Potent, selective CB1 cannabinoid receptor antagonist/inverse agonist (Ki values are 12 and 4200 nM for CB1 and CB2 receptors respectively). Increases locomotor activity following systemic administration in vivo. Analog of SR141716A (Ki = 14 nM).
Sold with the permission of the University of Connecticut
|Storage||Desiccate at +4°C|
The technical data provided above is for guidance only. For batch specific data refer to the Certificate of Analysis.
All Tocris products are intended for laboratory research use only.
|Solvent||Max Conc. mg/mL||Max Conc. mM|
|DMSO||41.79||75mM with gentle warming|
Preparing Stock Solutions
The following data is based on the product molecular weight 557.22. Batch specific molecular weights may vary from batch to batch due to solvent of hydration, which will affect the solvent volumes required to prepare stock solutions.
|Concentration / Solvent Volume / Mass||1 mg||5 mg||10 mg|
|1 mM||1.79 mL||8.97 mL||17.95 mL|
|5 mM||0.36 mL||1.79 mL||3.59 mL|
|10 mM||0.18 mL||0.9 mL||1.79 mL|
|50 mM||0.04 mL||0.18 mL||0.36 mL|
The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.
References are publications that support the products' biological activity.
Cosenza et al (2000) Locomotor activity and occupancy of brain cannabinoid CB1 receptors by the antagonist/inverse agonist AM281. Synapse 38 477 PMID: 11044895
Gifford et al (1997) Effect of the cannabinoid receptor SPECT agent, AM 281, on hippocampal acetylcholine release from rat brain slices. Neurosci.Lett. 238 84 PMID: 9464661
Gatley et al (1998) Imaging the brain marijuana receptor: development of a radioligand that binds to cannabinoid CB1 receptors in vivo. J.Neurochem. 70 417 PMID: 9422389
Lan et al (1999) Design and synthesis of the CB1 selective cannabinoid antagonist AM281: a potential human SPECT ligand. AAPS Pharmsci. 1 E4 PMID: 11741201
If you know of a relevant reference for AM 281, please let us know.
View Related Products by Product Action
Keywords: AM 281, supplier, Potent, selective, CB1, antagonists, inverse, agonists, Cannabinoids, Receptors, AM281, cb1r, CB1, Receptors, Tocris Bioscience
26 Citations for AM 281
Citations are publications that use Tocris products. Selected citations for AM 281 include:
Han (2017) Cannabinoid receptor 1 contributes to sprouted innervation in endometrial ectopic growth through mitogen-activated protein kinase activation. Brain Res 1663 132 PMID: 28322749
Almada (2017) The synthetic cannabinoid WIN-55,212-55,212 induced-apoptosis in cytotrophoblasts cells by a mechanism dependent on CB1 receptor. Toxicology 385 67 PMID: 28495606
Shao-Hua Su et al (2016) Cannabinoid receptor agonist WIN55,212-2 and fatty acid amide hydrolase inhibitor URB597 may protect against cognitive impairment in rats of chronic cerebral hypoperfusion via PI3K/AKT signaling Behavioural Brain Research 313 334 PMID: 27424778
Lin et al (2015) Palmitoylethanolamide inhibits glutamate release in rat cerebrocortical nerve terminals. Int J Neuropsychopharmacol 16 5555 PMID: 25768340
Lage et al (2015) Lack of Hypophagia in CB1 Null Mice is Associated to Decreased Hypothalamic POMC and CART Expression. Mol Pharmacol 18 PMID: 25655433
Tchantchou and Zhang (2013) Selective inhibition of alpha/beta-hydrolase domain 6 attenuates neurodegeneration, alleviates blood brain barrier breakdown, and improves functional recovery in a mouse model of traumatic brain injury. J Neurotrauma 30 565 PMID: 23151067
Arévalo-Martín et al (2012) Early endogenous activation of CB1 and CB2 receptors after spinal cord injury is a protective response involved in spontaneous recovery. Mol Pharmacol 7 e49057 PMID: 23152849
Khasabova et al (2011) Increasing 2-arachidonoyl glycerol signaling in the periphery attenuates mechanical hyperalgesia in a model of bone cancer pain. Cereb Cortex 64 60 PMID: 21440630
