Journal: Frontiers in Neuroscience
Article Title: USP22 knockdown attenuates P. gingivalis -induced EndoMT and CNS inflammation: a link between periodontitis and neuroinflammation
doi: 10.3389/fnins.2026.1790970
Figure Lengend Snippet: Endothelial-specific knockdown of USP22 inhibited EndoMT and hippocampal inflammation. (A) Representative images showed the colocalization of GFP signal (green) and CD31 immunofluorescence (red) in mouse hippocampus. Scale bar: 200 μm. (B) The representative blots showed the changes in ZO-1, Claudin5, α-SMA, and iNOS expression within the hippocampus in the control group and P. gingivalis -infected mice injected with USP22-shRNA AAV. (C) Bar graph with scatter points showed the quantification of USP22 in (A) . (D) Bar graph with scatter points showed the quantification of ZO-1 in (A) . (E) Bar graph with scatter points showed the quantification of Claudin5 in (A) . (F) Bar graph with scatter points showed the quantification of α-SMA in (A) . (G) Bar graph with scatter points showed the quantification of iNOS in (A) . (H,I) Bar graphs with scatter points showed the quantification of IL-1β mRNA (H) and IL-6 mRNA (I) in the control group and P. gingivalis -infected mice injected with USP22-shRNA AAV. * p < 0.05, ** p < 0.01, and *** p < 0.001.
Article Snippet: HBMECs were exposed to 100 ng/mL LPS from P. gingivalis (tlrl-pglps, InvivoGen) for 24 h.
Techniques: Knockdown, Immunofluorescence, Expressing, Control, Infection, Injection, shRNA