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AhR and STAT3: A Dangerous Duo in Chemical Carcinogenesis

Marco Minacori1,2, Sara Fiorini1, Monia Perugini2

  • 1Department of Biochemical Science "A. Rossi Fanelli", Faculty of Pharmacy and Medicine, Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy.

International Journal of Molecular Sciences
|March 27, 2025
PubMed

Insights

Chemicals can cause cancer by altering cell processes. The aryl hydrocarbon receptor (AhR) and Signal transducer and activator of transcription 3 (STAT3) pathways are key players in this chemical carcinogenesis, offering potential therapeutic targets.

Area of Science:

  • Toxicology and Carcinogenesis
  • Molecular Biology and Signal Transduction

Background:

  • Chemical carcinogenesis involves multistage cellular transformation initiated by chemical agents or their metabolites.
  • Signal transducer and activator of transcription 3 (STAT3) is an oncoprotein regulating cell proliferation and survival.
  • The aryl hydrocarbon receptor (AhR) is a transcription factor responding to environmental chemicals, influencing detoxification and immune responses.

Purpose of the Study:

  • To explore the intricate relationship between the STAT3 and AhR signaling pathways in the context of chemical carcinogenesis.
  • To understand how environmental pollutants interact with these pathways to promote cancer development.
  • To identify potential therapeutic strategies targeting the STAT3-AhR network for cancer prevention and treatment.

Main Methods:

  • Review and synthesis of existing literature on STAT3 and AhR signaling in chemical carcinogenesis.
  • Analysis of how various chemical agents, including industrial waste and hydrocarbons, affect STAT3 and AhR activity.
  • Investigation of the cross-talk between STAT3 and AhR pathways in mediating carcinogenic effects.

Main Results:

  • Aberrant activation of STAT3 promotes tumor progression by upregulating oncogenic gene expression.
  • AhR plays a critical role in cancer development and maintenance, interacting with signaling pathways like STAT3.
  • Chemicals can alter the expression or signaling of both AhR and STAT3, contributing to various cancers.

Conclusions:

  • The STAT3-AhR network is a crucial regulator in chemical carcinogenesis.
  • Understanding this network offers new avenues for developing targeted cancer therapies.
  • Personalized medicine approaches focusing on the STAT3-AhR axis could improve patient outcomes and survival rates.
Keywords:
AhRSTAT3chemical carcinogenesis

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