1
|
Nafeez Ahmed A, Mithra S, Suryakodi S, Taju G, Abdul Wazith MJ, Kanimozhi K, Rajkumar V, Badhusha A, Abdul Majeed S, Sahul Hameed AS. Development and characterization of brain cell line from Trachinotus blochii and its application in virological and gene expression studies. J Fish Dis 2024; 47:e13927. [PMID: 38284337 DOI: 10.1111/jfd.13927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 01/08/2024] [Accepted: 01/14/2024] [Indexed: 01/30/2024]
Abstract
A permanent cell line, SPB (Snubnose pompano brain) was established from Trachinotus blochii by the explant culture method. It has been sub-cultured more than 75 passages and showed optimal growth at 28°C using L-15 medium supplemented with 15% to 20% FBS. The SPB cells were cryopreserved at different passage levels for various applications. SPB cells were composed of fibroblastic and epithelial-like cells. The SPB cells were tested for mycoplasma contamination which was found to be negative. The origin of the SPB cell line from T. blochii was confirmed by amplification of the mitochondrial cytochrome oxidase I (COI) gene. The transfection efficiency of SPB cell line is 15% assessed by expression of green fluorescent protein using pEGFP-N1 plasmid. In addition, two CMV promotor plasmids pFNCPE42-DNA and pcDNAVP28 were transfected to SPB cells and it shows high expression levels of FNCP of fish nodavirus and VP28 protein of white spot syndrome virus by immunostaining. The SPB cells showed susceptibility to SJNNV and the infection was confirmed by RT-PCR, Western blot, ELISA, TCID50 and RT-qPCR. Experimental infection was carried out in T. blochii using SJNNV propagated in SPB cell line and found 100% mortality with clinical signs. The infection was confirmed by RT-PCR. The SPB cell line can be used for propagation of fish viral pathogens and production of the recombinant proteins.
Collapse
Affiliation(s)
- A Nafeez Ahmed
- Aquatic Animal Health Laboratory, C. Abdul Hakeem College (Autonomous), Affiliated to Thiruvalluvar University, Melvisharam, India
| | - S Mithra
- Aquatic Animal Health Laboratory, C. Abdul Hakeem College (Autonomous), Affiliated to Thiruvalluvar University, Melvisharam, India
| | - S Suryakodi
- Aquatic Animal Health Laboratory, C. Abdul Hakeem College (Autonomous), Affiliated to Thiruvalluvar University, Melvisharam, India
| | - G Taju
- Aquatic Animal Health Laboratory, C. Abdul Hakeem College (Autonomous), Affiliated to Thiruvalluvar University, Melvisharam, India
| | - M J Abdul Wazith
- Aquatic Animal Health Laboratory, C. Abdul Hakeem College (Autonomous), Affiliated to Thiruvalluvar University, Melvisharam, India
| | - K Kanimozhi
- Aquatic Animal Health Laboratory, C. Abdul Hakeem College (Autonomous), Affiliated to Thiruvalluvar University, Melvisharam, India
| | - V Rajkumar
- Aquatic Animal Health Laboratory, C. Abdul Hakeem College (Autonomous), Affiliated to Thiruvalluvar University, Melvisharam, India
| | - A Badhusha
- Aquatic Animal Health Laboratory, C. Abdul Hakeem College (Autonomous), Affiliated to Thiruvalluvar University, Melvisharam, India
| | - S Abdul Majeed
- Aquatic Animal Health Laboratory, C. Abdul Hakeem College (Autonomous), Affiliated to Thiruvalluvar University, Melvisharam, India
| | - A S Sahul Hameed
- Aquatic Animal Health Laboratory, C. Abdul Hakeem College (Autonomous), Affiliated to Thiruvalluvar University, Melvisharam, India
| |
Collapse
|
2
|
Deng H, Zheng S, Li Y, Mo X, Zhao J, Yin J, Shi C, Wang Q, Wang Y. Establishment and characterization of a kidney cell line from hybrid snakehead (male Channa argus × female Channa maculata) and its susceptibility to hybrid snakehead rhabdovirus (HSHRV). Comp Biochem Physiol B Biochem Mol Biol 2024; 273:110971. [PMID: 38621626 DOI: 10.1016/j.cbpb.2024.110971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 04/08/2024] [Accepted: 04/08/2024] [Indexed: 04/17/2024]
Abstract
Hybrid snakehead (male Channa argus × female Channa maculata) is an emerging fish breed with increasing production levels. However, infection with hybrid snakehead rhabdovirus (HSHRV) critically affects hybrid snakehead farming. In this study, a fish cell line called CAMK, derived from the kidneys of hybrid snakehead, was established and characterized. CAMK cells exhibited the maximum growth rate at 28 °C in Leibovitz's-15 medium supplemented with 10% fetal bovine serum(FBS). Karyotyping revealed diploid chromosomes in 54% of the cells at the 50th passage (2n = 66), and 16S rRNA sequencing validated that CAMK cells originated fromhybrid snakehead, and the detection of kidney-specific antibodies suggested that it originated from kidney. .The culture was free from mycoplasma contamination, and the green fluorescent protein gene was effectively transfected into CAMK cells, indicating their potential use for in vitro gene expression investigations. Furthermore, qRT-PCR and immunofluorescence analysis revealed that HSHRV could replicate in CAMK cells, indicating that the cells were susceptible to the virus. Transmission electron microscopy revealed that the viral particles had bullet-like morphology. The replication efficiency of HSHRV was 107.33 TCID50/mL. Altogether, we successfully established and characterized a kidney cell line susceptible to the virus. These findings provide a valuable reference for further genetic and virological studies.
