Project description:MicroRNAs are involved in the pathogenesis of several tumors, however, there have been no data on microRNA expression in pheochromocytomas to date. In this study we have performed microRNA expression profiling in sporadic benign, hereditary benign (multiplex endocrine neoplasia type 2-related and von Hippel-Lindau syndrome-related pheochromocytomas), and sporadic recurring adrenomedullary tumors. Due to the rarity of these neoplasms, the retrieval of sufficient quantities of fresh or immediately snap frozen tumor samples is difficult, therefore the applicability of formalin-fixed paraffin-embedded tissue samples for the analysis of microRNA expression in pheochromocytomas was examined.
Project description:In total, 89 samples were collected from 89 patients with colorectal cancer (CRC), of which 66 patients had stage IV CRC. We sequenced the mRNAs purified from the formalin-fixed paraffin embedded (FFPE) blocks.
Project description:To investigate the microRNA profiles of ovarian clear cell carcinoma (OCCC), microRNA sequencing was performed using formalin-fixed, paraffin-embedded (FFPE) and fresh-frozen clinical samples. Moreover, patient-derived xenograft (PDX) tumors and cell lines were also investigated.
Project description:Genome wide DNA methylation profiling of formalin-fixed paraffin-embedded (FFPE) melanoma tissue samples from patients prior to treatment with anti-PD1 immune checkpoint inhibitor therapy. The MethylationEPIC v1.0 BeadChip array was used to obtain DNA methylation profiles across approximately 850,000 CpGs in bisulfite treated DNAs extracted from formalin-fixed paraffin embedded melanoma tissues prior to treatment with anti-PD1 immune checkpoint inhibitor therapy.
Project description:A study to evaluate techniques for repairing DNA from formalin-fixed paraffin-embedded (FFPE) tissue samples by direct comparison of FFPE DNA repair methods prior to analysis on genome-wide methylation array to matched fresh frozen (FF) tissues. Formalin-fixed paraffin-embedded tissue from three colon adenocarcinoma samples were subjected to different FFPE-oriented DNA repair approaches and sequences, then compared with corresponding fresh frozen tissues. All samples were hybridized to the Illumina Infinium 450k Human Methylation BeadChip.
