New molecular targets in non clear renal cell carcinoma: An overview of ongoing clinical trials

Chiara Ciccarese, Francesco Massari, Matteo Santoni, Daniel Y.C. Heng, Valeria Sotte, Matteo Brunelli, Alessandro Conti, Liang Cheng, Antonio Lopez-Beltran, Marina Scarpelli, Stefano Cascinu, Giampaolo Tortora, Rodolfo Montironi

Research output: Contribution to journalReview articlepeer-review

17 Scopus citations

Abstract

Non-clear cell renal cell carcinomas (nccRCCs) are a heterogeneous group of tumors, characterized by different histological features, molecular alterations, clinical outcomes, and responses to treatment. According to the 2004 WHO classification, 50 different histotypes were recognized. In 2013, five new distinct epithelial tumors and three provisional entities have been added to this classification, relying on morphology, immunohistochemistry, cytogenetics, and molecular pathology advances. Targeted therapies against VEGF and mTOR pathways have become the cornerstones of the treatment for clear cell RCC, dramatically revolutionizing the patients' prognosis. Interestingly, other than mTOR and VEGF pathways, tumor proliferation of some nccRCC histotypes seems to depend on alternative signaling pathways, as demonstrated by the close correlation between papillary RCC and activation of the HGF/MET axis. Currently, several strategies are under evaluation in patients with nccRCC. These approaches include TKIs and mTOR inhibitors, MET-pathway antagonists and immunotherapy. The aim of this review is to analyze the rationale for the use of TKIs and mTOR inhibitors as treatment options for nccRCC and to describe the future therapeutic perspectives for these patients.

Original languageEnglish (US)
Pages (from-to)614-622
Number of pages9
JournalCancer Treatment Reviews
Volume41
Issue number7
DOIs
StatePublished - Jul 1 2015

Keywords

  • Clinical trials
  • Immunotherapy
  • Non clear cell renal cell carcinoma
  • Prognosis
  • Tyrosine kinase inhibitors

ASJC Scopus subject areas

  • Oncology
  • Radiology Nuclear Medicine and imaging
  • Medicine(all)

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