Figure 1. Zbtb34 elongates telomere length and increases cell proliferation. The mESCs were transfected with a Zbtb34-EGFP vector or Zbtb34-siRNA. The values of Zbtb34, TERT expression, telomere length, cell proliferation, cell apoptosis and telomerase activity are expressed as fold changes compared with control values normalized to 1. *P < 0.05, **P < 0.01. Abbreviations: mESCs: mouse embryonic stem cells; TERT: telomerase reverse transcriptase.