Model-based analysis and optimization of bioreactor for hematopoietic stem cell cultivation

Bioprocess and Biosystems Engineering
M T A P KresnowatiX D Chen

Abstract

One of the problems to be solved in attaining the full potentials of hematopoietic stem cell (HSC) applications is the limited availability of the cells. Growing HSCs in a bioreactor offers an alternative solution to this problem. Besides, it also offers the advantages of eliminating labour intensive process as well as the possible contamination involved in the periodic nutrient replenishments in the traditional T-flask stem cell cultivation. In spite of this, the optimization of HSC cultivation in a bioreactor has been barely explored. This manuscript discusses the development of a mathematical model to describe the dynamics in nutrient distribution and cell concentration of an ex vivo HSC cultivation in a microchannel perfusion bioreactor. The model was further used to optimize the cultivation by proposing three alternative feeding strategies in order to prevent the occurrence of nutrient limitation in the bioreactor. The evaluation of these strategies, the periodic step change increase in the inlet oxygen concentration, the periodic step change increase in the media inflow, and the feedback control of media inflow, shows that these strategies can successfully improve the cell yield of the bioreactor. In general, the develope...Continue Reading

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Citations

Nov 20, 2012·Biotechnology Journal·Jan HansmannHeike Walles
Jul 24, 2020·Bioengineering·Kathleen Van BeylenJean-Marie Aerts
Feb 9, 2021·Biotechnology Letters·Leila Shafiei KaleybarHojjatollah Nozad Charoudeh

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