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Jian M, Chen X, Liu S, Liu Y, Liu Y, Wang Q, Tu W. Combined exposure with microplastics increases the toxic effects of PFOS and its alternative F-53B in adult zebrafish. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 920:170948. [PMID: 38365036 DOI: 10.1016/j.scitotenv.2024.170948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Revised: 02/08/2024] [Accepted: 02/11/2024] [Indexed: 02/18/2024]
Abstract
Microplastics (MPs) can adsorb and desorb organic pollutants, which may alter their biotoxicities. Although the toxicity of perfluorooctane sulfonate (PFOS) and its alternative 6:2 chlorinated polyfluorinated ether sulfonate (F-53B) to organisms has been reported, the comparative study of their combined toxic effects with MPs on aquatic organisms is limited. In this study, adult female zebrafish were exposed to 10 μg/L PFOS/F-53B and 50 μg/L MPs alone or in combination for 14 days to investigate their single and combined toxicities. The results showed that the presence of MPs reduced the concentration of freely dissolved PFOS and F-53B in the exposure solution but did not affect their bioaccumulation in the zebrafish liver and gut. The combined exposure to PFOS and MPs had the greatest impact on liver oxidative stress, immunoinflammatory, and energy metabolism disorders. 16S rRNA gene sequencing analysis revealed that the combined exposure to F-53B and MPs had the greatest impact on gut microbiota. Functional enrichment analysis predicted that the alternations in the gut microbiome could interfere with signaling pathways related to immune and energy metabolic processes. Moreover, significant correlations were observed between changes in gut microbiota and immune and energy metabolism indicators, highlighting the role of gut microbiota in host health. Together, our findings demonstrate that combined exposure to PFOS/F-53B and MPs exacerbates liver immunotoxicity and disturbances in energy metabolism in adult zebrafish compared to single exposure, potentially through dysregulation of gut microbiota.
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Affiliation(s)
- Minfei Jian
- College of Life Science, Jiangxi Normal University, Nanchang 330022, China
| | - Xi Chen
- College of Life Science, Jiangxi Normal University, Nanchang 330022, China; Institute of Microbiology, Jiangxi Academy of Sciences, Nanchang 330096, China
| | - Shuai Liu
- Institute of Microbiology, Jiangxi Academy of Sciences, Nanchang 330096, China.
| | - Yingxin Liu
- Institute of Microbiology, Jiangxi Academy of Sciences, Nanchang 330096, China; School of New Energy Science and Engineering, Xinyu University, Xinyu 338004, China
| | - Yu Liu
- Institute of Microbiology, Jiangxi Academy of Sciences, Nanchang 330096, China
| | - Qiyu Wang
- Institute of Microbiology, Jiangxi Academy of Sciences, Nanchang 330096, China
| | - Wenqing Tu
- School of Land Resources and Environment, Jiangxi Agricultural University, Nanchang 330045, China.
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2
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Li J, Zhao M, Zhang X, Zheng Z, Yao D, Yang S, Chen T, Zhang Y, Aweya JJ. The evolutionary adaptation of shrimp hemocyanin subtypes and the consequences on their structure and functions. FISH & SHELLFISH IMMUNOLOGY 2024; 145:109347. [PMID: 38160900 DOI: 10.1016/j.fsi.2023.109347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 12/22/2023] [Accepted: 12/27/2023] [Indexed: 01/03/2024]
Abstract
Hemocyanin is the main respiratory protein of arthropods and is formed by hexameric and/or oligomeric subunits. Due to changes in the living environment and gene rearrangement, various hemocyanin subtypes and subunits evolved in crustaceans. This paper reviews the various hemocyanin subtypes and isoforms in shrimp and analyses published genomic data of sixteen hemocyanin family genes from Litopenaeus vannamei to explore the evolution of hemocyanin genes, subunits, and protein structure. Analysis of hemocyanin subtypes distribution and structure in various tissues was also performed and related to multiple and tissue-specific functions, i.e., immunological activity, immune signaling, phenoloxidase activity, modulation of microbiota homeostasis, and energy metabolism. The functional diversity of shrimp hemocyanin due to molecular polymorphism, transcriptional regulation, alternative splicing, degradation into functional peptides, interaction with other proteins or genes, and structural differences will also be highlighted for future research. Inferences would be drawn from other crustaceans to explain how evolution has changed the structure-function of hemocyanin and its implication for evolutionary research into the multifunctionality of hemocyanin and other related proteins in shrimp.
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Affiliation(s)
- Jiaxi Li
- Guangdong Provincial Key Laboratory of Marine Biotechnology, Institute of Marine Sciences, Shantou University, Shantou, 515063, China
| | - Mingming Zhao
- Guangdong Provincial Key Laboratory of Marine Biotechnology, Institute of Marine Sciences, Shantou University, Shantou, 515063, China
| | - Xin Zhang
- Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, China
| | - Zhihong Zheng
- Guangdong Provincial Key Laboratory of Marine Biotechnology, Institute of Marine Sciences, Shantou University, Shantou, 515063, China
| | - Defu Yao
- Guangdong Provincial Key Laboratory of Marine Biotechnology, Institute of Marine Sciences, Shantou University, Shantou, 515063, China
| | - Shen Yang
- Fujian Provincial Key Laboratory of Food Microbiology and Enzyme Engineering, College of Ocean Food and Biological Engineering, Jimei University, Xiamen, 361021, China
| | - Ting Chen
- Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, China
| | - Yueling Zhang
- Guangdong Provincial Key Laboratory of Marine Biotechnology, Institute of Marine Sciences, Shantou University, Shantou, 515063, China.
| | - Jude Juventus Aweya
- Fujian Provincial Key Laboratory of Food Microbiology and Enzyme Engineering, College of Ocean Food and Biological Engineering, Jimei University, Xiamen, 361021, China.
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Tang E, Hu T, Jiang Z, Shen X, Lin H, Xian H, Wu X. Isoquercitrin alleviates lipopolysaccharide-induced intestinal mucosal barrier damage in mice by regulating TLR4/MyD88/NF-κB signaling pathway and intestinal flora. Food Funct 2024; 15:295-309. [PMID: 38084034 DOI: 10.1039/d3fo03319h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
Intestinal mucosal barrier damage is closely associated with the development of several intestinal inflammatory diseases. Isoquercitrin (IQ) is a natural flavonoid compound derived from plants, which exhibits high antioxidant and anti-inflammatory activity with minimal side effects in humans. Therefore, it shows great potential for preventing and treating intestinal mucosal barrier damage. This study aims to investigate the ameliorative effect and mechanism of IQ on lipopolysaccharide (LPS)-induced intestinal mucosal barrier damage in mice. The mice were treated with IQ for 7 days and then injected with LPS to induce intestinal mucosal barrier damage. The results revealed that IQ treatment alleviated LPS-induced intestinal mucosal barrier damage in mice, which can be evidenced by the improvements in intestinal morphology and the promotion of expression in intestinal tight junctions (ZO-1, Claudin-1, and Occludin), as well as MUC2 mucin. IQ also attenuated intestinal inflammatory responses by inhibiting the TLR4/MyD88/NF-κB signaling pathway and reducing the expression and plasma levels of IL-6, IL-1β, and TNF-α. Furthermore, IQ significantly increased the relative abundance of beneficial bacteria, including Dubosiella, Akkermansia muciniphila and Faecalibaculum rodentium, while suppressing the growth of harmful bacteria such as Mucispirillum schaedleri in the intestinal flora of mice. Consequently, IQ can alleviate the LPS-induced intestinal mucosal barrier damage in mice by inhibiting the TLR4/MyD88/NF-κB signaling pathway and modulating the intestinal flora.
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Affiliation(s)
- Enhui Tang
- School of Public Health, Guangzhou Medical University, Guangzhou 511436, China.
| | - Tong Hu
- School of Public Health, Guangzhou Medical University, Guangzhou 511436, China.
| | - Zhaokang Jiang
- School of Public Health, Guangzhou Medical University, Guangzhou 511436, China.
| | - Xiaojun Shen
- School of Public Health, Guangzhou Medical University, Guangzhou 511436, China.
| | - Huan Lin
- School of Public Health, Guangzhou Medical University, Guangzhou 511436, China.
| | - Haiyan Xian
- School of Public Health, Guangzhou Medical University, Guangzhou 511436, China.
| | - Xinlan Wu
- School of Public Health, Guangzhou Medical University, Guangzhou 511436, China.
