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Ren Y, Kong M, Sun H, Zhao B, Wu H, Chen Z, Qi J, Liu J, Zhang Q. Genome-wide identification, characterization and expression profiling of TLR family genes in Chromileptesaltivelis. FISH & SHELLFISH IMMUNOLOGY 2024; 151:109720. [PMID: 38945413 DOI: 10.1016/j.fsi.2024.109720] [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: 04/21/2024] [Revised: 06/12/2024] [Accepted: 06/21/2024] [Indexed: 07/02/2024]
Abstract
Toll-like receptors (TLRs) represent a prominent category of pattern recognition receptors that have been extensively investigated for their pivotal role in combating pathogen incursions. Despite this, there has been a notable absence of comprehensive identification and exploration of the immune response associated with the TLR family genes in C. altivelis. This study successfully identified and named fourteen genes as Catlr1-1, Catlr1-2, Catlr2-1, Catlr2-2, Catlr3, Catlr5, Catlr7, Catlr8, Catlr9, Catlr13-1, Catlr13-2, Catlr18, Catlr21, and Catlr22. A series of bioinformatic analysis were performed, encompassing analysis of protein properties, examination of gene structures, evolutionary assessments, and prediction of protein tertiary structures. The expression patterns of Catlr genes were analyzed in five immune tissues: liver, spleen, kidney, gill, and intestine, in both healthy and bacterial stimulated-fish. The results showed that different tissue and different genes showed differed expression patterns after V. harveyi infection, indicating the involvement of all Catlr members in mounting immune responses following infection in various tissues. Additionally, histological evaluations of immune tissues unveiled varying levels of damage. In conclusion, this investigation into the TLR gene family offers novel information that contribute to a more profound comprehension of the immune response mechanisms in C. altivelis.
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Affiliation(s)
- Yanjie Ren
- Key Laboratory of Tropical Aquatic Germplasm of Hainan Province, Sanya Oceanographic Institution, Ocean University of China, Sanya, 572025, China.
| | - Miao Kong
- Key Laboratory of Tropical Aquatic Germplasm of Hainan Province, Sanya Oceanographic Institution, Ocean University of China, Sanya, 572025, China.
| | - Huibang Sun
- Key Laboratory of Tropical Aquatic Germplasm of Hainan Province, Sanya Oceanographic Institution, Ocean University of China, Sanya, 572025, China.
| | - Benqi Zhao
- Key Laboratory of Tropical Aquatic Germplasm of Hainan Province, Sanya Oceanographic Institution, Ocean University of China, Sanya, 572025, China.
| | - Hanwei Wu
- Key Laboratory of Tropical Aquatic Germplasm of Hainan Province, Sanya Oceanographic Institution, Ocean University of China, Sanya, 572025, China.
| | - Zhennian Chen
- Hainan Chenhai Aquatic Co., Ltd, Sanya, 572025, China.
| | - Jie Qi
- Key Laboratory of Tropical Aquatic Germplasm of Hainan Province, Sanya Oceanographic Institution, Ocean University of China, Sanya, 572025, China; Key Laboratory of Marine Genetics and Breeding, Ministry of Education, Ocean University of China, Qingdao, Shandong, 266003, China.
| | - Jinxiang Liu
- Key Laboratory of Tropical Aquatic Germplasm of Hainan Province, Sanya Oceanographic Institution, Ocean University of China, Sanya, 572025, China; Key Laboratory of Marine Genetics and Breeding, Ministry of Education, Ocean University of China, Qingdao, Shandong, 266003, China.
| | - Quanqi Zhang
- Key Laboratory of Tropical Aquatic Germplasm of Hainan Province, Sanya Oceanographic Institution, Ocean University of China, Sanya, 572025, China; Key Laboratory of Marine Genetics and Breeding, Ministry of Education, Ocean University of China, Qingdao, Shandong, 266003, China.
