1
|
Boamah GA, Huang Z, Shen Y, Lu Y, Wang Z, Su Y, Xu C, Luo X, Ke C, You W. Transcriptome analysis reveals fluid shear stress (FSS) and atherosclerosis pathway as a candidate molecular mechanism of short-term low salinity stress tolerance in abalone. BMC Genomics 2022; 23:392. [PMID: 35606721 PMCID: PMC9128277 DOI: 10.1186/s12864-022-08611-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 05/09/2022] [Indexed: 12/02/2022] Open
Abstract
Background Transcriptome sequencing is an effective tool to reveal the essential genes and pathways underlying countless biotic and abiotic stress adaptation mechanisms. Although severely challenged by diverse environmental conditions, the Pacific abalone Haliotis discus hannai remains a high-value aquaculture mollusk and a Chinese predominantly cultured abalone species. Salinity is one of such environmental factors whose fluctuation could significantly affect the abalone’s cellular and molecular immune responses and result in high mortality and reduced growth rate during prolonged exposure. Meanwhile, hybrids have shown superiority in tolerating diverse environmental stresses over their purebred counterparts and have gained admiration in the Chinese abalone aquaculture industry. The objective of this study was to investigate the molecular and cellular mechanisms of low salinity adaptation in abalone. Therefore, this study used transcriptome analysis of the gill tissues and flow cytometric analysis of hemolymph of H. discus hannai (DD) and interspecific hybrid H. discus hannai ♀ x H. fulgens ♂ (DF) during low salinity exposure. Also, the survival and growth rate of the species under various salinities were assessed. Results The transcriptome data revealed that the differentially expressed genes (DEGs) were significantly enriched on the fluid shear stress and atherosclerosis (FSS) pathway. Meanwhile, the expression profiles of some essential genes involved in this pathway suggest that abalone significantly up-regulated calmodulin-4 (CaM-4) and heat-shock protein90 (HSP90), and significantly down-regulated tumor necrosis factor (TNF), bone morphogenetic protein-4 (BMP-4), and nuclear factor kappa B (NF-kB). Also, the hybrid DF showed significantly higher and sustained expression of CaM and HSP90, significantly higher phagocytosis, significantly lower hemocyte mortality, and significantly higher survival at low salinity, suggesting a more active molecular and hemocyte-mediated immune response and a more efficient capacity to tolerate low salinity than DD. Conclusions Our study argues that the abalone CaM gene might be necessary to maintain ion equilibrium while HSP90 can offset the adverse changes caused by low salinity, thereby preventing damage to gill epithelial cells (ECs). The data reveal a potential molecular mechanism by which abalone responds to low salinity and confirms that hybridization could be a method for breeding more stress-resilient aquatic species. Supplementary Information The online version contains supplementary material available at 10.1186/s12864-022-08611-8.
