Chapter title |
Conditional Knockdown of Endogenous MicroRNAs in CHO Cells Using TET-ON-SanDI Sponge Vectors
|
---|---|
Chapter number | 6 |
Book title |
Heterologous Protein Production in CHO Cells
|
Published in |
Methods in molecular biology, May 2017
|
DOI | 10.1007/978-1-4939-6972-2_6 |
Pubmed ID | |
Book ISBNs |
978-1-4939-6971-5, 978-1-4939-6972-2
|
Authors |
Costello, Alan, Lao, Nga, Clynes, Martin, Barron, Niall, Alan Costello, Nga Lao, Martin Clynes, Niall Barron |
Editors |
Paula Meleady |
Abstract |
MicroRNAs (miRNAs) are small, noncoding RNAs of about 22 nucleotides in length and have proven to be useful targets for genetic modifications for desirable phenotype in the biotech industry. The use of constitutively expressed "miRNA sponge" vectors in which multiple, tandem miRNA binding sites containing transcripts are transcriptionally regulated by a constitutive promoter for down regulating the levels of endogenous microRNAs in Chinese hamster ovary (CHO) cells has shown to be more advantageous than using synthetic antisense oligonucleotides. The application of miRNA sponges in biotechnological processes, however, could be more effective, if expression of miRNA sponges could be tuned. In this chapter, we present a method for the generation of stable CHO cell lines expressing a TET-ON-SanDI-miRNA-sponge that is in theory expressed only in the presence of an inducer. |
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