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Omics · study · 2026

Therapeutic bacteria-trained NK cells confer long-term protection against cancer metastasis

Listed in NCBI GEO

We report that a single dose of therapeutic Salmonella, a prominent anti-tumor bacterial therapy, provides long-lasting protection against metastasis in mice by inducing trained NK cells.

Description

Integrated functional and multi-omics analyses revealed that Salmonella-trained NK (stNK) cells establish an enduring reprogrammed epigenome characterized by enhanced pro-survival signaling and immune effector functions, resulting in more potent IFN-gamma release and cytotoxicity upon secondary stimulation.

We further showed that this training requires a transient pulse of IL-12 combined with sustained IL-18 signaling. Crucially, stNK cells significantly outperform conventional immune checkpoint therapies, including PD-1 and TIGIT blockade, in preventing metastasis, underscoring the unique immunological mechanisms in combating metastasis.

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From keywords
Life Sciences
Inferred from text
Cancer 75%
Provenance · 1 source records, 8 field assertions
SourceKeyLast seenRaw
NCBI GEOGSE33335015 d agoJSON v1
FieldAssertionExtractorEvidence
access_levelsource · NCBI GEOconnector:ncbi_geo@1.0.0
concepts[disease].local:disease:cancerenrichment · NCBI GEOkeyword-concept-rules@1.0.0title+description (75%)
concepts[field].local:field:life-sciencesmapping · NCBI GEOconnector:ncbi_geo@1.0.0
concepts[method].geo_series_type:expression-profiling-by-high-throughput-sequencingsource · NCBI GEOconnector:ncbi_geo@1.0.0/gdstype
concepts[organism].NCBITaxon:10090source · NCBI GEOconnector:ncbi_geo@1.0.0/taxon
descriptionsource · NCBI GEOconnector:ncbi_geo@1.0.0/summary
publication_datesource · NCBI GEOconnector:ncbi_geo@1.0.0
titlesource · NCBI GEOconnector:ncbi_geo@1.0.0/title