MCP110 is an inhibitor of Ras/Raf-1 interaction. MCP110 blocks the interaction of Ras with Raf[1].
SOS1-IN-12 is a potent son of sevenless homolog 1 (SOS1) inhibitor with a Ki of 0.11 nM for SOS1 and an IC50 of 47 nM for pERK. SOS1-IN-13 can be used for researching anticancer[1].
kobe2602 is a novel and effective small-molecule compound inhibiting Ras–Raf interaction by SBDD; exhibits potent activity to competitively inhibit the binding of H-Ras·GTP to c-Raf-1 RBD with a Ki value of 149 ± 55 μM.IC50 value: 149 ± 55 uM (Ki) [1]Target: Ras-Raf These two compounds(Kobe0065 and Kobe2602), added to the culture medium at 2 and 20 μM, effectively reduced the amount of c-Raf-1 associated with H-Ras G12V in NIH 3T3 cells in a dose-dependent manner, indicating the inhibition of the cellular activity of Ras. A rough estimate of the IC50 value for the cellular Ras–Raf-binding inhibition was around 10 μM (Fig. 1B), which was not much different from the Ki values for the in vitro Ras–Raf-binding inhibition considering thequite low cellular concentration of Raf. A similar inhibitory effect was also observed with NIH 3T3 cells overexpressing K-Ras G12V. Both Kobe0065 and Kobe2602 at 20 μM efficiently inhibited the phosphorylation of MEK and ERK, downstream kinases of Raf in NIH 3T3 cells transiently expressingH-Ras G12V, although the effect was slightly weaker than that of2 μM sorafenib.
MRTX849 acid, a derivative of MRTX849, can be used in the synthesis of PROTAC LC-2 (HY-137516). LC-2 is a potent and first-in-class PROTAC capable of degrading endogenous KRAS G12C (DC50s between 0.25 and 0.76 μM)[1][2].
Fulzerasib is a potent KRAS inhibitor[1].
CCG-222740 is a potent and selective Rho/myocardin-related transcription factor (MRTF) pathway inhibitor[1]. CCG-222740 also is a potent inhibitor of alpha-smooth muscle actin protein expression. CCG-222740 effectively reduces fibrosis in skin and blocks melanoma metastasis[2].
Antineoplaston A10, a naturally occurring substance in human body, is a Ras inhibitor potentially for the treatment of glioma, lymphoma, astrocytoma and breast cancer[1].
ZG1077 is a covalent KRAS G12C inhibitor. ZG1077 can be used in the research of non-small cell lung cancer (NSCLC)[1].
KRAS inhibitor-8 is a potent KRAS G12C inhibitor, extracted from patent WO2017087528A1, compound C[1].
Spiclomazine hydrochloride (APY-606) is an antipsychotic and antitumor agent. Spiclomazine hydrochloride inhibits KRas. Spiclomazine hydrochloride induces cancer cell apoptosis[1][2].
NSC-658497 is an effective inhibitor of Ras-GEF, SOS1. NSC-658497 binds to SOS1, competitively suppresses SOS1-Ras interaction, and dose-dependently inhibits SOS1 GEF activity. NSC-658497 showed dose-dependent efficacy in inhibiting Ras, downstream signaling activities, and associated cell proliferation[1].
RTIL 13 is a potent inhibitor of dynamin GTPase, with an IC50 of 2.3 µM for dynamin I GTPase. RTIL 13 also targets pleckstrin homology lipid binding domain. RTIL 13 can inhibit receptor-mediated and synaptic vesicle endocytosis, with IC50s of 9.3 μM and 7.1 μM, respectively[1][2].
SOS1-IN-4 is a potent SOS1 inhibitor with an IC50 of 56 nM for KRAS-C12C/SOS1 interaction (WO2021228028 A1, example 65)[1].
BDP9066 is a potent and selective myotonic dystrophy-related Cdc42-binding kinases MRCK inhibitor with an IC50 of 64 nM for MRCKβ in SCC12 cells, Ki values of 0.0136 nM and 0.0233 nM for MRCKα/β in house determinations, respectively. BDP9066 has therapeutic effect on skin cancer by reducing substrate phosphorylation.
KRAS G12D inhibitor 8 is a potent inhibitor of KRAS G12D. The Ras family of proteins is an important intracellular signaling molecule that plays an important role in growth and development. KRAS G12D inhibitor 8 has the potential for the research of KRAS G12D-mediated cancer (extracted from patent WO2021107160A1, compound 2)[1].
Nexinhib20 is a specific Rab27a-JFC1 interaction inhibitor with a calculated IC50 of 2.6 μM. Nexinhib20 significantly inhibits superoxide anion production. Nexinhib20 efficiently decreases exocytosis of azurophilic granules in neutrophils stimulated with fMLP, GM-CSF or both. Nexinhib20 has a significant anti-inflammatory activity[1].
ZCL278 is a selective Cdc42 modulator that directly binds to Cdc42 and inhibits its functions with Kd of 11.4 μM for Cdc42-ZCL278 affinity in surface plasmon resonance (SPR) experiment.
KRAS G12D inhibitor 17 (example 8) is a quinazoline-linked (4R)-4-hydroxy-L-prolinamide compound, inducing degradation of G12D-mutation KRAS protein[1].
KRAS G12C inhibitor 17 is a potent KRAS G12C inhibitor extracted from patent WO2019110751A1, compound 82, has an IC50 of 5 nM[1].
KRAS inhibitor-14 (compound 3-22) is a potent KRAS G12C inhibitor with an IC50 of 0.249 µM. KRAS inhibitor-14 shows p-ERK inhibition activities with IC50s of 1.12, >33.3 µM in MIA PaCA-2, A549 cells, respectively. KRAS inhibitor-14 has the potential for the research of pancreatic, colorectal, and lung cancers[1].
