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Related Concept Videos

Interactions Between Signaling Pathways01:19

Interactions Between Signaling Pathways

Signaling cascades usually lack linearity. Multiple pathways interact and regulate one another, allowing cells to integrate and respond to diverse environmental stimuli.
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Diversity in Cell Signaling Responses

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Non-Canonical Wnt Signaling Pathways01:41

Non-Canonical Wnt Signaling Pathways

Wnt is a zygotic effect gene that is expressed during very early embryonic development. It regulates various processes in animals starting from early development through the adult stage, such as organogenesis in the embryo and maintenance of neuronal and blood stem cells. Wnt proteins can induce a wide variety of intracellular pathways depending upon the specific abilities of different Wnt ligands to form a complex with shared and cognate receptors in the presence of different co-receptors. The...
Non-Canonical Wnt Signaling Pathways01:41

Non-Canonical Wnt Signaling Pathways

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NF-κB-dependent Signaling Pathway02:26

NF-κB-dependent Signaling Pathway

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Updated: Jun 28, 2026

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

A novel signaling pathway impact analysis.

Adi Laurentiu Tarca1, Sorin Draghici, Purvesh Khatri

  • 1Department of Computer Science, Wayne State University, 431 State Hall, Detroit, MI 48202, USA.

Bioinformatics (Oxford, England)
|November 8, 2008
PubMed
Summary
This summary is machine-generated.

This study introduces Signaling Pathway Impact Analysis (SPIA), a novel method for gene expression analysis. SPIA enhances biological insight by assessing pathway perturbations, improving upon traditional methods for identifying differentially expressed genes.

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Optogenetic Signaling Activation in Zebrafish Embryos
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Optogenetic Signaling Activation in Zebrafish Embryos

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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

Optogenetic Signaling Activation in Zebrafish Embryos
07:18

Optogenetic Signaling Activation in Zebrafish Embryos

Published on: October 27, 2023

Area of Science:

  • Bioinformatics
  • Computational Biology
  • Systems Biology

Background:

  • Gene expression studies often identify numerous differentially expressed genes (DEGs).
  • Biological insight from DEGs is typically gained by analyzing impacted signaling pathways.
  • Existing pathway analysis methods often overlook complex gene interactions within pathways.

Purpose of the Study:

  • To introduce a novel Signaling Pathway Impact Analysis (SPIA) method.
  • To integrate enrichment analysis with pathway perturbation assessment.
  • To improve the biological insight derived from gene expression data.

Main Methods:

  • SPIA combines classical enrichment analysis with a novel perturbation measure.
  • A bootstrap procedure assesses the significance of pathway perturbation.
  • Simulations demonstrate the independence of perturbation and enrichment evidence.

Main Results:

  • SPIA calculates a global pathway significance P-value by combining enrichment and perturbation P-values.
  • The method was validated on four real datasets.
  • SPIA demonstrated superior specificity and sensitivity compared to existing methods.

Conclusions:

  • SPIA offers a more comprehensive approach to pathway analysis.
  • The method effectively captures pathway perturbations beyond simple gene set enrichment.
  • SPIA improves the identification of biologically relevant pathways from gene expression data.