Enzyme Modulators

<p>MET tyrosine kinase inhibitor; anti-proliferative; pro-apoptotic</p>

<p>Omeprazole is a proton pump inhibitor (PPI) that inhibits the production of gastric acid in the stomach. This is due to Omeprazole binding through a stable disulphide bond to the H+/K+ ATPase enzyme found on parietal cells, and preventing hydrogen ion transport. Consequently, gastric acid secretion is supressed. As a PPI, Omerprazole can be used to treat disorders where gastric acid is over-secreted. Examples of these disorders are gastroesophageal reflux disease (GERD) and peptic ulcer disease.</p>

<p>Rivastigmine is a cholinergic agent that is used in the treatment of dementia in Parkinson’s and Alzheimer’s disease. This drug is a carbamate derivative that binds to and inactivates cholinesterase such as acetylcholinesterase and butyrylcholinesterase. This leads to an increase concentration of acetylcholine at cholinergic synapse.</p>

<p>An irreversible GSK-3β inhibitor that reduces phosphorylation of tau proteins, protects from neuronal loss and has cognitive and behavioural benefits in murine models. Studied for its potential as a therapeutic agent in Alzheimer’s disease and other neurodegenerative diseases. Tideglusib was also shown to inhibit the main protease Mpro from the SARS-CoV-2 virus with IC50 of 1.55 μM.</p>

<p>Inhibitor of chymotrypsin</p>

<p>A selective and potent inhibitor of phosphodiesterase 2 (PDE2). Raises cAMP and cGMP levels in neurons, improves social recognition and object memory in murine animals. Reverses anxiolytic effects induced by oxidative stress in mice by blocking cGMP-PKG signaling.</p>

<p>Inhibitor of immunophilin FKBP12 and mTOR signalling with immunosuppressant activity. Zotarolimus inhibits proliferation of endothelial cells and smooth muscle cells and is employed in vascular interventional therapies.</p>

<p>Rebamipide is a gastroprotective agent that is used to treat various gastrointestinal disorders such as gastric ulcers and GERD. This drug’s mechanism of action is not fully understood however, it is thought to exert its effects by promoting the secretion of protective mucus in the stomach and intestine, which helps to create a barrier against stomach acid and other irritants. Additionally, it has antioxidant and anti-inflammatory properties that can help reduce tissue damage.</p>

<p>Inhibits isocitrate dehydrogenase 1 (IDH-1) harbouring a gain of function mutation at R132, which causes impaired cellular differentiation via epigenetic modulation. By inhibiting mutant IDH1, synthesis of oncometabolite 2-hydroxyglutarate is reduced. This compound therefore has therapeutic potential in solid and haematological malignancies, such as acute myeloid leukemia (AML).</p>

<p>Inhibitor of FLT3 and AXL tyrosine kinases</p>

<p>Lovastatin is an HMG-CoA reductase inhibitor that is used to lower LDL cholesterol levels and to aid in the management of cardiovascular diseases. Animal studies have demonstrated that this drug has vasculoprotective properties.</p>

<p>Antirheumatic; immunosuppressant; neuroprotective; neuroregenerative</p>

<p>A specific inhibitor of Bone Morphogenetic Protein (BMP) type 1 receptors ALK2 and ALK3 (IC50  &lt; 0.5 µM). Dorsomorphin analog that exclusively targets the BMP but not VEGF signaling. It is able to inhibit the BMP-induced Smad1/5/8 activation but not the p38/MAP kinase signaling or Activin A-induced Smad2 activation.</p>

<p>Carmofur is an antineoplastic agent that is used to treat various cancers such as breast and colorectal cancer. This drug is a derivative of fluorouracil. Carmofur is an inhibitor of the human acid ceramidase, a lysosomal amidase involved in the development of cancer cells.</p>

