Protein Tyrosine Kinases

AMG-458 is a potent inhibitor of c-Met with an IC50 value of 60nM and displays selectivity against VEGFR2.

XL647 is an orally bioavailable small-molecule RTK inhibitor that binds to and inhibits several tyrosine receptor kinases that play major roles in tumor cell proliferation and tumor vascularization, including EGFR, HER2, ERBB2, VEGFR and EphB4.

TG-101348 is an orally bioavailable, ATP-competitive and selective inhibitor of Janus-associated kinase 2 with potential antineoplastic activity.

GIP (1-39) (Gastric inhibitory peptide (1-39) (porcine)) is an insulinotropic peptide that stimulats insulin secretion from rat pancreatic islets. GIP (1-39) at 100 nM was able to significantly increase intracellular Ca2+ concentration ([Ca2+]i), and capable of enhancing exocytosis.

Insulin (human) is a polypeptide hormone that regulates the level of glucose.

GIP (3-42), human acts as a glucose-dependent insulinotropic polypeptide (GIP) receptor antagonist, moderating the insulin secreting and metabolic actions of GIP in vivo.

Gastric Inhibitory Peptide, porcine is a glucose-dependent insulinotropic polypeptide, is a 42 amino acid intestinal hormone with effects on fat and glucose metabolism.

VSPPLTLGQLLS is a small peptide FGFR3 inhibitor, peptide P3, inhibits FGFR3 phosphorylation. VSPPLTLGQLLS inhibits 9-cisRA-induced tracheal lymphangiogenesis and blocks lymphatic endothelial cell (LEC) proliferation, migration, and tubule formation.

[D-Ala2]-GIP (human) is a GIP receptor agonist. [D-Ala2]-GIP (human) improves glucose tolerance. [D-Ala2]-GIP (human) shows neuroprotective activity in MPTP-induced Parkinson's disease model. [D-Ala2]-GIP (human) also improves cognitive function and hippocampal synaptic plasticity in obese diabetic rats. [D-Ala2]-GIP (human) can be used for research of type 2 diabetes, Parkinson's disease, etc

DA-JC4 is a dual GLP-1/GIP receptor agonist and can be used for the research of neurological disease and insulin signaling pathways.

Insulin receptor (1142-1153), pTyr1150 is a biological active peptide. (Peptide used as insulin receptor tyrosine kinase substrate.)

Multi-kinase inhibitor 1 is a potent multi-kinase inhibitor. Multi-kinase inhibitor 1 has the potential for diseases or disorders associated with abnormal or deregulated tyrosine kinase activity, particularly diseases associated with the activity of PDGF-R, c-Kit and Bcr-abl.

SU-4312, also known as DMBI, is a potent and selective inhibitor of VEGFR and PDGFR tyrosine kinases (IC50 values are 0.8 and 19.4 μM respectively).

SU-4313 is a small-molecule modulator of protein tyrosine kinases (PTKs). It inhibits multiple receptor tyrosine kinases with reported IC₅₀ values of 14.5 μM (PDGFR), 18.8 μM (FLK-1/VEGFR2), 11 μM (EGFR), 16.9 μM (HER2 kinase), and 8.0 μM (IGF-1R).

Through its multi-kinase inhibitory profile, SU-4313 modulates tyrosine kinase–mediated signal transduction pathways involved in the regulation of cell proliferation and growth. It is therefore commonly used as a research tool for investigating aberrant receptor tyrosine kinase signaling and proliferation-associated pathways.

5'-Fluoroindirubinoxime (5'-FIO, compound 13), an Indirubin derivative, is a potent FLT3 inhibitor, with an IC50 of 15 nM.

JNJ-1013 is a selective degrader of IRAK1, demonstrating potent efficacy with IC50 values of 72 nM for IRAK1, 443 nM for IRAK4, and 1071 nM for VHL. This compound induces apoptosis and promotes the cleavage of PARP, signaling significant pro-apoptotic activity. Additionally, JNJ-1013 effectively reduces the expression of IRAK1, phosphorylated IKBα, and phosphorylated STAT3 (Tyr705), making it a valuable tool for research in inflammatory pathways and therapeutic interventions targeting IRAK1.

TL13-12 is a selective PROTAC degrader targeting anaplastic lymphoma kinase (ALK), exhibiting an IC50 of 0.69 nM for ALK inhibition. In addition to its primary action, TL13-12 induces degradation of several other kinases, including Aurora A (IC50 = 13.5 nM), FER (IC50 = 5.74 nM), PTK2 (IC50 = 18.4 nM), and RPS6KA1 (IC50 = 65 nM). This compound is designed through the conjugation of TAE684 and the Cereblon ligand derived from Pomalidomide, making it a valuable tool for studying kinase biology and developing targeted therapies.