Collapse
Affiliation(s)
- Grace Afumwaa Boamah
- State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen, 361102, People's Republic of China.,Fujian Key Laboratory of Genetics and Breeding of Marine Organisms, Xiamen University, Xiamen, 361102, People's Republic of China.,College of Ocean and Earth Sciences, Xiamen University, Xiamen, 361102, People's Republic of China
| | - Zekun Huang
- State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen, 361102, People's Republic of China.,Fujian Key Laboratory of Genetics and Breeding of Marine Organisms, Xiamen University, Xiamen, 361102, People's Republic of China.,College of the Environment and Ecology, Xiamen University, 361102, Xiamen, PR China
| | - Yawei Shen
- State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen, 361102, People's Republic of China.,Fujian Key Laboratory of Genetics and Breeding of Marine Organisms, Xiamen University, Xiamen, 361102, People's Republic of China.,College of Ocean and Earth Sciences, Xiamen University, Xiamen, 361102, People's Republic of China
| | - Yisha Lu
- State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen, 361102, People's Republic of China.,Fujian Key Laboratory of Genetics and Breeding of Marine Organisms, Xiamen University, Xiamen, 361102, People's Republic of China.,College of Ocean and Earth Sciences, Xiamen University, Xiamen, 361102, People's Republic of China
| | - Zhixuan Wang
- State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen, 361102, People's Republic of China.,Fujian Key Laboratory of Genetics and Breeding of Marine Organisms, Xiamen University, Xiamen, 361102, People's Republic of China.,College of Ocean and Earth Sciences, Xiamen University, Xiamen, 361102, People's Republic of China
| | - Ying Su
- State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen, 361102, People's Republic of China.,Fujian Key Laboratory of Genetics and Breeding of Marine Organisms, Xiamen University, Xiamen, 361102, People's Republic of China.,College of Ocean and Earth Sciences, Xiamen University, Xiamen, 361102, People's Republic of China
| | - Changan Xu
- Third Institute of Oceanography, MNR, Xiamen, 361005, China
| | - Xuan Luo
- State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen, 361102, People's Republic of China.,Fujian Key Laboratory of Genetics and Breeding of Marine Organisms, Xiamen University, Xiamen, 361102, People's Republic of China.,College of Ocean and Earth Sciences, Xiamen University, Xiamen, 361102, People's Republic of China
| | - Caihuan Ke
- State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen, 361102, People's Republic of China. .,Fujian Key Laboratory of Genetics and Breeding of Marine Organisms, Xiamen University, Xiamen, 361102, People's Republic of China. .,College of Ocean and Earth Sciences, Xiamen University, Xiamen, 361102, People's Republic of China.
| | - Weiwei You
- State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen, 361102, People's Republic of China. .,Fujian Key Laboratory of Genetics and Breeding of Marine Organisms, Xiamen University, Xiamen, 361102, People's Republic of China. .,College of Ocean and Earth Sciences, Xiamen University, Xiamen, 361102, People's Republic of China.
| |
Collapse
|
2
|
Priyathilaka TT, Bathige SDNK, Lee S, Yang H, Jeong T, Lee S, Lee J. Structural and functional analysis of three Iκb kinases (IKK) in disk abalone (Haliotis discus discus): Investigating their role in the innate immune responses. FISH & SHELLFISH IMMUNOLOGY 2020; 103:111-125. [PMID: 32320761 DOI: 10.1016/j.fsi.2020.04.029] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Revised: 04/11/2020] [Accepted: 04/14/2020] [Indexed: 06/11/2023]
Abstract
The IκB kinases (IKK) are large multiprotein complexes that regulate the activation of the transcription factor NF-κB and are involved in a diverse range of biological processes, including innate immunity, inflammation, and development. To explore the potential roles of invertebrate IKKs on immunity, three IKK encoding genes have been identified from molluscan species disk abalone and designed as AbIKK1, AbIKK2 and AbIKK3 at the transcriptional level. Coding sequences of AbIKK1, AbIKK2 and AbIKK3 encode the peptides of 746, 751 and 713 amino acids with the predicted molecular mass of 86.16, 86.12 and 81.88 kDa respectively. All three AbIKKs were found to share conserved IKK family features including the kinase superfamily domain (KD), ubiquitin-like domain (ULD), and α-helical scaffold/dimerization domain (SDD), similar to their mammalian counterparts. Under normal physiological conditions, AbIKKs were ubiquitously detected in six different tissues, with the highest abundance in the digestive tract and gills. Temporal transcriptional profiles in abalone hemocytes revealed the induction of AbIKK1, AbIKK2, and AbIKK3 expression following exposure to Gram-negative (Vibrio parahemolyticus) and Gram-positive (Listeria monocytogenes) bacteria, viruses (viral hemorrhagic septicemia virus, VHSV), LPS, or poly I:C. The overexpression of AbIKKs in HEK293T or RAW264.7 murine macrophage cells induced NF-κB promoter activation independent of stimulation by TNF-α or LPS. Moreover, iNOS and COX2 expression was induced in AbIKK transfected RAW264.7 murine macrophage cells and the induced state was maintained post-LPS treatment. Furthermore, mRNA levels of three selected cytokine-encoding genes (IL-1β, IL-6, and TNF-α) were found to be elevated in abalone IKK overexpressed RAW264.7 murine macrophage cells, both with and without LPS exposure. Overall, our findings demonstrated that AbIKKs identified in this study were positively involved in eliciting innate immune responses in abalone. In addition, the data revealed the presence of an evolutionarily conserved signaling mechanism for IKK mediated NF-κB activation in mollusks.
