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Sustained nitric oxide production by engineered <i>E. coli</i> remodels the tumor microenvironment and potentiates immunotherapy

Nature Biotechnology, Published online: 18 March 2026; doi:10.1038/s41587-026-03054-y

Solid tumors are sensitized to anti‑PD‑L1 immunotherapy by engineered E. coli to produce nitric oxide.
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