EHop-016 is a novel potent and selective inhibitor of Rac GTPase; inhibits Rac1 activity in MDA-MB-435 cells with an IC50 of 1.1 uM.IC50 value: 1.1 uM (MDA-MB-435 cell) [1]Target: Rac1 inhibitorin vitro: The IC(50) of 1.1 μM for Rac inhibition by EHop-016 is ～100-fold lower than for NSC23766. EHop-016 is specific for Rac1 and Rac3 at concentrations of ≤5 μM. At higher concentrations, EHop-016 inhibits the close homolog Cdc42. In MDA-MB-435 cells that demonstrate high active levels of the Rac GEF Vav2, EHop-016 inhibits the association of Vav2 with a nucleotide-free Rac1(G15A), which has a high affinity for activated GEFs. EHop-016 also inhibits the Rac activity of MDA-MB-231 metastatic breast cancer cells and reduces Rac-directed lamellipodia formation in both cell lines. EHop-016 decreases Rac downstream effects of PAK1 (p21-activated kinase 1) activity and directed migration of metastatic cancer cells. Moreover, at effective concentrations (<5 μM), EHop-016 does not affect the viability of transformed mammary epithelial cells (MCF-10A) and reduces viability of MDA-MB-435 cells by only 20% [1]. At higher concentrations (10μM), EHop-016 inhibits the related Rho GTPase Cdc42, but not Rho, and also reduces cell viability. Moreover, EHop-016 inhibits the activation of the Rac downstream effector p21-activated kinase, extension of motile actin-based structures, and cell migration [2].in vivo: As quantified by UPLC MS/MS, EHop-016 was detectable in the plasma of nude mice at 17 to 23 ng/ml levels at 12 h following intraperitoneal (i.p.) administration of 10 to 25 mg/kg BW EHop-016. The EHop-016 mediated inhibition of angiogenesis In Vivo was confirmed by immunohistochemistry of excised tumors and by In Vitro tube formation assays of endothelial cells. Moreover, EHop-016 affected cell viability by down-regulating Akt and Jun kinase activities and c-Myc and Cyclin D expression, as well as increasing caspase 3/7 activities in metastatic cancer cells [3].
KRAS G12C inhibitor 45 (compound 78) is a potent KRAS G12C inhibitor[1].
K-Ras (G12C) inhibitor 9 is an allosteric inhibitor of the K-Ras (G12C)[1].
KRAS G12C inhibitor 23 is a KRAS G12C inhibitor. KRAS G12C inhibitor 23 inhibits H358 cells with an IC50 of 491 nM (WO2021218939A1, compound 1)[1].
PROTAC KRAS G12C degrader-2 (compound 432) is a modulator of K-Ras protein hydrolysis. PROTAC KRAS G12C degrader-2 is a bifunctional compound, which contain on one end a cereblon inhibitor of apoptosis proteins (IAP) and on the other end a moiety which binds KRAS[1].
Digeranyl bisphophonate is a potent geranylgeranylpyrophosphate (GGPP) synthase inhibitor, which inhibits geranylgeranylation of Rac1.
SAH-SOS1A is a KRas/son of sevenless 1 (SOS1) interaction inhibitor. SAH-SOS1A binds within nucleotide binding pocket of KRas (Kd values ranges from 106 - 176 nM for wild type KRas and KRas mutants). SAH-SOS1A inhibits nucleotide binding to KRas in a concentration dependent manner.
Oncrasin-1 is a potent and effective anticancer inhibitor that kills various human lung cancer cells with K-Ras mutations at low or submicromolar concentrations; also led to abnormal aggregationof PKCι in nucleus of sensitive cells but not in resistant cells.IC50 value: 1.0 μM(A549, K-ras 12H and p53 Wt) [1]Target: human lung cancer cells with K-Ras mutation; K-Ras/PKCiota pathway inhibitorin vitro: effectively kills various human lung cancer cells with K-Ras mutations at low or submicromolar concentrations. The cytotoxic effects correlated with apoptosis inductionas was evidenced by increase of apoptotic cells and activation of caspase-3 and caspase-8 upon the treatment of oncrasin-1 in sensitive cells.Treatment with oncrasin-1 also led to abnormal aggregationof PKCι in nucleus of sensitive cells but not in resistant cells. Furthermore, oncrasin-1 induced apoptosis was blocked by siRNA of K-Ras or PKCι suggesting that oncrasin-1 is targeted to a novel K-Ras/PKCι pathway [1]. oncrasin-1 treatment led to coaggregation of PKCiota and splicing factors into megaspliceosomes but had no obvious effects on the DNA repair molecule Rad51. Moreover, oncrasin-1 treatment suppressed the phosphorylation of the largest subunit of RNA polymerase II and the expression of intronless reporter genes in sensitive cells but not in resistant cells [2]. in vivo: The in vivo administration of oncrasin-1 suppressed the growth of K-ras mutant human lung tumor xenografts by >70% and prolonged the survival of nude mice bearing these tumors, without causing detectable toxicity [1].
LUNA18 is an orally active KRAS inhibitor with an IC50 of ＜2 nM against KRASG12D-SOS. LUNA18 can be used for the research of cancer[1].
KRAS inhibitor-15 (compound 3-19) is a potent KRAS G12C inhibitor with an IC50 of 0.954 µM. KRAS inhibitor-15 shows p-ERK inhibition activities with IC50s of 2.03, >33.3 µM in MIA PaCA-2, A549 cells, respectively. KRAS inhibitor-15 has the potential for the research of pancreatic, colorectal, and lung cancers[1].