Traditionally, the soft agar colony formation assay has been used to monitor anchorage-independent growth. Cells proliferate for 3-4 weeks in a semisolid culture medium, followed by tedious manual counting of colonies.
Our CytoSelect™ 96-Well In Vitro Tumor Sensitivity Assay provides a stringent, anchorage-independent model for chemosenstivity testing and screening of potential anticancer drugs. After just 6-8 days, cell colonies are quantified using a standard colorimetricmicroplate reader.
Figure 1: CytoSelect™ 96-Well In Vitro Tumor Sensitivity Assay Principle.
Figure 2: Inhibition of HeLa Cell Anchorage-Independent Growth by Taxol. HeLa cells were cultured for 7 days in the absence (top) or presence (bottom) of 1 nM Taxol according to the assay protocol.