1. Mammalian Systems Biotechnology Reveals Global Cellular Adaptations in a Recombinant CHO Cell Line
- Author
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Corrine Wan, Hock Chuan Yeo, Sze Wai Ng, Chung Ping Chow, Faraaz N.K. Yusufi, Ai Ping Hiu, Ju Xin Chin, Yuansheng Yang, Xiaoan Ruan, Ken Wing Kin Sung, Bernard Loo, Miranda Gek Sim Yap, Gavin Teo, Say Kong Ng, Wei Shou Hu, Pramila N. Ariyaratne, Gao Song, Dong-Yup Lee, Muriel Bardor, Ying Swan Ho, Shuwen Chen, Tessa Rui Min Tan, Niranjan Nagarajan, Hsueh Lee Lim, Meiyappan Lakshmanan, DOE Joint Genome Institute [Walnut Creek], Laboratoire de Glycobiologie et Matrice Extracellulaire Végétale (Glyco-MEV), Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Normandie Université (NU), Department of Computational and Systems Biology [Singapore], and Genome Institute of Singapore (GIS)
- Subjects
0106 biological sciences ,0301 basic medicine ,Glycosylation ,[SDV.BIO]Life Sciences [q-bio]/Biotechnology ,Gene Dosage ,[SDV.BC.BC]Life Sciences [q-bio]/Cellular Biology/Subcellular Processes [q-bio.SC] ,01 natural sciences ,law.invention ,Transcriptome ,law ,[SDV.BC.IC]Life Sciences [q-bio]/Cellular Biology/Cell Behavior [q-bio.CB] ,Transgenes ,Glycomics ,ComputingMilieux_MISCELLANEOUS ,[SDV.BDD.GAM]Life Sciences [q-bio]/Development Biology/Gametogenesis ,Mammals ,Genome ,Systems Biology ,Chinese hamster ovary cell ,[SDV.BBM.MN]Life Sciences [q-bio]/Biochemistry, Molecular Biology/Molecular Networks [q-bio.MN] ,Transfection ,Recombinant Proteins ,Recombinant DNA ,Biotechnology ,Histology ,Transgene ,CHO Cells ,Biology ,Pathology and Forensic Medicine ,03 medical and health sciences ,Cricetulus ,Metabolomics ,[SDV.BBM.GTP]Life Sciences [q-bio]/Biochemistry, Molecular Biology/Genomics [q-bio.GN] ,010608 biotechnology ,Animals ,[SDV.BBM.BC]Life Sciences [q-bio]/Biochemistry, Molecular Biology/Biochemistry [q-bio.BM] ,business.industry ,[SDV.BBM.BM]Life Sciences [q-bio]/Biochemistry, Molecular Biology/Molecular biology ,Cell Biology ,[SDV.BV.PEP]Life Sciences [q-bio]/Vegetal Biology/Phytopathology and phytopharmacy ,[SDV.BV.AP]Life Sciences [q-bio]/Vegetal Biology/Plant breeding ,[CHIM.POLY]Chemical Sciences/Polymers ,030104 developmental biology ,Cell culture ,business - Abstract
Effective development of host cells for therapeutic protein production is hampered by the poor characterization of cellular transfection. Here, we employed a multi-omics-based systems biotechnology approach to elucidate the genotypic and phenotypic differences between a wild-type and recombinant antibody-producing Chinese hamster ovary (CHO) cell line. At the genomic level, we observed extensive rearrangements in specific targeted loci linked to transgene integration sites. Transcriptional re-wiring of DNA damage repair and cellular metabolism in the antibody producer, via changes in gene copy numbers, was also detected. Subsequent integration of transcriptomic data with a genome-scale metabolic model showed a substantial increase in energy metabolism in the antibody producer. Metabolomics, lipidomics, and glycomics analyses revealed an elevation in long-chain lipid species, potentially associated with protein transport and secretion requirements, and a surprising stability of N-glycosylation profiles between both cell lines. Overall, the proposed knowledge-based systems biotechnology framework can further accelerate mammalian cell-line engineering in a targeted manner.
- Published
- 2017