Journal: International Journal of Molecular Sciences

Article Title: Thrombospondin 1–CD47 Signalling Modulates Vascular Smooth Muscle Cell Senescence in Chronic Kidney Disease

doi: 10.3390/ijms27020755

Figure Lengend Snippet: TSP1 and indoxyl sulfate limit VSMC proliferation via CD47. hVSMC cell viability was measured by assessing reduction in tetrazolium salt sodium 3′- [1- [(phenylamino)-carbonyl]-3,4-tetrazolium]-bis(4-methoxy-6-nitro)benzene-sulfonic acid hydrate (XTT) and measuring absorbance at 450 nm in cells after 48 h treatment with ( A ) TSP1 (0, 0.2, 2.2, 5, 10 nM) ( n = 4), ( B ) TSP1 2.2 nM ± pre-treatment with anti-CD47 antibody for 30 min ( n = 6), ( C ) IS (0, 1, 10, 100, 500 µM) ( n = 4), or ( D ) IS (100, 500 µM) ± pre-treatment with anti-CD47 antibody for 30 min ( n = 4–8). All data shown are mean ± SD. * p < 0.05, ** p < 0.01, *** p < 0.001 and **** p < 0.0001 by one-way analysis of variance with Holm–Sidak post-hoc test ( A , C ) or Kruskal–Wallis test ( B , D ). Abbreviations: αCD47—anti-CD47 antibody; hVSMC—human aortic vascular smooth muscle cell; IS—indoxyl sulfate; TSP1—thrombospondin-1.

Article Snippet: Cell proliferation and senescence were measured using XTT Cell Viability Kit (#9095, Cell Signalling Technology, Danvers, MA, USA) and Mammalian β-Galactosidase Assay Kit (75707, Thermo Fisher Scientific), respectively.

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