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Quetiapine effect on depressive-like behaviors, oxidative balance, and inflammation in serum of rats submitted to chronic stress

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Abstract

Major depressive disorder (MDD) etiology is still not completely understood, and many individuals resist the traditional treatments. Chronic exposure to stressful events can contribute to development and progression and be involved in biological changes underlying MDD. Among the biological mechanisms involved, inflammatory changes and oxidative balance are associated with MDD pathophysiology. Quetiapine, a second-generation antipsychotic, induces a better therapeutic response in individuals refractory to traditional treatments. The main objectives of this research were as follows: to evaluate the effect of chronic mild stress (CMS) on depressive-like behaviors, oxidative stress, and inflammation in adult rats; to evaluate the possible antidepressant, antioxidant, and anti-inflammatory effects of quetiapine. The animals were submitted to CMS protocols. At the end of the CMS, the animals were submitted to a chronic treatment for 14 days with the following drugs: quetiapine (20 mg/kg), imipramine (30 mg/kg), and escitalopram (10 mg/kg). At the end of the treatments, the animals were evaluated in the open field tests, anhedonia (splash test), and forced swimming. The animals were euthanized after the behavioral tests, and serum samples were collected. Myeloperoxidase (MPO) activity and interleukin-6 (IL-6) levels were analyzed. CMS induced an increase in depressive-like behaviors, and quetiapine significantly reduced these behaviors. MPO activity and IL-6 levels increased in the serum of animals submitted to CMS. Quetiapine significantly reduced MPO activity and IL-6 levels. These results corroborate other evidence, indicating that chronic stress is a relevant phenomenon in the etiology of depression and suggesting that quetiapine induces an antidepressant effect because it reduces oxidative and inflammatory mechanisms.

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Data availability

All data are available in the main text.

Abbreviations

ANOVA:

Analysis of variance

COBEA:

Brazilian College of Animal Experimentation

CRP:

C-reactive protein

CMS:

Chronic mild stress

DNA:

Deoxyribonucleic acid

CEUA:

Ethics Committee on the Use of Animals

UFFS:

Federal University of Fronteira Sul

HClO:

Hypochlorous acid

HPA:

Hypothalamic-pituitary-adrenal

IDO:

Indoleamine-2,3-dioxygenase

IL-1β:

Interleukin 1 beta

IL-6:

Interleukin 6

MDD:

Major depressive disorder

MPO:

Myeloperoxidase

NMDA:

N-methyl-D-aspartate

PFC:

Prefrontal cortex

ROS:

Reactive oxygen species

TNF-α:

Tumor necrosis factor-α

WHO:

World Health Organization

References

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Funding

This research was supported by grants from the Research and Innovation Support Foundation of Santa Catarina State (FAPESC) (ZMI), which made this research possible through the FAPESC/CNPq Public Call Notice No. 06/2016—Support for CTI Infrastructure for Young Researchers. Translational Psychiatry Laboratory (Brazil), Laboratory of Physiology Pharmacology and Psychopathology, and Laboratory of Cell Culture are funded by grants from the National Council for Scientific and Technological Development (CNPq) (MDB, ZMI, and GZR) and Research and Innovation Support Foundation of Santa Catarina State (FAPESC) (MDB, ZMI, and GZR), the University of Southern Santa Catarina (GZR), and the Federal University of Fronteira Sul (ZMI and MDB). MDB and GZR are 2 CNPq Research Fellows. JQ is a 1A CNPq Research Fellow.

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Authors and Affiliations

Authors

Contributions

Roberta Eduarda Grolli: investigation, visualization, writing—original draft. Amanda Gollo Bertollo: investigation, writing—original Draft. João Paulo Behenck: investigation. Laura de Araujo Borba: investigation. Marcos Eduardo Plissari: investigation. Silvio José Batista Soares: investigation. Aline Manica: biochemical analyses. Larissa da Silva Joaquim: biochemical analyses. Fabricia Petronilho: biochemical analyses. João Quevedo: project administration. Margarete Dulce Bagatini: resources, biochemical analyses. Gislaine Zilli Réus: resources, writing—original draft. Zuleide Maria Ignácio: project administration, resources, funding acquisition, methodology.

Corresponding author

Correspondence to Zuleide Maria Ignácio.

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Ethics approval

All experimental procedures involving the use of animals were performed following the ethical principles governed by the Brazilian College of Animal Experimentation (COBEA) and after approval by the Federal University of Fronteira Sul (UFFS) Ethics Committee on the Use of Animals (CEUA-UFFS), protocol number 23205.004257/2017–96.

Competing interests

The authors declare no competing interests.

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Grolli, R.E., Bertollo, A.G., Behenck, J.P. et al. Quetiapine effect on depressive-like behaviors, oxidative balance, and inflammation in serum of rats submitted to chronic stress. Naunyn-Schmiedeberg's Arch Pharmacol 396, 1423–1433 (2023). https://doi.org/10.1007/s00210-023-02406-8

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  • DOI: https://doi.org/10.1007/s00210-023-02406-8

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