Osteoprogenitor cells from non-regenerative bone show greater resistance to cellular stress than those from regenerative bone.

ABSTRACT:

Introduction

Bone regeneration following injury depends on osteoprogenitor cells derived predominantly from the periosteum. Incomplete regeneration has been attributed to both cell-extrinsic factors (e.g., environment, inflammation, mechanical instability) and cell-intrinsic factors (e.g., impaired proliferation or differentiation of stem cells). In the digit amputation mouse model, amputation through the third phalanx (P3) supports complete regeneration, while amputation through the second phalanx (P2) results in callus formation and scarring. Periosteal cells are known to be the major contributing cell source for repair and regeneration. Yet the healing outcomes of P2 and P3 amputations are significantly different. This study tests whether P2 and P3 cells are functionally equival

SUBMITTER: Broussard J 

PROVIDER: S-EPMC12756367 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature