Papers › Local migration quantification method for scratch assays
Local migration quantification method for scratch assays
Motivation: The scratch assay is a standard experimental protocol used to characterize cell migration. It can be used to identify genes that regulate migration and evaluate the efficacy of potential drugs that inhibit cancer invasion. In these experiments, a scratch is made on a cell monolayer and recolonisation of the scratched region is imaged to quantify cell migration rates. A drawback of this methodology is the lack of its reproducibility resulting in irregular cell-free areas with crooked leading edges. Existing quantification methods deal poorly with such resulting irregularities present in the data. Results: We introduce a new quantification method that can analyse low quality experimental data. By considering in-silico and in-vitro data, we show that the method provides a more accurate statistical classification of the migration rates than two established quantification methods. The application of this method will enable the quantification of migration rates of scratch assay data previously unsuitable for analysis. Availability and Implementation: The source code and the implementation of the algorithm as a GUI along with an example dataset and user instructions, are available in https://bitbucket.org/anavictoria-ponce/local_migration_quantification_scratch_assays/src/master/. The datasets are available in https://ganymed.math.uni-heidelberg.de/~victoria/publications.shtml.
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