简介：
Overview
This protocol demonstrates the application of dynamic contrast enhanced magnetic resonance imaging (DCE-MRI) for orthotopic pancreatic tumor xenografts in mice. DCE-MRI is a non-invasive imaging technique that allows for the analysis of microvasculature in tumors, providing insights into vascular responses following novel therapies.
Key Study Components
Area of Science
- Neuroscience
- Oncology
- Imaging Techniques
Background
- Dynamic contrast enhanced magnetic resonance imaging (DCE-MRI) is used to visualize tumor microvasculature.
- Orthotopic models provide a more accurate representation of the tumor microenvironment compared to subcutaneous models.
- This technique allows for the assessment of neovascularization and tumor cell invasion.
- The study is conducted using human pancreatic cancer cells implanted in mice.
Purpose of Study
- To visualize the microvascular structure of pancreatic tumor xenografts.
- To assess the vascular response of tumors to novel therapies.
- To improve understanding of tumor biology in a more physiologically relevant model.
Methods Used
- Removal of the pancreas from the abdomen.
- Infusion of human pancreatic cancer cells into the tail of the pancreas.
- Placement of a plastic board and surface coil for imaging.
- Utilization of DCE-MRI to visualize the tumor microvasculature.
Main Results
- DCE-MRI successfully visualizes the microvascular structure of the tumor.
- Orthotopic models show enhanced neovascularization compared to subcutaneous models.
- The technique provides insights into tumor blood supply and invasion.
- Demonstrates the effectiveness of DCE-MRI in assessing tumor response to therapies.
Conclusions
- DCE-MRI is a valuable tool for studying pancreatic tumors in vivo.
- Orthotopic models are essential for understanding the tumor microenvironment.
- This method can aid in evaluating the efficacy of new cancer therapies.
What is DCE-MRI?
DCE-MRI is a non-invasive imaging technique used to assess the microvasculature of tumors.
Why use orthotopic models?
Orthotopic models provide a more accurate representation of the tumor microenvironment compared to subcutaneous models.
What are the advantages of this imaging technique?
DCE-MRI allows for real-time visualization of tumor vascular responses to therapies.
How are the pancreatic tumor xenografts created?
The pancreas is removed, human pancreatic cancer cells are infused, and then the pancreas is returned to the abdomen.
What insights can be gained from this study?
The study provides insights into tumor blood supply, neovascularization, and tumor cell invasion.
Who conducted the study?
The study was conducted by Sharon Samuel and Marie Warren from the research lab.
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