GPCR/G Protein

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  1. thromboxane A2 synthase inhibitor

    Terbogrel is an orally available thromboxane A2 receptor antagonist and a thromboxane A2 synthase inhibitor, with both IC50s of about 10 nM.
  2. thromboxane synthesis inhibitor

    Ro-24-0238 is an antagonist of platelet activating factor (PAF) and inhibitor of thromboxane synthesis, used for lessening the inflammation and damage resulting from a local release of PAF.
  3. GRK2 inhibitor

    GSK180736A is a G protein-coupled receptor kinase 2 (GRK2) inhibitor with an IC50 of 0.77 μM.
  4. leukotriene A4 hydrolase inhibitor

    Acebilustat (CTX-4430) is a leukotriene A4 hydrolase inhibitor, used for an oral antiinflammatory drug.
  5. monoamine reuptake inhibitor

    Diclofensine hydrochloride (Ro-8-4650 hydrochloride) is a potent inhibitor of monoamine reuptake, blocking the uptake of dopamine, noradrenaline, and serotonin by rat brain synaptosomes with IC50 values of 0.74, 2.3, and 3.7 nM, respectively.
  6. Smo inhibitor

    LEQ506 is a second-generation inhibitor of smoothened (Smo) with IC50s of 2 and 4 nM in human and mouse, respectively.
  7. dual NE/DA transporter inhibitor

    Centanafadine is dual norepinephrine (NE)/dopamine (DA) transporter inhibitor, also inhibits serotonin transporter, with IC50s of 6 nM, 38 nM and 83 nM for human NE, DA and serotonin transporter , respectively.
  8. AC1 inhibitor

    NB001 (HTS 09836) is an adenylcyclase 1 (AC1) inhibitor which has effect on neural and non-neural pain by modulating AC1 activity.
  9. 5-HT1A/5-HT1B/5-HT3A/5-HT7 receptor/SERT inhibitor

    Vortioxetine is a inhibitor of 5-HT1A, 5-HT1B, 5-HT3A, 5-HT7 receptor and SERT, with Ki values of 15 nM, 33 nM, 3.7 nM, 19 nM and 1.6 nM, respectively.
  10. S1P inhibitor

    PF429242 dihydrochloride is a reversible and competitive S1P inhibitor with an IC50 of 175 nM.
  11. sGC inhibitor

    NS-2028 is a highly selective soluble Guanylyl Cyclase (sGC) inhibitor with IC50 values of 30 nM and 200 nM for basal and NO-stimulated enzyme activity.
  12. triple reuptake inhibitor

    Dasotraline hydrochloride (SEP-225289 hydrochloride) is a triple reuptake inhibitor that blocks dopamine, norepinephrine, and serotonin transporters with IC50 values of 4, 6, and 11 nM, respectively.
  13. SSR inhibitor / 5-HT1A receptor partial agonist

    Vilazodone D8 is the a deuterium labeled vilazodone, which is a combined serotonin specific reuptake inhibitor (SSRI) and 5-HT1A receptor partial agonist.
  14. leukotriene A4 hydrolase inhibitor

    DG051 is a potent leukotriene A4 hydrolase inhibitor of leukotriene B4 biosynthesis in the enzyme assay with an IC50=47 nM.
  15. DPP4 inhibitor

    Vildagliptin (LAF237 dihydrate;NVP-LAF 237 dihydrate) is a dipeptidyl peptidase 4 (DPP4) inhibitor that delays the degradation of glucagon-like peptide-1 (GLP-1).
  16. dopamine reuptake inhibitor

    Vanoxerine (GBR-12909) is a competitive, potent, and highly selective dopamine reuptake inhibitor (Ki=1 nM).
  17. LTC4 inhibitor

    Nedocromil sodium suppresses the action or formation of multiple mediators, including histamine, leukotriene C4 (LTC4), and prostaglandin D2 (PGD2).
  18. dopamine reuptake inhibitor

    GBR 12935 is a potent, and selective dopamine reuptake inhibitor.
  19. serotonin reuptake inhibitor/5-HT2A receptor antagonist

    Eplivanserin mixture is a selective serotonin reuptake inhibitor and a 5-HT2A receptor antagonist, extracted from patent WO 2005/002578 A1.
  20. bovine tubulin oxidation inhibitor

    Takeda103A is a potent GRK2-dependent bovine tubulin oxidation inhibitor.
  21. allosteric inhibitor of CXCR1 and CXCR2

