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WIN 55,212-2
Systematic (IUPAC) name
CAS number 131543-23-2
ATC code  ?
PubChem 5311501
Chemical data
Formula C27H26N2O3 
Mol. mass 522.61 g/mol
SMILES eMolecules & PubChem
Therapeutic considerations
Pregnancy cat.  ?
Legal status

WIN 55,212-2 is a chemical described as an aminoalkylindole derivative, that produces effects similar to those of Cannabinoid derivatives such as THC but has an entirely different chemical structure.[1][2][3]

WIN 55,212-2 is a potent cannabinoid receptor agonist[4] which has been found to be a potent analgesic[5] in a rat model of neuropathic pain[6]. It activates p42 and p44 MAP kinase via receptor-mediated signaling.[7]

WIN 55,212-2, alongside HU-210 and JWH-133, are implicated in preventing the inflammation caused by Amyloid beta proteins involved in Alzheimer's Disease, in addition to preventing cognitive impairment and loss of neuronal markers. This anti-inflamatory action is induced through the agonization of cannabinoid receptors which prevents microglial activation that elicits the inflammation. Additionally, cannabinoids completely abolish neurotoxicity related to microglia activation in rat models.

WIN 55212-2 is a full agonist at the CB1 receptor and has higher affinity than THC for the CB1 receptor.[8]. WIN 55212-2 produces cannabis-like effects in humans within the oral dosage range of 1 to 3 miligrams however the effects are described as milder and shorter lasting when compared to THC.[citation needed]

Pancreatic stellate cells. The cells in the lower frame are under the action of WIN 55,212-2. They are thought to assume a more "quiescent" phenotype. From Michalski et al., 2008.[9]

External links

  • Biomol Win 55,212-2 Data Sheet
  • The cannabinoid WIN 55,212-2 inhibits transient receptor potential vanilloid 1 (TRPV1) and evokes peripheral antihyperalgesia via calcineurin. 2006 Jul 18; PubMed:16849427
  • JNeurosci.orgPrevention of Alzheimer's Disease Pathology by Cannabinoids: Neuroprotection Mediated by Blockade of Microglial Activation
  • New Scientist: Hope for cannabis-based drug for Alzheimer's


  1. ^ Compton DR, Gold LH, Ward SJ, Balster RL, Martin BR. Aminoalkylindole Analogs: Cannabimimetic Activity of a Class of Compounds Structurally Distinct from Δ9-Tetrahydrocannabinol. Journal of Pharmacology and Experimental Therapeutics. 1992; 263(3):1118-1126.
  2. ^ Ferraro L, Tomasini MC, Gessa GL, Bebe BW, Tanganelli S, Antonelli T. The Cannabinoid Receptor Agonist WIN 55,212-2 Regulates Glutamate Transmission in Rat Cerebral Cortex: an In Vitro and In Vivo Study. Cerebral Cortex. 2001; (11):728-733.
  3. ^ Zhang, Q; Ma; Iszard; Cole; Wang; Wang (2002). "In vitro metabolism of R(+)-2,3-dihydro-5-methyl-3-(morpholinyl)methylpyrrolo 1,2,3-de1,4-benzoxazinyl-(1-naphthalenyl) methanone mesylate, a cannabinoid receptor agonist". Drug metabolism and disposition: the biological fate of chemicals 30 (10): 1077–86. doi:10.1124/dmd.30.10.1077. PMID 12228183.  edit
  4. ^ C.C. Felder et al. Mol. Pharmacol. 1995 48 443
  5. ^ I.D. Meng et al. Nature 1998 395 381
  6. ^ U. Herzberg et al. Neurosci. Lett. 1997 221 157
  7. ^ M. Bouaboula et al. Biochem. J. 1995 312 637
  8. ^ Kuster, JE; Stevenson; Ward; D'Ambra; Haycock (1993). "Aminoalkylindole binding in rat cerebellum: selective displacement by natural and synthetic cannabinoids". The Journal of pharmacology and experimental therapeutics 264 (3): 1352–63. PMID 8450470.  edit
  9. ^ Michalski, C.; Maier, M.; Erkan, M.; Sauliunaite, D.; Bergmann, F.; Pacher, P.; Batkai, S.; Giese, N. et al. (2008). "Cannabinoids reduce markers of inflammation and fibrosis in pancreatic stellate cells". PloS one 3 (2): e1701. doi:10.1371/journal.pone.0001701. PMID 18301776.  edit


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