[EVALUATION OF AN OPTIMIZING PROTOCOL FOR FABRICATING A SCAFFOLD DERIVED FROM PORCINE SKELETAL MUSCLE EXTRACELLULAR MATRIX].

Evidence from laboratory and animal studies provides groundwork for understanding mechanisms and potential before human studies continue.

• Level A · Stronger Clinical Evidence
• Level B · Emerging clinical evidence with positive signals
• Level C · Early human research exploring benefits
• Level D · Scientific groundwork from lab and animal studies
• Emerging · Emerging topic under active research

Abstract (original English)

To explore an optimized protocol of decellularization to fabricate an ideal scaffold derived from porcine skeletal muscle acellular matrix. Serial-step protocol of homogenating-milling-detergent method was used to fabricate decellularized porcine muscle tissue (DPMT) derived from native porcine skeletal muscle tissue from adult pig waist. Histological method was used to assess the effects of decellularization and degreasing. Sirius red staining was used to analyze collagen components. Scanning electron microscopy, BCA assay, and PicoGreen assay were used to evaluate the ultrastructure, total protein content, and DNA content in DPMT. The adipose derived stem cells (ADSCs), NIH3T3 cells, and human umbilical vein endothelial cells (HUVECs) were cultured in extraction liquor of DPMT in different concentrations for 1, 3, and 5 days, then the relative growth rate was calculated with cell counting kit 8 to assess the toxicity in vitro . Live/dead cell staining was used to evaluate the cytocompatibility by seeding HUVECs on the surface of DPMT and co-cultured in vitro for 3 days. For in vivo test, DPMT was subcutaneously implanted at dorsal site of male specific-pathogen free Sprague Dawley rats and harvested after 3, 7, 14, and 28 days. Gross obersvation was done and transverse diameter of remained DPMT in vivo was determined. HE staining and immunohistochemical staining of CD31 were

Evidence level

Evidence from laboratory and animal studies provides groundwork for understanding mechanisms and potential before human studies continue.

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