Journal: Frontiers in Immunology
Article Title: Synergistic effects of platelet-rich fibrin and CTLA4Ig gene-transfected porcine skin on accelerating wound healing in a rat model of deep second-degree burns: a mechanistic study
doi: 10.3389/fimmu.2025.1756818
Figure Lengend Snippet: Immunohistochemical analysis of vascular endothelial growth factor expression. Representative images of VEGF staining (brown) in wound tissues from the Vaseline group, PRF group, Pigskin group, and PRF+pig skin group on Days 4, 7, 14, and 21. Robust cytoplasmic VEGF immunoreactivity, with a distribution pattern consistent with expression in fibroblasts, endothelial cells, and infiltrating mononuclear cells, is observed within the granulation tissue of the PRF group and PRF+pig skin group, particularly during the early and middle phases of healing. Scale bar = 100 μm.
Article Snippet: Briefly, after deparaffinization, rehydration, and antigen retrieval (citrate buffer, pH 6.0, for CD31 and VEGF; EDTA buffer, pH 9.0, for IL-6 and TNF-α), sections were incubated overnight at 4 °C with the respective primary antibodies: Rabbit anti-rat CD31 (1:500, Cat# 33075-1-AP, Proteintech), Rabbit anti-rat VEGF (1:500, Cat# 26157-1-AP, Proteintech), Rabbit anti-rat IL-6 (1:500, Cat# 21865-1-AP, Proteintech), and Rabbit anti-rat TNF-α (1:500, Cat# 17590-1-AP, Proteintech).
Techniques: Immunohistochemical staining, Expressing, Staining