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Molecular characterization, expression and function analysis of Epinephelus coioides MKK4 response to SGIV and Vibrio alginolyticus infection Dev. Comp. Immunol. (IF 3.192) Pub Date : 2021-01-19 Yu-Ling Su; Yu-Feng Jiang; He-Jia Chen; Shi Ye; Wei-Hua Zhou; Hong-Ping Liu; Jun-De Dong; Jing-Guang Wei; Qi-Wei Qin; Hongyan Sun
Mitogen-activated protein kinase 4 (MKK4), a member of the MAP kinase family, play important roles in response to many environmental and cellular stresses in mammals. In this study, three MKK4 subtypes, EcMKK4-1, EcMKK4-2 and EcMKK4-3, were obtained from grouper Epinephelus coioides. The open reading frame (ORF) of EcMKK4s are obtained and the EcMKK4s proteins contain highly conserved domains: a S_TKc
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The early response expression profiles of miRNA-mRNA in farmed yellow catfish (Pelteobagrus fulvidraco) challenged with Edwardsiella tarda infection Dev. Comp. Immunol. (IF 3.192) Pub Date : 2021-01-18 Hua Liu; Jia-fang Xie; Hui Yu; Zheng Ma; Ying-Ying Yu; Ying Yang
Edwardsiella tarda, the bacterial pathogen that causes ascites disease and red-head disease, poses a serious threat to yellow catfish (Pelteobagrus fulvidraco) aquaculture. In this study, the spleens of E. tarda-infected and non-infected yellow catfish were sequenced to obtain the microRNA (miRNA) and mRNA expression profiles. We obtained 657 differentially expressed (DE) miRNAs and 6867 DE mRNAs between
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Phase specific suppression of neutrophil function in hibernating Syrian hamster Dev. Comp. Immunol. (IF 3.192) Pub Date : 2021-01-24 Vera A. Reitsema; Marloes M. Oosterhof; Robert H. Henning; Hjalmar R. Bouma
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Chicken interferon regulatory factor 7 (IRF7) can control ALV-J virus infection by triggering type I interferon production through affecting genes related with innate immune signaling pathway Dev. Comp. Immunol. (IF 3.192) Pub Date : 2021-01-23 Yan Wang; Fuling Yang; Huadong Yin; Qijian He; Yuxiang Lu; Qing Zhu; Xi Lan; Xiaoling Zhao; Diyan Li; Yiping Liu; Hengyong Xu
In order to breed new birds with strong disease resistance, it is necessary to first understand the mechanism of avian antiviral response. Interferon regulatory factor 7 (IRF7) is not only a member of type I interferons (IFNs) regulatory factor (IRFs) family, but also a major regulator of the IFN response in mammals. However, whether IRF7 is involved in the host innate immune response remains unclear
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Characterization of immunological properties of chicken chemokine CC motif ligand 5 using new monoclonal antibodies Dev. Comp. Immunol. (IF 3.192) Pub Date : 2021-01-23 Mingmin Lu; Alfredo Panebra; Woohyun Kim; Hyun S. Lillehoj
CCL5 (formerly RANTES) belongs to the CC (or β) chemokine family and is associated with a plethora of inflammatory disorders and pathologic states. CCL5 is mainly produced and secreted by T cells, macrophages, epithelial cells, and fibroblasts and acts as a chemoattractant to recruit effector cells to the inflammation sites. Chicken CCL5 (chCCL5) protein is closely related to avian CCL5 orthologs but
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Functional differences in the products of two TRAF3 genes in antiviral responses in the Chinese giant salamander, Andrias davidianus Dev. Comp. Immunol. (IF 3.192) Pub Date : 2021-01-16 Ya-Ping Xu; Yi-Lian Zhou; Yi Xiao; Wen-Bin Gu; Bo Li; Yuan-Xin Cheng; Bing-Wu Li; Da-Yong Chen; Xiao-Feng Zhao; Wei-Ren Dong; Miao-An Shu
Tumour necrosis factor receptor associated factor 3 (TRAF3) is a crucial transducing protein for linking upstream receptor signals and downstream antiviral signalling pathways. Previous studies mostly clarified the functions of TRAF3 in mammals, birds and fish, but little is known about the characterization and function of TRAF3 in amphibians. In this study, the molecular and functional identification
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Fas/FasL of pacific cod mediated apoptosis Dev. Comp. Immunol. (IF 3.192) Pub Date : 2021-01-19 Ming-Guang Mao; Jia Xu; Rui-Ting Liu; Lin Ye; Rui Wang; Jie-lan Jiang
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Identification and functional characterization of three irf7 transcript variants in obscure puffer (Takifugu obscurus) Dev. Comp. Immunol. (IF 3.192) Pub Date : 2021-01-19 Fan-Xiang Gao; Wei-Jia Lu; Yan Shi; Li Zhou; Jian-Fang Gui; Zhe Zhao
Interferon regulatory factor 7 (IRF7) is a key mediator in regulating the type Ι IFN response. Although irf7 has been identified in more than twenty fish species, alternative splicing has not been found in teleost irf7. Alternative splicing is an important mechanism expanding the transcriptomic and proteomic diversity, and has been found in several IRF family members. Here, three alternative splicing
