Abstract:
:β-glucans exert receptor-mediated immunomodulating activities, including oxidative burst activity and cytokine secretion. The role of the β-glucan receptors dectin-1 and complement receptor 3 (CR3) in the response of immune cells towards β-glucans is still unresolved. Dectin-1 is considered as the main β-glucan receptor in mice, while recent studies in man show that CR3 is more important in β-glucan-mediated responses. This incited us to elucidate which receptor contributes to the response of innate immune cells towards particulate β-glucans in pigs as the latter might serve as a better model for man. Our results show an important role of CR3 in β-glucan recognition, as blocking this receptor strongly reduced the phagocytosis of β-glucans and the β-glucan-induced ROS production by porcine neutrophils. Conversely, dectin-1 does not seem to play a major role in β-glucan recognition in neutrophils. However, recognition of β-glucans appeared cell type-specific as both dectin-1 and CR3 are involved in the β-glucan-mediated responses in pig macrophages. Moreover, CR3 signalling through focal adhesion kinase (FAK) was indispensable for β-glucan-mediated ROS production and cytokine production in neutrophils and macrophages, while the Syk-dependent pathway was only partly involved in these responses. We may conclude that CR3 plays a cardinal role in β-glucan signalling in porcine neutrophils, while macrophages use a more diverse receptor array to detect and respond towards β-glucans. Nonetheless, FAK acts as a master switch that regulates β-glucan-mediated responses in neutrophils as well as macrophages.
journal_name
Dev Comp Immunoljournal_title
Developmental and comparative immunologyauthors
Baert K,Sonck E,Goddeeris BM,Devriendt B,Cox Edoi
10.1016/j.dci.2014.10.005subject
Has Abstractpub_date
2015-01-01 00:00:00pages
192-203issue
1eissn
0145-305Xissn
1879-0089pii
S0145-305X(14)00252-3journal_volume
48pub_type
杂志文章abstract::While genetic evidence points towards an absence of Toll-Like Receptors (TLRs) in Platyhelminthes, the Toll/IL-1 Receptor (TIR)-domains that drive the assembly of signalling complexes downstream TLR are present in these organisms. Here, we undertook the characterisation of the repertoire of TIR-domain containing prote...
journal_title:Developmental and comparative immunology
pub_type: 杂志文章
doi:10.1016/j.dci.2018.05.004
更新日期:2018-09-01 00:00:00
abstract::Antimicrobial peptides (AMPs) are components of innate immunity found in many forms of life. However, there have been no reports of AMPs in sea star (Phylum Echinodermata). Here we report the isolation and characterization of a novel antimicrobial peptide from the coelomic epithelium extract of the sea star Patiria pe...
journal_title:Developmental and comparative immunology
pub_type: 杂志文章
doi:10.1016/j.dci.2018.05.002
更新日期:2018-09-01 00:00:00
abstract::A comprehensive analysis of cattle shotgun sequencing data reveals 36 immunoglobulin heavy chain variable genes. The previously described bovine subgroup IGHV1 contains 10 functional genes with a conserved promoter including the consensus octamer and several other transcription factor binding sites, intact exons and m...
journal_title:Developmental and comparative immunology
pub_type: 杂志文章
doi:10.1016/j.dci.2012.02.006
更新日期:2012-07-01 00:00:00
abstract::In crustaceans, lipopolysaccharide- and β-1,3-glucan-binding protein (LGBP) plays an important role in innate immunity by mediating the recognition of pathogens to host cells. Hereby, LGBP was cloned from Fenneropenaeus merguiensis hepatopancreas. Its full-length cDNA (1280 bp) had an open reading frame of 1101 bp, en...
journal_title:Developmental and comparative immunology
pub_type: 杂志文章
doi:10.1016/j.dci.2016.07.006
更新日期:2017-02-01 00:00:00
abstract::The skin mucus of the conger eel, Conger myriaster, contains galactose-specific agglutinins. Hemagglutinating activity is independent of divalent cations and is destroyed by heating at 50 degrees C for 15 min. The mucus agglutinins, named congerins, are a mixture of proteins with different electrical charges. Three of...
