TGF-β/Smad

HSD1590 is a potent inhibitor of Rho-associated protein kinases, with IC₅₀ values of 1.22 nM for ROCK1 and 0.51 nM for ROCK2. It exhibits strong binding affinity to ROCK isoforms (K\_d < 2 nM) and demonstrates low cytotoxicity, making it suitable for further research applications.

CRT0066854 is a potent and selective inhibitor of atypical protein kinase C (PKC) isoenzymes. It inhibits full-length PKCι, PKCζ, and ROCK-II with IC₅₀ values of 132 nM, 639 nM, and 620 nM, respectively.

AS1892802 is a potent, orally active, and highly selective inhibitor of Rho-associated kinase (ROCK). It exhibits a rapid onset of antinociceptive effect, comparable to that of Tramadol and Diclofenac. Unlike traditional analgesics, AS1892802 does not induce gastric irritation or abnormal behavior, making it a promising candidate for research in the treatment of severe osteoarthritis pain.

PF-4950834 is a potent, selective, and orally bioavailable ATP-competitive inhibitor of Rho-associated kinases, with IC₅₀ values of 8.35 nM for ROCK2 and 33.12 nM for ROCK1. It effectively inhibits neutrophil migration and is suitable for research on inflammation and immune cell regulation.

OXA-06 hydrochloride is an ATP-competitive inhibitor of Rho-associated protein kinase (ROCK) that suppresses anchorage-dependent growth and invasion of non-small cell lung cancer (NSCLC) cell lines. It inhibits cofilin phosphorylation without inducing apoptosis.

Hispidin is a phenolic compound and protein kinase C (PKC) inhibitor derived from *Phellinus linteus*. It exhibits strong antioxidant, anticancer, antidiabetic, and anti-dementia activities, making it a promising candidate for research in various disease models.

IDE2 is a cell-permeable small molecule that promotes definitive endoderm formation in both mouse and human embryonic stem cells (ESCs) through activation of the TGF-β signaling pathway.

Lobeglitazone sulfate is a novel thiazolidinedione and an orally active agonist of peroxisome proliferator-activated receptors (PPARs), with EC50 values of 137.4 nM for PPARγ and 546.3 nM for PPARα. It also acts as an inhibitor of the ERK/JNK/Smad/NF-κB signaling pathways. Lobeglitazone sulfate exhibits anti-inflammatory, anti-diabetic, anti-fibrotic, and anti-atherosclerotic activities, supporting its potential in the treatment of metabolic and inflammatory diseases.

Gardenin A is an orally active synthetic polymethoxyflavone (PMF) analogue with neurotrophic properties, promoting neurite outgrowth and neuronal differentiation. It enhances neuritogenesis through activation of the MAPK/ERK, PKC, and PKA pathways, independent of TrkA and CREB signaling. Additionally, Gardenin A exhibits sedative, anxiolytic, antidepressant, and anticonvulsant effects, making it a promising compound for neurological and neuropsychiatric research.

Gondoic acid (cis-11-Eicosenoic acid) is a monounsaturated long-chain fatty acid found in various plant oils and nuts. It exhibits anti-inflammatory activity by reducing reactive oxygen species (ROS) production and inhibiting the PKCθ/ERK/STAT3 signaling pathway. Gondoic acid is also utilized as a raw material in medical applications and as a moisturizing agent in cosmetic formulations.

Lobeglitazone is a novel thiazolidinedione-class compound and an orally active dual agonist of peroxisome proliferator-activated receptors (PPARs), with EC₅₀ values of 137.4 nM for PPARγ and 546.3 nM for PPARα. In addition to its metabolic effects, Lobeglitazone functions as an inhibitor of multiple pro-inflammatory and pro-fibrotic signaling pathways, including ERK, JNK, Smad, and NF-κB. Lobeglitazone exhibits a broad range of pharmacological activities, including anti-inflammatory, anti-diabetic, anti-fibrotic, and anti-atherosclerotic effects. These properties make it a promising candidate for therapeutic research in metabolic syndrome, type 2 diabetes, cardiovascular disease, and fibrosis-related conditions.

MY-673 is a colchicine binding site inhibitor (CBSI) that disrupts microtubule dynamics by inhibiting tubulin polymerization. In addition to its antimitotic effects, MY-673 suppresses the ERK signaling pathway, which leads to modulation of SMAD4 protein expression within the TGF-β/SMAD signaling axis. These combined actions result in potent inhibition of cancer cell proliferation and migration, and the induction of apoptosis, both in vitro and in vivo. MY-673 holds promise as a therapeutic candidate for targeting cancers driven by aberrant microtubule dynamics and dysregulated TGF-β/ERK signaling.

