Optogenetic strategies for the control of gene expression in yeasts

• Published in: Biotechnology advances Vol. 54; p. 107839
• Main Authors: Pérez, Ana Laura A., Piva, Luiza C., Fulber, Julia P.C., de Moraes, Lidia M.P., De Marco, Janice L., Vieira, Hugo L.A., Coelho, Cintia M., Reis, Viviane C.B., Torres, Fernando A.G.
• Format: Journal Article
• Language: English
• Published: England Elsevier Inc 01-01-2022; Elsevier Science Ltd
• Subjects: Biotechnology; Gene expression; Heterologous gene expression; Light; Metabolites; Neurosciences; Optogenetics; Switches; Yeast; Heterologous gene expression; Biotechnology; Optogenetics; Yeast; Light
• ISSN: 0734-9750; 1873-1899
• DOI: 10.1016/j.biotechadv.2021.107839

Optogenetics involves the use of light to control cellular functions and has become increasingly popular in various areas of research, especially in the precise control of gene expression. While this technology is already well established in neurobiology and basic research, its use in bioprocess development is still emerging. Some optogenetic switches have been implemented in yeasts for different purposes, taking advantage of a wide repertoire of biological parts and relatively easy genetic manipulation. In this review, we cover the current strategies used for the construction of yeast strains to be used in optogenetically controlled protein or metabolite production, as well as the operational aspects to be considered for the scale-up of this type of process. Finally, we discuss the main applications of optogenetic switches in yeast systems and highlight the main advantages and challenges of bioprocess development considering future directions for this field.
•Light as an inducer has several advantages over chemical induction.•Optogenetic systems are available for different light wavelengths.•Optogenetics is a feasible approach to control gene in expression in yeasts.•Scaling-up of bioprocesses based on optogenetics is a future trend.