Removing metabolites for high-density cell growth
2026 – 2027
This project will engineer a cow cell line that does not produce lactate and ammonia, the main growth inhibitory compounds produced by animal cells.
Production platform: Cultivated
Technology sector: Cell line development

Project aims
Mammalian cells have been ubiquitously utilized by the biopharmaceutical industry for decades. This project will utilize learnings from this field to modify a model bovine cultivated meat cell line for improved behavior. This cell line will be adapted to grow in suspension culture, allowing growth in 3D–rather than 2D–culture, unlocking process intensification to decrease cost without necessitating a large facility footprint. The research team will additionally translate a validated genetic engineering workflow from mammalian cell lines used by biopharma to this bovine cell line and subsequently use it to eliminate lactate and ammonia production, the main waste metabolites. The removal of these waste metabolites will increase the maximum amount of cells that can be grown in culture, further decreasing cost. Ultimately, this cell line will be a starting “chassis strain” upon which additional genetic engineering efforts can be applied towards other desirable phenotypes, and process intensification/optimization efforts can begin from an advantaged starting point.
Principal Investigator

Dr. Hooman Hefzi
Associate Professor, Department of Biotechnology and Biomedicine
Technical University of Denmark, Denmark
Dr. Hooman Hefzi is an Associate Professor at the Technical University of Denmark. His group’s focus is engineering mammalian cells for improved cellular behavior for biopharma and for cultivated meat. During his PhD and postdoc, he identified the first genetic engineering strategy to eliminate lactate production in mammalian cells.
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