Figure 3: Tissue repair after scar ablation and transplantation. A (Control group) and B (Treatment group) are cross sections at the injury epicenter and the others in the same rows are their local magnifications, respectively. Panels in the left and middle columns are H.E. staining while those in the right column are GFAP immunostaining. Spared tissue, repaired tissue and lesion cavity are clearly marked, and the glial scars with sharp edge are pointed out by arrows. In the treatment group (B row), development of repaired tissue, disappearance of the lesion cavities, integration of repaired tissue with spared tissue (B’), and disappearance of glial scar (B”) are all obviously observed. SCI: spinal cord injury; SA: scar ablation; LP: LP transplantation; OEC: OEC transplantation. ST: spared tissue; DR: dorsal root; Scale bars: 0.5 mm (left column), 50 μm (all others). (Replicated from Zhang, 2011 with permission).