文献类型： 外文期刊
作者： Ma Quanying 1 ; Li Zhi 1 ; Liu Xuerong 2 ; Li Jing 2 ; Rashid, Muhammad 1 ; Liu Junlong 1 ; Wang Jinming 1 ; Liu Aihong 1 ;
作者机构： 1.Chinese Acad Agr Sci, Lanzhou Vet Res Inst, State Key Lab Vet Etiol Biol, Key Lab Vet Parasitol Gansu Prov, Lanzhou, Peoples R China
2.China Agr VET BIO Sci & Technol Co Ltd, Lanzhou, Peoples R China
3.Jiangsu Coinnovat Ctr Prevent & Control Important, Yangzhou, Jiangsu, Peoples R China
关键词： Theileria annulata; Schizonts; Optimized medium; Metabolite
期刊名称：ACTA TROPICA （ 影响因子：3.112； 五年影响因子：3.002 ）
ISSN： 0001-706X
年卷期： 2020 年 202 卷
页码：
收录情况： SCI
摘要： Theileria annulata schizont transformed bovine lymphocytes show the feature of permanent proliferation in vitro culture. In this study, we optimized a suitable culture medium for transformed cells to ensure a high yield of quality cells in suspension culture. As the basis for the optimized medium, we combined 75% Gibco (GB) and 25% RPMI-1640 medium. Glucose, lactic acid, ammonia, growth factors and several kinds of amino acids at specific concentrations play important roles in maintaining the maximum growth rate and the quality of cells. The metabolic flow of 17 amino acids, glucose and nutrients was determined with high-performance liquid chromatography (HPLC) and cell viability analysis. The genetic stability of the TaSP and TaSE genes at different passages of the cell line in suspension culture was determined using PCR amplification. The optimal concentrations or tolerated levels of glucose, lactic acid and ammonia were 10-14, 2-5.5 and 3.5-5.5 mmol/L, respectively. Our data demonstrated that the potential utility of the medium optimized here to yield high quality cells compared with basal (normally used) medium. The medium also facilitated the easy maintenance of transformed cells with high yields and excellent quality for in vitro studies. This study also provides insight into the processes of optimization and vaccine development.
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