Evidence map›Paper›PMID 30709038›Full record

ArticleInternational journal of molecular sciences2019

Optimization of Early Steps in Oncolytic Adenovirus ONCOS-401 Production in T-175 and HYPERFlasks.

Lukasz Kuryk, Anne-Sophie W Møller, Antti Vuolanto, Sari Pesonen, Mariangela Garofalo, Vincenzo Cerullo, Magnus Jaderberg

Open access · goldAbstract read
In one paragraph

Article in International journal of molecular sciences, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
2.3field-weighted citation impact, top 12% 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

18 citing papers in PubMed, 21 citations in OpenAlex.

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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

7 authors at 3 institutions in 4 countries.

Lukasz KurykTargovax Oy, Clinical Science, 00180 Helsinki, Finland. lukasz.kuryk@targovax.com.ORCID 0000-0003-1887-6361
Anne-Sophie W MøllerTargovax ASA, Clinical Science, 0283 Oslo, Norway. anne-sophie.moller@targovax.com.
Antti VuolantoTargovax Oy, CMC, 00180 Helsinki, Finland. antti.vuolanto@gmail.com.
Sari PesonenTargovax Oy, R&D, 00180 Helsinki, Finland. sari.pesonen@valotx.com.
Mariangela GarofaloDrug Research Program, ImmunoVirothearpy Lab, Faculty of Pharmacy, University of Helsinki, 00014 Helsinki, Finland. mariangela.garofalo@unimi.it.ORCID 0000-0002-5001-7826
Vincenzo CerulloDrug Research Program, ImmunoVirothearpy Lab, Faculty of Pharmacy, University of Helsinki, 00014 Helsinki, Finland. vincenzo.cerullo@helsinki.fi.
Magnus JaderbergTargovax ASA, Clinical Science, 0283 Oslo, Norway. magnus.jaderberg@targovax.com.
University of Helsinki · FITargovax (Finland) · FITargovax (Norway) · NO

Funding

FP7 People: Marie-Curie Actions FP7-290002Narodowym Centrum Nauki 406438
6 · The paper itself

Abstract

Oncolytic adenoviruses can trigger lysis of tumor cells, induce an antitumor immune response, bypass classical chemotherapeutic resistance strategies of tumors, and provide opportunities for combination strategies. A major challenge is the development of scalable production methods for viral seed stocks and sufficient quantities of clinical grade viruses. Because of promising clinical signals in a compassionate use program (Advanced Therapy Access Program) which supported further development, we chose the oncolytic adenovirus ONCOS-401 as a testbed for a new approach to scale up. We found that the best viral production conditions in both T-175 flasks and HYPERFlasks included A549 cells grown to 220,000 cells/cm² (80% confluency), with ONCOS-401 infection at 30 multiplicity of infection (MOI), and an incubation period of 66 h. The Lysis A harvesting method with benzonase provided the highest viral yield from both T-175 and HYPERFlasks (10,887 ± 100 and 14,559 ± 802 infectious viral particles/cell, respectively). T-175 flasks and HYPERFlasks produced up to 2.1 × 10⁸ ± 0.2 and 1.75 × 10⁸ ± 0.08 infectious particles of ONCOS-401 per cm² of surface area, respectively. Our findings suggest a suitable stepwise process that can be applied to optimizing the initial production of other oncolytic viruses.

Indexed as

A549 CellsAdenoviridaeAnimalsBatch Cell Culture TechniquesHumansOncolytic VirusesViral LoadVirus CultivationVirus ReplicationbenzonasecancerCD40Lharvesting timemanufacturingMOIoncolytic adenovirusoptimizationproductivityvirus productivity

Identifiers

PMID30709038
PMCPMC6387112
OpenAlexW2912229258

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.