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Microplastics exacerbate tissue damage and promote carcinogenesis following liver infection in mice

Haipeng Huang1, Jiaqi Hou2, Chengze Yu2

  • 1Institute of Molecular Medicine, College of Future Technology, Peking University, Beijing 100871, China.

Ecotoxicology and Environmental Safety
|October 23, 2024
PubMed

Insights

Microplastics (MPs) exposure may promote cancer by exacerbating liver injury and activating cancer-related signals. Big data analysis links MPs pollution to hepatocellular carcinoma, revealing a toxic amplification effect.

Area of Science:

  • Environmental Health
  • Toxicology
  • Oncology

Background:

  • Cancer is a major global health threat.
  • Microplastic (MP) exposure poses health risks, but its carcinogenicity is unclear.
  • Investigating MPs' role in cancer development is crucial.

Purpose of the Study:

  • To investigate the potential carcinogenicity of microplastics (MPs).
  • To explore the interaction between MPs, infectious agents, and liver carcinogenesis.
  • To identify molecular mechanisms underlying MP-induced cancer promotion.

Main Methods:

  • Assessing MP effects on hepatic injury in infectious models.
  • Analyzing liver transcriptomic data to identify activated pathways.
  • Investigating the role of transcription factor SALL2.
  • Utilizing big data analysis to correlate MP pollution with human cancer.

Main Results:

  • MPs significantly worsened hepatic injury during infection.
  • MPs activated cancer-related signals (p53, p21) and intensified the carcinogenesis pathway.
  • The transcription factor SALL2 was identified as a potential oncogenic promoter regulated by MPs.
  • A correlation was found between MP pollution and human hepatocellular carcinoma.

Conclusions:

  • MPs can amplify the toxicity of pathogens, exacerbating liver injury.
  • MPs show potential carcinogenic effects, particularly in the context of infection.
  • MPs may promote hepatocellular carcinoma through mechanisms involving SALL2.
  • Further research into MP toxicity and its link to human cancers is warranted.
Keywords:
CancerHumanInfectionSALL2Toxic amplification effect

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