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The antiviral immunity of ticks against transmitted viral pathogens Dev. Comp. Immunol. (IF 3.192) Pub Date : 2021-01-21 Melbourne Rio Talactac; Emmanuel Pacia Hernandez; Takeshi Hatta; Kentaro Yoshii; Kodai Kusakisako; Naotoshi Tsuji; Tetsuya Tanaka
Ticks, being obligate hematophagous arthropods, are exposed to various blood-borne pathogens, including arboviruses. Consequently, their feeding behavior can readily transmit economically important viral pathogens to humans and animals. With this tightly knit vector and pathogen interaction, the replication and transmission of tick-borne viruses (TBVs) must be highly regulated by their respective tick
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Molecular cloning, inducible expression with SGIV and Vibrio alginolyticus challenge, and function analysis of Epinephelus coioides PDCD4 Dev. Comp. Immunol. (IF 3.192) Pub Date : 2021-01-16 Guo Chen; Pin-Hong Li; Jia-Yang He; Yu-Ling Su; He-Jia Chen; Jun-De Dong; You-Hua Huang; Xiao-Hong Huang; Yu-Feng Jiang; Qi-Wei Qin; Hong-Yan Sun
Programmed cell death 4 (PDCD4) in mammals, a gene closely associated with apoptosis, is involved in many biological processes, such as cell aging, differentiation, regulation of cell cycle, and inflammatory response. In this study, grouper Epinephelus coioides PDCD4, EcPDCD4-1 and EcPDCD4-2, were obtained. The open reading frame (ORF) of EcPDCD4-1 is 1413 bp encoding 470 amino acids with a molecular
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mTORC2/Rictor is essential for coelomocyte endocytosis in Apostichopus japonicus Dev. Comp. Immunol. (IF 3.192) Pub Date : 2021-01-12 Zhimeng Lv; Zongxu Yue; Yina Shao; Chenghua Li; Xuelin Zhao; Ming Guo
Endocytosis plays an important role in the immune defence systems of invertebrates through the interaction between the mechanical target of rapamycin complex 2 (mTORC2) and the AGC kinase family. Rictor is the most important unique subunit protein of mTORC2 and is thought to regulate almost all functions of mTORC2, including endocytosis. In the present study, a novel invertebrate Rictor homologue was
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Genomic analysis of a second rainbow trout line (Arlee) leads to an extended description of the IGH VDJ gene repertoire Dev. Comp. Immunol. (IF 3.192) Pub Date : 2021-01-12 Susana Magadan; Stanislas Mondot; Yniv Palti; Guangtu Gao; Marie Paule Lefranc; Pierre Boudinot
High-throughput sequencing technologies brought a renewed interest for immune repertoires. Fish Ab and B cell repertoires are no exception, and their comprehensive analysis can both provide new insights into poorly understood immune mechanisms, and identify markers of protection after vaccination. However, the lack of genomic description and standardized nomenclature of IG genes hampers accurate annotation
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Do ectothermic vertebrates have a home in which to affinity mature their antibody responses? Dev. Comp. Immunol. (IF 3.192) Pub Date : 2021-01-19 A. Muthupandian; D. Waly; B.G. Magor.
There has been a longstanding question of whether affinity maturation occurs in ectotherms, and if it does, where in tissues this happens. Although cold-blooded vertebrates (ectotherms) lack histologically discernable germinal centers, they have fully functional Ig gene mutator enzymes (activation-induced cytidine deaminase: AID or Aicda). Protein and Ig cDNA transcript analyses provide evidence that
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Genetic determinants of antiviral immunity in dipteran insects – compiling the experimental evidence Dev. Comp. Immunol. (IF 3.192) Pub Date : 2021-01-19 Samara Rosendo Machado; Tom van der Most; Pascal Miesen
The genetic basis of antiviral immunity in dipteran insects is extensively studied in Drosophila melanogaster and advanced technologies for genetic manipulation allow a better characterization of immune responses also in non-model insect species. Especially, immunity in vector mosquitoes is recently in the spotlight, due to the medical impact that these insects have by transmitting viruses and other
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Determinants of defence strategies of a hibernating European bat species towards the fungal pathogen Pseudogymnoascus destructans Dev. Comp. Immunol. (IF 3.192) Pub Date : 2021-01-18 Marcus Fritze; Sebastien J. Puechmaille; David Costantini; Jörns Fickel; Christian C. Voigt; Gábor Á. Czirják
Pseudogymnoascus destructans (Pd), the causative agent of white-nose syndrome in North America, has decimated bat populations within a decade. The fungus impacts bats during hibernation when physiological functions, including immune responses, are down-regulated. Studies have shown that Pd is native to Europe, where it is not associated with mass mortalities. Moreover, genomic and proteomic studies
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The primitive interferon-like system and its antiviral function in molluscs Dev. Comp. Immunol. (IF 3.192) Pub Date : 2021-01-11 Xue Qiao; Lingling Wang; Linsheng Song
