Profiling Atlantic salmon B cell populations: CpG-mediated TLR-ligation enhances IgM secretion and modulates immune gene expression
Source at https://doi.org/10.1038/s41598-018-21895-9 . Licensed CC BY-NC-ND 4.0. While TLR-activated pathways are key regulators of B cell responses in mammals, their impact on teleost B cells are scarcely addressed. Here, the potential of Atlantic salmon B cells to respond to TLR ligands was shown...
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ftunivtroemsoe:oai:munin.uit.no:10037/13446 2023-05-15T15:31:40+02:00 Profiling Atlantic salmon B cell populations: CpG-mediated TLR-ligation enhances IgM secretion and modulates immune gene expression Jenberie, Shiferaw Thim, Hanna Leena Sunyer, J Oriol Skjødt, Karsten Jensen, Ingvill Jørgensen, Jorunn B 2018-02-23 https://hdl.handle.net/10037/13446 https://doi.org/10.1038/s41598-018-21895-9 eng eng Nature Publishing Group Jenberie, S. (2020). Atlantic salmon B cells- local and systemic responses to intraperitoneally administered salmonid alphavirus. (Doctoral thesis). https://hdl.handle.net/10037/17566 . Scientific Reports info:eu-repo/grantAgreement/RCN/HAVBRUK2/237315/Norway/Fish Virus Vaccines/ViVaFish/ Jenberie, S., Thim, H.L., Sunyer, J.O., Skjødt, K., Jensen, I. & Jørgensen, J.B. (2018). Profiling Atlantic salmon B cell populations: CpG-mediated TLR-ligation enhances IgM secretion and modulates immune gene expression. Scientific Reports, 8(3565). https://doi.org/10.1038/s41598-018-21895-9 FRIDAID 1571761 doi:10.1038/s41598-018-21895-9 2045-2322 https://hdl.handle.net/10037/13446 openAccess VDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920 VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920 Journal article Tidsskriftartikkel Peer reviewed 2018 ftunivtroemsoe https://doi.org/10.1038/s41598-018-21895-9 2021-06-25T17:55:56Z Source at https://doi.org/10.1038/s41598-018-21895-9 . Licensed CC BY-NC-ND 4.0. While TLR-activated pathways are key regulators of B cell responses in mammals, their impact on teleost B cells are scarcely addressed. Here, the potential of Atlantic salmon B cells to respond to TLR ligands was shown by demonstrating a constitutive expression of nucleic-acid sensing TLRs in magnetic sorted IgM + cells. Of the two receptors recognizing CpG in teleosts, tlr9 was the dominating receptor with over ten-fold higher expression than tlr21 . Upon CpG-stimulation, IgM secretion increased for head kidney (HK) and splenic IgM + cells, while blood B cells were marginally affected. The results suggest that CpG directly affects salmon B cells to differentiate into antibody secreting cells (ASCs). IgM secretion was also detected in the non-treated controls, again with the highest levels in the HK derived population, signifying that persisting ASCs are present in this tissue. In all tissues, the IgM + cells expressed high MHCII levels, suggesting antigen-presenting functions. Upon CpG-treatment the co-stimulatory molecules cd83 and cd40 were upregulated, while cd86 was down-regulated under the same conditions. Finally, ifna1 was upregulated upon CpG-stimulation in all tissues, while a restricted upregulation was evident for ifnb , proposing that salmon IgM + B cells exhibit a type I IFN-response. Article in Journal/Newspaper Atlantic salmon University of Tromsø: Munin Open Research Archive Scientific Reports 8 1 |
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University of Tromsø: Munin Open Research Archive |
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English |
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VDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920 VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920 |
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VDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920 VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920 Jenberie, Shiferaw Thim, Hanna Leena Sunyer, J Oriol Skjødt, Karsten Jensen, Ingvill Jørgensen, Jorunn B Profiling Atlantic salmon B cell populations: CpG-mediated TLR-ligation enhances IgM secretion and modulates immune gene expression |
