dapi  (Vector Laboratories)

Journal: Journal of Translational Autoimmunity

Article Title: T cell proliferative response to a homocitrullinated peptide correlates with joint pathology in collagen induced arthritis

doi: 10.1016/j.jtauto.2025.100345

Figure Lengend Snippet: Citrullinated and Homocitrullinated Proteins/Peptides are Present in DBA/1J Metatarsophalangeal Joints. A) Representative hematoxylin + eosin (H&E) at 80× magnification and immunofluorescent micrographs at 20× magnification of joints from DBA/1J mice immunized with bovine type II collagen (arthritic: N = 9; non-arthritic: N = 10) or PBS (N = 9). Scale bars represent 500 μm. Max projections of Z-stacks show nuclei (DAPI; blue), citrullinated proteins/peptides (CitP; green), and homocitrullinated proteins/peptides (HomoCitP; red). Corrected total fluorescence intensity for B) CitP and C) HomoCitP in three joint structures: bone marrow, synovium, and cartilage. Graphs show the median [IQR], with each symbol representing an individual mouse. Statistical analysis was performed using Kruskal-Wallis with Dunn's multiple comparisons test, and the resulting p-values were p = 0.0046, p = 0.0084, p = 0.4076, p = 0.0143, p = 0.0136, and p = 0.1733 respectively, with p-values for pairwise comparisons indicated on the graphs. ns: not significant.

Article Snippet: Following application of TrueView autofluorescence quencher, slides were mounted using Vectashield Vibrance Antifade mounting media with DAPI (SP-8500-15; Vector Laboratories; USA) and air dried for 2 h before imaging on the Nikon Ti2-E microscope.

Techniques: Fluorescence

Journal: bioRxiv

Article Title: A Biphasic Effect of Alcohol on Endothelial Plasticity Through Regulation of Endothelial-to-Mesenchymal Transition

doi: 10.64898/2026.04.14.718463

Figure Lengend Snippet: (a) (b) Representative images of immunofluorescently stained carotid cross sections from sham-operated and ligated controls, moderate EtOH, and Binge EtOH experimental groups (males). Blue = Dapi nuclear stain, red = Tm-Cdh5+, and white=αSMA+. (c) Cells co-expressing Cdh5 and αSMA (i.e., myo-endothelial cells indicative of EndMT) were quantified using QuPath bioimage analysis software in carotid cross sections post-ligation from controls (grey bars), moderate EtOH (green bars), and binge EtOH (red bars) experimental groups. Bar graphs show cumulative data expressed as % Myoendothelial cells /full cross section, % Myoendothelial cells /neointima, or Number of myoendothelial cells/full cross section. Data are mean±SEM, n=25-30 sections from 5-6 mice). *p<0.05, ** P<0.001, **** p<0.0001.

Article Snippet: Cells were incubated with primary antibody in 1/10 th gelatin in PBS for 2-3 h. Following 3X washes, cells were incubated with flourescently-labelled secondary antibody for 1-2 h. Following 3x washes cells were mounted on slides using Vectashield Plus Antifade mount medium with DAPI (Cat. # H20002, Vector Laboratories) and scanned with confocal microscope (Nikon A1R HD, Pikachu).

Techniques: Staining, Expressing, Software, Ligation