Animal Bioscience

Asian Australasian Association of Animal Production Societies (아세아태평양축산학회)
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Reduced aggregation of the leghorn male hepatoma cell line in suspension by supplementing dextran sulfate in the media

  • Jung Soo Lim (Division of Biological Science and Technology, Yonsei University) ;
  • Ji Soo Kim (Division of Biological Science and Technology, Yonsei University) ;
  • Yugyeong Cheon (Division of Biological Science and Technology, Yonsei University) ;
  • Tae Sub Park (Graduate School of International Agricultural Technology and Institute of Green-Bio Science and Technology, Seoul National University) ;
  • Jong Kwang Hong (Division of Biological Science and Technology, Yonsei University)
  • Received : 2024.05.30
  • Accepted : 2024.08.22
  • Published : 2025.02.01
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Abstract

Objective: The study aimed to improve the efficiency of leghorn male hepatoma (LMH) cells for animal virus vaccine production by transitioning from adherent to suspension culture and evaluating the effects of dextran sulfate (DS) on preventing cell aggregation. The goal was to enhance cell growth, viability, and glucose metabolism and to develop efficient suspension-adapted LMH cells for large-scale vaccine production. Methods: LMH cells previously cultured in an adherent state were transferred to 125 mL Erlenmeyer flasks to conduct suspension culture. Cell culture performance, including cell density, viability, and glucose metabolism, during the cultures was measured, along with an assessment of cell aggregation. Additionally, mRNA expression levels of genes associated with cell adhesion and apoptosis were monitored. Results: DS supplementation in suspension culture enhanced cell viability and growth, with higher cell densities and viabilities compared to control media. Additionally, DS supplementation reduced glucose consumption and waste production, indicating improved metabolic efficiency. DS also delayed cell aggregation, possibly by downregulating integrin expression and promoting anti-apoptotic gene expression. However, even after 2 months, cell aggregation persisted in both control and DS-supplemented cultures, suggesting further optimization is needed for LMH cell adaptation to suspension culture. Conclusion: DS supplementation in LMH cell suspension cultures led to notable improvements in cell growth, viability, and glucose metabolism, while also decreasing the cell aggregation.

Keywords

References

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