Evidence map›Paper›PMID 31970199›Full record

ArticleMolecular therapy. Methods & clinical development2020

Lentiviral Vector Production Titer Is Not Limited in HEK293T by Induced Intracellular Innate Immunity.

Carolina B Ferreira, Rebecca P Sumner, Maria T Rodriguez-Plata, Jane Rasaiyaah, Richard S Milne, Adrian J Thrasher, Waseem Qasim, Greg J Towers

Open access · goldAbstract read
In one paragraph

Article in Molecular therapy. Methods & clinical development, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed
1.3field-weighted citation impact, top 19% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

34 citing papers in PubMed, 41 citations in OpenAlex.

  1. Article
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  4. Article
  5. Review
  6. Article
  7. Review
  8. Article
  9. Article
  10. Enhancing titers of therapeutic lentiviral vectors using PKC agonists.Molecular therapy. Methods & clinical development · 2025
    Article
  11. Transduction of Lentiviral Vectors andInternational journal of molecular sciences · 2025
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Article
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  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 2 institutions in 1 country.

Carolina B FerreiraMolecular and Cellular Immunology Unit, Great Ormond Street Institute of Child Health, University College London, London WC1N 1EH, UK.
Rebecca P SumnerDivision of Infection and Immunity, University College London, London WC1E 6BT, UK.
Maria T Rodriguez-PlataDivision of Infection and Immunity, University College London, London WC1E 6BT, UK.
Jane RasaiyaahMolecular and Cellular Immunology Unit, Great Ormond Street Institute of Child Health, University College London, London WC1N 1EH, UK.
Richard S MilneDivision of Infection and Immunity, University College London, London WC1E 6BT, UK.
Adrian J ThrasherMolecular and Cellular Immunology Unit, Great Ormond Street Institute of Child Health, University College London, London WC1N 1EH, UK.
Waseem QasimMolecular and Cellular Immunology Unit, Great Ormond Street Institute of Child Health, University College London, London WC1N 1EH, UK.
Greg J TowersDivision of Infection and Immunity, University College London, London WC1E 6BT, UK.
University College London · GBGreat Ormond Street Hospital for Children NHS Foundation Trust · GB

Funding

Department of Health RP-2014-05-007Medical Research Council MR/S023380/1Wellcome Trust
6 · The paper itself

Abstract

Most gene therapy lentiviral vector (LV) production platforms employ HEK293T cells expressing the oncogenic SV40 large T-antigen (TAg) that is thought to promote plasmid-mediated gene expression. Studies on other viral oncogenes suggest that TAg may also inhibit the intracellular autonomous innate immune system that triggers defensive antiviral responses upon detection of viral components by cytosolic sensors. Here we show that an innate response can be generated after HIV-1-derived LV transfection in HEK293T cells, particularly by the transgene, yet, remarkably, this had no effect on LV titer. Further, overexpression of DNA sensing pathway components led to expression of inflammatory cytokine and interferon (IFN) stimulated genes but did not result in detectable IFN or CXCL10 and had no impact on LV titer. Exogenous IFN-β also did not affect LV production or transduction efficiency in primary T cells. Additionally, manipulation of TAg did not affect innate antiviral responses, but stable expression of TAg boosted vector production in HEK293 cells. Our findings demonstrate a measure of innate immune competence in HEK293T cells but, crucially, show that activation of inflammatory signaling is uncoupled from cytokine secretion in these cells. This provides new mechanistic insight into the unique suitability of HEK293T cells for LV manufacture.

Indexed as

HEK293Tinnate immunityLentiviral vectorsSV40 large T-antigenvector titer

Identifiers

PMID31970199
PMCPMC6965512
OpenAlexW2997262256

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.