<p>Sorafenib is a drug that belongs to the class of multikinase inhibitors. It inhibits a number of kinases, including the Mcl-1 protein, which is involved in apoptosis along with blocking picolinic acid (PA), an endogenous metabolite involved in apoptosis signal transduction. Sorafenib also binds to epidermal growth factor receptor (EGFR) on the surface of cancer cells, inhibiting the production of proteins that are required for angiogenesis, thus blocking the formation of new blood vessels. Sorafenib may also inhibit P-glycoprotein (Pgp) activity. Overall, these cytotoxic effects give Sorafenib anti-tumor properties, inhibiting angiogenesis and cellular transformation, which are the two main processes of tumor growth and metastasis. Sorafenib tosylate has been shown to be effective against a range of solid tumors such as breast, prostate and lung cancers and is also used for the treatment of metastatic colorectal cancer and renal cell carcinoma. A combination therapy group found that sorafenib was more effective when used with interferon alfa-2b for the treatment of advanced renal cell carcinoma. Sorafenib also has the potential for drug interactions with other drugs that are metabolized by cytochrome P450 enzymes.</p>

<p>Inhibitor of pan-class I PI3K family of lipid kinases; antineoplastic</p>

<p>Inhibits interaction between small GTPase Rab27a and its effector JFC1 (synaptotagmin-like protein1, Slp1). These proteins regulate neutrophil exocytosis, decrease neutrophil infiltration in liver and kidneys and reduce extracellular ROS production by NAPDH oxidase. Thus, nexinhibib20 suppresses systemic inflammation.</p>

<p>Selective inhibitor of the platelet derived growth factor receptor PDGFRβ with IC50 value of 4.2 nM. JNJ 10198409 inhibits the PDGFRβ kinase activity and its downstream signalling leading to anti-proliferative and anti-angiogenic effects, which were confirmed in various tumoral cell lines.</p>

<p>Inhibitor of stearoyl-CoA desaturase SCD1 with IC50 of 6.3 nM, as measured in the SCD1-expressing human microsomes.  A 939572 exhibited anticancer activity as it reduced cell proliferation and triggered cell killing in human non-small cell lung carcinoma cells. A 939572 inhibited tumour growth in an in vivo model for gastric carcinoma and reduced the oleic acid:stearic acid ratio in mouse liver and plasma.</p>

<p>Inhibits mTORC1 and mTORC2 serine/threonine kinases</p>

<p>5-Fluoro-1-(tetrahydro-2-furyl)uracil is a chemotherapeutic agent, which is a synthetic derivative of uracil. This compound is developed from modified nucleosides with the aim of enhancing antitumor efficacy. Its mechanism of action involves the inhibition of thymidylate synthase, leading to a disruption in DNA synthesis. By integrating into RNA and DNA, it ultimately impedes tumor cell proliferation due to RNA processing interference and DNA damage.</p>

<p>Wee1 inhibitor with an IC50 of 5.2 nM</p>

<p>Inhibits non-receptor tyrosine kinase BTK; antineoplastic</p>

<p>Potent and selective inhibitor of histone deacetylase 6 (HDAC6) with IC50 of 2.4 nM. Its anti-inflammatory activity was examined in a mouse model for acute colitis. The compound protected from intestinal inflammation by prevention of infiltration of CD19+ B-cells into the lamina propria of colonic epithelium and attenuated neutrophil activation. Its broad anti-inflammatory response involved decrease in 24 inflammatory chemokines and cytokines. Also, it is a potent inhibitor of cell proliferation in pancreatic cancer cell lines.</p>

<p>Hydroxychloroquine is a drug that is used to treat multiple types of autoimmune diseases, including rheumatoid arthritis, systemic lupus erythematosus and discoid lupus. It is a prodrug, which is activated in the liver to hydroxychloroquine. It inhibits the production of inflammatory cytokines and nitric oxide by binding to the toll-like receptor 4 (TLR4) and inhibiting signaling pathways downstream of TLR4 activation. Additionally, Hydroxychloroquine is used to prevent and treat malaria caused by parasitic protozoan from the Plasmodium genus. Furthermore, recent studies revealed that hydroxychloroquine has beneficial effects on COVID-19 patients, as the current evidence shows that hydroxychloroquine inhibits SARS CoV-2 entry in host cells by interfering with endocytosis and affecting the glycoprofile on the spike glycoprotein.</p>

<p>Autophagy activator that acts through targeting the ATP6V1A subunit of vATPase</p>