The phylum mollusca is a very important group in the animal kingdom for the large number and diversified species. Recently, interest in molluscan immunity has increased due to their phylogenetic position and importance in worldwide aquaculture and aquatic environment. As the main aquaculture animal, most molluscs live in the water environment and they have to cope with many pathogen challenges, in
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The influence of 17β-oestradiol on lymphopoiesis and immune system ontogenesis in juvenile sea bass, Dicentrarchus labrax Dev. Comp. Immunol. (IF 3.192) Pub Date : 2021-01-16 Catarina Moreira; Matthieu Paiola; Aurélie Duflot; Inma Varó; Ariadna Sitjà-Bobadilla; Thomas Knigge; Patrícia Pinto; Tiphaine Monsinjon
The female sex steroid 17β-oestradiol (E2) is involved in the regulation of numerous physiological functions, including the immune system development and performance. The role of oestrogens during ontogenesis is, however, not well studied. In rodents and fish, thymus maturation appears to be oestrogen-dependent. Nevertheless, little is known about the function of oestrogen in immune system development
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IRF1 and IRF2 act as positive regulators in antiviral response of large yellow croaker (Larimichthys crocea) by induction of distinct subgroups of type I IFNs Dev. Comp. Immunol. (IF 3.192) Pub Date : 2021-01-11 Xiaojuan Chen; Yanyun Guan; Kexin Li; Tian Luo; Yinnan Mu; Xinhua Chen
Interferon regulatory factors (IRFs) are crucial transcription factors involved in transcriptional regulation of type I interferons (IFNs) and IFN-stimulated genes (ISGs) against viral infection. In teleost fish, eleven IRFs have been found, however, understanding of their roles in the antiviral response remains limited. In the previous study, IRF1 (LcIRF1) and IRF2 (LcIRF2) genes were cloned from
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Grass carp (Ctenopharyngodon idellus) Cdc25a down-regulates IFN 1 expression by reducing TBK1 phosphorylation Dev. Comp. Immunol. (IF 3.192) Pub Date : 2021-01-15 Hang Deng; Liugen Zeng; Kaile Chang; Yangfeng Lv; Hailing Du; Shina Lu; Yapeng Liu; Pengcheng Zhou; Huiling Mao; Chengyu Hu
In vertebrates, TANK Binding Kinase 1 (TBK1) plays an important role in innate immunity, mainly because it can mediate production of interferon to resist the invasion of pathogens. In mammals, cell division cycle-25a (Cdc25a) is a member of the Cdc25 family of cell division cycle proteins. It is a phosphatase that plays an important role in cell cycle regulation by dephosphorylating its substrate proteins
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Characterization of the turbot Scophthalmus maximus (L.) myeloperoxidase. An insight into the evolution of vertebrate peroxidases Dev. Comp. Immunol. (IF 3.192) Pub Date : 2021-01-04 Manuel Noia; Francisco Fontenla-Iglesias; Alejandra Valle; Verónica Blanco-Abad; José Manuel Leiro; Jesús Lamas
We have completed the characterization of the turbot (Scophthalmus maximus) myeloperoxidase (mpx) gene and protein, which we partially described in a previous study. The turbot mpx gene has 15 exons that encode a protein of 767 aa, with a signal peptide, propeptide and light and heavy chains, and also with haem cavities, a Ca+2-binding motif and several N- and O-glycosylation sites. The mature protein
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A teleost bactericidal permeability-increasing protein-derived peptide that possesses a broad antibacterial spectrum and inhibits bacterial infection as well as human colon cancer cells growth Dev. Comp. Immunol. (IF 3.192) Pub Date : 2021-01-04 Qin-qin Gu; Shu-wen He; Li-hui Liu; Guang-hua Wang; Dong-fang Hao; Hong-mei Liu; Chang-biao Wang; Chao Li; Min Zhang; Ning-qiu Li
The bactericidal permeability-increasing protein (BPI) is a multifunctional cationic protein produced by neutrophils with antibacterial, antitumor, and LPS-neutralizing properties. In teleost, a number of BPIs have been reported, but their functions are very limited. In this study, an N-terminal peptide, BO18 (with 18 amino acids), derived from rock bream (Oplegnathus fasciatus) BPI, was synthesized
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Interleukin-2 enhancer binding factor 2 (ILF2) in pacific white shrimp (Litopenaeus vannamei): Alternatively spliced isoforms with different responses in the immune defenses against vibrio infection Dev. Comp. Immunol. (IF 3.192) Pub Date : 2020-12-29 Xiao Jiang; Xin Zhang; Chunhua Ren; Yao Ruan; Yongtong Lu; Lihong Yuan; Jiaxi Li; Aifen Yan; Yanhong Wang; Peng Luo; Chaoqun Hu; Ting Chen
Alternative splicing is an essential molecular mechanism that increase the protein diversity of a species to regulate important biological processes. As a transcription factor, Interleukin-2 enhancer binding factor 2 (ILF2) regulates the functions of interleukin-2 (IL-2) at the levels of transcription, splicing and translation, and plays other critical roles in the immune system. ILF2 is well-documented