    SX-682 is an orally bioavailable, potent allosteric inhibitor of CXCR1 and CXCR2.
  22. ODQ

    soluble guanylyl cyclase inhibitor

    ODQ is a potent and selective soluble guanylyl cyclase (sGC, nitric oxide-activated enzyme) inhibitor. ODQ enhances the pro-apoptotic effects of Cisplatin in human mesothelioma cells.
  23. prostaglandin synthase inhibitor

    Pizuglanstat is a hematopoietic prostaglandin synthase inhibitor.
  24. norepinephrine reuptake inhibitor

    (R)-Viloxazine Hydrochloride is the R-isomer of Viloxazine, a selective norepinephrine reuptake inhibitor (NRI) that can be used as an antidepressant.
  25. norepinephrine reuptake inhibitor

    (S)-Viloxazine Hydrochloride is the S-isomer of Viloxazine, a selective norepinephrine reuptake inhibitor (NRI) that can be used as an antidepressant.
  26. Pigmentation inhibitor

    N,N′-Diferuloylputrescine acts as a pigment inhibitor, showing a 57% reduction in pigmentation. It also considerably diminishes the protein expression of MITF and displays potent antioxidant properties as a radical scavenger against reactive oxygen species.

  27. CaSR inhibitor

    Calhex 231 hydrochloride is a potent negative allosteric modulator of the calcium-sensing receptor (CaSR), with an IC50 of 0.39 μM for inhibiting \[³H]inositol phosphate accumulation induced by CaSR activation. It transiently blocks signaling through the human wild-type CaSR and is utilized in research related to traumatic hemorrhagic shock (THS) and diabetic cardiomyopathy (DCM), where dysregulated calcium signaling contributes to disease pathology.
  28. PAR2 inhibitor

    I-287 is an orally active and selective protease-activated receptor 2 (PAR2) inhibitor that functions as a negative allosteric modulator, specifically targeting Gαq and Gα12/13 signaling pathways and their downstream effectors. By disrupting PAR2-mediated signaling, I-287 effectively reduces inflammation in preclinical models, including Complete Freund's Adjuvant (CFA)-induced inflammation in mice.
  29. NSAID/COX inhibitor

    Fenoprofen (LILLY-53858) is a nonsteroidal anti-inflammatory drug (NSAID) that functions primarily by inhibiting cyclooxygenase (COX) enzymes, thereby reducing the synthesis of pro-inflammatory prostaglandins. In addition to its classical NSAID activity, Fenoprofen has been identified as a positive allosteric modulator (PAM) of melanocortin receptors (MCRs), enhancing MCR-mediated signaling. Fenoprofen also promotes ERK1/2 activation in HEK293T cells, suggesting additional modulation of intracellular signaling pathways involved in inflammation and cellular proliferation.
  30. NMDAR/TRPM4 inhibitor

    Brophenexin (compound 8) is a potent inhibitor of the interaction interface between NMDA receptors (NMDAR) and TRPM4 channels, exhibiting significant neuroprotective activity. It prevents NMDA-induced excitotoxicity, including cell death and mitochondrial dysfunction in hippocampal neurons, with an IC₅₀ of 2.1 μM. In vivo, Brophenexin protects against brain damage in mice subjected to middle cerebral artery occlusion (MCAO) and preserves retinal ganglion cells from NMDA-induced degeneration. These findings support its potential as a therapeutic agent for neurodegenerative diseases and ischemic brain injury.
  31. GRK5 inhibitor

    KR-39038 is a potent and orally bioavailable inhibitor of G protein-coupled receptor kinase 5 (GRK5), with an IC₅₀ of 0.02 μM. It effectively suppresses angiotensin II–induced cellular hypertrophy by inhibiting the HDAC5 signaling pathway in neonatal cardiomyocytes. KR-39038 exhibits strong anti-hypertrophic activity and improves cardiac function in preclinical models, making it a promising candidate for research in heart failure and related cardiovascular diseases.
  32. ErbB2 inhibitor

    AG-825 is a selective, ATP-competitive inhibitor of ErbB2 (HER2) tyrosine kinase, with an IC₅₀ of 0.35 μM. It exhibits both anticancer and anti-inflammatory activities and has been shown to significantly accelerate apoptosis in human neutrophils. AG-825 also increases β₁-adrenergic receptor (β₁AR) density, suggesting potential cardiomodulatory effects. Due to its multifaceted biological activity, AG-825 is a valuable compound for research in oncology, inflammation, and cardiovascular disease.
  33. Prostaglandin E2 Inhibitor

    Thielavin B is an inhibitor of prostaglandin biosynthesis, specifically targeting the synthesis of prostaglandin E2 from endoperoxide precursors. This compound demonstrates significant anti-inflammatory activity, as evidenced by its efficacy in reducing carrageenan-induced edema in rat models following intravenous administration. Thielavin B is valuable for research focused on inflammation and pain pathways.
  34. PDE Inhibitor

