An Injectable BMP-2-Releasing Porous Hydrogel Regulating the Paracrine Effects of ADSCs Promotes Tendon-to-Bone Healing in Rotator Cuff Repair.

ABSTRACT: Rotator cuff tears often require surgical reconstruction; however, outcomes remain suboptimal, primarily because of the challenges in fully restoring the tendon-bone interface (TBI). The normal fibrocartilaginous transition zone is often replaced by fibrous scar tissue, thereby increasing the risk of retears. A porous hyaluronic acid methacrylate hydrogel is developed to encapsulate adipose-derived stem cells (ADSCs) and bone morphogenetic protein-2 (BMP-2). Gelatin microspheres served as porogens to create micropores within the hyaluronic acid methacrylate hydrogel (HMs), and hollow gelatin methacryloyl hydrogel microspheres are used to encapsulate BMP-2 (GMBs). In vitro experiments confirm substantial proliferation and homing of ADSCs within the porous hydrogel system. When the ADSCs-loa

SUBMITTER: Yuan M 

PROVIDER: S-EPMC12462992 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature