Nucleoside Salvage and Resistance to Antimetabolite Anticancer Agents
Author Information
Author(s): M. Fox, J.M. Boyle, A.R. Kinsella
Primary Institution: CRC Department of Biochemical Genetics, Paterson Institute for Cancer Research
Hypothesis
Some forms of unresponsiveness to chemotherapy by inhibitors of de novo synthesis may result from the circumvention of inhibition via salvage uptake.
Conclusion
Nucleoside salvage pathways are significant mechanisms in resistance to various antitumor agents.
Supporting Evidence
- Nucleoside salvage pathways are often overlooked in the context of drug resistance.
- Resistance to cytotoxic drugs is more common in tumor cells than in normal cells.
- Different tumors exhibit varying levels of specific enzyme activities that may influence drug resistance.
Takeaway
Cancer cells can sometimes avoid the effects of drugs by using a backup system to get the building blocks they need, which helps them survive even when the drugs are trying to stop them.
Methodology
The review discusses various mechanisms of drug resistance in cancer cells, focusing on nucleoside salvage pathways and their role in circumventing drug action.
Limitations
The review does not provide new experimental data but summarizes existing literature.
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