Spatial multiomics reveals a subpopulation of fibroblasts associated with cancer stemness in human hepatocellular carcinoma
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View abstract on PubMed
Summary
This summary is machine-generated.Researchers identified a new cancer-associated fibroblast (CAF) subtype, F5-CAF, in liver cancer. This F5-CAF promotes cancer stemness and is linked to worse patient prognosis, offering insights into liver cancer development.
Area Of Science
- Oncology
- Cancer Biology
- Tumor Microenvironment Research
Background
- Cancer-associated fibroblasts (CAFs) are key components of the tumor microenvironment (TME).
- Specific CAF roles in coordinating liver TME cell populations for cancer progression are not fully understood.
Purpose Of The Study
- To identify and characterize CAF subpopulations within the liver TME.
- To elucidate the spatial distribution and functional impact of CAFs on hepatocellular carcinoma (HCC) progression.
Main Methods
- Integrated multi-region proteomics, spatial transcriptomics (10X Genomics Visium), and multiplexed imaging.
- Validation of identified CAF subpopulations through cell isolation and in vitro functional assays.
Main Results
- A novel CAF subpopulation, F5-CAF (marked by COL1A2, COL4A1, COL4A2, CTGF, FSTL1), was identified in liver cancer.
- F5-CAFs colocalize with stem-like cancer cells in HCC and are associated with worse prognosis in patients.
- In vitro studies confirmed F5-CAFs promote HCC cell proliferation and stemness.
Conclusions
- A distinct F5-CAF subpopulation in liver cancer is linked to cancer stemness and poor prognosis.
- This CAF subset may promote liver cancer development by supporting cancer stem cell survival within the TME.
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