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Published on: March 13, 2018
[Separation of adhering cell colonies with a direct digestion method]
Di-cheng Zhao1, Zhi-gao Long, Duo Zheng
1National Laboratory of Medical Genetics, Central South University, Changsha 410078, China.
Hunan Yi Ke Da Xue Xue Bao = Hunan Yike Daxue Xuebao = Bulletin of Hunan Medical University
|March 28, 2003
Summary
This study presents an efficient method for separating single cell colonies using direct digestion. Optimal results were achieved by seeding cells at a density of 5-10 cells/cm², enabling effective isolation of cell colonies.
Area of Science:
- Cell Biology
- Biotechnology
- Tissue Engineering
Context:
- Efficient separation of single cell colonies is crucial for various cell culture applications.
- Traditional methods can be labor-intensive and may result in colony loss or damage.
Purpose:
- To develop and validate a highly efficient method for the isolation of adhering cell colonies.
- To optimize cell seeding density for maximal colony separation.
Summary:
- A novel method involving direct digestion of cell colonies with trypsin on fibrinous membranes was employed.
- Cells were seeded at gradient densities, with 5-10 cells/cm² identified as optimal for efficient separation.
- Isolated colonies from continuous and normal diploid cell lines reached 10^6 cells after 1 and 1.5 months, respectively.
Impact:
- This technique provides an effective means for obtaining single-cell-derived colonies, essential for clonal expansion and genetic studies.
- The method simplifies colony isolation, potentially reducing experimental time and improving cell viability.
- Facilitates research in areas requiring clonal cell populations, such as stem cell research and drug screening.
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