To this end, we treated CHA‐9.3 mouse lung cancer cells (Garcia‐Beccaria et al, 2015) with the compounds at 1 μM concentration during 24 h, followed by immunofluorescence analysis using anti‐TRF1 antibody to quantify TRF1 foci fluorescence (Fig 1A). This evidence concerns the gene TERF1 and lung carcinoma.