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Wang K, Huang H, Zhan Q, Ding H, Li Y. Toll-like receptors in health and disease. MedComm (Beijing) 2024; 5:e549. [PMID: 38685971 PMCID: PMC11057423 DOI: 10.1002/mco2.549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 03/17/2024] [Accepted: 03/26/2024] [Indexed: 05/02/2024] Open
Abstract
Toll-like receptors (TLRs) are inflammatory triggers and belong to a family of pattern recognition receptors (PRRs) that are central to the regulation of host protective adaptive immune responses. Activation of TLRs in innate immune myeloid cells directs lymphocytes to produce the most appropriate effector responses to eliminate infection and maintain homeostasis of the body's internal environment. Inappropriate TLR stimulation can lead to the development of general autoimmune diseases as well as chronic and acute inflammation, and even cancer. Therefore, TLRs are expected to be targets for therapeutic treatment of inflammation-related diseases, autoimmune diseases, microbial infections, and human cancers. This review summarizes the recent discoveries in the molecular and structural biology of TLRs. The role of different TLR signaling pathways in inflammatory diseases, autoimmune diseases such as diabetes, cardiovascular diseases, respiratory diseases, digestive diseases, and even cancers (oral, gastric, breast, colorectal) is highlighted and summarizes new drugs and related clinical treatments in clinical trials, providing an overview of the potential and prospects of TLRs for the treatment of TLR-related diseases.
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Affiliation(s)
- Kunyu Wang
- Department of Head and Neck Oncology Surgery, State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral DiseasesWest China Hospital of StomatologySichuan UniversityChengduChina
| | - Hanyao Huang
- Department of Oral and Maxillofacial Surgery, State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral DiseasesWest China Hospital of StomatologySichuan UniversityChengduSichuanChina
| | - Qi Zhan
- Department of Head and Neck Oncology Surgery, State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral DiseasesWest China Hospital of StomatologySichuan UniversityChengduChina
| | - Haoran Ding
- Department of Head and Neck Oncology Surgery, State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral DiseasesWest China Hospital of StomatologySichuan UniversityChengduChina
| | - Yi Li
- Department of Head and Neck Oncology Surgery, State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral DiseasesWest China Hospital of StomatologySichuan UniversityChengduChina
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He L, Yu X, Zhao Y, Lin H, Zhang Y, Lu D. TLR5S negatively regulates the TLR5M-mediated NF-κB signaling pathway in Epinephelus coioides. Int J Biol Macromol 2023; 249:126048. [PMID: 37517756 DOI: 10.1016/j.ijbiomac.2023.126048] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 07/14/2023] [Accepted: 07/27/2023] [Indexed: 08/01/2023]
Abstract
Nuclear factor kappa-B (NF-κB) pathway is a key mediator of inflammation response that plays a role in host defense for pathogen elimination, but excessive activation may lead to tissue damage or pathogen transmission. The negative regulation of NF-κB in lower vertebrates is largely unknown, hindering further understanding of immune signaling evolution. Here, we provided evidence that Epinephelus coioides soluble toll-like receptor 5 (TLR5S), a member of the TLR5 subfamily, has been newly identified as a negative regulator of NF-κB signaling. EcTLR5S was a cytoplasmic protein consisting of 17 leucine-rich repeat domains, which specifically responded to Vibrio flagellin and suppressed flagellin-induced NF-κB signaling activation and cytokine expression. The amino-terminal LRR 1-5 region was necessary for its negative regulatory function. Dual-luciferase reporter assay showed that EcTLR5S significantly inhibited the NF-κB-luc activity induced by inhibitor of NF-κB kinase α (IKKα) and IKKβ. Subsequently, the functional relationship between EcTLR5M and EcTLR5S was analyzed, revealing that the negative regulatory function of EcTLR5S targeted the activation of the NF-κB pathway mediated by EcTLR5M. The above results reveal that EcTLR5S negatively regulates the flagellin-induced EcTLR5M-NF-κB pathway activation, which may prevent over-activation of immune signaling and restore homeostasis.
