BioProject

Background: MicroRNAs are noncoding RNA molecules of ~22 nucleotides with diagnostic and therapeutic action, affecting the expression of mRNAs involved in invasion, migration, and development. More...

Background: MicroRNAs are noncoding RNA molecules of ~22 nucleotides with diagnostic and therapeutic action, affecting the expression of mRNAs involved in invasion, migration, and development. miR-200c is part of the miR-200c/141 cluster on chromosome 12p13. Its mechanism of action when encapsulated is critical in lung cancer when patients express changes in miRNAs. miR-200c be a potential biomarkers for various lung diseases. As a potential therapy, miR-200c can impact lives as target lung cancer is a leading cause of death with about 234,000 cases annually, high heterogeneity, complex screening, and a 5-year survival rate of 16%. Encapsulated miR-200c efficiently enhances bioavailability, pharmacokinetics of therapeutics and targeting to cells, improves efficacy and provides potential cure. Methods: The functions of miR-200c were determined in non-metastatic KW-634 and metastatic 821-T4 and 821-LN mouse lung cancer cell lines after various nano vehicle treatments. Viability and cytotoxicity were determined by cell cycle and quantitative real-time PCR analyses were used to quantify levels of miR-200c and its target genes. In situ hybridization was used to visualize patterns of expression of miR-200c and others in the lung and many organs. Next-generation sequencing, invasion and migration assays using transwell chambers, and ActivSignal were used to elucidate the activation and inhibition profiles and perform direct expression measurements and modification of cellular components. Overall design: 18 samples in triplicates. 3 controls and 3 treatments for each of the 3 cancer cells. Less...