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Related Concept Videos

Cancer02:18

Cancer

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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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Cancers Originate from Somatic Mutations in a Single Cell02:21

Cancers Originate from Somatic Mutations in a Single Cell

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Cancer arises from mutations in the critical genes that allow healthy cells to escape cell cycle regulation and acquire the ability to proliferate indefinitely. Though originating from a single mutation event in one of the originator cells, cancer progresses when the mutant cell lines continue to gain more and more mutations, and finally, become malignant. For example, chronic myelogenous leukemia (CML) develops initially as a non-lethal increase in white blood cells, which progressively...
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Adaptive Mechanisms in Cancer Cells02:53

Adaptive Mechanisms in Cancer Cells

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Cancer cells accumulate genetic changes at an abnormally rapid rate due to the defects in the DNA repair mechanisms. From an evolutionary perspective, such genetic instability is advantageous for cancer development. Mutant cell lines accumulate a series of beneficial mutations that contribute to their progression into cancer.
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...
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The Tumor Microenvironment02:17

The Tumor Microenvironment

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Every normal cell or tissue is embedded in a complex local environment called stroma, consisting of different cell types, a basal membrane, and blood vessels. As normal cells mutate and develop into cancer cells, their local environment also changes to allow cancer progression. The tumor microenvironment (TME) consists of a complex cellular matrix of stromal cells and the developing tumor. The cross-talk between cancer cells and surrounding stromal cells is critical to disrupt normal tissue...
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Cancer-Critical Genes I: Proto-oncogenes01:33

Cancer-Critical Genes I: Proto-oncogenes

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Genes usually encode proteins necessary for the proper functioning of a healthy cell. Mutations can often cause changes to the gene expression pattern, thereby altering the phenotype.
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...
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Mismatch Repair01:20

Mismatch Repair

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Organisms are capable of detecting and fixing nucleotide mismatches that occur during DNA replication. This sophisticated process requires identifying the new strand and replacing the erroneous bases with correct nucleotides. Mismatch repair is coordinated by many proteins in both prokaryotes and eukaryotes.
The Mutator Protein Family Plays a Key Role in DNA Mismatch Repair
The human genome has more than 3 billion base pairs of DNA per cell. Prior to cell division, that vast amount of genetic...
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Related Experiment Video

Updated: May 5, 2026

Monitoring Intraspecies Competition in a Bacterial Cell Population by Cocultivation of Fluorescently Labelled Strains
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Oncogenic competence: balancing mutations, cellular state, and microenvironment.

Lisa Pavinato1, Arianna Baggiolini1

  • 1Institute of Oncology Research (IOR), Bellinzona Institutes of Science (BIOS+), Bellinzona, Switzerland; Faculty of Biomedical Sciences, Università della Svizzera Italiana, Lugano, Switzerland.

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Cancer mutations only cause tumors in specific cellular contexts. Understanding

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Area of Science:

  • Oncology
  • Molecular Biology
  • Cell Biology

Background:

  • Cancer development is driven by genetic mutations.
  • Tumorigenesis is context-dependent, meaning mutations do not always lead to cancer.
  • The cellular environment and intrinsic factors influence whether mutations cause cancer.

Purpose of the Study:

  • To explore the concept of 'oncogenic competence' in cancer development.
  • To understand why specific mutations lead to malignant transformation in certain cellular contexts but not others.
  • To identify key factors contributing to tumor initiation.

Main Methods:

  • This study is a conceptual review and analysis of existing research.
  • It synthesizes information on transcriptional and epigenetic programs.
  • It examines the interplay of genetic mutations, cell lineage, differentiation, and microenvironment.

Main Results:

  • Oncogenic competence is a crucial state that predisposes cells to malignant transformation.
  • This state is shaped by complex interactions between genetic, epigenetic, and environmental factors.
  • Cellular lineage, differentiation status, and microenvironment significantly influence oncogenic competence.

Conclusions:

  • A deeper understanding of oncogenic competence is essential for elucidating tumor initiation mechanisms.
  • Targeted therapies for cancer treatment and prevention can be advanced by understanding these mechanisms.
  • Further research into the factors governing oncogenic competence is warranted.