<p>Cobicistat is an inhibitor of human cytochrome P450 3A enzymes (CYP) with no antiviral activity. Cobicistat is used in the treatment of HIV-1 infection, as an alternative to ritonavir, to increase the half-life of antiviral medications (von Hentig, 2016). Cobicistat acts as a booster by selectively inhibiting the hepatic degradation of the drugs, for example, in the pharmacological regime against HIV-1, which often includes protease inhibitors, such as, darunavir, atazanavir, and lopinavir, or the integrase inhibitor elvitegravir (Deeks, 2014).</p>

<p>Selective and potent inhibitor of 8-oxoguanine DNA glycosylase OGG1 with IC50 of 0.6 μM. OGG1 is a key enzyme in DNA repair mechanism called base excision repair (BER). The compound inhibits the hydrolysis of glycosidic bond required for the excision of 8-oxoguanine from double stranded DNA, which leads to accumulation of mutations. It has been proposed as monotherapy for certain types of cancers as well as adjuvant for cancer therapy with DNA damaging agents. It has potential to sensitize tumours for chemotherapy and inhibit development of drug resistance mechanisms.</p>

<p>A cytidine analogue and inhibitor of DNA methyl transferases (DNMTs) with anti-cancer activity. This stable, hydrophilic compound forms covalent complexes between DNMT and zebularine-substrate DNA. It causes DNA lesions that block replication and cause replication fork collapse, leading to the formation of DNA double-strand breaks. It was also shown that zebularine-induced DNA methylation decrease in the IL-1β promoter region and disrupts molecular mechanisms of neuroinflammation. Moreover, this molecule down-regulates the DNA-methylation profile in the pluripotency genes’ promoters, which leads to improved development of somatic cell nuclear transfer (SCNT) embryos.</p>

<p>EGFR tyrosine kinase inhibitor; pro-apoptotic; antiproliferative in cancer cells</p>

<p>Apremilast is the commercial name of a phosphodiesterase-4 (PDE4) inhibitor developed to treat chronic inflammatory disorders. Similarly to thalidomide, the apremilast molecule carries a phthalimide ring, but it lacks however the glutarimide ring needed to bind to cereblon, specifically targeted by thalidomide. As a drug, apremilast is indicated for the treatment of psoriasis and psoriatic arthritis.</p>

<p>VEGFR tyrosine kinase inhibitor</p>

<p>Inhibitor of MEK1 and MEK2 kinases</p>

<p>Thymidylate synthase inhibitor</p>

<p>Reversible inhibitor of trypsin</p>

<p>Meloxicam is a non-steroidal anti-inflammatory drug (NSAID) which is used to treat various types of pain and inflammation caused by arthritis. It is also a COX-2 inhibitor which reduces gastrointestinal effects of this drug. Inhibiting these enzymes, allow for a decrease in inflammatory symptoms.</p>

<p>Immune suppressant; prevents pro-inflammatory cytokine release</p>

<p>Inhibitor of 5-lipoxygenase activating protein_x000D_</p>

<p>Inhibitor of Rho-kinases</p>

<p>A selective inhibitor of MEK5 protein kinase with an IC50 value of 4.3 nM. Blocks transcriptional activation of myocyte-specific enhancer factor 2C (MEF2C). Inhibits phosphorylation of ERK5 protein kinase and thereby reverses inhibition of TNF signaling induced by fluid shear stress in endothelial cells. Induces apoptosis in FLT3-ITD cells.</p>

<p>A 939572 is an inhibitor of stearoyl-CoA desaturase 1 (SCD1). It exhibits anticancer activity as it inhibits cell growth and promotes cell death in human non-small cell lung carcinoma cells.</p>

<p>Atorvastatin is an HMG-CoA reductase inhibitor which is used to lower lipid levels and to reduce the risk of cardiovascular disease. This drug belongs to the class of medicines called statins. It lowers abnormal levels of cholesterol and lipids to reduce the risk of cardiovascular disease by inhibiting the enzyme HMG-CoA.</p>

<p>Drotaverine is an antispasmodic drug that is used to alleviate gastrointestinal and genitourinary smooth muscle spasms. This drug works by inhibiting phosphodiesterase-4 and increasing levels of cAMP leading to smooth muscle relaxation.</p>