4′-Demethylnobiletin is a bioactive metabolite derived from citrus polymethoxyflavones, known for its neuroprotective and cognition-enhancing properties. It activates the PKA/ERK/CREB signaling pathway and enhances CRE (cAMP response element)-mediated transcription in hippocampal neurons, processes essential for synaptic plasticity and memory formation. Additionally, 4′-Demethylnobiletin reverses memory impairment caused by NMDA receptor antagonism by stimulating ERK signaling, highlighting its therapeutic potential for neurodegenerative diseases and cognitive dysfunction.

HA-1004 is a selective and multifunctional inhibitor of cyclic nucleotide-dependent protein kinases, including protein kinase A (PKA) and cyclic GMP-dependent protein kinase (PKG). It regulates key second messenger pathways involving cyclic AMP and cyclic GMP and has broad pharmacological effects. HA-1004 inhibits lipolysis and induces vascular smooth muscle relaxation, acting as a vasodilator. It also functions as a calcium antagonist, contributing to its ability to suppress contraction in rabbit aortic strips. In neurological models, HA-1004 has been shown to antagonize ERK and tyrosine hydroxylase (TH) phosphorylation in morphine abstinence rat models, suggesting potential relevance in addiction and neurochemical regulation. Its diverse actions make it a valuable tool for studying cardiovascular, metabolic, and neurobiological processes.

ML192 is a selective antagonist of G protein-coupled receptor 55 (GPR55), effectively inhibiting GPR55-mediated signaling pathways. It blocks β-arrestin trafficking, suppresses ERK1/2 phosphorylation, and prevents PKCβII translocation, thereby interfering with downstream cellular responses. ML192 is a valuable tool for studying the physiological and pathological roles of GPR55 in processes such as inflammation, pain, cancer, and metabolic regulation.

SY-LB-35 is a potent agonist of bone morphogenetic protein (BMP) receptors, capable of activating both canonical and non-canonical signaling pathways. In the C2C12 myoblast cell line, SY-LB-35 significantly enhances cell proliferation and viability, promoting cell cycle progression by increasing the proportion of cells in the S and G2/M phases. Mechanistically, it activates the canonical Smad pathway as well as non-canonical PI3K/Akt, ERK, p38, and JNK signaling cascades. These properties make SY-LB-35 a valuable tool for studying BMP-related cellular processes and a potential therapeutic candidate for tissue regeneration and muscle repair.

(S,R,S)-AHPC-C2-amide-benzofuranylmethyl-pyridine functions as a dual-target PROTAC, effectively inducing ubiquitination and degradation of Smad3 while simultaneously enhancing HIF-α protein levels. This compound exhibits multi-pathway anti-fibrotic activity and renal protective properties, making it valuable for research on renal anemia. Additionally, it has potential applications in studying prostate cancer and other malignancies, contributing to a deeper understanding of cancer biology and treatment modalities.

Bilobetin acts as a PPARα activator, enhancing lipid metabolism and insulin sensitivity. It effectively reduces blood lipid levels by promoting hepatic lipid uptake and oxidation, while decreasing triglyceride secretion and accumulation in tissues. Additionally, Bilobetin stimulates the phosphorylation and nuclear translocation of PPARα, resulting in increased cAMP levels and PKA activity. This compound is significant for research in metabolic disorders, particularly those related to insulin resistance and lipid regulation.

Akt1&PKA-IN-2 (Compound R-29) is a AKT1 and PKA inhibitor with selectivity for CDK2, with IC50 values of 0.007 and 0.01 μM, respectively. Akt1&PKA-IN-2 is applicable for cancer research.

Akt1&PKA-IN-1 is a potent dual inhibitor targeting both Akt and Protein Kinase A (PKA), exhibiting IC50 values of 0.03 μM for PKAα and 0.11 μM for Akt, with a higher IC50 of 9.8 μM for cyclin-dependent kinase 2 (CDK2). This compound demonstrates selective inhibition of CDK2, making it a valuable tool for research in cancer biology and cellular signaling pathways. Akt1&PKA-IN-1 is useful for studying the regulatory role of these kinases in cellular processes and potential therapeutic applications.

