| 项目编号 | PRJCA041089 | ||||||||||
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| 项目标题 | Metabolism archetype cancer cells induce protumor TREM2+ macrophages via oxLDL-mediated metabolic interplay in hepatocellular carcinoma | ||||||||||
| 涉及领域 | Medical | ||||||||||
| 数据类型 |
Transcriptome or Gene expression
Raw sequence reads Single cell sequencing |
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| 物种名称 |
Mus musculus
Homo sapiens |
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| 描述信息 | The functional programs adopted by cancer cells and their impact on the tumor microenvironment are complex and remain elusive. Here, we identify three distinct single-cell archetypes (i.e. metabolism, stemness and inflammation) in hepatocellular carcinoma (HCC) cells, each exhibiting unique spatial distribution. Further analysis reveals an immune-suppressive niche orchestrated by metabolism archetype cancer cells and TREM2-positive tumor-associated macrophages (TREM2+TAMs), which exacerbates immune exclusion and compromises patient outcomes. Mechanistically, we demonstrate that the upregulated squalene epoxidase (SQLE) expression in metabolism archetype cancer cells facilitates the generation of oxidized LDL (oxLDL). OxLDL induces TREM2+TAM polarization through the TREM2-SYK-CEBPα axis, enabling these TAMs to promote cancer cell invasion, resistance to effector cytokines and CD8+T cell dysfunction. Importantly, cancer cell-intrinsic SQLE and TREM2+TAMs are associated with inferior immunotherapy response in human and mouse HCC. Our results highlight an oxLDL-mediated metabolic interplay between cancer cells and TREM2+TAMs, offering a promising therapeutic avenue for HCC immunotherapies. | ||||||||||
| 样品范围 | Multispecies | ||||||||||
| 发布日期 | 2025-06-03 | ||||||||||
| 出版信息 |
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| 项目资金来源 |
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| 提交者 | Weiren Liu (liu.weiren@zs-hospital.sh.cn) | ||||||||||
| 提交单位 | Zhongshan Hospital, Fudan University | ||||||||||
| 提交日期 | 2025-06-03 |