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In Litopenaeus vannamei, the cuticular chitin-binding proteins LvDD9A and LvDD9B retard AHPND pathogenesis but facilitate WSSV infection Dev. Comp. Immunol. (IF 3.192) Pub Date : 2021-01-12 Yi-Lun Chen; Ramya Kumar; Chun-Hung Liu; Han-Ching Wang
Acute hepatopancreatic necrosis disease (AHPND) is a serious bacterial disease caused by V. parahaemolyticus strains which contain a virulent plasmid that encodes a binary pore-forming Pir toxin. Typically, these AHPND-causing bacteria first colonize in the shrimp stomach and then later cross to the hepatopancreas. To do this, they must pass through structural barriers which include the pliant cuticular
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Identification and characterization of caspases genes in rainbow trout (Oncorhynchus mykiss) and their expression profiles after Aeromonas salmonicida and Vibrio anguillarum infection Dev. Comp. Immunol. (IF 3.192) Pub Date : 2020-12-24 Chu Zeng; Zhi-Shuai Hou; Hong-Kui Zhao; Yuan-Ru Xin; Meng-Qun Liu; Xiao-Dong Yang; Hai-Shen Wen; Ji-Fang Li
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Goat γδ T cell subpopulations defined by WC1 expression, responses to pathogens and cytokine production Dev. Comp. Immunol. (IF 3.192) Pub Date : 2020-12-19 Alehegne W. Yirsaw; Alexandria Gillespie; Emily Britton; Alyssa Doerle; Lisa Johnson; Susan Marston; Janice Telfer; Cynthia L. Baldwin
The major functions of γδ T cells in mammals overlap with those of αβ T cells but differ in that γδ T cells are rapid responders and see different types of antigens. While γδ T cells have been shown to be a major population of circulating lymphocytes in artiodactyl species such as cattle, sheep, and pigs, less is known about these cells in goats, an important agricultural species. We have recently
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Interactions of Vank proteins from Microplitis bicoloratus bracovirus with host Dip3 suppress eIF4E expression Dev. Comp. Immunol. (IF 3.192) Pub Date : 2021-01-05 Qiu-Chen Cai; Chang-Xu Chen; Hong-Yu Liu; Wei Zhang; Yun-Feng Han; Qi Zhang; Gui-Fang Zhou; Sha Xu; Tian Liu; Wei Xiao; Qi-Shun Zhu; Kai-Jun Luo
Microplitis bicoloratus bracovirus (MbBV) inhibits the immune response of the host Spodoptera litura by disrupting nuclear factor (NF)-κB signaling and downstream gene expression. However, the underlying molecular mechanisms are not well understood. Herein, we report that viral ankyrin (Vank) proteins interacted with host dorsal-interacting protein 3 (Dip3) to selectively inhibit the transcription
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Gene duplication and adaptive evolution of Toll-like receptor genes in birds Dev. Comp. Immunol. (IF 3.192) Pub Date : 2021-01-08 Jiandong Yang; Ming Zhou; Yun Zhong; Liqun Xu; Changjun Zeng; Xiaoling Zhao; Ming Zhang
Toll-like receptors (TLRs) play an important role in innate immune through recognizes pathogens. In order to reveal the evolutionary patterns and adaptive evolution of avian TLRs, we examined 66 representative bird species in 26 orders. Phylogenetic results indicated that TLR1A and TLR1B may have differentiated functionally. Evolutionary analysis showed that the TLR genes in birds under strong Purification
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Skin damage caused by scale loss modifies the intestine of chronically stressed gilthead sea bream (Sparus aurata, L.) Dev. Comp. Immunol. (IF 3.192) Pub Date : 2020-12-29 Ana Patrícia Mateus; Mona Mourad; Deborah M. Power
The present study was designed to test if the damage caused by scale loss provokes a change in other innate immune barriers such as the intestine and how chronic stress affects this response. Sea bream (Sparus aurata) were kept in tanks at low density (16 kg m−3, LD) or exposed to a chronic high density (45 kg m−3, HD) stress for 4 weeks. Scales were then removed (approximately 50%) from the left flank
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Advances in immunological research of amphioxus Dev. Comp. Immunol. (IF 3.192) Pub Date : 2020-12-31 Wenjun Wang; Changliu Wang; Wei Chen; Shuo Ding
Amphioxus, one of the most closely related invertebrates to vertebrates, is an important animal model for studying the origin and evolution of vertebrate immunity, especially the transition from innate immunity to adaptive immunity. The current research progresses of amphioxus in the field of immune organs, immune cells, complement system, cytokines, nuclear factor kappa B, immune-related lectins and
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Expression, signal transduction, and function analysis of TIRAP and TRIF in Nile tilapia (Oreochromis niloticus) Dev. Comp. Immunol. (IF 3.192) Pub Date : 2020-12-30 Nguyen Bao Trung; Fan-Hua Nan; I-Jong Wang; Yu-Ching Wu; Chiu-Ming Wen; Meng-Chou Lee; Ho Thi Hang; Po-Tsang Lee
Toll/interleukin 1 receptor domain-containing adaptor protein (TIRAP) and toll/interleukin 1 receptor-domain-containing adapter-inducing interferon-β (TRIF) are crucial adaptors of signal transduction for the signaling pathways of toll-like receptors (TLRs). TIRAP and TRIF perform an essential function in an antimicrobial immune response; however, their function in Nile tilapia remains unknown. Herein
