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Optimizing the strain engineering process for industrial-scale production of bio-based molecules

2023; Springer Science+Business Media; Volume: 50; Issue: 1 Linguagem: Inglês

10.1093/jimb/kuad025

1476-5535

Eric Abbate, Jennifer Andrion, Amanda Reider Apel, M. S. Biggs, Julie E. Chaves, Kristi Cheung, Anthony Ciesla, Alia Clark-ElSayed, Michael R. Clay, Riarose Contridas, Richard J. Fox, Glenn Hein, Dan Held, Andrew A. Horwitz, Stefan Jenkins, K. Kalbarczyk, Nandini Krishnamurthy, Mona Mirsiaghi, Katherine Noon, Mike Rowe, Tyson R. Shepherd, Katia Tarasava, Theodore M. Tarasow, Drew Thacker, Gladys Villa, Krishna Yerramsetty,

Microbial Metabolic Engineering and Bioproduction

Abstract Biomanufacturing could contribute as much as ${\$}$30 trillion to the global economy by 2030. However, the success of the growing bioeconomy depends on our ability to manufacture high-performing strains in a time- and cost-effective manner. The Design–Build–Test–Learn (DBTL) framework has proven to be an effective strain engineering approach. Significant improvements have been made in genome engineering, genotyping, and phenotyping throughput over the last couple of decades that have greatly accelerated the DBTL cycles. However, to achieve a radical reduction in strain development time and cost, we need to look at the strain engineering process through a lens of optimizing the whole cycle, as opposed to simply increasing throughput at each stage. We propose an approach that integrates all 4 stages of the DBTL cycle and takes advantage of the advances in computational design, high-throughput genome engineering, and phenotyping methods, as well as machine learning tools for making predictions about strain scale-up performance. In this perspective, we discuss the challenges of industrial strain engineering, outline the best approaches to overcoming these challenges, and showcase examples of successful strain engineering projects for production of heterologous proteins, amino acids, and small molecules, as well as improving tolerance, fitness, and de-risking the scale-up of industrial strains.