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Fig. s6
Fibroblasts with contractile filaments constitute the wall of the post-infarct. (A) Heart section immunostained for a cardiac marker Tropomyosin (red), a myofibroblast marker alpha smooth muscle actin (green) and DAPI (blue). The outer rim of the post-infarct is surrounded by myofibroblasts. (A′) Higher magnification of the framed area in (A) reveals fibroblast-cardiomyocyte coupling at the edge of the invading myocardium (arrowheads). Scale bar in (A) represents 300 μm.
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Full text @ BMC Dev. Biol.