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Chitin binding protein from the kuruma shrimp Marsupenaeus japonicus facilitates the clearance of Vibrio anguillarum Dev. Comp. Immunol. (IF 3.192) Pub Date : 2020-12-17 Sen Xu; Ming Jing; De-Min Kong; Ya-Ru Wang; Quan Zhou; Wen-Ying Liu; Fei Jiao; You-Jie Li; Shu-Yang Xie
Peritrophic membrane (PM) refers to a vital physical barrier enabling shrimp to resist pathogen invasion. It primarily consists of chitin and proteins, mostly chitin-binding protein (CBP). CBPs have been identified from microorganisms to higher organisms. In the present study, a CBP, designated MjCBP, was reported from Marsupenaeus japonicus. The open reading frame of MjCBP was 1854 bp, encoding a
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Full recombinant flagellin B from Vibrio anguillarum (rFLA) and its recombinant D1 domain (rND1) promote a pro-inflammatory state and improve vaccination against P. salmonis in Atlantic salmon (S. salar) Dev. Comp. Immunol. (IF 3.192) Pub Date : 2020-12-23 Roxana González-Stegmaier; Andrea Peña; Franz Villarroel-Espíndola; Patricia Aguila; Cristian Oliver; Desmond MacLeod-Carey; Marco Rozas-Serri; Ricardo Enriquez; Jaime Figueroa
Flagellin is the major component of the flagellum, and a ligand for Toll-like receptor 5. As reported, recombinant flagellin (rFLA) from Vibrio anguillarum and its D1 domain (rND1) are able to promote in vitro an upregulation of pro-inflammatory genes in gilthead seabream (Sparus aurata) and rainbow trout (Oncorhynchus mykiss) macrophages. This study evaluated the in vitro and in vivo stimulatory/adjuvant
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Sensing and signalling viral infection in drosophila Dev. Comp. Immunol. (IF 3.192) Pub Date : 2020-12-23 Juliette Schneider; Jean-Luc Imler
The fruitfly Drosophila melanogaster is a valuable model to unravel mechanisms of innate immunity, in particular in the context of viral infections. RNA interference, and more specifically the small interfering RNA pathway, is a major component of antiviral immunity in drosophila. In addition, the contribution of inducible transcriptional responses to the control of viruses in drosophila and other
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Expression of a phenoloxidase cascade inhibitor enhances the virulence of the fungus Beauveria bassiana against the insect Helicoverpa armigera Dev. Comp. Immunol. (IF 3.192) Pub Date : 2020-12-24 Zhan-Chi Liu; Liu Zhou; Jia-Lin Wang; Xu-Sheng Liu
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microRNA-128 inhibits the inflammatory responses by targeting TAB2 in miiuy croaker, Miichthysmiiuy Dev. Comp. Immunol. (IF 3.192) Pub Date : 2020-12-18 Xiaomeng Ren; Junxia Cui; Tianjun Xu; Yuena Sun
The inflammatory response is a self-defense process that fights the pathogen invasion by eliminating harmful stimuli. However, excessive inflammation may disrupt immune homeostasis, even causing chronic inflammation or autoimmune diseases. MicroRNAs (miRNAs) are a crucial regulator that can negatively regulate gene expression and participate in multiple biological processes of growth, development,
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Jackdaw nestlings rapidly increase innate immune function during the nestling phase but no evidence for a trade-off with growth Dev. Comp. Immunol. (IF 3.192) Pub Date : 2020-12-13 Christian Aastrup; Arne Hegemann
Although animals are born with a protective immune system, even the innate immune system is under development from birth to adulthood and this development may be affected by sex and growth. However, most knowledge comes from captive animals or long-lived slow growing species. Moreover, little is known about how innate immune function, the important first line of defence, develops during early life
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Interferon regulatory factor 7 contributes to the host response during Vibrio harveyi infection in the golden pompano Trachinotus ovatus Dev. Comp. Immunol. (IF 3.192) Pub Date : 2020-12-11 Ying Wu; Yongcan Zhou; Zhenjie Cao; Xiaojuan Chen; Hehe Du; Yun Sun
Vibrio harveyi is regarded as serious pathogen for marine fishes. However, host defense mechanisms involved in V. harveyi infection remain incompletely defined. The transcription factor IFN regulatory factor 7 (IRF7) is largely associated with host defense against viral infections, and the role of IRF7 during V. harveyi infection in fish has not been well illuminated previously. In this study, IRF7
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Innate immune responses against viral pathogens in Macrobrachium Dev. Comp. Immunol. (IF 3.192) Pub Date : 2020-12-15 Ying Huang; Qian Ren
Some members of genus Macrobrachium are important economically prawns and valuable objects for studying the innate immune defense mechanism of crustaceans. Studies have focused on immune responses against bacterial and fungal infections and have expanded to include antiviral immunity over the past two decades. Similar to all living organisms, prawns are exposed to viruses, including white spot syndrome
