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Fish & Shellfish Immunology

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https://www.readbyqxmd.com/read/28711392/corrigendum-to-dietary-lactobacillus-acidophilus-modulated-skin-mucus-protein-profile-immune-and-appetite-gene-expression-in-gold-fish-carassius-auratus-gibelio-fish-shellfish-immunol-59c-2016-149-154
#1
Marjan Hosseini, Hamed Kolangi Miandare, Ali Shabani, Seyed Hossein Hoseinifar, Peyman Yarahmadi
No abstract text is available yet for this article.
July 12, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28709724/a-probiotic-bacillus-strain-containing-amorphous-poly-beta-hydroxybutyrate-phb-stimulates-the-innate-immune-response-of-penaeus-monodon-postlarvae
#2
Joseph Leopoldo Q Laranja, Edgar C Amar, Gladys L Ludevese-Pascual, Yufeng Niu, Mary Joy Geaga, Peter De Schryver, Peter Bossier
In this study, the PHB-accumulating Bacillus sp. JL47 strain (capable of accumulating 55% PHB on cell dry weight) was investigated for its effects on the immune response of giant tiger shrimp (Penaeus monodon) postlarvae (PL) before and after the Vibrio campbellii challenge. Briefly, shrimp PL were cultured and fed with Artemia nauplii enriched with Bacillus sp. JL47. Shrimp receiving the Artemia nauplii without JL47 enrichment were used as control. After 15 days of feeding, the shrimp were challenged with pathogenic V...
July 11, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28709723/synbiotic-dietary-supplement-affects-growth-immune-responses-and-intestinal-microbiota-of-apostichopus-japonicas
#3
Xitao Wang, Yongxin Sun, Lili Wang, Xiaoyu Li, Kunli Qu, Yongping Xu
A feeding experiment was conducted to investigate the effects of dietary administration of synbiotic with Bacillus lincheniformis WS-2 (CGMCC No. 12813) and alginate oligosaccharides (AOS) on the growth, innate immune response, and intestinal microbiota of the sea cucumber Apostichopus japonicas and its resistance to Vibrio infection. Sea cucumbers were given a control diet (non-supplemented), pro diet (basal diet plus 1 × 10(9) cfu (g diet)(-1)B. lincheniformis WS-2), syn diet (basal diet plus 1 × 10(9) cfu (g diet)(-1)B...
July 11, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28709722/involvement-of-dopamine-beta-hydroxylase-in-the-neuroendocrine-immune-regulatory-network-of-white-shrimp-litopenaeus-vannamei
#4
Winton Cheng, Ya-Wen Ka, Chin-Chyuan Chang
In shrimp, the biosynthesis of catecholamines, including dopamine and norepinephrine, is required for physiological and immunological responses against stress. Dopamine beta-hydroxylase (DBH), a copper-containing monooxygenase enzyme that plays an important role in catecholamine synthesis of the neuroendocrine regulatory network, was identified in Litopenaeus vannamei. In the present study, the potential role of DBH in the immunocompetence of L. vannamei was further estimated by depleting DBH by pharmaceutical inhibition of disulfiram and a gene silencing technique of L...
July 11, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28705724/chse-214-a-model-for-studying-extracellular-dsrna-sensing-in-vitro
#5
A Monjo, S J Poynter, S J DeWitte-Orr
Double stranded RNA (dsRNA) is produced by almost all viruses during their replicative cycle and is a potent inducer of the innate antiviral immune response including inducing expression of type I interferons (IFNs) and interferon stimulated genes (ISGs). During lytic virus infections intracellular dsRNA can escape into the extracellular space, where surface pattern recognition receptors, such as class A scavenger receptors (SR-As) facilitate its binding and entry into neighbouring cells. Studying extracellular dsRNA entry is difficult due to the ubiquitous expression profile and compensatory dsRNA binding characteristics of SR-As; a SR-A deficient cell line has yet to be identified...
July 10, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28705723/a-pacifastacus-leniusculus-serine-protease-interacts-with-wssv
#6
Enen Guo, Gül Gizem Korkut, Phattarunda Jaree, Irene Söderhäll, Kenneth Söderhäll
Serine proteases are involved in many critical physiological processes including virus spread and replication. In the present study, we identified a new clip-domain serine protease (PlcSP) in the crayfish Pacifastacus leniusculus hemocytes, which can interact with the White Spot Syndrome Virus (WSSV) envelope protein VP28. It was characterized by a classic clip domain with six strictly conserved Cys residues, and contained the conserved His-Asp-Ser (H-D-S) motif in the catalytic domain. Furthermore, signal peptide prediction revealed that it has a 16-residue secretion signal peptide...