<p>Inhibitor of COX-2 and PDE4 enzymes; NSAID of coxib class</p>

<p>Antagonist of Wnt signalling pathway by inhibiting the activity of Porcn, a member of the membrane-bound O-acyltransferase (MBOAT) family. Porcn is required for the palmitoylation of Wnt, mediating its secretion and signalling. Inhibits self-renewal in embryonic stem cells, whilst promoting differentiation to epiblast stem cells.</p>

<p>Inhibitor of COX1 cyclooxygenase</p>

<p>Polmacoxib is a non-steroidal anti-inflammatory drug (NSAID), which is derived through synthetic chemical processes. It functions as a selective cyclooxygenase-2 (COX-2) inhibitor. By selectively inhibiting the COX-2 enzyme, polmacoxib reduces the conversion of arachidonic acid to prostaglandins that mediate inflammation and pain, while sparing the COX-1 enzyme that protects gastric mucosa and maintains platelet function.</p>

<p>Fibroblast growth factor receptor inhibitor</p>

<p>Thalidomide is a piperidinyl isoindole drug that is used to treat various cancers such as myeloma and erythema nodosum leprosum. This drug is immunosuppressive and has anti-angiogenic activity. Thalidomide’s mechanism of action is not fully understood however it is thought to block the activity of tumor necrosis factor-alpha (TNF-α).</p>

<p>A selective VHL inhibitor that stabilizes the hydroxylated form of HIF-α, resulting in upregulation of downstream target genes and proteins. Provides a tool for studying hypoxic signaling pathway.</p>

<p>Ibandronate is a bisphosphate used in the treatment of osteoporosis in postmenopausal women. This drug slows down the activity of osteoclasts resulting in a slower process of bone breakdown. This drug also inhibits farnesyl diphosphate and induces apoptosis of hematopoietic tumor cells.</p>

<p>Bestatin is a competitive protease inhibitor. It inhibits aminopeptidase N and is being studied for the use and treatment for acute myelocytic leukemia.</p>

<p>Benserazide is a drug that is used for the treatment of Parkinson’s disease and restless leg syndrome. This drug is a decarboxylase inhibitor and is usually used in combination with Levodopa.</p>

<p>Dutasteride is an androgenic compound and a 5α-reductase inhibitor that is used to treat benign prostatic hyperplasia (BPH) and male pattern baldness. Dutasteride reduces prostate volume and improves symptoms of BPH by inhibiting the enzyme 5α-reductase, which converts testosterone to dihydrotestosterone.</p>

<p>Diclofenac is a non-steroidal anti-inflammatory drug that is used to treat the signs and symptoms of arthritis and osteoarthritis. This drug inhibits COX-1 and COX-2 enzymes. As a result, it reduces pain and inflammation in joints. Diclofenac is usually used as a first line therapy for acute and chronic pain.</p>

<p>HMG-CoA reductase inhibitor</p>

<p>Vardenafil is a phosphodiesterase type 5 inhibitor that binds to intracellular targets and competitively inhibits cyclic guanosine monophosphate (cGMP) hydrolysis thus increasing cGMP levels. Vardenafil can be used for the research of erectile dysfunction, hepatitis and diabetes.</p>

<p>AKTide-2T is a 14-mer peptide which has the ability to bind to the substrate binding domain of Akt1 with a Ki of 12mM. AKt1 is part of the Akt kinase family which are serine/threonine kinase and it is ubiquitously expressed. AKt1 performs roles such as promoting endothelial neoplasms and through phosphorylating angiogenic substrates AKt1 plays a role in angiogenesis. AKT kinases as a whole perform functional roles in cell proliferation, cell growth, survival and intermediary metabolism.During peptide library screening, AKTide-2T was found to contain the optimal motif for successful binding to AKT. When phosphoamino acid analysis of AKTide-2T was carried out it was observed that although AKTide-2T contained two potential AKT phosphorylation sites: serine or threonine, AKT only phosphorylated the serine site. Furthermore it was found that AKTide-2T exhibits properties of being a competitive inhibitor for example it competitively inhibits histone H2B from being phosphorylated by AKT.</p>

