Abstract
Alzheimer's and Parkinson's disease are the most prevalent neurodegenerative diseases and the leading causes of dementia worldwide. The etiology of these multifactorial pathologies is not completely known. The available therapeutic approaches can cause temporary relief of symptoms but cannot slow down their progression or cure them. Life-changing therapeutic solutions are urgently needed, as the number of people suffering from these pathologies has been increasing quickly over the last few decades. Several targets are being studied, and innovative approaches are being pursued to find new therapeutic options. This overview is focused on the most recent information regarding the paradigm of using multitarget compounds to treat both Alzheimer's and Parkinson's disease.
Papers of special note have been highlighted as: • of interest; •• of considerable interest
References
- 1. . Neurodegenerative diseases and ageing. Subcell. Biochem. 91, 75–106 (2019). • Describes the main neuropathological features of the most common age-associated neurodegenerative diseases.
- 2. Machine learning identifies candidates for drug repurposing in Alzheimer's disease. Nat. Commun. 12, 1033 (2021).
- 3. Drug delivery across the blood–brain barrier: recent advances in the use of nanocarriers. Nanomedicine 15(2), 205–214 (2020). •• Provides comprehensive insight into the most recent advancements in nanocarrier-based drug delivery to the CNS, such as the development of multifunctional nanomedicines and theranostics.
- 4. Biomimetic drug-delivery systems for the management of brain diseases. Biomater. Sci. 8, 1073–1088 (2020).
- 5. . Molecular pathology of neurodegenerative diseases: principles and practice. J. Clin. Pathol. 72(11), 725–735 (2019).
- 6. A perspective on multi-target drug discovery and design for complex diseases. Clin. Transl. Med. 7(1), 3 (2018). • Focuses on the molecular and computational approaches that underpin drug design by medicinal chemists to promote understanding and collaboration with clinical scientists.
- 7. . In silico studies in drug research against neurodegenerative diseases. Curr. Neuropharmacol. 16(6), 664–725 (2018).
- 8. . What is polypharmacy? A systematic review of definitions. BMC Geriatr. 17(1), 230 (2017). • Identifies and summarizes polypharmacy definitions in existing literature.
- 9. 7-amidocoumarins as multitarget agents against neurodegenerative diseases: substitution pattern modulation. ChemMedChem 16, 179–186 (2021).
- 10. Combination drug therapy for the management of Alzheimer's Disease. Int. J. Mol. Sci. 21, 3272 (2020).
- 11. Acetylcholinesterase noncovalent inhibitors based on a polyamine backbone for potential use against Alzheimer's disease. J. Med. Chem. 41, 4186–4189 (1998).
- 12. Development of multifunctional molecules as potential therapeutic candidates for Alzheimer's disease, Parkinson's disease, and amyotrophic lateral sclerosis in the last decade. Chem. Rev. 119, 1221–1322 (2019). •• Focuses on the development of multifunctional compounds capable of simultaneously interacting with several pathological components as a solution to the complex pathologies of neurodegenerative diseases.
- 13. . Diagnosis and treatment of Parkinson disease: a review. JAMA 323(6), 548–560 (2020). • Reviews the diagnosis and treatment of Parkinson disease.
- 14. . Levodopa in Parkinson's disease: current status and future developments. Curr. Neuropharmacol. 16(8), 1239–1252 (2018).
- 15. Dopaminergic agonists in Parkinson's disease. Neurologia 29(4), 230–241 (2014).
- 16. Neuroprotective profile of the multitarget drug rasagiline in Parkinson's disease. Int. Rev. Neurobiol. 100, 127–149 (2011).
- 17. . Inhibitors of MAO-B and COMT: their effects on brain dopamine levels and uses in Parkinson's disease. J. Neural. Transm. 126(4), 433–448 (2019).
- 18. Parkinson's disease: a review from pathophysiology to treatment. Mini Rev. Med. Chem. 20(9), 754–767 (2020). • Illustrates the pathophysiology and treatment of Parkinson's disease.
- 19. Comparison of selegiline and levodopa combination therapy versus levodopa monotherapy in the treatment of Parkinson's disease: a meta-analysis. Aging Clin. Exp. Res. 32(5), 1–11 (2020).
- 20. . Extended-release amantadine for levodopa-induced dyskinesia. Exp. Rev. Neurother. 19(4), 293–299 (2019).
- 21. . Rationally designed multi-targeted agents against neurodegenerative diseases. Curr. Med. Chem. 20(13), 1662–1672 (2013).
- 22. Dual functional cholinesterase and MAO inhibitors for the treatment of Alzheimer's disease: synthesis, pharmacological analysis and molecular modeling of homoisoflavonoid derivatives. J. Enzyme Inhib. Med. Chem. 31(3), 389–397 (2016).
- 23. Synthesis, pharmacological study and docking calculations of new benzo[f]coumarin derivatives as dual inhibitors of enzymatic systems involved in neurodegenerative diseases. Future Med. Chem. 6(4), 371–383 (2014).
- 24. Design, synthesis and evaluation of novel dual monoamine-cholinesterase inhibitors as potential treatment for Alzheimer's disease. Neuropharmacology 109, 376–385 (2016).
