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Review
. 2024;24(28):2421-2430.
doi: 10.2174/0115680266322294240816051818.

Tackling Neuroinflammation in Cognitive Disorders with Single-targeted and Multi-targeted Histamine H3 Receptor Modulators

Flávia Barrio Lopes  1   2 , João Paulo S Fernandes  2 , Elisa Uliassi  3
Affiliations
Review

Tackling Neuroinflammation in Cognitive Disorders with Single-targeted and Multi-targeted Histamine H3 Receptor Modulators

Flávia Barrio Lopes et al. Curr Top Med Chem. 2024.

Abstract

Neuroinflammation is a process involved in a variety of central nervous system (CNS) diseases and is being increasingly recognized as a key mediator of cognitive impairments. Neuroinflammatory responses including glial activation, increased production of proinflammatory cytokines, and aberrant neuronal signaling, contribute to cognitive dysfunctions. Histamine is a key peripheral inflammatory mediator, but plays an important role in neuroinflammatory processes as well. The unique localization of histamine H3 receptor (H3R) in the CNS along with the modulation of the release of other neurotransmitters via its action on heteroreceptors on non-histaminergic neurons have led to the development of several H3R ligands for various brain diseases. H3R antagonists/ inverse agonists have revealed potential to treat diverse neuroinflammatory CNS disorders, including neurodegenerative diseases, attention-deficit hyperactivity syndrome and schizophrenia. In this mini review, we provide a brief overview on the crucial involvement of the histaminergic transmission in the neuroinflammatory processes underlying these cognitive disorders, with a special focus on H3R involvement. The anti-neuroinflammatory potential of single-targeted and multi-targeted H3R antagonists/inverse agonists for the treatment of these conditions is discussed here.

Keywords: Central nervous system.; Cognitive disorders; Histamine H3 receptor; Multi-target compounds; Neurodegenerative disease; Neuroinflammation.

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