    Theophylline, a potent phosphodiesterase (PDE) inhibitor, primarily targets PDE3, leading to relaxation of airway smooth muscle and enhanced bronchodilation. This compound also functions as an adenosine receptor antagonist and exhibits anti-inflammatory properties by elevating IL-10 levels and inhibiting NF-κB translocation into the nucleus. Additionally, Theophylline has been shown to induce apoptosis in certain cell types. Its applications are particularly relevant in the research of asthma and chronic obstructive pulmonary disease (COPD).
  35. L-glutamate Uptake Inhibitor

    Evans Blue is a potent inhibitor of L-glutamate uptake through the membrane-bound excitatory amino acid transporter (EAAT). This compound effectively inhibits L-glutamate and kainate receptor-mediated currents, making it valuable for research into neurophysiological processes. Additionally, due to its strong affinity for serum albumin, Evans Blue serves as a high molecular weight protein tracer and is widely used to investigate blood-brain barrier (BBB) permeability.
  36. Endothelin Receptor Inhibitor

    Carperitide is a synthetic analogue of Atrial Natriuretic Peptide (ANP) that acts as an endothelin receptor inhibitor. This 28-amino acid peptide significantly reduces endothelin-1 secretion in a dose-dependent manner, thereby promoting vasodilation and natriuresis. It is primarily used in research applications related to cardiovascular physiology, providing insights into heart failure mechanisms and the regulation of blood pressure.
  37. PDE Inhibitor

    Theophylline sodium acetate functions as a potent phosphodiesterase (PDE) inhibitor, specifically targeting PDE3 to promote the relaxation of airway smooth muscle. It also acts as an adenosine receptor antagonist and histone deacetylase (HDAC) activator, contributing to its anti-inflammatory properties by elevating IL-10 levels and inhibiting NF-κB translocation to the nucleus. Additionally, Theophylline sodium acetate is known to induce apoptosis, making it a valuable reagent for research on asthma and chronic obstructive pulmonary disease (COPD).
  38. CXCR4 Inhibitor

    Hit 14 is a selective inhibitor of C-X-C chemokine receptor type 4 (CXCR4), demonstrating an IC50 value of 254 nM. This compound effectively inhibits the migration and invasion of MDA-MB-231 cells, highlighting its potential in cancer research. Furthermore, Hit 14 modulates Akt phosphorylation and exhibits anti-inflammatory properties, demonstrating efficacy in reducing ear swelling and damage in mouse models. Its diverse biological activities make it a valuable tool for studies related to cancer metastasis and inflammation.
  39. Angiotensin Receptor Inhibitor

    YS-49 monohydrate is a selective angiotensin receptor inhibitor, primarily targeting the angiotensin II pathway. This compound effectively reduces angiotensin II-stimulated proliferation of vascular smooth muscle cells by inducing heme oxygenase-1, offering potential therapeutic insights for cardiovascular research. Additionally, as an isoquinoline alkaloid, YS-49 demonstrates significant positive inotropic effects through the activation of cardiac β-adrenoceptors, making it a valuable reagent for studies involving cardiac function and vascular biology.
  40. CB1/P-gp Inhibitor

    Voacamine is an indole alkaloid that acts as an antagonist of the cannabinoid receptor 1 (CB1) and also functions as a P-glycoprotein (P-gp) inhibitor. This compound enhances the efficacy of Doxorubicin by modulating P-gp activity, promoting apoptosis-independent autophagic cell death in human osteosarcoma cells. Additionally, Voacamine activates mitochondrial-associated apoptosis signaling pathways while inhibiting the PI3K/Akt/mTOR pathway, thus suppressing breast cancer progression. Moreover, it demonstrates oncogenic activity against colorectal cancer by inhibiting epidermal growth factor receptor (EGFR).
  41. Dopamine β-hydroxylase Inhibitor

    Fusaric acid is a potent dopamine β-hydroxylase inhibitor that reduces endogenous levels of norepinephrine and epinephrine in various tissues, including the brain, heart, spleen, and adrenal glands. By inducing oxidative stress and apoptosis, fusaric acid disrupts mitochondrial integrity and activates key apoptosis-related proteases such as Caspase-3/7, -8, and -9. Additionally, fusaric acid regulates pivotal apoptotic proteins, inhibits fibrosis-related signaling pathways including NF-κB and TGF-β1/SMADs, and mitigates collagen deposition. Its applications extend to myocardial fibrosis and cardiac hypertrophy research, as well as studies on esophageal and liver cancers.
  42. IBAT Inhibitor