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4
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Wang C, Han W, Cheng W, Liu D, Wang W, Yan B, Gao H, Hu G. Impact of Ocean Acidification on the Gut Histopathology and Intestinal Microflora of Exopalaemon carinicauda. Animals (Basel) 2023; 13:3299. [PMID: 37894023 PMCID: PMC10603730 DOI: 10.3390/ani13203299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 10/14/2023] [Accepted: 10/19/2023] [Indexed: 10/29/2023] Open
Abstract
Marine crustaceans are severely threatened by environmental factors such as ocean acidification, but, despite the latter's negative impact on growth, molting, and immunity, its effects on intestinal microflora remain poorly understood. This work studied the gut morphology and intestinal microflora of Exopalaemon carinicauda, grown in seawater of different pH levels: 8.1 (control group), 7.4 (AC74 group), and 7.0 (AC70 group). Ocean acidification was found to cause intestinal damage, while significantly altering the microflora's composition. However, the α-diversity did not differ significantly between the groups. At the phylum level, the relative abundance of Proteobacteria decreased in the acidification groups, while at the genus level, the relative abundance of Sphingomonas decreased. Babeliales was a prominent discriminative biomarker in the AC74 group, with Actinobacteriota, Micrococcales, Beijerinckiaceae, Methylobacterium, and Flavobacteriales being the main ones in the AC70 group. The function prediction results also indicated an enrichment of pathways related to metabolism for the acidification groups. At the same time, those related to xenobiotics' biodegradation and metabolism were inhibited in AC74 but enhanced in AC70. This is the first study examining the impact of ocean acidification on the intestinal microflora of crustaceans. The results are expected to provide a better understanding of the interactions between shrimp and their microflora in response to environmental stressors.
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Affiliation(s)
- Chao Wang
- Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, Lianyungang 222005, China; (C.W.); (W.H.); (W.C.); (D.L.); (W.W.); (B.Y.); (H.G.)
| | - Wanyu Han
- Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, Lianyungang 222005, China; (C.W.); (W.H.); (W.C.); (D.L.); (W.W.); (B.Y.); (H.G.)
| | - Weitao Cheng
- Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, Lianyungang 222005, China; (C.W.); (W.H.); (W.C.); (D.L.); (W.W.); (B.Y.); (H.G.)
| | - Dexue Liu
- Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, Lianyungang 222005, China; (C.W.); (W.H.); (W.C.); (D.L.); (W.W.); (B.Y.); (H.G.)
| | - Weili Wang
- Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, Lianyungang 222005, China; (C.W.); (W.H.); (W.C.); (D.L.); (W.W.); (B.Y.); (H.G.)
| | - Binlun Yan
- Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, Lianyungang 222005, China; (C.W.); (W.H.); (W.C.); (D.L.); (W.W.); (B.Y.); (H.G.)
- Co-Innovation Center of Jiangsu Marine Bio-Industry Technology, Jiangsu Ocean University, Lianyungang 222005, China
| | - Huan Gao
- Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, Lianyungang 222005, China; (C.W.); (W.H.); (W.C.); (D.L.); (W.W.); (B.Y.); (H.G.)
- Co-Innovation Center of Jiangsu Marine Bio-Industry Technology, Jiangsu Ocean University, Lianyungang 222005, China
| | - Guangwei Hu
- Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, Lianyungang 222005, China; (C.W.); (W.H.); (W.C.); (D.L.); (W.W.); (B.Y.); (H.G.)
- Co-Innovation Center of Jiangsu Marine Bio-Industry Technology, Jiangsu Ocean University, Lianyungang 222005, China
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Kong L, Ma J, Zhou S, Lin H, Long Z, Qin H, Liu L, Lin Y, Huang Z, Li Z. Effects of dietary Clostridium butyricum on the growth performance, digestion, and intestinal health of spotted sea bass ( Lateolabrax maculatus). Front Immunol 2023; 14:1181471. [PMID: 37520524 PMCID: PMC10380941 DOI: 10.3389/fimmu.2023.1181471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 06/26/2023] [Indexed: 08/01/2023] Open
Abstract
Clostridium butyricum (CB) is known to promote growth, enhance immunity, promote digestion, and improve intestinal health. In this study, we investigated the effects of CB in the feed on growth performance, digestion, and intestinal health of juvenile spotted sea bass. To provide a theoretical basis for the development and application of CB in the feed of spotted sea bass, a total of 450 spotted sea bass with an initial body weight of (9.58 ± 0.05) g were randomly divided into six groups. Gradient levels with 0, 0.1%, 0.2%, 0.3%, 0.4%, and 0.5% of CB (1×109 cfu/g) were supplemented into diets, designated as CC, CB1, CB2, CB3, CB4, and CB5, respectively. Each group was fed for 54 days. Our results suggest that dietary 0.2% and 0.3% of CB can significantly increase the weight gain (WG) and specific growth rate (SGR) of spotted sea bass. The addition of CB significantly increased intestinal amylase activity, intestinal villus length, intestinal villus width, and intestinal muscle thickness. Similarly, CB supplementation increased the expression of tumor necrosis factor-α (TNF-α) and interleukin-8 (IL-8). Sequence analysis of the bacterial 16S rDNA region showed that dietary CB altered the intestinal microbiota profile of juvenile spotted sea bass, increasing the dominant bacteria in the intestine and decreasing the harmful bacteria. Overall, dietary addition of CB can improve growth performance, enhance intestinal immunity, improve intestinal flora structure, and comprehensively improve the health of spotted sea bass.
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Affiliation(s)
- Lumin Kong
- Fisheries College, Jimei University, Xiamen, China
- Fisheries College of Jimei University, Fujian Provincial Key Laboratory of Marine Fishery Resources and Eco-environment, Xiamen, China
| | - Jianrong Ma
- Fisheries College, Jimei University, Xiamen, China
- Fisheries College of Jimei University, Fujian Provincial Key Laboratory of Marine Fishery Resources and Eco-environment, Xiamen, China
| | - Sishun Zhou
- Fisheries College, Jimei University, Xiamen, China
- Fisheries College of Jimei University, Fujian Provincial Key Laboratory of Marine Fishery Resources and Eco-environment, Xiamen, China
| | - Hao Lin
- Fisheries College, Jimei University, Xiamen, China
- Fisheries College of Jimei University, Fujian Provincial Key Laboratory of Marine Fishery Resources and Eco-environment, Xiamen, China
| | - Zhongying Long
- Fisheries College, Jimei University, Xiamen, China
- Fisheries College of Jimei University, Fujian Provincial Key Laboratory of Marine Fishery Resources and Eco-environment, Xiamen, China
| | - Huihui Qin
- Fisheries College, Jimei University, Xiamen, China
- Fisheries College of Jimei University, Fujian Provincial Key Laboratory of Marine Fishery Resources and Eco-environment, Xiamen, China
| | - Longhui Liu
- Fisheries College, Jimei University, Xiamen, China
- Fisheries College of Jimei University, Fujian Provincial Key Laboratory of Marine Fishery Resources and Eco-environment, Xiamen, China
| | - Yi Lin
- Fisheries College, Jimei University, Xiamen, China
- Fisheries College of Jimei University, Fujian Provincial Key Laboratory of Marine Fishery Resources and Eco-environment, Xiamen, China
| | - Zhangfan Huang
- Fisheries College, Jimei University, Xiamen, China
- Fisheries College of Jimei University, Fujian Provincial Key Laboratory of Marine Fishery Resources and Eco-environment, Xiamen, China
| | - Zhongbao Li
- Fisheries College, Jimei University, Xiamen, China
- Fisheries College of Jimei University, Fujian Provincial Key Laboratory of Marine Fishery Resources and Eco-environment, Xiamen, China
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Lu W, Yu H, Liang Y, Zhai S. Evaluation of Methanotroph ( Methylococcus capsulatus, Bath) Bacteria Protein as an Alternative to Fish Meal in the Diet of Juvenile American Eel ( Anguilla rostrata). Animals (Basel) 2023; 13:ani13040681. [PMID: 36830467 PMCID: PMC9952290 DOI: 10.3390/ani13040681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 02/10/2023] [Accepted: 02/13/2023] [Indexed: 02/18/2023] Open
Abstract
This study was conducted to evaluate the effects of replacing fish meal (FM) with methanotroph (Methylococcus capsulatus, Bath) bacteria protein (MBP) in the diets of the juvenile American eel (Anguilla rostrata). Trial fish were randomly divided into the MBP0 group, MBP6 group, MBP12 group, and MBP18 group fed the diets with MBP replacing FM at levels of 0, 6%, 12%, and 18%, respectively. The trial lasted for ten weeks. There were no significant differences in weight gain or feed utilization among the MBP0, MBP6, and MBP12 groups (except for the feeding rate in the MBP12 group). Compared with the MBP0 group, the D-lactate level and diamine oxidase activity in the serum were significantly elevated in the MBP12 and MBP18 groups. In terms of non-specific immunity parameters in serum, the alkaline phosphatase activity was significantly decreased in the MBP18 group, and the complement 3 level was significantly elevated in the MBP12 and MBP18 groups. The activities of lipase and protease in the intestine were significantly decreased in the MBP12 and MBP18 groups. Compared with the MBP0 group, the total antioxidant capacity and activities of superoxide dismutase, catalase, and glutathione peroxidase in the intestine were significantly decreased in the MBP18 group, while the malondialdehyde level was significantly increased. The villus height, muscular thickness, and microvillus density were significantly decreased in the MBP12 and MBP18 groups. There were no significant differences in the foresaid parameters between the MBP0 group and the MBP6 group. The intestinal microbiota of the MBP6 group was beneficially regulated to maintain similar growth and health status with the MBP0 group. The adverse effects on the intestinal microbiota were reflected in the MBP18 group. In conclusion, MBP could successfully replace 6% of FM in the diet without adversely affecting the growth performance, serum biochemical parameters, and intestinal health of juvenile American eels.