H-9 Dihydrochloride is a potent inhibitor of protein kinase A (PKA), effectively modulating signaling pathways involved in various biological functions. At a concentration of 10 μM, it significantly diminishes the excitatory response to 5-hydroxytryptamine (5-HT) and exhibits direct effects on pharyngeal activity. Additionally, H-9 Dihydrochloride inhibits signal transduction and cell growth in epidermal growth factor (EGF)-dependent epithelial cell lines, making it a valuable tool for research in cellular signaling and growth regulation.

Netarsudil hydrochloride is a selective inhibitor of Rho-associated protein kinases (ROCK I and ROCK II) and a reversible inhibitor of the norepinephrine transporter (NET). It effectively lowers intraocular pressure by promoting relaxation of trabecular meshwork cells and dilation of episcleral veins, enhancing aqueous humor outflow while simultaneously reducing its production. This compound is primarily utilized in research related to ocular hypertension and primary open-angle glaucoma.

Metadoxine is a potent inhibitor of protein kinase A (PKA), specifically disrupting the PKA-cAMP response element binding protein (CREB) pathway. This compound is effective in blocking adipocyte differentiation, making it valuable for research into metabolic disorders and obesity-related pathways. Its ability to modulate PKA activity demonstrates potential applications in studying cellular signaling and metabolic regulation.

PT-262 is a selective ROCK inhibitor with an IC50 of approximately 5 μM. This compound induces loss of mitochondrial membrane potential and enhances caspase-3 activation, leading to apoptosis. PT-262 also inhibits phosphorylation of ERK and CDC2 through a p53-independent mechanism, disrupts cytoskeletal dynamics, and impairs cell migration. Its efficacy in promoting anti-cancer activity makes PT-262 a valuable reagent for cancer research.

Y-27632 hydrochloride hydrate is a selective inhibitor of Rho-associated protein kinases (ROCK-I and ROCK-II), exhibiting ATP-competitive activity with IC50 values of 220 nM and 300 nM, respectively. This compound has been shown to reduce Doxorubicin-induced apoptosis in human cardiac stem cells and suppress apoptosis in dissociation-induced murine prostate stem/progenitor cells. Additionally, Y-27632 hydrochloride hydrate enhances the differentiation of human induced pluripotent stem cells (hIPSCs) towards a mesendodermal lineage by modulating epithelial-mesenchymal transition.

8-Bromo-cAMP, a cyclic AMP analog, serves as a potent activator of cyclic AMP-dependent protein kinase (PKA). This compound demonstrates significant anti-proliferative and apoptotic effects in various cancer cell lines, making it a valuable tool for cancer research. Its role in modulating PKA activity provides insights into cellular signaling pathways and the mechanisms of tumorigenesis. 8-Bromo-cAMP is commonly utilized in studies aimed at understanding the therapeutic potential of targeting PKA in cancer treatment.

PKCβ Inhibitor 1 is a highly selective, ATP-competitive inhibitor targeting protein kinase C beta (PKCβ) with IC50 values of 21 nM for PKCβ1 and 5 nM for PKCβ2. This compound demonstrates over 60-fold selectivity for PKCβ2 compared to other PKC isozymes such as PKCα, PKCγ, and PKCε. It is a valuable tool for investigating the roles of PKCβ in various signaling pathways and its implications in diseases such as cancer and diabetes.

RKI-1447 dihydrochloride is a selective inhibitor of Rho-associated kinase (ROCK), exhibiting IC50 values of 14.5 nM and 6.2 nM for ROCK1 and ROCK2, respectively. This compound effectively suppresses the growth of colorectal carcinoma cells while inducing apoptosis, making it a valuable tool for research in cancer biology and therapeutics targeting ROCK signaling pathways.

8-Benzylthio-cAMP is a selective activator of cAMP-dependent protein kinases (PKA) that serves as a stable derivative of cyclic adenosine monophosphate (cAMP). Its increased resistance to phosphodiesterase hydrolysis and enhanced membrane permeability make it an effective tool for probing cAMP signaling pathways. This compound is widely used in research to investigate the regulatory roles of cAMP in cellular processes such as proliferation, differentiation, and apoptosis.

(14S,15R)-14-Deoxyoxacyclododecindione is a selective inhibitor of the TGF-β-dependent Smad2/3 and IL-4-dependent STAT6 signaling pathways, exhibiting IC50 values of 90 nM and 20 nM, respectively. This compound has significant potential for applications in cancer research and the study of fibrotic diseases by modulating key signaling events. Its ability to inhibit these pathways makes it a valuable tool for investigating the role of TGF-β and IL-4 in various biological processes.

