Studying Fibroblast Activation in Kidney Cancer
Author Information
Author(s): Larrinaga Gorka, Redrado Miriam, Loizaga-Iriarte Ana, Pérez-Fernández Amparo, Santos-Martín Aida, Angulo Javier C., Fernández José A., Calvo Alfonso, López José I.
Primary Institution: University of the Basque Country (UPV/EHU)
Hypothesis
The study aims to characterize the spatial distribution of fibroblast activation protein-α (FAP)-expressing cancer-associated fibroblasts in clear cell renal cell carcinoma (ccRCC) and their relationship with immune cells.
Conclusion
FAP-expressing cancer-associated fibroblasts contribute to the aggressiveness of ccRCC and are linked to worse cancer-specific survival.
Supporting Evidence
- FAP+ CAFs were significantly concentrated at the tumor periphery.
- Increased levels of CD68+ and CD4+FOXP3+ cells were linked to worse cancer-specific survival.
- High percentages of FAP+ CAFs correlated with larger tumors and synchronous metastases.
- Co-occurrence of elevated FAP+ CAFs, T-cytotoxic, T-regulatory cells, and macrophages at the tumor center was associated with worse CSS.
Takeaway
This study looks at how certain cells in kidney tumors can affect how aggressive the cancer is and how well patients do.
Methodology
Multiplex immunofluorescence analysis was conducted on tumor samples from 88 patients with ccRCC to assess the spatial distribution of various immune and stromal cell populations.
Potential Biases
Potential bias in patient selection as only those with complete clinical and pathological data were included.
Limitations
The study primarily included early-stage ccRCCs, which may limit the generalizability of the findings to more advanced cases.
Participant Demographics
The cohort consisted of 88 patients, predominantly male (60 males, 28 females), with an average age of 61.7 years.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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