A novel siglec (CgSiglec-1) from the Pacific oyster (Crassostrea gigas) with broad recognition spectrum and inhibitory activity to apoptosis, phagocytosis and cytokine release
文献类型：期刊论文
| 作者 | Liu, Conghui1,3 ; Jiang, Shuai1; Wang, Mengqiang1; Wang, Lingling1; Chen, Hao1,3; Xu, Jiachao1,3; Lv, Zhao1,3; Song, Linsheng1,2
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| 刊名 | DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY
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| 出版日期 | 2016-08-01 |
| 卷号 | 61页码:136-144 |
| 关键词 | Sialic acid binding immunoglobulin-type lectins Innate immune response Recognition spectrum Cascading inhibitory Phagocytosis |
| 英文摘要 | Sialic acid binding immunoglobulin-type lectin (siglec) belongs to the immunoglobulin superfamily (IgSF), which acts as regulator involved in glycan recognition and signal transduction in the immune and nervous systems. In the present study, a siglec gene (designated CgSiglec-1) was characterized from the Pacific oyster, Crassostrea gigas. The cDNA of CgSiglec-1 was of 1251 bp encoding a predicted polypeptide of 416 amino acids. CgSiglec-1 was composed of two I-set immunoglobulin (Ig) domains, one trans membrane (TM) domain and two ITIM motifs, sharing a sequence similarity with vertebrate CD22 homologs. The mRNA expression of CgSiglec-1 could be detected in all the selected tissues, with the highest level in hemocytes and labial palps. The confocal analysis revealed that CgSiglec-1 mainly distributed on the cytoplasmic membrane of the oyster hemocytes. In addition, the mRNA transcripts of CgSiglec-1 in hemocytes increased significantly (4.29-fold to that of control group, p < 0.05) after Vibrio splendidus stimulation. The recombinant CgSiglec-1 protein (rCgSiglec-1) could bind to poly sialic acid (pSIAS), lipopolysaccharides (LPS) and peptidoglycan (PGN) in a dose-dependent manner. The blockade of CgSiglec-1 by specific polyclonal antibodies could enhance the LPS-induced cell apoptosis, phagocytosis towards V. splendidus and the release of cytokines, such as CgTNF-1, CgIFNLP and CgIL-17. The results collectively indicated that CgSiglec-1 could act as a bridge molecule between invader recognition and signal transduction cascade, and modulate the immune response by inhibiting various important processes of immunity in oyster. (C) 2016 Elsevier Ltd. All rights reserved. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000376804300015 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/126230]  |
| 专题 | 海洋研究所_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, Minist Agr, Key Lab Mariculture & Stock Enhancement North Chi, Dalian 116023, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Conghui,Jiang, Shuai,Wang, Mengqiang,et al. A novel siglec (CgSiglec-1) from the Pacific oyster (Crassostrea gigas) with broad recognition spectrum and inhibitory activity to apoptosis, phagocytosis and cytokine release[J]. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY,2016,61:136-144. |
| APA | Liu, Conghui.,Jiang, Shuai.,Wang, Mengqiang.,Wang, Lingling.,Chen, Hao.,...&Song, Linsheng.(2016).A novel siglec (CgSiglec-1) from the Pacific oyster (Crassostrea gigas) with broad recognition spectrum and inhibitory activity to apoptosis, phagocytosis and cytokine release.DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY,61,136-144. |
| MLA | Liu, Conghui,et al."A novel siglec (CgSiglec-1) from the Pacific oyster (Crassostrea gigas) with broad recognition spectrum and inhibitory activity to apoptosis, phagocytosis and cytokine release".DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 61(2016):136-144. |
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来源：海洋研究所
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