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Affiliation(s)
- Wenqi Lu
- Engineering Research Center of the Modern Industry Technology for Eel, Ministry of Education, Fisheries College of Jimei University, Xiamen 361021, China
| | - Haixia Yu
- Engineering Research Center of the Modern Industry Technology for Eel, Ministry of Education, Fisheries College of Jimei University, Xiamen 361021, China
| | - Ying Liang
- Engineering Research Center of the Modern Industry Technology for Eel, Ministry of Education, Fisheries College of Jimei University, Xiamen 361021, China
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture and Rural Affairs, Jimei University, Xiamen 361021, China
| | - Shaowei Zhai
- Engineering Research Center of the Modern Industry Technology for Eel, Ministry of Education, Fisheries College of Jimei University, Xiamen 361021, China
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture and Rural Affairs, Jimei University, Xiamen 361021, China
- Correspondence: ; Tel.: +86-592-6181420
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Yan Z, Zhu L, Hou C, Zheng Y, Guo H, Shi L, Tan B, Zhang S. The enhancement effect of low-dose dietary lipopolysaccharide on the growth and immunity of Litopenaeus vannamei, and transcriptome analysis. FISH & SHELLFISH IMMUNOLOGY 2023; 133:108517. [PMID: 36603789 DOI: 10.1016/j.fsi.2023.108517] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 12/04/2022] [Accepted: 01/01/2023] [Indexed: 06/17/2023]
Abstract
In this study, the effects of dietary lipopolysaccharide (LPS) on Litopenaeus vannamei were investigated to determine whether LPS could play a role as a potential immunostimulant in shrimp. L. vannamei with an initial body weight of 0.30 ± 0.02 g were fed a diet containing LPS at doses of 0, 0.2, 1, 5, 25 or 125 mg kg-1 for eight weeks (groups LPS0, LPS0.2, LPS1, LPS5, LPS25 and LPS125, respectively). After eight weeks of feeding, the growth performance, immunity and transcriptome response of L. vannamei were analysed. Only dietary LPS at 0.2 and 1 mg kg-1 resulted in a significant increase in the growth of L. vannamei (P < 0.05). According to the weight gain rate (WGR) and specific growth rate (SGR), the optimum dietary LPS level was 2.462 and 2.455 mg kg-1, respectively. When compared with the control group, the survival rate (SR) of L. vannamei in the LPS0.2 group was significantly increased after white spot syndrome virus (WSSV) infection and the SR of L. vannamei in the LPS1 group was significantly increased after Vibrio parahaemolyticus infection (both P < 0.05). Compared with the LPS0 group, immune enzyme activity in the serum of L. vannamei could be significantly increased and the content of maleic dialdehyde (MDA) significantly decreased by dietary LPS. Transcriptome analysis of the haemocytes of L. vannamei identified 399 up-regulated differentially expressed genes (DEGs) and 5000 down-regulated DEGs in the LPS0.2 compared to the control group. Most of the DEGs were significantly enriched in the following pathways: phosphatidylinositol signalling, Wnt signalling, Jak-STAT signalling and inositol phosphate metabolism. In conclusion, this study revealed that diets supplemented with low-dose LPS had positive effects on the growth and immunity of L. vannamei.
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Affiliation(s)
- Zhao Yan
- College of Fisheries, Guangdong Ocean University, Zhanjiang, China
| | - Lulu Zhu
- College of Fisheries, Guangdong Ocean University, Zhanjiang, China
| | - Cuihong Hou
- College of Fisheries, Guangdong Ocean University, Zhanjiang, China
| | - Yudong Zheng
- College of Fisheries, Guangdong Ocean University, Zhanjiang, China
| | - Hui Guo
- College of Fisheries, Guangdong Ocean University, Zhanjiang, China
| | - Lili Shi
- College of Fisheries, Guangdong Ocean University, Zhanjiang, China
| | - Beiping Tan
- College of Fisheries, Guangdong Ocean University, Zhanjiang, China; Key Laboratory of Aquatic, Livestock and Poultry Feed Science and Technology in South China, Ministry of Agriculture, Zhanjiang, China; Aquatic Animals Precision Nutrition and High Efficiency Feed Engineering Research Center of Guangdong Province, Zhanjiang, China
| | - Shuang Zhang
- College of Fisheries, Guangdong Ocean University, Zhanjiang, China; Key Laboratory of Aquatic, Livestock and Poultry Feed Science and Technology in South China, Ministry of Agriculture, Zhanjiang, China; Aquatic Animals Precision Nutrition and High Efficiency Feed Engineering Research Center of Guangdong Province, Zhanjiang, China.
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Yan A, Ding H, Liu J, Bi C, Han Z, Wang Z, Nawaz S, Shen Y, Liu S. Black Lycium barbarum polysaccharide attenuates LPS-induced intestine damage via regulation gut microbiota. Front Microbiol 2023; 13:1080922. [PMID: 36741888 PMCID: PMC9893023 DOI: 10.3389/fmicb.2022.1080922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Accepted: 12/08/2022] [Indexed: 01/20/2023] Open
Abstract
Lycium barbarums are traditionally used as a homology of medicinal plants in China with a potent role in metabolism and immunomodulation. The current study was performed to explore the attenuation effect and microbiota regulation of Lycium barbarum polysaccharide (BLBP) on lipopolysaccharide (LPS)-induced intestine damage in mice. A total of 70 mice were randomly divided into five groups; negative control (GA), LPS (GB), both treated with an equal volume of normal saline, and BLBP treatment groups GC (100 mg/kg), GD (200 mg/kg), and GE (400 mg/kg) via gavage for 19 days. On Day 19, mice in groups GB, GC, GD, and GE were treated with 10 mg/kg LPS for 24 h and euthanized to collect intestine samples for pathological examination and microbiota sequencing. The results showed a non-significant difference in body weight gain among the five mouse groups; however, mice in the GC and GE groups showed decreased weight gain. An H&E examination revealed that the integrity of intestinal villi was destroyed by LPS, while BLBP supplement alleviated intestinal damage with an increase in villus height and a decrease in crypt depth. A total of over 59,000, 40,000, 50,000, 45,000, and 55,000 raw sequences were found in groups GA, GB, GC, GD, and GE, respectively. LPS challenge decreased alpha diversity indexes significantly (p < 0.05), while a non-significant difference was found between different BLBP treatment groups and the GA group. A total of 8 phyla and 13 genera were found among five mouse groups, and BLBP partly restored the bacterial abundance in mice. LPS changed 282 metabolic pathways in KEGG L2, 77 metabolic pathways in KEGG L3, and 205 metabolic pathways in MetaCyc, respectively. The BLBP-supplemented groups, especially GE, showed reverse effects on those metabolic pathways. The current study revealed that BLBP can effectively decrease intestinal damage through the regulation of intestinal microbiota, which may provide new insights for the prevention of intestinal disease using food and medicine homologous of Lycium ruthenicum.
