Evidence map›Paper›PMID 34684032›Full record

ArticlePharmaceutics2021

Non-Clinical In Vitro Evaluation of Antibiotic Resistance Gene-Free Plasmids Encoding Human or Murine IL-12 Intended for First-in-Human Clinical Study.

Spela Kos, Masa Bosnjak, Tanja Jesenko, Bostjan Markelc, Urska Kamensek, Katarina Znidar, Urska Matkovic, Andrej Rencelj, Gregor Sersa, Rosana Hudej and 3 more

Open access · goldAbstract read
In one paragraph

Article in Pharmaceutics, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
1.6field-weighted citation impact, top 18% 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

6 citing papers in PubMed, 15 citations in OpenAlex.

  1. Review
  2. Article
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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

13 authors at 4 institutions in 1 country.

Spela KosDepartment of Experimental Oncology, Institute of Oncology Ljubljana, Zaloska cesta 2, SI-1000 Ljubljana, Slovenia.
Masa BosnjakDepartment of Experimental Oncology, Institute of Oncology Ljubljana, Zaloska cesta 2, SI-1000 Ljubljana, Slovenia.ORCID 0000-0001-7288-6582
Tanja JesenkoDepartment of Experimental Oncology, Institute of Oncology Ljubljana, Zaloska cesta 2, SI-1000 Ljubljana, Slovenia.
Bostjan MarkelcDepartment of Experimental Oncology, Institute of Oncology Ljubljana, Zaloska cesta 2, SI-1000 Ljubljana, Slovenia.ORCID 0000-0002-8674-702X
Urska KamensekDepartment of Experimental Oncology, Institute of Oncology Ljubljana, Zaloska cesta 2, SI-1000 Ljubljana, Slovenia.ORCID 0000-0002-0481-4226
Katarina ZnidarDepartment of Experimental Oncology, Institute of Oncology Ljubljana, Zaloska cesta 2, SI-1000 Ljubljana, Slovenia.
Urska MatkovicDepartment of Experimental Oncology, Institute of Oncology Ljubljana, Zaloska cesta 2, SI-1000 Ljubljana, Slovenia.
Andrej RenceljDepartment of Experimental Oncology, Institute of Oncology Ljubljana, Zaloska cesta 2, SI-1000 Ljubljana, Slovenia.ORCID 0000-0001-5775-8689
Gregor SersaDepartment of Experimental Oncology, Institute of Oncology Ljubljana, Zaloska cesta 2, SI-1000 Ljubljana, Slovenia.ORCID 0000-0002-7641-5670
Rosana HudejCenter Odličnosti za Biosenzoriko, Instrumentacijo in Procesno Kontrolo, Mirce 21, SI-5270 Ajdovscina, Slovenia.
Aneja TuljakCenter Odličnosti za Biosenzoriko, Instrumentacijo in Procesno Kontrolo, Mirce 21, SI-5270 Ajdovscina, Slovenia.
Matjaz PeterkaCenter Odličnosti za Biosenzoriko, Instrumentacijo in Procesno Kontrolo, Mirce 21, SI-5270 Ajdovscina, Slovenia.
Maja CemazarDepartment of Experimental Oncology, Institute of Oncology Ljubljana, Zaloska cesta 2, SI-1000 Ljubljana, Slovenia.ORCID 0000-0002-1418-1928
University of Ljubljana · SICentre of Excellence for Biosensors, Instrumentation and Process Control · SIInstitute of Oncology Ljubljana · SIUniversity of Primorska · SI

Funding

European Regional Development Fund, provided by the Ministry of Education, Science and Sport SmartGene.Si projectSlovenian Research Agency J3-2528Slovenian Research Agency P3-0003
6 · The paper itself

Abstract

Interleukin 12 (IL-12) is a key cytokine that mediates antitumor activity of immune cells. To fulfill its clinical potential, the development is focused on localized delivery systems, such as gene electrotransfer, which can provide localized delivery of IL-12 to the tumor microenvironment. Gene electrotransfer of the plasmid encoding human IL-12 is already in clinical trials in USA, demonstrating positive results in the treatment of melanoma patients. To comply with EU regulatory requirements for clinical application, which recommend the use of antibiotic resistance gene-free plasmids, we constructed and developed the production process for the clinical grade quality antibiotic resistance gene-free plasmid encoding human IL-12 (p21-hIL-12-ORT) and its ortholog encoding murine IL-12 (p21-mIL-12-ORT). To demonstrate the suitability of the p21-hIL-12-ORT or p21-mIL-12-ORT plasmid for the first-in-human clinical trial, the biological activity of the expressed transgene, its level of expression and plasmid copy number were determined in vitro in the human squamous cell carcinoma cell line FaDu and the murine colon carcinoma cell line CT26. The results of the non-clinical evaluation in vitro set the basis for further in vivo testing and evaluation of antitumor activity of therapeutic molecules in murine models as well as provide crucial data for further clinical trials of the constructed antibiotic resistance gene-free plasmid in humans.

Indexed as

antibiotic resistance gene-free plasmidgene electrotransferinterleukin 12non-clinical evaluation

Identifiers

PMID34684032
PMCPMC8539770
OpenAlexW3205940131

What OpenQuestion holds

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Registered trials

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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.