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Long-term 1800MHz electromagnetic radiation did not induce Balb/c-3T3 cells malignant transformation

Electromagnetic biology and medicine · 2020 · Mixed · Low evidence

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MixedLow evidencePaper 1604

Balb/c-3T3 cells exposed to 1800 MHz EMR for 80 days showed increased proliferation, a higher percentage of cells in S phase, and stronger migration ability versus sham. No clones were observed in plate clone or soft agar clone formation assays, and the autho…

Study snapshot

PublicationElectromagnetic biology and medicine · 2020
Study typein_vitro
Reported directionMixed
Evidence ratingLow

Abstract

Long-term 1800MHz electromagnetic radiation did not induce Balb/c-3T3 cells malignant transformation Zhen Ding, Xiaoyong Xiang, Jintao Li, Shuicai Wu. Long-term 1800MHz electromagnetic radiation did not induce Balb/c-3T3 cells malignant transformation. Electromagn Biol Med. 2020 Nov 19;1-10. doi: 10.1080/15368378.2020.1846194. Abstract There is an increased public concern about potential health hazards of exposure to electromagnetic radiation (EMR). To declare the carcinogenic effects of 1800 MHz EMR. In this study, Balb/c-3T3 cells were exposed to 1800 MHz EMR for 80 days. The cells were harvested for cell proliferation detection, cell cycle assay, plate clone, and soft agar formation assay, transwell assay, and mRNA microarray detection. 1800 MHz EMR promoted Balb/c-3T3 proliferation. No clones were observed in both plate clone and soft agar clone formation assay. The percentage of cells in S phase in Balb/c-3T3 cells of 80d Expo was obviously higher than the percetage in 80d Sham cells. 80d Expo Balb/c-3T3 cells had stronger migration ability than Sham cells. The mRNA microarray results indicated that cell cycle, cell division, and DNA replication were the main biological processes the significant genes enriched, with higher expression of RPs and Mcms. 1800 MHz EMR promoted Balb/c-3T3 cells proliferation and migration. The mRNA microarray results indicated that cell cycle, cell division, and DNA replication were the main biological processes the significant genes enriched. pubmed.ncbi.nlm.nih.gov

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AI evidence extraction

Structured fields below were generated from the paper’s abstract and metadata to make the evidence easier to inspect. Automated extraction may be incomplete or incorrect; verify important details against the original paper.

Study typein_vitro
Effect directionmixed
PopulationBalb/c-3T3 cells
Sample sizeNot supplied
ExposureRF · 1800 MHz · 80 days
Evidence strengthLowConfidence: 74% · Peer reviewed: yes

Main findings

Balb/c-3T3 cells exposed to 1800 MHz EMR for 80 days showed increased proliferation, a higher percentage of cells in S phase, and stronger migration ability versus sham. No clones were observed in plate clone or soft agar clone formation assays, and the authors report no malignant transformation under these conditions.

Outcomes measured

  • malignant transformation (plate clone formation, soft agar formation)
  • cell proliferation
  • cell cycle phase distribution (S phase)
  • cell migration (transwell assay)
  • mRNA expression (microarray); enriched biological processes (cell cycle, cell division, DNA replication)

Limitations

  • SAR/dosimetry not reported in abstract
  • Sample size and replication not reported in abstract
  • Exposure setup/source characteristics not described in abstract
  • In vitro model; relevance to human health outcomes not established in abstract
View raw extracted JSON
{
  "study_type": "in_vitro",
  "exposure": {
    "band": "RF",
    "source": null,
    "frequency_mhz": 1800,
    "sar_wkg": null,
    "duration": "80 days"
  },
  "population": "Balb/c-3T3 cells",
  "sample_size": null,
  "outcomes": [
    "malignant transformation (plate clone formation, soft agar formation)",
    "cell proliferation",
    "cell cycle phase distribution (S phase)",
    "cell migration (transwell assay)",
    "mRNA expression (microarray); enriched biological processes (cell cycle, cell division, DNA replication)"
  ],
  "main_findings": "Balb/c-3T3 cells exposed to 1800 MHz EMR for 80 days showed increased proliferation, a higher percentage of cells in S phase, and stronger migration ability versus sham. No clones were observed in plate clone or soft agar clone formation assays, and the authors report no malignant transformation under these conditions.",
  "effect_direction": "mixed",
  "limitations": [
    "SAR/dosimetry not reported in abstract",
    "Sample size and replication not reported in abstract",
    "Exposure setup/source characteristics not described in abstract",
    "In vitro model; relevance to human health outcomes not established in abstract"
  ],
  "evidence_strength": "low",
  "confidence": 0.74,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "1800 MHz",
    "electromagnetic radiation",
    "RF",
    "Balb/c-3T3",
    "in vitro",
    "malignant transformation",
    "soft agar assay",
    "cell proliferation",
    "cell cycle",
    "migration",
    "mRNA microarray"
  ],
  "suggested_hubs": []
}
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AI-extracted fields are generated from the abstract and metadata and may be incomplete or incorrect. This material is for informational purposes and is not medical advice.

Identifiers and source

DOI: 10.1080/15368378.2020.1846194
PubMed: 33211539

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