Collapse
Affiliation(s)
| | - S D N K Bathige
- Sri Lanka Institute of Nanotechnology (SLINTEC), Nanotechnology and Science Park, Mahenwatta, Pitipana, Homagama, Sri Lanka
| | - Seongdo Lee
- Department of Marine Life Sciences & Fish Vaccine Research Center, Jeju National University, Jeju Self-Governing Province, 63243, Republic of Korea; Marine Science Institute, Jeju National University, Jeju Self-Governing Province, 63333, Republic of Korea
| | - Hyerim Yang
- Department of Marine Life Sciences & Fish Vaccine Research Center, Jeju National University, Jeju Self-Governing Province, 63243, Republic of Korea
| | - Taehyug Jeong
- Department of Marine Life Sciences & Fish Vaccine Research Center, Jeju National University, Jeju Self-Governing Province, 63243, Republic of Korea; Marine Science Institute, Jeju National University, Jeju Self-Governing Province, 63333, Republic of Korea
| | - Sukkyoung Lee
- Department of Marine Life Sciences & Fish Vaccine Research Center, Jeju National University, Jeju Self-Governing Province, 63243, Republic of Korea; Marine Science Institute, Jeju National University, Jeju Self-Governing Province, 63333, Republic of Korea
| | - Jehee Lee
- Department of Marine Life Sciences & Fish Vaccine Research Center, Jeju National University, Jeju Self-Governing Province, 63243, Republic of Korea; Marine Science Institute, Jeju National University, Jeju Self-Governing Province, 63333, Republic of Korea.
| |
Collapse
|
3
|
Zhang X, Shi J, Sun Y, Habib YJ, Yang H, Zhang Z, Wang Y. Integrative transcriptome analysis and discovery of genes involving in immune response of hypoxia/thermal challenges in the small abalone Haliotis diversicolor. FISH & SHELLFISH IMMUNOLOGY 2019; 84:609-626. [PMID: 30366091 DOI: 10.1016/j.fsi.2018.10.044] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Revised: 10/18/2018] [Accepted: 10/20/2018] [Indexed: 06/08/2023]
Abstract
In recent years, the abalone aquaculture industry has been threatened by the deteriorating environmental conditions, such as hypoxia and thermal stress in the hot summers. It is necessary to investigate the molecular mechanism in response to these environmental challenges, and subsequently understand the immune defense system. In this study, the transcriptome profiles by RNA-seq of hemocytes from the small abalone Haliotis diversicolor after exposure to hypoxia, thermal stress, and hypoxia plus thermal stress were established. A total of 103,703,074 clean reads were obtained and 99,774 unigenes were assembled. Of the 99,774 unigenes, 47,154 and 20,455 had homologous sequences in the Nr and Swiss-Prot protein databases, while 16,944 and 10,840 unigenes could be classified by COG or KEGG databases, respectively. RNAseq analysis revealed that the differentially expressed genes (DEGs) after challenges of hypoxia, thermal stress, or hypoxia plus thermal stress were 24,189, 29,165 and 23,665, among which more than 3000 genes involved in at least 230 pathways, including several classical immune-related pathways. The genes and pathways that were involved in immune response to hypoxia/thermal challenges were identified by transcriptome analysis and further validated by quantitative real-time PCR and RNAi technology. The findings in this study can provide information on H. diversicolor innate immunity to improve the abalone aquaculture industry, and the analysis of the potential immune-related genes in innate immunity signaling pathways and the obtained transcriptome data can provide an invaluable genetic resource for the study of the genome and functional genes.
