That's a great sign, and a really nice target to choose to develop. This doesn't mean that it will be safe in another patient population (though it'll probably

That's a great sign, and a really nice target to choose to develop. This doesn't mean that it will be safe in another patient population (though it'll probably be okay), nor do these animal studies guarantee efficacy in humans. Humans have very different regenerative potentials compared to mice or zebrafish, or a more extreme example: axolotl. Additionally, drugs that target regeneration must walk a fine line between regenerating damaged tissue and overstimulating growth pathways (cancer).