Multiomics Dissection Reveals Natural Killer Cell-CD8+ T-cell Cooperation in Shaping an Immunostimulatory Tumor Microenvironment.

Natural killer and CD8+ T cells cooperate to convert poorly infiltrated tumors into inflamed, immune-responsive environments, with NK cell infiltration occurring early after vaccination.

• Why it matters: Overcoming immune evasion is crucial for improving cancer immunotherapy, especially in tumors with low immune cell infiltration, where effective immune responses are often absent.
• What they did: Using spatial transcriptomics, single-cell RNA sequencing, and flow cytometry, the study analyzed immune interactions in tumors, revealing NK cell and T cell cooperation involving chemokine signaling pathways.
• The result: This cooperation enhances cytotoxic activity and immune engagement, offering a mechanistic basis for designing vaccines that activate innate and adaptive immunity to improve tumor responses.