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题名: The improved growth performance and enhanced immune function by DL-methionyl-DL-methionine are associated with NF-kappa B and TOR signalling in intestine of juvenile grass carp (Ctenopharyngodon idella)
作者: Su, Yue-Ning1; Wu, Pei1, 2, 3; Feng, Lin1, 2, 3; Jiang, Wei-Dan1, 2, 3; Jiang, Jun1; Zhang, Yong-An4; Figueiredo-Silva, Claudia5; Zhou, Xiao-Qiu1, 2, 3; Liu, Yang1, 2, 3
关键词: DL-Methionyl-DL-methionine ; Intestinal immune ; NF-kappa E signalling ; TOR signalling ; Grass carp (Ctenopharyngodon idella)
刊名: FISH & SHELLFISH IMMUNOLOGY
发表日期: 2018-03-01
DOI: 10.1016/j.fsi.2017.12.051
卷: 74, 页:101-118
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
类目[WOS]: Fisheries ; Immunology ; Marine & Freshwater Biology ; Veterinary Sciences
研究领域[WOS]: Fisheries ; Immunology ; Marine & Freshwater Biology ; Veterinary Sciences
英文摘要: The present study investigated the effects of dietary DL-methionyl-DL-methionine (Met-Met) on growth performance, intestinal immune function and the underlying signalling molecules in juvenile grass carp (Ctenopharyngodon idella). Fish were fed one DL-methionine (DL-Met) group (2.50 g/kg diet) and six graded levels of Met-Met groups (0, 0.79, 1.44, L84, 2.22 and 2.85 g/kg diet) for 10 weeks, and then challenged with Aeromonas hydrophila for 14 days. Results indicated that the optimal Met-Met supplementation: (1) increased fish growth performance, intestinal lysozyme (LZ) and acid phosphatase (ACP) activities, complement (C3 and C4) and immunoglobulin M (IgM) contents, up-regulated hepcidin, liver expressed antimicrobial peptide 2A (LEAP-2A), LEAP-2B, beta-defensin-1 and Mucin2 mRNA levels; (2) down-regulated tumour necrosis factor alpha (TNF-alpha), interferon gamma 2 (IFN-gamma 2), interleukin 1 beta (IL-1 beta), IL-8 [only in the distal intestine (DI)], IL-12p35, IL-12p40 and IL-15 (not IL-17D) mRNA levels partially related to the down-regulation of I kappa B kinase beta (IKK beta) and IKK gamma (rather than IKK alpha), nuclear factor kappa B (NF-kappa B) p65 and c-Rel (rather than NF-kappa B p52) mRNA levels and the up regulation of inhibitor of kappa B alpha (I kappa B alpha) mRNA levels; (3) up-regulated IL-4/13A, IL-4/13B, IL-6, IL-10, IL-11 and transforming growth factor (TGF)-beta 1 (not TGF-beta 2) mRNA levels partially associated with the target of rapamycin (TOR) signalling pathway [TOR/ribosomal protein S6 kinases 1 (S6K1), eIF4E-binding proteins (4E-BP)] in three intestinal segments of juvenile grass carp. These results suggest that Met-Met supplementation improves growth and intestinal immune function in fish. Furthermore, according to a positive effect, the optimal Met-Met supplementation was superior to the optimal DL-Met supplementation at improving the growth performance and enhancing the intestinal immune function in fish. Finally, based on percent weight gain (PWG), protection against enteritis morbidity and immune index (LZ activity), the optimal Met-Met supplementation for juvenile grass carp was estimated as 1.61, 1.64 and 1.68 g/kg diet, respectively, as the basal diet contains 8.03 g/kg total sulfur amino acids (TSAA) (4.26 g methionine/kg and 3.77 g cysteine/kg).
关键词[WOS]: TIGHT JUNCTION PROTEINS ; BREAM MEGALOBRAMA-AMBLYCEPHALA ; DIETARY LYSINE REQUIREMENT ; PHYSICAL BARRIER FUNCTION ; SCOPHTHALMUS-MAXIMUS L. ; SALMON SALMO-SALAR ; KINASE-C-ZETA ; CYPRINUS-CARPIO ; GENE-EXPRESSION ; AEROMONAS-HYDROPHILA
语种: 英语
项目资助者: National Basic Research Program of China (973 Program)(2014CB138600) ; National Natural Science Foundation of China(31572632 ; Outstanding Talents and Innovative Team of Agricultural Scientific Research (Ministry of Agriculture) ; National Department Public Benefit Research Foundation (Agriculture) of China(201003020) ; Specialized Research Fund for the Doctoral Program of Higher Education of China(20135103110001) ; Science and Technology Support Program of Sichuan Province of China(2014NZ0003) ; Evonik Nutrition Care GmbH ; Major Scientific and Technological Achievement Transformation Project of Sichuan Province of China(2012NC0007 ; Demonstration of Major Scientific and Technological Achievement Transformation Project of Sichuan Province of China(2015CC0011) ; Foundation of Sichuan Youth Science and Technology Innovation Research Team(2017TD0002) ; Earmarked Fund for China Agriculture Research System(CARS-45) ; 31672662) ; 2013NC0045)
WOS记录号: WOS:000427344200013
ISSN号: 1050-4648
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内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/50915
Appears in Collections:水生生物分子与细胞生物学研究中心_期刊论文

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作者单位: 1.Sichuan Agr Univ, Anim Nutr Inst, Chengdu 611130, Sichuan, Peoples R China
2.Sichuan Agr Univ, Fish Nutr & Safety Prod Univ Key Lab Sichuan Prov, Chengdu 611130, Sichuan, Peoples R China
3.Sichuan Agr Univ, Minist Educ, Key Lab Anim Dis Resistance Nutr China, Chengdu 611130, Sichuan, Peoples R China
4.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Hubei, Peoples R China
5.Evon Nutr & Care GmbH, NC, 10-B531,Postfach 1345,Rodenbacher Chausse 4, D-63404 Hanau, Germany
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