journal_title:Developmental and comparative immunology
pub_type: 杂志文章
doi:10.1016/0145-305x(88)90007-9
更新日期:1988-04-01 00:00:00
abstract::Cytidine/uridine monophosphate kinase 2 (CMPK2) is a thymidylate kinase and in mammals is known to be involved in mitochondrial DNA (mtDNA) synthesis and antiviral immunity. However, very little is known about the function of CMPK2 in fish. With an aim to elucidate the antimicrobial mechanism of CMPK2 in fish, we in t...
journal_title:Developmental and comparative immunology
pub_type: 杂志文章
doi:10.1016/j.dci.2020.103924
更新日期:2021-03-01 00:00:00
abstract::Scavenger receptors (SRs) are pattern recognition receptors (PRRs) vital for innate immunity. As well as their importance in immune recognition, microbe phagocytosis, and the clearance of modified endogenous molecules, they also activate downstream immune responses as co-receptors. In the current study, we identified ...
journal_title:Developmental and comparative immunology
pub_type: 杂志文章
doi:10.1016/j.dci.2019.103496
更新日期:2020-02-01 00:00:00
abstract::CD3 is an essential component of the TCR-CD3 complex which plays a key role in adaptive immunity. Non-mammalian CD3 complex consists of CD3γ/δ, CD3ε and CD3ζ subunits. In this study, homologues of CD3γ/δ and CD3ε (termed CiCD3γ/δ and CiCD3ε) have been identified in grass carp (Ctenopharyngodon idella). Like their coun...
journal_title:Developmental and comparative immunology
pub_type: 杂志文章
doi:10.1016/j.dci.2020.103791
更新日期:2021-01-01 00:00:00
abstract::Profilin is a small, actin-binding protein that functions at the intersection of signal transduction and cytoskeletal modifications. Increases in the number of profilin messages per cell correlate with sea urchin coelomocytes activation in response to injury. Here we show that coelomocytes respond to immune challenge ...
journal_title:Developmental and comparative immunology
pub_type: 杂志文章
doi:10.1016/0145-305x(95)00009-i
更新日期:1995-05-01 00:00:00
abstract::Beta_defensin have been solely found in vertebrates until β-defensin-like peptides were described as transcript isoforms in two species of Panulirus genus. They were considered as putative antimicrobials since their biological activity have not been demonstrated. Here we purified and characterized a defensin-like pept...
journal_title:Developmental and comparative immunology
pub_type: 杂志文章
doi:10.1016/j.dci.2016.09.002
更新日期:2017-02-01 00:00:00
abstract::Interferon regulatory factors (irfs) are a family of genes that encode transcription factors with important roles in regulating the expression of Type I interferons (IFNs) and other genes associated with related pathways. irfs have multitudinous functions in growth, development and regulation of oncogenesis. In this s...
journal_title:Developmental and comparative immunology
pub_type: 杂志文章
doi:10.1016/j.dci.2016.09.014
更新日期:2017-02-01 00:00:00
abstract::Tick defensins are antimicrobial peptides that play a major role in the innate immunity of ticks by providing a direct antimicrobial defense. In this study, we identified and characterized a defensin-like encoding gene, HEdefensin, from the expressed sequence tags (EST) database of hemolymph from the hard tick Haemaph...
journal_title:Developmental and comparative immunology
pub_type: 杂志文章
doi:10.1016/j.dci.2016.11.013
更新日期:2017-03-01 00:00:00
abstract::Immunity in insects has largely focused on responses towards bacteria and fungi, but recently the study of immune responses against viral infections has also received attention. In Lepidoptera, phagocytosis and encapsulation mediated by hemocytes, and apoptosis are part of the response against virus infection; however...