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Affiliation(s)
- Liangge He
- State Key Laboratory of Biocontrol and School of Life Sciences, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Guangdong Provincial Key Laboratory for Aquatic Economic Animals, Guangdong Provincial Engineering Technology Research Center for Healthy Breeding of Important Economic Fish, Sun Yat-Sen University, Guangzhou 510275, PR China
| | - Xue Yu
- State Key Laboratory of Biocontrol and School of Life Sciences, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Guangdong Provincial Key Laboratory for Aquatic Economic Animals, Guangdong Provincial Engineering Technology Research Center for Healthy Breeding of Important Economic Fish, Sun Yat-Sen University, Guangzhou 510275, PR China
| | - Yulin Zhao
- State Key Laboratory of Biocontrol and School of Life Sciences, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Guangdong Provincial Key Laboratory for Aquatic Economic Animals, Guangdong Provincial Engineering Technology Research Center for Healthy Breeding of Important Economic Fish, Sun Yat-Sen University, Guangzhou 510275, PR China
| | - Haoran Lin
- State Key Laboratory of Biocontrol and School of Life Sciences, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Guangdong Provincial Key Laboratory for Aquatic Economic Animals, Guangdong Provincial Engineering Technology Research Center for Healthy Breeding of Important Economic Fish, Sun Yat-Sen University, Guangzhou 510275, PR China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266235, PR China; College of Ocean, Hainan University, Haikou 570228, PR China
| | - Yong Zhang
- State Key Laboratory of Biocontrol and School of Life Sciences, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Guangdong Provincial Key Laboratory for Aquatic Economic Animals, Guangdong Provincial Engineering Technology Research Center for Healthy Breeding of Important Economic Fish, Sun Yat-Sen University, Guangzhou 510275, PR China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266235, PR China; Guangdong South China Sea Key Laboratory of Aquaculture for Aquatic Economic Animals, Fisheries College, Guangdong Ocean University, Zhanjiang 524088, PR China
| | - Danqi Lu
- State Key Laboratory of Biocontrol and School of Life Sciences, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Guangdong Provincial Key Laboratory for Aquatic Economic Animals, Guangdong Provincial Engineering Technology Research Center for Healthy Breeding of Important Economic Fish, Sun Yat-Sen University, Guangzhou 510275, PR China.
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Yao T, Wang R, Han P, Liu X, Wang X. Identification of olive flounder (Paralichthys olivaceus) toll-like receptor genes: Involvement in immune response to temperature stress and Edwardsiella tarda infection. FISH & SHELLFISH IMMUNOLOGY 2023; 138:108841. [PMID: 37209756 DOI: 10.1016/j.fsi.2023.108841] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 05/10/2023] [Accepted: 05/17/2023] [Indexed: 05/22/2023]
Abstract
Toll-like receptor (TLR) genes are best known for their roles in the innate immune defense. However, studies focusing on the reaction mechanisms of TLR genes in olive flounder (Paralichthys olivaceus) immune responses are still limited. In this study, 11 TLR family members (PoTLRs) were identified and classified from P. olivaceus genome. Phylogenetic analysis showed that PoTLRs were highly conserved in olive flounder. The analysis of motif prediction and gene structure indicated that TLRs had high sequence similarity. The expression patterns in developmental stages and different tissues showed that TLR members were spatially and temporally specific. RNA-Seq analysis of temperature stress and Edwardsiella tarda infection suggested that TLR members were involved in inflammatory responses, PoTLR5b and PoTLR22 showed significant differences in response to both temperature stress and E. tarda stress, indicating their potential immune functions. The results of this study suggested that TLR genes played important roles in the innate immune response of olive flounder, and would provide a solid basis for further study of their functions.
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Affiliation(s)
- Tingyan Yao
- Key Laboratory of Aquacultural Biotechnology (Ningbo University), Ministry of Education, Ningbo, 315832, China; National Engineering Research Laboratory of Marine Biotechnology and Engineering, Ningbo University, 315832, China; Collaborative Innovation Center for Zhejiang Marine High-efficiency and Healthy Aquaculture, Ningbo University, 315832, China; Key Laboratory of Marine Biotechnology of Zhejiang Province, Ningbo University, Ningbo, 315832, China; Key Laboratory of Green Mariculture (Co-construction By Ministry and Province), Ministry of Agriculture and Rural, Ningbo University, 315832, China.
| | - Ruoxin Wang
- Key Laboratory of Aquacultural Biotechnology (Ningbo University), Ministry of Education, Ningbo, 315832, China.
| | - Ping Han
- Key Laboratory of Aquacultural Biotechnology (Ningbo University), Ministry of Education, Ningbo, 315832, China.
| | - Xiumei Liu
- College of Life Sciences, Yantai University, Yantai, 264005, China.
| | - Xubo Wang
- Key Laboratory of Aquacultural Biotechnology (Ningbo University), Ministry of Education, Ningbo, 315832, China; National Engineering Research Laboratory of Marine Biotechnology and Engineering, Ningbo University, 315832, China; Collaborative Innovation Center for Zhejiang Marine High-efficiency and Healthy Aquaculture, Ningbo University, 315832, China; Key Laboratory of Marine Biotechnology of Zhejiang Province, Ningbo University, Ningbo, 315832, China; Key Laboratory of Green Mariculture (Co-construction By Ministry and Province), Ministry of Agriculture and Rural, Ningbo University, 315832, China.
