Involvement of the dopaminergic system in the antidepressant-like effect of the lectin isolated from the red marine alga Solieria filiformis in mice.

Autor: Abreu TM; Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, CE, Brazil., Monteiro VS; Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, CE, Brazil., Martins ABS; Department of Biology, Federal University of Ceará, Fortaleza, CE, Brazil., Teles FB; Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, CE, Brazil., da Conceição Rivanor RL; Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, CE, Brazil., Mota ÉF; Department of Biology, Federal University of Ceará, Fortaleza, CE, Brazil., Macedo DS; Department of Physiology and Pharmacology, Federal University of Ceará, Fortaleza, CE, Brazil; National Institute for Translational Medicine (INCT-TM, CNPq), Ribeirão Preto, Brazil., de Vasconcelos SMM; Department of Physiology and Pharmacology, Federal University of Ceará, Fortaleza, CE, Brazil., Júnior JERH; Department of Physiology and Pharmacology, Federal University of Ceará, Fortaleza, CE, Brazil., Benevides NMB; Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, CE, Brazil. Electronic address: nmbb@ufc.br.
Jazyk: angličtina
Zdroj: International journal of biological macromolecules [Int J Biol Macromol] 2018 May; Vol. 111, pp. 534-541. Date of Electronic Publication: 2017 Dec 28.
DOI: 10.1016/j.ijbiomac.2017.12.132
Abstrakt: This study aimed at evaluating the antidepressant-like action of the marine alga Solieria filiformis lectin (SfL) and to investigate the participation of the monoaminergic system in this action. For this, male Swiss mice (n=10) were pretreated with intravenous injections (i.v.) of SfL (1, 3 or 9mg/kg) and submitted to open field (OFT), tail suspension (TST), forced swimming (FST), elevated plus-maze (EPMT) and hole-board tests (HBT). As controls, mice received sterile saline (i.v.), imipramine (10 or 30mg/kg; intraperitoneally - i.p.) or diazepam (1 mk/kg; i.p.). To assess the involvement of the monoaminergic system in SfL effects, the FST was conducted in mice pretreated with PCPA, an inhibitor of serotonin synthesis, or noradrenergic and dopaminergic receptors specific antagonists. The results showed that SfL has an antidepressant-like effect, with no psychostimulant and anxiolytic-like effects. When denatured or combined with mannan, SfL lost the ability to reduce the immobility time in the FST. In addition, SfL antidepressant-like effect was inhibited by the pretreatment of mice with SCH 23390, a dopamine D 1 receptor antagonist, and by sulpiride, a dopamine D 2 receptor antagonist. Thus, SfL produced an antidepressant-like effect, which is probably dependent on its interaction with the dopaminergic system.
(Copyright © 2017 Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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