Project description:Both cigarette smoking and obesity have been implicated in increased risk of clear cell renal cell carcinoma (ccRCC); however, there are limited data regarding the molecular mechanisms that underlie these associations. We used a multi-stage design to identify and validate specific molecular targets that are associated with smoking or obesity-related ccRCC.
Project description:Multi-Omics analysis to gain novel insights into clear cell renal carcinoma aetiology and progression. The DNA methylation data of 121 clear clear renal carcinoma (ccRCC) were integrated with WGS and transcriptomic data using Multi-Omics Factor Analysis (MOFA) to detect the inter-patient variations related to aetiological and disease progression related factors.
Project description:Clear cell papillary renal cell carcinoma (CCPRCC) is a low-grade renal neoplasm with morphological characteristics mimicking both clear cell renal cell carcinoma (CCRCC) and papillary renal cell carcinoma (PRCC). However, despite some overlapping features, their morphological, immunohistochemical, and molecular profiles are distinct. To better understand the biology of this tumor, we analyze the miRNA expression profiles of a set of CCPRCC by microarrays.
Project description:Approximately 70% of clear cell renal cell carcinoma are characterised by the biallelic inactivation of VHL on chromosome 3p. ELOC-mutated renal cell carcinoma with biallelic ELOC inactivation on chromosome 8q are considered a novel subtype of renal cancer possessing a morphological overlap with ccRCC; however, the frequency and consequences of ELOC alterations in wtVHL and mutVHL is unclear. In this study, we characterise 123 renal tumours with clear cell morphology with known VHL mutation status to assess morphological and molecular consequences of ELOC inactivation. Using Oncoscan and whole exome sequencing we identify 18 ELOC deleted RCC, three of which contain ELOC mutations resulting in the biallelic inactivation of ELOC. Biallelic ELOC and biallelic VHL aberrations were mutually exclusive, although two ELOC-mutated RCC showed monoallelic VHL alterations. Using High Ambiguity Driven Biomolecular Docking we report a novel ELOC variant containing a duplication event disrupting ELOC-pVHL interaction alongside the frequently seen Y79C alteration. Using HRM mass spectrometry we show RCC with biallelic ELOC alterations have significantly reduced ELOC expression but similar CAIX and VEGFA expression when compared to classical ccRCC with VHL inactivation. These data demonstrate that RCC with ELOC and VHL alterations have comparable downstream effects with similar pathways to ccRCC tumourigenesis indicating that both entities are closely related.
