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Updated: Jan 3, 2026
Comparing Metastatic Clear Cell Renal Cell Carcinoma Model Established in Mouse Kidney and on Chicken Chorioallantoic Membrane
Published on: February 8, 2020
Mouse- and patient-derived CAM xenografts for studying metastatic renal cell carcinoma
Moe Ishihara1, Junhui Hu1, Anthony Wong2
1Department of Molecular and Medical Pharmacology, David Geffen School of Medicine, University of California, Los Angeles, CA, United States.
Abstract:
Renal cell carcinoma is the seventh most common cancer in the United States, and its metastatic form has a very poor prognosis due to a lack of effective treatment and thorough understanding on metastatic mechanism. This chapter will demonstrate a novel concept that intratumoral heterogeneity is essential for metastasis in renal cell carcinoma. We will first introduce the in vitro system and the mouse model that led to the finding of the cooperative mechanism for metastasis. Then, the results from the CAM model illustrate the cooperative interactions that lead to metastasis also occur in this model. We believe that the CAM model, as a unique and sustainable system, can open up new opportunities to study the metastatic disease.
Insights
Intratumoral heterogeneity is crucial for renal cell carcinoma metastasis. A novel cooperative mechanism involving tumor cell interactions was identified, offering new avenues for studying this aggressive cancer. This finding advances understanding of metastatic processes.
Area of Science:
- Oncology
- Cancer Metastasis Research
- Tumor Microenvironment Studies
Background:
- Renal cell carcinoma (RCC) is a prevalent cancer with poor prognosis in its metastatic stage.
- Current understanding of RCC metastasis mechanisms remains limited, hindering effective treatment development.
- Intratumoral heterogeneity's role in cancer progression, particularly metastasis, is an emerging area of research.
Purpose of the Study:
- To investigate the essential role of intratumoral heterogeneity in renal cell carcinoma (RCC) metastasis.
- To elucidate a novel cooperative mechanism driving metastasis in RCC.
- To evaluate the utility of the CAM model for studying RCC metastatic disease.
Main Methods:
- Development and utilization of in vitro and mouse models to identify metastatic mechanisms.
- Application of the CAM (chorioallantoic membrane) model to observe tumor cell interactions in vivo.
- Comparative analysis of metastatic processes across different experimental systems.
Main Results:
- Demonstration of a cooperative mechanism essential for renal cell carcinoma metastasis.
- Validation of cooperative interactions in the CAM model, supporting its relevance.
- Evidence suggesting intratumoral heterogeneity is a key driver of RCC metastasis.
Conclusions:
- Intratumoral heterogeneity is a critical factor in renal cell carcinoma metastasis.
- The identified cooperative mechanism provides new insights into metastatic processes.
- The CAM model serves as a valuable and sustainable platform for future metastasis research.
