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Measuring within-tumour diversity as a universal biomarker for cancer prognosis

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If you have a question about this talk, please contact Florian Markowetz.

Carcinogenesis is fundamentally an evolutionary process; establishing the prognosis for a cancer therefore requires predicting the future course of tumour evolution. The same is true in premalignant conditions: the risk of developing cancer is determined by how the premalignant lesion is evolving.

The level of diversity within a population largely determines how fast that population will evolve. If there is no diversity natural selection cannot operate, whereas diverse populations are likely to contain well-adapted individuals that can prosper in changing environments. Consequently, quantification of within-tumour diversity is likely to be a proxy-measure of the rate of the underlying evolutionary process that drives carcinogenesis.

In this talk, I will describe how we have measured within-tumour diversity, both genetically and phenotypically, and used these measures to successfully determine prognosis in both established cancers and in premalignant lesions. I will focus particularly on lung cancer and the premalignant condition Barrett’s Oesophagus. Building upon this work, I will present the case for the quantification of within-tumour diversity as a universal biomarker for cancer prognosis.

This talk is part of the Seminars on Quantitative Biology @ CRUK Cambridge Institute series.

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