Collapse
Affiliation(s)
- Xin Zhang
- College of Animal Sciences, Fujian Agriculture and Forestry University, Fuzhou, Fujian Province, 350002, China
| | - Jialong Shi
- College of Animal Sciences, Fujian Agriculture and Forestry University, Fuzhou, Fujian Province, 350002, China
| | - Yulong Sun
- College of Animal Sciences, Fujian Agriculture and Forestry University, Fuzhou, Fujian Province, 350002, China
| | - Yusuf Jibril Habib
- College of Animal Sciences, Fujian Agriculture and Forestry University, Fuzhou, Fujian Province, 350002, China
| | - Huiping Yang
- School of Forest Resources and Conservation, Institute of Food and Agricultural Sciences, University of Florida, 7922 NW 71st Street, Gainesville, FL, 32653, USA
| | - Ziping Zhang
- College of Animal Sciences, Fujian Agriculture and Forestry University, Fuzhou, Fujian Province, 350002, China.
| | - Yilei Wang
- Fisheries College, Jimei University, Xiamen, 361021, China.
| |
Collapse
|
4
|
Humphries JE, Deneckere LE. Characterization of a Toll-like receptor (TLR) signaling pathway in Biomphalaria glabrata and its potential regulation by NF-kappaB. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2018; 86:118-129. [PMID: 29746981 DOI: 10.1016/j.dci.2018.05.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Revised: 04/26/2018] [Accepted: 05/03/2018] [Indexed: 05/16/2023]
|
5
|
Xu F, Li J, Zhang Y, Li X, Zhang Y, Xiang Z, Yu Z. CgIκB3, the third novel inhibitor of NF-kappa B (IκB) protein, is involved in the immune defense of the Pacific oyster, Crassostrea gigas. FISH & SHELLFISH IMMUNOLOGY 2015; 46:648-655. [PMID: 26260316 DOI: 10.1016/j.fsi.2015.08.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2015] [Revised: 07/30/2015] [Accepted: 08/04/2015] [Indexed: 06/04/2023]
Abstract
Inhibitor of NF-κB (IκB), the important regulator of NF-κB/Rel signaling pathway, plays the crucial role in immune response of both vertebrates and invertebrates. Here, a novel homologue of IκB was cloned from Crassostrea gigas, and designated as CgIκB3. The complete CgIκB3 cDNA was 1282 bp in length, including a 942 bp open reading frame (ORF), a 51 bp 5' UTR and a 289 bp 3' UTR. The ORF encodes a putative protein of 313 amino acids with a predicted molecular weight of approximately 34.7 kDa. Sequence analysis reveals that CgIκB3 contains a conserved degradation motif but with only five ankyrin repeats. Neither a PEST domain nor a C-terminal casein kinase II phosphorylation site was identified through either alignment or bioinformatic prediction. Phylogenetic analysis suggested that CgIκB3 shares common ancestor with CgIκB1 rather CgIκB2, and theoretically it may originate from one duplication event prior to divergence of CgIκB1 and CgIκB2. Tissue expression analyses demonstrated that CgIκB3 mRNA is the most abundant in gills and heart. The expression following PAMP infection showed that CgIκB3 was significantly up-regulated in a similar pattern when challenged with LPS, HKLM or HKVA, respectively. Moreover, similar to CgIκB1 and CgIκB2, CgIκB3 can also inhibit Rel dependent NF-κB activation in HEK293 cells in a dose-dependent manner. In summary, these findings suggest that CgIκB3 can be as the functional inhibitor of NF-κB/Rel and involved in the host defense of C. gigas. The discovery of the third IκB emphasizes the complexity and importance of the regulation on NF-κB activation.
