In vitro exposure to electromagnetic fields: changes in tumour cell properties.

{
  "study_type": "in_vitro",
  "exposure": {
    "band": "ELF",
    "source": "laboratory-generated electromagnetic fields",
    "frequency_mhz": null,
    "sar_wkg": null,
    "duration": "24 h continuous exposure"
  },
  "population": "Two human colon cancer cell lines (Colo 205 and Colo 320 DM)",
  "sample_size": null,
  "outcomes": [
    "Soft agar colony formation (cloning)",
    "Monoclonal antibody binding / expression of tumor-associated antigens"
  ],
  "main_findings": "After 24 h continuous exposure, both colon cancer cell lines showed significantly increased colony formation in soft agar and increased expression of tumor-associated antigens following combined electric+magnetic field exposure (E+M+) and magnetic-field-only exposure (M+) compared with unexposed controls.",
  "effect_direction": "harm",
  "limitations": [
    "Sample size not reported in abstract",
    "In vitro cancer cell lines; findings may not generalize to in vivo or human health outcomes",
    "Only one frequency (60 Hz) and specific field intensities tested",
    "Short exposure duration (24 h)"
  ],
  "evidence_strength": "low",
  "confidence": 0.78,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "ELF",
    "60 Hz",
    "electromagnetic fields",
    "magnetic field",
    "electric field",
    "colon cancer cell lines",
    "Colo 205",
    "Colo 320 DM",
    "soft agar cloning",
    "tumor-associated antigens",
    "monoclonal antibody binding"
  ],
  "suggested_hubs": [
    {
      "slug": "elf-emf",
      "weight": 0.9,
      "reason": "Study examines 60 Hz (ELF) electric and magnetic field exposures."
    },
    {
      "slug": "in-vitro-studies",
      "weight": 0.85,
      "reason": "In vitro experiments on human tumor cell lines assessing biological changes."
    }
  ]
}