What question did this study set out to answer?

This research aims to explore the diversity of cancer-associated fibroblasts (CAFs) and their interactions within the tumor microenvironment of breast cancer.

April 17, 2026BMC CancerOpen Access

Single-cell and spatial transcriptome analysis of breast cancer tumor-associated fibroblast heterogeneity and its mediated remodeling of the tumor microenvironment

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This research aims to explore the diversity of cancer-associated fibroblasts (CAFs) and their interactions within the tumor microenvironment of breast cancer.
Integrated single-cell RNA sequencing and spatial transcriptomics from 24 samples.
Mapped intercellular networks using CellChat and reconstructed spatial maps with Seurat.
Performed trajectory analysis with Monocle2 to trace CAF developmental origins.
Validated spatial interactions through immunohistochemistry.
Identified eight major cell types and six distinct CAF subtypes.
Found positive correlation between fibroblast abundance and malignant epithelial cell prevalence.
Demonstrated spatially exclusive niches for different CAF subtypes within tumor regions.
Uncovered significant communication between malignant cells and matrix CAFs via specific ligand-receptor interactions.
Developed a prognostic signature based on specific gene expressions that correlated with patient survival outcomes.

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Implication

Analysis reveals fibroblast subtypes impacting tumor environment in breast cancer, suggesting new treatment targets.

Cite This Study

Liu et al. (2026) studied this question.

synapsesocial.com/papers/69e1cfcb5cdc762e9d858cb2 https://doi.org/10.1186/s12885-026-16003-4

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Single-cell and spatial transcriptome analysis of breast cancer tumor-associated fibroblast heterogeneity and its mediated remodeling of the tumor microenvironment

Key Points

Discussion

Implication

Cite This Study

Single-cell and spatial transcriptome analysis of breast cancer tumor-associated fibroblast heterogeneity and its mediated remodeling of the tumor microenvironment

Key Points

Discussion

Implication

Cite This Study

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