Title:Tackling Neuroinflammation in Cognitive Disorders with Single-targeted and Multi-targeted Histamine H3 Receptor Modulators
Volume: 24
Issue: 28
Author(s): Flávia Barrio Lopes, João Paulo S. Fernandes*Elisa Uliassi*
Affiliation:
- Department of Pharmaceutical Sciences,
Federal University of São Paulo, Rua São Nicolau 210, Diadema, SP 09913-030, Brazil
- Department of Pharmacy
and Biotechnology, University of Bologna, via Belmeloro 6, 40126, Bologna, Italy
Keywords:
Neuroinflammation, Cognitive disorders, Histamine H3 receptor, Neurodegenerative disease, Multi-target compounds, Central nervous system.
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.