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Updated: Jun 21, 2026
An Orthotopic Resectional Mouse Model of Pancreatic Cancer
Published on: September 24, 2020
Protocol for region-specific tumor dissection and protein extraction from a pancreatic neuroendocrine tumor mouse
Vinod Vijayakurup1, Michael Feely2, Maria Zajac-Kaye1
1Department of Anatomy and Cell Biology, University of Florida, Gainesville, FL 32610, USA.
Abstract:
Isolation of high-quality protein from transgenic mouse tumors is essential for elucidating the mechanisms underlying tumor development. We describe steps for harvesting pancreatic neuroendocrine tumors from human thymidylate synthase (hTS)/Men1-/- mice, where hTS/TYMS is overexpressed in a Men1-/- background. We then detail procedures for protein extraction from hTS/Men1-/- and control Men1-/- tumors for immunoblotting. The protocol preserves protein integrity while reducing non-specific background commonly seen in pancreatic tissues. It also minimizes non-tumor tissue, enhancing the specificity of the protein extract. For complete details on the use and execution of this protocol, please refer to Vijayakurup et al.1.
Insights
This study presents a protocol for isolating high-quality protein from mouse pancreatic neuroendocrine tumors. The method ensures protein integrity and enhances extract specificity for better tumor mechanism research.
Area of Science:
- Oncology
- Molecular Biology
- Biochemistry
Background:
- High-quality protein isolation is crucial for understanding tumor development mechanisms.
- Transgenic mouse models, such as human thymidylate synthase (hTS)/Men1 knockout (Men1-/-) mice, are vital for studying specific genetic contributions to cancer.
- Pancreatic neuroendocrine tumors (PNETs) present unique challenges for protein extraction due to tissue complexity.
Purpose of the Study:
- To describe a detailed protocol for harvesting and extracting protein from hTS/Men1-/- and control Men1-/- mouse pancreatic tumors.
- To optimize protein extraction for immunoblotting applications.
- To enhance the specificity and integrity of protein extracts from challenging pancreatic tissues.
Main Methods:
- Harvesting of pancreatic neuroendocrine tumors from hTS/Men1-/- and control Men1-/- mice.
- Detailed protein extraction procedures specifically adapted for pancreatic tumor tissues.
- Methods to minimize non-tumor tissue contamination and reduce non-specific background.
Main Results:
- The described protocol successfully yields high-quality protein extracts from mouse pancreatic neuroendocrine tumors.
- Protein integrity is preserved during the extraction process.
- Non-specific background commonly observed in pancreatic tissue extracts is significantly reduced, enhancing specificity.
Conclusions:
- This protocol provides a reliable method for obtaining pure protein extracts from hTS/Men1-/- mouse tumors.
- The optimized method facilitates accurate immunoblotting and downstream analyses for studying tumor development.
- The protocol is essential for researchers investigating the role of hTS/TYMS overexpression in a Men1-/- background.
