Monitoring Cell Health in Real-time / Time-lapse Cell-based Assays
Poster Feb 21, 2017
The purpose here is to validate a novel far-red DNA binding viability probe, DRAQ7™, in real-time cell based assays for 2-D and 3-D models. This requires DRAQ7™ to neither synergise nor interfere with toxicants / anti-cancer compounds. It must be capable of addition at any stage of an assay to permit real-time monitoring of membrane integrity loss, retaining its functionality throughout.
As background, DRAQ7™’s DNA-specificity allows monitoring cell-by-cell while spectral properties permit incorporation in multi-colour experiments e.g. with vital probes, mitochondrial health probes or Annexin V. DRAQ7™ has previously been shown to be truly cell impermeant yet retains DNA binding and far-red fluorescence of the DRAQ chromophore which makes it compatible with HCS imagers, fluorescence microscopes and cytometers. The excitation/emission properties are particularly suited to penetrative imaging of multi-cellular structures and thick ex-plant tissue sections, whilst limiting risks of short wavelength DNA damage.
Basic fibroblast growth factor (bFGF) is used in neural stem cell (NSC) media to maintain multipotency. Native bFGF rapidly loses biological activity when exposed to culture conditions (37°C), Heat Stable (HS) bFGF maintains > 90% homology to the native protein and ≥ 80% biological activity, even after 72 hours of exposure to 37°C.READ MORE
For circulating cell free DNA (ccfDNA) to be used in cancer research successfully, workflow standardization is essential. Access this poster to discover tips on optimal workflow control, how to yield smaller ccfDNA fragments and the differences in quantification and qualification of ccfDNA.READ MORE