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Related Concept Videos

Protein Networks02:26

Protein Networks

An organism can have thousands of different proteins, and these proteins must cooperate to ensure the health of an organism. Proteins bind to other proteins and form complexes to carry out their functions. Many proteins interact with multiple other proteins creating a complex network of protein interactions.
These interactions can be represented through maps depicting protein-protein interaction networks, represented as nodes and edges. Nodes are circles that are representative of a protein,...
Targeted Cancer Therapies02:57

Targeted Cancer Therapies

The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against specific...
Targeted Cancer Therapies02:57

Targeted Cancer Therapies

The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against specific...
Canonical Wnt Signaling Pathway02:54

Canonical Wnt Signaling Pathway

The gene encoding the main signaling molecules of the Wnt signaling pathways (the Wnt proteins) was discovered almost four decades ago by Nüsslein-Volhard and Wieschaus. They identified and originally named the gene "wingless" (wg) after a phenotype discovered during their landmark genetic screen in Drosophila for body pattern defects. At around the same time, another researcher named Harold Varmus found that a murine tumor virus activates the mammalian wg homolog, Int-1, which results in tumor...
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...
Cancer02:18

Cancer

Cancers arise due to mutations in genes involved in the regulation of cell division, which leads to unrestricted cell proliferation. Modern science and medicine have made great strides in the understanding and treatment of cancer, including eradicating cancer in some patients. However, there is still no cure for cancer. This is largely due to the fact that cancer is a large group of many diseases.

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Related Experiment Video

Updated: May 9, 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

Boolean network model for cancer pathways: predicting carcinogenesis and targeted therapy outcomes.

Herman F Fumiã1, Marcelo L Martins

  • 1Departamento de Física, Universidade Federal de Viçosa, Viçosa, Minas Gerais, Brazil.

Plos One
|August 8, 2013
PubMed
Summary

This study models cancer signaling pathways to identify key mutations driving cancer progression. Combining targeted therapies is essential for eradicating cancer cells, as single treatments show limited effectiveness.

Related Experiment Videos

Last Updated: May 9, 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

Area of Science:

  • Systems biology
  • Computational oncology
  • Cancer signaling networks

Background:

  • Cancer arises from complex dysregulation of cellular signaling pathways.
  • Understanding the dynamics of these pathways is crucial for identifying therapeutic targets.
  • Existing models often lack the integration of diverse signaling networks and their emergent properties.

Purpose of the Study:

  • To construct a Boolean dynamical system of cancer signaling pathways.
  • To identify driver mutations and their role in phenotypic transitions.
  • To evaluate the efficacy of targeted cancer therapies.

Main Methods:

  • Development of a Boolean dynamical system based on protein-protein interaction networks.
  • Simulation of the system to identify attractors (stationary states) and their stability.
  • Analysis of network attractors to define distinct cell phenotypes and driver mutations.
  • In silico evaluation of monotherapies and combination therapies.

Main Results:

  • Identified cell-specific attractors representing distinct phenotypes.
  • Determined driver mutations that are direct regulators of central pathway components.
  • Confirmed that driver mutations are not necessarily topologically central.
  • Demonstrated distinct mutational routes to malignancy.
  • Showed that combination targeted therapies are necessary for cancer eradication.

Conclusions:

  • Boolean network modeling provides insights into cancer evolution and therapeutic strategies.
  • Driver mutations play a critical role in phenotypic transitions and malignancy.
  • Combination targeted therapies are superior to monotherapies for achieving cancer eradication.