Journal: JCI Insight
Article Title: Inhibiting triggering receptor expressed on myeloid cells 1 signaling to ameliorate skin fibrosis
doi: 10.1172/jci.insight.176319
Figure Lengend Snippet: ( A ) Skin biopsies from patients with SSc ( n = 8) and individuals acting as healthy controls ( n = 4) were immunolabeled with antibodies against pSyk or ASMA, and immunofluorescence was visualized by Nikon A1R laser scanning confocal microscope. The percentage of immuno-positive cells (mean percentages from 4 randomly selected regions) was quantified. Mann-Whitney U test. P values are shown. Original magnification, ×40. ( B ) Confluent SSc skin fibroblasts ( n = 8, top; n = 3, bottom) were incubated with GF9 for 24 hours, and mRNA levels were quantitated by real-time quantitative PCR. Results were normalized with GAPDH and are shown as the mean ± SD of triplicate determinations from individual patients. Paired t test. P values are shown. ( C ) SSc fibroblasts ( n = 6) were immunolabeled using antibodies against collagen I, ASMA, or pSyk. Scale bar: 100 μm. Representative images and relative fluorescence intensities (mean ± SEM from 3 randomly selected regions) are shown.
Article Snippet: For immunofluorescence, paraffin-embedded skin sections were incubated with antibodies against ASMA (Sigma-Aldrich, 1:100, A5228), pSyk (CST 2710S, 1:100), pDAP12 (ab314891, 1:100), CD45 (14-0451-82, 1:100), CD3(sc-20047; 1:100), TREM-1 (Invitrogen PA5-47090, 1:100), anti-CD11b antibody (Abcam AB133357, 1:100), procollagen I (Sigma-Aldrich, MAB1912 1:200), or perilipin (Abcam; ab61682) followed by appropriate secondary antibodies.
Techniques: Immunolabeling, Immunofluorescence, Microscopy, MANN-WHITNEY, Incubation, Real-time Polymerase Chain Reaction, Fluorescence