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The simple neuroendocrine-immune regulatory network in oyster Crassostrea gigas mediates complex functions
Liu, Z.; Wang, L.; Zhou, Z.; Sun, Y.; Wang, M.; Wang, H.; Hou, Z.; Gao, D.; Gao, Q.; Song, L. (2016). The simple neuroendocrine-immune regulatory network in oyster Crassostrea gigas mediates complex functions. NPG Scientific Reports 6(26396): 13 pp. http://hdl.handle.net/10.1038/srep26396
In: Scientific Reports (Nature Publishing Group). Nature Publishing Group: London. ISSN 2045-2322; e-ISSN 2045-2322, more
Peer reviewed article  

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Keyword
    Marine

Authors  Top 
  • Liu, Z.
  • Wang, L.
  • Zhou, Z.
  • Sun, Y.
  • Wang, M.
  • Wang, H.
  • Hou, Z.
  • Gao, D.
  • Gao, Q.
  • Song, L.

Abstract
    The neuroendocrine-immune (NEI) regulatory network is a complex system, which plays an indispensable role in the immunity of the host. In the present study, the bioinformatical analysis of the transcriptomic data from oyster Crassostrea gigas and further biological validation revealed that oyster TNF (CgTNF-1 CGI_10018786) could activate the transcription factors NF-kappa B and HSF (heat shock transcription factor) through MAPK signaling pathway, and then regulate apoptosis, redox reaction, neuro-regulation and protein folding in oyster haemocytes. The activated immune cells then released neurotransmitters including acetylcholine, norepinephrine and [Met(5)]-enkephalin to regulate the immune response by arising the expression of three TNF (CGI_10005109, CGI_10005110 and CGI_10006440) and translocating two NF-kappa B (Cgp65, CGI_10018142 and CgRel, CGI_10021567) between the cytoplasm and nuclei of haemocytes. Neurotransmitters exhibited the immunomodulation effects by influencing apoptosis and phagocytosis of oyster haemocytes. Acetylcholine and norepinephrine could down-regulate the immune response, while [Met(5)]-enkephalin up-regulate the immune response. These results suggested that the simple neuroendocrine-immune regulatory network in oyster might be activated by oyster TNF and then regulate the immune response by virtue of neurotransmitters, cytokines and transcription factors.

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