TGF-βRI inhibitor 3 is a selective inhibitor of the TGF-β receptor type I (ALK5), designed to effectively disrupt TGF-β signaling pathways. It demonstrates notable inhibitory activity with IC50 values of 0.63 μM against ALK5 and 13 μM against c-Src kinase. This compound is valuable for research applications targeting fibrosis, cancer progression, and other TGF-β-mediated biological processes.

RepSox hydrochloride is a highly selective inhibitor of transforming growth factor-β receptor I (TGF-β-RI) and activin-like kinase 5 (ALK5). It effectively inhibits ALK5 autophosphorylation with an IC50 value of 4 nM. This reagent is valuable for investigating the roles of TGF-β signaling in obesity and metabolic disorders, including type 2 diabetes.

MK2-IN-1 is a selective inhibitor of MAPKAPK2 (MK2), exhibiting an IC50 of 0.11 µM. This compound significantly interferes with the phosphorylation of serine residues in Tfcp2l1, with an EC50 of 0.35 µM for phosphorylated HSP27. MK2-IN-1 serves as a valuable tool for studying the role of MK2 in cellular signaling pathways and its implications in various biological processes.

ROCK-IN-5 (compound I-B-37) is a potent inhibitor of Rho-associated protein kinase (ROCK), as well as ERK, GSK-3, and AGC protein kinases. This compound exhibits significant biological activity in regulating cellular proliferation and has applications in researching cardiac conditions and neurodegenerative diseases. Its broad inhibitory profile makes it a valuable tool for studies aimed at understanding signaling pathways involved in various disease mechanisms.

HA-1004 hydrochloride is a selective inhibitor of protein kinase A (PKA), known for its ability to inhibit lipolysis and promote vascular relaxation. In addition to its PKA inhibition, HA-1004 also functions as a dual inhibitor of cyclic GMP-dependent protein kinase and cyclic AMP-dependent protein synthesis, impacting smooth muscle and second messenger pathways. This compound serves as a vasodilator, effective in inhibiting the contraction of rabbit aortic strips, and can also antagonize ERK and tyrosine hydroxylase phosphorylation in morphine abstinence models.

HA-1004 dihydrochloride is a selective inhibitor of protein kinase A (PKA), demonstrating significant inhibition of lipolysis and induction of vascular relaxation. Additionally, it acts as a dual inhibitor of cyclic GMP-dependent protein kinase and cyclic AMP-dependent protein kinase, playing a crucial role in regulating smooth muscle activity and second messenger pathways. This compound serves as a vasodilator, effectively inhibiting contraction in rabbit aortic strips, and also antagonizes ERK and tyrosine hydroxylase phosphorylation in models of morphine abstinence.

NRL-1049 dihydrochloride is a selective inhibitor of rho-associated protein kinase 2 (ROCK2), exhibiting an IC50 value of 0.59 μM. This compound demonstrates a remarkable selectivity for ROCK2 over ROCK1, with an IC50 of 26 μM, effectively inhibiting ROCK2 activity. NRL-1049 dihydrochloride has significant potential in research applications focused on the preservation of the blood-brain barrier following acute injury.

Zelasudil is a selective inhibitor of Rho-associated coiled-coil containing protein kinase 2 (ROCK2), demonstrating significant anti-fibrotic activity. This small molecule enhances immunomodulatory responses in metastatic pancreatic tumors, promoting increased infiltration of CD8+ and CD4+ T cells while reducing FOXP3+ regulatory T cells at the tumor periphery. Zelasudil shows potential for advancing research in pancreatic ductal adenocarcinoma and related therapeutic strategies.

Netarsudil functions as a competitive inhibitor of Rho-associated protein kinases (ROCK I and ROCK II) and a reversible inhibitor of the norepinephrine transporter (NET). This compound effectively reduces intraocular pressure through ROCK inhibition, promoting relaxation of trabecular meshwork cells and dilation of episcleral veins, facilitating aqueous humor outflow while simultaneously decreasing aqueous humor production via NET inhibition. Netarsudil is primarily utilized in research related to ocular hypertension and primary open-angle glaucoma.

Belumosudil mesylate is a selective inhibitor of the Rho-associated kinase 2 (ROCK2), demonstrating an IC50 of 105 nM for ROCK2 and 24 µM for ROCK1. This compound exhibits significant anti-fibrotic properties, making it valuable for research in fibrosis-related pathways and diseases. Belumosudil mesylate is applicable in studies aimed at understanding the role of ROCK signaling in various physiological and pathological processes.

