The new frontier in CHO cell line development: From random to targeted transgene integration technologies

N Zeh, M Schmidt, P Schulz, S Fischer - Biotechnology Advances, 2024 - Elsevier
Cell line development represents a crucial step in the development process of a therapeutic
glycoprotein. Chinese hamster ovary (CHO) cells are the most frequently employed …

[HTML][HTML] How to train your cell-Towards controlling phenotypes by harnessing the epigenome of Chinese hamster ovary production cell lines

N Marx, P Eisenhut, M Weinguny, G Klanert… - Biotechnology …, 2022 - Elsevier
Recent advances in omics technologies and the broad availability of big datasets have
revolutionized our understanding of Chinese hamster ovary cells in their role as the most …

Maximizing antibody production in a targeted integration host by optimization of subunit gene dosage and position

J Carver, D Ng, M Zhou, P Ko, D Zhan… - Biotechnology …, 2020 - Wiley Online Library
Historically, therapeutic protein production in Chinese hamster ovary (CHO) cells has been
accomplished by random integration (RI) of expression plasmids into the host cell genome …

Systematic evaluation of site-specific recombinant gene expression for programmable mammalian cell engineering

N Pristovsek, S Nallapareddy, LM Grav… - ACS synthetic …, 2019 - ACS Publications
Many branches of biology depend on stable and predictable recombinant gene expression,
which has been achieved in recent years through targeted integration of the recombinant …

A compendium of stable hotspots in the CHO genome

W Hilliard, KH Lee - Biotechnology and Bioengineering, 2023 - Wiley Online Library
The use of targeted integration for industrial CHO cell line development currently requires
significant upfront effort to identify genomic loci capable of supporting multigram per liter …

Recurring genomic structural variation leads to clonal instability and loss of productivity

AA Bandyopadhyay, SA O'Brien, L Zhao… - Biotechnology and …, 2019 - Wiley Online Library
Chinese hamster ovary cells, commonly used in the production of therapeutic proteins, are
aneuploid. Their chromosomes bear structural abnormality and undergo changes in …

Multiplexed engineering glycosyltransferase genes in CHO cells via targeted integration for producing antibodies with diverse complex-type N-glycans

NTB Nguyen, J Lin, SJ Tay, Mariati, J Yeo… - Scientific Reports, 2021 - nature.com
Therapeutic antibodies are decorated with complex-type N-glycans that significantly affect
their biodistribution and bioactivity. The N-glycan structures on antibodies are incompletely …

[HTML][HTML] Enhanced targeted DNA methylation of the CMV and endogenous promoters with dCas9-DNMT3A3L entails distinct subsequent histone modification …

N Marx, H Dhiman, V Schmieder, CM Freire… - Metabolic …, 2021 - Elsevier
With the emergence of new CRISPR/dCas9 tools that enable site specific modulation of
DNA methylation and histone modifications, more detailed investigations of the contribution …

CHOK1SV GS‐KO SSI expression system: A combination of the Fer1L4 locus and glutamine synthetase selection

M Feary, MA Moffat, GF Casperson… - Biotechnology …, 2021 - Wiley Online Library
There are an ever‐increasing number of biopharmaceutical candidates in clinical trials
fueling an urgent need to streamline the cell line development process. A critical part of the …

[HTML][HTML] Predicting favorable landing pads for targeted integrations in Chinese hamster ovary cell lines by learning stability characteristics from random transgene …

H Dhiman, M Campbell, M Melcher, KD Smith… - Computational and …, 2020 - Elsevier
Abstract Chinese Hamster Ovary (CHO) cell lines are considered to be the preferred
platform for the production of biotherapeutics, but issues related to expression instability …