Evidence map›Paper›PMID 29444368›Full record

ArticleCancer science2018

Establishment of an in vivo simulating co-culture assay platform for genotoxicity of multi-walled carbon nanotubes.

Emi Fukai, Haruna Sato, Masatoshi Watanabe, Dai Nakae, Yukari Totsuka

Open access · goldAbstract read
In one paragraph

Article in Cancer science, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.3field-weighted citation impact, top 22% 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

13 citing papers in PubMed, 23 citations in OpenAlex.

  1. Article
  2. Genotoxicity assessment of mesoporous silica and graphene oxide in GDL1 cells.Genes and environment : the official journal of the Japanese Environmental Mutagen Society · 2025
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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

5 authors at 4 institutions in 1 country.

Emi FukaiDivision of Carcinogenesis and Cancer Prevention, National Cancer Center Research Institute, Tokyo, Japan.
Haruna SatoDivision of Carcinogenesis and Cancer Prevention, National Cancer Center Research Institute, Tokyo, Japan.
Masatoshi WatanabeDivision of Materials Science and Engineering, Graduate School of Engineering, Yokohama National University, Yokohama, Japan.
Dai NakaeDepartment of Nutritional Science and Food Safety, Faculty of Applied Biosciences, Tokyo University of Agriculture, Tokyo, Japan.
Yukari TotsukaDivision of Carcinogenesis and Cancer Prevention, National Cancer Center Research Institute, Tokyo, Japan.ORCID http://orcid.org/0000-0003-3221-1796
Genesis Research Institute · JPMie University · JPTokyo University of Agriculture · JPYokohama National University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Engineered nanomaterials (ENM) are now used in a wide variety of fields, and, thus, their safety should urgently be assessed and secured. It has been suggested that inflammatory responses via the phagocytosis of ENM by macrophages is a key mechanism for their genotoxicity. The present study was conducted to establish a mechanism-based assay to evaluate the genotoxicity of ENM under conditions simulating an in vivo situation, featuring a co-culture system of murine lung resident cells (GDL1) and immune cells (RAW264.7). GDL1 were cultured with or without RAW264.7, exposed to a multi-walled carbon nanotube (MWCNT), and then analyzed for mutagenicity and underlying mechanisms. Mutation frequencies induced in GDL1 by the MWCNT were significantly greater with the co-existence of RAW264.7 than in its absence. Mutation spectra observed in GDL1 co-cultured with RAW264.7 were different from those seen in GDL1 cultured alone, but similar to those observed in the lungs of mice exposed to the MWCNT in vivo. Inflammatory cytokines, such as IL-1β and TNF-α, were produced from RAW264.7 cells treated with the MWCNT. The generation of reactive oxygen species and the formation of 8-oxodeoxyguanosine in GDL1 exposed to the MWCNT were greater in the co-culture conditions than in the single culture conditions. Based on these findings, it is indicated that inflammatory responses are involved in the genotoxicity of MWCNT, and that the presently established, novel in vitro assay featuring a co-culture system of tissue resident cells with immune cells is suitable to evaluate the genotoxicity of ENM.

Indexed as

AnimalsCell LineCoculture TechniquesInflammationInterleukin-1betaMacrophagesMiceMutagenicity TestsMutationNanostructuresNanotubes, CarbonPhagocytosisRAW 264.7 CellsReactive Oxygen SpeciesTumor Necrosis Factor-alphaInterleukin-1betaNanotubes, CarbonReactive Oxygen SpeciesTumor Necrosis Factor-alphaco-cultureGDL1 cellsgenotoxicitymulti-walled carbon nanotubenanomaterials

Identifiers

PMID29444368
PMCPMC5891196
OpenAlexW2790127960

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LicenceCC BY-NC
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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.