Keratinocyte Autophagy-Mediated Self-Assembling Tetrahedral Framework Nucleic Acid Induces Wound Healing and Reduces Scar Hyperplasia.

ABSTRACT: Tetrahedral framework nucleic acid (tFNA) efficiently treats various diseases; however, its effect on wound healing is unknown. We investigated tFNA's impact on human immortalized epidermal cells (HaCaT) cells and wound healing through in vitro and in vivo experiments. The tFNA is taken up by cells and exhibits good biocompatibility. Transmission electron microscopy and autophagic flux assays showed that tFNA substantially increased the number of intracellular autophagosomes, thus suggesting the activation of cell autophagy. Immunofluorescence and western blotting results indicated decreased microtubule-associated protein 1 light chain 3I (LC 3I) and prostacyclin (P62) levels, and increased microtubule-associated protein 1 light chain 3II (LC 3II), suggesting increased autophagic activity.

SUBMITTER: Jin J 

PROVIDER: S-EPMC12441305 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature