What is the job of the enzyme telomerase?

Telomerase is the enzyme responsible for maintenance of the length of telomeres by addition of guanine-rich repetitive sequences. Telomerase activity is exhibited in gametes and stem and tumor cells. In human somatic cells proliferation potential is strictly limited and senescence follows approximately 50-70 cell divisions.

i think that is new experiments yield untrustworthy data and should be carefully considered, because you don't know what will happen with the experiments.