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Genomic and proteomic approaches to renal cell carcinoma Zacchia M; Vilasi A; Capasso A; Morelli F; De Vita F; Capasso GJ Nephrol 2011[Mar]; 24 (2): 155-64Renal cell carcinoma (RCC) is a frequent adult malignancy comprising different subtypes, with clear cell renal cell carcinoma (CCRCC) the most common. CCRCC is associated with the loss of function of the von Hippel-Lindau (VHL) gene. pVHL, the product of the VHL gene, is a component of an E3 ubiquitin ligase complex which targets proteins for degradation. In the absence of functional pVHL, a series of proteins accumulate in the cells, including hypoxic-inducible factor-1a (HIF-1a) and the products of the target genes of pVHL, such as vascular endothelial growth factor (VEGF). The activation of this pathway explains the use of both VEGF and VEGF-receptor inhibitors (bevacizumab, sunitinib and sorafenib) in the therapy of advanced CCRCC. In addition, mammalian target of rapamycin (mTOR), an intracellular serine/threonine kinase, is also implicated in HIF-1a regulation, thus reinforcing the rationale for using mTOR inhibitors (rapamycin) in CCRCC. Proteomic technologies have been applied to human renal cancer to detect biomarkers able to guide physicians for diagnostic and prognostic purposes. Among others, vimentin, heat shock protein 27 (Hsp27), annexin IV and serum amyloid alpha-1 (SAA-1) have been identified as reliable markers of RCC that are potentially useful in the clinical setting.|Biomarkers, Tumor/metabolism[MESH]|Carcinoma, Renal Cell/genetics/metabolism/*therapy[MESH]|DNA, Neoplasm/genetics[MESH]|Gene Expression Regulation, Neoplastic[MESH]|Genomics/*methods[MESH]|Humans[MESH]|Kidney Neoplasms/genetics/metabolism/*therapy[MESH]|Prognosis[MESH]|Proteomics/*methods[MESH] |
