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Identification of novel long non-coding RNAs as biomarker for patients with renal cell carcinoma

ABSTRACT: Long non-coding RNAs (lncRNA) play an important role in carcinogenesis, but knowledge of lncRNA expression in renal cell carcinoma is rudimental. We screened 32,183 lncRNA transcripts in malignant and adjacent normal renal tissue and determined dysregulation of approximately 4% of the lncRNA transcripts in clear cell renal cell carcinoma tissue. The distinct changes of lncRNA expression may be used to develop a non-invasive biomarker, because lncRNAs are detectable in bodily fluids.

ORGANISM(S): Homo sapiens

PROVIDER: GSE61763 | GEO | 2015/02/18

SECONDARY ACCESSION(S): PRJNA262078

REPOSITORIES: GEO

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Identification of novel long non-coding RNAs as biomarker for patients with renal cell carcinoma

Project description:Long non-coding RNAs (lncRNA) play an important role in carcinogenesis, but knowledge of lncRNA expression in renal cell carcinoma is rudimental. We screened 32,183 lncRNA transcripts in malignant and adjacent normal renal tissue and determined dysregulation of approximately 4% of the lncRNA transcripts in clear cell renal cell carcinoma tissue. The distinct changes of lncRNA expression may be used to develop a non-invasive biomarker, because lncRNAs are detectable in bodily fluids. Microarray experiments were performed to determine the expression of 32,183 lncRNA transcripts belonging to 17,512 lncRNAs in 15 corresponding normal and malignant renal tissues

2015-02-18 | E-GEOD-61763 | biostudies-arrayexpress

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Project description:In transplantation, there is a critical need for non-invasive biomarker platforms for monitoring immunologic rejection. We hypothesized that transplanted tissues release donor specific exosomes into recipient circulation/ bodily fluids, and that the quantitation and profiling of their intra-exosomal cargoes would constitute a novel biomarker platform for monitoring rejection. We tested this hypothesis in a human into mouse xenogeneic islet transplant model, and validated the concept in clinical settings of islet and renal transplantation. In the xenogeneic model, islet transplant exosomes in recipient blood were quantified over long-term follow-up using anti-human leukocyte antigen (HLA) antibody that is only expressed on human islets (p=1.6x10-14). Transplant islet exosomes were purified using anti-HLA antibody conjugated beads and their cargoes contained bona fide islet endocrine hormone markers insulin, glucagon, and somatostatin. Rejection led to significant decrease in transplant islet exosome signal (p=4x10-15), along with distinct changes in its microRNA and proteomic profiles prior to appearance of hyperglycemia. In the clinical settings of islet (n=5) and renal (n=5) transplantation, donor exosomes with respective tissue specificity for islet β cells and renal epithelial cells were reliably characterized in recipient plasma over follow-up (up to 5 years; p=0.0001). Collectively, these findings demonstrate the biomarker potential of transplant exosome characterization for providing a non-invasive window into the conditional state of the transplant tissue.

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Transplant tissue specfic exosome platform for noninvasive monitoring of immunologic rejection [mRNA]

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cirDNA methylome analysis in prostate cancer

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The overall response of Paenibacillus larvae to bodily fluids of honeybee larvae (Apis mellifera).

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