July 10, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28705722/identification-characterization-and-expression-analysis-of-tlr5-in-the-mucosal-tissues-of-turbot-scophthalmus-maximus-l-following-bacterial-challenge
#7
Fengqiao Liu, Baofeng Su, Qiang Fu, Mei Shang, Chengbin Gao, Fenghua Tan, Chao Li
TLRs (Toll-like receptors) are very important pathogen pattern recognition receptors, which control the host immune responses against pathogens through recognition of molecular patterns specific to microorganisms. In this regard, investigation of the turbot TLRs could help to understand the immune responses for pathogen recognition. Here, transcripts of two TLRs (TLR5a and TLR5b) were captured, and their protein structures were also predicted. Meanwhile, we characterized their expression patterns with emphasis on mucosal barriers following different bacterial infection...
July 10, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28705721/characterization-of-nlrp3-like-gene-from-apostichopus-japonicus-provides-new-evidence-on-inflammation-response-in-invertebrates
#8
Zhimeng Lv, Zhixin Wei, Zhen Zhang, Chenghua Li, Yina Shao, Weiwei Zhang, Xuelin Zhao, Ye Li, Xuemei Duan, Jinbo Xiong
Inflammatory/defensive response after pathogen invasion is considered a local defense reaction in vertebrates. Inflammation response in Apostichopus japonicus was hardly determined due to scarce information available for nucleotide binding domain-like receptor family, pyrin domain-containing (NLRP) family. In the present study, invertebrate NLRP homologue was identified from A. japonicus (designated as AjNLRP3-like) by rapid amplification of cDNA ends. Full-length cDNA of AjNLRP3-like measured 2970 bp with 2265 bp open reading frame encoding a 754-amino acid (aa) residue protein...
July 10, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28705720/dietary-supplementation-with-selenium-yeast-and-tea-polyphenols-improve-growth-performance-and-nitrite-tolerance-of-wuchang-bream-megalobrama-amblycephala
#9
Meng Long, Wang Lin, Jie Hou, Honghui Guo, Li Li, Dapeng Li, Rong Tang, Fan Yang
In order to explore the effects of dietary selenium yeast, tea polyphenols and their combination on growth of Wuchang bream (Megalobrama amblycephala) and its resistance to nitrite stress, 360 healthy Wuchang bream with initial body weight of (55.90 ± 2.60) g were randomly divided into four groups: a control group fed with basal diet and three treated groups fed with basal diets supplemented with 0.50 mg/kg selenium yeast, 50 mg/kg tea polyphenols, and the combination of 0.50 mg/kg selenium yeast and 50 mg/kg tea polyphenols, respectively...
July 10, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28698128/genome-wide-identification-characterization-and-expression-analyses-of-tlrs-in-yesso-scallop-patinopecten-yessoensis-provide-insight-into-the-disparity-of-responses-to-acidifying-exposure-in-bivalves
#10
Qiang Xing, Huan Liao, Xiaogang Xun, Jing Wang, Zhengrui Zhang, Zujing Yang, Xiaoting Huang, Zhenmin Bao
Toll-like receptors (TLRs) play a crucial role in innate immunity by recognizing specific pathogen-associated molecular patterns, including lipoproteins, lipopeptides, lipopolysaccharide, flagellin, dsRNA, ssRNA and CpG DNA motifs. Although significant effects of TLRs on immunity have been reported in most vertebrates and some invertebrates, the complete TLR superfamily has not been systematically characterized in scallops. In this study, 18 TLR genes were identified from Yesso scallop (Patinopecten yessoensis) using whole-genome scanning...
July 8, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28698127/dietary-protein-levels-regulated-antibacterial-activity-inflammatory-response-and-structural-integrity-in-the-head-kidney-spleen-and-skin-of-grass-carp-ctenopharyngodon-idella-after-challenged-with-aeromonas-hydrophila
#11
Wei-Dan Jiang, Jing Xu, Xiao-Qiu Zhou, Pei Wu, Yang Liu, Jun Jiang, Sheng-Yao Kuang, Ling Tang, Wu-Neng Tang, Yong-An Zhang, Lin Feng
This study investigated the effects of dietary protein levels on disease resistance, immune function and structural integrity in the head kidney, spleen and skin of grass carp (Ctenopharyngodon idella). A total of 540 grass carp (264.11 ± 0.76 g) were fed six diets containing graded levels of protein (143.1, 176.7, 217.2, 257.5, 292.2 and 322.8 g digestible protein kg(-1) diet) for 8 weeks. After the growth trial, fish were challenged with Aeromonas hydrophila for 14 days. The results indicated that optimal levels of dietary protein: (1) (1) increased the lysozyme (LA) and acid phosphatase (ACP) activities and the complement 3 (C3) and C4 contents, up-regulated antimicrobial peptides, anti-inflammatory cytokines, inhibitor of κBα, target of rapamycin and ribosomal protein S6 kinases 1 mRNA levels, whereas down-regulated pro-inflammatory cytokines, nuclear factor kappa B (NF-κB) P65, IKKβ, IKKγ, eIF4E-binding proteins (4E-BP) 1 and 4E-BP2 mRNA levels in the head kidney, spleen and skin of grass carp (P < 0...
