ArticleNature nanotechnology2026
Activating a B cell immune response regresses immunologically cold tumours.
Article in Nature nanotechnology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Authors and funding
18 authors.
Funding
Abstract
Progress in immuno-oncology has been stymied by poorly immunogenic 'cold' tumours and the focus on T cells at the cost of other immune cells. Here we report that AT-1965, a small molecule in a lipid nanoparticle, induces rapid regression of poorly immunogenic tumours with the formation of immune memory through interaction with Cap-specific RNA (nucleoside-2'-O-)-methyltransferase 2 (CMTR2) in cancer cells, triggering an innate inflammatory viral defence response. AT-1965-treated tumours were found to be highly infiltrated with B cells, which are known to act as early responders to viral signatures. Genetic knockout of functional B cells abrogated the anti-tumour efficacy of AT-1965, directly implicating B cells in the anti-tumour outcome. Our results rationalize clinical data showing that patients with high CMTR2 expression in tumours have a poor prognosis and that B cell infiltration is associated with long-term survival in multiple tumour types. The AT-1965 nanomedicine-inspired discovery of CMTR2 as a potential cancer target and B cell recruitment opens a new frontier for immuno-oncology.
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