Collapse
Affiliation(s)
- Fengjiao Xu
- Key Laboratory of Tropical Marine Bio-resources and Ecology and Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; Graduate School of the Chinese Academy of Sciences, Beijing 100049, China; Guangdong Key Laboratory of Laboratory Animals, Guangdong Laboratory Animals Monitoring Institute, Guangzhou, China
| | - Jun Li
- Key Laboratory of Tropical Marine Bio-resources and Ecology and Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center, Guangzhou 510275, China
| | - Yuehuan Zhang
- Key Laboratory of Tropical Marine Bio-resources and Ecology and Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center, Guangzhou 510275, China
| | - Xiaomei Li
- School of Biological Science and Technology, Qiongzhou University, Sanya 572022, China
| | - Yang Zhang
- Key Laboratory of Tropical Marine Bio-resources and Ecology and Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center, Guangzhou 510275, China.
| | - Zhiming Xiang
- Key Laboratory of Tropical Marine Bio-resources and Ecology and Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center, Guangzhou 510275, China
| | - Ziniu Yu
- Key Laboratory of Tropical Marine Bio-resources and Ecology and Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center, Guangzhou 510275, China.
| |
Collapse
|
6
|
Zhang X, Huang Y, Cai X, Zou Z, Wang G, Wang S, Wang Y, Zhang Z. Identification and expression analysis of immune-related genes linked to Rel/NF-κB signaling pathway under stresses and bacterial challenge from the small abalone Haliotis diversicolor. FISH & SHELLFISH IMMUNOLOGY 2014; 41:200-208. [PMID: 25158315 DOI: 10.1016/j.fsi.2014.08.022] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2014] [Revised: 07/24/2014] [Accepted: 08/03/2014] [Indexed: 06/03/2023]
Abstract
Inhibitor of NF-κB (IκB), nuclear factor-κB (NF-κB), and Akirin2 are all important members of Rel/NF-κB signaling pathway, which plays a pivotal role in regulating the innate immune response of vertebrates and invertebrates. In this study, the IκB (SaIκB) and Akirin2 (SaAkirin2) cDNAs of small abalone Haliotis diversicolor were cloned and characterized. The full length cDNA of SaIκB and SaAkirin2 were 1748 bp and 1452 bp respectively, encoding a protein of 401 aa and 187 aa respectively. A conserved degradation motif (DS56GIYS60) and six ankyrin repeats were identified in the SaIκB by SMART analysis. Meanwhile, a typical nuclear localization signal (NLS) was found at the N-terminal region of the SaAkirin2 protein. Also, the mRNA expression level of SaIκB, SaAkirin2, and AbNF-κB were detected by quantitative real-time PCR. The results revealed that all these three genes were ubiquitously expressed in 7 selected tissues. The expression level of SaIκB in gills was higher than that in other tissues (P < 0.05) while the expression level of AbNF-κB was significantly higher in hepatopancreas and haemocytes. The highest expression level of SaAkirin2 was detected in hepatopancreas, followed by mantle. The mRNA expression levels in either gills or haemocytes of SaIκB, SaAkirin2, and AbNF-κB were significantly up-regulated (P < 0.05) post thermal stress, hypoxia exposure, thermal plus hypoxia stress and the injection of Vibrio parahaemolyticus. These results indicated that these three NF-κB signaling pathway-related genes are involved in response to bacterial infection and play essential roles in response to thermal and hypoxia stress.
Collapse
Affiliation(s)
- Xin Zhang
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture, Fisheries College, Jimei University, Xiamen 361021, China
| | - Yitao Huang
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture, Fisheries College, Jimei University, Xiamen 361021, China
| | - Xiuhong Cai
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture, Fisheries College, Jimei University, Xiamen 361021, China
| | - Zhihua Zou
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture, Fisheries College, Jimei University, Xiamen 361021, China
| | - Guodong Wang
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture, Fisheries College, Jimei University, Xiamen 361021, China
| | - Shuhong Wang
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture, Fisheries College, Jimei University, Xiamen 361021, China
| | - Yilei Wang
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture, Fisheries College, Jimei University, Xiamen 361021, China.
