Chapter title |
Sigma-1 Receptor Agonists and Their Clinical Implications in Neuropsychiatric Disorders
|
---|---|
Chapter number | 11 |
Book title |
Sigma Receptors: Their Role in Disease and as Therapeutic Targets
|
Published in |
Advances in experimental medicine and biology, March 2017
|
DOI | 10.1007/978-3-319-50174-1_11 |
Pubmed ID | |
Book ISBNs |
978-3-31-950172-7, 978-3-31-950174-1
|
Authors |
Yakup Albayrak, Kenji Hashimoto, Albayrak, Yakup, Hashimoto, Kenji |
Editors |
Sylvia B. Smith, Tsung-Ping Su |
Abstract |
Accumulating evidence suggests that sigma-1 receptors play a role in the pathophysiology of neuropsychiatric diseases, as well as in the mechanisms of some selective serotonin reuptake inhibitors (SSRIs). Among the SSRIs, the order of affinity for sigma-1 receptors is as follows: fluvoxamine > sertraline > fluoxetine > escitalopram > citalopram > paroxetine. Some SSRIs (e.g., fluvoxamine, fluoxetine and escitalopram) and other drugs (donepezil , ifenprodil , dehydroepiandeterone (DHEA)) potentiate nerve-growth factor (NGF)-induced neurite outgrowth in PC12 cells, and these effects could be antagonized by the selective sigma-1 receptor antagonist NE-100. Furthermore, fluvoxamine, donepezil, and DHEA, but not paroxetine or sertraline, improved phencyclidine-induced cognitive deficits in mice, and these effects could be antagonized by NE-100. Several clinical studies showed that sigma-1 receptor agonists such as fluvoxamine and ifenprodil could have beneficial effects in patients with neuropsychiatric disorders. In this chapter, the authors will discuss the role of sigma-1 receptors in the mechanistic action of some SSRIs, donepezil, neurosteroids, and ifenprodil, and the clinical implications for sigma-1 receptor agonists . |
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