ERK Activity in Wound Healing of MDCK Cells (video) National Institutes of Natural Sciences Share Print E-Mail Loading video... Caption Confluent MDCK cells expressing EKAREV-NLS, which were scratched on the right side, started collective migration. Red and blue indicate high and low ERK activity, respectively. Credit Kazuhiro Aoki Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.