Collapse
Affiliation(s)
- Huiling Deng
- Key Laboratory of Fishery Drug Development,Ministry of Agriculture and Rural Affairs, Guangdong Provincial Key Laboratory of Aquatic Animal Immunology and Sustainable Aquaculture, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China 510380; College of Fisheries and Life Sciences, Shanghai Ocean University, Shanghai 201306, China.
| | - Shucheng Zheng
- Key Laboratory of Fishery Drug Development,Ministry of Agriculture and Rural Affairs, Guangdong Provincial Key Laboratory of Aquatic Animal Immunology and Sustainable Aquaculture, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China 510380; Key Laboratory of Marine Pollution, Department of Infectious Diseases and Public Health, Jockey Club School of Animal Medicine and Life Sciences, City University of Hong Kong, Kowloon, Hong Kong, China.
| | - Yingying Li
- Key Laboratory of Fishery Drug Development,Ministry of Agriculture and Rural Affairs, Guangdong Provincial Key Laboratory of Aquatic Animal Immunology and Sustainable Aquaculture, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China 510380.
| | - Xubing Mo
- Key Laboratory of Fishery Drug Development,Ministry of Agriculture and Rural Affairs, Guangdong Provincial Key Laboratory of Aquatic Animal Immunology and Sustainable Aquaculture, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China 510380.
| | - Jian Zhao
- Key Laboratory of Fishery Drug Development,Ministry of Agriculture and Rural Affairs, Guangdong Provincial Key Laboratory of Aquatic Animal Immunology and Sustainable Aquaculture, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China 510380.
| | - Jiyuan Yin
- Key Laboratory of Fishery Drug Development,Ministry of Agriculture and Rural Affairs, Guangdong Provincial Key Laboratory of Aquatic Animal Immunology and Sustainable Aquaculture, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China 510380.
| | - Cunbin Shi
- Key Laboratory of Fishery Drug Development,Ministry of Agriculture and Rural Affairs, Guangdong Provincial Key Laboratory of Aquatic Animal Immunology and Sustainable Aquaculture, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China 510380.
| | - Qing Wang
- Key Laboratory of Fishery Drug Development,Ministry of Agriculture and Rural Affairs, Guangdong Provincial Key Laboratory of Aquatic Animal Immunology and Sustainable Aquaculture, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China 510380.
| | - Yingying Wang
- Key Laboratory of Fishery Drug Development,Ministry of Agriculture and Rural Affairs, Guangdong Provincial Key Laboratory of Aquatic Animal Immunology and Sustainable Aquaculture, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China 510380.
