Medical researchers have uncovered a critical and previously overlooked factor behind some of the most treatment-resistant cancers. A new study reveals that specific gut and intratumoral bacteria can physically alter and degrade chemotherapy drugs, rendering life-saving treatments ineffective. By understanding this biological shield, scientists are now designing targeted antimicrobial therapies to be administered alongside oncology drugs, potentially opening a new frontier in precision medicine and restoring treatment sensitivity in advanced-stage cancer patients.
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