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Anandamide suppresses pain initiation through a peripheral endocannabinoid mechanism
Open accessAbstract
Peripheral cannabinoid receptors exert a powerful inhibitory control over pain initiation, but the endocannabinoid signal that normally engages this intrinsic analgesic mechanism is unknown. To address this question, we developed a peripherally restricted inhibitor (URB937) of fatty acid amide hydrolase (FAAH), the enzyme responsible for the degradation of the endocannabinoid anandamide. URB937 suppressed FAAH activity and increased anandamide levels outside the rodent CNS. Despite its inability to access brain and spinal cord, URB937 attenuated behavioral responses indicative of persistent pain in rodent models of peripheral nerve injury and inflammation and prevented noxious stimulus-evoked neuronal activation in spinal cord regions implicated in nociceptive processing. CB₁ cannabinoid receptor blockade prevented these effects. These results suggest that anandamide-mediated signaling at peripheral CB₁ receptors controls the access of pain-related inputs to the CNS. Brain-impenetrant FAAH inhibitors, which strengthen this gating mechanism, might offer a new approach to pain therapy.
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“Similarly, the peripherally restricted FAAH inhibitor URB937 attenuates carrageenaninduced allodynia and hyperalgesia through a CB 1 mechanism of action.”
From The endogenous cannabinoid system: a budding source of targets for treating inflammatory and neuropathic pain (2018) · cites this paper as Clapper et al, 2010
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“However, unlike brain-permeating FAAH inhibitors, the anti-edematous effects of URB937 are mediated by both CB 1 and CB 2 receptors (Clapper et al, 2010).”
From The endogenous cannabinoid system: a budding source of targets for treating inflammatory and neuropathic pain (2018) · cites this paper as Clapper et al, 2010
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“…N-cyclohexyl-carbamic acid, 39-(aminocarbonyl)6-hydroxy[1,19- biphenyl]-3-yl ester (URB937) displays antinociceptive efficacy similar to central nervous system (CNS)–penetrant FAAH inhibitors in preclinical studies (Clapper et al., 2010; Moreno-Sanz et al., 2011; Sasso et al., 2012, 2015).”
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“[51] This scaffold merges key pharmacophores of two known classes of FAAH and COX inhibitors – O-aryl carbamates [52-58] such as [3-(3-carbamoylphe nyl)phenyl] Ncyclohexylcarbamate (URB597, 2) [54, 57], and 2-aryl propionic acids [6] such as flurbiprofen, 3a [59-61] – which share a biphenyl core as a common structural…”
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“In addition, peripheral FAAH inhibition produces CB1-dependent suppression of dorsal horn responses to formalin injection in the hind paw of rats (Clapper et al., 2010).”
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MethodCannabidivarin for HIV‐Associated Neuropathic Pain: A Randomized, Blinded, Controlled Clinical Trial
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“carbamate-based compounds URB597 (6) [37] and URB937 (7) [38], the urea-based compounds PF-750 (8) [42], PF-622 (9) [42], JNJ1661010 (10) [41] and LY2183240 (11) [33].”
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“Since a peripherally restricted FAAH inhibitor has been shown to attenuate inflammatory and neuropathic pain behavior, a role for peripheral endocannabinoids in pain modulation has also been suggested (Clapper et al., 2010; Guindon et al., 2013).”
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“Similarly, peripheral FAAH inhibition likewise produces CB1 and PPARamediated analgesic effects.(21) This suggests that FABP5 may regulate the availability of endocannabinoids/NAEs for hydrolysis by FAAH, with FABP inhibition reducing endocannabinoid metabolism.”
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“URB937 is a potent and selective FAAH inhibitor, which has restricted access to the CNS (Clapper et al., 2010).”