<p>PAC 1 is a small-molecule apoptosis inducer, derived from synthetic sources, with a unique mode of action targeting the apoptotic pathways in cancer cells. PAC 1 functions by selectively activating procaspase-3, an inactive precursor of the caspase enzymes, which play a crucial role in the execution phase of cell apoptosis. By facilitating the conversion of procaspase-3 to its active form, PAC 1 enhances the apoptotic response in cancer cells, promoting cell death and offering potential therapeutic advantages.</p>

<p>A cell permeable inhibitor of oligosaccharyltransferase that interferes with the transfer of mature glycan precursors to recipient proteins. Causes reduced proliferation, G1 arrest and senescence in EGFR- and FGFR-dependent non-small-cell lung carcinoma (NSCLC) cells.</p>

<p>Proteosome inhibitor; antineoplastic</p>

<p>Pamidronic acid is a bisphosphate used in the treatment of Paget’s disease, osteolytic bone lesions and in the treatment of hypercalcemia of malignancy. This drug inhibits farnesyl diphosphate and induces apoptosis of hematopoietic tumor cells.</p>

<p>Inhibitor of EGFR transmembrane receptor</p>

<p>Phosphodiesterase (PDE5, 6, 9 and 11) inhibitor</p>

<p>MLN 4924 is a selective small molecule that acts as an inhibitor of the Nedd8-activating enzyme. This compound is synthetically derived and functions by inhibiting the conjugation of Nedd8 to cullin proteins. By blocking this pathway, MLN 4924 disrupts the activity of the SCF (Skp, Cullin, F-box containing complex) E3 ubiquitin ligase, leading to an accumulation of proteins that can induce apoptosis and cell cycle arrest.</p>

<p>N-Desmethyl ibandronate sodium is a white crystalline solid with a melting point of 238-240 °C. It has versatile building block, complex compound and research chemicals applications. It is an intermediate used in the synthesis of other compounds, such as speciality chemicals, useful intermediates and useful scaffolds. N-Desmethyl ibandronate sodium can be used in reactions that require high quality and high purity products.</p>

<p>Inhibitor of dioxygenase IDO1</p>

<p>Pan-tyrosine kinase inhibitor (VEGFR2, c-MET, RET, KIT); anti-neoplastic</p>

<p>Etoposide is a cytotoxic drug used in cancer chemotherapy. It inhibits DNA replication through inhibition of DNA topoisomerase II, thus catalysing cell cycle arrest and apoptosis. <br>Etoposide is part of our Bio-X ™ Range. These products are aimed at life science researchers who need high quality ready-to-use products for assay development, screening or other R&amp;D work. With a solubility datasheet and convenient vials, all of our Bio-X ™ products are in stock across our global warehouses for rapid delivery and ease of use.</p>

<p>Finasteride is an antiandrogenic drug that belongs to the group of 5-alpha reductase inhibitors, which are used for the treatment of benign prostatic hyperplasia and male pattern baldness. The conversion of testosterone to 5α-dihydrotestosterone (DHT) is blocked by type II 5α-reductase inhibition, which then results in significant increase in prostatic testosterone concentrations and minimal to moderate increases in serum and tissue DHT concentrations. A reduction in DHT concentration will cause a reduction in prostatic volume as DHT appears to be the main androgen responsible for stimulating prostatic growth.</p>

<p>Rofecoxib is a non-steroidal anti-inflammatory drug that is used to treat osteoarthritis, acute pain and migraine attacks. This drug is also a COX-2 inhibitor. As a result, it reduces inflammation and pain.</p>

<p>Inhibitor of metalloendopeptidase neprilysin</p>

<p>Farnesyl pyrophosphate synthase inhibitor</p>

<p>Lestaurtinib is a multitarget tyrosine kinase inhibitor of the JAK, FLT-3 and TrkA families of tyrosine kinases at nanomolar concentrations. It inhibits proliferation and induces apoptosis in vitro. Lestaurtinib is a FDA approved orphan drug for acute myeloid leukemia.</p>

<p>A potent small-molecule activator of UNC-51-like kinase 1 (ULK1), a serine-threonine kinase involved in autophagy. Promotes cytoprotective autophagy in MPP+-treated SH-SY5Y cells, via the ULK complex. Improves motor dysfunction and reduces loss of dopaminergic neurons, mediated by MPTP, in in vivo models of Parkinson’s disease.</p>

