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Quinone methides and their prodrugs: a subtle equilibrium between cancer promotion, prevention, and cure
F Dufrasne1, Michel Gelbcke, Jean Neve
1Laboratoire de Chimie Pharmaceutique Organique, Université Libre de Bruxelles, Brussels, Belgium.
Abstract:
The importance of reactive drug metabolites in the pathogenesis of drug-induced toxicity has been investigated since the early 1950s, mainly to reveal the link between toxic metabolites and chemical carcinogenesis. This review mainly focuses on biologically active compounds, which generate reactive quinone methide (QM) intermediates either directly or after bioactivation. Several examples of anticancer drugs acting through the generation of QM electrophiles are given. The use of those drugs for chemotherapeutic purposes is also discussed. The key feature of those QM-generating drugs is their reactivity toward specific nucleophilic biological targets. Modulation of their reactivity represents a challenge for medicinal chemists because, depending on the reactivity of these QM intermediates, their interaction with critical proteins can alter the function of these key proteins and induce a wide variety of responses with functional consequences. Among the possible consequences, antiproliferative effects could be exploited for chemotherapeutic purposes. Information on how such QM-generating drugs can affect individual target proteins and their functional consequences are required to help the medicinal chemist in the design of more specific QM-generating molecules for chemotherapeutic use.
Insights
Reactive drug metabolites, particularly quinone methides (QM), are crucial in drug toxicity and chemical carcinogenesis. Understanding their interaction with biological targets can guide the development of targeted anticancer therapies.
Area of Science:
- Medicinal Chemistry
- Pharmacology
- Toxicology
Background:
- Reactive drug metabolites have been studied for their role in drug-induced toxicity and chemical carcinogenesis since the 1950s.
- Quinone methides (QM) are reactive intermediates generated by certain biologically active compounds, influencing their therapeutic and toxic effects.
Purpose of the Study:
- To review the role of reactive quinone methide (QM) intermediates in drug pathogenesis.
- To explore the chemotherapeutic potential of anticancer drugs that generate QM electrophiles.
- To highlight the challenge of modulating QM reactivity for targeted drug design.
Main Methods:
- Literature review focusing on biologically active compounds generating QM intermediates.
- Analysis of anticancer drugs acting via QM electrophile generation.
- Discussion of the relationship between QM reactivity and biological target interaction.
Main Results:
- Several anticancer drugs function by generating QM electrophiles.
- The reactivity of QM intermediates dictates their interaction with critical biological targets.
- Drug-induced toxicity and antiproliferative effects are consequences of QM-protein interactions.
Conclusions:
- Medicinal chemists face challenges in modulating QM reactivity for therapeutic benefit.
- Understanding QM-target interactions is essential for designing more specific QM-generating chemotherapeutic agents.
- Exploiting antiproliferative effects of QM-generating drugs holds promise for cancer treatment.
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