BackgroundResultInfluentialSelf-citationEffect of different standard rodent diets on ethanol intake and associated allodynia in male mice
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Peripherally Restricted Cannabinoids for the Treatment of Pain
Romero-Sandoval, E. A., Asbill, S., Paige, C. A., & Byrd-Glover, K. (2015) · Pharmacotherapy The Journal of Human Pharmacology and Drug Therapy · doi:10.1002/phar.1642 · Cited by 26
“When URB937 is given systemically (intraperitoneal) it results in an increase in the bioavailability of anandamide in the periphery,(4) and a reduction in pain-related behavior in murine models of visceral pain, neuropathic pain, and inflammatory pain.(47) Interestingly, URB937 has also displayed a reduction of Fos ex…”
BackgroundInfluentialIkeda, H., Ikegami, M., Kai, M., & Kamei, J. (2015) · Experimental Neurology · doi:10.1016/j.expneurol.2015.04.012 · Cited by 26
Kalliomäki, J., Philipp, A., Baxendale, J., Annas, P., Karlsten, R., & Segerdahl, M. (2012) · Clinical and Experimental Pharmacology and Physiology · doi:10.1111/j.1440-1681.2012.05674.x · Cited by 25
Emer, A. A., Donatello, N. N., Batisti, A. P., Belmonte, L. A. O., Santos, A. R. S., & Martins, D. F. (2017) · Journal of Ethnopharmacology · doi:10.1016/j.jep.2017.09.011 · Cited by 24
Identification of Fatty Acid Binding Protein 5 Inhibitors Through Similarity-Based Screening
Zhou, Y., Elmes, M. W., Sweeney, J., Joseph, O. M., Che, J., Hsu, H.-C., Li, H., Deutsch, D. G., Ojima, I., Kaczocha, M., et al. (2019) · Biochemistry · doi:10.1021/acs.biochem.9b00625 · Cited by 25
González‐Rodríguez, S., Poras, H., Menéndez, L., Lastra, A., Ouimet, T., Fournié‐Zaluski, M., Roques, B. P., & Baamonde, A. (2016) · Scandinavian Journal of Pain · doi:10.1016/j.sjpain.2016.09.011 · Cited by 24
El‐Alfy, A. T., Abourashed, E. A., Patel, C., Mazhari, N., An, H., & Jeon, A. (2019) · Journal of Pharmacy and Pharmacology · doi:10.1111/jphp.13174 · Cited by 23
“Reversible FAAH inhibition has proven to be beneficial for analgesia([41,42]) and anxiolysis([43,44]) with minimal adverse outcomes.”
BackgroundMiraucourt, L. S., Tsui, J., Gobert, D., Desjardins, J.-F., Schohl, A., Sild, M., Spratt, P. W. E., Castonguay, A., Koninck, Y. D., Marsh‐Armstrong, N., et al. (2016) · eLife · doi:10.7554/elife.15932 · Cited by 23
“…regulators of synaptic transmission that serve as important mediators of functional plasticity (Bellocchio et al., 2013; Bender et al., 2006; Clapper et al., 2010; El Manira and Kyriakatos, 2010; Han et al., 2012; Kato et al., 2012; Sjöström et al., 2003) and nervous system development…”
BackgroundCannabis and Migraine: It’s Complicated
Mechtler, L. L., Gengo, F. M., & Bargnes, V. (2021) · Current Pain and Headache Reports · doi:10.1007/s11916-020-00931-2 · Cited by 24
Bogdan, D., Studholme, K. M., DiBua, A., Gordon, C., Kanjiya, M. P., Yu, M., Puopolo, M., & Kaczocha, M. (2022) · Scientific Reports · doi:10.1038/s41598-022-13284-0 · Cited by 22
Self-administration of the anandamide transport inhibitor AM404 by squirrel monkeys
Schindler, C. W., Scherma, M., Redhi, G. H., Vadivel, S. K., Makriyannis, A., Goldberg, S. R., & Justinová, Z. (2016) · Psychopharmacology · doi:10.1007/s00213-016-4211-3 · Cited by 22
“…were proposed as potentially safer alternatives to direct CB1 agonists for treatment of pain and many neuropsychiatric disorders, including addiction, anxiety, cognitive, and movement disorders (Clapper et al. 2010; Janero et al. 2009; Pertwee 2014; Petrosino and Di Marzo 2010; Piomelli 2005).”
BackgroundNovel Analgesics with Peripheral Targets
Ciotu, C. I., & Fischer, M. J. M. (2020) · Neurotherapeutics · doi:10.1007/s13311-020-00937-z · Cited by 22
Kędziora, M., Boccella, S., Marabese, I., Mlost, J., Infantino, R., Maione, S., & Starowicz, K. (2022) · Neuropharmacology · doi:10.1016/j.neuropharm.2022.109304 · Cited by 22
“Since URB597 passes into the CNS (Clapper et al., 2010), it became intriguing for us to see if the brain structures have a role in the integration of pain.”
