Two novel LRR and Ig domain-containing proteins from oyster Crassostrea gigas function as pattern recognition receptors and induce expression of cytokines
Leucine-rich repeat (LRR) domain and immunoglobulin (Ig) domain are both competent immune recognition modules, and the immunological roles of LRR and Ig domain containing-proteins (LRRIGs) are speculated to be multifunctional and worth investigating. In the present study, two novel LRRIGs, CgLRRIG-1...
Published in: | Fish & Shellfish Immunology |
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ftchinacasciocas:oai:ir.qdio.ac.cn:337002/143293 2023-05-15T15:57:44+02:00 Two novel LRR and Ig domain-containing proteins from oyster Crassostrea gigas function as pattern recognition receptors and induce expression of cytokines Wang, Xiudan Wang, Mengqiang Xu, Qingsong Xu, Jiachao Lv, Zhao Wang, Lingling Song, Linsheng 2017-11-01 http://ir.qdio.ac.cn/handle/337002/143293 https://doi.org/10.1016/j.fsi.2017.09.023 英语 eng FISH & SHELLFISH IMMUNOLOGY Wang, Xiudan,Wang, Mengqiang,Xu, Qingsong,et al. Two novel LRR and Ig domain-containing proteins from oyster Crassostrea gigas function as pattern recognition receptors and induce expression of cytokines[J]. FISH & SHELLFISH IMMUNOLOGY,2017,70:308-318. http://ir.qdio.ac.cn/handle/337002/143293 doi:10.1016/j.fsi.2017.09.023 Crassostrea Gigas Leucine-rich Repeat Domain Immunoglobulin Domain Pattern Recognition Receptor Innate Immunity Article 期刊论文 2017 ftchinacasciocas https://doi.org/10.1016/j.fsi.2017.09.023 2022-06-27T05:38:16Z Leucine-rich repeat (LRR) domain and immunoglobulin (Ig) domain are both competent immune recognition modules, and the immunological roles of LRR and Ig domain containing-proteins (LRRIGs) are speculated to be multifunctional and worth investigating. In the present study, two novel LRRIGs, CgLRRIG-1 and CgLRRIG-2, were identified and characterized from oyster Crassostrea gigas. Both of them contained an N-terminal LRR region, an Ig domain, a transmembrane region, and a C-terminal cytoplasmic tail. The mRNA transcripts of CgLRRIG-1 and CgLRRIG-2 were constitutively expressed in muscle, gill, hepatopancreas, mantle, gonad and hemocytes with the highest expression level in hepatopancreas. Their mRNA expression levels in hemocytes were significantly up-regulated after the stimulations with four PAMPs including peptidoglycan (PGN), lipopolysaccharide (LPS), glucan (GLU) and polyinosinic-polycytidylic acid (poly I:C) and one bacteria Vibrio anguillarum. The recombinant proteins, rCgLRRIG-1 and rCgLRRIG-2, could bind to PGN, LPS, GLU and poly I:C, and rCgLRRIG-2 exhibited higher binding affinity. Additionally, rCgLRRIG-1 and rCgLRRIG-2 could significantly induce the expression of CgTNF-1 and CgIL17-5 in cultured oyster hemocytes, and the activity of rCgLRRIG-2 was higher than that of rCgLRRIG-1. All these results indicated that CgLRRIG-1 and CgLRRIG-2 could function as immune effectors or pro-inflammatory factors as well as PRRs in oyster. (C) 2017 Elsevier Ltd. All rights reserved. Article in Journal/Newspaper Crassostrea gigas Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR Fish & Shellfish Immunology 70 308 318 |
institution |
Open Polar |
collection |
Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR |
op_collection_id |
ftchinacasciocas |
language |
English |
topic |
Crassostrea Gigas Leucine-rich Repeat Domain Immunoglobulin Domain Pattern Recognition Receptor Innate Immunity |
spellingShingle |
Crassostrea Gigas Leucine-rich Repeat Domain Immunoglobulin Domain Pattern Recognition Receptor Innate Immunity Wang, Xiudan Wang, Mengqiang Xu, Qingsong Xu, Jiachao Lv, Zhao Wang, Lingling Song, Linsheng Two novel LRR and Ig domain-containing proteins from oyster Crassostrea gigas function as pattern recognition receptors and induce expression of cytokines |
