Rolipram

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Rolipram
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Clinical data
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  • none
Legal status
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  • Investigational
Pharmacokinetic data
Bioavailability75%[1]
MetabolismLiver via CYP2C8, CYP2C9, CYP2C19 and CYP2D6[1]
Elimination half-life3 hours[1]
ExcretionUrine (80%)[1]
Identifiers
  • (RS)-4-(3-cyclopentyloxy-4-methoxy-phenyl)pyrrolidin-2-one
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Chemical and physical data
FormulaC16H21NO3
Molar mass275.348 g·mol−1
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  • COc1ccc(cc1OC1CCCC1)C1CNC(=O)C1
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Rolipram is a selective phosphodiesterase-4 inhibitor discovered and developed by Schering AG as a potential antidepressant drug in the early 1990s.[2] It served as a prototype molecule for several companies' drug discovery and development efforts.[3]Template:Rp Rolipram was discontinued after clinical trials showed that its therapeutic window was too narrow; it could not be dosed at high enough levels to be effective without causing significant gastrointestinal side effects.[3]Template:Rp

Rolipram has several activities that make it a continuing focus for research. The etiology of many neurodegenerative diseases involves misfolded and clumped proteins which accumulate in the brain. Cells have a mechanism to dispose of such proteins called the proteasome. However, in Alzheimer's disease and some other conditions the activity of these proteasomes is impaired leading to a buildup of toxic aggregates. Research in mice suggests that rolipram has the ability to ramp up the activity of proteasomes and reduce the burden of these aggregates. Preliminary evidence suggests that this can improve spatial memory in mice engineered to have aggregate build-up.[4] Rolipram continues to be used in research as a well-characterized PDE4 inhibitor.[3]Template:Rp It has been used in studies to understand whether PDE4 inhibition could be useful in autoimmune diseases,[5] Alzheimer's disease,[6] cognitive enhancement,[7] spinal cord injury,[8] and respiratory diseases like asthma and COPD.[9]

See also

References

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  1. ^ a b c d Page Module:Citation/CS1/styles.css has no content.Krause W, Kühne G, Sauerbrey N (1990). "Pharmacokinetics of (+)-rolipram and (-)-rolipram in healthy volunteers". European Journal of Clinical Pharmacology. 38 (1): 71–75. doi:10.1007/BF00314807. PMID 2328751. S2CID 25683209.
  2. ^ Page Module:Citation/CS1/styles.css has no content.Zhu J, Mix E, Winblad B (Winter 2001). "The antidepressant and antiinflammatory effects of rolipram in the central nervous system". CNS Drug Reviews. 7 (4): 387–398. doi:10.1111/j.1527-3458.2001.tb00206.x. PMC 6741679. PMID 11830756.
  3. ^ a b c Page Module:Citation/CS1/styles.css has no content.McKenna JM, Muller GW (December 2006). "Chapter 33: Medicinal Chemistry of PDE4 Inhibitors.". In Beavo J, Francis SH, Houslay MD (eds.). Cyclic Nucleotide Phosphodiesterases in Health and Disease. CRC Press. ISBN 9781420020847.
  4. ^ Page Module:Citation/CS1/styles.css has no content.Myeku N, Clelland CL, Emrani S, Kukushkin NV, Yu WH, Goldberg AL, Duff KE (January 2016). "Tau-driven 26S proteasome impairment and cognitive dysfunction can be prevented early in disease by activating cAMP-PKA signaling". Nature Medicine. 22 (1): 46–53. doi:10.1038/nm.4011. PMC 4787271. PMID 26692334.
  5. ^ Page Module:Citation/CS1/styles.css has no content.Kumar N, Goldminz AM, Kim N, Gottlieb AB (April 2013). "Phosphodiesterase 4-targeted treatments for autoimmune diseases". BMC Medicine. 11 (1) 96. doi:10.1186/1741-7015-11-96. PMC 3616808. PMID 23557064.
  6. ^ Page Module:Citation/CS1/styles.css has no content.García-Osta A, Cuadrado-Tejedor M, García-Barroso C, Oyarzábal J, Franco R (November 2012). "Phosphodiesterases as therapeutic targets for Alzheimer's disease". ACS Chemical Neuroscience. 3 (11): 832–844. doi:10.1021/cn3000907. PMC 3503343. PMID 23173065.
  7. ^ Page Module:Citation/CS1/styles.css has no content.Normann C, Berger M (November 2008). "Neuroenhancement: status quo and perspectives". European Archives of Psychiatry and Clinical Neuroscience. 258 (Suppl 5): 110–114. doi:10.1007/s00406-008-5022-2. PMID 18985306. S2CID 9733191.
  8. ^ Page Module:Citation/CS1/styles.css has no content.Hannila SS, Filbin MT (February 2008). "The role of cyclic AMP signaling in promoting axonal regeneration after spinal cord injury". Experimental Neurology. 209 (2): 321–332. doi:10.1016/j.expneurol.2007.06.020. PMC 2692909. PMID 17720160.
  9. ^ Page Module:Citation/CS1/styles.css has no content.Huang Z, Mancini JA (2006). "Phosphodiesterase 4 inhibitors for the treatment of asthma and COPD". Current Medicinal Chemistry. 13 (27): 3253–3262. doi:10.2174/092986706778773040. PMID 17168849.

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