BackgroundInfluentialVacondio, F., Silva, C., Lodola, A., Carmi, C., Rivara, S., Duranti, A., Tontini, A., Sanchini, S., Clapper, J. R., Piomelli, D., et al. (2011) · European Journal of Medicinal Chemistry · doi:10.1016/j.ejmech.2011.07.021 · Cited by 21
“Chemical structures of URB597, URB694 and URB937.”
Self-citationScarpelli, R., Sasso, O., & Piomelli, D. (2015) · ChemMedChem · doi:10.1002/cmdc.201500395 · Cited by 21
Self-citationTransition from Acute to Chronic Pain: Where Cells, Systems and Society Meet
Glare, P., Overton, S., & Aubrey, K. (2020) · Pain Management · doi:10.2217/pmt-2019-0039 · Cited by 20
Anandamide in primary sensory neurons: too much of a good thing?
Valente, J. D. S., Varga, A., Ananthan, K., Khajuria, A., & Nagy, I. (2014) · European Journal of Neuroscience · doi:10.1111/ejn.12467 · Cited by 20
“…the activity of the main anandamide-hydrolysing enzyme fatty acid amide hydrolase (FAAH; Cravatt et al., 1996; Giang & Cravatt, 1997) selectively outside the CNS (Clapper et al., 2010; Huggins et al., 2012; Sasso et al., 2012) has been suggested as a mean to activate the CB1 receptor in PSNs.”
BackgroundInfluentialPhytocannabinoids as Potential Multitargeting Neuroprotectants in Alzheimer’s Disease
Rathod, S., & Agrawal, Y. O. (2023) · Current Drug Research Reviews · doi:10.2174/2589977515666230502104021 · Cited by 18
Bradford, D., Stirling, A., Ernault, É., Liosatos, M., Tracy, K. A., Moseley, J. L., Blahunka, P. C., & Smith, M. D. (2017) · Pain Medicine · doi:10.1093/pm/pnx046 · Cited by 21
Fotio, Y., Palese, F., Tipan, P. G., Ahmed, F., & Piomelli, D. (2020) · British Journal of Pharmacology · doi:10.1111/bph.15031 · Cited by 20
“The compound was administered 30 min prior to morphine at a dose (3 mg kg−1, i.p.) that is known to inhibit FAAH activity exclusively outside the brain and spinal cord (Clapper et al., 2010; Moreno-Sanz et al., 2013).”
BackgroundSelf-citationXie, X., Li, Y., Xu, S., Zhou, P., Yang, L., Xu, Y., Qiu, Y., Yang, Y., & Li, Y. (2022) · Frontiers in Pharmacology · doi:10.3389/fphar.2021.817603 · Cited by 19
“In addition, deletion of NAAA in neither BM nor non-BM cells do not affect PEA and OEA levels in lungs (Figures 3A,C).”
BackgroundInfluentialPietra, A. D., Savinainen, J. R., & Giniatullin, R. A. (2022) · International Journal of Molecular Sciences · doi:10.3390/ijms23084407 · Cited by 19
Micro- and nanocarriers for pain alleviation
da Silva, A., Lepêtre‐Mouelhi, S., & Couvreur, P. (2022) · Advanced Drug Delivery Reviews · doi:10.1016/j.addr.2022.114359 · Cited by 20
Rock, E. M., Moreno‐Sanz, G., Limebeer, C. L., Petrie, G. N., Angelini, R., Piomelli, D., & Parker, L. A. (2017) · British Journal of Pharmacology · doi:10.1111/bph.13980 · Cited by 19
“BJP E M Rock et al. 3844 British Journal of Pharmacology (2017) 174 3837–3847 previous findings, URB937 suppressed FAAH levels in the liver and duodenum, but not the in the PFC, confirming its peripheral site of action (Clapper et al., 2010).”
