URB597 is a potent, orally bioavailable FAAH inhibitor with IC50 of 4.6 nM, with no activity on other cannabinoid-related targets.IC50 value: 4.6 nM [1]Target: FAAH in vitro: URB597 binds in the hydrophobic pocket and catalytic core of FAAH that connects the active site residues to the membrane surface of FAAH [1]. URB597 reduces the expression of the LPS-induced enzymes cyclo-oxygenase 2 (COX-2) and inducible nitric oxide synthase (iNOS; NOS2) in primary rat microglial cell, with a concomitant reduction in the release of the inflammatory mediators prostaglandin E2 (PGE2) and (NO) nitric oxide [2]. in vivo: URB597 inhibits [3H]anandamide hydrolysis in rat brain membranes with a parallel increase in brain anandamide, OEA, and PEA content by inhibition of FAAH. URB597 enhances the hypothermia effect induced by ethanolamide by inhibiting FAAH [3]. When delivered intraperitonealy (0.3 mg/kg) URB597 reduces allodynia and hyperalgesia through cannabinoid CB1 and CB2 receptor-mediated analgesia in rats with inflammatory pain [4].
Pazopanib Hydrochloride is a novel multi-target inhibitor of VEGFR1, VEGFR2, VEGFR3, PDGFRβ, c-Kit, FGFR1, and c-Fms with an IC50 of 10, 30, 47, 84, 74, 140 and 146 nM, respectively.
Lycorine (hydrochloride) is VE-cadherin inhibitor,and has IC50 of 1.2μM in Hey1B cell.IC50: 1.2μM (Hey1B cell)[2]In vitro:Lycorine (hydrochloride) executed an anti-melanoma vasculogenic effect by inhibiting VE-cadherin gene expression in C8161 cells and caused a decrease in cell surface exposure of VE-cadherin protein. Consistently, LH significantly suppressed VE-cadherin gene promoter activity. [1]Lycorine (hydrochloride) effectively inhibited mitotic proliferation of Hey1B cells (half maximal inhibitory concentration = 1.2 μM) with very low toxicity, resulting in cell cycle arrest at the G2/M transition through enhanced expression of the cell cycle inhibitor p21 and marked down-regulation of cyclin D3 expression. Moreover, LH suppressed both the formation of capillary-like tubes by Hey1B cells cultured in vitro.[2]In vivo: Lycorine effectively suppressed C8161 cell-dominant tumor formation and generation of tumor blood vessels in vivo with low toxicity.[1]Lycorine (hydrochloride) suppressed the formation of the ovarian cancer cell-dominant neovascularization in vivo when administered to Hey1B-xenotransplanted mice, suggest that LH selectively inhibits ovarian cancer cell proliferation and neovascularization and is a potential drug candidate for anti-ovarian cancer therapy.[2]
Flavopiridol Hydrochloride is a broad inhibitor of CDK, competing with ATP to inhibit CDKs including CDK1, CDK2, CDK4 with IC50s of 30, 170, 100 nM, respectively.
FAK-IN-5 (Compound 8l) is a FAK signaling inhibitor. FAK-IN-5 induces cell apoptosis and autophagy[1].
