Cancer Biology


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0 Q&A 11846 Views Sep 5, 2013
The invasive ability of cancer cells is a crucial function for cancer metastasis and the surrounding microenvironment of cancer cells in living tissues is three-dimension (3D). Therefore, to establish an in vitro invasion assay in a 3D system to predict cancer invasive ability is valuable in the research for cancer metastasis. Here, we describe a 3D invasion assay for observing the morphology and comparing the invasive ability of cancer cells in artificial 3D environments (Yang et al., 2012). Collagen I gels are used to cover on the top of cancer cells attached on coverslip glass dish and medium containing FBS is added as a chemoattractant. After incubation for a suitable time, the cells are fixed and stained. The invasion index can be calculated and the morphology can be imaged with a laser confocal microscope.

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