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Protective effects of orally administered shark compound peptides from Chiloscyllium plagiosum against acute
Tong-Xin Wang1, Dong-Yan Shen2, Qin Wang1
1Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, School of Life Sciences, Xiamen University, Xiamen, China.
Abstract:
The anti-inflammatory effects of shark compound peptides (SCP) from Chiloscyllium plagiosum were investigated. Results showed that SCP enhanced the viability of RAW 264.7 macrophages in vitro in a dose-dependent manner. Orally administered SCP exhibited potent anti-inflammatory activity in lipopolysaccharide (LPS)-challenged mice by suppressing serum levels of tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6), interleukin-8 (IL-8), as well as nitric oxide (NO). Moreover, SCP significantly inhibited the inflammatory rise of alanine aminotransferase (ALT), aspartate aminotransferase (AST), alkaline phosphatase (ALP), lactate dehydrogenase (LDH), and creatinine (CRE), while blocking the decline of cholinesterase (CHE), with an efficacy close to aspirin. This research showed that orally administered SCP from C. plagiosum notably downregulated uncontrolled inflammatory responses, and conferred substantial protection from endotoxin-induced acute hepatic damage and renal functional impairment. Therefore, oral supplementation of SCP can be used as a preventive approach to reduce the risk of inflammatory-related diseases.