topic_facet |
Crassostrea Gigas Leucine-rich Repeat Domain Immunoglobulin Domain Pattern Recognition Receptor Innate Immunity |
description |
Leucine-rich repeat (LRR) domain and immunoglobulin (Ig) domain are both competent immune recognition modules, and the immunological roles of LRR and Ig domain containing-proteins (LRRIGs) are speculated to be multifunctional and worth investigating. In the present study, two novel LRRIGs, CgLRRIG-1 and CgLRRIG-2, were identified and characterized from oyster Crassostrea gigas. Both of them contained an N-terminal LRR region, an Ig domain, a transmembrane region, and a C-terminal cytoplasmic tail. The mRNA transcripts of CgLRRIG-1 and CgLRRIG-2 were constitutively expressed in muscle, gill, hepatopancreas, mantle, gonad and hemocytes with the highest expression level in hepatopancreas. Their mRNA expression levels in hemocytes were significantly up-regulated after the stimulations with four PAMPs including peptidoglycan (PGN), lipopolysaccharide (LPS), glucan (GLU) and polyinosinic-polycytidylic acid (poly I:C) and one bacteria Vibrio anguillarum. The recombinant proteins, rCgLRRIG-1 and rCgLRRIG-2, could bind to PGN, LPS, GLU and poly I:C, and rCgLRRIG-2 exhibited higher binding affinity. Additionally, rCgLRRIG-1 and rCgLRRIG-2 could significantly induce the expression of CgTNF-1 and CgIL17-5 in cultured oyster hemocytes, and the activity of rCgLRRIG-2 was higher than that of rCgLRRIG-1. All these results indicated that CgLRRIG-1 and CgLRRIG-2 could function as immune effectors or pro-inflammatory factors as well as PRRs in oyster. (C) 2017 Elsevier Ltd. All rights reserved. |
format |
Article in Journal/Newspaper |
author |
Wang, Xiudan Wang, Mengqiang Xu, Qingsong Xu, Jiachao Lv, Zhao Wang, Lingling Song, Linsheng |
author_facet |
Wang, Xiudan Wang, Mengqiang Xu, Qingsong Xu, Jiachao Lv, Zhao Wang, Lingling Song, Linsheng |
author_sort |
Wang, Xiudan |
title |
Two novel LRR and Ig domain-containing proteins from oyster Crassostrea gigas function as pattern recognition receptors and induce expression of cytokines |
title_short |
Two novel LRR and Ig domain-containing proteins from oyster Crassostrea gigas function as pattern recognition receptors and induce expression of cytokines |
title_full |
Two novel LRR and Ig domain-containing proteins from oyster Crassostrea gigas function as pattern recognition receptors and induce expression of cytokines |
title_fullStr |
Two novel LRR and Ig domain-containing proteins from oyster Crassostrea gigas function as pattern recognition receptors and induce expression of cytokines |
title_full_unstemmed |
Two novel LRR and Ig domain-containing proteins from oyster Crassostrea gigas function as pattern recognition receptors and induce expression of cytokines |
title_sort |
two novel lrr and ig domain-containing proteins from oyster crassostrea gigas function as pattern recognition receptors and induce expression of cytokines |
publishDate |
2017 |
url |
http://ir.qdio.ac.cn/handle/337002/143293 https://doi.org/10.1016/j.fsi.2017.09.023 |
genre |
Crassostrea gigas |
genre_facet |
Crassostrea gigas |
op_relation |
FISH & SHELLFISH IMMUNOLOGY Wang, Xiudan,Wang, Mengqiang,Xu, Qingsong,et al. Two novel LRR and Ig domain-containing proteins from oyster Crassostrea gigas function as pattern recognition receptors and induce expression of cytokines[J]. FISH & SHELLFISH IMMUNOLOGY,2017,70:308-318. http://ir.qdio.ac.cn/handle/337002/143293 doi:10.1016/j.fsi.2017.09.023 |
op_doi |
https://doi.org/10.1016/j.fsi.2017.09.023 |
container_title |
Fish & Shellfish Immunology |
container_volume |
70 |
container_start_page |
308 |
op_container_end_page |
318 |
_version_ |
1766393433459523584 |