Binding of Misonidazole to Hypoxic Cells
Author Information
Author(s): J.A. Raleigh, A.J. Frankol, C.J. Koch, J.L. Born
Primary Institution: Cross Cancer Institute, Edmonton, Alberta, Canada; College of Pharmacy, University of New Mexico, Albuquerque, New Mexico, USA
Hypothesis
Whether a side chain label is retained during Misonidazole binding in single cells and spheroid cultures.
Conclusion
A side-chain label in Misonidazole is bound to hypoxic cells as efficiently as a ring label.
Supporting Evidence
- The binding of ring and side-chain labelled misonidazole was indistinguishable.
- Binding rates were compared under various oxygen concentrations.
- Results showed that both types of labels have similar binding kinetics.
Takeaway
This study shows that a special type of medicine can stick to sick cells in the same way, no matter where you put a sticker on it.
Methodology
The study compared the binding of ring-labelled and side-chain labelled misonidazole to hypoxic cells in monolayer and spheroid cultures.
Limitations
The study does not quantify the degree of inhibition in 4000 ppm O2 directly.
Participant Demographics
V-79-WNRE cells and EMT6/Ed spheroids were used in the experiments.
Statistical Information
Confidence Interval
95%
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