Published 2023

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Publication details

Journal : Frontiers in Nutrition , vol. 10 , p. 1–14–13 , 2023

Publisher : Frontiers Media S.A.

International Standard Numbers :
Printed : 2296-861X
Electronic : 2296-861X

Publication type : Academic article

Contributors : Tzimorotas, Dimitrios; Solberg, Nina; Andreassen, R. Christel; Moutsatsou, Panagiota; Bodiou, Vincent; Pedersen, Mona Elisabeth; Rønning, Sissel

Research areas

Food from new sources


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Introduction: Successful long-term expansion of skeletal muscle satellite cells (MuSCs) on a large scale is fundamental for cultivating animal cells for protein production. Prerequisites for efficient cell expansion include maintaining essential native cell activities such as cell adhesion, migration, proliferation, and differentiation while ensuring consistent reproducibility. Method: This study investigated the growth of bovine MuSC culture using low-volume spinner flasks and a benchtop stirred-tank bioreactor (STR). Results and discussion: Our results showed for the first time the expansion of primary MuSCs for 38 days in a bench-top STR run with low initial seeding density and FBS reduction, supported by increased expression of the satellite cell marker PAX7 and reduced expression of differentiation-inducing genes like MYOG, even without adding p38-MAPK inhibitors. Moreover, the cells retained their ability to proliferate, migrate, and differentiate after enzymatic dissociation from the microcarriers. We also showed reproducible results in a separate biological benchtop STR run.


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