Expression of Tropomyosin 1 Gene Isoforms in Human Breast Cancer Cell Lines

Figure 2

Merged photograph of one “normal” (MCF10A) and three malignant (MDAMB468, MDAMB157, and MCF7) human breast cell lines after staining with TM311, phalloidin, and DAPI. The stress fibers are the linear lines that contain both actin and tropomyosin resulting in a variety of colors depending on the background, while the nuclei are stained blue with DAPI. The cell lines were given the following stress fiber scores: MCF10A ++++, MDAMB468 +++, MDAMB157 ++, and MCF7 negative.