Abstract
ABSTRACT: BACKGROUND: Blood-born miRNA signatures have recently been reported for various tumor diseases. Here, we compared themiRNA signature in Wilms tumor patients prior and after preoperative chemotherapy according to SIOPprotocol 2001. RESULTS: We did not find a significant difference between miRNA signature of both groups. However both, Wilmstumor patients prior and after chemotherapy showed a miRNA signature different from healthy controls. Thesignature of Wilms tumor patients prior to chemotherapy showed an accuracy of 97.5\% and of patients afterchemotherapy an accuracy of 97.0\%, each as compared to healthy controls. CONCLUSION: Our results provide evidence for a blood-born Wilms tumor miRNA signature largely independent of fourweeks preoperative chemotherapy treatment.
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