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Affiliation(s)
- An Yan
- College of Animal Science and Technology, Hebei Agricultural University, Baoding, Hebei, China
| | - Houkang Ding
- College of Veterinary Medicine/Traditional Chinese Veterinary Medicine, Hebei Agriculture University, Baoding, China
| | - Junjun Liu
- College of Veterinary Medicine/Traditional Chinese Veterinary Medicine, Hebei Agriculture University, Baoding, China
| | - Chongliang Bi
- College of Agriculture and Forestry, Linyi University, Linyi, Shandong, China
| | - Zhaoqing Han
- College of Agriculture and Forestry, Linyi University, Linyi, Shandong, China
| | - Zhennan Wang
- College of Agriculture and Forestry, Linyi University, Linyi, Shandong, China
| | - Shah Nawaz
- Department of Anatomy, Faculty of Veterinary Science, University of Agriculture, Faisalabad, Pakistan
| | - Yizhao Shen
- College of Animal Science and Technology, Hebei Agricultural University, Baoding, Hebei, China,Key Laboratory of Healthy Breeding in Dairy Cattle (Co-Construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Baoding, Hebei, China,*Correspondence: Yizhao Shen,
| | - Shudong Liu
- College of Animal Science and Technology, Hebei Agricultural University, Baoding, Hebei, China,Shudong Liu,
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Fang H, Zhuang Z, Huang L, Niu J, Zhao W. A Newly Isolated Strain of Haematococcus pluvialis GXU-A23 Improves the Growth Performance, Antioxidant and Anti-Inflammatory Status, Metabolic Capacity and Mid-intestine Morphology of Juvenile Litopenaeus vannamei. Front Physiol 2022; 13:882091. [PMID: 35547591 PMCID: PMC9081789 DOI: 10.3389/fphys.2022.882091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Accepted: 04/06/2022] [Indexed: 11/13/2022] Open
Abstract
Haematococcus pluvialis can be used as a green additive in aquafeeds due to it contains rich astaxanthin and polyunsaturated fatty acid. In the present study, a newly strain of H. pluvialis GXU-A23 with high concentration of astaxanthin was firstly isolated by a newly culture strategy in our laboratory. In addition, H. pluvialis GXU-A23 was applied in the Litopenaeus vannamei feed for determining whether it has positive effects on the growth performance, antioxidant and anti-inflammatory status, metabolic capacity and mid-intestine morphology of juvenile L. vannamei. Shrimp with 0.63 g approximately initial body weight were fed diets supplemented with/without 50 g/kg H. pluvialis GXU-A23. After 8 weeks feeding intervention, significantly higher growth performance of L. vannamei was obtained in the H. pluvialis GXU-A23 treatment group compared to the control group (p < 0.05). At the same time, L. vannamei fed with H. pluvialis GXU-A23 acquired significantly better antioxidant and anti-inflammatory status than the control group (p < 0.05). In addition, higher RNA expression level of hepatopancreas digestive enzyme, hepatopancreas lipid and glucose metabolic enzymes as well as better mid-intestine morphology were found in the H. pluvialis GXU-A23 treatment group than the control group (p < 0.05). These results indicated that 50 g/kg H. pluvialis GXU-A23 was suitable for the L. vannamei feed, which could improve the growth performance, antioxidant and anti-inflammatory status, metabolic capacity and mid-intestine morphology of juvenile L. vannamei.
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Affiliation(s)
- HaoHang Fang
- College of Life Sciences, Sun Yat-sen University, Guangzhou, China.,Institute of Marine Research, Bergen, Norway
| | - ZhenXiao Zhuang
- College of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - LuoDong Huang
- College of Life Science and Technology, Guangxi University, Nanning, China
| | - Jin Niu
- College of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Wei Zhao
- College of Life Sciences, Sun Yat-sen University, Guangzhou, China
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10
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Fang H, Zhuang Z, Huang L, Zhao W, Niu J. Dietary Klebsormidium sp. Supplementation Improves Growth Performance, Antioxidant and Anti-Inflammatory Status, Metabolism, and Mid-Intestine Morphology of Litopenaeus Vannamei. Front Nutr 2022; 9:857351. [PMID: 35634387 PMCID: PMC9136981 DOI: 10.3389/fnut.2022.857351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Accepted: 04/07/2022] [Indexed: 11/14/2022] Open
Abstract
Filamentous microalga Klebsormidium sp. has huge potential to become a natural and healthy additive in aquatic feed since it contains various bioactive nutrients, such as linoleic acid (LA), carotenoids, and chlorophylls. Therefore, an eight-week feeding experiment was performed to evaluate the effects of dietary Klebsormidium sp. on the growth performance, antioxidant and anti-inflammatory status, metabolism, and mid-intestine morphology of Litopenaeus vannamei. Two isonitrogenous and isolipid diets supplemented with and without 5% Klebsormidium sp. were prepared. Results showed that L. vannamei fed with Klebsormidium sp. had better growth performance and feed utilization by optimizing mid-intestine morphology and improving the carbohydrate metabolism. In addition, Klebsormidium sp. also enhanced the antioxidant capacity of L. vannamei by downregulating antioxidant parameters (hepatopancreas T-SOD, hepatopancreas GSH-PX, hemolymph T-SOD, hemolymph MDA) and RNA expression levels of antioxidant genes (gsh-px and cat). Furthermore, the supplementations of dietary Klebsormidium sp. significantly improved hepatopancreas health by downregulating RNA expression levels of pro-inflammatory related genes (relish and rho). Therefore, a dose of 5% Klebsormidium sp. is recommended for the daily diet of L. vannamei to improve the growth performance, antioxidant and anti-inflammatory status, metabolism, and mid-intestine morphology of shrimp.
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Affiliation(s)
- HaoHang Fang
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory for Aquatic Economic Animals and Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), School of Life Sciences, Sun Yat-sen University, Guangzhou, China
- Institute of Marine Research, Bergen, Norway
| | - ZhenXiao Zhuang
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory for Aquatic Economic Animals and Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - LuoDong Huang
- College of Life Science and Technology, Guangxi University, Nanning, China
| | - Wei Zhao
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory for Aquatic Economic Animals and Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), School of Life Sciences, Sun Yat-sen University, Guangzhou, China
- *Correspondence: Wei Zhao
| | - Jin Niu
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory for Aquatic Economic Animals and Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), School of Life Sciences, Sun Yat-sen University, Guangzhou, China
- Jin Niu
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11
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Liao G, Wu Q, Mo B, Zhou J, Li J, Zou J, Fan L. Intestinal morphology and microflora to Vibrio alginolyticus in pacific white shrimp (Litopenaeus vannamei). FISH & SHELLFISH IMMUNOLOGY 2022; 121:437-445. [PMID: 35065276 DOI: 10.1016/j.fsi.2022.01.026] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 01/15/2022] [Accepted: 01/16/2022] [Indexed: 06/14/2023]
Abstract
In recent years, the shrimp farming industry encountered significant economic losses induced by Vibrio alginolyticus. In this study, the influence of Vibrio alginolyticus on intestinal histomorphology and microbiome composition in Litopenaeus vannamei were studied. The results showed that the intestinal mucosal epithelial cells of Vibrio group (VA group) injected only with Vibrio alginolyticus showed large area exfoliation at 12 h, and the tissue morphology of intestine recovered at 48 h. Compared with the control group (CK group), the abundance of Proteobacteria was significantly higher (P < 0.05), while the abundance of Actinobacteria was significantly lower after infection with Vibrio alginolyticus. The abundance of Shewanella in intestinal microbiome of Litopenaeus vannamei was significantly higher at 12 h (P < 0.05), but the abundance of Candidatus_Bacilloplasma was significantly lower at 48 h after infection (P < 0.05). In VA group, the diversity of intestinal microbiome was significantly lower at 12 h, which could be caused by the proliferation of Candidatus_Bacilloplasma and Shewanella. All above findings suggested that the stability of the dynamic balance of microbiome in the intestine helped Litopenaeus vannamei to resist pathogen colonization.
