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Updated: Jul 15, 2025
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Yeast As a Chassis for Developing Functional Assays to Study Human P53
Published on: August 4, 2019
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Convergent TP53 loss and evolvability in cancer
Marcela Braga Mansur1, Mel Greaves2
1Centre for Evolution and Cancer, The Institute of Cancer Research, ICR, London, UK.
BMC Ecology and Evolution
|September 24, 2023
Summary
Cancer evolution involves natural selection, leading to diverse mutations. The TP53 gene frequently shows functional loss variants, indicating convergent evolution in cancer development and drug resistance.
Area of Science:
- Oncology
- Evolutionary Biology
- Genomics
Background:
- Cancer cell populations exhibit significant mutational diversity within and between patients.
- Understanding cancer evolution is crucial for developing effective therapies.
- The role of specific genes, like TP53, in cancer evolution requires further investigation.
Purpose of the Study:
- To explore the evolutionary trajectories of cancer cell populations.
- To investigate whether cancer evolution exhibits repetitive or predictable patterns.
- To examine the significance of TP53 gene variants in cancer evolution and drug resistance.
Main Methods:
- Genomic scrutiny of patient samples.
- Analysis of mutational profiles.
- Discussion of microenvironmental selective pressures and TP53 gene variants.
Main Results:
- Cancer evolution is a stepwise process driven by natural selection within a tissue ecosystem.
- Extraordinary diversity in mutational profiles is observed in cancer patients.
- Functional loss variants in the TP53 gene are the most common genetic alteration in cancer, suggesting convergent evolution.
Conclusions:
- Cancer evolution displays convergent patterns, particularly concerning TP53 gene mutations.
- Microenvironmental selective pressures significantly impact cancer cell fitness and evolvability.
- TP53 alterations are linked to increased probability of subsequent drug resistance.
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