Ro5-4864

Ro5-4864
Systematic (IUPAC) name
7-Chloro-5-(4-chlorophenyl)-1-methyl-3H-1,4-benzodiazepin-2-one
Clinical data
Legal status
  • Not FDA approved
Identifiers
CAS Number 14439-61-3 YesY
PubChem CID 1688
ChemSpider 1625
Chemical data
Formula C16H12Cl2N2O
Molar mass 319.185
  (verify)

Ro5-4864[1] (4'-chlorodiazepam) is a drug which is a benzodiazepine derivative of diazepam. However unlike most benzodiazepine derivatives, Ro5-4864 lacks affinity for GABAA receptors and lacks typical benzodiazepine effects,[2] instead being sedative yet also convulsant and anxiogenic in effects.[3][4][5][6] Ro5-4864 was found to be a potent ligand for the "peripheral benzodiazepine receptor",[7] later renamed to mitochondrial translocator protein 18kDa (TSPO). Despite its convulsant effects, at lower doses Ro5-4864 has proved to be neuroprotective and has become widely used for research into the role of the TSPO protein in neurotoxicity.[8][9][10][11][12][13] In vitro studies and rodent models also suggest the possibility of analgesic,[14] antidepressant,[15] cardioprotective,[16] and anti-cancer effects.[17][18][19][20]

