Journal
CELL HOST & MICROBE
Volume 31, Issue 10, Pages 1574-1592Publisher
CELL PRESS
DOI: 10.1016/j.chom.2023.09.006
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Bacterial delivery platforms can improve the safety and prolong the treatment time of cancer therapies. By genetically modifying bacteria, they can express a range of therapies that match multiple cancer indications. Research on gut microbe pathogenesis has led to the development of safe bacterial therapies.
Many systemically administered cancer therapies exhibit dose-limiting toxicities that reduce their effectiveness. To increase efficacy, bacterial delivery platforms have been developed that improve safety and prolong treatment. Bacteria are a unique class of therapy that selectively colonizes most solid tumors. As delivery vehicles, bacteria have been genetically modified to express a range of therapies that match multiple cancer indications. In this review, we describe a modular build-a-bugmethod that focuses on five design characand genetic control circuits. We emphasize how fundamental research into gut microbe pathogenesis has created safe bacterial therapies, some of which have entered clinical trials. The genomes of gut microbes are fertile grounds for discovery of components to improve delivery and modulate host immune responses. Future work coupling these delivery vehicles with insights from gut microbes could lead to the next generation of microbial cancer therapy.
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