journal_title:Developmental and comparative immunology
pub_type: 杂志文章,评审
doi:10.1016/j.dci.2007.09.006
更新日期:2008-01-01 00:00:00
abstract::White spot syndrome virus (WSSV), the causative agent of white spot disease (WSD), is a serious and aggressive shrimp viral pathogen with a worldwide distribution. At the genome replication stage (12 hpi), WSSV induces a metabolic rerouting known as the invertebrate Warburg effect, which boosts the availability of ene...
journal_title:Developmental and comparative immunology
pub_type: 杂志文章
doi:10.1016/j.dci.2015.06.001
更新日期:2015-11-01 00:00:00
abstract::To date two closely related interleukin-1β genes (IL-1β1 and IL-β2) have been found in salmonids. The cloning of trout and salmon IL-1β3, and a salmon IL-1β4 pseudogene reveals that two types of IL-1β genes exist in teleost species. Type I teleost IL-1β genes, including salmonid IL-1β3, share a similar 6 coding exon s...
journal_title:Developmental and comparative immunology
pub_type: 杂志文章
doi:10.1016/j.dci.2012.07.010
更新日期:2012-11-01 00:00:00
abstract::White Spot Syndrome Virus (WSSV) is currently the most serious shrimp pathogen, which has brought huge losses to shrimp industry worldwide. CD63 of shrimp belongs to the tetraspanin superfamily, which plays an important role in signal transduction and immune process. In this paper, CD63 cDNA sequence of Litopenaeus va...
journal_title:Developmental and comparative immunology
pub_type: 杂志文章
doi:10.1016/j.dci.2016.03.004
更新日期:2016-07-01 00:00:00
abstract::The in vitro mitogenic responses of channel catfish peripheral blood leucocytes to ConA and LPS were differentially affected by both in vitro and in vivo temperatures. The magnitude of the response to LPS was relatively independent of both in vitro culture temperature and in vivo acclimation temperature. The magnitude...
journal_title:Developmental and comparative immunology
pub_type: 杂志文章
doi:10.1016/0145-305x(84)90038-7
更新日期:1984-04-01 00:00:00
abstract::We report on the cloning and characterization of Trypanosoma carassii 70 KDa heat shock protein (hsp70). T. carassii hsp70 was secreted/excreted into culture medium in vitro and was recognized by sera from infected fish. Recombinant hsp70 (rhsp70) activated goldfish macrophages and stimulated the production of pro-inf...
journal_title:Developmental and comparative immunology
pub_type: 杂志文章
doi:10.1016/j.dci.2009.06.003
更新日期:2009-10-01 00:00:00
abstract::Photorhabdus bacteria enter into a mutualistic symbiosis with Heterorhabditis nematodes to infect insect larvae. However, they rapidly kill the model nematode Caenorhabditis elegans. One hypothesis for these divergent outcomes is that the nematode defense responses differ. To begin testing this hypothesis, we have sys...
journal_title:Developmental and comparative immunology
pub_type: 杂志文章
doi:10.1016/j.dci.2017.09.005
更新日期:2018-05-01 00:00:00
abstract::CfTEP is a member of thioester-containing protein (TEP) family found in Zhikong scallop Chlamys farreri and is involved in innate immunity against invading microbes. In the present study, the genomic DNA of CfTEP was cloned and characterized. The genomic DNA sequence of CfTEP consisted of 40 exons and 39 introns spann...
journal_title:Developmental and comparative immunology
pub_type: 杂志文章
doi:10.1016/j.dci.2009.05.007
更新日期:2009-10-01 00:00:00
abstract::IL-22 plays a role in various disorders in mammals, including mucosal-associated infections and inflammatory diseases. No functional IL-22 studies have been conducted on non-mammals to date. In this study, recombinant IL-22 (rIL-22) from turbot was produced to investigate its effects as a bioactive molecule. The expre...
journal_title:Developmental and comparative immunology
pub_type: 杂志文章
doi:10.1016/j.dci.2013.08.021
更新日期:2013-12-01 00:00:00
abstract::The role of accessory cells in the proliferative response of chicken spleen cells to Staphylococcus aureus Cowan I (SAC) was examined. It was found that chicken spleen cells cultured with SAC produced a soluble molecule capable of causing proliferation when culture supernatants were added to spleen cells. The molecule...
