A 3D ColMA-Based Tenogenic Microenvironment Unveils the Behavior of Tendon Stem/Progenitor Cells (TSPCs) from Tendinopathic Surgical Explants.

ABSTRACT: Tendon injuries present significant clinical challenges due to limited intrinsic healing and complex pathological mechanisms. Here, we developed a novel 3D bioprinted methacrylated type I collagen (ColMA) scaffold integrated with Growth Differentiation Factor-5 (GDF-5)-loaded Poly (lactic-co-glycolic acid) (PLGA) nanoparticles and dynamically cultured it under perfusion to establish a tenogenic microenvironment in vitro. Pathological human Tendon Stem/Progenitor Cells (hTSPCs) derived from tendinopathic surgical explants were encapsulated to investigate their impaired extracellular matrix (ECM) deposition and associated pro-inflammatory signaling. GDF-5-loaded nanoparticles (average diameter 140 ± 40 nm) were fabricated via microfluidic-assisted nanoprecipitation and homogeneously incorpor

SUBMITTER: Cortella G 

PROVIDER: S-EPMC12729981 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature