Journal: Annals of Translational Medicine
Article Title: Telomere dysfunction promotes small vessel vasculitis via the LL37-NETs-dependent mechanism
doi: 10.21037/atm.2020.02.130
Figure Lengend Snippet: Higher levels of LL37 expression and NET release are determined in patients with SVV. (A) Telomere length of SVV and HCs by real-time Q-PCR; (B) levels of LL37 in serum from the disease group and healthy group; (C) levels of LL37 in urine from the disease group and healthy group; (D) levels of NET remnants in serum from patients with SVV or HCs; (E) levels of cf-DNA in serum from patients with SVV or HCs (A-E). N=70 for each group. The error bars of the graph represent the SEM. Unpaired Student’s t-test was conducted to analyze the statistical significance of two independent experiments; (F) an Alexa 488-labeled antibody against H2A-H2B-DNA complexes was used to visualize NETs in green, and DAPI was used to stain the nuclei in blue. Pictures were merged to form an overlay image; (G) H2A-H2B-DNA complexes, LL37, and nuclei are stained green, red, and blue, respectively. Pictures were merged to form an overlay image. A.U., arbitrary unit.
Article Snippet: A FITC-labeled PNA probe specific for (TTAGGG)n sequences (PANAGENE, Korea) was co-denatured with the slide at 80 °C for 3 min and hybridized at RT for 2 h. Slides were then incubated first with the mouse-anti-human LL37 (HM2070, Hycult biotech, The Netherlands) and rabbit-anti-γH2AX (MABE205, Millipore, USA) antibodies, followed by the secondary Alexa-Fluor-594-labeled goat-anti-mouse antibody and Alexa-Fluor-488-labeled goat-anti-rabbit antibody.
Techniques: Expressing, Labeling, Staining