BackgroundMethodInfluentialSelf-citationEffect of styrene maleic acid WIN55,212-2 micelles on neuropathic pain in a rat model
Linsell, O., Brownjohn, P. W., Nehoff, H. L., Greish, K. F., & Ashton, J. C. (2014) · Journal of drug targeting · doi:10.3109/1061186x.2014.997737 · Cited by 19
Attenuation of Cystitis and Pain Sensation in Mice Lacking Fatty Acid Amide Hydrolase
Wang, Z., Wang, P., Hillard, C. J., & Bjorling, D. E. (2014) · Journal of Molecular Neuroscience · doi:10.1007/s12031-014-0453-x · Cited by 19
“AEA has been shown to inhibit production and release of pro-inflammatory mediators in various cell types (Cencioni et al. 2010; Clapper et al. 2010; Krishnan and Chatterjee 2012).”
AMPK contributes to aerobic exercise-induced antinociception downstream of endocannabinoids
King-Himmelreich, T. S., Möser, C. V., Wolters, M. C., Schmetzer, J., Schreiber, Y., Ferreirós, N., Russe, O. Q., Geißlinger, G., & Niederberger, E. (2017) · Neuropharmacology · doi:10.1016/j.neuropharm.2017.05.002 · Cited by 19
Attenuated pain response of obese mice (B6.Cg-lep) is affected by aging and leptin but not sex
Rodgers, H. M., Liban, S., & Wilson, L. M. (2013) · Physiology & Behavior · doi:10.1016/j.physbeh.2013.10.007 · Cited by 18
“They also display increased levels of endocannabinoids [12], which play a role in peripheral pain suppression [28].”
Review: The Role of Cannabinoids on Esophageal Function—What We Know Thus Far
Gotfried, J., Kataria, R. D., & Schey, R. (2017) · Cannabis and Cannabinoid Research · doi:10.1089/can.2017.0031 · Cited by 18
“led to an attenuated behavioral response to noxious stimuli in rodents.(65) This suggests a central role of CB1 receptors in mitigating pain-related inputs to the CNS.”
BackgroundViveros, M., Bermúdez‐Silva, F. J., López-Rodríguez, A. B., & Wagner, E. J. (2011) · Pharmaceuticals · doi:10.3390/ph4081101 · Cited by 19
“progenitor cells differentiation [7], psychiatric disorders [8], emotions [9], anxiety, stress [10,11], neuroprotection (reviewed in [12]), antinociception [13] and immunomodulation [14].”
BackgroundPetrenko, A. B., Yamazaki, M., Sakimura, K., Kano, M., & Baba, H. (2014) · Behavioural Brain Research · doi:10.1016/j.bbr.2014.05.063 · Cited by 17
“behavior in formalin and acetic acid tests in mice [34].”
BackgroundImaging the endocannabinoid signaling system
Dudok, B., & Soltész, I. (2021) · Journal of Neuroscience Methods · doi:10.1016/j.jneumeth.2021.109451 · Cited by 18
Wang, H., Taouil, A. K., Awwa, M., Clement, T., Zhu, C., Kim, J., Rendina, D., Jayanetti, K., Maharaj, A., Wang, L., et al. (2022) · Bioorganic Chemistry · doi:10.1016/j.bioorg.2022.106184 · Cited by 16
The endocannabinoid system as a therapeutic target in neuropathic pain: a review
Quintero, J.-M., Díaz, L. E., Galve‐Roperh, I., Bustos, R., Leon, M.-X., Beltran, S., & Dodd, S. (2024) · Expert Opinion on Therapeutic Targets · doi:10.1080/14728222.2024.2407824 · Cited by 18
“Anandamide has been identified as a key player in suppressing pain initiation through peripheral mechanisms involving CB1 receptors, which ultimately regulate pain-related inputs into the central nervous system [116].”
Valente, J. D. S., Varga, A., Torres-Pérez, J. V., Jenes, Á., Wahba, J., Mackie, K., Cravatt, B. F., Ueda, N., Tsuboi, K., Sántha, P., et al. (2016) · The Journal of Comparative Neurology · doi:10.1002/cne.24154 · Cited by 17
“, 2009), CB1 receptor activation by this agent is generally considered as inhibitory in nociceptive primary sensory neurons (Calignano et al., 1998; Richardson et al., 1998; Kelly et al., 2003; Clapper et al., 2010; Chen et al., 2016).”
