PUBLICATION
The Roles of Histamine Receptor 1 (hrh1) in Neurotransmitter System Regulation, Behavior, and Neurogenesis in Zebrafish
- Authors
- Yao, Y., Baronio, D., Chen, Y.C., Jin, C., Panula, P.
- ID
- ZDB-PUB-230721-52
- Date
- 2023
- Source
- Molecular neurobiology 60(11): 6660-6675 (Journal)
- Registered Authors
- Baronio, Diego, Chen, Yu-Chia, Panula, Pertti
- Keywords
- Anxiety, Dopamine, Habenula, Hypocretin, Tyrosine hydroxylase
- MeSH Terms
-
- Animals
- Histamine
- Humans
- Neurogenesis
- Neurotransmitter Agents/metabolism
- Orexins/metabolism
- Receptors, Histamine/metabolism
- Receptors, Histamine H1*/genetics
- Receptors, Histamine H1*/metabolism
- Zebrafish*/metabolism
- PubMed
- 37474883 Full text @ Mol. Neurobiol.
Citation
Yao, Y., Baronio, D., Chen, Y.C., Jin, C., Panula, P. (2023) The Roles of Histamine Receptor 1 (hrh1) in Neurotransmitter System Regulation, Behavior, and Neurogenesis in Zebrafish. Molecular neurobiology. 60(11):6660-6675.
Abstract
Histamine receptors mediate important physiological processes and take part in the pathophysiology of different brain disorders. Histamine receptor 1 (HRH1) is involved in the development of neurotransmitter systems, and its role in neurogenesis has been proposed. Altered HRH1 binding and expression have been detected in the brains of patients with schizophrenia, depression, and autism. Our goal was to assess the role of hrh1 in zebrafish development and neurotransmitter system regulation through the characterization of hrh1-/- fish generated by the CRISPR/Cas9 system. Quantitative PCR, in situ hybridization, and immunocytochemistry were used to study neurotransmitter systems and genes essential for brain development. Additionally, we wanted to reveal the role of this histamine receptor in larval and adult fish behavior using several quantitative behavioral methods including locomotion, thigmotaxis, dark flash and startle response, novel tank diving, and shoaling behavior. Hrh1-/- larvae displayed normal behavior in comparison with hrh1+/+ siblings. Interestingly, a transient abnormal expression of important neurodevelopmental markers was evident in these larvae, as well as a reduction in the number of tyrosine hydroxylase 1 (Th1)-positive cells, th1 mRNA, and hypocretin (hcrt)-positive cells. These abnormalities were not detected in adulthood. In summary, we verified that zebrafish lacking hrh1 present deficits in the dopaminergic and hypocretin systems during early development, but those are compensated by the time fish reach adulthood. However, impaired sociability and anxious-like behavior, along with downregulation of choline O-acetyltransferase a and LIM homeodomain transcription factor Islet1, were displayed by adult fish.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping