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The enkephalinergic nervous system and its immunomodulation on the developing immune system during the ontogenesis of oyster Crassostrea gigas
Liu, Zhaoqun1,3; Zhou, Zhi1; Wang, Lingling1; Song, Xiaorui1,3; Chen, Hao1,3; Wang, Weilin1,3; Liu, Rui1; Wang, Mengqiang1; Wang, Hao1; Song, Linsheng1,2
2015-08-01
发表期刊FISH & SHELLFISH IMMUNOLOGY
卷号45期号:2页码:250-259
文章类型Article
摘要Enkephalinergic neuroendocrine-immune regulatory system is one of the most important neuroendocrine-immune systems in both vertebrates and invertebrates for its significant role in the immune regulation. In the present study, the early onset of enkephalinergic nervous system and its immunomodulation on the developing immune system during the ontogenesis of oyster Crassostrea gigas were investigated to illustrate the function of neural regulation on the innate immune system in oyster larvae. [Met(5)]-enkephalin (Met-ENK) was firstly observed on the marginal of the dorsal half of D-hinged larvae. Six immune-related molecules, including four PRRs (CgCTL-1, CgCTL-2, CgCTL-4, CgNatterin-3) and two immune effectors (CgTNF-1 and CgEcSOD) were detected in the early developmental stages of trochophore, D-hinged and umbo larvae of oyster. After incubated with [Met(5)]-enkephalin, the mRNA expression level of all the PRRs changed significantly (p < 0.05). In trochophore larvae, the expression level of CgNatterin-3 decreased dramatically (p < 0.05) at 6 h, and the expression level of CgCTL-4 was significantly down-regulated at 3 h and 6 h (p < 0.05), respectively. In D-hinged and umbo larvae, only CgCTL-1 was significantly down-regulated and the differences were significant at 3 h and 6 h (p < 0.05), while the expression level of CgCTL-2 and CgCTL-4 increased significantly at 3 h after treatment (p < 0.05). Moreover, the expression levels of immune effectors were up-regulated significantly at 3 h and 6 h in trochophore larvae (p < 0.05). The expression level of CgTNF-1 in both blank and experiment groups was up-regulated but there was no significant difference in D-hinged larvae stage. On the contrary, the expression level of CgEcSOD in D-hinged larvae decreased dramatically at 3 h and 6 h after [Met(5)]-enkephalin incubation (p < 0.05). In umbo larvae, the expression level of CgTNF-1 and CgEcSOD in the experiment group increased significantly at 6 h after [Met(5)]-enkephalin treatment (p < 0.05), while no significant difference was found in the blank group. In addition, the anti-bacterial activities of the total protein extract from trochophore, D-hinged and umbo larvae increased significantly (p < 0.05) at both 3 h and 6 h after [Met(5)]-enkephalin incubation compared to that in the blank group, and PO activities of both D-hinged and umbo larvae total protein extract increased significantly (p < 0.05) while no significant difference was observed in trochophore larvae. The PO activities of the total protein extract in all the experiment groups decreased after the treatment with [Met(5)]-enkephalin for 6 h, but no significant difference was observed when compared to the blank group. Furthermore, after incubation for 6 h, the concentration of both CgTNF-1 and CgIL17-5 increased dramatically compared to that in the blank group (p < 0.05). These results together indicated that the enkephalinergic nervous system of oyster was firstly appeared in D-hinged larvae, while the primitive immune defense system existed in the region of prototroch in trochophore larvae and developed maturely after D-hinged larvae. The developing immune system could be regulated by the neurotransmitter [Met(5)]-enkephalin released by the neuroendocrine system in oyster C. gigas. (C) 2015 Elsevier Ltd. All rights reserved.
关键词Crassostrea Gigas Enkephalinergic Nervous System Larvae Development Immune Defense System
DOI10.1016/j.fsi.2015.03.041
收录类别SCI
语种英语
WOS记录号WOS:000358626800006
引用统计
被引频次:14[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.qdio.ac.cn/handle/337002/49787
专题实验海洋生物学重点实验室
作者单位1.Chinese Acad Sci, Inst Oceanol, Key Lab Expt Marine Biol, Qingdao 266071, Peoples R China
2.Dalian Ocean Univ, Dalian 116023, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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GB/T 7714
Liu, Zhaoqun,Zhou, Zhi,Wang, Lingling,et al. The enkephalinergic nervous system and its immunomodulation on the developing immune system during the ontogenesis of oyster Crassostrea gigas[J]. FISH & SHELLFISH IMMUNOLOGY,2015,45(2):250-259.
APA Liu, Zhaoqun.,Zhou, Zhi.,Wang, Lingling.,Song, Xiaorui.,Chen, Hao.,...&Song, Linsheng.(2015).The enkephalinergic nervous system and its immunomodulation on the developing immune system during the ontogenesis of oyster Crassostrea gigas.FISH & SHELLFISH IMMUNOLOGY,45(2),250-259.
MLA Liu, Zhaoqun,et al."The enkephalinergic nervous system and its immunomodulation on the developing immune system during the ontogenesis of oyster Crassostrea gigas".FISH & SHELLFISH IMMUNOLOGY 45.2(2015):250-259.
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