数字农科院2.0

Optimization Of A Suspension Culture For A Theileria Annulata-Infected Bovine Cell Line

文献类型： 外文期刊

作者： Ma, QY; Li, Z; Liu, XR; Li, J; Rashid, M; Liu, JL; Wang, JM; Liu, AH; Li, YQ; Yin, H; Guan, GQ; Luo, JX

作者机构：

关键词： Theileria annulata; Schizonts; Optimized medium; Metabolite

期刊名称： ACTA TROPICA

ISSN： 0001-706X

年卷期： 2020 年 202 卷

页码：

收录情况： JCR（2021版）

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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