Pericytes are associated with laminin-expressing tumor satellites.

<p>(A) Overview image of GL261 tumor expressing high levels of laminin, scale bar is 1000 μm. (B) Higher magnification of laminin expression around the tumor border, scale bar is 200 μm. (C) GFP positive pericytes localize close to laminin-expressing tumor microsatellites outside the tumor (arrows), scale bar as in B. (D) However, they do not express laminin themselves. Scale bar is 500 μm in the low magnification image and 20 μm in the high magnification images.