Journal: Journal of Nanobiotechnology

Article Title: Supramolecular delivery of senolytics enables targeted anti-senescence therapy and accelerated fracture healing

doi: 10.1186/s12951-026-04138-2

Figure Lengend Snippet: Asp 10 SAC4A enables hypoxia-activated senolysis and promotes osteogenic differentiation in vitro. A ) Heatmap of combination index (CI) values at different D: Q ratios and fraction affected (Fa) levels, showing synergistic effects of Dasatinib and Quercetin (DQ). B ) Cell viability curves of normal BMSCs, senescent BMSCs (Sn-BMSCs), and Sn-BMSCs under hypoxia treated with vehicle, free DQ, Asp 10 SAC4A, or DQ@Asp 10 SAC4A. C ) Representative SA-β-Gal staining images of senescent cells treated with different formulations under normoxic and hypoxic conditions, and quantification of SA-β-Gal-positive area (%) ( n = 4/group). Scale bar: 100 μm. D–F ) Representative Western blot images ( D ) and quantitative analyses ( E , F ) of senescence markers P16 and P21 expression in different treatment groups ( n = 3/group). G ) Representative alkaline phosphatase (ALP, upper panel) and Alizarin Red staining (ARS, lower panel) images demonstrating osteogenic differentiation after indicated treatments under normoxic and hypoxic conditions. H–J ) Representative Western blot images ( H ) and quantitative analyses ( I , J ) showing protein expression levels of osteogenic markers RUNX2 and osteopontin (OPN) ( n = 3/group). (Data are presented as mean ± SD; * P < 0.05, ** P < 0.01, *** P < 0.001; n = 3–4/group)

Article Snippet: Primary mouse bone marrow mesenchymal stem cells (BMSCs) were purchased from Servicebio (Catalog number STCC6011P).

Techniques: In Vitro, Staining, Western Blot, Expressing