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Microcapillary clonogenic assays for human marrow hematopoietic progenitor cells
D L Du1, D A Volpe, M J Murphy
1Hipple Cancer Research Center, Dayton, Ohio 45439-2092.
International Journal of Cell Cloning
|September 1, 1989
Summary
A new microcapillary assay cultures human bone marrow cells, enabling the study of myeloid and erythroid progenitors. This method is ideal for assessing drug toxicity in small cell samples.
Area of Science:
- Hematology
- Cell Biology
- Toxicology
Background:
- Standard bone marrow progenitor assays require large cell numbers, limiting their use with limited clinical samples.
- Evaluating drug-induced bone marrow toxicity necessitates sensitive progenitor cell culture methods.
Purpose of the Study:
- To develop and validate a microcapillary clonogenic cell assay for human bone marrow progenitors.
- To assess the utility of this assay for evaluating the myelotoxicity of novel therapeutic agents.
Main Methods:
- Adaptation of a capillary clonogenic cell assay for culturing human bone marrow myeloid and erythroid colonies.
- Quantification of plating efficiencies for granulocyte-macrophage progenitors (CFU-gm), erythroid colony-forming units (CFU-e), and erythroid burst-forming units (BFU-e).
Main Results:
- The microcapillary assay successfully cultured myeloid and erythroid colonies from human bone marrow.
- Established plating efficiencies: CFU-gm (0.143%), CFU-e (0.229%), and BFU-e (0.141%).
- The assay requires significantly smaller culture volumes than traditional Petri dish methods.
Conclusions:
- The microcapillary clonogenic cell assay is a sensitive and efficient method for human bone marrow progenitor culture.
- This technique is advantageous for studies involving limited cell numbers, such as those evaluating the myelotoxicity of anti-cancer and anti-HIV agents.