journal_title:Developmental and comparative immunology
pub_type: 杂志文章
doi:10.1016/0145-305x(87)90020-6
更新日期:1987-01-01 00:00:00
abstract::In this study, we examined the expression of epithelial Na(+) channel (ENaC) subunits in human peripheral blood lymphocytes, human lymph nodes and molluscan immunocytes using non-radioactive in situ hybridization. The results showed that T lymphocytes express the ENaC gamma subunit mRNA, and B lymphocytes the ENaC bet...
journal_title:Developmental and comparative immunology
pub_type: 杂志文章
doi:10.1016/s0145-305x(01)00097-0
更新日期:2002-06-01 00:00:00
abstract::Haemocyte subpopulations of Calliphora vomitoria have been categorized by their surface staining properties using fluorescently labelled lectins, and their mobilities in Percoll density gradients. These methods of identification were exploited to determine the roles of these cell types in cellular defence reactions. S...
journal_title:Developmental and comparative immunology
pub_type: 杂志文章
doi:10.1016/0145-305x(92)90048-h
更新日期:1992-01-01 00:00:00
abstract::Lysozyme is an important enzyme in the innate immune system that plays a vital role in fighting microbial infections. In the current study, we identified, cloned, and characterized a gene that encodes an invertebrate-type lysozyme from the disk abalone, Haliotis discus discus (abLysI). The full-length cDNA of abLysI c...
journal_title:Developmental and comparative immunology
pub_type: 杂志文章
doi:10.1016/j.dci.2013.06.009
更新日期:2013-10-01 00:00:00
abstract::Microsporidia are a group of fungi-like intracellular and unicellular parasites, which infect nearly all animals. As "master parasites", over 1400 microsporidian species have been described to date. Microsporidia infections in economical invertebrates (e.g., silkworm, shrimp) cause huge financial losses, while other m...
journal_title:Developmental and comparative immunology
pub_type: 杂志文章,评审
doi:10.1016/j.dci.2018.02.004
更新日期:2018-06-01 00:00:00
abstract::The deep-sea hydrothermal vents are known as harsh environments, abundant in animal diversity surrounded by fluids with specific physiological and chemical composition. Bathymodiolus azoricus mussels are endemic species dwelling at hydrothermal vent sites and at distinct depth ranges. Mussels from Menez Gwen (MG), Luc...
journal_title:Developmental and comparative immunology
pub_type: 杂志文章
doi:10.1016/j.dci.2019.05.001
更新日期:2019-10-01 00:00:00
abstract::RNA interference (RNAi) is reported here for the first time for Biomphalaria glabrata, the snail intermediate host for the human parasite Schistosoma mansoni. The fibrinogen-related protein 2 (FREP2) gene, normally expressed at increased levels following exposure to digenetic trematode parasites, such as S. mansoni or...
journal_title:Developmental and comparative immunology
pub_type: 杂志文章
doi:10.1016/j.dci.2005.12.004
更新日期:2006-01-01 00:00:00
abstract::Temperature variability, and in particular temperature decreases, can increase susceptibility of amphibians to infections by the fungus Batrachochytrium dendrobatidis (Bd). However, the effects of temperature shifts on the immune systems of Bd-infected amphibians are unresolved. We acclimated frogs to 16 °C and 26 °C ...
journal_title:Developmental and comparative immunology
pub_type: 杂志文章
doi:10.1016/j.dci.2017.08.018
更新日期:2017-12-01 00:00:00
abstract::Chytridiomycosis, an emerging infectious disease (EID) of the skin caused by the chytrid fungus, Batrachochytrium dendrobatidis, has been linked with continuing amphibian population declines in the western USA, Central America, Europe, Africa, and Australia. Genetic analysis suggests that B. dendrobatidis is a recentl...
journal_title:Developmental and comparative immunology
pub_type: 杂志文章,评审
doi:10.1016/j.dci.2004.11.004
更新日期:2005-01-01 00:00:00