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Synthesis and Characterization of an Aspirin-fumarate Prodrug that Inhibits NFκB Activity and Breast Cancer Stem Cells
Published on: January 18, 2017
Synergistic enzymatic and bioorthogonal reactions for selective prodrug activation in living systems
Qingxin Yao1,2, Feng Lin3,4, Xinyuan Fan4
1CAS Center for Excellence in Nanoscience, CAS Key Laboratory of Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology, Beijing, 100190, China.
Abstract:
Adverse drug reactions (ADRs) restrict the maximum doses applicable in chemotherapy, which leads to failure in cancer treatment. Various approaches, including nano-drug and prodrug strategies aimed at reducing ADRs, have been developed, but these strategies have their own pitfalls. A renovated strategy for ADR reduction is urgently needed. Here, we employ an enzymatic supramolecular self-assembly process to accumulate a bioorthogonal decaging reaction trigger inside targeted cancer cells, enabling spatiotemporally controlled, synergistic prodrug activation. The bioorthogonally activated prodrug exhibits significantly enhanced potency against cancer cells compared with normal cells. This prodrug activation strategy further demonstrates high tumour inhibition efficacy with satisfactory biocompatibility, pharmacokinetics, and safety in vivo. We envision that integration of enzymatic and bioorthogonal reactions will serve as a general small-molecule-based strategy for alleviation of ADRs in chemotherapy.
Insights
This study introduces a new strategy to reduce chemotherapy
Area of Science:
- Biochemistry
- Molecular Biology
- Cancer Therapeutics
Background:
- Adverse drug reactions (ADRs) limit chemotherapy efficacy by restricting drug dosage.
- Existing strategies like nano-drugs and prodrugs have limitations in reducing ADRs.
- A novel approach is needed to mitigate ADRs and improve cancer treatment outcomes.
Purpose of the Study:
- To develop a new strategy for reducing ADRs in chemotherapy.
- To achieve spatiotemporally controlled and synergistic prodrug activation.
- To enhance cancer cell potency while minimizing toxicity to normal cells.
Main Methods:
- Utilized an enzymatic supramolecular self-assembly process.
- Accumulated a bioorthogonal decaging reaction trigger within targeted cancer cells.
- Enabled controlled prodrug activation through enzymatic and bioorthogonal reactions.
Main Results:
- The bioorthogonally activated prodrug showed significantly enhanced potency against cancer cells.
- Demonstrated high tumor inhibition efficacy in vivo.
- Exhibited satisfactory biocompatibility, pharmacokinetics, and safety profiles.
Conclusions:
- The integration of enzymatic and bioorthogonal reactions offers a promising strategy for ADR reduction.
- This approach enables targeted and controlled prodrug activation for improved cancer therapy.
- The developed method holds potential as a general small-molecule-based strategy for chemotherapy ADR alleviation.
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