Fig. 3From: Detection of mesenchymal stem cells senescence by prelamin A accumulation at the nuclear levelCell-cycle arrested cells are positive for prelamin A. Representative images of MSC immunostained for prelamin A (green), Ki67, and p21 (both red in the panels). Cell nuclei were counterstained with DAPI (blue) and merged images are shown in the last column. Prelamin A positive cells (arrows) are negative for Ki67 and positive for p21. Scale bar 10 µmBack to article page