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Sun X, Bao N, Rui C, Xue Y, Fang Q, Zheng T, Lin Z, Liu X, Wang X. Identification of large yellow croakers (Larimichthys crocea) scavenger receptor genes: Involvement in immune response to Pseudomonas plecoglossicida infection and hypoxia-exposure experiments. FISH & SHELLFISH IMMUNOLOGY 2024; 144:109307. [PMID: 38122953 DOI: 10.1016/j.fsi.2023.109307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 12/13/2023] [Accepted: 12/14/2023] [Indexed: 12/23/2023]
Abstract
Scavenger receptors (SRs) are pattern recognition receptors involved in the innate immune defense against pathogen infection in fish. However, there has not been much research done on teleosts. In this study, 18 members of the SR gene family were found in large yellow croaker. The identification of the SR gene family showed that the protein length of SR members in large yellow croaker were quite different, and most SR genes were distributed in nuclear and endoplasmic. The evolutionary relationship, exon/intron structure and motif analysis revealed that members of the SR gene family were highly conserved. The results of the expression profiles after Pseudomonas plecoglossicida infection and hypoxia-exposure demonstrated that SR members were involved in inflammatory reactions. Especially, COLEC12 and SCARF1 exhibited substantial changes in response to both P. plecoglossicida and hypoxia stress, indicating their possible immunological functions. The result of this study revealed that SR genes played a vital part in the innate immune response of large yellow croaker, and would give important details for a deeper comprehension of the SR gene family's regulation mechanism under various conditions in large yellow croaker.
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Affiliation(s)
- Xuanyang Sun
- Key Laboratory of Aquacultural Biotechnology (Ningbo University), Ministry of Education, Ningbo, Zhejiang, China.
| | - Ning Bao
- Key Laboratory of Aquacultural Biotechnology (Ningbo University), Ministry of Education, Ningbo, Zhejiang, China.
| | - Chen Rui
- Key Laboratory of Aquacultural Biotechnology (Ningbo University), Ministry of Education, Ningbo, Zhejiang, China.
| | - Yadong Xue
- Key Laboratory of Aquacultural Biotechnology (Ningbo University), Ministry of Education, Ningbo, Zhejiang, China.
| | - Qian Fang
- Key Laboratory of Aquacultural Biotechnology (Ningbo University), Ministry of Education, Ningbo, Zhejiang, China.
| | - Tianyu Zheng
- Key Laboratory of Aquacultural Biotechnology (Ningbo University), Ministry of Education, Ningbo, Zhejiang, China.
| | - Ziyang Lin
- Key Laboratory of Aquacultural Biotechnology (Ningbo University), Ministry of Education, Ningbo, Zhejiang, China.
| | - Xiumei Liu
- College of Life Sciences, Yantai University, Yantai, China.
| | - Xubo Wang
- Key Laboratory of Aquacultural Biotechnology (Ningbo University), Ministry of Education, Ningbo, Zhejiang, China; National Engineering Research Laboratory of marine Biotechnology and Engineering, Ningbo University, Ningbo, Zhejiang, China; Collaborative Innovation Center for Zhejiang Marine High-efficiency and Healthy Aquaculture, Ningbo University, Ningbo, Zhejiang, China; Key Laboratory of Green Mariculture (Co-construction By Ministry and Province), Ministry of Agriculture and Rural, Ningbo University, China.
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Niu Y, Fu X, Lin Q, Liang H, Luo X, Zuo S, Liu L, Li N. Epidermal growth factor receptor promotes infectious spleen and kidney necrosis virus invasion via PI3K-Akt signaling pathway. J Gen Virol 2023; 104. [PMID: 37561118 DOI: 10.1099/jgv.0.001882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/11/2023] Open
Abstract
Infectious spleen and kidney necrosis virus disease (ISKNVD) caused significant economic losses to the fishery industry. Epidermal growth factor receptor (EGFR), phosphatidylinositide 3-kinase (PI3K) played an important role in ISKNV invasion. However, the molecular regulatory mechanisms among EGFR, PI3K-Akt, and ISKNV invasion are not clear. In this study, ISKNV infection rapidly induced EGFR activation. While, EGFR activation promoted virus entry, but EGFR inhibitors and specific RNA (siRNA) decreased virus invasion. The PI3K-Akt as downstream signalling of EGFR was activated upon ISKNV infection. Consistent with the trends of EGFR, Akt activation increased ISKNV entry into cells, Akt inhibition by specific inhibitor or siRNA decreased ISKNV invasion. Akt silencing combination with EGFR activation showed that EGFR activation regulation ISKNV invasion is required for activation of the Akt signalling pathway. Those data demonstrated that ISKNV-induced EGFR activation positively regulated virus invasion by PI3K-Akt pathway and provided a better understanding of the mechanism of EGFR-PI3K-Akt involved in ISKNV invasion.
