Enhanced protein production by microRNA-30 family in CHO cells is mediated by the modulation of the ubiquitin pathway.

Autor: Fischer S; Institute of Applied Biotechnology, University of Applied Sciences Biberach, Hubertus-Liebrecht-Strasse 35, 88400 Biberach, Germany; University of Ulm, Faculty of Medicine, Albert-Einstein-Allee 11, 89081 Ulm, Germany. Electronic address: simon.fischer@hochschule-bc.de., Mathias S; Institute of Applied Biotechnology, University of Applied Sciences Biberach, Hubertus-Liebrecht-Strasse 35, 88400 Biberach, Germany; University of Ulm, Faculty of Natural Sciences, Albert-Einstein-Allee 11, 89081 Ulm, Germany. Electronic address: sven.mathias@hochschule-bc.de., Schaz S; Institute of Applied Biotechnology, University of Applied Sciences Biberach, Hubertus-Liebrecht-Strasse 35, 88400 Biberach, Germany; University of Ulm, Faculty of Natural Sciences, Albert-Einstein-Allee 11, 89081 Ulm, Germany. Electronic address: simonehelena.schaz@hochschule-bc.de., Emmerling VV; University of Ulm, Faculty of Medicine, Albert-Einstein-Allee 11, 89081 Ulm, Germany; Rentschler Biotechnologie GmbH, Erwin-Rentschler-Straße 21, 88471 Laupheim, Germany. Electronic address: verena.emmerling@uni-ulm.de., Buck T; Institute of Applied Biotechnology, University of Applied Sciences Biberach, Hubertus-Liebrecht-Strasse 35, 88400 Biberach, Germany. Electronic address: theresa.buck@gmail.com., Kleemann M; Institute of Applied Biotechnology, University of Applied Sciences Biberach, Hubertus-Liebrecht-Strasse 35, 88400 Biberach, Germany. Electronic address: kleemann@hochschule-bc.de., Hackl M; TAmiRNA GmbH, Muthgasse 18, 1190 Vienna, Austria. Electronic address: matthias.hackl@tamirna.com., Grillari J; Department of Biotechnology, BOKU University of Natural Resources and Life Sciences, Muthgasse 11, 1190 Vienna, Austria; Evercyte GmbH, Muthgasse 18, 1190 Vienna, Austria. Electronic address: johannes.grillari@boku.ac.at., Aschrafi A; Department of Neuroinformatics, Donders Institute for Brain Function, Cognition and Behaviour, Radboud University Nijmegen, Heyendaalseweg 135, 6525 AJ, Nijmegen, The Netherlands. Electronic address: a.aschrafi@donders.ru.nl., Handrick R; Institute of Applied Biotechnology, University of Applied Sciences Biberach, Hubertus-Liebrecht-Strasse 35, 88400 Biberach, Germany. Electronic address: handrick@hochschule-bc.de., Otte K; Institute of Applied Biotechnology, University of Applied Sciences Biberach, Hubertus-Liebrecht-Strasse 35, 88400 Biberach, Germany. Electronic address: otte@hochschule-bc.de.
Jazyk: angličtina
Zdroj: Journal of biotechnology [J Biotechnol] 2015 Oct 20; Vol. 212, pp. 32-43. Date of Electronic Publication: 2015 Aug 06.
DOI: 10.1016/j.jbiotec.2015.08.002
Abstrakt: Functional genomics represent a valuable approach to improve culture performance of Chinese hamster ovary (CHO) cell lines for biopharmaceutical manufacturing. Recent advances in applied microRNA (miRNAs) research suggest that these small non-coding RNAs are critical for the regulation of cell phenotypes in CHO cells. However, the notion that individual miRNAs usually control the expression of hundreds of different genes makes miRNA target identification highly complex. We have recently reported that the entire miR-30 family enhances recombinant protein production in CHO cells. To better understand the pro-productive effects of this miRNA family, we set out to identify their downstream target genes in CHO cells. Computational target prediction combined with a comprehensive functional validation enabled the discovery of a set of twenty putative target genes for all productivity enhancing miR-30 family members. We demonstrate that all miR-30 isoforms contribute to the regulation of the ubiquitin pathway in CHO cells by directly targeting the ubiquitin E3 ligase S-phase kinase-associated protein 2 (Skp2). Finally, we provide several lines of evidence that miR-30-mediated modulation of the ubiquitin pathway may enhance recombinant protein expression in CHO cells. In summary, this study supports the importance of non-coding RNAs, especially of miRNAs, in the context of cell line engineering.
(Copyright © 2015 Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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