topic_facet |
VDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920 VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920 |
description |
Source at https://doi.org/10.1038/s41598-018-21895-9 . Licensed CC BY-NC-ND 4.0. While TLR-activated pathways are key regulators of B cell responses in mammals, their impact on teleost B cells are scarcely addressed. Here, the potential of Atlantic salmon B cells to respond to TLR ligands was shown by demonstrating a constitutive expression of nucleic-acid sensing TLRs in magnetic sorted IgM + cells. Of the two receptors recognizing CpG in teleosts, tlr9 was the dominating receptor with over ten-fold higher expression than tlr21 . Upon CpG-stimulation, IgM secretion increased for head kidney (HK) and splenic IgM + cells, while blood B cells were marginally affected. The results suggest that CpG directly affects salmon B cells to differentiate into antibody secreting cells (ASCs). IgM secretion was also detected in the non-treated controls, again with the highest levels in the HK derived population, signifying that persisting ASCs are present in this tissue. In all tissues, the IgM + cells expressed high MHCII levels, suggesting antigen-presenting functions. Upon CpG-treatment the co-stimulatory molecules cd83 and cd40 were upregulated, while cd86 was down-regulated under the same conditions. Finally, ifna1 was upregulated upon CpG-stimulation in all tissues, while a restricted upregulation was evident for ifnb , proposing that salmon IgM + B cells exhibit a type I IFN-response. |
format |
Article in Journal/Newspaper |
author |
Jenberie, Shiferaw Thim, Hanna Leena Sunyer, J Oriol Skjødt, Karsten Jensen, Ingvill Jørgensen, Jorunn B |
author_facet |
Jenberie, Shiferaw Thim, Hanna Leena Sunyer, J Oriol Skjødt, Karsten Jensen, Ingvill Jørgensen, Jorunn B |
author_sort |
Jenberie, Shiferaw |
title |
Profiling Atlantic salmon B cell populations: CpG-mediated TLR-ligation enhances IgM secretion and modulates immune gene expression |
title_short |
Profiling Atlantic salmon B cell populations: CpG-mediated TLR-ligation enhances IgM secretion and modulates immune gene expression |
title_full |
Profiling Atlantic salmon B cell populations: CpG-mediated TLR-ligation enhances IgM secretion and modulates immune gene expression |
title_fullStr |
Profiling Atlantic salmon B cell populations: CpG-mediated TLR-ligation enhances IgM secretion and modulates immune gene expression |
title_full_unstemmed |
Profiling Atlantic salmon B cell populations: CpG-mediated TLR-ligation enhances IgM secretion and modulates immune gene expression |
title_sort |
profiling atlantic salmon b cell populations: cpg-mediated tlr-ligation enhances igm secretion and modulates immune gene expression |
publisher |
Nature Publishing Group |
publishDate |
2018 |
url |
https://hdl.handle.net/10037/13446 https://doi.org/10.1038/s41598-018-21895-9 |
genre |
Atlantic salmon |
genre_facet |
Atlantic salmon |
op_relation |
Jenberie, S. (2020). Atlantic salmon B cells- local and systemic responses to intraperitoneally administered salmonid alphavirus. (Doctoral thesis). https://hdl.handle.net/10037/17566 . Scientific Reports info:eu-repo/grantAgreement/RCN/HAVBRUK2/237315/Norway/Fish Virus Vaccines/ViVaFish/ Jenberie, S., Thim, H.L., Sunyer, J.O., Skjødt, K., Jensen, I. & Jørgensen, J.B. (2018). Profiling Atlantic salmon B cell populations: CpG-mediated TLR-ligation enhances IgM secretion and modulates immune gene expression. Scientific Reports, 8(3565). https://doi.org/10.1038/s41598-018-21895-9 FRIDAID 1571761 doi:10.1038/s41598-018-21895-9 2045-2322 https://hdl.handle.net/10037/13446 |
op_rights |
openAccess |
op_doi |
https://doi.org/10.1038/s41598-018-21895-9 |
container_title |
Scientific Reports |
container_volume |
8 |
container_issue |
1 |
_version_ |
1766362198067642368 |