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Affiliation(s)
- Guowei Liao
- University Joint Laboratory of Guangdong Province, Hong Kong and Macao Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, 510642, China
| | - Qiuping Wu
- University Joint Laboratory of Guangdong Province, Hong Kong and Macao Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, 510642, China
| | - Binhua Mo
- University Joint Laboratory of Guangdong Province, Hong Kong and Macao Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, 510642, China
| | - Jiang Zhou
- University Joint Laboratory of Guangdong Province, Hong Kong and Macao Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, 510642, China
| | - Junyi Li
- University Joint Laboratory of Guangdong Province, Hong Kong and Macao Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China
| | - Jixing Zou
- University Joint Laboratory of Guangdong Province, Hong Kong and Macao Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, 510642, China
| | - Lanfen Fan
- University Joint Laboratory of Guangdong Province, Hong Kong and Macao Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China; Research Center for Green Development of Agriculture, South China Agricultural University, Guangzhou, 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, 510642, China.
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12
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Wang Z, Fan L, Wang J, Xie S, Zhang C, Zhou J, Zhang L, Xu G, Zou J. Insight into the immune and microbial response of the white-leg shrimp Litopenaeus vannamei to microplastics. MARINE ENVIRONMENTAL RESEARCH 2021; 169:105377. [PMID: 34087762 DOI: 10.1016/j.marenvres.2021.105377] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 05/07/2021] [Accepted: 05/21/2021] [Indexed: 06/12/2023]
Abstract
Microplastics (MPs) are a new type of environmental pollutant. To investigate the response of shrimp and their microflora to MPs, Litopenaeus vannamei (L. vannamei) was exposed to different concentrations of MPs (0, 50, 500, and 5000 μg/L, i.e., C, L, M and H groups) for 48 h. The survival rate, intake of MPs, immune-related gene expression and microbial response under MP exposure were detected. The results showed that the survival rate in the H group was significantly lower than those in the C, L and M groups, while the relative expression levels of proPO, TLR and ALF in the M and H groups were significantly higher than those in the C and L groups. For the microbial response, microbial community richness in the L group was significantly decreased, while community richness and diversity in the H group were significantly increased compared with those in the C group. The relative abundances of 3, 4 and 11 taxa were significantly changed after MP treatment at the phylum, class and genus levels, respectively. The results suggested that short-term exposure to low concentrations of MPs did not cause immune defense responses or death but affected the balance of bacterial composition in shrimp. Exposure to high concentrations of MPs can induce immune responses and microbial changes and can even cause death in shrimp. These findings increase our understanding of MP impacts on aquatic organisms.
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Affiliation(s)
- Zhenlu Wang
- Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China
| | - Lanfen Fan
- Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, 510642, China
| | - Jun Wang
- Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, 510642, China.
| | - Shaolin Xie
- Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, 510642, China
| | - Chaonan Zhang
- Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China
| | - Jiang Zhou
- Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China
| | - Li Zhang
- State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, 510070, China
| | - Guohuan Xu
- State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, 510070, China.
| | - Jixing Zou
- Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, 510642, China.
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13
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Duan Y, Wang Y, Huang J, Li H, Dong H, Zhang J. Toxic effects of cadmium and lead exposure on intestinal histology, oxidative stress response, and microbial community of Pacific white shrimp Litopenaeus vannamei. MARINE POLLUTION BULLETIN 2021; 167:112220. [PMID: 33836332 DOI: 10.1016/j.marpolbul.2021.112220] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 01/20/2021] [Accepted: 02/24/2021] [Indexed: 06/12/2023]
Abstract
Cadmium (Cd) and lead (Pb) are two hazardous pollutants that threaten shrimp farming. The intestine is an important organ for digestion and immunity. We separately exposed Pacific white shrimp Litopenaeus vannamei to 500 μg/L Cd or 500 μg/L Pb seawater for 7 days, and 45 shrimp from each group were used to evaluate the changes of intestinal histopathological, oxidative stress, and microbiota composition. After Cd and Pb exposure, shrimp intestine appeared significant mucosal damage and oxidative stress, and the microbiota variation were induced. Specifically, the abundance of the phyla Bacteroidetes and Actinobacteria were induced, that of Proteobacteria and Firmicutes were deduced. The abundances of putative beneficial bacteria (Lactobacillus, Weissella, Demequina, Formosa and Ruegeria) and potentially pathogenic bacteria (Vibrio and Photobacterium) were fluctuated. Furthermore, the nutrient metabolic function of intestinal microbes was significantly altered. We concluded that Cd and Pb exposure had negative effects on the intestinal health of shrimp.
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Affiliation(s)
- Yafei Duan
- Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture and Rural Affairs, Guangdong Provincial Key Laboratory of Fishery Ecology and Environment, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, PR China
| | - Yun Wang
- Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture and Rural Affairs, Guangdong Provincial Key Laboratory of Fishery Ecology and Environment, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, PR China
| | - Jianhua Huang
- Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture and Rural Affairs, Guangdong Provincial Key Laboratory of Fishery Ecology and Environment, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, PR China
| | - Hua Li
- Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture and Rural Affairs, Guangdong Provincial Key Laboratory of Fishery Ecology and Environment, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, PR China
| | - Hongbiao Dong
- Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture and Rural Affairs, Guangdong Provincial Key Laboratory of Fishery Ecology and Environment, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, PR China
| | - Jiasong Zhang
- Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture and Rural Affairs, Guangdong Provincial Key Laboratory of Fishery Ecology and Environment, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, PR China.
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14
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Xiao Y, Yang C, Xu H, Wu Q, Zhou Y, Zhou X, Miao J. Procyanidin B2 prevents dyslipidemia via modulation of gut microbiome and related metabolites in high-fat diet fed mice. J Funct Foods 2020. [DOI: 10.1016/j.jff.2020.104285] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
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15
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Wang Z, Wang L, Zhou J, Zou J, Fan L. New insights into the immune regulation and tissue repair of Litopenaeus vannamei during temperature fluctuation using TMT-based proteomics. FISH & SHELLFISH IMMUNOLOGY 2020; 106:975-981. [PMID: 32927054 DOI: 10.1016/j.fsi.2020.09.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 09/01/2020] [Accepted: 09/08/2020] [Indexed: 06/11/2023]
Abstract
To investigate shrimp immunoregulation and tissue self-repair mechanism during temperature fluctuation stage, Litopenaeus vannamei (L. vannamei) was treated under conditions of gradual cooling from an acclimation temperature (28 °C, C group) to 13 °C (T group) in 2 days with a cooling rate of 7.5 °C/d and then rewarmed to 28 °C (R group) with the same rate. Tandem mass tags (TMT) -based proteomics technology was used to investigate the protein abundance changes of intestine in L. vannamei during temperature fluctuation. The results showed that a total of 5796 proteins with function annotation were identified. Of which, the abundances of 1978 proteins (34%) decreased after cooling and then increased after rewarming, 1498 proteins (26%) increased during the whole stage, 1263 proteins (22%) increased after cooling and then decreased after rewarming and 1057 proteins (18%) decreased during the whole stage. Differentially expressed proteins such as C-lectin, NFκBIA and Caspase may contributed to the regulation of immunity and tissue repair of shrimp intestine during the temperature fluctuation stage. These findings contribute to the better understanding of shrimp' regulatory mechanism against adverse environment.