BackgroundIndirect modulation of the endocannabinoid system by specific fractions of nutmeg total extract
El‐Alfy, A. T., Joseph, S., Brahmbhatt, A., Akati, S., & Abourashed, E. A. (2016) · Pharmaceutical Biology · doi:10.1080/13880209.2016.1194864 · Cited by 16
“Reversible FAAH or MAGL inhibition has proven to be beneficial for analgesia (Sagar et al. 2009; Clapper et al. 2010) and anxiety (Scherma et al.”
BackgroundSlivicki, R. A., Yi, J., Brings, V. E., Huynh, P. N., & Gereau, R. W. (2021) · Pain · doi:10.1097/j.pain.0000000000002550 · Cited by 15
Metadata
- Authors
- Clapper, J. R., Moreno-Sanz, G., Russo, R., Guijarro, A., Vacondio, F., Duranti, A., Tontini, A., Sanchini, S., Sciolino, N. R., Spradley, J. M., Hohmann, A. G., Calignano, A., Mor, M., Tarzia, G., & Piomelli, D.
- Affiliations
- University of California, Irvine (US)
- University of Naples Federico II (IT)
- University of Parma (IT)
- University of Urbino (IT)
- University of Georgia (US)
- Corresponding author
- Piomelli, Daniele
- ORCID
- Venue
- Nature Neuroscience
- Published
- 2010-09-19
- Volume
- 13
- Issue
- 10
- Pages
- 1265-1270
- ISSN
- 1097-6256 (ISSN-L)
- 1546-1726
- PMC
- PMC3260554
- OpenAlex
- W2143684129
- Cited by
- 346
- References
- 52
- Citations by year
- 2026: 9 · 2025: 13 · 2024: 13 · 2023: 21 · 2022: 23 · 2021: 17 · 2020: 21 · 2019: 18 · 2018: 14 · 2017: 23 · 2016: 24 · 2015: 27 · 2014: 32 · 2013: 31 · 2012: 34
- FWCI
- 22.06
- Type
- journal article
- Language
- en
- Open access
- green
- www.ncbi.nlm.nih.gov
- Licence
- www.springer.com/tdm (tdm)
- Locations
- Nature Neuroscience (publishedVersion)
- PubMed (publishedVersion)
- Europe PMC (PubMed Central) (acceptedVersion)
- PubMed Central (acceptedVersion)
- eScholarship (California Digital Library) (submittedVersion, cc-by)
- CINECA IRIS Institutional Research information system (University of Urbino) (submittedVersion)
- Funders
- National Institute on Drug Abuse (R01DA012413)
- Topics
- Health Sciences › Medicine › Pharmacology (medical) › Cannabis and Cannabinoid Research
- Health Sciences › Medicine › Physiology (medical) › Pain Mechanisms and Treatments
- Life Sciences › Neuroscience › Sensory Systems › Ion Channels and Receptors
- Keywords
- anandamide, CB1 receptor, fatty acid amide hydrolase, FAAH inhibitors, chronic pain, peripheral nerve injury, inflammation, spinal cord nociception, analgesia, blood-brain barrier
- MeSH terms
- Rimonabant, Fatty Acid Amide Hydrolases, Amidohydrolases, Animals, Arachidonic Acids, Cannabinoids, Carrageenan, Chlorobenzenes, Chromatography, Liquid, Disease Models, Animal, Drug Administration Routes, Drug Administration Schedule, Enzyme Inhibitors, Escape Reaction, Ethylene Glycols, Feeding Behavior, Formaldehyde, Gene Expression Regulation, Hyperalgesia, Indoles, Male, Mice, Inbred C57BL, Monoacylglycerol Lipases, Motor Activity, Pain, Pain Measurement, Peripheral Nervous System Diseases, Piperidines, Pyrazoles, Sciatica, Mass Spectrometry, Spinal Cord, Time Factors, Tissue Distribution, Tritium, Oncogene Proteins v-fos, Rats, Sprague-Dawley, Pain Threshold, Mice, Knockout, Statistics, Nonparametric, PPAR alpha, Mice, Rats, Polyunsaturated Alkamides, Cannabinoid Receptor Modulators, Endocannabinoids
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