Ok, what would happen if we took out a good sample of a person's bone marrow stem cells, then selected good ones out of them and treated them with some telomerase to make them young again.
Then we would treat the patient with a nice cocktail of cytostats and senolytics to kill all transformed (pre-oncological) cell populations and also senescent and other kinds of cells in trajectories to become potentially cancerous in the future, and finally replace the patient's bone marrow with the one grown from the rejuvenated population?
I wonder if something like this has been tried with animals?