Interestingly, so far most studies on CML cells focused on the analysis of the dependence of telomere length on telomerase activity (Brümmendorf et al. 2000; Drummond et al. 2004, 2005; Wenn et al. 2015; Bouillon et al. 2018), but characterization of the telomeric complex and telomere maintenance, including shelterin complex, in CD34+ CML cells has never been analyzed in detail. The gene discussed is CD34; the disease is chronic myelogenous leukemia, BCR-ABL1 positive.