| | - Ziping Zhang
- Department of Natural Sciences and Mathematics, State University of New York at Cobleskill, NY 12043, USA
| |
Collapse
|
7
|
Kim BM, Jeong CB, Rhee JS, Lee JS. Transcriptional profiles of Rel/NF-κB, inhibitor of NF-κB (IκB), and lipopolysaccharide-induced TNF-α factor (LITAF) in the lipopolysaccharide (LPS) and two Vibrio sp.-exposed intertidal copepod, Tigriopus japonicus. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2014; 42:229-239. [PMID: 24096153 DOI: 10.1016/j.dci.2013.09.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2013] [Revised: 09/18/2013] [Accepted: 09/19/2013] [Indexed: 06/02/2023]
Abstract
The immune system and the role of immunity-related genes have rarely been studied in copepods, even though copepods have a primitive immune response system and also have a potential in pathogen transport higher trophic levels. In this study, we firstly cloned and characterized three core immune genes such as nuclear factor κB (NF-κB), inhibitor of NF-κB (IκB), and lipopolysaccharide-induced TNF-α factor (LITAF) genes in the intertidal copepod Tigriopus japonicus. Several in silico analyses based on conserved domains, motifs, and phylogenetic relationships were supporting their annotations. To investigate the immune-related role of three genes, we exposed lipopolysaccharide (LPS) and two Vibrio sp. to T. japonicus. After exposure of different concentrations of LPS and two Vibrio sp., transcripts of TJ-IκB and TJ-LITAF genes were significantly elevated during the time course in a dose-dependent manner, while TJ-NF-κB transcripts were not significantly changed during exposure. These findings demonstrated that the copepod T. japonicus has a conserved immunity against infection.
Collapse
Affiliation(s)
- Bo-Mi Kim
- Department of Chemistry, College of Natural Sciences, Hanyang University, Seoul 133-791, South Korea
| | | | | | | |
Collapse
|
8
|
Valenzuela-Muñoz V, Gallardo-Escárate C. Molecular cloning and expression of IRAK-4, IL-17 and I-κB genes in Haliotis rufescens challenged with Vibrio anguillarum. FISH & SHELLFISH IMMUNOLOGY 2014; 36:503-509. [PMID: 24398261 DOI: 10.1016/j.fsi.2013.12.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2013] [Revised: 11/26/2013] [Accepted: 12/18/2013] [Indexed: 06/03/2023]
Abstract
The candidate genes interleukin-1 receptor associated kinase 4 (IRAK-4), Interleukin 17 (IL-17) and Inhibitor of NF-κB (I-κB) were cloned and evaluated in Californian abalone (Haliotis rufescens) hemocytes in response to Vibrio anguillarum. Molecular characterization evidenced that HrI-κB has a full cDNA sequence of 3027 bp with an encoding region of 401 amino acids (aa), HrIRAK-4 comprised 1969 bp that encoded for 516 aa, and Hr-IL17 had a full sequence of 806 bp encoding for 165 aa. qPCR analysis showed the higher constitutive expression level of Hr-IL17 in hemocytes; meanwhile Hr-IκB and Hr-IRAK4 gene expression levels were higher in gills and mantle. The assessment of gene expression in hemocytes after infection with V. anguillarum evidences the immune responses of Hr-IκB, Hr-IRAK4, and Hr-IL17 and their relationships through the NF-κB signaling pathway.
Collapse
Affiliation(s)
- Valentina Valenzuela-Muñoz
- Laboratory of Biotechnology and Aquatic Genomics, Interdisciplinary Center for Aquaculture Research (INCAR), University of Concepción, P.O. Box 160-C, Concepción, Chile
| | - Cristian Gallardo-Escárate
- Laboratory of Biotechnology and Aquatic Genomics, Interdisciplinary Center for Aquaculture Research (INCAR), University of Concepción, P.O. Box 160-C, Concepción, Chile.
| |
Collapse
|