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A trypsin-like serine protease domain of masquerade gene in crayfish Procambarus clarkii could activate prophenoloxidase and inhibit bacterial growth Dev. Comp. Immunol. (IF 3.192) Pub Date : 2020-12-17 Hui Yang; Tongwei Ji; Haoran Xiong; Yingying Zhang; Wenzhi Wei
Masquerade (Mas) is a secreted trypsin-like serine protease (SPs) and involved in immune response in some arthropods. However, according to previous studies, Mas presents different functional activities. In the present study, the functional mechanisms of Mas in crayfish Procambarus clarkii immune defense were studied. A fragment cDNA sequence of PcMas was identified and characterized. From the structural
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Characterization of ayu (Plecoglossus altivelis) urocortin: The function of an endocrine factor in monocyte/macrophage regulation Dev. Comp. Immunol. (IF 3.192) Pub Date : 2020-12-16 Rui Jiang; Xin-Jiang Lu; Jian-Fei Lu; Jiong Chen
Urocortin (UCN) is a hormone in the hypothalamic–pituitary–adrenal axis that is expressed in various immune cells. However, the function of teleost UCN in the immune system remains unclear. In this study, we cloned the cDNA sequence of UCN from ayu Plecoglossus altivelis (PaUCN). Sequence and phylogenetic tree analyses showed that PaUCN clustered within the fish UCN 1 group and was most related to
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Characterization, expression and function analysis of the TLR3 gene in golden pompano (Trachinotus ovatus) Dev. Comp. Immunol. (IF 3.192) Pub Date : 2020-12-16 Meng Wu; Ke-Cheng Zhu; Hua-Yang Guo; Liang Guo; Bo Liu; Shi-Gui Jiang; Dian-Chang Zhang
Toll-like receptors (TLRs)are pattern recognition receptors (PRRs) that are important in invertebrate innate immunity for the recognition and elimination of pathogens. Although they were reported in many fishes, Toll-like receptors subfamily contain a large number of members with different functions that need to research in deep. In the present study, the full-length cDNA of TLR3 from the golden pompano
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Cloning and structural analysis of complement component 3d in wild birds provides insight into its functional evolution Dev. Comp. Immunol. (IF 3.192) Pub Date : 2020-12-15 Bo Jiang; Zhenhua Zhang; Jian Xu; Huan Jin; Tuya; Yongqing Li
Complement component 3 d (C3d) is the final cleavage product of the complement component C3 and serves as a crucial role in link innate and adaptive immunity, and increase B-cell sensitivity to an antigen by 1000–10000 fold. The crystal structure of human C3d revealed there are two distinct surfaces, a convex surface containing the thioester-constituting residues that mediate covalent binding to the
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Effects of early nutrition and sanitary conditions on antibody levels in early and later life of broiler chickens Dev. Comp. Immunol. (IF 3.192) Pub Date : 2020-12-10 M.S. Hollemans; G. de Vries Reilingh; S. de Vries; H.K. Parmentier; A. Lammers
Immune maturation of broiler chickens may be affected by management, such as early life feeding strategy (early versus delayed nutrition) or by low or high sanitary conditions (LSC versus HSC). We compared systemic maternal (MAb), natural (NAb), natural auto- (NAAb), and antigen specific antibody (SpAb) levels (IgM, IgY) between broilers (n = 48 per treatment) that received early (EN) or delayed nutrition
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Molecular and functional identification of a short-type peptidoglycan recognition protein, PGRP-S, in the Chinese soft-shelled turtle Pelodiscus sinensis Dev. Comp. Immunol. (IF 3.192) Pub Date : 2020-12-10 Lin Huang; Shan Nan Chen; Zhen Gan; Pin Nie
Peptidoglycan recognition proteins (PGRPs), which are discovered in invertebrates and vertebrates, play an important role in antibacterial immunity. However, the function of PGRPs is largely uninvestigated in reptiles. In the present study, a short-type PGRP gene, designed as C-turtle-PGRP-S, was identified in the Chinese soft-shelled turtle, Pelodiscus sinensis. The C-turtle-PGRP-S contains a highly
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Interaction between matrix metalloproteinase-9 (MMP-9) and neutrophil gelatinase-associated lipocalin (NGAL): A recent evolutionary event in primates Dev. Comp. Immunol. (IF 3.192) Pub Date : 2020-11-24 Fabio D'Amico; Saverio Candido; Massimo Libra
Matrix metalloproteases are known to represent an early step in the evolution of the immune system. Similarly, neutrophil gelatinase-associated lipocalin is known to be a key effector in immune response. MMP-9 interacts with NGAL, but their interaction mechanisms remain unclear. Functional interaction between proteins is ensured by coevolution. Protein coevolution was inferred by calculating the linear
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Identification and analysis of two lebocins in the oriental armyworm Mythimna separata Dev. Comp. Immunol. (IF 3.192) Pub Date : 2020-12-07 Fang-Fang Liu; Chen Ding; Li-Ling Yang; Hao Li; Xiang-Jun Rao
