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Updated: Jun 27, 2026

Using Human Differentially Expressed Gene Lists to Perform Downstream Pathway Enrichment Analysis and Target Prioritization
Published on: October 3, 2025
[Targets, pathways and molecules]
1Service d'Urologie, Université Paris Descartes, France. arnaud.mejean@nck.aphp.fr
Abstract:
Human malignancies progress using uncontrolled transduction pathways. Molecules (like VEGF for example) bind to membrane receptors that stimulate transduction pathways (like RAS/MEK/ERK) and activate or inhibit the production of cytoplasmic proteins. Thus it is possible to define targets which can be receptors, molecules or proteins and consequently develop active drugs for targeted therapy.
Insights
Cancer progresses via uncontrolled cell signaling pathways. Targeting key molecules like VEGF or proteins in pathways such as RAS/MEK/ERK offers opportunities for developing effective cancer therapies.
Area of Science:
- Molecular Biology
- Oncology
- Cell Signaling
Context:
- Human malignancies are characterized by dysregulated cellular signal transduction.
- Key signaling molecules, such as Vascular Endothelial Growth Factor (VEGF), interact with membrane receptors to initiate intracellular cascades.
- Aberrant activation of pathways like RAS/MEK/ERK contributes to uncontrolled cell proliferation in cancer.
Purpose:
- To elucidate the molecular mechanisms underlying cancer progression.
- To identify critical targets within cellular signal transduction pathways for therapeutic intervention.
- To provide a framework for the development of targeted cancer therapies.
Summary:
- Cellular signal transduction pathways, involving molecules like VEGF binding to receptors, control cytoplasmic protein production.
- Uncontrolled activation of these pathways, exemplified by RAS/MEK/ERK, drives the progression of human malignancies.
- This understanding allows for the definition of specific molecular targets—receptors, molecules, or proteins—for drug development.
Impact:
- Enables the rational design of targeted therapies for various human cancers.
- Facilitates the development of novel therapeutic strategies focused on molecular targets.
- Advances the field of precision medicine by offering specific treatment approaches.
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