Amino acid degradation pathway inhibitory by-products trigger apoptosis in CHO cells.

CHO cells cell death high cell density culture inhibitory by-products proteomics

Journal

Biotechnology journal
ISSN: 1860-7314
Titre abrégé: Biotechnol J
Pays: Germany
ID NLM: 101265833

Informations de publication

Date de publication:
Jan 2024
Historique:
revised: 25 11 2023
received: 12 07 2023
accepted: 13 12 2023
medline: 20 2 2024
pubmed: 20 2 2024
entrez: 20 2 2024
Statut: ppublish

Résumé

Chinese hamster ovary (CHO) cells are widely used to produce complex biopharmaceuticals. Improving their productivity is necessary to fulfill the growing demand for such products. One way to enhance productivity is by cultivating cells at high densities, but inhibitory by-products, such as metabolite derivatives from amino acid degradation, can hinder achieving high cell densities. This research examines the impact of these inhibitory by-products on high-density cultures. We cultured X1 and X2 CHO cell lines in a small-scale semi-perfusion system and introduced a mix of inhibitory by-products on day 10. The X1 and X2 cell lines were chosen for their varied responses to the by-products; X2 was susceptible, while X1 survived. Proteomics revealed that the X2 cell line presented changes in the proteins linked to apoptosis regulation, cell building block synthesis, cell growth, DNA repair, and energy metabolism. We later used the AB cell line, an apoptosis-resistant cell line, to validate the results. AB behaved similar to X1 under stress. We confirmed the activation of apoptosis in X2 using a caspase assay. This research provides insights into the mechanisms of cell death triggered by inhibitory by-products and can guide the optimization of CHO cell culture for biopharmaceutical manufacturing.

Identifiants

pubmed: 38375561
doi: 10.1002/biot.202300338
doi:

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

e2300338

Subventions

Organisme : Therapeutic Innovation Australia
Organisme : TIA through the National Collaborative Research Infrastructure Strategy
Organisme : Queensland Metabolomics and Proteomics
Organisme : Australian Research Council Training Centre
Organisme : Biopharmaceutical Innovation
ID : IC160100027
Organisme : Advance Queensland Women's Research Assistance Program
ID : WRAP213-2019RD1
Organisme : Advance Queensland Industry Research Fellowship
ID : AQIRF036-2022RD5
Organisme : Australian Research Council Centre of Excellence in Synthetic Biology
ID : CE200100029

Informations de copyright

© 2024 The Authors. Biotechnology Journal published by Wiley-VCH GmbH.

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Auteurs

Verónica S Martínez (VS)

ARC Training Centre for Biopharmaceutical Innovation (CBI), Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, St Lucia, Queensland, Australia.

Karen Rodriguez (K)

ARC Training Centre for Biopharmaceutical Innovation (CBI), Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, St Lucia, Queensland, Australia.

Timothy McCubbin (T)

Queensland Metabolomics and Proteomics (Q-MAP), The University of Queensland, St Lucia, Queensland, Australia.

Junjie Tong (J)

ARC Training Centre for Biopharmaceutical Innovation (CBI), Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, St Lucia, Queensland, Australia.

Stephen Mahler (S)

ARC Training Centre for Biopharmaceutical Innovation (CBI), Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, St Lucia, Queensland, Australia.

Evan Shave (E)

ARC Training Centre for Biopharmaceutical Innovation (CBI), Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, St Lucia, Queensland, Australia.
Patheon, by Thermo Fisher Scientific, Woolloongabba, Queensland, Australia.

Kym Baker (K)

ARC Training Centre for Biopharmaceutical Innovation (CBI), Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, St Lucia, Queensland, Australia.
Patheon, by Thermo Fisher Scientific, Woolloongabba, Queensland, Australia.

Trent P Munro (TP)

ARC Training Centre for Biopharmaceutical Innovation (CBI), Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, St Lucia, Queensland, Australia.
National Biologics Facility, The University of Queensland, St Lucia, Queensland, Australia.

Esteban Marcellin (E)

ARC Training Centre for Biopharmaceutical Innovation (CBI), Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, St Lucia, Queensland, Australia.
Queensland Metabolomics and Proteomics (Q-MAP), The University of Queensland, St Lucia, Queensland, Australia.

Classifications MeSH