Biological Mechanisms in the Treatment of Neuropsychiatric Diseases

A special issue of Cells (ISSN 2073-4409). This special issue belongs to the section "Cellular Pathology".

Deadline for manuscript submissions: 31 July 2025 | Viewed by 3050

Special Issue Editors


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Guest Editor
EuMentis Therapeutics, Newton, MA, USA
Interests: neurodevelopmental conditions; rare neurological disease; molecular mechanisms of novel CNS treatments; precision medicine in neuropsychiatry; clinical trials methodology

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Guest Editor
MindImmune Therapeutics, Inc., The George & 6 Anne Ryan Institute for Neuroscience, University of Rhode Island, Kingston, RI 02881, USA
Interests: NMDA; europharmacology

Special Issue Information

Dear Colleagues,

Diseases affecting the nervous system are the leading cause of overall disease burden in the world, affecting 3.4 billion persons. Although research in basic neuroscience has thrived for several decades, interest in applied neurosciences—developing new therapies—has lagged behind until the recent few years, when we have seen a resurgence of commitment to therapeutics development. The urgent need for progress in the understanding of molecular, circuit-related, and genetic causal factors for serious neurological and psychiatric conditions is again attracting the considerable governmental and private investments needed to progress an empirically founded idea into a successful therapeutic.

This Special Issue of Cells focuses on novel methodologies, promising cellular and molecular mechanisms, and treatments that offer hope for patients with a range of disorders and diseases for which there is a considerable need for safer, better tolerated, more effective medical treatments. Successful clinical trials require valid, quantitative outcome measures that are sensitive to the physiologic and biological features of the disease under study. However, limitations in outcome assessment methodology are believed to have hampered the discovery of effective treatments. Advances in the understanding of the molecular mechanisms of genetic diseases have ushered in a renaissance of interest in rare neurological conditions for which, unlike most neuropsychiatric conditions, the pathology is well-characterized and can thus inform rational therapeutic development. The application of precision medicine approaches within highly heterogeneous neuropsychiatric conditions is being pursued as a potentially more successful strategy where the “one size fits all” approach has clearly failed. Moreover, novel methods for preclinical drug screening, which are more relevant to human biology, have come to the fore as potentially more predictive of human safety outcomes.

With this selection of ongoing work in the field, we hope to encourage an optimistic mindset toward the possibility that the following decade will see the creation of many new and better therapies to improve the lives of millions of people with these conditions.

Dr. Randall D Marshall
Dr. Frank S. Menniti
Guest Editors

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Keywords

  • neurodevelopmental conditions
  • rare neurological disease
  • molecular mechanisms of novel CNS treatments
  • precision medicine in neuropsychiatry
  • organoids
  • molecular mechanisms of effective treatments

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Published Papers (2 papers)

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Research

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23 pages, 4274 KiB  
Article
Investigation of the Roles of the Adenosine A(2A) and Metabotropic Glutamate Receptor Type 5 (mGlu5) Receptors in Prepulse Inhibition and CREB Signaling in a Heritable Rodent Model of Psychosis
by Anthony M. Cuozzo, Loren D. Peeters, Cristal D. Ahmed, Liza J. Wills, Justin T. Gass and Russell W. Brown
Cells 2025, 14(3), 182; https://doi.org/10.3390/cells14030182 - 24 Jan 2025
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Abstract
The metabotropic glutamate receptor type 5 (mGlu5) and adenosine A(2A) receptor form a mutually inhibitory heteromer with the dopamine D2 receptor, where the activation of either mGlu5 or A(2A) leads to reduced D2 signaling. This study investigated whether a mGlu5-positive allosteric modulator (PAM) [...] Read more.
The metabotropic glutamate receptor type 5 (mGlu5) and adenosine A(2A) receptor form a mutually inhibitory heteromer with the dopamine D2 receptor, where the activation of either mGlu5 or A(2A) leads to reduced D2 signaling. This study investigated whether a mGlu5-positive allosteric modulator (PAM) or an A(2A) agonist treatment could mitigate sensorimotor gating deficits and alter cyclic AMP response element-binding protein (CREB) levels in a rodent neonatal quinpirole (NQ) model of psychosis. F0 Sprague–Dawley rats were treated with neonatal saline or quinpirole (1 mg/kg) from postnatal day 1 to 21 and bred to produce an F1 generation. F1 offspring underwent prepulse inhibition (PPI) testing from postnatal day 44 to 48 to assess sensorimotor gating. The rats were treated with mGlu5 PAM 3-Cyano-N-(1,3-diphenyl-1H-pyrazol-5-yl) benzamide (CDPPB) or A(2A) agonist CGS21680. Rats with at least one NQ-treated parent showed PPI deficits, which were alleviated by both CDPPB and CGS21680. Sex differences were noted across groups, with CGS21680 showing greater efficacy than CDPPB. Additionally, CREB levels were elevated in the nucleus accumbens (NAc), and both CDPPB and CGS21680 reduced CREB expression to control levels. These findings suggest that targeting the adenosinergic and glutamatergic systems alleviates sensorimotor gating deficits and abnormal CREB signaling, both of which are associated with psychosis. Full article
(This article belongs to the Special Issue Biological Mechanisms in the Treatment of Neuropsychiatric Diseases)
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Review

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41 pages, 4966 KiB  
Review
Neurobiological Mechanisms Underlying Psychological Dysfunction After Brain Injuries
by Prashin Unadkat, Tania Rebeiz, Erum Ajmal, Vincent De Souza, Angela Xia, Julia Jinu, Keren Powell and Chunyan Li
Cells 2025, 14(2), 74; https://doi.org/10.3390/cells14020074 - 8 Jan 2025
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Abstract
Despite the presentation of similar psychological symptoms, psychological dysfunction secondary to brain injury exhibits markedly lower treatment efficacy compared to injury-independent psychological dysfunction. This gap remains evident, despite extensive research efforts. This review integrates clinical and preclinical evidence to provide a comprehensive overview [...] Read more.
Despite the presentation of similar psychological symptoms, psychological dysfunction secondary to brain injury exhibits markedly lower treatment efficacy compared to injury-independent psychological dysfunction. This gap remains evident, despite extensive research efforts. This review integrates clinical and preclinical evidence to provide a comprehensive overview of the neurobiological mechanisms underlying neuropsychological disorders, focusing on the role of key brain regions in emotional regulation across various forms of brain injuries. It examines therapeutic interventions and mechanistic targets, with the primary goal of identifying pathways for targeted treatments. The review highlights promising therapeutic avenues for addressing injury-associated psychological dysfunction, emphasizing Nrf2, neuropeptides, and nonpharmacological therapies as multi-mechanistic interventions capable of modulating upstream mediators to address the complex interplay of factors underlying psychological dysfunction in brain injury. Additionally, it identifies sexually dimorphic factors as potential areas for further exploration and advocates for detailed investigations into sex-specific patterns to uncover additional contributors to these disorders. Furthermore, it underscores significant gaps, particularly the inadequate consideration of interactions among causal factors, environmental influences, and individual susceptibilities. By addressing these gaps, this review provides new insights and calls for a paradigm shift toward a more context-specific and integrative approach to developing targeted therapies for psychological dysfunction following brain injuries. Full article
(This article belongs to the Special Issue Biological Mechanisms in the Treatment of Neuropsychiatric Diseases)
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