Minimal control subset for pluripotency network reprogramming

Ascertain how many and which components of the pluripotency gene regulatory network state vector (e.g., specific transcription factors such as Oct4, Sox2, Nanog) must be controlled to guarantee reprogramming to the pluripotent state after inputs are removed, and determine whether and under what conditions time‑varying control of a reduced subset of transcription factors is sufficient to drive the system into the region of attraction of the pluripotent steady state.

Background

The pluripotency network exhibits multistability, and practical constraints limit simultaneous control of all transcription factors. The authors show that high‑gain feedback on all components would place the state near the desired set point, but controlling only a subset may be more feasible experimentally.

Identifying a minimal set of actuated factors or a time‑varying control policy over a subset that still ensures entry into the region of attraction of the pluripotent state would directly inform reprogramming strategies.