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Updated: Jun 6, 2025

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Engineering Oncogenic Heterozygous Gain-of-Function Mutations in Human Hematopoietic Stem and Progenitor Cells
Published on: March 10, 2023
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Targeting clonal mutations with synthetic microbes
1The University of Southern California Keck School of Medicine, The United States.
Critical Reviews in Oncology/Hematology
|November 29, 2024
Summary
A novel strategy, Oncolytic Vector Efficient Replication Contingent on Omnipresent Mutation Engagement (OVERCOME), targets clonal cancer mutations. This approach uses engineered bacteria that activate upon detecting mutations present in all cancer cells.
Area of Science:
- Oncology
- Genomics
- Bacteriology
Background:
- Large-scale cancer genomics studies reveal clonal mutations in most tumors.
- Clonal mutations, present in all cancer cells, are potential therapeutic targets.
- Current targeted therapies for clonal mutations face feasibility challenges.
Purpose of the Study:
- To propose a novel therapeutic strategy exploiting clonal cancer mutations.
- To introduce the "Oncolytic Vector Efficient Replication Contingent on Omnipresent Mutation Engagement" (OVERCOME) approach.
- To outline the potential use of bioengineered bacteria in cancer treatment.
Main Methods:
- Conceptualization of the OVERCOME strategy.
- Proposal of using a bioengineered facultative intracellular bacterium.
- Design of bacteria with conditional attenuation reversal based on mutation detection.
Main Results:
- The OVERCOME strategy offers a new way to target clonal mutations.
- Engineered bacteria could be attenuated and activated by specific mutations.
- This approach holds promise for personalized cancer therapy.
Conclusions:
- The OVERCOME strategy presents a viable new avenue for cancer treatment.
- Targeting clonal mutations with engineered bacteria could overcome current limitations.
- Further research into bioengineered bacterial vectors is warranted.
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