학술논문

Human lung cancer harbors spatially organized stem-immunity hubs associated with response to immunotherapy
Document Type
Article
Source
Nature Immunology; April 2024, Vol. 25 Issue: 4 p644-658, 15p
Subject
Language
ISSN
15292908; 15292916
Abstract
The organization of immune cells in human tumors is not well understood. Immunogenic tumors harbor spatially localized multicellular ‘immunity hubs’ defined by expression of the T cell-attracting chemokines CXCL10/CXCL11and abundant T cells. Here, we examined immunity hubs in human pre-immunotherapy lung cancer specimens and found an association with beneficial response to PD-1 blockade. Critically, we discovered the stem-immunity hub, a subtype of immunity hub strongly associated with favorable PD-1-blockade outcome. This hub is distinct from mature tertiary lymphoid structures and is enriched for stem-like TCF7+PD-1+CD8+T cells, activated CCR7+LAMP3+dendritic cells and CCL19+fibroblasts as well as chemokines that organize these cells. Within the stem-immunity hub, we find preferential interactions between CXCL10+macrophages and TCF7−CD8+T cells as well as between mature regulatory dendritic cells and TCF7+CD4+and regulatory T cells. These results provide a picture of the spatial organization of the human intratumoral immune response and its relevance to patient immunotherapy outcomes.