Programming and Reprogramming Cellular Age in the Era of Induced Pluripotency.

The ability to reprogram adult somatic cells back to pluripotency presents a powerful tool for studying cell-fate identity and modeling human disease. However, the reversal of cellular age during reprogramming results in an embryonic-like state of induced pluripotent stem cells (iPSCs) and their derivatives, which presents specific challenges for modeling late onset disease. This age reset requires novel methods to mimic age-related changes but also offers opportunities for studying cellular rejuvenation in real time. Here, we discuss how iPSC research may transform studies of aging and enable the precise programming of cellular age in parallel to cell-fate specification.

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