Journal: Neural Regeneration Research
Article Title: Microglia overexpressing brain-derived neurotrophic factor promote vascular repair and functional recovery in mice after spinal cord injury
doi: 10.4103/NRR.NRR-D-24-00381
Figure Lengend Snippet: BDNF overexpression primarily by microglia but not by macrophages promotes functional recovery after spinal cord injury. (A, B) Experimental timeline of spinal cord injury in TMEM:BDNF mice and CX3:BDNF + PLX73086 mice. (C, F) Detection of induction efficiency in TMEM:BDNF mice. Scale bar: 200 μm. Nuclei: blue, P2RY12: green, mCherry (mCherry is used to label tdTomato proteins, a red fluorescent protein. mCherry labelled cells here are mainly TMEM119 positive cells): red, Iba1: magenta. (D, G) Unlike PLX5622, PLX73086 did not affect the number of microglia in the spinal cord. Scale bar: 200 μm. DAPI: Blue, Iba1: Red. (E, H) PLX73086 exhibits effective scavenging of peripheral macrophages. Scale bar: 500 μm. Nuclei: blue, F4/80: red. (I, J) BMS scores after spinal cord injury in the TMEM:BDNF and CX3:BDNF + PLX73086 groups (I, *** P < 0.001, sham group vs. SCI group. ## P < 0.01, SCI group vs. SCI-TMEM:BDNF group; J, *** P < 0.001, sham group vs . SCI group. ### P < 0.001, SCI group vs. SCI-CX3:BDNF + PLX73086 group). Mean ± SD (F). Unpaired t -test (G, H). Two-way repeated-measures analysis of variance with Bonferroni post hoc test (I, J). *** P < 0.001 in G. The mice used in C and F were TMEM:BDNF, and there were six mice in each group. The mice used in D, E, G, H, and F were C57BL/6J mice, and there were six mice in each group. In Figure I, C57BL/6J mice were used in the Sham group, SCI group, and WT group, and CX3:BDNF mice were used in the SCI-TMEM:BDNF group, and there were six mice in each group. In Figure J, C57BL/6J mice were used in the Sham, SCI, and WT groups, and CX3:BDNF mice were used in the SCI-CX3:BDNF + PLX73086 group, and there were six mice in each group. BDNF: Brain-derived neurotrophic factor; DAPI: 4’,6-diamidino-2-phenylindole; D1: day 1; SCI: spinal cord injury.
Article Snippet: Rabbit anti-IL-1β , IL-1β , 1:500 , 12703S , , Cell Signaling Technology, Danvers, MA, USA.
Techniques: Over Expression, Functional Assay, Derivative Assay