Stem Cells/Wnt

GSK3 Inhibitor XIII (GSK3i XIII) is an ATP-binding site inhibitor of GSK-3.

CB-103 is a first-in-class, orally active protein-protein interaction (PPI) inhibitor of the NOTCH transcriptional activation complex. CB-103 has anti-tumor activity.

Ellagic acid hydrate is a natural antioxidant, and acts as a potent and ATP-competitive CK2 inhibitor, with an IC50 of 40 nM and a Ki of 20 nM.

BioE-1115 is a highly selective and potent PAS kinase (PASK) inhibitor with an IC50 of ~4 nM. BioE-1115 is also a potent casein kinase 2α inhibitor with an IC50 of ~10 μM.

LDN193189 HCl (DM-3189) is the hydrochloride salt of LDN193189, which is a selective BMP signaling inhibitor, and inhibits the transcriptional activity of the BMP type I receptors ALK2 and ALK3 with IC50 of 5 nM and 30 nM in C2C12 cell lines, respectively, 200-fold selectivity for BMP versus TGF-β.

L-Quebrachitol is a natural product isolated from many plants, promotes osteoblastogenesis by uppregulation of BMP-2, runt-related transcription factor-2 (Runx2), MAPK (ERK, JNK, p38α), and Wnt/β-catenin signaling pathway.

MYF-01-37 is a novel covalent inhibitor of TEAD targeting Cys380.

BRD0705 is a potent, paralog selective and orally active GSK3α inhibitor.

CKI-7 is a potent and ATP-competitive casein kinase 1 (CK1) inhibitor with an IC50 of 6 μM and a Ki of 8.5 μM.CKI-7 is a selective Cdc7 kinase inhibitor.

SAHM1, a peptide mimetic of a dominant negative form of mastermind-like (MAML), inhibits canonical Notch transcription complex formation. SAHM1 can be used for the research of allergic airway inflammation in mice.

Casein Kinase 2 Substrate Peptide is a common CK2 substrate peptide. Casein Kinase 2 Substrate Peptide is synthesized with its C-terminus conjugated to 5-[(2-aminoethyl)amino]naphthalene-1-sulfonic acid (EDANS). Casein Kinase 2 Substrate Peptide can be used for protein kinase CK2 activity determination.

PY-60 is a potent and selective small-molecule activator of YAP transcriptional activity that targets annexin A2 (ANXA2) with a dissociation constant (Kᴅ) of 1.4 µM. By directly binding to ANXA2, PY-60 antagonizes its inhibitory regulation of YAP, thereby enhancing YAP-dependent gene expression and promoting transcriptional activation within the Hippo signaling pathway.

Cytochalasin D (also known as Zygosporin A) is a cell-permeable fungal metabolite and a potent inhibitor of actin polymerization. It binds to G-actin, thereby disrupting the G-actin–cofilin interaction and preventing cofilin association with F-actin. Through this mechanism, Cytochalasin D reduces both actin polymerization and depolymerization rates in living cells, leading to profound effects on cytoskeletal organization and cell morphology. In addition, Cytochalasin D suppresses exosome release, consequently decreasing survivin levels within the tumor microenvironment. It also promotes phosphorylation and cytoplasmic retention of YAP, implicating it in the regulation of mechanotransduction and tumor cell signaling.

Cardionogen 1 (CDNG1/vuc230) is an inhibitor of the Wnt signaling pathway that suppresses Myc-induced liver tumorigenesis. In zebrafish embryos, Cardionogen 1 inhibits cardiomyocyte formation when administered before gastrulation, but promotes cardiomyocyte formation when applied during or after gastrulation. It holds potential for research in cancer and cardiovascular disease.

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.

BRD4/CK2-IN-1 is the first highly potent and orally active dual inhibitor of BRD4 and casein kinase 2 (CK2), with IC₅₀ values of 180 nM and 230 nM, respectively. It exhibits strong anticancer activity with minimal toxicity, and induces apoptosis and autophagy-associated cell death in triple-negative breast cancer (TNBC) cells.

TFMB-(S)-2-HG is a potent inhibitor of TET2 and EglN prolyl hydroxylases. It downregulates Wnt3a and intranuclear β-catenin protein expression, and inhibits osteogenic differentiation of cells. TFMB-(S)-2-HG shows potential for research in acute myeloid leukemia (AML).

Zamaporvint (RXC004) is an orally active and selective Wnt pathway inhibitor that targets the membrane-bound O-acyltransferase Porcupine. By inhibiting Wnt ligand palmitoylation, it blocks Wnt ligand secretion and downstream pathway activation. Zamaporvint exhibits a favorable pharmacokinetic profile and shows potent antiproliferative activity in Wnt ligand-dependent colorectal and pancreatic cancer cell lines. With multiple antitumor mechanisms, it is a promising agent for cancer research.

