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Transcriptomic Characterization of wilms tumor

ABSTRACT: Transcriptomic Characterization of wilms tumor

PROVIDER: PRJNA577648 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR10279674_1.fastq.gz	Fastqsanger.gz
	SRR10279674_2.fastq.gz	Fastqsanger.gz
	SRR10279675_1.fastq.gz	Fastqsanger.gz
	SRR10279675_2.fastq.gz	Fastqsanger.gz
	SRR10279676_1.fastq.gz	Fastqsanger.gz

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Transcriptomic Characterization of wilms tumor

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Project description:Abstract: Background: MiRNA signatures in human sera have been reported for various tumor diseases. Here we generated miRNA profiles analyzing 1205 mature miRNA transcripts of serum samples of Wilms tumor patients, taken prior and after chemotherapy according to SIOP protocol 2001. Using a feature subset selection filter approach we identified a minimal number of miRNAs with a maximum contribution for the classification between treated and untreated patients and between patients and controls. Results: Analyzing 1205 mature miRNAs, we separated controls and Wilms tumor patients prior chemotherapy with an accuracy of 0.81. We obtained a similar accuracy (0.82) for the separation between controls and sera of Wilms tumor patients after preoperative chemotherapy. We identified 23 miRNAs that were differentially expressed in both comparisons. Subset selection improved the overall classification accuracy between controls and Wilms tumor patients prior and after chemotherapy to 0.94 and 0.91, respectively. Subset selection also allowed separating between Wilms tumor patients prior and after chemotherapy with an accuracy of 0.98. Conclusion: Our analysis identified serum based miRNA signatures that allowed separating between controls, untreated Wilms tumor patients, and Wilms tumor patients after chemotherapy with high accuracy for each of these comparisons.

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Project description:Blood-borne miRNA signatures have recently been reported for various tumor diseases. Here, we compared the miRNA signature in Wilms tumor patients prior to and after preoperative chemotherapy according to the SIOP protocol 2001. We did not find a significant difference between the miRNA signatures of both groups. However, both Wilms tumor patients prior to and after chemotherapy showed a miRNA signature different from that of healthy controls. The signature of Wilms tumor patients prior to chemotherapy showed an accuracy of 97.5% and of patients after chemotherapy an accuracy of 97.0%, each as compared to healthy controls. Our results provide evidence for a blood-borne Wilms tumor miRNA signature largely independent of four weeks preoperative chemotherapy treatment.

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Prospective isolation and characterization of renal cancer stem cells from human Wilms' tumor xenografts leads to tumor eradication

Project description:Downregulation of specific microRNAs contribute to epithelial-mesenchymal transition of Wilms' tumor cancer initiating cells. In order to gain insight into the biology of initiating cells/cancer stem cells (CIC/CSCs) in Wilms' tumor, we compared the microRNA expression profile of un-sorted propagatable WT xenografts (p-WT Xn), p-WT NCAM+ALDH1+-derived Xn and human fetal kidneys (hFKs). Global microRNA expression analysis showed specific microRNAs to differentially express identifying a strong miRNA signature for the NCAM+ALDH1+ WT CICs.

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Project description:The aim of the study was to identify differentially expressed miRNAs in different Wilms tumor subtypes.

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