EMD 1214063 is a potent and selective c-Met inhibitor with IC50 of 4 nM, >200-fold selective for c-Met than IRAK4, TrkA, Axl, IRAK1, and Mer. IC50 Value: 4 nM [1]Target: c-Metin vitro: EMD 1214063 inhibits HGF-induced c-Met phosphorylation in A549 cells with IC50 of 6 nM. Treatment with EMD 1214063 induces a marked reduction of c-Met–constitutive phosphorylation in EBC-1 cells with IC50 of 9 nM. EMD 1214063 effectively blocka phosphorylation of the major downstream effectors of the c-Met enzyme, such as Grb2, Gab1, Sos, PLCγ, and phosphoinositide 3-kinase, in EBC-1, MKN-45, and Hs746T cells in the range of 1 to 10 nM. EMD 1214063 considerably inhibits the viability of MKN-45 cells with IC50 of less than 1 nM. Treatment with EMD 1214063 (as low as 0.1 nM) inhibits HGF-induced NCI-H441 cell migration, whereas concentrations of 100 nM to 1 μM almost completely prevents it.in vivo: EMD 1214063 treatment, at doses of 10 mg/kg or more, results in more than 90% inhibition of c-Met phosphorylation in Hs746T xenograft tumor for a period of at least 72 hours. EMD 1214063 induces more than 50% reduction of cyclin D1 expression, which persists after 96 hours upon treatment with doses of 100 mg/kg. A transient induction of p27 and cleaved caspase-3 are also observed upon treatment with EMD 1214063. EMD 1214063 (15 mg/kg, daily) treatment induces complete regression of gastric carcinoma xenografts Hs746T, in which c-Met is amplified, overexpressed, and activated in a ligand-independent fashion.
Irinotecan hydrochloride trihydrate is a water soluble topoisomerase I inhibitor with antitumor activity.
MMRi62, a Ferroptosis inducer targeting MDM2-MDM4 (negative regulators of tumor suppressor p53). MMRi62 shows a P53-independent pro-apoptotic activity against pancreatic ductal adenocarcinoma (PDAC) cells and induce Autophagy. MMRi62 inducesFerroptosis, resulting in a increase of reactive oxygen and lysosomal degradation of ferritin heavy chain (FTH1). MMRi62 also leads to proteasomal degradation of mutant p53, also inhibits orthotopic xenograft PDAC mouse model in vivo with high frequency mutation characteristics of KRAS and TP53.12[1][2].
Vemurafenib-d5 (PLX4032-d5) is the deuterium labeled Vemurafenib. Vemurafenib (PLX4032) is a first-in-class, selective, potent inhibitor of B-RAF kinase, with IC50s of 31 and 48 nM for RAFV600E and c-RAF-1, respectively[1][4]. Vemurafenib induces cell autophagy[5].
Enzalutamide D3 is a deuterium labeled Enzalutamide (MDV3100). Enzalutamide is an androgen receptor (AR) antagonist with an IC50 of 36 nM in LNCaP prostate cells[1].
Erythromycin, an oral macrolide antibiotic produced by Streptomyces erythreus, reversibly binds to the 50S ribosome of bacteria, and inhibits protein synthesis.Target: AntibacterialErythromycin is a macrolide antibiotic that has an antimicrobial spectrum similar to or slightly wider than that of penicillin, and is often prescribed for people who have an allergy to penicillins. For respiratory tract infections, it has better coverage of atypical organisms, including Mycoplasma and legionellosis. It was first marketed by Eli Lilly and Company, and it is today commonly known as EES (erythromycin ethylsuccinate, an ester prodrug that is commonly administered). It is also occasionally used as a prokinetic agent.Erythromycin estolate has been associated with reversible hepatotoxicity in pregnant women in the form of elevated serum glutamic-oxaloacetic transaminase and is not recommended during pregnancy. Some evidence suggests similar hepatotoxicity in other populations. Erythromycin displays bacteriostatic activity or inhibits growth of bacteria, especially at higher concentrations, but the mechanism is not fully understood. By binding to the 50s subunit of the bacterial 70s rRNA complex, protein synthesis and subsequent structure and function processes critical for life or replication are inhibited. Erythromycin interferes with aminoacyl translocation, preventing the transfer of the tRNA bound at the A site of the rRNA complex to the P site of the rRNA complex. Without this translocation, the A site remains occupied and, thus, the addition of an incoming tRNA and its attached amino acid to the nascent polypeptide chain is inhibited. This interferes with the production of functionally useful proteins, which is the basis of this antimicrobial action.
