Project description:Retinoblastoma (RB) is a malignant intraocular neoplasm occurs mostly in children. The malignancy caused due to altered miRNA expression in cancer tumors and circulating body fluids has been reported in several cancers. The aberrantly expressed microRNAs are useful for diagnosis and prognosticating the tumors. Circulating miRNAs have been identified as potential markers in neoplastic and non -neoplastic diseases. The aim of the study involves identifying microRNA signatures of serum of Retinoblastoma and possible use of differential miRNA as unique biomarker for RB. Agilent Single Color Whole miRNA microarray: 14 advanced stage Retinoblastoma Serum (pooled) Vs 14 Non-Retinoblastoma Serum (pooled) samples

2012-10-31 | E-GEOD-41321 | biostudies-arrayexpress

Differential microRNA expression profiles in Retinoblastoma serum

2012-10-31 | GSE41321 | GEO

Non-coding and coding transcriptional profiles are significantly altered in pediatric Retinoblastoma tumors

Project description:Non-coding and coding transcriptional profiles are significantly altered in pediatric Retinoblastoma tumors

| PRJNA517916 | ENA

QUANTITATIVE PHOSPHOPROTEOMIC PROFILING OF PRIMARY RETINOBLASTOMA TUMORS

Project description:Retinoblastoma is a malignant tumor of the retina which most often occurs in children below 5 years of age with an incident rate of about 1 in 15,000 to 18,000 live births. Retinoblastoma is the first ever cancer that was reported to have a genetic basis. It occurs widely due to inactivating mutations in RB1 gene. Gene expression studies, copy number variation analysis, epigenetic profiling including miRNA and methylation of retinoblastoma has been carried to understand the disease mechanism and key players in the disease. Our group has earlier performed differential proteomics of retinoblastoma to identify proteins of therapeutic importance. However, there are no studies to understand the signalling mechanisms associated with retinoblastoma. Hence, global phosphoproteomics of retinoblastoma was carried out to identify signalling events associated with this cancer. Our study identified stress response proteins to be hyper phosphorylated which included H2AFX and sirtuin 1. In particular, Ser140 of H2AFX also known as gamma-H2AX was found to be hyperphosphorylated in retinoblastoma that indicated activation of DNA damage response pathways. We also observed activation of anti-apoptotic proteins in retinoblastoma compared to control. These observations showed activation of survival pathways and signalling networks activated in tumors.

2019-11-11 | PXD007228 | Pride

Expression of PRAME in retinoblastoma primary tumors

Project description:Transcriptome analysis of partially degraded and fragmented RNA samples from retinoblastoma primary tumors. Global gene expression profiling has shown great promise in high-throughput biomarker discovery for early disease detection in Retinoblastoma tumors. In this analysis we have used 3 retinoblastoma primary tumors in triplicates which was normalised against human healthy Retina. Here, we have used nanogram scale of retinoblastoma RNA, processed in HUMAN GENE 1.0 ST ARRAYS.

2010-10-14 | GSE24673 | GEO

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