α-Amyrin is an orally active pentacyclic triterpenoid that activates the ERK and GSK-3β signaling pathways. It is studied for its potential in treating metabolic syndrome induced by a high-fructose diet and cognitive dysfunction associated with reduced cholinergic neurotransmission.

TMCB (CK2/ERK8-IN-1) is a dual inhibitor of casein kinase 2 (CK2) and ERK8 (MAPK15/ERK7), with a Ki of 0.25 µM for CK2 and IC50 values of 0.50 µM for both targets. It also exhibits binding affinity for PIM1 (Ki = 8.65 µM), HIPK2 (Ki = 15.25 µM), and DYRK1A (Ki = 11.9 µM). CK2/ERK8-IN-1 demonstrates pro-apoptotic activity and is a useful tool for studying kinase-mediated cell survival pathways.

Withanolide B, a bioactive constituent of *Withania somnifera* Dunal, promotes osteogenic differentiation of human bone marrow-derived mesenchymal stem cells (hBMSCs) through activation of the ERK1/2 and Wnt/β-catenin signaling pathways. It also demonstrates neuroprotective, anti-arthritic, anti-aging, and anti-cancer properties.

Penehyclidine hydrochloride (also known as Penequinine hydrochloride) is a selective anticholinergic agent that acts as an antagonist of muscarinic M1 and M3 receptors. It exerts anti-inflammatory effects by modulating immune signaling in lung tissue, notably through activation of the NF-κB pathway and inhibition of pro-inflammatory cytokine release. In preclinical studies, Penehyclidine hydrochloride has been shown to alleviate pulmonary inflammation in rat models of chronic obstructive pulmonary disease (COPD), particularly under conditions of mechanical ventilation. These properties suggest its potential utility in managing respiratory inflammatory conditions and improving outcomes in mechanically ventilated patients with COPD.

PROTAC YAP degrader-1 (compound YZ-6) is a bifunctional molecule designed to selectively degrade Yes-associated protein (YAP), a key effector of the Hippo signaling pathway involved in cell proliferation, survival, and tumorigenesis. In addition to promoting proteasomal degradation of YAP, it also inhibits YAP's nuclear localization, thereby impairing its transcriptional co-activator functions.YZ-6 is composed of two main components:Target protein ligand: NSC682769 and E3 ubiquitin ligase recruiter with linker: (R,S,R)-AHPC-PEG2-C2-Boc which recruits the VHL E3 ligase complex. The linker used in the PROTAC design is Acid-PEG2-C2-Boc, facilitating optimal spatial orientation for ternary complex formation. The demethylated analog Demethyl-NSC682769 serves as a target ligand activity control. PROTAC YAP degrader-1 represents a novel tool for functional YAP inhibition and offers potential therapeutic applications in YAP-driven cancers and fibrotic diseases.

TMX-4116 is a selective degrader of casein kinase 1α (CK1α), demonstrating preferential degradation activity with DC₅₀ values below 200 nM in MOLT4, Jurkat, and MM.1S cell lines. By targeting CK1α for proteasomal degradation, TMX-4116 offers a promising tool for investigating CK1α function and holds potential for therapeutic research in multiple myeloma and related hematologic malignancies.

SJ3149 is a selective and potent molecular glue degrader that targets casein kinase 1α (CK1α) for proteasomal degradation. By promoting CK1α elimination, SJ3149 exhibits broad antiproliferative activity across various cancer models. It serves as a valuable tool for exploring CK1α-dependent signaling pathways and holds promise for therapeutic development in oncology research.

HS-276 is an orally bioavailable, potent, and highly selective inhibitor of transforming growth factor-β–activated kinase 1 (TAK1), with a Kᵢ of 2.5 nM. It exhibits strong inhibition of TAK1 and moderate activity against a panel of other kinases, including CLK2, GCK, ULK2, MAP4K5, IRAK1, NUAK, CSNK1G2, CAMKKβ-1, and MLK1, with respective IC₅₀ values ranging from 8.25 to 5585 nM. HS-276 is a valuable tool for investigating TAK1-mediated signaling pathways and holds therapeutic potential for inflammatory conditions such as rheumatoid arthritis (RA).

SGC-CK2-1 is a highly potent, ATP-competitive, and cell-permeable chemical probe that selectively targets casein kinase 2 (CK2), exhibiting IC₅₀ values of 36 nM for CK2α and 16 nM for CK2α′ in the nanoBRET assay. With exclusive selectivity for both human CK2 isoforms, SGC-CK2-1 serves as a valuable tool for studying CK2-related signaling pathways and holds potential for research in neurodegenerative diseases.