SAR407899 is a selective and potent ROCK inhibitor that acts competitively with ATP, exhibiting an IC50 of 135 nM for ROCK-2 and Kis of 36 nM in human and 41 nM in rat ROCK-2. This compound demonstrates stable inhibition of migrasome formation and is valuable for research into cellular migration and related processes. Its application in studies of ROCK signaling pathways may enhance the understanding of various physiological and pathological conditions.

Netarsudil dimesylate is a potent inhibitor of Rho-associated kinases (ROCK I and ROCK II) and also serves as a reversible inhibitor of the norepinephrine transporter (NET). It effectively reduces intraocular pressure through ROCK inhibition, leading to the relaxation of trabecular meshwork cells and dilation of episcleral veins, which facilitates aqueous humor outflow, while simultaneously inhibiting NET to diminish aqueous humor production. This compound is primarily utilized in research related to ocular hypertension and primary open-angle glaucoma.

Sovesudil is a potent Rho kinase (ROCK) inhibitor that functions through ATP-competitive mechanisms, exhibiting IC50 values of 3.7 nM for ROCK-I and 2.3 nM for ROCK-II. It effectively lowers intraocular pressure (IOP) while minimizing the risk of hyperemia, making it a valuable compound for ocular research and potential therapeutic applications in glaucoma treatment and other related conditions.

Verosudil is a potent Rho-associated protein kinase (ROCK) inhibitor, demonstrating robust inhibitory activity against both ROCK1 and ROCK2 with a Ki value of 2 nM. Its relatively lower selectivity for other kinases such as PKA, PKCT, MRCKA, and CAMK2A provides additional research avenues. Verosudil enhances trabecular outflow capacity, making it a valuable reagent in studies targeting intraocular pressure reduction. This compound is particularly relevant for research focused on glaucoma and ocular hypertension.

3-(4-Pyridyl)indole is a selective Rho-kinase (ROCK) inhibitor, exhibiting an IC50 value of 25 μM. This compound is known to effectively inhibit cellular blebbing and promote the dissolution of actin stress fibers, making it a valuable reagent for studying wound healing mechanisms and cytoskeletal dynamics in various biological research applications.

GSK269962A hydrochloride is a potent ROCK inhibitor that selectively targets Rho-associated coiled-coil kinase 1 (ROCK1) and ROCK2, with IC50 values of 1.6 nM and 4 nM, respectively. It exhibits significant anti-inflammatory and vasodilatory properties, making it valuable in research applications focused on vascular biology, cardiovascular diseases, and inflammatory conditions. This compound provides a useful tool for elucidating the role of ROCK signaling in various biological processes.

CAY10746 is a selective inhibitor of Rho-associated protein kinase (ROCK), demonstrating potent inhibitory activity against ROCK I and ROCK II with IC50 values of 0.014 μM and 0.003 μM, respectively. This compound is particularly relevant for research into diabetic retinopathy (DR) and other conditions associated with abnormal vascular function. Its ability to modulate ROCK activity makes it a valuable tool in studying cellular pathways involved in inflammation and tissue remodeling.

(rac)-AR-13503 is a potent inhibitor of Rho-associated protein kinase (ROCK) and protein kinase C (PKC). It plays a significant role in regulating angiogenesis and enhancing retinal pigment epithelium (RPE) permeability. Additionally, (rac)-AR-13503 has demonstrated the ability to inhibit aberrant neovascularization in the oxygen-induced retinopathy (OIR) model in mice, making it a valuable tool for research in ocular disorders and vascular biology.

Rho-Kinase-IN-2 is a selective inhibitor of Rho Kinase (ROCK) with an IC50 value of 3 nM for ROCK2. This orally active and CNS-permeable compound is significant for investigating the role of ROCK in neurodegenerative disorders, particularly Huntington's disease. Its potent inhibition of this pathway makes it a valuable tool for exploring therapeutic strategies targeting ROCK activity in relevant biological models.

Sovesudil hydrochloride is a highly selective Rho kinase (ROCK) inhibitor that competitively binds to ATP, demonstrating IC50 values of 3.7 nM for ROCK-I and 2.3 nM for ROCK-II. It effectively reduces intraocular pressure (IOP) and is noteworthy for its ability to do so without causing hyperemia. This compound is utilized in research focused on glaucoma and other ocular conditions linked to elevated IOP.