Zomiradomide is an orally bioavailable PROTAC degrader targeting IRAK4, with a DC50 of 6 nM, which effectively inhibits the NF-κB signaling pathway. In addition to its suppression of IRAK4, Zomiradomide functions as a molecular glue, facilitating the degradation of Ikaros with a DC50 of 1 nM and consequently activating the type I IFN signaling pathway. This dual action positions Zomiradomide as a valuable tool in research focused on immune modulation and inflammatory responses.

PRO-6E is a PROTAC that targets Cereblon to induce degradation of the MET protein. It achieves up to 81.9% degradation of MET at 1 μM in MKN-45 cells, effectively inhibiting tumor growth both in vitro and in vivo. Additionally, PRO-6E promotes apoptosis and cell cycle arrest, making it a valuable tool for research on MET-related oncogenic processes.

KTX-951 is a selective IRAK4 degrader that employs a PROTAC mechanism to facilitate targeted degradation of IRAK4 and IMiD substrates, including Ikaros and Aiolos. With a Kd of 3.5 nM and DC50 values of 13 nM for IRAK4, Ikaros, and Aiolos, KTX-951 demonstrates potent biological activity. It also exhibits an IC50 of 35 nM against OCl-Ly10 CTG, indicating its potential use in antitumor research applications.

MS154 is a novel E3 ligase cereblon-recruited degrader specifically targeting epidermal growth factor receptor (EGFR). It has demonstrated potent degradation of the EGFR L858R mutant in cancer cell lines with Kd values of 1.8 nM and 3.8 nM for wild-type and mutant EGFR, respectively. This selective degradation mechanism highlights its potential as an anticancer agent, particularly in lung cancer treatment. MS154 operates through an E3 ligase-dependent pathway, representing a promising therapeutic strategy for treating EGFR-driven malignancies.

VEGFR-2-IN-39 is a potent inhibitor of the vascular endothelial growth factor receptor 2 (VEGFR-2), with an IC50 of 208.6 nM. This compound effectively inhibits the proliferation of EA.hy926 cells, a human umbilical vein endothelial cell line, in a concentration-dependent manner, exhibiting an IC50 of 38.65 µM. VEGFR-2-IN-39 has low toxicity, making it suitable for further research applications in angiogenesis and vascular biology.

Cucurbitacin IIa is a potent EGFR inhibitor with an IC50 of 1.455 nM, demonstrating effective modulation of the EGFR signaling pathway. This compound induces caspase-3-dependent apoptosis, downregulates survivin expression, and enhances autophagy, while disrupting the actin cytoskeleton and arresting the cell cycle at the G2/M phase. Additionally, Cucurbitacin IIa exhibits anti-inflammatory properties, making it a valuable tool for research into inflammation-related diseases, depression, and various cancers, including non-small cell lung cancer.

OD36 hydrochloride is a potent inhibitor of receptor-interacting protein kinase 2 (RIPK2) and an effective modulator of activin receptor-like kinase 2 (ALK2), exhibiting an IC50 of 5.3 nM against RIPK2. This macrocyclic compound demonstrates strong binding affinity for the ALK2 kinase ATP pocket, with a Kd of 37 nM. OD36 hydrochloride is suitable for research applications focused on signaling pathways involving RIPK2 and ALK2, relevant in studying various diseases, including inflammation and cancer.

AKN-028 is a potent inhibitor of FMS-like receptor tyrosine kinase 3 (FLT3), demonstrating an IC50 value of 6 nM and effectively inhibiting FLT3 autophosphorylation. This orally active compound elicits a dose-dependent cytotoxic effect, with a mean IC50 of 1 μM. AKN-028 promotes apoptosis through the activation of caspase 3, making it particularly relevant for research on acute myeloid leukemia (AML) and related hematological malignancies.

OD36 is a selective inhibitor of RIPK2 with an IC50 of 5.3 nM, demonstrating potent binding affinity to the ATP pocket of the ALK2 kinase, with a KD of 37 nM. This macrocyclic compound exhibits specific ALK2-directed activity, making it a valuable tool for investigating the roles of these kinases in various biological pathways. Research applications include the exploration of inflammatory signaling and potential therapeutic interventions in related diseases.

RIPK2-IN-1 is a selective inhibitor targeting RIPK2 and ALK2, with an IC50 of 51 nM and 5 nM, respectively. This compound demonstrates substantial efficacy in modulating RIPK2/NOD2 pathways, exhibiting an IC50 of 390 nM in cellular assays. RIPK2-IN-1 is suitable for research applications investigating pathways related to inflammation and immune response mechanisms.

