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Lindner, AK; Martowicz, A; Untergasser, G; Haybaeck, J; Compérat, E; Kocher, F; Seeber, A; Thurnher, M; Pichler, R.
CXCR3 Expression Is Associated with Advanced Tumor Stage and Grade Influencing Survival after Surgery of Localised Renal Cell Carcinoma.
CANCERS. 2023; 15(4):
Doi: 10.3390/cancers15041001
[OPEN ACCESS]
Web of Science
PubMed
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- Co-Autor*innen der Med Uni Graz
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Haybäck Johannes
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- Abstract:
- BACKGROUND: Surgery is the standard treatment in localized renal cell carcinoma (RCC). Pembrolizumab is now approved for adjuvant therapy in high-risk patients. However, inhomogeneity of studies gives ambiguity which patient benefit most from adjuvant therapy. A high infiltration of CD8+ T cells is known to be linked with poor prognosis in RCC. CXCR3 is a key player of CD8+ T cell differentiation and infiltration. We aimed to evaluate CXCR3 as a potential marker for predicting recurrence. METHODS: CXCR3 and immune cell subsets (CD4, CD8, CD68 and FoXP3) were measured on RCC samples by multiplex immunofluorescence (mIF) staining. Cellular localization of CXCR3 was evaluated using single-cell RNA analysis on a publicly available dataset. RESULTS: Tumor samples of 42 RCC patients were analyzed, from which 59.5% were classified as clear-cell RCC and of which 20 had recurrence. Single-cell RNA analysis revealed that CXCR3 was predominantly expressed in intratumoral T cells and dendritic cells. CXCR3 expression was higher in advanced tumors stages (p = 0.0044) and grade (p = 0.0518), correlating significantly with a higher CD8+ T cell expression (p < 0.001). Patients with CXCR3high RCCs had also a significant shorter RFS compared to CXCR3low (median: 78 vs. 147 months, p = 0.0213). In addition, also tumor stage pT3/4 (p < 0.0001) as well as grade G3/4 (p = 0.0008) negatively influenced RFS. CONCLUSION: CXCR3high cell density was associated with high T cell infiltration and advanced tumor stage, worsening RFS in surgically resected RCC patients. Beside its prognostic value, CXCR3 might be a predictive biomarker to guide therapy decision for adjuvant therapy in localized RCC.
- Find related publications in this database (Keywords)
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CXCR3 expression
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chemokines
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renal cell carcinoma
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recurrence
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immunohistochemistry
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adjuvant immunotherapy
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biomarker