Simultaneous Blockade of Histamine H3 Receptors and Inhibition of Acetylcholine Esterase Alleviate Autistic-Like Behaviors in BTBR T+ tf/J Mouse Model of Autism

Autism spectrum disorder (ASD) is a heterogenous neurodevelopmental disorder defined by persistent deficits in social interaction and the presence of patterns of repetitive and restricted behaviors. The central neurotransmitters histamine (HA) and acetylcholine (ACh) play pleiotropic roles in physiological brain functions that include the maintenance of wakefulness, depression, schizophrenia, epilepsy, anxiety and narcolepsy, all of which are found to be comorbid with ASD. Therefore, the palliative effects of subchronic systemic treatment using the multiple-active test compound E100 with high H3R antagonist affinity and AChE inhibitory effect on ASD-like behaviors in male BTBR T+tf/J (BTBR) mice as an idiopathic ASD model were assessed. E100 (5, 10 and 15 mg/kg, i.p.) dose-dependently palliated social deficits of BTBR mice and significantly alleviated the repetitive/compulsive behaviors of tested animals. Moreover, E100 modulated disturbed anxiety levels, but failed to modulate hyperactivity parameters, whereas the reference AChE inhibitor donepezil (DOZ, one milligram per kilogram) significantly obliterated the increased hyperactivity measures of tested mice. Furthermore, E100 mitigated the increased levels of AChE activity in BTBR mice with observed effects comparable to that of DOZ and significantly reduced the number of activated microglial cells compared to the saline-treated BTBR mice. In addition, the E100-provided effects on ASD-like parameters, AChE activity, and activated microglial cells were entirely reversed by co-administration of the H3R agonist (R)-α-methylhistamine (RAM). These initial overall results observed in an idiopathic ASD mice model show that E100 (5 mg/kg) alleviated the assessed behavioral deficits and demonstrate that simultaneous targeting of brain histaminergic and cholinergic neurotransmissions is crucial for palliation of ASD-like features, albeit further in vivo assessments on its effects on brain levels of ACh as well as HA are still needed.

Medienart:

E-Artikel

Erscheinungsjahr:

2020

Erschienen:

2020

Enthalten in:

Zur Gesamtaufnahme - volume:10

Enthalten in:

Biomolecules - 10(2020), 9 vom: 28. Aug.

Sprache:

Englisch

Beteiligte Personen:

Eissa, Nermin [VerfasserIn]
Jayaprakash, Petrilla [VerfasserIn]
Stark, Holger [VerfasserIn]
Łażewska, Dorota [VerfasserIn]
Kieć-Kononowicz, Katarzyna [VerfasserIn]
Sadek, Bassem [VerfasserIn]

Links:

Volltext

Themen:

ASD-like features
Acetylcholine
Acetylcholine esterase inhibitor
Acetylcholinesterase
Autism spectrum disorder
BTBR mice
Cerebellum
Cholinesterase Inhibitors
EC 3.1.1.7
Histamine
Histamine Antagonists
Histamine H3 receptor antagonist
Journal Article
Microglial cells
Receptors, Histamine H3
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't

Anmerkungen:

Date Completed 07.09.2021

Date Revised 07.09.2021

published: Electronic

Citation Status MEDLINE

doi:

10.3390/biom10091251

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM314451943