Azithromycin-d3 (CP 62993-d3) is the deuterium labeled Azithromycin. Azithromycin (CP-62993) is a macrolide antibiotic useful for the treatment of a number of bacterial infections[1][2].
FK866 is an effective inhibitor of nicotinamide phosphoribosyltransferase (NMPRTase) with an IC50 of 0.09 nM.
Alginic acid is a natural polysaccharide, which has been widely concerned and applied due to its excellent water solubility, film formation, biodegradability and biocompatibility. Alginic acid induces oxidative stress-mediated hormone secretion disorder, apoptosis and autophagy in mouse granulosa cells and ovaries. Alginic acid has an inhibitory effect on histamine release. Anti-anaphylactic and anti-inflammatory properties[1][2][3].
Pazopanib-13C,d3 (hydrochloride) is the deuterium and 13C labeled Pazopanib hydrochloride[1]. Pazopanib Hydrochloride (GW786034 Hydrochloride) is a novel multi-target inhibitor of VEGFR1, VEGFR2, VEGFR3, PDGFRβ, c-Kit, FGFR1, and c-Fms with an IC50 of 10, 30, 47, 84, 74, 140 and 146 nM, respectively[2][3].
Stavudine is a nucleoside analog that inhibits reverse transcriptase and has in vitro activity against HIV.Target: HIV RT; NRTIsStavudine is a dideoxynucleoside analog that inhibits reverse transcriptase and has in vitro activity against HIV. Stavudine is an analog of thymidine. It is phosphorylated by cellular kinases into active triphosphate. Stavudine triphosphate inhibits the HIV reverse transcriptase by competing with natural substrate, thymidine triphosphate. It also causes termination of DNA synthesis by incorporating into it [1]. Mice were treated for 2 weeks with stavudine d4T (500 mg/kg/day), L-carnitine (200 mg/kg/day) or both drugs concomitantly. Body fatness was assessed by dual energy X-ray absorptiometry, and investigations were performed in plasma, liver, muscle and WAT. D4T reduced the gain of body adiposity, WAT leptin, whole body FAO and plasma ketone bodies, and increased liver triglycerides and plasma aminotransferases with mild ultrastructural abnormalities in hepatocytes [2].Clinical indications: HIV-1 infection FDA Approved Date: June 24, 1994 Toxicity: peripheral neuropathy; lipodystrophy
Zoledronic acid monohydrate is a third-generation, nitrogen-containing bisphosphonate, inhibits osteoclast-mediated bone resorption, and also has antitumor activity.
Nitazoxanide is a synthetic nitrothiazolyl-salicylamide derivative and an antiprotozoal agent. (IC50 for canine influenza virus ranges from 0.17 to 0.21 μM).Target: OthersNitazoxanide is a synthetic nitrothiazolyl-salicylamide derivative and an antiprotozoal agent. In vitro studies demonstrated much broader activity. Dr. Rossignol co-founded Romark Laboratories, with the goal of bringing nitazoxanide to market as an anti-parasitic drug. Initial studies in the USA were conducted in collaboration with Unimed Pharmaceuticals, Inc. (Marietta, GA) and focused on development of the drug for treatment of cryptosporidiosis in AIDS.The anti-protozoal activity of nitazoxanide is believed to be due to interference with the pyruvate:ferredoxin oxidoreductase (PFOR) enzyme dependent electron transfer reaction which is essential to anaerobic energy metabolism. It has also been shown to have activity against influenza A virus in vitro. The mechanism appears to be by selectively blocking the maturation of the viral hemagglutinin at a stage preceding resistance to endoglycosidase H digestion. This impairs hemagglutinin intracellular trafficking and insertion of the protein into the host plasma membrane.
GNE-9605 is a highly potent, selective, and brain-penetrant LRRK2 inhibitor with IC50 of 19 nM.IC50 value:Target: LRRK2GNE-9605 retained excellent predicted human metabolic stability when assayed in human liver microsomes and hepatocytes. Inaddition, no reversible or time-dependent inhibition of any of the major CYP isoforms was observed. The demonstrated metabolic stability, brain penetration across multiple species, and selectivity of these inhibitors support their use in preclinical efficacy and safety studies.
