Adenosine Receptors

N-[(4-Aminophenyl)methyl]adenosine is a adenosine receptor inhibitor, with Ki of 29 nM for Rat ecto-5??-Nucleotidase. IC50 value: 29.0 ± 1.7 nM (Ki) Target: Adenosine Receptor

Reversine is a potent human A3 adenosine receptor antagonist with Ki of 0.66 μM, and a pan-aurora A/B/C kinase inhibitor with IC50 of 12 nM/13 nM/20 nM, respectively. Also used for stem cell dedifferentiation.

MT-DADMe-ImmA is an inhibitor of human 5'-methylthioadenosine phosphorylase (MTAP) with a Ki of 90 pM.

5-Iodotubercidin is a potent adenosine kinase inhibitor with IC50 of 26 nM.

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).

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).

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.

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.

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.

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.

JMS-053 is a potent and reversible inhibitor of PTP4A3, with an IC50 value of 18 nM. This compound also exhibits significant inhibitory activity against PTP4A1 and PTP4A2, with IC50s of 50 nM and 53 nM, respectively. Additionally, JMS-053 demonstrates inhibition of CDC25B and DUSP3 with IC50 values of 92.6 nM and 207.6 nM, respectively. Through mechanisms such as interference with RhoA and STAT3/p38 signaling pathways, JMS-053 effectively suppresses tumor cell proliferation and migration, making it a valuable tool for investigating various cancers, including ovarian, breast, and colon cancer.

hA2A/hCA XII modulator 1 is a potent inhibitor of the human A2A adenosine receptor (hA2AAR) and human carbonic anhydrase XII (hCA XII). It demonstrates high affinity with IC50 values of 6.4 nM for hA2AAR and 6.2 nM for hCA XII, while exhibiting selectivity against other adenosine receptor subtypes and carbonic anhydrases. This compound is valuable for cancer research, particularly in studies related to tumor microenvironment modulation and metabolic pathways involving adenosine signaling and carbonic anhydrase activity.

CVT-2759 is a potent inhibitor of the A1 adenosine receptor, exhibiting IC50 values of 0.18 μM and 9.5 μM to antagonize [3H]CPX binding in the absence and presence of 1 mM GTP, respectively. This compound is essential for assessing the modulation of AV nodal conduction, facilitating a reduction in ventricular rate without inducing AV block, bradycardia, atrial arrhythmias, or vasodilation. It serves as a valuable reagent for research on cardiovascular physiology and pharmacological modulation of adenosine receptor pathways.

KF21213 is a selective adenosine A2A receptor inhibitor, demonstrating a high affinity with a Ki value of 3.0 nM. This compound is essential for research involving central nervous system (CNS) functions and disorders, providing valuable insights into adenosine receptor signaling pathways. Its precision in targeting A2A receptors makes it a suitable tool for studying their role in neuropharmacology and related therapeutic applications.

Adenosine receptor inhibitor 1 is a highly selective antagonist of adenosine receptors, demonstrating Ki values of >1000 nM for A1AR, A2BAR, and A3AR, and 68.5 nM for A2AAR. This compound exhibits significant antinociceptive and anti-inflammatory properties, contributing to its potential as a peripheral analgesic. Research applications include the investigation of mechanisms underlying cancer and neurodegenerative diseases, making it a valuable tool for advancing scientific understanding in these areas.

Adenosine receptor inhibitor 2 (compound 14b) is a selective antagonist of adenosine receptors, primarily targeting A1 and A2A subtypes. This compound exhibits a higher affinity for A1AR, with a Ki value of 52.2 nM, compared to 167 nM for A2AAR. Its potent inhibitory effects make it valuable for research exploring adenosine signaling pathways, and its applications may extend to studies in cardiovascular disease, cancer, and neurobiology.

8-Chloro caffeine is an adenosine receptor inhibitor that binds with a Ki of 30 µM. This compound is known to potentiate UV-induced chromosomal aberrations in Cl-I Chinese hamster embryonic lung cells, making it relevant for studies in genotoxicity. As a derivative of the methylxanthine alkaloid caffeine, 8-Chloro caffeine serves as a useful tool for investigating the role of adenosine receptors in cellular responses and stress mechanisms.

A2AAR/hMAO-B-IN-1 is a non-xanthine dual-target inhibitor that selectively inhibits the A2A adenosine receptor (A2AAR) with an IC50 of 34.9 nM, and human monoamine oxidase B (MAO-B) with a Ki of 39.5 nM. The compound effectively disrupts A2AAR-mediated cAMP accumulation and demonstrates competitive, reversible inhibition of MAO-B. A2AAR/hMAO-B-IN-1 is suitable for research applications in neurodegenerative diseases, particularly in the study of Parkinson's disease (PD).

PSB-10 hydrochloride is a highly selective antagonist of the human adenosine A3 receptor (hA3AR), demonstrating a Ki value of 0.44 nM. It exhibits over 800-fold selectivity for hA3AR compared to other adenosine receptor subtypes, including rA1, rA2A, hA1, hA2A, and hA2B, with respective Ki values of 805, 6040, 1700, 2700, and 30000 nM. This compound has been shown to induce thermal hyperalgesia in mouse models, making it valuable for exploring pain pathways and adenosine receptor signaling in research.

4-Desmethyl Istradefylline is a selective adenosine A2A receptor antagonist, serving as a significant metabolite of Istradefylline. With a Ki of 2.2 nM, it demonstrates potent inhibition of the A2A receptor, making it relevant for exploring therapeutic strategies in Parkinson's disease and related neurological disorders. Its oral bioactivity allows for convenience in in vivo research applications targeting adenosine signaling pathways.

β-Glucuronidase-IN-5 is a selective inhibitor of β-glucuronidase with an IC50 value of 39.8 μM. This compound demonstrates low cytotoxicity in PC-3 cells, with an IC50 greater than 30 μM, and shows no affinity for adenosine receptors A₁ and A₂A. β-Glucuronidase-IN-5 is useful for investigating diseases associated with overexpression of β-glucuronidase, including colon cancer, arthritis, and complications related to AIDS.