The authors inadvertently omitted The California Breast Cancer Research Program from their acknowledgment of support for the research and findings published in the article “Role of Cell Surface Metalloprotease MT1-MMP in Epithelial Cell Migration over Laminin-5” by Naohiko Koshikawa, Gianluigi Giannelli, Vincenzo Cirulli, Kaoru Miyazaki, and Vito Quaranta.