Journal: Bioactive Materials

Article Title: Injection site dictates the immune response to a biodegradable polymer and corresponding collagen regeneration

doi: 10.1016/j.bioactmat.2026.04.004

Figure Lengend Snippet: ID tissue exhibits higher densities of fibroblasts, macrophages, and microvessels compared to SC tissue. Immunofluorescence analysis comparing the expression of Vimentin (a fibroblast marker), CD68 (a macrophage marker), and CD31 (an endothelial cell marker) in ID and SC tissues. For each group, n = 3; data represent mean ± s.d.; ∗P < 0.05 and ∗∗P < 0.01.

Article Snippet: After antigen retrieval and blocking, sections were incubated overnight at 4 °C with primary antibodies targeting vimentin, CD68 (ABclonal, A20803), CD31 (R&D SYSTEMS, AF3628), HMGB1 (Cell Signaling Technology, 3935), HSP70 (ABclonal, A23457), NF-κB p65 (ABclonal, A19653), CD206 (Cell Signaling Technology, 24595), and FAPα (ABclonal, A23789 ).

Techniques: Immunofluorescence, Expressing, Marker

Journal: The Journal of General Physiology

Article Title: Beat-locked ATP microdomains in the sinoatrial node map a Ca 2+ -timed energetic hierarchy and regional pacemaker roles

doi: 10.1085/jgp.202513874

Figure Lengend Snippet: Superior SA node myocytes exhibit elevated diastolic ATP and metabolic flux compared with the inferior region. (A) 3D segmented maximum-intensity projection of a whole-mount SA node immunolabeled for CD31 (vasculature, red) and cyto-iATP (myocytes, green). The dashed line denotes the boundary between superior and inferior regions. (B) Image-processing workflow illustrating merged maximum-intensity projections, binary segmentation masks, and extraction of grayscale cyto-iATP signals used for quantitative analysis. (C) Mean cyto-iATP fluorescence intensity per myocyte, grouped by region ( N = 5 mice per region), reporting expression levels of the EGFP-tagged cyto-iATP sensor. (D) Live confocal imaging of cyto-iATP signals showing representative line-scan images and corresponding normalized fluorescence traces (F/F 0 ) from superior and inferior regions. (E and F) Summary quantification of cyto-iATP signal mass rate (E) and estimated diastolic [ATP] i (F). P values are shown above comparisons. Large circles denote per-animal means; small circles indicate individual biological replicates. N represents the number of independent mice.

Article Snippet: For immunolabeling, SA nodes were incubated for 48 h at 4°C with a goat anti-mouse CD31 primary antibody (1:50, AF3628; R&D Systems).

Techniques: Immunolabeling, Extraction, Fluorescence, Expressing, Imaging