Figure 3

Labeled cell tracking and characterization in transversal sections at day 3 post-surgery. Representative epifluorescence merged images of control and PBM-treated wounds showing tissue morphology and labeled-cells distribution in both groups. White asterisks are showing structures suggestive of blood vessels with cells inside (a). Bar graphs showing the total cells (DAPI—blue), total pericytes (NG2⁺), undifferentiated cells (Nestin⁺), and Type-2 pericytes (Nestin⁺NG2⁺—yellow) (mean fluorescence) quantification (b). Hematoxylin and eosin-stained (H&E) sections of the full-thickness excisional wound of both groups at day 3 post-surgery (c). Data are shown as the mean ± SD, n = 5 for each group. Scale bar = 100 µm.