The insect immune system can produce defensive molecules, such as antimicrobial peptides (AMPs), to eliminate invading pathogens. Here, we report the identification of two cDNAs (MseLeb1, MseLeb2) that encode lepidopteral lebocin preproproteins in the oriental armyworm, Mythimna separata. Their open reading frames are 483/492 bp that encode 161/164 aa peptides. MseLeb1 is mainly expressed in the fat
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Four immunoglobulin isotypes and IgD splice variants in urodele amphibians Dev. Comp. Immunol. (IF 3.192) Pub Date : 2020-12-07 Keisuke Yoshinaga; Hiroto Oshio; Billy Prasetio; Haruka Hayashida; Eriko Maeda; Mizuki Matsumoto
Until recently, different families of urodele amphibians were thought to express distinct subsets of immunoglobulin (Ig) isotypes. In this study, we explored cDNAs encoding Ig heavy-chains (H-chains) in three species of urodele amphibians. We found that Cynops pyrrhogaster, Pleurodeles waltl, and Ambystoma mexicanum each carry genes encoding four Ig H-chain isotypes, including IgM, IgY, IgD, and IgX
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RGD-binding integrins mediated phagocytosis involved in the entry of Edwardsiella tarda into mudskipper MO/MФ Dev. Comp. Immunol. (IF 3.192) Pub Date : 2020-12-07 Ting-Fang Zhu; Yu-Hong Shi; Ming-Yun Li; Jiong Chen
The versatile fish pathogen Edwardsiella tarda is an intracellular pathogen with the ability to invade and replicate in host phagocytes. However, the mechanism mediating the uptake of E. tarda in fish monocytes/macrophages (MO/MΦ) is not yet understood. Generating mudskipper kidney-derived MO/MФ transcriptomic resources from mudskipper challenged by E. tarda is crucial for understanding the molecular
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Characterization of novel zebrafish MHC class I U lineage genes and their haplotype Dev. Comp. Immunol. (IF 3.192) Pub Date : 2020-12-03 Yasuko Honjo; Kosuke Takano; Tatsuo Ichinohe
Major histocompatibility complex (MHC) genes are essential for distinguishing between individuals in all jawed vertebrates. Although MHC class I (mhc1) genes in zebrafish comprise distinct haplotypes, not all members of the mhc1 gene family have been fully characterized. In this study, we report the identification of two novel U lineage genes isolated from the WIK strain of zebrafish. These new mhc1
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Structure and regulation of the NK-lysin (1–4) and NK-lysin like (a and b) antimicrobial genes in rainbow trout (Oncorhynchus mykiss) Dev. Comp. Immunol. (IF 3.192) Pub Date : 2020-12-07 Hao Ma; Yueh-Chiang Han; Yniv Palti; Guangtu Gao; Sixin Liu; Debra E. Palmquist; Gregory D. Wiens; Brian S. Shepherd
Nk-lysin (Nkl), an antimicrobial peptide (AMP) product of natural killer cells and cytotoxic T cells in mammals, has recently been characterized in a number of finfish species. In this study, we identified six genes with sequence homology to Nkl and characterized their patterns of mRNA expression and abundances in rainbow trout (Oncorhynchus mykiss). The cDNA sequences for the six Nkls encoded precursor
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Mosquito antiviral immune pathways Dev. Comp. Immunol. (IF 3.192) Pub Date : 2020-12-07 Chinmay V. Tikhe; George Dimopoulos
Mosquitoes are vectors of a large number of viral pathogens. In recent years, increased urbanization and climate change has expanded the range of many vector mosquitoes. The lack of effective medical interventions has made the control of mosquito-borne viral diseases very difficult. Understanding the interactions between the mosquito immune system and viruses is critical if we are to develop effective
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Characterization and expression analysis of mitochondrial localization molecule: NOD-like receptor X1 (Nlrx1) in mucosal tissues of turbot (Scophthalmus maximus) following bacterial challenge Dev. Comp. Immunol. (IF 3.192) Pub Date : 2020-11-26 Lin Song; Chengbin Gao; Ting Xue; Ning Yang; Qiang Fu; Qing Zhu; Xuefeng Ge; Chao Li
The NOD-like receptor X1 (NLRX1) is a member of highly conserved nucleotide-binding domain (NBD)- and leucine-rich-repeat (LRR)-containing family (known as NLR), that localizes to the mitochondrial outer membrane and regulate the innate immunity by interacting with mitochondrial antiviral-signaling protein (MAVS). As one of cytoplasmic PRRs, NLRX1 plays key roles for pathogen recognition, autophagy
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Comparative investigation of IFN-γ-producing T cells in chickens and turkeys following vaccination and infection with the extracellular parasite Histomonas meleagridis Dev. Comp. Immunol. (IF 3.192) Pub Date : 2020-11-28 Julia Lagler; Selma Schmidt; Taniya Mitra; Maria Stadler; Patricia Wernsdorf; Beatrice Grafl; Tamas Hatfaludi; Michael Hess; Wilhelm Gerner; Dieter Liebhart