July 8, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28698126/molecular-characterization-and-expression-analyses-of-toll-like-receptor-5-induced-by-vibrio-parahaemolyticus-antigens-in-pacific-red-snapper
#12
Martha Reyes-Becerril, Erika Alamillo, Sergio Rosales-Mendoza, Felipe Ascencio, M Angeles Esteban, Carlos Angulo
Toll-like receptor 5 (TLR5) is a member of TLRs family responsible for the bacterial flagellin recognition in vertebrates. Herein, the TLR5M gene structure of Pacific red snapper (Lutjanus peru) was characterized. The full-length cDNA of LpTLR5M comprises an open reading frame (ORF) of 2715 bp, encoding a polypeptide of 904 amino acids including 9 LRRs (residues 119-562) and one LRR-CT domain (residues 593-646) at the extracellular region, and a TIR domain (residues 710-904) in the cytoplasmic region. The amino acid sequence in L...
July 8, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28698125/effects-of-lactobacillus-delbrueckii-on-immune-response-disease-resistance-against-aeromonas-hydrophila-antioxidant-capability-and-growth-performance-of-cyprinus-carpio-huanghe-var
#13
Chun-Nuan Zhang, Ji-Liang Zhang, Wen-Chao Guan, Xiao-Fei Zhang, Su-Hua Guan, Qing-Hui Zeng, Gao-Feng Cheng, Wei Cui
The aim of the present study was to investigate effects of dietary Lactobacillus delbrueckii (L. delbrueckii) on immune response, disease resistance against Aeromonas hydrophila (A. hydrophila), antioxidant capability and growth performance of Cyprinus carpio Huanghe var. 450 fish (mean weight of 1.05 ± 0.03 g) were randomly distributed into five groups that fed diets containing different levels of L. delbrueckii (0, 1 × 10(5), 1 × 10(6), 1 × 10(7) and 1 × 10(8) CFU g(-1)) for 8 weeks. The results showed that intestinal immune parameters such as lysozyme, acid phosphatase, and myeloperoxidase activities, immunoglobulin M content, and the survival rate were improved in fish fed with 1 × 10(6) and 1 × 10(7) CFU g(-1)L...
July 8, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28698124/the-role-of-phosphatidylinositol-3-oh-kinase-pi3-kinase-and-respiratory-burst-enzymes-in-the-omim-bf4-mediated-toxic-mode-of-action-in-mussel-hemocytes
#14
Alexia Belavgeni, Stefanos Dailianis
The present study investigates the role of phosphatidylinositol-3-OH-kinase (PI3-kinase) and respiratory burst enzymes, NADPH oxidase and NO synthase, in the 1-methyl-3-octylimidazolium tetrafluoroborate ([omim][BF4])-mediated toxic mode of action in mussel hemocytes. Specifically, cell viability (using the neutral red uptake assay) was primarily tested in hemocytes treated with different concentrations of [omim][BF4] (0.1-10 mg L(-1)) and thereafter [omim][BF4]-mediated oxidative (in terms of superoxide anions/O2(-) and nitric oxide/NO generation, as well as the enhancement of lipid peroxidation by-products, in terms of malondialdehyde/MDA) and genotoxic (in terms of DNA damage) effects were determined in hemocytes treated with 1 mg L(-1) [omim][BF4]...
July 8, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28698123/identification-molecular-evolution-of-toll-like-receptors-in-a-tibetan-schizothoracine-fish-gymnocypris-eckloni-and-their-expression-profiles-in-response-to-acute-hypoxia
#15
Delin Qi, Mingzhe Xia, Yan Chao, Yongli Zhao, Rongrong Wu
Hypoxia plays an important role in regulating a variety of physiological responses as well as in pathological situations, but to date the roles of Toll-like receptors (TLRs) in fish in response to hypoxia are still poorly understood. Here, we sequenced the transcriptome of G. eckloni and identified the members of TLR family by scanning transcriptome, and then investigated the expression profiles of a complete set of TLRs in G. eckloni in response to acute hypoxia (4 h at DO = 0.3 ± 0.1 mg/L). The de novo-assembled transcriptome consisted of a total of 162,235 transcripts, further clustered into 110,231 unigenes...