| |
Collapse
|
3
|
Johan CAC, Abdullah MDD, Emilia SN, Zainathan SC. Molecular epidemiology of Megalocytivirus in freshwater angelfish ( Pterophyllum scalare) from Johor, Malaysia. Vet World 2023; 16:2158-2172. [PMID: 38023273 PMCID: PMC10668548 DOI: 10.14202/vetworld.2023.2158-2172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2023] [Accepted: 09/22/2023] [Indexed: 12/01/2023] Open
Abstract
Background and Aim Malaysia has more than 630 culturists who are involved in the ornamental fish industry and culture 250 species, including local and exotic species. Among these viruses, megalocytiviruses have been associated with severe systemic diseases and economic losses in ornamental fish. The intensity of Megalocytivirus infection in Pterophyllum scalare in Malaysia remains unknown. Thus, this study aimed to investigate the occurrence of Megalocytivirus while discovering its associated risk factors and the genotypes of its causative agents in an ornamental fish farm in Malaysia. Materials and Methods Seven broodstock pairs of P. scalare were used in this study to follow the life stages of fish, from egg to market size. Water samples and other samples, such as mucus swabs, gill swabs, P. scalare eggs, fries, juveniles, snails, snail eggs, live feed (Tubifex worms and Moina spp.), sediment samples, and wild fish, were collected periodically for initial environmental sampling from day 0 to day 60. Nested polymerase chain reaction amplifications were performed for megalocytivirus-related sequences. The phylogenetic tree, including the sampled causative agents of megalocytiviruses, was inferred from the major capsid protein genes of all known Iridoviridae species. Pearson's correlation coefficients were calculated to determine the strength of the correlation between the presence of megalocytiviruses in P. scalare samples and the associated risk factors. Results A total of 312 out of 935 pooled and individual samples tested positive for the presence of Megalocytivirus-related sequences, except snail eggs and wild fish (Poecilia reticulata). No clinical symptoms were observed in any fish samples. Megalocytivirus-associated viruses detected in water samples indicate horizontal transmission of the virus. All the nucleotide sequences found in this study had high nucleotide identities of 95%-99 % and were closely related to Megalocytivirus genotype I infectious spleen and kidney necrosis virus. Risk factors associated with Megalocytivirus include water temperature, dissolved oxygen (DO), pH, ammonia, nitrate, nitrite, and the life stages of P. scalare. High Megalocytivirus infection was detected when the water temperature, DO, and pH were high in P. scalare, high water temperature and nitrate in the water samples, and the same rate of Megalocytivirus infection in P. scalare fry and juveniles. Conclusion This is the first study to confirm the existence of different possible routes of megalocytivirus distribution in ornamental fish farms in Malaysia. Nevertheless, the connection between the mode of transmission and the risk factors for this virus needs to be explored further to recognize the evolution and potential new host species.
Collapse
Affiliation(s)
- Che Azarulzaman Che Johan
- Department of Aquaculture, Faculty of Fisheries and Food Science, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia
| | - Muhd Danish Daniel Abdullah
- Department of Aquaculture, Faculty of Fisheries and Food Science, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia
- Institute of Climate Adaptation and Marine Biotechnology, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia
| | - Sharifah Noor Emilia
- Department of Aquaculture, Faculty of Fisheries and Food Science, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia
| | - Sandra Catherine Zainathan
- Department of Aquaculture, Faculty of Fisheries and Food Science, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia
- Institute of Climate Adaptation and Marine Biotechnology, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia
| |
Collapse
|
4
|
Cheng MC, See MS, Wang PC, Kuo YT, Ho YS, Chen SC, Tsai MA. Lymphocystis Disease Virus Infection in Clownfish Amphiprion ocellaris and Amphiprion clarkii in Taiwan. Animals (Basel) 2022; 13:ani13010153. [PMID: 36611762 PMCID: PMC9817495 DOI: 10.3390/ani13010153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Revised: 12/22/2022] [Accepted: 12/26/2022] [Indexed: 01/04/2023] Open
Abstract
Lymphocystic disease affects over 150 species of marine and freshwater fish worldwide. In this study, the lymphocystis pathogen was found in 2 (Amphiprion ocellaris and Amphiprion clarkii) of the 9 species of clownfish. Detection of lymphocystis disease virus (LCDV) was based on histopathological study, electron microscope observation of virus particles and gene sequence analysis from the MCP region. Infected A. ocellaris hosts showed sparse, multifocal, white, stiff, papilloma-like nodules on the body, skin, gills and fins; while, on A. clarkia, nodules were found on the operculum skin. Histopathologic study showed lymphocystic cells with an irregular nucleus, enlarged cytoplasm and intracytoplasmic inclusion bodies surrounded by the cell membrane. The viral particle presents virions 180-230 nm in diameter, hexagonal in shape with an inner dense nucleoid under transmission electron micrographs (TEM). From the ML polygenetic tree, the clownfish LCVD genotype was closely related to the LCDV strain from paradise fish, Macropodus opercularis (KJ408271) (pairwise distance: 92.5%) from China, then followed by the strain from Spain (GU320726 and GU320736) (pairwise distance: 90.8-90.5%), Korea (AB299163, AB212999, AB213004, and AB299164) (pairwise distance: 91.5-80.5%) and lastly Canada (GU939626) (pairwise distance: 83%). This is the first report of lymphocystis disease in A. clarkii in Taiwan.