See also

References

  1. ↑ US 3136815
  2. ↑ Patel J, Marangos PJ (May 1982). "Differential effects of GABA on peripheral and central type benzodiazepine binding sites in brain". Neuroscience Letters 30 (2): 157–60. doi:10.1016/0304-3940(82)90289-0. PMID 6287365.
  3. ↑ Weissman BA, Cott J, Hommer D, Quirion R, Paul S, Skolnick P (1983). "Pharmacological, electrophysiological, and neurochemical actions of the convulsant benzodiazepine Ro 5-4864 (4'-chlordiazepam)". Advances in Biochemical Psychopharmacology 38: 139–51. PMID 6670623.
  4. ↑ File SE, Lister RG (January 1983). "The anxiogenic action of Ro 5-4864 is reversed by phenytoin". Neuroscience Letters 35 (1): 93–6. doi:10.1016/0304-3940(83)90532-3. PMID 6682534.
  5. ↑ File SE, Green AR, Nutt DJ, Vincent ND (1984). "On the convulsant action of Ro 5-4864 and the existence of a micromolar benzodiazepine binding site in rat brain". Psychopharmacology 82 (3): 199–202. doi:10.1007/BF00427773. PMID 6326177.
  6. ↑ Pellow S, File SE (July 1984). "Behavioural actions of Ro 5-4864: a peripheral-type benzodiazepine?". Life Sciences 35 (3): 229–40. doi:10.1016/0024-3205(84)90106-1. PMID 6087055.
  7. ↑ Marangos PJ, Patel J, Boulenger JP, Clark-Rosenberg R (July 1982). "Characterization of peripheral-type benzodiazepine binding sites in brain using [3H]Ro 5-4864". Molecular Pharmacology 22 (1): 26–32. PMID 6289073.
  8. ↑ Veiga S, Azcoitia I, Garcia-Segura LM (April 2005). "Ro5-4864, a peripheral benzodiazepine receptor ligand, reduces reactive gliosis and protects hippocampal hilar neurons from kainic acid excitotoxicity". Journal of Neuroscience Research 80 (1): 129–37. doi:10.1002/jnr.20430. PMID 15696538.
  9. ↑ Leonelli E, Yague JG, Ballabio M, Azcoitia I, Magnaghi V, Schumacher M, Garcia-Segura LM, Melcangi RC (November 2005). "Ro5-4864, a synthetic ligand of peripheral benzodiazepine receptor, reduces aging-associated myelin degeneration in the sciatic nerve of male rats". Mechanisms of Ageing and Development 126 (11): 1159–63. doi:10.1016/j.mad.2005.06.001. PMID 16045970.
  10. ↑ Azarashvili T, Grachev D, Krestinina O, Evtodienko Y, Yurkov I, Papadopoulos V, Reiser G (July 2007). "The peripheral-type benzodiazepine receptor is involved in control of Ca2+-induced permeability transition pore opening in rat brain mitochondria". Cell Calcium 42 (1): 27–39. doi:10.1016/j.ceca.2006.11.004. PMID 17174393.
  11. ↑ Mills C, Makwana M, Wallace A, Benn S, Schmidt H, Tegeder I, Costigan M, Brown RH, Raivich G, Woolf CJ (February 2008). "Ro5-4864 promotes neonatal motor neuron survival and nerve regeneration in adult rats". The European Journal of Neuroscience 27 (4): 937–46. doi:10.1111/j.1460-9568.2008.06065.x. PMID 18333964.
  12. ↑ Soustiel JF, Zaaroor M, Vlodavsky E, Veenman L, Weizman A, Gavish M (December 2008). "Neuroprotective effect of Ro5-4864 following brain injury". Experimental Neurology 214 (2): 201–8. doi:10.1016/j.expneurol.2008.08.008. PMID 18789929.
  13. ↑ Giatti S, Pesaresi M, Cavaletti G, Bianchi R, Carozzi V, Lombardi R, Maschi O, Lauria G, Garcia-Segura LM, Caruso D, Melcangi RC (December 2009). "Neuroprotective effects of a ligand of translocator protein-18 kDa (Ro5-4864) in experimental diabetic neuropathy". Neuroscience 164 (2): 520–9. doi:10.1016/j.neuroscience.2009.08.005. PMID 19665520.
  14. ↑ DalBó S, Nardi GM, Ferrara P, Ribeiro-do-Valle RM, Farges RC (April 2004). "Antinociceptive effects of peripheral benzodiazepine receptors". Pharmacology 70 (4): 188–94. doi:10.1159/000075547. PMID 15001819.
  15. ↑ Gavioli EC, Duarte FS, Bressan E, Ferrara P, Farges RC, De Lima TC (June 2003). "Antidepressant-like effect of Ro5-4864, a peripheral-type benzodiazepine receptor ligand, in forced swimming test". European Journal of Pharmacology 471 (1): 21–6. doi:10.1016/S0014-2999(03)01789-8. PMID 12809948.
  16. ↑ Solhjoo S, O'Rourke B (January 2015). "Mitochondrial instability during regional ischemia-reperfusion underlies arrhythmias in monolayers of cardiomyocytes". Journal of Molecular and Cellular Cardiology 78: 90–9. doi:10.1016/j.yjmcc.2014.09.024. PMID 25268650.
  17. ↑ Obame FN, Zini R, Souktani R, Berdeaux A, Morin D (October 2007). "Peripheral benzodiazepine receptor-induced myocardial protection is mediated by inhibition of mitochondrial membrane permeabilization". The Journal of Pharmacology and Experimental Therapeutics 323 (1): 336–45. doi:10.1124/jpet.107.124255. PMID 17640950.
  18. ↑ Veenman L, Papadopoulos V, Gavish M (2007). "Channel-like functions of the 18-kDa translocator protein (TSPO): regulation of apoptosis and steroidogenesis as part of the host-defense response". Current Pharmaceutical Design 13 (23): 2385–405. doi:10.2174/138161207781368710. PMID 17692008.
  19. ↑ Papadopoulos V, Lecanu L (September 2009). "Translocator protein (18 kDa) TSPO: an emerging therapeutic target in neurotrauma". Experimental Neurology 219 (1): 53–7. doi:10.1016/j.expneurol.2009.04.016. PMC 2728790. PMID 19409385.
  20. ↑ Xiao J, Liang D, Zhang H, Liu Y, Li F, Chen YH (April 2010). "4'-Chlorodiazepam, a translocator protein (18 kDa) antagonist, improves cardiac functional recovery during postischemia reperfusion in rats". Experimental Biology and Medicine (Maywood, N.J.) 235 (4): 478–86. doi:10.1258/ebm.2009.009291. PMID 20407080.
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