    (S)-Elobixibat is a selective inhibitor of the intestinal bile acid transporter (IBAT). It effectively lowers LDL cholesterol levels, enhances serum levels of GLP-1, and promotes colonic motility, making it a valuable tool in metabolic syndrome research. This compound is utilized in studies related to constipation, dyslipidemia, non-alcoholic fatty liver disease, and liver tumors.
  43. A2AAR/HDAC Dual Inhibitor

    A2AAR/HDAC-IN-2 is a potent dual inhibitor targeting the adenosine A2A receptor (A2AAR) and histone deacetylase 1 (HDAC1). It demonstrates a strong binding affinity for A2AAR with a Ki value of 10.3 nM and exhibits significant inhibitory activity against HDAC1 with an IC50 of 18.5 nM. This compound is applicable in cancer research, particularly in studies exploring antitumor mechanisms and therapeutic efficacy.
  44. A2AAR/HDAC Inhibitor

    A2AAR/HDAC-IN-1 is a potent dual inhibitor targeting the A2A adenosine receptor (A2AAR) and histone deacetylase 1 (HDAC1), with a Ki of 163.5 nM for A2AAR and an IC50 of 145.3 nM for HDAC1. This compound demonstrates significant anticancer activity, making it a valuable reagent for research in cancer therapeutics and epigenetic modulation. Its oral bioavailability enhances its utility in in vivo studies, facilitating investigations into the mechanisms underlying tumor growth and proliferation.
  45. A2A Receptor/HDAC Inhibitor

    IHCH-3064 is a dual-target compound that inhibits the Adenosine A2A Receptor and histone deacetylase (HDAC). It demonstrates potent binding affinity for the A2A receptor (Ki = 2.2 nM) and selectively inhibits HDAC1 with an IC50 of 80.2 nM. This compound exhibits significant antiproliferative activity against various tumor cell lines in vitro, making it a valuable tool for tumor immunotherapy research applications.
  46. Histamine N-Methyltransferase Inhibitor

    SKF 91488 dihydrochloride is a potent, noncompetitive inhibitor of histamine N-methyltransferase, exhibiting a Ki value of 0.9 μM. This compound effectively blocks the metabolism of histamine, leading to elevated concentrations of histamine in biological systems. SKF 91488 dihydrochloride plays a significant role in research focusing on infection, inflammation, and cardiovascular diseases, including studies on Mycoplasma pneumonia and hemorrhagic hypotension. Its influence on blood pressure and bronchoconstriction further underscores its utility in exploring related pathophysiological mechanisms.
  47. CXCR Inhibitor

    Corydalmine, a CXCR inhibitor, demonstrates significant antifungal activity by inhibiting spore germination in various plant pathogenic and saprophytic fungi. Additionally, it serves as an oral analgesic agent, exhibiting potent analgesic effects. Corydalmine has been shown to alleviate Vincristine-induced neuropathic pain in murine models through the inhibition of the NF-κB-dependent CXCL1/CXCR2 signaling pathway, making it a valuable tool for pain research and therapeutic applications.
  48. CXCR Inhibitor

    Corydalmine hydrochloride is a potent CXCR inhibitor that demonstrates significant biological activity by inhibiting spore germination in certain plant pathogenic and saprophytic fungi. Additionally, it exhibits notable analgesic properties, effectively alleviating Vincristine-induced neuropathic pain in murine models. This effect is mediated through the inhibition of the NF-κB-dependent CXCL1/CXCR2 signaling pathway, highlighting its potential applications in pain management research and fungal inhibition studies.
  49. PARP-1 Inhibitor

    Benzo[c][1,8]naphthyridin-6(5H)-one is a potent inhibitor of poly(ADP-ribose) polymerase-1 (PARP-1) and aurora kinase A, exhibiting IC50 values of 0.311 μM and 5.5 μM, respectively. This compound demonstrates low micromolar affinity for human adenosine receptors AR A1 and hA2A, with Ki values of 4.6 and 4.8 μM. Due to its mechanistic action, Benzo[c][1,8]naphthyridin-6(5H)-one is valuable for research applications targeting DNA repair pathways and cancer therapies.
  50. Histamine Receptor Inhibitor

    Levodropropizine is a selective histamine receptor inhibitor primarily used as a peripheral antitussive agent. Its mechanism of action involves the suppression of cough reflexes through its interaction with histamine receptors, making it effective in treating cough associated with colds and allergies. Levodropropizine is noted for its good tolerance profile, facilitating its use in various research applications focused on respiratory physiology and pharmacology.

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