Collapse
Affiliation(s)
- Ming-Chung Cheng
- Eastern Marine Biology Center, Fisheries Research Institute, Taitung 961, Taiwan
| | - Ming She See
- Institute of Marine Biotechnology, Universiti Malaysia Terengganu, Kuala Nerus 21300, Terengganu, Malaysia
| | - Pei-Chi Wang
- Department of Veterinary Medicine, College of Veterinary Medicine, National Pingtung University of Science and Technology, Pingtung 91201, Taiwan
| | - Yu-Ting Kuo
- Department of Veterinary Medicine, College of Veterinary Medicine, National Pingtung University of Science and Technology, Pingtung 91201, Taiwan
| | - Yuan-Shing Ho
- Eastern Marine Biology Center, Fisheries Research Institute, Taitung 961, Taiwan
| | - Shih-Chu Chen
- Department of Veterinary Medicine, College of Veterinary Medicine, National Pingtung University of Science and Technology, Pingtung 91201, Taiwan
- International Program in Ornamental Fish Technology and Aquatic Animal Health, International College, National Pingtung University of Science and Technology, Pingtung 91201, Taiwan
- Correspondence: (S.-C.C.); (M.-A.T.)
| | - Ming-An Tsai
- Department of Veterinary Medicine, College of Veterinary Medicine, National Pingtung University of Science and Technology, Pingtung 91201, Taiwan
- International Program in Ornamental Fish Technology and Aquatic Animal Health, International College, National Pingtung University of Science and Technology, Pingtung 91201, Taiwan
- Correspondence: (S.-C.C.); (M.-A.T.)
| |
Collapse
|
5
|
Abdul NA, Seepoo AM, Gani T, Sugumar V, Selvam S, Allahbagash B, Abdul Kuthoos AN, Palsamy RK, Kishore M P, M Rajwade J, Azeez SSH. Development and characterization of five novel cell lines from snubnose pompano, Trachinotus blochii (Lacepede, 1801), and their application in gene expression and virological studies. J Fish Dis 2022; 45:121-139. [PMID: 34609743 DOI: 10.1111/jfd.13542] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 09/20/2021] [Accepted: 09/22/2021] [Indexed: 06/13/2023]
Abstract
Five novel permanent cell lines have been established from gill, heart, kidney, eye and fin of snubnose pompano, Trachinotus blochii. They were designated as snubnose pompano gill (SPG), snubnose pompano heart (SPH), snubnose pompano kidney (SPK), snubnose pompano eye (SPE) and snubnose pompano fin (SPF), respectively. All these cell lines were characterized and cryopreserved successfully at different passage levels. Cell lines were passaged every alternate day; SPG, SPH, SPK, SPE and SPF cell lines attained passage levels of 68, 74, 82, 79 and 106, respectively, since the initiation of their development in 2019. The cell lines grew well in Leibovitz's 15 medium containing 15% foetal bovine serum at 28°C. Immunophenotyping of the cell lines revealed the presence of fibronectin and pancytokeratin. No mycoplasma contamination was found. The transfection study revealed the gene expression efficiency of these cell lines by expressing the green fluorescent protein (GFP). The authentication on origin of cell lines from T. blochii was confirmed by amplification of species-specific mitochondrial cytochrome oxidase I gene. The results showed the susceptibility of these cell lines to fish nodavirus (FNV) and tilapia lake virus (TiLV) and resistance to cyprinid herpesvirus 2 (CyHV-2). The FNV infection in the cell lines was confirmed by RT-PCR, Western blot, ELISA and immunocytochemistry, while TiLV infection was confirmed by RT-PCR assay. These results revealed that these cell lines are suitable for virological and foreign gene expression studies.
Collapse
Affiliation(s)
- Nafeez Ahmed Abdul
- Aquatic Animal Health Laboratory, C. Abdul Hakeem College (Affiliated Thiruvalluvar University), Melvisharam, India
| | - Abdul Majeed Seepoo
- Aquatic Animal Health Laboratory, C. Abdul Hakeem College (Affiliated Thiruvalluvar University), Melvisharam, India
| | - Taju Gani
- Aquatic Animal Health Laboratory, C. Abdul Hakeem College (Affiliated Thiruvalluvar University), Melvisharam, India
| | - Vimal Sugumar
- Aquatic Animal Health Laboratory, C. Abdul Hakeem College (Affiliated Thiruvalluvar University), Melvisharam, India
| | - Suryakodi Selvam
- Aquatic Animal Health Laboratory, C. Abdul Hakeem College (Affiliated Thiruvalluvar University), Melvisharam, India
| | - Badhusha Allahbagash
- Aquatic Animal Health Laboratory, C. Abdul Hakeem College (Affiliated Thiruvalluvar University), Melvisharam, India
| | | | - Ramesh Kumar Palsamy
- Mandapam Regional Centre, Central Marine Fisheries Research Institute, Mandapam, India
| | | | | | - Sait Sahul Hameed Azeez
- Aquatic Animal Health Laboratory, C. Abdul Hakeem College (Affiliated Thiruvalluvar University), Melvisharam, India
| |
Collapse
|