SSTC3 is a potent activator of casein kinase 1α (CK1α), with a binding affinity (K_d) of 32 nM, and functions as an inhibitor of WNT/β-catenin signaling with an EC₅₀ of 30 nM. Unlike many conventional WNT pathway inhibitors, SSTC3 demonstrates minimal gastrointestinal toxicity, offering a promising therapeutic strategy for targeting WNT-driven cancers with improved safety profiles.

BTX-A51 (Casein Kinase Inhibitor A51) is a potent, orally bioavailable inhibitor of casein kinase 1α (CK1α). It effectively induces apoptosis in leukemia cells and demonstrates strong anti-leukemic activity in preclinical models, making it a promising therapeutic candidate for hematologic malignancies.

FPFT-2216 is a “molecular glue” degrader that facilitates the proteasomal degradation of multiple target proteins, including phosphodiesterase 6D (PDE6D), zinc finger transcription factors Ikaros (IKZF1) and Aiolos (IKZF3), as well as casein kinase 1α (CK1α). By promoting selective ubiquitination through E3 ligase recruitment, FPFT-2216 modulates key regulatory pathways and holds promise for research in oncology and inflammatory diseases.

xStAx-VHLL is a PROTAC degrader targeting β-catenin, promoting its ubiquitination and proteasomal degradation. It effectively inhibits the Wnt/β-catenin signaling pathway and suppresses proliferation of colon cancer cells, demonstrating anti-tumor activity.

CCT036477 is a selective inhibitor of the Wnt/β-catenin signaling pathway that effectively disrupts β-catenin-mediated transcription without affecting its overall levels. This compound demonstrates significant anti-proliferative effects on various cancer cell lines and impairs embryonic development. Additionally, CCT036477 downregulates the expression of key Wnt target genes, including PPARδ, Cyclin D1, TCF4, and ID2, making it a valuable tool for research in cancer biology and developmental studies.

IAG933 is a potent YAP-TEAD inhibitor that targets the YAP/TAZ-TEAD interaction, demonstrating significant anti-tumor effects by promoting apoptosis in cancer cells. With an IC50 value of 9 nM against Avi-human TEAD4217-434, IAG933 serves as a valuable tool for studies investigating the YAP signaling pathway and its role in oncogenesis. Its oral bioavailability further enhances its utility in in vivo research applications focused on cancer therapeutics.

VT3989 is a potent YAP/TAZ inhibitor, targeting the essential Hippo signaling pathway regulators. It demonstrates significant inhibitory activity against firefly luciferase, with an IC50 value of less than 0.1 μM. This compound is ideal for research applications focused on understanding the roles of YAP/TAZ in cancer biology and cellular signaling pathways.

GNE-7883 is a pan-TEAD inhibitor that disrupts the interaction between YAP/TAZ and TEAD transcription factors. This compound reduces chromatin accessibility at TEAD-binding sites and inhibits cell proliferation across various cell line models, demonstrating significant anti-tumor effects in vivo. Additionally, GNE-7883 addresses both intrinsic and acquired resistance to KRAS G12C inhibitors in multiple preclinical settings by targeting YAP/TAZ activation, making it a valuable tool for cancer research.

MSAB is a potent and selective Wnt/β-catenin signaling inhibitor. By binding to β-catenin, it promotes its degradation and effectively downregulates Wnt/β-catenin target genes. MSAB demonstrates significant anti-tumor activity, particularly in Wnt-dependent cancer cell lines, making it a valuable tool for cancer research and therapeutic development targeting aberrant Wnt signaling.

9-cis-Retinal is a natural retinoid that serves as a crucial signaling molecule in visual processes. It is produced from dietary 9-cis-β-carotene through enzymatic cleavage. This compound exhibits high-affinity binding to cellular retinol-binding proteins CRBP-I and CRBP-II, with dissociation constants of 8 nM and 5 nM, respectively. 9-cis-Retinal plays a significant role in promoting differentiation and maturation of rod photoreceptors in retinal organoid models, making it valuable for research in vision science and photoreceptor development.

GSA-10 is a potent agonist of the smooth (Smo) receptor, playing a crucial role in mediating Hedgehog (Hh) signaling pathways. This compound exhibits significant osteogenic activity and is valuable in regenerative medicine and research on cancer pathologies. Additionally, GSA-10 can be utilized in studies focused on adipogenesis and fat development, making it a versatile tool in biological research.

