Met is expressed in Her2-overexpressing cell lines and Her2 (+) breast tumors. Met is expressed in Her2-overexpressing cell lines and Her2 (+) breast tumors. A, whole-cell lysates from the Her2-overexpressing cell lines SKBR3, BT474, and MDA-MB-361 were analyzed for Met, Her2, and actin content by SDS-PAGE followed by Western blot. B, tissue lysates from 10 Her2 (+) human tumors were analyzed for Met, Her2, and actin expression by SDS-PAGE followed by Western blot. David L. Shattuck et al. Cancer Res 2008;68:1471-1477 ©2008 by American Association for Cancer Research