Prognostic significance of the programmed death ligand 1 expression in clear cell renal cell carcinoma and correlation with the tumor microenvironment and hypoxia-inducible factor expression.


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Dogan H. T. , Kiran M., Bilgin B., Kilicarslan A., Sendur M. A. N. , Yalcin B., ...More

Diagnostic pathology, vol.13, pp.60, 2018 (Journal Indexed in SCI Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 13
  • Publication Date: 2018
  • Doi Number: 10.1186/s13000-018-0742-8
  • Title of Journal : Diagnostic pathology
  • Page Numbers: pp.60

Abstract

Background: Clear cell renal cell carcinoma (ccRCC) is the most common renal malignancy. Hypoxia-inducible factors, HIF-1 alpha and HIF-2 alpha, are expressed in the majority of ccRCC. Targeting immune checkpoints with the blockade of PD-1 and its ligand PD-L1 reorganizes T-cell activity in tumor microenvironment and provides important antitumor responses. PD-L1 upregulation has been found to be hypoxia-inducible factor (HIF) dependent. Our aim is to demonstrate the association between PD-L1 and HIF expression and to reveal the role of PD-L1 in prognosis and its association with tumor microenvironment.