3289-8625 is a potent inhibitor of the PDZ domain of Dishevelled (Dvl) protein, exhibiting a Kd of 10.6 μM. This compound effectively inhibits Wnt signaling pathways and demonstrates a significant impact on prostate cancer PC-3 cell growth, with an IC50 of 12.5 μM. 3289-8625 is valuable for research involving embryonic development and cancer biology.

Neurodazine is a neurogenesis inducer that promotes the differentiation of pluripotent cells into neuronal lineages. This compound activates the Wnt and Shh signaling pathways, facilitating neural development and potentially improving neuroregeneration applications. Neurodazine is suitable for research in developmental biology, neuroscience, and regenerative medicine.

Aloisine A is a potent cyclin-dependent kinase (CDK) inhibitor, exhibiting IC50 values of 0.15 μM for CDK1/cyclin B, 0.12 μM for CDK2/cyclin A, 0.4 μM for CDK2/cyclin E, and 0.16 μM for CDK5/p35. In addition to its CDK inhibitory effects, Aloisine A also inhibits GSK-3α and GSK-3β with IC50 values of 0.5 μM and 1.5 μM, respectively. Notably, it enhances the activity of wild-type and mutant CFTR with submicromolar affinity through a cAMP-independent mechanism, making it a valuable tool for research related to cystic fibrosis and CFTR-related disorders.

EC23 is a retinoid analogue that acts as a retinoic acid receptor (RAR) agonist. This compound prompts neuronal differentiation, making it a valuable tool for studying neurodevelopmental processes and related disorders. Its stability enhances its suitability for various biological assays and research applications in the field of neurobiology.

NSC693868 is a selective inhibitor of cyclin-dependent kinases CDK1 and CDK5, demonstrating IC50 values of 600 nM and 400 nM, respectively. This compound also exhibits weaker inhibition of GSK3β with an IC50 of 1 µM and does not affect CDC25 activity. NSC693868 is employed in research to elucidate the functions of CDK1 and CDK5 within various cellular signaling pathways.

Gallocyanine chloride is a DKK1 inhibitor that targets the DKK1/LRP6 interaction, exhibiting an IC50 of 6.38 μM. This compound is relevant for research into Alzheimer's disease and related neurodegenerative tauopathies, as it activates the Wnt signaling pathway and promotes β-catenin accumulation. Additionally, Gallocyanine chloride demonstrates anti-metastatic, anti-inflammatory, and anti-fibrotic properties, and can serve as a fluorescent probe for the detection of superoxide anion radicals.

(E/Z)-BIO-acetoxime is a potent and selective inhibitor of GSK-3α/β, exhibiting an IC50 of 10 nM. This compound demonstrates exceptional selectivity with over 200-fold preference against CDK5/p25, CDK2/cyclin A, and CDK1/cyclin B, with IC50 values of 2.4, 4.3, and 63 μM, respectively. Its strong inhibitory activity makes it a valuable tool for research focused on signaling pathways involved in cell proliferation, differentiation, and apoptosis.

Nicotinamide is a form of vitamin B3 or niacin. Nicotinamide Hydrochloride inhibits SIRT2 activity (IC50: 2 μM). Nicotinamide also inhibits SIRT1. Nicotinamide increases cellular NAD+, ATP, ROS levels. Nicotinamide inhibits tumor growth and improves survival. Nicotinamide also has anti-HBV activity.

Nigericin is an antibiotic derived from Streptomyces hygroscopicus that act as a K+/H+ ionophore, promoting K+/H+ exchange across mitochondrial membranes. Nigericin is a NLRP3 activator. Nigericin shows promising anti-cancer activities through decreasing intracellular pH (pHi), and inactivation of Wnt/β-catenin signals. Nigericin induces pyroptosis through caspase 1/GSDMD in TNBC.

δ-Secretase inhibitor 11 is a potent and selective inhibitor targeting δ-secretase, displaying an IC50 of 0.7 μM. This compound effectively interacts with both the active and allosteric sites of δ-secretase, resulting in the attenuation of tau and amyloid precursor protein cleavage. Its oral bioavailability and blood-brain barrier penetration make it suitable for in vivo studies, particularly in transgenic mouse models. δ-Secretase inhibitor 11 is a valuable tool for Alzheimer's disease research, facilitating investigations into the mechanisms underlying synaptic dysfunction and cognitive impairments.

CK2-TN03 is an ATP-competitive inhibitor of casein kinase 2 (CK2), demonstrating an IC50 of 165 nM and a Ki of 20 nM. This compound effectively inhibits CK2-mediated activation of survivin and reduces phosphorylation levels of critical proteins such as BRD4/MYCN and AKT1. CK2-TN03 has shown significant anti-neuroblastoma effects by promoting mitotic catastrophe and apoptosis in cancer cells, making it a valuable tool for research focused on neuroblastoma.