<p>Inhibitor of PDE4 enzyme</p>

<p>Inhibitor of Aurora kinases A, B and C</p>

<p>Selective and potent inhibitor of lysine acetyltransferases KAT6A and KAT6B with IC50 values of 8 nM and 28 nM, respectively. The compound is a reversible competitor of acetyl coenzyme A domain of KAT6A/B enzymes. It inhibits MYST-catalysed histone acetylation and potentiates senescence in vitro and in zebrafish model of hepatocellular carcinoma. The compound opened the door to a new class of cancer therapeutics that could potentially direct the cancer cells in senescence or permanent dormancy.</p>

<p>Oxaprozin is a non-steroidal anti-inflammatory drug (NSAID) used for the treatment of osteoarthritis and rheumatoid arthritis. This drug relieves swelling and inflammation by inhibiting the enzyme cyclooxygenase which in turn inhibits prostaglandin synthesis.</p>

<p>Inhibitor of AKR1C3 (type 5 17β-hydroxysteroid dehydrogenase)</p>

<p>Inhibitor of ecto-ATPase which blocks the hydrolysis of nucleoside diphosphates and triphosphates in extracellular space. The compound inhibits NTPDase1, NTPDase 3, NTPDase 8 and NPP1and prolongs the effect of ATP on purinergic P2 receptors in environment with physiological concentrations of nucleotides. The compound has variable effectiveness as ecto-ATP inhibitor in mouse, rat, human and guineia pig tissues.</p>

<p>Phosphodiesterase 5 inhibitor; anti-impotence drug</p>

<p>Gefitinib is an inhibitor of the epidermal growth factor receptor (EGFR) protein. This inhibition is on the EGFR tyrosine kinase domain, where Gefitinib bindings to the ATP-binding site. As a a tyrosine kinase inhibitor, Gefitinib blocks tumor growth and has led to its use in slowing the progression of non-small cell lung cancer. Gefitinib also inhibits invasion and metastasis through inhibition of macrophage receptor interacting protein kinase 2 (RIPK2), rather than EGFR.</p>

<p>O6-Benzylguanine is a guanine analog that is an antineoplastic agent. It works by acting as a suicide inhibitor of the enzyme O6-alkylguanine-DNA alkyltransferase. This results to an interruption of DNA repair so that damage can occur to local tumor targets.</p>

<p>Inhibits multiple receptor tyrosine kinases (RTKs), including c-Kit, PDGFRβ, PDGFRα, c-Met, and Axl. Sitravatinib inhibits proliferation of sarcoma cells and reduced tumor growth in vivo. Promotes immune response in tumor microenvironment and enhances sensitivity to immune checkpoint inhibitors. This compound is undergoing several clinical trials as a potential anti-cancer therapeutic agent.</p>

<p>Inhibitor of 3β-hydroxysteroid dehydrogenase in steroid biosynthesis</p>

<p>Potent and selective MAP/ERK kinase 1/2 inhibitor. Reduces growth of tumor cells with B-Raf and Ras mutations. Tumor regression observed after chronic treatment in in vivo xenograft models. Enhances anti-tumor effect in combination with irinotecan or docetaxel.</p>

<p>Inhibitor of CDK4/6 serine/threonine kinases; antineoplastic</p>

<p>Abiraterone is an antiandrogen drug used in the treatment of metastatic prostate cancer. It is a derivative of steroidal progesterone. This drug inhibits the enzyme CYP17 irreversibly, thus inhibiting the synthesis of androgen. It specifically inhibits the conversion of 17-hydroxyprognenolone to dehydroepiandrosterone to decrease serum levels of testosterone and other androgens.</p>

<p>Topoisomerase II inhibitor; chemotherapeutic drug</p>

<p>Inhibitor of cytochrome P450; inhibitor of prostaglandin synthesis</p>

<p>Imiquimod is a toll-like receptor 7 agonist drug that is used for the treatment of genital warts, basal cell carcinoma and condyloma acuminata. This drug works by relieving and controlling wart production. Studies in mice have shown that this drug may induce cytokines such as interleukins. Imiquimod helps to increase apoptosis of diseased tissues and an infiltration of lymphocytes into tumor lesions.</p>

<p>Inhibits phorbol ester TPA/PMA; immunosuppressant</p>