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Monocarboxylate transporters MCT1 and MCT4 are independent prognostic biomarkers for the survival of patients with clear cell renal cell carcinoma and those receiving therapy targeting angiogenesis. | LitMetric

AI Article Synopsis

  • This study investigates the role of monocarboxylate transporters MCT1 and MCT4 as prognostic biomarkers in clear cell renal cell carcinoma (ccRCC), especially for patients undergoing angiogenesis-targeting therapy.
  • Researchers analyzed a cohort of 150 ccRCC patients, assessing the expression of MCT1 and MCT4 through immunohistochemistry, while tracking correlations with various clinical outcomes and survival.
  • The findings indicate that high levels of MCT1 and MCT4 are independently associated with poorer progression-free survival (PFS) among all patients and those receiving targeted therapy, establishing them as potential prognostic markers for disease outcomes.

Article Abstract

Background: Prognostic biomarkers for patients with clear cell renal cell carcinoma (ccRCC), particularly those receiving therapy targeting angiogenesis, are not well established. In this study, we examined the correlations of monocarboxylate transporter 1 (MCT1) and MCT4, 2 critical transporters for glycolytic metabolism, with various clinicopathological parameters as well as survival of patients with ccRCC and those treated with vascular endothelial growth factor receptor (VEGFR) inhibitors.

Methods: A cohort of 150 ccRCC patients were recruited into this study. All patients underwent radical or partial nephrectomy as the first-line treatment, and 38 received targeted therapy (sorafenib or sunitinib) after the surgery. Expression levels of MCT1, MCT4, and CD34 were examined by immunohistochemistry. Correlations between MCT1 or MCT4 expression and different clinicopathological parameters or patient survival were analyzed among all as well as patients receiving targeted therapy.

Results: MCT1 or MCT4 expression did not significantly correlate with sex, age, tumor diameter, microvascular density, tumor staging, pathological Furmann grade, or MSKCC (P>0.05). High expression of either MCT1 or MCT4 significantly correlated with reduced overall survival (OS) and progression-free survival (PFS) among the total cohort of ccRCC patients. For patients receiving targeted therapy, high expression of either MCT1 or MCT4 significantly correlated with reduced PFS, but not OS. Both conditions were independent prognostic biomarkers for reduced PFS among all patients or those receiving targeted therapy.

Conclusion: MCT1 and MCT4 are prognostic biomarkers for patients with ccRCC or those receiving targeted therapy. High expression of these 2 proteins predicts reduced PFS in these patients.

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Source
http://dx.doi.org/10.1016/j.urolonc.2018.03.014DOI Listing

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