FIGURE 4. BMDCs fuse with cells in the heart.
From the following article:
Fusion of bone-marrow-derived cells with Purkinje neurons, cardiomyocytes and hepatocytes
Manuel Alvarez-Dolado, Ricardo Pardal, Jose M. Garcia-Verdugo, John R. Fike, Hyun O. Lee, Klaus Pfeffer, Carlos Lois, Sean J. Morrison and Arturo Alvarez-Buylla
Nature 425, 968-973(30 October 2003)
doi:10.1038/nature02069
a–d, Sections at 50 
m (a), 1.5 m (b, c) and electron microscopy (d) sections showing a 
-gal+ cardiomyocyte in a R26R mouse transplanted with -actin-Cre–GFP-expressing bone marrow cells. Note that -gal+ cardiomyocytes follow the orientation of other fibres. e, Electron microscopy photomicrograph showing mature structures of a -gal+ cardiomyocyte (-gal precipitates, arrows), such as intercalated discs (arrowhead) and filament bands. f, g, A group of three -gal+ cardiomyocytes (f) were positive for cardiac troponin I (g) but negative for GFP (h). Scale bars: a, f, 25 m; b, 20 m; c, 10 m; d, 5 m; e, 1 m.
