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Nature Biotechnology

An engineered E. coli strain sustains intratumoral nitric oxide production to boost effectiveness of tumor immunotherapy

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Nature Biotechnology, Published online: 18 March 2026; doi:10.1038/s41587-026-03055-x

An engineered Escherichia coli Nissle 1917 strain carrying a synthetic arginine–nitric oxide (NO) circuit enables sustained intratumoral NO production that promotes vascular normalization and immune reprogramming. This reshaped tumor microenvironment synergizes with blockade of the immune checkpoint PD-L1 to reinvigorate CD8+ T cells and drive durable tumor regression in mouse models.

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Nature Biotechnology

DNA–drug conjugates enable logic-gated drug delivery amplified by hybridization chain reactions

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Nature Biotechnology, Published online: 27 March 2026; doi:10.1038/s41587-026-03044-0

New capabilities for controlling drug delivery into cells are developed using DNA–drug conjugates.

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Nature Biotechnology

Unpaired data as a first-order challenge in single-cell and spatial proteomics

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Nature Biotechnology, Published online: 27 March 2026; doi:10.1038/s41587-026-03074-8

Unpaired data as a first-order challenge in single-cell and spatial proteomics

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Nature Biotechnology

Mapping cis-regulatory mutations at scale in sorghum enables modulation of gene expression

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Nature Biotechnology, Published online: 27 March 2026; doi:10.1038/s41587-026-03046-y

Variant mapping of sorghum promoters identifies CRISPR-accessible mutations that upregulate gene expression.

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