ALKBH5-IN-5 is a selective inhibitor of ALKBH5 with an IC50 of 0.62 μM and a Kd of 804 nM. This compound disrupts the interaction between ALKBH5 and its substrates, m6A-RNA and 6mA-DNA, leading to enhanced differentiation and apoptosis in cancer cells, as well as G2-M phase arrest. Notably, ALKBH5-IN-5 reduces the protein levels of TACC3 and MYC while increasing cleaved caspase-3 levels, demonstrating significant antiproliferative effects. Furthermore, it exhibits antitumor activity in xenograft mouse models and is relevant for research into acute myeloid leukemia.

AKN-028 TFA is a potent and orally active inhibitor of FMS-like receptor tyrosine kinase 3 (FLT3), exhibiting an IC50 value of 6 nM. This compound effectively inhibits FLT3 autophosphorylation and elicits a dose-dependent cytotoxic response with a mean IC50 of 1 μM. Additionally, AKN-028 TFA induces apoptosis through the activation of caspase 3. It is a valuable tool for research in acute myeloid leukemia (AML).

CIDD-8633 is a potent inhibitor of DDR2, exhibiting an IC50 value of 6.105 μM. This compound effectively inhibits cell migration, induces cell cycle arrest, and promotes apoptosis, leading to significant suppression of pancreatic ductal adenocarcinoma (PDAC) tumor growth. CIDD-8633 is valuable for research applications focused on understanding and combating pancreatic cancer, particularly in the context of PDAC.

ALK-IN-26 is a selective inhibitor of the anaplastic lymphoma kinase (ALK) with an IC50 value of 7.0 μM for ALK tyrosine kinase. This compound exhibits favorable pharmacokinetic properties and demonstrates permeability across the blood-brain barrier. ALK-IN-26 has been shown to induce apoptosis, autophagy, and necrosis, making it a valuable tool in the study of glioblastoma and related malignancies.

LC-MB12 is an orally active PROTAC compound that targets FGFR2 degradation, with a DC₅₀ of 11.8 nM. It consists of the FGFR2 inhibitor BGJ398, a PROTAC linker, and a cereblon (CRBN) ligand. LC-MB12 effectively inhibits FGFR2 signaling in gastric cancer cells and exhibits antitumor activity.

ATWLPPR peptide is a biologically active heptapeptide and a specific antagonist of VEGFR2 (KDR/Flk-1). It binds to VEGFR2, completely blocking VEGF binding and thereby inhibiting VEGF-induced angiogenesis in vivo. ATWLPPR selectively inhibits human endothelial cell proliferation in vitro and fully suppresses VEGF-mediated angiogenesis in vivo.

Bleximenib (JNJ-75276617) is an orally active and highly selective menin–KMT2A (MLL) interaction inhibitor, with IC50 values of 0.1 nM in humans, 0.045 nM in mice, and ≤0.066 nM in dogs. It effectively inhibits the proliferation of tumor cells and induces apoptosis and differentiation, particularly in malignancies driven by KMT2A rearrangements. Bleximenib is a promising therapeutic candidate for the study and treatment of leukemia and other menin-dependent cancers.

Zongertinib (BI 1810631) is a potent and selective tyrosine kinase inhibitor targeting HER2 and EGFR, with IC50 values of 13 nM and 579 nM, respectively. It exhibits significant antitumor activity and is being investigated for the treatment of multiple solid tumors, particularly those driven by HER2 alterations.

Bleximenib (JNJ-75276617) oxalate is an orally active and highly selective inhibitor of the menin–KMT2A (MLL) interaction, with IC50 values of 0.1 nM in humans, 0.045 nM in mice, and ≤0.066 nM in dogs. It effectively inhibits tumor cell proliferation and induces apoptosis and differentiation, particularly in cancers driven by KMT2A rearrangements. Bleximenib oxalate is a promising candidate for research in leukemia and other menin–KMT2A-dependent malignancies.

6-Demethoxytangeretin is a flavonoid compound isolated from *Citrus reticulata* with demonstrated anti-inflammatory and anti-allergic properties. It inhibits IL-6 production and the expression of related genes in human mast cells by modulating the ALK and MAPK signaling pathways. Additionally, 6-Demethoxytangeretin enhances CRE-mediated transcription in hippocampal neurons, indicating potential neuroregulatory effects.

Larixol is an fMLP inhibitor that also suppresses key signaling pathways involved in immune regulation, including Src kinase, ERK1/2, p38, and AKT phosphorylation. It disrupts the interaction between the βγ subunit of the fMLP receptor Gi protein and downstream effectors, thereby inhibiting fMLP-induced respiratory burst. Larixol effectively inhibits fMLP (0.1 μM)-induced superoxide anion production (IC50: 1.98 μM), cathepsin G release (IC50: 2.76 μM), and neutrophil chemotaxis. It mitigates neutrophil hyperactivation and helps reduce inflammation and tissue damage. Additionally, Larixol derivatives have shown inhibitory activity against TRPC6 functional mutants associated with focal segmental glomerulosclerosis (FSGS).

