Related Experiment Video
Updated: May 11, 2026

Heteromulticellular Stromal Cells in Scaffold-free 3D Cultures of Epithelial Cancer Cells to Drive Invasion
Published on: April 4, 2025
[Models of oncogenesis: an endless world?]
1larsen.christian@orange.fr
Abstract:
From the second part of the 20th century, our knowledge of tumor biology widely benefited of tremendous progress in genetics (oncogenes, tumor suppressor genes, chromosomal abnormalities, etc), then in complex epigenetic process that regulates gene expression. Other players have entered the field of oncology and are now considered for their potential therapeutic interest: energetic metabolism, cancer stem cells as sources of tumor recurrence, microenvironment and above all intratumor heterogeneity. A better understanding of these domains of fundamental oncology should not mask the notion that a tumor is a living entity, which obeys the rules of Darwinian evolution.
Insights
Cancer research has advanced significantly due to genetics and epigenetics. New insights into metabolism, stem cells, microenvironment, and tumor heterogeneity highlight tumors as evolving entities.
Area of Science:
- Oncology
- Genetics
- Epigenetics
Context:
- Tumor biology knowledge expanded significantly from the mid-20th century onwards.
- Progress driven by advancements in genetics, including oncogenes, tumor suppressor genes, and chromosomal abnormalities.
- Epigenetic processes regulating gene expression also became a key focus in oncology research.
Purpose:
- To review the evolving understanding of fundamental oncology.
- To integrate genetic, epigenetic, and emerging factors in cancer research.
- To emphasize the evolutionary nature of tumors.
Summary:
- Genetics and epigenetics have revolutionized tumor biology understanding.
- Emerging areas like metabolism, cancer stem cells, microenvironment, and intratumor heterogeneity are crucial.
- Tumors are complex living entities governed by Darwinian evolutionary principles.
Impact:
- Provides a comprehensive overview of key developments in oncology.
- Highlights the interconnectedness of various biological processes in cancer.
- Underscores the importance of considering tumor evolution for therapeutic strategies.
Related Concept Videos
Mouse Models of Cancer Study
The development of transgenic, knockout, and knock-in mice has led to an exponential increase in their use as model organisms in research,...
Mouse Models of Cancer Study
The development of transgenic, knockout, and knock-in mice has led to an exponential increase in their use as model organisms in research,...
Adaptive Mechanisms in Cancer Cells
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...
Adaptive Mechanisms in Cancer Cells
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...
The Tumor Microenvironment
Cancer-Critical Genes I: Proto-oncogenes
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...

