The DOI matches its Crossref record; 70 of the 72 references it cites were found in a registry or an index.
Decreased glial reactivity could be involved in the antipsychotic-like effect of cannabidiol
Abstract
NMDA receptor hypofunction could be involved, in addition to the positive, also to the negative symptoms and cognitive deficits found in schizophrenia patients. An increasing number of data has linked schizophrenia with neuroinflammatory conditions and glial cells, such as microglia and astrocytes, have been related to the pathogenesis of schizophrenia. Cannabidiol (CBD), a major non-psychotomimetic constituent of Cannabis sativa with anti-inflammatory and neuroprotective properties induces antipsychotic-like effects. The present study evaluated if repeated treatment with CBD (30 and 60 mg/kg) would attenuate the behavioral and glial changes observed in an animal model of schizophrenia based on the NMDA receptor hypofunction (chronic administration of MK-801, an NMDA receptor antagonist, for 28 days). The behavioral alterations were evaluated in the social interaction and novel object recognition (NOR) tests. These tests have been widely used to study changes related to negative symptoms and cognitive deficits of schizophrenia, respectively. We also evaluated changes in NeuN (a neuronal marker), Iba-1 (a microglia marker) and GFAP (an astrocyte marker) expression in the medial prefrontal cortex (mPFC), dorsal striatum, nucleus accumbens core and shell, and dorsal hippocampus by immunohistochemistry. CBD effects were compared to those induced by the atypical antipsychotic clozapine. Repeated MK-801 administration impaired performance in the social interaction and NOR tests. It also increased the number of GFAP-positive astrocytes in the mPFC and the percentage of Iba-1-positive microglia cells with a reactive phenotype in the mPFC and dorsal hippocampus without changing the number of Iba-1-positive cells. No change in the number of NeuN-positive cells was observed. Both the behavioral disruptions and the changes in expression of glial markers induced by MK-801 treatment were attenuated by repeated treatment with CBD or clozapine. These data reinforces the proposal that CBD may induce antipsychotic-like effects. Although the possible mechanism of action of these effects is still unknown, it may involve CBD anti-inflammatory and neuroprotective properties. Furthermore, our data support the view that inhibition of microglial activation may improve schizophrenia symptoms.
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“Finally, both CBD and clozapine prevented the increase in the number of GFAP-positive astrocytes in the mPFC and in the percentage of Iba-1-positive microglia cells with a reactive phenotype in the dorsal hippocampus and mPFCafter repeated administration of MK-801 (71).”
From Translational investigation of the therapeutic potential of Cannabidiol (CBD): Toward a new age (2018) · cites this paper as [71]
In the citing paper
“Confirming the involvement of limbic sites in its antipsychotic effects, CBD blocked PPI impairment induced by amphetamine after direct injection into the nucleus accumbens (71).”
From Translational investigation of the therapeutic potential of Cannabidiol (CBD): Toward a new age (2018) · cites this paper as [71]
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Cannabidiol: State of the art and new challenges for therapeutic applications
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Cannabidiol, neuroprotection and neuropsychiatric disorders
Campos, A. C., Fogaça, M. V., Sonego, A. B., & Guimarães, F. S. (2016) · Pharmacological Research · doi:10.1016/j.phrs.2016.01.033 · Cited by 446
Translational investigation of the therapeutic potential of Cannabidiol (CBD): Toward a new age
Crippa, J. A., Guimarães, F. S., Campos, A. C., & Zuardi, A. W. (2018) · Frontiers in Immunology · doi:10.3389/fimmu.2018.02009 · Cited by 308
García-Gutiérrez, M. S., Navarrete, F., Gasparyan, A., Austrich-Olivares, A., Sala, F., & Manzanares, J. (2020) · Biomolecules · doi:10.3390/biom10111575 · Cited by 306
Metadata
- Authors
- Gomes, F. V., Llorente, R., Del Bel, E. A., Viveros, M.-P., López-Gallardo, M., & Guimarães, F. S.
- Affiliations
- Universidade de São Paulo (BR)
- Universidad Complutense de Madrid (ES)
- Venue
- Schizophrenia Research
- Publisher
- Elsevier BV
- Published
- 2015-05
- Volume
- 164
- Issue
- 1-3
- Pages
- 155-163
- ISSN
- 0920-9964 (ISSN-L)
- OpenAlex
- W2028951205
- Cited by
- 147
- References
- 72
- Citations by year
- 2026: 4 · 2025: 13 · 2024: 15 · 2023: 8 · 2022: 13 · 2021: 24 · 2020: 11 · 2019: 14 · 2018: 15 · 2017: 14 · 2016: 12 · 2015: 4
- FWCI
- 10.86
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Schizophrenia Research (publishedVersion)
- PubMed (publishedVersion)
- Library Open Repository (Universidad Complutense Madrid) (submittedVersion)
- Funders
- FAPESP (012/17626-7)
- CNPq (470311/2012-6)
- Instituto de Salud Carlos III, Redes temáticas de Investigación Cooperativa en salud (RD2012/0028/0021)
- Topics
- Health Sciences › Medicine › Pharmacology (medical) › Cannabis and Cannabinoid Research
- Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
- Life Sciences › Neuroscience › Biological Psychiatry › Tryptophan and brain disorders
- Keywords
- cannabidiol, schizophrenia
- MeSH terms
- Animals, Brain, Calcium-Binding Proteins, Cannabidiol, Clozapine, Disease Models, Animal, Dose-Response Relationship, Drug, Exploratory Behavior, Gene Expression Regulation, Glial Fibrillary Acidic Protein, Male, Mice, Inbred C57BL, Microfilament Proteins, Neuroglia, Phosphopyruvate Hydratase, Psychotic Disorders, Antipsychotic Agents, Dizocilpine Maleate, Excitatory Amino Acid Antagonists, Maze Learning, Recognition, Psychology, Mice
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