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Resolving the spatial and cellular architecture of intra-tumor heterogeneity by multi-region dissection of lung adenocarcinoma

doi: 10.1016/j.jgg.2025.02.006
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This study is supported by the National Natural Science Foundation of China (82002432 to J. W., 82302068 to M. Z., and 32300568 to T. W.), the Natural Science Foundation of Shandong Province (ZR2024MH159 to Y. Z., ZR2020QH179 to J. W., ZR2022QH057 to M. Z., and ZR2021QH005 to T.W.), and the China Postdoctoral Science Foundation (2024M752006 to S. M.).

  • Received Date: 2025-01-18
  • Accepted Date: 2025-02-14
  • Rev Recd Date: 2025-02-12
  • Available Online: 2025-07-11
  • Although the spatial characteristics within the tumor microenvironment (TME) of lung adenocarcinoma (LUAD) have been identified, the mechanisms by which these factors promote LUAD progression and immune evasion remain unclear. Using spatial transcriptomics (ST) and single-cell RNA-sequencing (scRNA-seq) data from multi-regional LUAD biopsies consisting of tumor core, tumor edge, and normal area, we sought to delineate the spatial heterogeneity and driving factors of cell colocalization. Two cancer cell sub-clusters (Cancer_c1 and Cancer_c2), associated with LUAD initiation and metastasis, respectively, exhibit distinct spatial distributions and immune cell colocalizations. In particular, Cancer_c1, enriched within the tumor core, could directly interact with B cells or indirectly recruit B cells through macrophages. Conversely, Cancer_c2 enriched within the tumor edge exhibits colocalization with CD8+ T cells. Collectively, our work elucidates the spatial distribution of cancer cell subtypes and their interaction with immune cells in the core and edge of LUAD, providing insights for developing therapeutic strategies for cancer intervention.

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    通讯作者: 陈斌, bchen63@163.com
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      沈阳化工大学材料科学与工程学院 沈阳 110142

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