receptors. PDIC-DPC reverses established pulmonary fibrosis, reduces collagen deposition, restores alveolar structure, improves pulmonary function, and inhibits in situ ESCC growth. PDIC-DPC can be used for the research of esophageal squamous cell carcinoma and idiopathic pulmonary fibrosis.

Trabedersen sodium scrambled negative control is the sequence scrambled negative control of Trabedersen sodium.

Oxymatrine, an alkaloid from Sophora flavescens Alt. with anti-inflammatory, antifibrosis, and antitumor effects, inhibits the iNOS expression and TGF-β/Smad pathway. Oxymatrine inhibits bocavirus minute virus of canines (MVC) replication, reduces viral gene expression and decreases apoptosis induced by viral infection.

Rentosertib (INS018 055) (compound 112) is the orally active TNIK and MAP4K4 inhibitor with IC₅₀ values of 12-120, 12-120 nM, respectively.

Fresolimumab (GC1008) is a human monoclonal antibody against TGF-β that neutralizes all mammalian active subtypes of TGF-β. The binding affinity of Fresolimumab to TGF-β2 is 1.8 nM. Fresolimumab improves Bleomycin (HY-108345)-induced acute lung injury. Fresolimumab radiolabeled with ⁸⁹Zr can be used for PET analysis of TGF-β expression, antibody uptake and organ distribution. Fresolimumab can be used in the study of cancer, osteogenesis imperfecta, fibrosis and kidney disease.

Buloxibutid (AT2 receptor agonist C21) is an orally active, selective angiotensin II type 2 receptor (AT2R) agonist, with a K_i value of 0.4 nM for porcine AT2R. Buloxibutid exerts effects such as vasodilation, anti-inflammation, anti-fibrosis (promoting the expression of collagenase MMP-13) and tissue repair mainly by activating the NO/cGMP pathway, inhibiting the pro-proliferative MAPK signaling, and suppressing the pro-fibrotic TGF-β/Smad pathway as well as the inflammatory NF-κB pathway. Buloxibutid can be used in research related to idiopathic pulmonary fibrosis, hypertension, and systemic sclerosis.

Demethylzeylasteral is an orally active triterpenoid compound isolated from Tripterygium wilfordii, which has functions such as anti-inflammatory, anti-tumor, anti fertility, estrogen metabolism regulation, immune suppression, and immune system regulation ^[1][2].

Luspatercept (ACE-536) is a recombinant modified ActRIIB fusion protein that binds with transforming growth factor β superfamily ligands. Luspatercept increases the erythrocyte numbers and promotes maturation of erythroid precursors. Luspatercept binds with GDF11 and inhibits Smad2/3 signaling. Luspatercept can be used for the research of anemia.

Visugromab (CTL-002) is a GDF-15 neutralizing IgG4 mAb. Visugromab has synergistic anticancer activity with the anti-PD1 antibody Nivolumab (HY-P9903) and can effectively act on PD-1/PD-L1 relapsed/refractory metastatic solid tumors. Recommend Isotype Controls: Human IgG4 (S228P) kappa, Isotype Control (HY-P99003).

Apitegromab (SRK-015) is an anti-promyostatin monoclonal antibody. Apitegromab can be used for the research of neuromuscular disease including spinal muscular atrophy.

Trevogrumab (REGN-1033) is a monoclonal antibody targeting GDF8 (growth differentiation factor 8, also known as myostatin). Trevogrumab is used in research on muscle wasting conditions, including disuse atrophy, chronic diseases, and changes in food and nutrient intake.

NCB-0846 is an orally active, selective inhibitor for Wnt, that inhibits Traf2- and Nck-interacting kinase (TNIK) with an IC₅₀ of 21 nM. NCB-0846 blocks TGF-β signaling pathway by inhibiting SMAD2/3 phosphorylation and nuclear translocation.

Hydrochlorothiazide (HCTZ), an orally active diuretic agent of the thiazide class, inhibits transforming TGF-β/Smad signaling pathway. Hydrochlorothiazide has direct vascular relaxant effects via opening of the calcium-activated potassium (KCA) channel. Hydrochlorothiazide improves cardiac function, reduces fibrosis and has antihypertensive effect.

Sotatercept (mIgG2a) (RAP-011), the murine homolog of Sotatercept (ACE-011) (HY-P99590), is a soluble activin receptor type IIA (ActRIIA) ligand trap. Sotatercept (mIgG2a) inhibits the binding of activin A and other members of the TGF-β superfamily (such as Activin A/B, GDF11 and BMP9/10) to their receptors by combining and neutralizing them, thereby regulating cell proliferation and differentiation. Sotatercept (mIgG2a) mainly inhibits the SMAD2/3 signaling pathway, and can be used in various diseases such as chronic kidney disease. Sotatercept (mIgG2a) reduces the expression of erythropoietic hepcidin (ERFE), regulates iron metabolism, and promotes red blood cell production. Sotatercept (mIgG2a) has a dual effect of promoting bone formation (anabolic) and inhibiting bone resorption (catabolic).

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

Halofuginone (RU-19110) hydrobromid, a Febrifugine derivative, is a competitive prolyl-tRNA synthetase inhibitor with a K_i of 18.3 nM. Halofuginone hydrobromid is a specific inhibitor of type-I collagen synthesis and attenuates osteoarthritis (OA) by inhibition of TGF-β activity. Halofuginone hydrobromid is also a potent pulmonary vasodilator by activating Kv channels and blocking voltage-gated, receptor-operated and store-operated Ca²⁺ channels. Halofuginone hydrobromid has anti-malaria, anti-inflammatory, anti-cancer, anti-fibrosis effects.