Project description:Purpose: hsa_circ_0005505 stably knockdown cells (circ-sh1 and circ-sh2) and its corresponing control cells (con-sh) were constructed using its specific shRNAs. Next-generation sequencing (NGS) has used to examine hsa_circ_0005505 regulated transcripts. Methods: mRNA profiles of circsh1, circsh2 and con-sh were generated by deep sequencing using IlluminaI HiSeq 4000. The sequence reads that passed quality filters were analyzed at the transcript isoform level with two methods: Burrows–Wheeler Aligner (BWA) followed by ANOVA (ANOVA) and TopHat followed by Cufflinks. qRT–PCR validation was performed using SYBR Green assays Results: We found 816 and 909 transcripts downregulated in circ-sh1 and circ-sh2 cells compared with con-sh cells, respectively. But 712 and 723 transcripts upregulated in circ-sh1 and circ-sh2 cells compared with con-sh cells, respectively. The differential expression with a fold change ≥1.5 and p value <0.05. Conclusions: Our study represents the first detailed analysis of hsa_circ_0005505-regulated transcripts in breast cancer cells.
Project description:Primary objectives: The primary objective is to investigate circulating tumor DNA (ctDNA) via deep sequencing for mutation detection and by whole genome sequencing for copy number analyses before start (baseline) with regorafenib and at defined time points during administration of regorafenib for treatment efficacy in colorectal cancer patients in terms of overall survival (OS).
Primary endpoints: circulating tumor DNA (ctDNA) via deep sequencing for mutation detection and by whole genome sequencing for copy number analyses before start (baseline) with regorafenib and at defined time points during administration of regorafenib for treatment efficacy in colorectal cancer patients in terms of overall survival (OS).