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Affiliation(s)
- Zhenlu Wang
- College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, PR China; Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, 510642, PR China
| | - Lei Wang
- Institute of Modern Aquaculture Science and Engineering (IMASE), Guangdong Provincial Key Laboratory for Healthy and Safe Aquaculture, Guangzhou Key Laboratory of Subtropical Biodiversity and Biomonitoring, Key Laboratory of Ecology and Environmental Science in Guangdong Higher Education, School of Life Sciences, South China Normal University, Guangzhou, 510631, PR China
| | - Jiang Zhou
- College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, PR China; Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, 510642, PR China
| | - Jixing Zou
- College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, PR China; Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, 510642, PR China.
| | - Lanfen Fan
- College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, PR China; Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, 510642, PR China.
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16
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Wang Z, Zhou J, Li J, Zou J, Fan L. The immune defense response of Pacific white shrimp (Litopenaeus vannamei) to temperature fluctuation. FISH & SHELLFISH IMMUNOLOGY 2020; 103:103-110. [PMID: 32348886 DOI: 10.1016/j.fsi.2020.04.053] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 04/18/2020] [Accepted: 04/23/2020] [Indexed: 06/11/2023]
Abstract
Temperature is a significant environmental factor contributing to the success of aquaculture. To investigate the immune defense response during temperature fluctuation, Litopenaeus vannamei (L. vannamei) was treated under conditions of gradual cooling from an acclimation temperature of 28 °C (C group) to 13 °C (T group) in 2 days with a cooling rate of 7.5 °C/d and then rewarmed to 28 °C (R group) using the same rate. Relative expression of immune defense system-related genes and intestinal microbial composition in L. vannamei were investigated. The results showed that with a decrease in temperature, the expression of TLR, IMD, proPO and Casp3 in intestine was significantly decreased, while the expression of Muc-3A, Muc-5AC, Muc-17, IAP, p53, HSP70, MT and Fer was significantly increased after cooling. After temperature recovery, gene expression generally showed a trend of recovering to the normal level (C). Intestinal microbial analysis showed that, compared with the C group, the Chao and Ace indexes, the relative abundance of microflora from the Phylum Bacteroidetes, Class Alphaproteobacteria, and Class Bacteroidia, significantly decreased in the R group. The results revealed that cold-stress may decrease microbial community richness, alter the bacterial community in general and reduce shrimp immunity to pathogens and antibacterial activity. As a result, during temperature fluctuation shrimp may mobilize the immune defense system through upregulating the expression of Muc genes, anti-apoptosis related genes, and antioxidant related genes in order to maintain organism homeostasis as well as to repair damaged intestinal tissue.
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Affiliation(s)
- Zhenlu Wang
- College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, PR China; Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, 510642, PR China
| | - Jiang Zhou
- College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, PR China; Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, 510642, PR China
| | - Junyi Li
- College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, PR China; Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, 510642, PR China
| | - Jixing Zou
- College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, PR China; Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, 510642, PR China.
| | - Lanfen Fan
- College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, PR China; Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, 510642, PR China.
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17
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Wei G, Ye Y, Yan X, Chao X, Yang F, Wang M, Zhang W, Yuan C, Zeng Q. Effect of banana pulp dietary fibers on metabolic syndrome and gut microbiota diversity in high-fat diet mice. J Food Biochem 2020; 44:e13362. [PMID: 32662541 DOI: 10.1111/jfbc.13362] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2020] [Revised: 06/07/2020] [Accepted: 06/09/2020] [Indexed: 12/16/2022]
Abstract
Banana (Musa nana Lour.) have the effect of anti-obesity and lipid modulating properties. However, the influences of banana pulp dietary fibers (BP-DF) on metabolic syndrome (MetS) and gut microbiota (GM) are unknown. In this research, we explore a novel strategy for dietary BP-DF on attenuation of lipid metabolic disease, GM disorder, and associated mechanisms in high-fat diet (HFD) mice. BP-DF can strongly suppress on HFD caused body weight and epididymal fat mass gain, and significantly improved serum lipid profiles, liver lipid profiles, and intestinal function. BP-DF also significantly improved fecal short-chain fatty acids formation and fecal ammonia content. BP-DF impacted the intestinal microorganism at all kinds of taxonomic levels by increasing the proportions of beneficial Lactobacillus, Bacteroidales _S24_7_group, and Alloprevotella and decreasing the disease or obesity associated Sutterella, Streptococcaceae, and Erysipelotrichaceae. The experiments show that BP-DF may use as a functional ingredient for preventing obesity, MetS, and intestinal microorganism imbalance. PRACTICAL APPLICATIONS: Obesity result in many metabolic complications, and it poses a great threat to people's health. Nowadays, the introduction of DF may lead to the development of a new strategy in the treatment of obesity and its metabolic syndrome. Our experiments findings show that BP-DF may use as a functional ingredient for preventing obesity, MetS, and intestinal microorganism imbalance. Therefore, BP-DF can be applied to the development and production of functional food, and can also be used as an important food functional ingredient, which can be added to various food, such as bread, noodles, baked goods, cakes, etc., to improve its nutritional value.
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Affiliation(s)
- Guohua Wei
- School of Food and Biology Engineering, Hefei University of Technology, Hefei, Anhui, China.,Engineering Research Center of Biology, Ministry of Education, Hefei University of Technology, Hefei, Anhui, China
| | - Yong Ye
- School of Food and Biology Engineering, Hefei University of Technology, Hefei, Anhui, China.,Engineering Research Center of Biology, Ministry of Education, Hefei University of Technology, Hefei, Anhui, China
| | - Xiang Yan
- School of Food and Biology Engineering, Hefei University of Technology, Hefei, Anhui, China.,Engineering Research Center of Biology, Ministry of Education, Hefei University of Technology, Hefei, Anhui, China
| | - Xingyu Chao
- School of Food and Biology Engineering, Hefei University of Technology, Hefei, Anhui, China.,Engineering Research Center of Biology, Ministry of Education, Hefei University of Technology, Hefei, Anhui, China
| | - Fan Yang
- School of Food and Biology Engineering, Hefei University of Technology, Hefei, Anhui, China.,Engineering Research Center of Biology, Ministry of Education, Hefei University of Technology, Hefei, Anhui, China
| | - Mengyang Wang
- School of Food and Biology Engineering, Hefei University of Technology, Hefei, Anhui, China.,Engineering Research Center of Biology, Ministry of Education, Hefei University of Technology, Hefei, Anhui, China
| | - Wencheng Zhang
- School of Food and Biology Engineering, Hefei University of Technology, Hefei, Anhui, China.,Engineering Research Center of Biology, Ministry of Education, Hefei University of Technology, Hefei, Anhui, China
| | - Chuanxun Yuan
- School of Food and Biology Engineering, Hefei University of Technology, Hefei, Anhui, China.,Engineering Research Center of Biology, Ministry of Education, Hefei University of Technology, Hefei, Anhui, China
| | - Qingmei Zeng
- School of Food and Biology Engineering, Hefei University of Technology, Hefei, Anhui, China.,Engineering Research Center of Biology, Ministry of Education, Hefei University of Technology, Hefei, Anhui, China
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18
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Qian D, Xu C, Chen C, Qin JG, Chen L, Li E. Toxic effect of chronic waterborne copper exposure on growth, immunity, anti-oxidative capacity and gut microbiota of Pacific white shrimp Litopenaeus vannamei. FISH & SHELLFISH IMMUNOLOGY 2020; 100:445-455. [PMID: 32173448 DOI: 10.1016/j.fsi.2020.03.018] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 02/27/2020] [Accepted: 03/08/2020] [Indexed: 06/10/2023]
Abstract
Copper can be accumulated in water through excessive sewage discharge or residual algaecide to generate toxic effect to aquatic animals. In this study, the juvenile of Pacific white shrimp, Litopenaeus vannamei was exposed to 0 (control), 0.05, 0.1, 0.2, 0.5 or 1 mg Cu2+ L-1 for 30 days. Growth, immune function, anti-oxidative status and gut microbiota were evaluated. Weight gain and specific growth rate of L. vannamei were significantly decreased with the increase of ambient Cu2+. Enlarged lumen and ruptured cells were found in the hepatopancreas of shrimp in the 0.5 or 1 mg Cu2+ L-1 treatment. Total hemocyte counts of shrimp in 0.5 or 1 mg Cu2+ L-1 were significantly lower than in the control. The hemocyanin concentration was also significantly increased in 0.2 or 0.5 mg Cu2+ L-1. Lysozyme contents were reduced in shrimp when Cu2+ exceeded 0.2 mg L-1. Meanwhile, activities of superoxide dismutase and glutathione peroxidase were increased in the hepatopancreas and the activity of Na+-K+ ATPase was decreased in the gills with increasing Cu2+. The mRNA expressions of immune deficiency, toll-like receptor and caspase-3 were all significantly higher in the hepatopancreas in 0.05 mg Cu2+ L-1 than in the control. For the diversity of intestinal microbes, Bacteroidetes significantly decreased in 1 mg Cu2+ L-1 at the phylum level. KEGG pathway analysis demonstrates that 1 mg L-1 Cu2+ can significantly alter metabolism, cellular processes and environmental information processing. This study indicates that the concentration of 1 mg L-1 Cu can negatively impact growth, hemolymph immunity, anti-oxidative capacity and gut microbiota composition of L. vannamei.
