Multi-omics analyses reveal interactions between GREM1+ fibroblasts and SPP1+ macrophages in gastric cancer
Abstract Gastric cancer (GC) is among the most lethal human malignancies with limited treatment options. Cell-cell interactions within the tumor microenvironment (TME) can promote tumor growth, yet their therapeutic value has not been fully explored. Here, bulk RNA-seq, single-cell RNA sequencing (s...
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| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2025-06-01
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| Series: | npj Precision Oncology |
| Online Access: | https://doi.org/10.1038/s41698-025-00967-w |
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| Summary: | Abstract Gastric cancer (GC) is among the most lethal human malignancies with limited treatment options. Cell-cell interactions within the tumor microenvironment (TME) can promote tumor growth, yet their therapeutic value has not been fully explored. Here, bulk RNA-seq, single-cell RNA sequencing (scRNA-seq), and spatial transcriptomics (ST) were integrated to analyze the heterogeneity of GC microenvironment. Tumor-specific GREM1+ fibroblasts and SPP1+ macrophages were significantly enriched in GC tissues and were involved in immunosuppression, inflammation regulation, and tumor progression. We then indicated that GREM1+ fibroblasts and SPP1+ macrophages were positively correlated in 12 independent GC datasets and validated their close localization by multiplex immunohistochemistry staining and spatial transcriptomics. Patients with both high GREM1+ fibroblasts and SPP1+ macrophages exhibited significantly shorter OS and showed enrichment of tumor-associated pathways. Our results demonstrated the complex interactions between GREM1+ fibroblasts and SPP1+ macrophages, which may serve as a potential therapeutic target for future treatment of GC. |
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| ISSN: | 2397-768X |