Journal: Journal of Advanced Research
Article Title: Chaperone-mediated autophagy sustains pericyte stemness necessary for brain tissue homeostasis
doi: 10.1016/j.jare.2025.04.015
Figure Lengend Snippet: Donor PC therapy restores CMA in host PCs in damaged tissue. (A) Representative images showing co-localization of puncta pattern expression of LAMP-2A protein (green) with a PC marker, α-SMA (red), analyzed in host PCs of microvessels (v) of control mice, in mice brain with lesioned areas (injured) and treated intravenously with control adMSCs and with donor brain WT or KO PCs. Nuclei were stained with DAPI (blue). Scale bar: 100 µm. Right panels show bigger magnification of double positive cells. ( B ) Representative images showing co-localization of puncta pattern expression of LAMP-2A protein (in green) with a PC marker, PDGFRβ (in red), analyzed in host PCs of microvessels (v) of control mice, in mice brain with lesioned areas and treated intravenously with control adMSCs and with donor brain WT or KO PCs. Right panels show bigger magnification of double positive cells. Nuclei were stained with DAPI (blue). Scale bars: 100 µm. (C) Representative images showing co-localization of puncta pattern expression of LAMP-2A protein (in green) with a PC marker, CD146 (in red), analyzed in host PCs of microvessels (v) of control mice, in mice brain with lesioned areas and treated intravenously with donor brain PC. Right panels show bigger magnification of double positive cells (Scale bars: 20 µm). Nuclei were stained with DAPI (blue). Scale bars: 100 µm. ( D ) Relative quantification of percentage of PCs in brain microvessels expressing the PC marker α -SMA (n = 40 α -SMA + PCs per condition), PDGFRβ (n = 20 PDGFRβ + PCs per condition), or CD146 (n = 35 CD146 + PCs per condition) and the CMA receptor LAMP-2A (PC/LAMP-2A +/+ ) over total PCs. All data represent mean ± SD obtained from at least, three experiments represented as dots, independently; * p < 0.05; ** p < 0.01; *** p < 0.001; ns indicates no statistical significance (ANOVA with Tukey’s post-test). (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)
Article Snippet: For fluorescent double labelling, mouse anti-alpha-smooth muscle actin (α-SMA; Abcam, ab7817), goat anti-platelet derived growth factor receptor beta (PDGFRβ; R&D Systems, BAF1042), or rat CD146-APC (Miltenyi Biotec, 130–118-408) antibodies were used in combination with rabbit anti-LAMP-2A (Invitrogen, 51–2200) antibody.
Techniques: Expressing, Marker, Control, Staining, Quantitative Proteomics