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Affiliation(s)
- Dunwei Qian
- Key Laboratory of Tropical Biological Resources of Ministry of Education, Hainan University, Haikou, Hainan, 570228, China; Department of Aquaculture, College of Marine Sciences, Hainan University, Haikou, Hainan, 570228, China
| | - Chang Xu
- Key Laboratory of Tropical Biological Resources of Ministry of Education, Hainan University, Haikou, Hainan, 570228, China; Department of Aquaculture, College of Marine Sciences, Hainan University, Haikou, Hainan, 570228, China.
| | - Chengzhuang Chen
- Key Laboratory of Tropical Biological Resources of Ministry of Education, Hainan University, Haikou, Hainan, 570228, China; Department of Aquaculture, College of Marine Sciences, Hainan University, Haikou, Hainan, 570228, China
| | - Jian G Qin
- School of Biological Sciences, Flinders University, Adelaide, SA, 5001, Australia
| | - Liqiao Chen
- School of Life Sciences, East China Normal University, Shanghai, 200241, China
| | - Erchao Li
- Key Laboratory of Tropical Biological Resources of Ministry of Education, Hainan University, Haikou, Hainan, 570228, China; Department of Aquaculture, College of Marine Sciences, Hainan University, Haikou, Hainan, 570228, China.
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Chen C, Xu C, Qian D, Yu Q, Huang M, Zhou L, Qin JG, Chen L, Li E. Growth and health status of Pacific white shrimp, Litopenaeus vannamei, exposed to chronic water born cobalt. FISH & SHELLFISH IMMUNOLOGY 2020; 100:137-145. [PMID: 32151686 DOI: 10.1016/j.fsi.2020.03.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Revised: 03/03/2020] [Accepted: 03/05/2020] [Indexed: 06/10/2023]
Abstract
Cobalt (Co) is an important component of vitamin B12, but is toxic to aquatic animals at a high level. In this study, the Pacific white shrimp, Litopenaeus vannamei were exposed to three Co concentrations (0, 100, and 1000 μg/L) for 4 weeks. The survival and condition factor in shrimp exposed to the Co treatments were not different from the control, but the shrimp exposed to 100 μg Co/L gained more weight than in other two groups, and the shrimp exposed to 1000 μg Co/L gained less weight than in other groups. The SOD and GSH-PX activities were higher in shrimp exposed to 100 μg Co/L, but lower in the shrimp exposed to 100 μg Co/L compared with the control, respectively. The MDA contents in the hepatopancreas decreased in the 100 μg Co/L, but increased in the 1000 μg Co/L. The serum lysozyme decreased with ambient cobalt, was lower in the shrimp exposed to 1000 μg Co/L than in other two groups. The expression of C-type lectin 3 was down-regulated by Co concentrations. The Toll and immune deficiency in shrimp exposed to 100 μg Co/L was higher than in other two groups. The mucin-1 was lower in the 1000 μg Co/L group than in other two groups, but mucin-2 and mucin-5AC were higher in the 1000 μg Co/L group than in the control. With increasing Co concentration, Shannon and Simpson indexes of the intestinal microbial communities were decreased. The abundance of pathogenic bacteria (Ruegeria and Vibrio) increased in both Co groups. This study indicates that chronic exposure to waterborne cobalt could affect growth, cause oxidative stress, stimulate the immune response, damage intestinal histology, and reshape intestinal microbiota community L. vannamei.
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Affiliation(s)
- Chengzhuang Chen
- Key Laboratory of Tropical Hydrobiology and Biotechnology of Hainan Province, Hainan University, Haikou, Hainan, 570228, China; Department of Aquaculture, College of Marine Sciences, Hainan University, Haikou, Hainan, 570228, China
| | - Chang Xu
- Key Laboratory of Tropical Hydrobiology and Biotechnology of Hainan Province, Hainan University, Haikou, Hainan, 570228, China; Department of Aquaculture, College of Marine Sciences, Hainan University, Haikou, Hainan, 570228, China.
| | - Dunwei Qian
- Key Laboratory of Tropical Hydrobiology and Biotechnology of Hainan Province, Hainan University, Haikou, Hainan, 570228, China; Department of Aquaculture, College of Marine Sciences, Hainan University, Haikou, Hainan, 570228, China
| | - Qiuran Yu
- Key Laboratory of Tropical Hydrobiology and Biotechnology of Hainan Province, Hainan University, Haikou, Hainan, 570228, China; Department of Aquaculture, College of Marine Sciences, Hainan University, Haikou, Hainan, 570228, China
| | - Maoxian Huang
- Key Laboratory of Tropical Hydrobiology and Biotechnology of Hainan Province, Hainan University, Haikou, Hainan, 570228, China; Department of Aquaculture, College of Marine Sciences, Hainan University, Haikou, Hainan, 570228, China
| | - Li Zhou
- Key Laboratory of Tropical Hydrobiology and Biotechnology of Hainan Province, Hainan University, Haikou, Hainan, 570228, China; Department of Aquaculture, College of Marine Sciences, Hainan University, Haikou, Hainan, 570228, China
| | - Jian G Qin
- School of Biological Sciences, Flinders University, Adelaide, SA, 5001, Australia
| | - Liqiao Chen
- School of Life Sciences, East China Normal University, Shanghai, 200241, China
| | - Erchao Li
- Key Laboratory of Tropical Hydrobiology and Biotechnology of Hainan Province, Hainan University, Haikou, Hainan, 570228, China; Department of Aquaculture, College of Marine Sciences, Hainan University, Haikou, Hainan, 570228, China.
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20
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Guo K, Ruan G, Fan W, Wang Q, Fang L, Luo J, Liu Y. Immune response to acute heat stress in the intestine of the red swamp crayfish, Procambarus clarkii. FISH & SHELLFISH IMMUNOLOGY 2020; 100:146-151. [PMID: 32165247 DOI: 10.1016/j.fsi.2020.03.017] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 03/04/2020] [Accepted: 03/07/2020] [Indexed: 06/10/2023]
Abstract
High temperature is an important environmental factor that affects the survival and immunity of aquatic animals. The intestine of crustaceans is their first line of defense, and the physiological homeostasis of this organ can be influenced by high temperature stress. The red swamp crayfish Procambarus clarkii is an important commercial aquaculture species in China, but little is known about its intestinal immune response to acute heat stress. In this study, we investigated the intestinal immune response of P. clarkii individuals that were assigned to the control (25 °C) and heat stress (35 °C) groups. Biochemical assays were conducted for the oxidative stress parameters ·O2- generation capacity, lipid peroxide content, and malondialdehyde content; the activities of the antioxidant enzymes superoxide dismutase, catalase, and glutathione peroxidase; and the activities of the immunity-related enzymes alkaline phosphatase, acid phosphatase, and lysozyme. The relative expression level of the antioxidant genes heat shock protein 70 (hsp70), ferritin (fer), and metallothione (met) was examined by RT-PCR. Based on the data obtained, all the parameters tended to increase, peak and then decrease with time, and were significantly different between the two groups (P < 0.05). These findings reveal that acute heat stress adversely affects the antioxidant status and immune function in the P. clarkii intestine. They lay the groundwork for future studies on the effect of rising water temperatures on immune function and survival of this species.