July 8, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28698122/transcriptome-analysis-and-discovery-of-genes-involved-in-immune-pathways-in-large-yellow-croaker-larimichthys-crocea-under-high-stocking-density-stress
#16
Peng Sun, Peibo Bao, Baojun Tang
The large yellow croaker, Larimichthys crocea, is an economically important maricultured species in southeast China. Owing to the importance of stocking densities in commercial fish production, it is crucial to establish the physiological responses and molecular mechanisms that govern adaptation to crowding in order to optimize welfare and health. In the present study, an extensive immunity-related analysis was performed at the transcriptome level in L. crocea in response to crowding stress. Over 145 million high-quality reads were generated and de novo assembled into a final set of 40,123 unigenes...
July 8, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28698121/the-transcriptional-response-of-the-pacific-oyster-crassostrea-gigas-against-acute-heat-stress
#17
Chuanyan Yang, Qiang Gao, Chang Liu, Lingling Wang, Zhi Zhou, Changhao Gong, Anguo Zhang, Huan Zhang, Limei Qiu, Linsheng Song
The Pacific oyster, Crassostrea gigas, has evolved sophisticated mechanisms to adapt the changing ambient conditions, and protect themselves from stress-induced injuries. In the present study, the expression profiles of mRNA transcripts in the haemocytes of oysters under heat stress were examined to reveal the possible mechanism of heat stress response. There were 23,315, 23,904, 23,123 and 23,672 transcripts identified in the haemocytes of oysters cultured at 25 °C for 0, 6, 12, and 24 h (designed as B, H6, H12, H24), respectively...
July 8, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28698120/effectiveness-of-formalin-killed-vaccines-containing-cpg-oligodeoxynucleotide-1668-adjuvants-against-vibrio-harveyi-in-orange-spotted-grouper
#18
Hai Trong Nguyen, Thuy Thi Thu Nguyen, Yi-Ting Wang, Pei-Chyi Wang, Shih-Chu Chen
Vibrio harveyi is a major bacterial pathogen that causes serious vibriosis in cultured groupers, leading to massive deaths. In this study, we evaluated the immune responses and protective efficacy of vaccines containing V. harveyi formalin-killed cells (FKC) formulated with CpG ODN 1668-enriched plasmids (p30CpG and p60CpG) in the orange-spotted grouper. Results indicated that antibody titres were remarkably increased in vaccinated fish 2 weeks post-immunisation. Expression level of major histocompatibility complex (MHC) class II, CD 8, and toll-like receptor 9 was significantly upregulated in the spleen of fish immunised with CpG ODN 1668-adjuvanted vaccines, as recorded at 6 weeks after immunisation...
July 8, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28698119/stress-differentially-affects-the-systemic-and-leukocyte-estrogen-network-in-common-carp
#19
Ewa Szwejser, Lukasz Pijanowski, Magdalena Maciuszek, Anna Ptak, Kamil Wartalski, Malgorzata Duda, Helmut Segner, B M Lidy Verburg-van Kemenade, Magdalena Chadzinska
Both systemic and locally released steroid hormones, such as cortisol and estrogens, show immunomodulatory actions. This research gives evidence that circulating and leukocyte-derived estrogens can be involved in the regulation of the immune response in common carp, during homeostasis and upon restraining stress. It was found that stress reduced level of blood 17β-estradiol (E2) and down-regulated the gene expression of components of the "classical" estrogen system: the nuclear estrogen receptors and the aromatase CYP19, in the hypothalamus, the pituitary and in the ovaries...
July 8, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28690141/molecular-characterization-and-protein-localization-of-the-antimicrobial-peptide-big-defensin-from-the-scallop-argopecten-purpuratus-after-vibrio-splendidus-challenge
#20
Roxana González, Katherina Brokordt, Claudia B Cárcamo, Teodoro Coba de la Peña, Daniel Oyanedel, Luis Mercado, Paulina Schmitt
Big defensins are antimicrobial peptides (AMPs) that are proposed as important effectors of the immune response in mollusks, chelicerates and chordates. At present, only two members of the big defensin family have been identified in scallop. In the present work, a cDNA sequence encoding a new big defensin homologue was characterized from the scallop Argopecten purpuratus, namely ApBD1. ApBD1 cDNA sequence comprised 585 nucleotides, with an open reading frame of 375 bp and 5'- and 3'-UTRs of 41 and 167 bp, respectively...
July 6, 2017: Fish & Shellfish Immunology
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