Journal: Science Advances
Article Title: Immunometabolic resistors of aging in long-lived golden spiny mice
doi: 10.1126/sciadv.aec9991
Figure Lengend Snippet: ( A ) The correlation between clusterin expression and maximum life span in various species was analyzed using phylogenetic regression. ( B ) Plasma proteomics of multicohorts of human participants (from 21 to >100 years old) were analyzed by the SomaScan assay. ( C to P ) Eighteen-month-old male C57BL/6N mice were intraperitoneally injected with vehicle (saline) or recombinant mouse clusterin (50 μg/kg) for 2 weeks ( n = 13 per group). (C) Schematic summary for the experiments. (D and E) Health span analyses were conducted. Forelimb grip strength (D) and rotarod (E) tests. (F to I) The representative H&E and Sirius Red staining images with quantification in the gastrocnemius muscle (F), SAT (G), spleen (H), and liver (I). PT, portal vein. Scale bars, 100 μm. (J) Serum IL-1β, IL-6, and tumor necrosis factor–α (TNF-α) levels. (K) Serum monocyte chemoattractant protein-1 (MCP-1) levels. (L) qRT-PCR analysis for chronological age– and mortality-associated genes in the liver ( n = 6 per group). (M to O) Flow cytometry analysis of spleen age-associated B cells (ABCs; M), VAT AABs (N), and VAT M1- or M2-like macrophages (O) (for spleen, n = 13 per group, and for VAT, n = 10 per group). (P) Representative Western blot analysis of liver tissues ( n = 5 per group). ( Q ) Peripheral blood monocytes were isolated from healthy donors and treated with indicated doses of recombinant human clusterin for 1 hour, followed by an indicated duration of lipopolysaccharide (LPS; 1 μg/ml). IL-1β and IL-18 levels in culture supernatants were measured after 24 hours ( n = 5 per group) of LPS treatment. gf, grams-force. FSC-A, forward scatter-A. Data are presented as mean ± SEM. Two-tailed student t test (D to O) or one-way ANOVA with Tukey’s multiple comparisons test (B and Q) was performed. * P < 0.05, ** P < 0.01, and *** P < 0.001. (C): Created in BioRender. V. Dixit (2026); https://BioRender.com/m2sdy6s .
Article Snippet: For culture supernatants of human peripheral blood monocytes, human IL-1β and IL-18 Quantikine ELISA Kits (R&D Systems) were used according to the manufacturer’s instructions.
Techniques: Expressing, Clinical Proteomics, Injection, Saline, Recombinant, Staining, Quantitative RT-PCR, Flow Cytometry, Western Blot, Isolation, Two Tailed Test