Two Nature Biotechnology papers report that transplanting human embryonic stem cell–derived spinal cord neural stem cells restored forelimb and hand function in rhesus monkeys with spinal cord injury. Researchers documented functional recovery in a substantial fraction of trials and provide histological and behavioral evidence of circuit repair. The studies, coordinated by multiple academic groups and using H9‑scNSCs, show recovery of dexterous forelimb tasks in preclinical primate models. Authors framed the work as a major translational step toward human spinal cord cell therapy, while noting the need to define dosing, long‑term safety and immunosuppression strategies before clinical translation.