Agomelatine could prevent brain and cerebellum injury against LPS-induced neuroinflammation in rats. (March 2020)

• Record Type: Journal Article
• Authors: Savran, M.; Aslankoc, R.; Ozmen, O.; Erzurumlu, Y.; Savas, H.B.; Temel, E.N.; Kosar, P.A.; Boztepe, S.
• Is Part Of: Cytokine. Volume 127(2020)
• Publication Date: 2020-03
• Subjects: Agomelatine -- SIRT-1 -- Inflammation -- Oxidative stress -- Apoptosis; Cytokines -- Periodicals; 571.844
• DOI: 10.1016/j.cyto.2019.154957
• Languages: English
• ISSNs: 1043-4666

Abstract

Highlights: Neuroinflammation, oxidative stress, and apoptosis act in LPS-induced brain damage. Agomelatine has antioxidant, antiinflammatory and antiapoptotic features. Agomelatine effects on platelet count should be invesitigated in further studies. Abstract: Sepsis, systemic hyper-inflammatory immune response, causes the increase of morbidity and mortality rates due to multi-organ diseases such as neurotoxicity. Lipopolysaccharide (LPS) induces inflammation, oxidative stress and apoptosis to cause brain damage. We aimed to evaluate the antioxidant, anti-inflammatory and antiapoptotic effects of Agomelatine (AGM) on LPS induced brain damage via NF-kB signaling. Twenty-four animals were divided into three groups as control, LPS (5 mg/kg) and LPS + AGM (20 mg/kg). Six hours after the all administrations, rats were sacrificed, brain tissues were collected for biochemical, histopathological and immunohistochemical analysis. In LPS group; total oxidant status (TOS), OSI index, Caspase-8 (Cas-8), NF-kß levels increased and Total antioxidant status (TAS) levels decreased biochemically and Cas-8, haptoglobin and IL-10 expressions increased and sirtuin-1 (SIRT-1) levels decreased immunohistochemically. AGM treatment reversed these parameters except haptoglobin levels in hippocampus and SIRT-1 levels in cerebellum. Besides, AGM treatment blocked the phosphorylation of NF-kB biochemically and ameliorated increased the levels of hyperemia, edema and degenerative changes histopathologically. In conclusion, AGM enhanced SIRT-1 levels to negatively regulate the transcription and activation of p-NF-kB/p65 which caused to ameliorate inflammation, oxidative stress and apoptosis.