Figure 1. Agarose gel electrophoresis of amplified cDNA products

Lane 1 is pBR322 Hae III digested DNA molecular weight ladder, lane 2 is a PCR blank, lane 3 is a RT blank, lane 4 is an extraction blank minus RT, lane 5 is an extraction blank plus RT, lane 6 represents nonspecific RNA minus RT, lane 7 represents nonspecific RNA plus RT, lane 8 is empty, lane 9 is nonmigrating epithelium minus RT, lane 10 is nonmigrating epithelium plus RT, lane 11 is migrating epithelium minus RT and lane 12 is migrating epithelium plus RT.