Personalized Scaffolds for Diabetic Foot Ulcer Healing Using Extracellular Matrix from Induced Pluripotent Stem‐Reprogrammed Patient Cells

摘要: Diabetic foot ulcers (DFUs) are chronic wounds sustained by pathological fibroblasts and aberrant extracellular matrix (ECM). Porous collagen‐based scaffolds (CS) have shown clinical promise for treating DFUs but may benefit from functional enhancements. Our previous work showed fibroblasts differentiated from induced pluripotent stem cells are an effective source of new ECM mimicking fetal matrix, which notably promotes scar‐free healing. Likewise, functionalizing CS with this rejuvenated ECM shows potential for DFU healing. Herein, an approach to DFU healing is demonstrated for the first time using biopsied cells from DFU patients, reprogramming those cells, and functionalizing CS with patient‐specific ECM as a personalized acellular tissue‐engineered scaffold. A two‐pronged approach is taken: 1) direct ECM blending into scaffold fabrication, and 2) seeding scaffolds with reprogrammed fibroblasts for …