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Deoxyribonucleoside triphosphate pools in human bone marrow and leukaemic cells
Antibiotics and Chemotherapy
|January 1, 1980
Summary
Deoxyribonucleoside triphosphate (dNTP) levels are elevated in leukemia patients. Drug-resistant leukemia cells show altered dNTP profiles, highlighting potential therapeutic targets.
Area of Science:
- Biochemistry
- Hematology
- Oncology
Background:
- Deoxyribonucleoside triphosphates (dNTPs) are essential for DNA synthesis and repair.
- Alterations in dNTP pools are implicated in various hematological malignancies.
Purpose of the Study:
- To quantify dNTP concentrations in bone marrow cells from normal subjects and leukemia patients.
- To investigate dNTP pool dynamics in drug-resistant leukemia and stimulated lymphocytes.
Main Methods:
- Measurement of dNTP concentrations in nucleated bone marrow cells.
- Analysis of dNTP levels in cultured human leukaemic cells and phytohaemagglutinin-stimulated lymphocytes.
Main Results:
- dNTP concentrations were approximately 3-fold higher in leukemia and myeloproliferative disease patients.
- Drug-resistant acute leukemia cells generally had lower dNTP levels, with a relative increase in deoxycytidine triphosphate.
- dNTP levels fluctuated with the cell cycle and proliferative rate.
Conclusions:
- Measuring dNTPs in human bone marrow and leukemia cells is feasible.
- Challenges exist in bone marrow sample preparation for accurate dNTP measurement.
- Further in vivo studies are needed to refine cell preparation methods for dNTP pool analysis.