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Related Experiment Video

Updated: Jun 11, 2026

Using Human Differentially Expressed Gene Lists to Perform Downstream Pathway Enrichment Analysis and Target Prioritization
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Using Human Differentially Expressed Gene Lists to Perform Downstream Pathway Enrichment Analysis and Target Prioritization

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Theoretical targets for TCDD: a bioinformatics approach.

Jesús Olivero-Verbel1, María Cabarcas-Montalvo, Carlos Ortega-Zúñiga

  • 1Environmental and Computational Chemistry Group, University of Cartagena, Cartagena, Colombia. jesusolivero@yahoo.com

Chemosphere
|July 8, 2010
PubMed
Summary

Dioxins, like TCDD, are toxic via aryl hydrocarbon receptor (AhR) activation. Bioinformatics identified new TCDD targets, suggesting AhR-independent toxicity pathways.

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Area of Science:

  • Environmental Toxicology
  • Computational Biology
  • Biochemistry

Background:

  • Dioxins are highly toxic compounds known to exert effects primarily through aryl hydrocarbon receptor (AhR) activation.
  • 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) is a potent AhR agonist, and its toxicity is extensively studied.
  • While AhR activation explains many TCDD effects, potential alternative mechanisms remain underexplored.

Purpose of the Study:

  • To employ a bioinformatics approach to identify novel protein targets for TCDD.
  • To investigate potential AhR-independent pathways through which TCDD may exert its toxicity.
  • To expand the understanding of TCDD's molecular interactions beyond known AhR-mediated effects.

Main Methods:

  • Utilized the Target Fishing Docking (TarFisDock) Server for virtual screening of TCDD targets.

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Using Human Differentially Expressed Gene Lists to Perform Downstream Pathway Enrichment Analysis and Target Prioritization
03:08

Using Human Differentially Expressed Gene Lists to Perform Downstream Pathway Enrichment Analysis and Target Prioritization

Published on: October 3, 2025

  • Performed molecular docking simulations to identify proteins with high-affinity binding sites for TCDD.
  • Focused on identifying potential interactions independent of the aryl hydrocarbon receptor (AhR).

    • Main Results:

    • Identified several proteins exhibiting high-affinity binding sites for TCDD.
    • Notable identified targets include metallopeptidases 8 and 3, oxidosqualene cyclase, and myeloperoxidase.
    • These proteins are implicated in pathological conditions associated with dioxin exposure, such as endometriosis, diabetes, inflammation, and liver damage.

    Conclusions:

    • The study suggests that TCDD may interact with cellular targets through pathways independent of the aryl hydrocarbon receptor (AhR).
    • The identified proteins represent potential novel targets for TCDD toxicity.
    • These findings open new avenues for research into dioxin-induced pathologies and therapeutic strategies.