简介：
Overview
This protocol describes the creation of organoids from patient-derived xenografts (PDX) for in vitro screening, establishing matched in vivo/in vitro models. The process involves harvesting and processing PDX tumors to generate organoid lines that can be characterized against the original PDX.
Key Study Components
Area of Science
- Neuroscience
- Biology
- Oncology
Background
- Patient-derived xenografts (PDX) are valuable for cancer research.
- Organoids provide a relevant in vitro model for studying tumors.
- Matching in vivo and in vitro models enhances experimental accuracy.
- This method allows for the preservation and characterization of organoids.
Purpose of Study
- To establish a library of paired PDX and organoid lines.
- To facilitate in vitro screening of cancer therapies.
- To improve the understanding of tumor biology through matched models.
Methods Used
- Harvesting PDX tumors and processing them into small pieces.
- Using enzymatic digestion followed by mechanical pipetting.
- Filtering the homogenate and washing the filtrate.
- Centrifuging the processed tissue for organoid culture.
Main Results
- Successful generation of organoids from PDX tumors.
- Establishment of matched in vivo/in vitro models.
- Characterization of organoids against original PDX samples.
- Potential for in vitro screening of therapeutic agents.
Conclusions
- The method provides a reliable approach to create organoids from PDX.
- Matched models enhance the relevance of in vitro studies.
- This protocol can be adapted for various cancer types.
What are patient-derived xenografts?
Patient-derived xenografts (PDX) are tumors taken from patients and implanted into immunocompromised mice for research purposes.
How are organoids created from PDX?
Organoids are created by harvesting PDX tumors, processing the tissue, and culturing it using specific methods.
What is the significance of matched in vivo/in vitro models?
Matched models allow researchers to compare the behavior of tumors in vivo and in vitro, improving the relevance of experimental results.
Can this method be used for different types of cancer?
Yes, the protocol can be adapted for various cancer types to create organoids from PDX.
What are the advantages of using organoids for screening?
Organoids provide a more accurate representation of patient tumors, allowing for better screening of potential therapies.
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