Development of a Highly Permissive Mandarin Fish (Siniperca chuatsi) Kidney Cell Line for Mandarin Fish Ranavirus Using a Single-Cell Cloning Method
文献类型： 外文期刊
作者： Zhang, Hetong 1 ; Dong, Junjian 1 ; Yan, Yunyun 1 ; Liu, Shanshan 4 ; Ye, Xing 1 ; Gao, Fengying 1 ; Sun, Chengfei 1 ;
作者机构： 1.Chinese Acad Fishery Sci, Key Lab Trop & Subtrop Fisheries Resource Applicat, Pearl River Fisheries Inst, Minist Agr & Rural Affairs, Guangzhou 510310, Peoples R China
2.Chinese Acad Fishery Sci, Pearl River Fisheries Inst, Key Lab Aquat Anim Immune Technol Guangdong Prov, Guangzhou 510310, Peoples R China
3.Agr Univ Hebei, Coll Oceanog, Qinhuangdao 066000, Peoples R China
4.Sun Yat Sen Univ, Sch Ecol, Guangzhou 510275, Peoples R China
5.Shanghai Ocean Univ, Coll Fisheries & Life Sci, Shanghai 201308, Peoples R China
关键词： mandarin fish ranavirus (MRV); permissive cell line; single-cell clone
期刊名称：CELLS （ 影响因子：6.0； 五年影响因子：6.7 ）
ISSN：
年卷期： 2024 年 13 卷 1 期
页码：
收录情况： SCI
摘要： Mandarin fish ranavirus (MRV) infection poses a substantial challenge to the mandarin fish culture industry as no effective preventive or therapeutic measures currently exist. The creation of a highly permissive cell line from a natural host is crucial for developing a vaccine for MRV and understanding its pathogenic mechanisms. In this research, the mandarin fish (Siniperca chuatsi) kidney cell line (SCK) was isolated from mandarin fish kidneys. Subsequently, SCK-a to SCK-g monoclonal cell lines were derived from the SCK cell population, distinguished by morphological variations. Notably, MRV infection induced an advanced cytopathic effect (CPE) in almost all cells of the SCK-f clone. Further tests showed that MRV achieved a peak viral titer of 10(10.7) 50% tissue culture infectious dose (TCID50)/mL and consistently exceeded 10(10) TCID50/mL across nine passages in SCK-f cells. Electron microscopy verified the MRV virion integrity within SCK-f. In vivo experiments revealed that MRV infections led to cumulative mortality rates of 86.9% in mandarin fish and 88.9% in largemouth bass (Micropterus salmoides). Such results suggest that SCK-f is highly permissive to MRV. This study underscores the importance of cellular diversity in developing viral permissive cell lines. The SCK monoclonal cell line pool may offer potential for generating highly permissive cell lines for other mandarin fish viruses.
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