期刊
ACTA BIOCHIMICA ET BIOPHYSICA SINICA
卷 53, 期 9, 页码 1142-1153出版社
SCIENCE PRESS
DOI: 10.1093/abbs/gmab100
关键词
omega-3 polyunsaturated fatty acids; lipopolysaccharide; inflammation; NF-kappa B signaling pathways; intestinal microbiota
资金
- key research and development program of Shaanxi province [2019NY-088]
Ω-3 PUFAs have a positive effect on LPS-induced inflammatory response, possibly mediated by the NF-kappa B signaling pathway and the intestinal microbiota.
Omega-3 polyunsaturated fatty acids (n-3 PUFAs), essential fatty acids for humans and animals, have been reported to play a beneficial role in a variety of inflammatory diseases. In this study, we investigated the inhibitory effects and potential molecular mechanisms of n-3 PUFAs on the inflammatory response in lipopolysaccharide (LPS)-stimulated mammary alveolar cell line (MACT). Results showed that n-3 PUFAs could abate LPS-induced secretions of tumor necrosis factor-alpha, interleukin (IL)-6 and IL-1 beta in MAC-T cells through the nuclear transcription factor kappa B (NF-kappa B) signal pathway. Meanwhile, n-3 PUFA intervention attenuated histopathologic changes of mammary glands, the white blood cell number decrease, and the alkaline phosphatase level decrease in the serum of mice challenged by LPS. Furthermore, n-3 PUFA intervention improved the ecological structure of the flora in terms of the structural disorder of the non-significant dominant flora induced by LPS in mice. Collectively, both in vitro and in vivo experiments revealed that n-3 PUFAs have a positive effect on LPS-induced inflammatory response, which was possibly mediated by the NF-kappa B signaling pathway and the intestinal microbiota.
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