Currently, iPS has a high risk of teratoma or malignancy. We haven't yet been able to induce pluripotency in a safe manner. I do believe that it is likely that

Currently, iPS has a high risk of teratoma or malignancy. We haven't yet been able to induce pluripotency in a safe manner. I do believe that it is likely that one day we will overcome this obstacle, however having youthful multipotent cells will remain an advantage then. Age-damage to cells increases the risk of malignancy when inducing stemness.