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Process Optimization using High Throughput Automated Micro-Bioreactors in Chinese Hamster Ovary Cell Cultivation
Published on: May 18, 2020
Upstream design enabling downstream simplification in biomanufacturing: strategies and perspectives
Qianqian Song1, Guohui Zhu1, Qihai Liu1
1Department of Pharmaceutical and Biological Engineering, School of Chemical Engineering, Sichuan University, Chengdu 610065, China.
Current Opinion in Biotechnology
|May 20, 2026
Summary
Upstream engineering strategies simplify industrial biomanufacturing's downstream processing (DSP). Microbial engineering innovations reduce separation costs and enhance bio-production sustainability.
Area of Science:
- Biotechnology
- Bioprocess Engineering
- Synthetic Biology
Background:
- Downstream processing (DSP) is a major challenge in industrial biomanufacturing, impacting cost and complexity.
- Traditional optimization focuses on reaction units, but upstream design offers a new approach.
Purpose of the Study:
- To review microbial engineering strategies that enable downstream simplification.
- To provide a framework for developing efficient microbial cell factories.
Main Methods:
- Systematic evaluation of five upstream engineering strategies: secretion pathway, product modification, cell surface, cell morphology, and programmed cell lysis.
- Analysis of how these strategies decouple product synthesis from separation.
Main Results:
- Upstream interventions streamline DSP by promoting secretion, facilitating release, or enabling targeted purification.
- These methods reduce reliance on complex separation matrices and lower costs.
Conclusions:
- Upstream design significantly simplifies downstream processing in biomanufacturing.
- Harmonizing upstream and downstream processes leads to cost-competitive and sustainable bio-production.
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