The re-emerging disease histomonosis is caused by the protozoan parasite Histomonas meleagridis that affects chickens and turkeys. Previously, protection by vaccination with in vitro attenuated H. meleagridis has been demonstrated and an involvement of T cells, potentially by IFN-γ production, was hypothesized. However, comparative studies between chickens and turkeys on H. meleagridis-specific T cells
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The evolutionary analysis of complement component C5 and the gene co–expression network and putative interaction between C5a and C5a anaphylatoxin receptor (C5AR/CD88) in human and two Cyprinid fish Dev. Comp. Immunol. (IF 3.192) Pub Date : 2020-12-05 Lisen Li; Weining Yang; Yubang Shen; Xiaoyan Xu; Jiale Li
The complement system is a complex network of soluble and membrane-associated serum proteins that regulate immune response. Activation of the complement C5 generates C5a and C5b which generate chemoattractive effect on myeloid cells and initiate the membrane attack complex (MAC) assembly. However, the study of evolutionary process and systematic function of C5 are still limited. In this study, we performed
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The function of zebrafish gpbar1 in antiviral response and lipid metabolism Dev. Comp. Immunol. (IF 3.192) Pub Date : 2020-12-05 Fan Xiong; Lu Cao; Xiao Man Wu; Ming Xian Chang
G protein-coupled bile acids receptor 1 (GPBAR1 or TGR5) has been widely studied as a metabolic regulator involved in bile acids synthesis, glucose metabolism and energy homeostasis. Several recent studies have shown that mammalian GPBAR1 is also involved in antiviral innate immune responses. However, the functions of piscine GPBAR1 in antibacterial or antiviral immune responses and lipid metabolism
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The novel six LIM and one PET domain-containing protein Lmpt is involved in the immune response through activation of the NF-κB signalling pathway in the crustacean, Macrobrachium nipponense Dev. Comp. Immunol. (IF 3.192) Pub Date : 2020-11-27 Liaoyi Xu; Xiefei Zhou; Peichen Wang; Qian Jin; Tingyao Zhu; Ming Chen; Haisheng Xu
The four-and-a-half LIM-only protein family of transcription co-factors participates in various cellular processes, such as cell proliferation, cell differentiation, apoptosis, cell adhesion, migration, transcription and signal transduction. However, the knowledge of the structural characteristics and immune functions of its ancestor Lmpt, which contains six LIM domains at the C-terminus and a PET
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Recent insights into anti-WSSV immunity in crayfish Dev. Comp. Immunol. (IF 3.192) Pub Date : 2020-11-27 Ling-ke Liu; Man-jun Liu; Dong-Li Li; Hai-peng Liu
White spot syndrome virus (WSSV) is currently the most severely viral pathogen for farmed crustaceans such as shrimp and crayfish, which has been causing huge economic losses for crustaceans farming worldwide every year. Unfortunately, study on the molecular mechanisms of WSSV has been restricted by the lack of crustacean cell lines for WSSV propagation as well as the incompletely annotated genomes
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Hemocyte extracellular traps of Manila clam Ruditapes philippinarum: Production characteristics and antibacterial effects Dev. Comp. Immunol. (IF 3.192) Pub Date : 2020-12-01 Yijing Han; Lizhu Chen; Qianqian Zhang; Daode Yu; Dinglong Yang; Jianmin Zhao
Extracellular traps (ETs) have been found to be an important strategy of mammals to immobilize and kill invading microorganisms. In the present study, we observed the formation of ETs in the hemocytes of marine mollusks Ruditapes philippinarum in response to challenge from bacteria Vibrio anguillarum, and examined the potential factors and signaling pathways underling this process. We detected an increase
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Bombyx mori nucleopolyhedrovirus downregulates transcription factor BmFoxO to elevate virus infection Dev. Comp. Immunol. (IF 3.192) Pub Date : 2020-11-24 Xiaoli Kang; Yaping Wang; Wenjuan Liang; Xin Tang; Yan Zhang; Lingyan Wang; Ping Zhao; Zhongyan Lu
Forkhead-box O (FoxO) is the primary transcriptional effector of the insulin-like signaling pathway that enhances gluconeogenesis through transcriptional activation of PEPCK and G6Pase in mammals. We have previously demonstrated the involvement of phosphoenolpyruvate carboxykinase (BmPEPCK-2) in antiviral immunity against the multiplication of Bombyx mori nuclearpolyhedrosisvirus (BmNPV) in silkworm
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Adaptive immune responses in channel catfish exposed to Edwardsiella ictaluri live attenuated vaccine and wild type strains through the specific gene expression profiles Dev. Comp. Immunol. (IF 3.192) Pub Date : 2020-11-28 Adef O. Kordon; Hossam Abdelhamed; Attila Karsi; Lesya M. Pinchuk
We extend the previous findings on the differential activity of immune-related genes in the lymphoid organs of channel catfish in the 7 days post-challenge (dpc) with E. ictaluri live attenuated vaccines (LAVs) and wild ty