A Purview on Hippocampal Cells in Health and Diseases

A special issue of Cells (ISSN 2073-4409).

Deadline for manuscript submissions: 10 September 2024 | Viewed by 558

Special Issue Editors


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Guest Editor
Department of Neuroscience, Karolinska Institutet, Retzius väg 8, 17177 Stockholm, Sweden
Interests: neuroscience; biochemistry; molecular biology; bioinformatics and computational biology; cell signaling; cell culture; neurobiology; neurodegenerative diseases
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
Department of Cancer Biology, University of Cincinnati College of Medicine, Cincinnati, OH, USA
Interests: glial neurobiology; animal cognition and behavior; neuroinflammation; neurodegeneration; brain cancer; neurodevelopment; neurodegenerative diseases; metabolic disease; neurotransmission; developing brain disorders

Special Issue Information

Dear Colleagues,

The hippocampus is the site of learning and memory, and as an essential part of the limbic system, it regulates cognitive and emotional behavior. During brain development, the hippocampus is the critical region for cell genesis and development. In adulthood, along with SVZ, it serves as a key ground for adult neurogenesis and maintains a healthy brain cell population. Various theories have favored the involvement of hippocampal cells in responses to spatial and non-spatial information unconventionally processed using a spatial framework, extending the perspective of hippocampal functions to the brain’s health and neurological disorders. With increasing age, the hippocampal cells’ plasticity and renewal ability increase their vulnerability, making the hippocampus a leading location for the commencement of various psychiatric and neurological disorders. Advancements in techniques like electrophysiology, neuropharmacology, single-cell sequencing, and histochemical characterization have made it easier to understand the hippocampus’ architecture and functions in more detail. This Special Issue will compile recent evidence and information regarding hippocampal cells at all stages of life during health and disease. Such information will not only enhance our understanding of the hippocampus but also allow us to utilize the hippocampal cells and pathways to treat several neurological disorders.

Dr. Dasiel O. Borroto Escuela
Dr. Aarti Nagayach
Guest Editors

Manuscript Submission Information

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Keywords

  • hippocampal cell physiology
  • microglia
  • astroglia
  • neurodegenerative diseases
  • neurogenesis
  • action potential
  • neuropharmacology
  • neurotransmission

Published Papers (1 paper)

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Research

16 pages, 3362 KiB  
Article
Enhancing Cognitive Functions and Neuronal Growth through NPY1R Agonist and Ketamine Co-Administration: Evidence for NPY1R-TrkB Heteroreceptor Complexes in Rats
by Carlos Arrabal-Gómez, Rasiel Beltran-Casanueva, Aracelis Hernández-García, Juan Vicente Bayolo-Guanche, Miguel Angel Barbancho-Fernández, Pedro Jesús Serrano-Castro and Manuel Narváez
Cells 2024, 13(8), 669; https://doi.org/10.3390/cells13080669 - 12 Apr 2024
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Abstract
This study investigates the combined effects of the neuropeptide Y Y1 receptor (NPY1R) agonist [Leu31-Pro34]NPY at a dose of 132 µg and Ketamine at 10 mg/Kg on cognitive functions and neuronal proliferation, against a backdrop where neurodegenerative diseases present an escalating challenge to [...] Read more.
This study investigates the combined effects of the neuropeptide Y Y1 receptor (NPY1R) agonist [Leu31-Pro34]NPY at a dose of 132 µg and Ketamine at 10 mg/Kg on cognitive functions and neuronal proliferation, against a backdrop where neurodegenerative diseases present an escalating challenge to global health systems. Utilizing male Sprague-Dawley rats in a physiological model, this research employed a single-dose administration of these compounds and assessed their impact 24 h after treatment on object-in-place memory tasks, alongside cellular proliferation within the dorsal hippocampus dentate gyrus. Methods such as the in situ proximity ligation assay and immunohistochemistry for proliferating a cell nuclear antigen (PCNA) and doublecortin (DCX) were utilized. The results demonstrated that co-administration significantly enhanced memory consolidation and increased neuronal proliferation, specifically neuroblasts, without affecting quiescent neural progenitors and astrocytes. These effects were mediated by the potential formation of NPY1R-TrkB heteroreceptor complexes, as suggested by receptor co-localization studies, although further investigation is required to conclusively prove this interaction. The findings also highlighted the pivotal role of brain-derived neurotrophic factor (BDNF) in mediating these effects. In conclusion, this study presents a promising avenue for enhancing cognitive functions and neuronal proliferation through the synergistic action of the NPY1R agonist and Ketamine, potentially via NPY1R-TrkB heteroreceptor complex formation, offering new insights into therapeutic strategies for neurodegenerative diseases. Full article
(This article belongs to the Special Issue A Purview on Hippocampal Cells in Health and Diseases)
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