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.

Flonoltinib is a potent and orally active dual JAK2/FLT3 inhibitor with IC50 values of 0.7 nM for JAK2, 4 nM for FLT3, 26 nM for JAK1, and 39 nM for JAK3. It exhibits strong anti-cancer activity and is a promising candidate for the treatment of hematologic malignancies and other JAK/FLT3-driven cancers.

Iruplinalkib (WX-0593) is an orally active and selective ALK/ROS1 inhibitor that effectively blocks tyrosine autophosphorylation of ALK, mutant ALK, and EGFR, with IC50 values ranging from 5.38 to 16.74 nM. Additionally, it inhibits the transport activity of MATE1, MATE2K, P-gp, and BCRP. Iruplinalkib is under investigation for the treatment of non-small cell lung cancer (NSCLC).

Methylnissolin (Astrapterocarpan), a natural compound isolated from *Astragalus membranaceus*, inhibits PDGF-BB-induced vascular smooth muscle cell proliferation with an IC50 of 10 μM. It exerts its effects by suppressing PDGF-BB-induced phosphorylation of ERK1/2, thereby blocking activation of the ERK1/2 MAP kinase signaling cascade.

JG26 is a potent ADAM inhibitor with IC50 values of 12 nM for ADAM8, 1.9 nM for ADAM17, and 150 nM for ADAM10. It also inhibits MMP-12 with an IC50 of 9.4 nM. JG26 suppresses AngII-induced EGFR transactivation and ERK activation, upregulates ACE2 expression, inhibits CD23 shedding, and reduces SARS-CoV-2 infection. Additionally, JG26 demonstrates anti-metastatic effects in colorectal cancer and holds research potential in Hodgkin lymphoma and vascular diseases.

Gambogic amide is a potent and selective TrkA agonist that induces tyrosine phosphorylation of TrkA and activates downstream signaling pathways, including Akt and MAPK. It specifically binds to the cytoplasmic juxtamembrane domain of TrkA, promoting receptor dimerization and activation. Gambogic amide exhibits neuroprotective effects by preventing glutamate-induced neuronal cell death and demonstrates improved efficacy in a transient middle cerebral artery occlusion (MCAO) model of stroke, supporting its potential use in research on neurodegenerative diseases and stroke.

Lasmotinib (PHI-101) is a dual inhibitor of FLT3 and CHK2 with potent activity against FLT3 single activating mutations (ITD or TKD), as well as double (ITD/D835Y or ITD/F691L) and triple (ITD/D835Y/F691L) resistance mutations. It synergizes with Venetoclax or Azacytidine to enhance anti-leukemic effects and also demonstrates anticancer activity in ovarian and breast cancer models.

HIOC is a potent and selective activator of the TrkB (tropomyosin receptor kinase B) receptor, capable of crossing both the blood-brain and blood-retinal barriers. It activates the TrkB/ERK signaling pathway, reduces neuronal apoptosis, and has been shown to attenuate early brain injury following subarachnoid hemorrhage (SAH). Additionally, HIOC exhibits neuroprotective effects in animal models of light-induced retinal degeneration.

Sulforaphene, a natural compound isolated from radish seeds, exhibits an ED₅₀ of approximately 2 × 10⁻⁴ M against velvetleaf seedlings. It promotes apoptosis and inhibits migration in cancer cells by suppressing signaling pathways including EGFR, phosphorylated ERK1/2 (p-ERK1/2), and NF-κB.

Avitinib (Abivertinib) maleate is a third-generation, irreversible, and orally active selective EGFR inhibitor with IC50 values of 0.18 nM for both EGFR^L858R and EGFR^T790M, and 7.68 nM for wild-type EGFR. In addition to its EGFR-targeting activity, Avitinib maleate also inhibits BTK phosphorylation and induces apoptosis in mantle cell lymphoma models, demonstrating broad-spectrum anticancer efficacy.

JND3229 is a reversible EGFR C797S inhibitor with IC50 values of 5.8 nM for EGFR^L858R/T790M/C797S, 6.8 nM for EGFR^WT, and 30.5 nM for EGFR^L858R/T790M. It exhibits potent antiproliferative activity and effectively suppresses tumor growth in vivo, making it a valuable tool for cancer research, particularly in the context of non-small cell lung carcinoma.

Silevertinib (BDTX-1535, EGFR-IN-76) is an orally bioavailable, blood-brain barrier-permeable, and selective EGFR inhibitor with demonstrated antitumor activity. It has shown efficacy in preclinical models of non-small cell lung cancer (NSCLC), glioblastoma patient-derived tumors, and intracranial tumor models.