Alkaitis et al (2010) Evidence for a role of endocannabinoids, astrocytes and p38 phosphorylation in the resolution of postoperative pain. PLoS One 5 e10891 PMID: 20531936
Atkinson et al (2010) Regulation of the hypothalamic-pituitary-adrenal axis circadian rhythm by endocannabinoids is sexually diergic. Endocrinology 151 3720 PMID: 20534730
Henstridge et al (2010) GPR55 ligands promote receptor coupling to multiple signalling pathways. Br J Pharmacol 160 604 PMID: 20136841
Rajesh et al (2010) Cannabinoid-1 receptor activation induces reactive oxygen species-dependent and -independent mitogen-activated protein kinase activation and cell death in human coronary artery endothelial cells. Front Pharmacol 160 688 PMID: 20590572
Huerta et al (2009) Effects of cannabinoids on caffeine contractures in slow and fast skeletal muscle fibers of the frog. J Membr Biol 229 91 PMID: 19506935
Melis et al (2008) Endogenous fatty acid ethanolamides suppress nicotine-induced activation of mesolimbic dopamine neurons through nuclear receptors. J Neurosci 28 13985 PMID: 19091987
Börner et al (2008) Analysis of promoter regions regulating basal and interleukin-4-inducible expression of the human CB1 receptor gene in T lymphocytes. Pharmacol Res 73 1013 PMID: 18156315
Rajesh et al (2007) Cannabidiol attenuates high glucose-induced endothelial cell inflammatory response and barrier disruption. Am J Physiol Heart Circ Physiol 293 H610 PMID: 17384130
Rajesh et al (2007) CB2-receptor stimulation attenuates TNF-alpha-induced human endothelial cell activation, transendothelial migration of monocytes, and monocyte-endothelial adhesion. Am J Physiol Heart Circ Physiol 293 H2210 PMID: 17660390
Newman et al (2007) Endocannabinoids mediate muscarine-induced synaptic depression at the vertebrate neuromuscular junction. Eur J Neurosci 25 1619 PMID: 17408433
Czesnik et al (2007) Cannabinoid action in the olfactory epithelium. Proc Natl Acad Sci U S A 104 2967 PMID: 17301239
Mukhopadhyay et al (2007) Pharmacological inhibition of CB1 cannabinoid receptor protects against doxorubicin-induced cardiotoxicity. J Am Coll Cardiol 50 528 PMID: 17678736
Marinelli et al (2007) N-arachidonoyl-dopamine tunes synaptic transmission onto dopaminergic neurons by activating both cannabinoid and vanilloid receptors. Neuropsychopharmacology 32 298 PMID: 16760924
Narushima et al (2007) Tonic enhancement of endocannabinoid-mediated retrograde suppression of inhibition by cholinergic interneuron activity in the striatum. J Cell Biol 27 496 PMID: 17234582
Bátkai et al (2007) Decreased age-related cardiac dysfunction, myocardial nitrative stress, inflammatory gene expression, and apoptosis in mice lacking fatty acid amide hydrolase. Int J Mol Sci 293 H909 PMID: 17434980
Börner et al (2006) Cannabinoid receptor type 2 agonists induce transcription of the mu-opioid receptor gene in Jurkat T cells. J Neurosci 69 1486 PMID: 16434616
Ohba et al (2005) BDNF locally potentiates GABAergic presynaptic machineries: target-selective circuit inhibition. PLoS One 15 291 PMID: 15238431
Williams et al (2003) The FGF receptor uses the endocannabinoid signaling system to couple to an axonal growth response. Br J Pharmacol 160 481 PMID: 12578907
Do you know of a great paper that uses AM 281 from Tocris? If so please let us know.
Literature in this Area
The key feature of drug addiction is the inability to stop using a drug despite clear evidence of harm. This poster describes the brain circuits associated with addiction, and provides an overview of the main classes of addictive drugs and the neurotransmitter systems that they target.
Schizophrenia is a debilitating psychiatric disorder that affects 1% of the worldwide population. This poster describes the neurobiology of Schizophrenia, as well as highlighting the genetic and environmental factors that play a fundamental role in the etiology of the disease. The current and emerging drug targets are also discussed.