Figure 4.
Therapy-resistant GSC exhibition of enhanced motility capabilities. (a) Single-cell motility assays showing that although both TMZ and anti-miR363 therapy had a significant negative effect on cell viability, only the anti-miR363 caused a significant and concomitant decrease in cell motility. (b) Continuous monitoring of single-cell motility following anti-miR363 delivery revealed that only the cells that were prone to undergoing apoptosis within the first 48 h showed a significant decrease in single-clone motility. Cells that had not undergone apoptosis past 48 h still showed marked motility, comparable to untreated and control cells. (c) In situ hybridization experiments coupled with drug-resistance studies by 3D NEP allowed us to identify the surviving and highly migratory cell population as being high in CD44 expression. Asterisks indicate p < 0.05 (Dunn’s method).