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Timecourse RNA Sequencing of three CHO cell lines: non-producing CHOZN®GS-/-, an IgG1 producer, and an EPO-Fc producer

ABSTRACT: We analyzed the transcriptomic response in three distinct CHO cell lines: a non-producing host cell line (CHOZN®GS-/-), an immunoglobulin G1 (IgG1) producer, and an erythropoietin Fc fusion (EPO-Fc) producer. We compared the growth and production characteristics of all three cell lines during fed-batch culture. High throughput RNA sequencing (RNASeq) and quantitative polymerase chain reaction (qPCR) were used to study differential gene expression analysis of the timecourse dataset with the host cell line CHOZN®GS-/- as the reference. The objective of this analysis was to study the common and unique responses of cell lines producing different protein products. This analysis showed enrichment and transient upregulation of mRNAs involved in ER stress, the UPR, and oxidative protein folding and processing in both protein producers. Analysis of temporal differential expression profiles led to the identification of novel engineering targets.

ORGANISM(S): Cricetulus griseus

PROVIDER: GSE217637 | GEO | 2024/06/26

REPOSITORIES: GEO

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Timecourse RNA Sequencing of three CHO cell lines: non-producing CHOZN®GS-/-, an IgG1 producer, and an EPO-Fc producer

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