简介：
Overview
This protocol outlines the creation of patient-derived orthotopic xenograft models for studying cancer metastasis. By instilling high-grade urothelial cell carcinoma cells or injecting colorectal cancer cells into NOD/SCID mice, researchers can observe tumor growth and metastasis influenced by lymph node stromal cells.
Key Study Components
Area of Science
- Oncology
- Translational Research
- Animal Models
Background
- Models are essential for mimicking cancer metastasis.
- Colorectal cancer and urothelial cell cancer are significant health concerns.
- Orthotopic xenograft models can provide insights into tumor behavior.
- Interaction with lymph nodes is crucial for understanding metastasis.
Purpose of Study
- To develop models that accurately reflect human metastatic diseases.
- To investigate the role of lymph node stromal cells in cancer progression.
- To test new therapies in a clinically relevant setting.
Methods Used
- Intra-vesical instillation of cancer cells in mice.
- Intra-rectal injection of colorectal cancer cells.
- Monitoring tumor growth and metastasis.
- Assessment of tumor implantation rates and metastasis locations.
Main Results
- Higher tumor implantation and metastasis rates were observed.
- Metastatic patterns in mice closely mimic human conditions.
- No procedural-related mortality was reported.
- Models provide a reliable platform for testing therapies.
Conclusions
- Orthotopic xenograft models are effective for studying cancer.
- They allow for the exploration of tumor-lymph node interactions.
- These models can significantly advance cancer research and therapy development.
What types of cancer are modeled in this study?
The study focuses on high-grade urothelial cell carcinoma and colorectal cancer.
What is the significance of using NOD/SCID mice?
NOD/SCID mice are immunocompromised, allowing for human tumor growth without rejection.
How do lymph node stromal cells influence tumor growth?
They enhance tumor implantation and metastasis, mimicking human disease progression.
What are the advantages of orthotopic xenograft models?
They closely resemble human tumors and provide a relevant platform for therapy testing.
Is there any mortality associated with the procedures?
The study reports zero procedural-related mortality in the animal models used.
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