Biomimetic nanostructural materials based on placental amniotic membrane-derived nanofibers for self-healing and anti-adhesion during cesarean section

作者：Honglei Zhu, Fenghua Liu, Yuru Liao, Huayan Li, Kunjie Gao, Xiaomei Liang, Haoyuan Jiang, Feng Chen, Jianwei Wu, Qian Wang, Yifeng Wang, Xintao Shuai, Yi Xiao · 发表于：Biomaterials · 年份：2025 · DOI：10.1016/j.biomaterials.2024.123081 · 被引用次数：11 · 研究领域：Tissue Engineering and Regenerative Medicine、Electrospun Nanofibers in Biomedical Applications、Congenital Anomalies and Fetal Surgery

Cesarean section (CS) is highly prevalent surgery among females. However, current absorbable anti-adhesion membranes used clinically can partially prevent postoperative adhesions but show limited efficacy in tissue regeneration, leaving post-cesarean women at risk for severe complications including cesarean scar pregnancy, placenta previa, and uterine rupture. Herein, we designed a fully amniotic membrane (AM)-derived biomimetic nanostructural materials (AM-BNMs) as an anti-adhesion barrier, and validated its therapeutic efficacy in a rat CS model. The biomaterial consisted of AM-extracellular matrix (ECM) nanofibers, enriched with hemostatic proteins (collagen, S100A8, S100A9, etc.), carrying AM mesenchymal stem cells (MSCs)-secretome that exhibited significantly elevated levels of pro-regenerative factors (miR-302a-3p, angiogenin, VEGF, etc.) compared to endogenous secretion. The reconstituted AM-BNMs demonstrated synergistic effects at CS wounds, effectively preventing adhesion formation while promoting hemostasis and tissue regeneration. In summary, this readily accessible human-derived biomaterial shows promising potential in preventing adhesion-related complications and enhancing uterine wound healing, thereby promoting female reproductive health. • Fully amniotic membrane (AM)-derived materials prevent post-cesarean complications: adhesions and impaired healing. • Biomimetic nanostructural materials composed of human AM-ECM nanofibers and AM-MSCs secretome. • AM-ECM na...