ArticleCancer cell international2026
Single-cell spatial analysis identifies ID1-high endothelial cells in tertiary lymphoid structures as predictors of durable response to immunotherapy in non-small cell lung cancer.
Article in Cancer cell international, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- TLS as Predictors and Targets in Neoadjuvant Chemoimmunotherapy for NSCLC.Thoracic cancer · 2026Review
- Tertiary lymphoid structures in neoadjuvant and perioperative cancer immunotherapy: a review and proposed framework for biomarker interpretation and validation.Frontiers in immunology · 2026Review
- Non-immune regulation of tertiary lymphoid structures in cancer.Frontiers in immunology · 2026Review
- The evolving role of the immune microenvironment of tumor draining lymph nodes in the development of biomarkers of non-small cell lung cancer.Frontiers in oncology · 2026Review
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24 authors.
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Abstract
backgroundTertiary lymphoid structures (TLSs) maturity and cellular composition shape resistance or sensitivity to immune-checkpoint blockade (ICB) across cancers. Single-cell spatial resolution data for the endothelial compartment of TLSs are lacking; therefore, we investigated the cellular composition, endothelial dynamics, and cell-cell interactions within TLS regions.
methodsWe applied high-resolution Xenium In Situ spatial transcriptomics to eight samples collected from non-small-cell lung cancers (NSCLC) (four after chemoimmunotherapy, four untreated), extracted 90 TLS regions, generated approximately 320,000 single-cell profiles from those regions, and analyzed the endothelial compartment within each TLS. We independently assessed the exploratory findings using multiplex immunofluorescence and survival analysis in a separate cohort of 45 patients receiving immunotherapy.
resultsSpatial mapping revealed a reproducible, B-cell-dominant TLS architecture across all samples. Mature TLSs contained CXCL13-rich follicular cores and were associated with a favorable prognosis. Within the endothelial compartment, high endothelial cells (HECs) forming high-endothelial venules (HEVs) segregated from other endothelial cells; in mature TLSs these HECs exhibited high inhibitor of DNA binding 1 (ID1) expression and an adhesion molecular signature, promoting lymphocyte recruitment. Patients with tumors harboring ID1-high HEVs showed higher response rates and pronounced survival advantage; multivariable analysis confirmed ID1-high status as an independent prognostic factor. Conversely, ICB exposure eventually reduced ID1 expression and adhesion molecule levels in HECs, impaired lymphocyte trafficking, and promoted a shift toward a remodeled endothelial state.
conclusionsID1expression, linked to HEC differentiation during TLS maturation or ICB exposure, marks a functionally mature, lymphocyte-recruiting HEV that predict durable response to immunotherapy. These findings provide a novel mechanistic framework and practical biomarkers for HEV-centered immuno-oncology strategies in NSCLC.
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