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Affiliation(s)
- Yinjie Niu
- Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Key Laboratory of fishery Drug Development, Ministry of Agriculture and Rural Affairs, Key Laboratory of Aquatic Animal Immune Technology of Guangdong Province, Guangzhou 510380, PR China
| | - Xiaozhe Fu
- Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Key Laboratory of fishery Drug Development, Ministry of Agriculture and Rural Affairs, Key Laboratory of Aquatic Animal Immune Technology of Guangdong Province, Guangzhou 510380, PR China
| | - Qiang Lin
- Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Key Laboratory of fishery Drug Development, Ministry of Agriculture and Rural Affairs, Key Laboratory of Aquatic Animal Immune Technology of Guangdong Province, Guangzhou 510380, PR China
| | - Hongru Liang
- Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Key Laboratory of fishery Drug Development, Ministry of Agriculture and Rural Affairs, Key Laboratory of Aquatic Animal Immune Technology of Guangdong Province, Guangzhou 510380, PR China
| | - Xia Luo
- Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Key Laboratory of fishery Drug Development, Ministry of Agriculture and Rural Affairs, Key Laboratory of Aquatic Animal Immune Technology of Guangdong Province, Guangzhou 510380, PR China
| | - Shaozhi Zuo
- Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Key Laboratory of fishery Drug Development, Ministry of Agriculture and Rural Affairs, Key Laboratory of Aquatic Animal Immune Technology of Guangdong Province, Guangzhou 510380, PR China
| | - Lihui Liu
- Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Key Laboratory of fishery Drug Development, Ministry of Agriculture and Rural Affairs, Key Laboratory of Aquatic Animal Immune Technology of Guangdong Province, Guangzhou 510380, PR China
| | - Ningqiu Li
- Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Key Laboratory of fishery Drug Development, Ministry of Agriculture and Rural Affairs, Key Laboratory of Aquatic Animal Immune Technology of Guangdong Province, Guangzhou 510380, PR China
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Cheng YX, Xu WB, Dong WR, Zhang YM, Li BW, Chen DY, Xiao Y, Guo XL, Shu MA. Identification and functional analysis of epidermal growth factor receptor (EGFR) from Scylla paramamosain: The first evidence of two EGFR genes in animal and their involvement in immune defense against pathogen infection. Mol Immunol 2022; 151:143-157. [PMID: 36150275 DOI: 10.1016/j.molimm.2022.08.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 08/01/2022] [Accepted: 08/04/2022] [Indexed: 12/29/2022]
Abstract
The epidermal growth factor receptor (EGFR) is a pleiotropic glycoprotein which plays a role in regulating cell proliferation, migration and differentiation. However, the genetic diversity of EGFR in crustaceans as well as its function, such as whether it is involved in immune regulation, remains obscure. In this study, two EGFR genes, including EGFR1 and EGFR2, and three transcripts were identified and characterized in Scylla Paramamosain for the first time. To our knowledge, this is the first time that more than one EGFR gene was identified in a single species. The complete open reading frames (ORFs) of SpEGFR1, SpEGFR2a and SpEGFR2b were 4377 bp, 4404 bp and 4341 bp encoding deduced proteins of 1458 amino acids (aa), 1467 aa and 1446 aa, respectively. All EGFR had a signal peptide region and two Recep_L_domain region, followed by a transmembrane region and a conserved tyrosine kinase domain (TyrKc), and phylogenetic analysis demonstrated three SpEGFRs clustered together with invertebrate EGFR branch. Tissue specific expression analysis depicted that all SpEGFRs presented similar transcription patterns. The expression levels of SpEGFR1 and SpEGFR2s in hepatopancreas and gills were significantly altered after the stimulation of bacterial and viral pathogens including Staphylococcus aureus, Vibrio alginolyticus, White spot syndromre virus and Polycytidylinic acid. The in vivo RNA interference assays demonstrated that expression levels of SpIKK, two members of NF-κB (SpRelish and SpDorsal) and six antimicrobial peptide (AMP) genes (SpCrustin and SpALF1-5) were significantly reduced when SpEGFR1 or SpEGFR2 was silenced, respectively. The transcription patterns of SpIKK, SpRelish, SpDorsal and AMPs exhibited similar down- or up-regulation trend when the primary cultured hemocytes were treated with EGFR antagonist or agonist for 24 h. These results suggested that SpEGFR might play an important role in innate immune responses to bacterial and viral infections by regulating the NF-κB pathway. It also provided a better understanding of the origin or evolution of EGFR in crustaceans and even invertebrates.
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Affiliation(s)
- Yuan-Xin Cheng
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
| | - Wen-Bin Xu
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
| | - Wei-Ren Dong
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
| | - Yan-Mei Zhang
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
| | - Bing-Wu Li
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
| | - Da-Yong Chen
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
| | - Yi Xiao
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
| | - Xiao-Ling Guo
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, China.
| | - Miao-An Shu
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, China.
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