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Zha S, Zhang W, Liu H, Huang S, Sun C, Bao Y. Two common nanoparticles exert immunostimulatory and protective effects in Tegillarca granosa against Vibrio parahaemolyticus. FISH & SHELLFISH IMMUNOLOGY 2023; 137:108774. [PMID: 37105426 DOI: 10.1016/j.fsi.2023.108774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 04/19/2023] [Accepted: 04/24/2023] [Indexed: 05/03/2023]
Abstract
There are many studies revealed that metal-based nanoparticles (NPs) possess excellent bactericidal effect on multitudinous bacteria and fungi. However, the control effect of NPs as antimicrobial agents to against Vibrio parahaemolyticus infection remain in poorly understood for blood clam, Tegillarca granosa. In order to evaluate the effect, the changes in six physiological parameters and the immune-related genes expression of clams exposed to V. parahaemolyticus alone or along with NPs (nZnO or nCuO) were investigated in present study. Results showed that both tested NPs exerted prominent redemptive or mitigative effect in an inverse dose-dependent way on physiological indexes of clam, especially in the total counts, phagocytosis and the cell viability of haemocytes, as well as the concentration and activity of lysozymes, when co-exposed with Vibrio. Gene expression analysis showed NPs at a concentration of 0.1 mg/L generally mitigated the downregulation of immune-related genes after clam exposure to V. parahaemolyticus. The combination of 0.1 mg/mL nZnO and nCuO additives has been shown to significantly enhance the humoral immunity of blood clam, suggesting its potential as a protective measure against V. parahaemolyticus infection in T. granosa.
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Affiliation(s)
- Shanjie Zha
- Zhejiang Key Laboratory of Aquatic Germplasm Resources, College of Biological & Environmental Sciences, Zhejiang Wanli University, Ningbo, 315100, PR China; Ninghai Institute of Mariculture Breeding and Seed Industry, Zhejiang Wanli University, Ningbo, 315604, PR China
| | - Weifeng Zhang
- Zhejiang Key Laboratory of Aquatic Germplasm Resources, College of Biological & Environmental Sciences, Zhejiang Wanli University, Ningbo, 315100, PR China; School of Marine Sciences, Ningbo University, Ningbo, 315823, PR China
| | - Hongxing Liu
- Zhejiang Key Laboratory of Aquatic Germplasm Resources, College of Biological & Environmental Sciences, Zhejiang Wanli University, Ningbo, 315100, PR China; Ninghai Institute of Mariculture Breeding and Seed Industry, Zhejiang Wanli University, Ningbo, 315604, PR China
| | - Siyi Huang
- Zhejiang Key Laboratory of Aquatic Germplasm Resources, College of Biological & Environmental Sciences, Zhejiang Wanli University, Ningbo, 315100, PR China
| | - Changsen Sun
- Ninghai Institute of Mariculture Breeding and Seed Industry, Zhejiang Wanli University, Ningbo, 315604, PR China
| | - Yongbo Bao
- Zhejiang Key Laboratory of Aquatic Germplasm Resources, College of Biological & Environmental Sciences, Zhejiang Wanli University, Ningbo, 315100, PR China; Ninghai Institute of Mariculture Breeding and Seed Industry, Zhejiang Wanli University, Ningbo, 315604, PR China.
