ABOUT THE COVER
6-thio-dG induces persistent telomere damage in conjunction with extensive genomic DNA damage in telomerase-positive cells several days after drug withdrawal. This is detail of an image of HFF + hTERT cells stained by FISH-immunofluorescence using a telomere specific PNA probe (red) and γH2AX staining (green). Yellow fluorescent spots indicate co-localization of DNA damage (γH2AX) and telomere signal (TelC).