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Comparing Metastatic Clear Cell Renal Cell Carcinoma Model Established in Mouse Kidney and on Chicken Chorioallantoic Membrane
Published on: February 8, 2020
Evolution of Renal Cell Carcinoma
Zayd Tippu1, Lewis Au2, Samra Turajlic2
1Renal and Skin Units, The Royal Marsden Hospital NHS Foundation Trust, London, UK.
Abstract:
A diverse range of clinical phenotypes are observed in clear-cell renal cell carcinoma (ccRCC) with resultant therapeutic implications. Molecular characterisation underpinning the diversity observed has been qualified, where the near ubiquitous loss of the short arm of chromosome 3 precedes distinct evolutionary trajectories involving different sequences and combinations of genetic events. Primary tumours are characterised by varying degrees of intratumoural heterogeneity and chromosomal complexity associated with distinct metastatic phenotypes. An evolutionary understanding reconciles the diverse clinical phenotypes observed in metastatic ccRCC and has the potential to impact patient management. PATIENT SUMMARY: Re-tracing the evolutionary paths taken by clear-cell kidney cancer through analyses at the gene level gives an insight into genetic changes that are correlated to metastatic potential. This may provide a framework to guide therapeutic interventions, especially in identifying candidates for surgical intervention.
Insights
Understanding clear-cell renal cell carcinoma (ccRCC) evolution reveals genetic changes linked to metastasis. This knowledge can guide treatment decisions and identify patients for surgery.
Area of Science:
- Oncology
- Genetics
- Cancer Biology
Background:
- Clear-cell renal cell carcinoma (ccRCC) presents diverse clinical phenotypes and therapeutic challenges.
- Tumor evolution is driven by genetic events, notably the loss of chromosome 3p, leading to varied disease trajectories.
- Intratumoral heterogeneity and chromosomal complexity in primary tumors correlate with distinct metastatic patterns.
Purpose of the Study:
- To elucidate the molecular underpinnings of ccRCC diversity.
- To correlate genetic events and tumor evolution with metastatic potential.
- To explore how an evolutionary perspective can inform patient management and therapeutic strategies.
Main Methods:
- Molecular characterization of primary ccRCC tumors.
- Analysis of genetic events and chromosomal alterations.
- Comparative analysis of tumor evolution in relation to clinical phenotypes and metastatic status.
Main Results:
- The loss of chromosome 3p is a near-ubiquitous early event in ccRCC development.
- Distinct evolutionary trajectories, involving different genetic event combinations, lead to diverse ccRCC phenotypes.
- Tumor heterogeneity and chromosomal complexity are associated with specific metastatic phenotypes.
Conclusions:
- An evolutionary framework reconciles the diverse clinical presentations of metastatic ccRCC.
- Understanding ccRCC evolutionary paths offers insights into genetic drivers of metastasis.
- This approach has the potential to guide therapeutic interventions, including patient selection for surgery.
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