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Wei XY, Wang J, Guo ST, Lv YY, Li YP, Qin CJ, Zou YC, Shi QC, Hu P, Xiong XQ, He Y, Li R, Huang ZJ, Chen DX, Wen ZY. Molecular characterization of a teleost-specific toll-like receptor 22 (tlr22) gene from yellow catfish (Pelteobagrus fulvidraco) and its transcriptional change in response to poly I:C and Aeromonas hydrophila stimuli. FISH & SHELLFISH IMMUNOLOGY 2023; 134:108579. [PMID: 36738947 DOI: 10.1016/j.fsi.2023.108579] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 01/31/2023] [Accepted: 02/02/2023] [Indexed: 06/18/2023]
Abstract
Toll-like receptors (TLRs) are a class of pattern recognition receptors (PRRs) that can recognize pathogen-associated molecular patterns (PMPs) and play important roles in the innate immune system in vertebrates. In this study, we identified a teleost-specific tlr22 gene from yellow catfish (Pelteobagrus fulvidraco) and its immune roles in response to different pathogens were also determined. The open reading frame (ORF) of the tlr22 was 2892 bp in length, encoding a protein of 963 amino acids. Multiple protein sequences alignment, secondary and three-dimensional structure analyses revealed that TLR22 is highly conserved among different fish species. Phylogenetic analysis showed that the phylogenetic topology was divided into six families of TLR1, TLR3, TLR4, TLR5, TLR7 and TLR11, and TLR22 subfamily was clustered into TLR11 family. Meanwhile, synteny and gene structure comparisons revealed functional and evolutionary conservation of the tlr22 gene in teleosts. Furthermore, tlr22 gene was shown to be widely expressed in detected tissues except barbel and eye, with highest expression level in liver. The transcription of tlr22 was significantly increased in spleen, kidney, liver and gill tissues at different timepoints after Poly I:C infection, suggesting TLR22 plays critical roles in defensing virus invasion. Similarly, the transcription of tlr22 was also dramatically up-regulated in spleen, kidney and gill tissues with different patterns after Aeromonas hydrophila infection, indicating that TLR22 is also involved in resisting bacteria invasion. Our findings will provide a solid basis for the investigation the immune functions of tlr22 gene in teleosts, as well as provide useful information for disease control and treatment for yellow catfish.
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Affiliation(s)
- Xiu-Ying Wei
- College of Animal Science, Guizhou University, Guiyang, Guizhou, 550025, China; Key Laboratory of Sichuan Province for Fishes Conservation and Utilization in the Upper Reaches of the Yangtze River, Neijiang Normal University, Neijiang, 641100, China; College of Life Science, Neijiang Normal University, Neijiang, 641100, China
| | - Jun Wang
- Key Laboratory of Sichuan Province for Fishes Conservation and Utilization in the Upper Reaches of the Yangtze River, Neijiang Normal University, Neijiang, 641100, China; College of Life Science, Neijiang Normal University, Neijiang, 641100, China
| | - Sheng-Tao Guo
- Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, China
| | - Yun-Yun Lv
- Key Laboratory of Sichuan Province for Fishes Conservation and Utilization in the Upper Reaches of the Yangtze River, Neijiang Normal University, Neijiang, 641100, China; College of Life Science, Neijiang Normal University, Neijiang, 641100, China
| | - Yan-Ping Li
- Key Laboratory of Sichuan Province for Fishes Conservation and Utilization in the Upper Reaches of the Yangtze River, Neijiang Normal University, Neijiang, 641100, China; College of Life Science, Neijiang Normal University, Neijiang, 641100, China
| | - Chuan-Jie Qin
- Key Laboratory of Sichuan Province for Fishes Conservation and Utilization in the Upper Reaches of the Yangtze River, Neijiang Normal University, Neijiang, 641100, China; College of Life Science, Neijiang Normal University, Neijiang, 641100, China
| | - Yuan-Chao Zou
- Key Laboratory of Sichuan Province for Fishes Conservation and Utilization in the Upper Reaches of the Yangtze River, Neijiang Normal University, Neijiang, 641100, China; College of Life Science, Neijiang Normal University, Neijiang, 641100, China
| | - Qing-Chao Shi
- Key Laboratory of Sichuan Province for Fishes Conservation and Utilization in the Upper Reaches of the Yangtze River, Neijiang Normal University, Neijiang, 641100, China; College of Life Science, Neijiang Normal University, Neijiang, 641100, China
| | - Peng Hu
- Key Laboratory of Sichuan Province for Fishes Conservation and Utilization in the Upper Reaches of the Yangtze River, Neijiang Normal University, Neijiang, 641100, China; College of Life Science, Neijiang Normal University, Neijiang, 641100, China
| | - Xiao-Qin Xiong
- Key Laboratory of Sichuan Province for Fishes Conservation and Utilization in the Upper Reaches of the Yangtze River, Neijiang Normal University, Neijiang, 641100, China; College of Life Science, Neijiang Normal University, Neijiang, 641100, China
| | - Yang He
- Key Laboratory of Sichuan Province for Fishes Conservation and Utilization in the Upper Reaches of the Yangtze River, Neijiang Normal University, Neijiang, 641100, China; College of Life Science, Neijiang Normal University, Neijiang, 641100, China
| | - Rui Li
- Key Laboratory of Sichuan Province for Fishes Conservation and Utilization in the Upper Reaches of the Yangtze River, Neijiang Normal University, Neijiang, 641100, China; College of Life Science, Neijiang Normal University, Neijiang, 641100, China
| | - Ze-Jin Huang
- Key Laboratory of Sichuan Province for Fishes Conservation and Utilization in the Upper Reaches of the Yangtze River, Neijiang Normal University, Neijiang, 641100, China; College of Life Science, Neijiang Normal University, Neijiang, 641100, China
| | - Dun-Xue Chen
- College of Animal Science, Guizhou University, Guiyang, Guizhou, 550025, China.
