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PXD041650

PXD041650 is an original dataset announced via ProteomeXchange.

Dataset Summary
TitleMaximizing protein production by keeping cells at optimal secretory stress levels using real-time control approaches
DescriptionOptimizing the production of recombinant proteins is a problem of major industrial and pharmaceutical importance. Secretion of the protein by the host cell considerably simplifies downstream purification processes. However, for many proteins, this is also the limiting production step. Current solutions involve extensive engineering of the chassis cell to facilitate protein trafficking and limit protein degradation triggered by excessive secretion-associated stress. Here, we propose instead a regulation-based strategy in which induction is dynamically adjusted to an optimal strength based on the current stress level of the cells. Using a small collection of hard-to-secrete proteins, a bioreactor-based platform with automated cytometry measurements, and a systematic assay to quantify secreted protein levels, we demonstrate that the secretion sweet spot is indicated by the appearance of a subpopulation of cells that accumulate high amounts of proteins, decrease growth, and face significant stress, that is, experience a secretion burnout. In these cells, adaptations capabilities are overwhelmed by a too strong production. Using these notions, we show for a single-chain antibody variable fragment that secretion levels can be improved by 70% by dynamically keeping the cell population at optimal stress levels using real-time closed-loop control.
HostingRepositoryPRIDE
AnnounceDate2024-10-22
AnnouncementXMLSubmission_2024-10-22_05:51:32.421.xml
DigitalObjectIdentifier
ReviewLevelPeer-reviewed dataset
DatasetOriginOriginal dataset
RepositorySupportUnsupported dataset by repository
PrimarySubmitterMARIETTE MATONDO
SpeciesList scientific name: Saccharomyces cerevisiae; NCBI TaxID: NCBITaxon:4932; scientific name: Saccharomyces cerevisiae (Baker's yeast); NCBI TaxID: 4932;
ModificationListNo PTMs are included in the dataset
InstrumentQ Exactive Plus
Dataset History
RevisionDatetimeStatusChangeLog Entry
02023-04-19 07:08:32ID requested
12023-06-30 06:04:56announced
22024-10-03 04:19:10announced2024-10-03: Updated project metadata.
32024-10-22 05:51:33announced2024-10-22: Updated project metadata.
Publication List
10.1038/s41467-023-38807-9;
Sosa-Carrillo S, Galez H, Napolitano S, Bertaux F, Batt G, Maximizing protein production by keeping cells at optimal secretory stress levels using real-time control approaches. Nat Commun, 14(1):3028(2023) [pubmed]
Keyword List
submitter keyword: protein quantification, secretory
Contact List
Gregory Batt
contact affiliationInstitut Pasteur, Inria, Université Paris Cité, 75015 Paris, France
contact emailgregory.batt@inria.fr
lab head
MARIETTE MATONDO
contact affiliationPasteur
contact emailmariette.matondo@pasteur.fr
dataset submitter
Full Dataset Link List
Dataset FTP location
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PRIDE project URI
Repository Record List
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