Identifying and engineering promoters for high level and sustainable therapeutic recombinant protein production in cultured mammalian cells

Promoters are essential on plasmid vectors to initiate transcription of the transgenes when generating therapeutic recombinant proteins expressing mammalian cell lines. High and sustained levels of gene expression are desired during therapeutic protein production while gene expression is useful for...

Full description

Bibliographic Details
Main Authors: Ho, Steven C. L., Yang, Yuansheng
Other Authors: School of Chemical and Biomedical Engineering
Format: Journal Article
Language:English
Published: 2016
Subjects:
Online Access:https://hdl.handle.net/10356/81399
http://hdl.handle.net/10220/40783
Description
Summary:Promoters are essential on plasmid vectors to initiate transcription of the transgenes when generating therapeutic recombinant proteins expressing mammalian cell lines. High and sustained levels of gene expression are desired during therapeutic protein production while gene expression is useful for cell engineering. As many finely controlled promoters exhibit cell and product specificity, new promoters need to be identified, optimized and carefully evaluated before use. Suitable promoters can be identified using techniques ranging from simple molecular biology methods to modern high-throughput omics screenings. Promoter engineering is often required after identification to either obtain high and sustained expression or to provide a wider range of gene expression. This review discusses some of the available methods to identify and engineer promoters for therapeutic recombinant protein expression in mammalian cells.