| | - Zheng-Yong Wen
- Key Laboratory of Sichuan Province for Fishes Conservation and Utilization in the Upper Reaches of the Yangtze River, Neijiang Normal University, Neijiang, 641100, China; College of Life Science, Neijiang Normal University, Neijiang, 641100, China.
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Xie W, Zhou QJ, Xu YX, Zhang M, Zhong SP, Lu LL, Qiu HT. Transcriptome analysis reveals potential key immune genes of Hong Kong oyster (Crassostrea hongkongensis) against Vibrio parahaemolyticus infection. FISH & SHELLFISH IMMUNOLOGY 2022; 122:316-324. [PMID: 35122949 DOI: 10.1016/j.fsi.2022.02.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 01/23/2022] [Accepted: 02/01/2022] [Indexed: 06/14/2023]
Abstract
Hong Kong oyster (Crassostrea hongkongensis) is one of the main species of economic shellfish cultivated in the coastal areas of southern China. The cultivation of this shellfish may be adversely impacted by Vibrio parahaemolyticus, a harmful pathogenic bacterium for many mariculture species, as it usually exists on the surface of Hong Kong oysters. Although previous studies have discovered that oysters rely on non-specific immune system to fight pathogen invasion, the genes corresponding to the complex immune system against Vibrio is still not fully elucidated. Therefore, we conducted a transcriptome analysis on the gill from Hong Kong oysters at two time points (i.e., 12 h and 24 h after V. parahaemolyticus or PBS challenge) to identify potential immune genes against V. parahaemolyticus infection. A total of 61779 unigenes with the average length of 1221 bp were obtained, and the annotation information of 39917 unigenes were obtained from Nr, SwissProt, KEGG and COG/KOG. After a pairwise comparison between V. parahaemolyticus or PBS challenge at the two time points, three groups of differentially expressed genes induced by V. parahaemolyticus were captured and analyzed. GO and KEGG analyses showed that multiple immune-related genes played an important role in pathogen infection, including HSP70, PCDP3 and TLR4. Furthermore, genes annotation indicated that LITAF, TNFSF10, Duox2 and big defensin family are also involved in immune regulation. Our study provides a reference for further exploration the molecular mechanism that defenses the pathogen infection regarding the identified immune-related genes in Hong Kong oysters.
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Affiliation(s)
- Wei Xie
- Institute of Biomedical Sciences, Shandong Provincial Key Laboratory of Animal Resistance Biology, Collaborative Innovation Center of Cell Biology in Universities of Shandong, College of Life Sciences, Shandong Normal University, Jinan, 250014, China
| | - Qi-Jia Zhou
- Key Laboratory of Environment Change and Resources Use in Beibu Gulf (Nanning Normal University), Ministry of Education, Guangxi Key Laboratory of Earth Surface Processes and Intelligent Simulation (Nanning Normal University), Nanning, 530001, China.
| | - Yi-Xiao Xu
- Key Laboratory of Environment Change and Resources Use in Beibu Gulf (Nanning Normal University), Ministry of Education, Guangxi Key Laboratory of Earth Surface Processes and Intelligent Simulation (Nanning Normal University), Nanning, 530001, China
| | - Man Zhang
- School of Marine Sciences, Guangxi University, Nanning, 530001, China
| | - Sheng-Ping Zhong
- Institute of Marine Drugs, Guangxi University of Chinese Medicine, Nanning, 530200, China.
| | - Li-Li Lu
- Guangxi Zhuang Autonomous Region Institute of Product Quality Inspection, Nanning, 530001, China
| | - Heng-Tong Qiu
- Key Laboratory of Environment Change and Resources Use in Beibu Gulf (Nanning Normal University), Ministry of Education, Guangxi Key Laboratory of Earth Surface Processes and Intelligent Simulation (Nanning Normal University), Nanning, 530001, China
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