期刊
BRITISH JOURNAL OF PHARMACOLOGY
卷 154, 期 6, 页码 1166-1181出版社
WILEY
DOI: 10.1038/bjp.2008.147
关键词
H-3 receptor; H-3 antagonist; histamine; cognition; neurotransmitter release; drug discovery
The histamine H-3 receptor, first described in 1983 as a histamine autoreceptor and later shown to also function as a heteroreceptor that regulates the release of other neurotransmitters, has been the focus of research by numerous laboratories as it represents an attractive drug target for a number of indications including cognition. The purpose of this review is to acquaint the reader with the current understanding of H-3 receptor localization and function as a modulator of neurotransmitter release and its effects on cognitive processes, as well as to provide an update on selected H-3 antagonists in various states of preclinical and clinical advancement. Blockade of centrally localized H-3 receptors by selective H-3 receptor antagonists has been shown to enhance the release of neurotransmitters such as histamine, ACh, dopamine and norepinephrine, among others, which play important roles in cognitive processes. The cognitive-enhancing effects of H-3 antagonists across multiple cognitive domains in a wide number of preclinical cognition models also bolster confidence in this therapeutic approach for the treatment of attention deficit hyperactivity disorder, Alzheimer's disease and schizophrenia. However, although a number of clinical studies examining the efficacy of H-3 receptor antagonists for a variety of cognitive disorders are currently underway, no clinical proof of concept for an H-3 receptor antagonist has been reported to date. The discovery of effective H-3 antagonists as therapeutic agents for the novel treatment of cognitive disorders will only be accomplished through continued research efforts that further our insights into the functions of the H-3 receptor.
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