Regorafenib (BAY 73-4506) is a multi-targeted receptor tyrosine kinase inhibitor with IC50s of 13/4.2/46, 22, 7, 1.5 and 2.5 nM for VEGFR1/2/3, PDGFRβ, Kit, RET and Raf-1, respectively.
YM-155 hydrochloride is a novel survivin suppressant with an IC50 of 0.54 nM for the inhibition of survivin promoter activity.
Fenofibrate-d4 is the deuterium labeled Fenofibrate[1]. Fenofibrate is a selective PPARα agonist with an EC50 of 30 μM. Fenofibrate also inhibits human cytochrome P450 isoforms, with IC50s of 0.2, 0.7, 9.7, 4.8 and 142.1 μM for CYP2C19, CYP2B6, CYP2C9, CYP2C8, and CYP3A4, respectively[2][3].
Novobiocin Sodium is an antibiotic compound derived from Streptomyces niveus.Target: AntibacterialNovobiocin, also known as albamycin or cathomycin, is an aminocoumarin antibiotic that is produced by the actinomycete Streptomyces niveus, which has recently been identified as a subjective synonym for S. spheroides a member of the order Actinobacteria . Other aminocoumarin antibiotics include clorobiocin and coumermycin A1. The molecular basis of action of novobiocin, and other related drugs clorobiocin and coumermycin A1 has been examined. Aminocoumarins are very potent inhibitors of bacterial DNA gyrase and work by targeting the GyrB subunit of the enzyme involved in energy transduction. Novobiocin as well as the other aminocoumarin antibiotics act as competitive inhibitors of the ATPase reaction catalysed by GyrB. The potency of novobiocin is considerably higher than that of the fluoroquinolones that also target DNA gyrase, but at a different site on the enzyme. The GyrA subunit is involved in the DNA nicking and ligation activity [1-4].
Cucurbitacin E is a natural compound which from the climbing stem of Cucumic melo L. Cucurbitacin E significantly suppresses the activity of the cyclin B1/CDC2 complex.
GNE-7915 is a potent, selective and brain-penetrant inhibitor of LRRK2 with an IC50 of 9 nM.
Carbamazepine-D10 (CBZ-D10) is the deuterium labeled Carbamazepine. Carbamazepine (CBZ), a sodium channel blocker, is an anticonvulsant agent[1][2].
Magnolol, a natural lignan isolated from the stem bark of Magnolia officinalis, is a dual agonist of both RXRα and PPARγ, with EC50 values of 10.4 µM and 17.7 µM, respectively.
BOLD-100 is a ruthenium-based anticancer agent. BOLD-100 also is an inhibitor of stress-induced GRP78 upregulation, disrupting endoplasmic reticulum (ER) homeostasis and inducing ER stress and unfolded protein response (UPR). BOLD-100 interferes with the complex interplay between ER-stress response, lysosome dynamics, and autophagy execution[1].
Taxifolin exhibits important anti-tyrosinase activity. Taxifolin exhibits significant inhibitory activity against collagenase with an IC50 value of 193.3 μM.
GSK2578215A is a potent and highly selective LRRK2 inhibitor; exhibits IC50s of around 10 nM against both wild-type LRRK2 and the G2019S mutant.IC50 value: ~10 nM(wt-LRRK2; LRRK2 G2019S) [1]Target: LRRK2 inhibitorGSK2578215A exhibits exceptionally high selectivity for LRRK2 across the kinome, substantially inhibits Ser910 and Ser935 phosphorylation of both wild-type LRRK2 and G2019S mutant at a concentration of 0.3–1.0 μM in cells and in mouse spleen and kidney, but not in brain, following intraperitoneal injection of 100 mg/kg [1].