简介：
Overview
This study outlines a detailed protocol for culturing pig intestinal 3D organoids from cryopreserved epithelial crypts, facilitating investigations into nutrient transport, barrier function, and host-microbe interactions in the pig intestinal epithelium.
Key Study Components
Research Area
- Veterinary and biomedical research
- Intestinal epithelium studies
Background
- Preservation of pig intestinal epithelial crypts for stem cell studies
- Application to multiple intestinal segments (jejunum, duodenum, ileum, colon)
Methods Used
- Thawing and culturing of epithelial crypts
- Pig intestinal organoids as model systems
- Centrifugation, enzymatic dissociation, and cell counting
Main Results
- Organoids were successfully grown in both 3D and 2D cultures
- Cells formed a confluent monolayer with high electrical resistance
- Observations confirmed effective growth and structural integrity of organoids
Conclusions
- The protocol provides essential tools for expanding knowledge of intestinal biology
- This research has significant implications for understanding gut health and disease in pigs
What are organoids?
Organoids are 3D structures derived from stem cells that mimic the architecture and functionality of organs.
How are the epithelial crypts preserved?
Epithelial crypts are cryopreserved in liquid nitrogen for long-term storage before being thawed for use in cultures.
What is the significance of studying pig intestinal epithelium?
Pig intestinal epithelium serves as a relevant model for studying human disease and nutrition due to physiological similarities.
What methods are used to assess organoid growth?
Methods include visual inspection of structures and measuring transepithelial electrical resistance (TEER) to confirm confluence.
What can be learned from this research?
The research provides insights into nutrient absorption and barrier functions within the intestinal epithelium, applicable to veterinary health.
How frequently should the culture medium be changed?
The culture medium should be changed every two to three days for optimal growth conditions.
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