- 25. . Dual inhibitors of monoamine oxidase and cholinesterase for the treatment of Alzheimer disease. Curr. Top. Med. Chem. 13(14), 1692–1706 (2013).
- 26. . Development of dual inhibitors against Alzheimer's disease using fragment-based QSAR and molecular docking. Biomed. Res. Int. 2014, 979606 (2014).
- 27. Novel coumarin-quinoline hybrids: design of multitarget compounds for Alzheimer's disease. ChemistrySelect 4, 551–558 (2019).
- 28. . Advances in the treatment of Alzheimer's disease: benefits of dual cholinesterase inhibition. Eur. Neurol. 47(1), 64–70 (2002).
- 29. Discovery of a potent dual inhibitor of acetylcholinesterase and butyrylcholinesterase with antioxidant activity that alleviates Alzheimer-like pathology in old APP/PS1 mice. J. Med. Chem. 64(1), 812–839 (2021).
- 30. Dual-target-directed drugs that block monoamine oxidase B and adenosine A2A receptors for Parkinson's disease. Neurotherapeutics 6(1), 141–151 (2009).
- 31. Docking screens for dual inhibitors of disparate drug targets for Parkinson's disease. J. Med. Chem. 61(12), 5269–5278 (2018).
- 32. . Oxidative stress, mitochondrial abnormalities and proteins deposition: multitarget approaches in Alzheimer's disease. Curr. Top. Med. Chem. 17(27), 3062–3079 (2017).
- 33. New melatonin-cinnamate hybrids as multi-target drugs for neurodegenerative diseases: Nrf2-induction, antioxidant effect and neuroprotection. Future Med. Chem. 7(15), 1961–1969 (2015).
- 34. . Ladostigil: a novel multimodal neuroprotective drug with cholinesterase and brain-selective monoamine oxidase inhibitory activities for Alzheimer's disease treatment. Curr. Drug Targets 13(4), 483–94 (2012).
- 35. Design, synthesis and biological evaluation of rasagiline-clorgyline hybrids as novel dual inhibitors of monoamine oxidase-B and amyloid-β aggregation against Alzheimer's disease. Eur. J. Med. Chem. 202(15), 112475 (2020).
- 36. . Coumarin-rasagiline hybrids as potent and selective hMAO-B inhibitors, antioxidants and neuroprotective agents. ChemMedChem 15, 532–538 (2020).
- 37. . Perspectives for new and more efficient multifunctional ligands for Alzheimer's disease therapy. Molecules 25(15), 3337 (2020).
- 38. . New tacrine-4-oxo-4H-chromene hybrids as multifunctional agents for the treatment of Alzheimer's disease, with cholinergic, antioxidant, and betaamyloid-reducing properties. J. Med. Chem. 55, 1303–1317 (2012).
- 39. . High throughput artificial membrane permeability assay for blood-brain barrier. Eur. J. Med. Chem. 38, 223–232 (2003).
- 40. . Novel small molecule therapeutic agents for Alzheimer disease: focusing on BACE1 and multi-target directed ligands. Bioorg. Chem. 97, 103649 (2020). •• Extensive and complete overview of BACE1 inhibitors.
- 41. Multifunctional tacrine-flavonoid hybrids with cholinergic, beta-amyloid-reducing, and metal chelating properties for the treatment of Alzheimer's disease. Eur. J. Med. Chem. 69, 632–646 (2013).
- 42. . The chemistry toolbox of multitarget-directed ligands for Alzheimer's disease. Eur. J. Med. Chem. 181, 111572 (2019). •• Extensive and complete overview of the chemistry toolbox of multitarget ligands for Alzheimer's disease.
- 43. Multitarget compounds bearing tacrine- and donepezil-like structural and functional motifs for the potential treatment of Alzheimer's disease. Prog. Neurobiol. 151, 4–34 (2017).
- 44. Novel multitarget-directed tacrine derivatives as potential candidates for the treatment of Alzheimer's disease. J. Enzyme Inhib. Med. Chem. 32(1), 572–587 (2017).
- 45. Design, synthesis and biological evaluation of coumarin alkylamines as potent and selective dual binding site inhibitors of acetylcholinesterase. Bioorg. Med. Chem. 21, 146–152 (2013).
- 46. Donepezil-like multifunctional agents: design, synthesis, molecular modeling and biological evaluation. Eur. J. Med. Chem. 121, 864–879 (2016).
- 47. . Dual-target compounds for Alzheimer's disease: natural and synthetic AChE and BACE-1 dual-inhibitors and their structure-activity relationship (SAR). Eur. J. Med. Chem. 221, 113492 (2021).
- 48. . Amyloid-β and tau aggregation dual-inhibitors: a synthetic and structure-activity relationship focused review. Eur. J. Med. Chem. 214, 113209 (2021).
- 49. . A perspective on multi-target drugs for Alzheimer's disease. Trends Pharmacol. Sci. 41(7), 434–445 (2020). •• Highlights the advantages and drawbacks of multitarget drugs for Alzheimer's disease.