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Affiliation(s)
- Kun Guo
- Engineering Research Center of Ecology and Agricultural Use of Wetland, Ministry of Education, Yangtze University, Jingzhou, 434025, PR China; Hubei Research Institute of Aquatic Industry Technology, Jingzhou, 434000, PR China
| | - Guoliang Ruan
- Engineering Research Center of Ecology and Agricultural Use of Wetland, Ministry of Education, Yangtze University, Jingzhou, 434025, PR China; Hubei Research Institute of Aquatic Industry Technology, Jingzhou, 434000, PR China.
| | - Wenhao Fan
- Engineering Research Center of Ecology and Agricultural Use of Wetland, Ministry of Education, Yangtze University, Jingzhou, 434025, PR China
| | - Qian Wang
- Engineering Research Center of Ecology and Agricultural Use of Wetland, Ministry of Education, Yangtze University, Jingzhou, 434025, PR China
| | - Liu Fang
- Engineering Research Center of Ecology and Agricultural Use of Wetland, Ministry of Education, Yangtze University, Jingzhou, 434025, PR China
| | - Jingbo Luo
- Engineering Research Center of Ecology and Agricultural Use of Wetland, Ministry of Education, Yangtze University, Jingzhou, 434025, PR China
| | - Yulin Liu
- Engineering Research Center of Ecology and Agricultural Use of Wetland, Ministry of Education, Yangtze University, Jingzhou, 434025, PR China
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21
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Wang J, Song J, Li Y, Zhou X, Zhang X, Liu T, Liu B, Wang L, Li L, Li C. The distribution, expression of the Cu/Zn superoxide dismutase in Apostichopus japonicus and its function for sea cucumber immunity. FISH & SHELLFISH IMMUNOLOGY 2019; 89:745-752. [PMID: 30978445 DOI: 10.1016/j.fsi.2019.04.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2019] [Revised: 03/25/2019] [Accepted: 04/04/2019] [Indexed: 06/09/2023]
Abstract
Cu/Zn superoxide dismutases (SODs) are antioxidative metalloenzymes that exist ubiquitously in different species and are distributed widely in various tissues and cell types. In this study, the distribution and biological function of the Cu/Zn superoxide dismutase in Apostichopus japonicus (AjSOD1) is first characterized. The AjSOD1 cDNA is 1219 bp in length and contains an open reading frame (ORF) of 459 bp that encodes a protein of 152 amino acids with a deduced molecular weight of 15.47 kDa and a predicted isoelectric point of 5.65. The Cu2+/Zn2+ binding domain and conserved residues were found in the AjSOD1 amino acid sequence. A quantitative reverse transcriptase real-time PCR (qRT-PCR) assay was developed to assess the expression of AjSOD1 in different tissues. Spatial distribution analysis showed that AjSOD1 was constitutively expressed in all tested tissues, with strong expression in the intestine and weak expression in the respiratory tree. mRNA Expression of AjSOD1 was significantly upregulated when challenged with the pathogen Vibrio splendidus. Functional investigation revealed that recombinant AjSOD1 displayed good antioxidant activity. More importantly, the addition of AjSOD1 resulted in a significant decrease in coelomocyte apoptosis by LPS/H2O2 challenge in vitro. The results indicate that sea cucumber SOD1 may play critical roles not only in the defense against oxidative stress but also in the innate immune defense against bacterial infections.
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Affiliation(s)
- Jihui Wang
- Engineering Research Center of Health Food Design & Nutrition Regulation, School of Chemical Engineering and Energy Technology, Dongguan University of Technology, Dongguan, 523808, China; Department of Biotechnology, School of Biological Engineering, Dalian Polytechnic University, Dalian, 116034, Liaoning Province, PR China
| | - Jixue Song
- Department of Biotechnology, School of Biological Engineering, Dalian Polytechnic University, Dalian, 116034, Liaoning Province, PR China
| | - Yan Li
- Department of Biotechnology, School of Biological Engineering, Dalian Polytechnic University, Dalian, 116034, Liaoning Province, PR China
| | - Xue Zhou
- Department of Biotechnology, School of Biological Engineering, Dalian Polytechnic University, Dalian, 116034, Liaoning Province, PR China
| | - Xiaotian Zhang
- Department of Biotechnology, School of Biological Engineering, Dalian Polytechnic University, Dalian, 116034, Liaoning Province, PR China
| | - Tingting Liu
- Department of Biotechnology, School of Biological Engineering, Dalian Polytechnic University, Dalian, 116034, Liaoning Province, PR China
| | - Bingnan Liu
- Department of Biotechnology, School of Biological Engineering, Dalian Polytechnic University, Dalian, 116034, Liaoning Province, PR China
| | - Liang Wang
- Department of Biotechnology, School of Biological Engineering, Dalian Polytechnic University, Dalian, 116034, Liaoning Province, PR China
| | - Lin Li
- Engineering Research Center of Health Food Design & Nutrition Regulation, School of Chemical Engineering and Energy Technology, Dongguan University of Technology, Dongguan, 523808, China
| | - Cheng Li
- Department of Biotechnology, School of Biological Engineering, Dalian Polytechnic University, Dalian, 116034, Liaoning Province, PR China.
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Duan Y, Wang Y, Liu Q, Zhang J, Xiong D. Changes in the intestine barrier function of Litopenaeus vannamei in response to pH stress. FISH & SHELLFISH IMMUNOLOGY 2019; 88:142-149. [PMID: 30807860 DOI: 10.1016/j.fsi.2019.02.047] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 02/21/2019] [Accepted: 02/22/2019] [Indexed: 06/09/2023]
Abstract
pH of water environment affects the survival of aquatic animals. Intestine barrier function influences the health of animals, which is related to its mucosa structure, immune components, and microbial communities. In this study, we investigated the histological structure, digestive and metabolic capacity, immune responses, and microbial composition in the intestine of Litopenaeus vanmei under three different conditions: control (pH 8.3), low pH stress (pH 6.9), and high pH stress (pH 9.7) for 72 h. The results showed both low and high pH stress disrupted the intestine morphological structure, and induced variations in the activities of digestive (AMS, LPS, Tryp, and Pep) and metabolic (HK, PK, CCO, and LDH) enzymes. Low and high pH stress also increased oxidative stress (MDA, LPO, PC, and ·O2- generation), and decreased the antioxidant enzyme activities (T-AOC, SOD, and GST); shrimp enhanced CAT activity and HSP70, Trx, MT and Fer gene transcripts as defense mechanism. Additionally, Immune confusion was also found in the shrimp intestine in response to low and high pH stress, including the antibacterial ability (T-NOS, PO, proPO, ALF, and Lys), pathogen recognition (TLR and Lec), apoptosis (Casp, IAP and p53), and mucus homeostasis (Muc-1, Muc-2, Muc-5AC, Muc-5B, and Muc-19). pH exposure also decreased the diversity of the intestine bacterial, disturbed the composition of microbiota, and decreased the microbial metabolite SCFA contents. Our results indicated that acute pH stress can impair the intestine barrier function of white shrimp, probably via destroying mucosa structure, confusing digestion and metabolism, inducing oxidative stress, disordering immunity, and disrupting the microbial composition.
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Affiliation(s)
- Yafei Duan
- Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture and Rural Affairs, Key Laboratory of Fishery Ecology and Environment, Guangdong Province, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, 510300, PR China
| | - Yun Wang
- Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture and Rural Affairs, Key Laboratory of Fishery Ecology and Environment, Guangdong Province, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, 510300, PR China
| | - Qingsong Liu
- Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture and Rural Affairs, Key Laboratory of Fishery Ecology and Environment, Guangdong Province, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, 510300, PR China
| | - Jiasong Zhang
- Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture and Rural Affairs, Key Laboratory of Fishery Ecology and Environment, Guangdong Province, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, 510300, PR China.
| | - Dalin Xiong
- Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture and Rural Affairs, Key Laboratory of Fishery Ecology and Environment, Guangdong Province, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, 510300, PR China
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23
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Preparation, characterization and improvement in intestinal function of polysaccharide fractions from okra. J Funct Foods 2018. [DOI: 10.1016/j.jff.2018.09.035] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
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