Journal: Aging Cell
Article Title: Characterizing the SASP ‐Dependent Paracrine Spreading of Senescence Between Human Brain Cell Types
doi: 10.1111/acel.70673
Figure Lengend Snippet: Targeting SASP ligands and receptors to prevent the spreading of senescence. (A) Quantification of percentage of SA β‐gal positive astrocytes following 7‐day treatment with 100 μM BrdU (red) along with 200 μM Bindarit (pink), 50 μM ISO‐1 (blue), 200 μM ACT‐1004‐1239 (orange), or 2 μM Sitagliptin (green) ( n = 6 replicates). (B) Quantification of percentage of SA β‐gal positive microglia following 7‐day treatment with 100 μM BrdU (red) along with 200 μM Bindarit (pink), 50 μM ISO‐1 (blue), 200 μM ACT‐1004‐1239 (orange), or 2 μM Sitagliptin (green) ( n = 6 replicates). (C) Timeline showing treatment with DMSO + Bindarit CM or BrdU + Bindarit CM for 7 days. Timeline showing treatment with DMSO or 100 μM BrdU along with SASP inhibitors (ISO‐1, ACT‐1004‐1239, or Sitagliptin) for 7 days. Features of senescence were analyzed 8 days after the initial plating of cells (created with BioRender). (D) Quantification of percentage of SA β‐gal positive astrocytes following 7‐day treatment with DMSO + Bindarit CM from astrocytes (gray), BrdU + Bindarit CM from astrocytes (red), DMSO CM from astrocytes + SASP inhibitor (gray), or BrdU CM from astrocytes + SASP inhibitor (red) ( n = 4 replicates). Quantification of percentage of SA β‐gal positive astrocytes following 7‐day treatment with DMSO CM from astrocytes + Bindarit (gray) or BrdU CM from astrocytes + Bindarit (red) ( n = 4 replicates). (E) Quantification of percentage of SA β‐gal positive astrocytes following 7‐day treatment with DMSO + Bindarit CM from microglia (gray), BrdU + Bindarit CM from microglia (red), DMSO CM from microglia + SASP inhibitor (gray), or BrdU CM from microglia + SASP inhibitor (red) ( n = 4 replicates). Quantification of percentage of SA β‐gal positive astrocytes following 7‐day treatment with DMSO CM from microglia + Bindarit (gray) or BrdU CM from microglia + Bindarit (red) ( n = 4 replicates). (F) Quantification of percentage of SA β‐gal positive microglia following 7‐day treatment with DMSO + Bindarit CM from microglia (gray), BrdU + Bindarit CM from microglia (red), DMSO CM from microglia + SASP inhibitor (gray), or BrdU CM from microglia + SASP inhibitor (red) ( n = 4 replicates). Quantification of percentage of SA β‐gal positive astrocytes following 7‐day treatment with DMSO CM from microglia + Bindarit (gray) or BrdU CM from microglia + Bindarit (red) ( n = 4 replicates). (G) Quantification of percentage of SA β‐gal positive microglia following 7‐day treatment with DMSO + Bindarit CM from astrocytes (gray), BrdU + Bindarit CM from astrocytes (red), DMSO CM from astrocytes + SASP inhibitor (gray), or BrdU CM from astrocytes + SASP inhibitor (red) ( n = 4 replicates). Quantification of percentage of SA β‐gal positive astrocytes following 7‐day treatment with DMSO CM from astrocytes + Bindarit (gray) or BrdU CM from astrocytes + Bindarit (red) ( n = 4 replicates). Data analyzed by unpaired t ‐test (A, B) and two‐way ANOVA with Tukey's or Šídák's multiple comparisons test (D–G). All graphs show mean with error bars depicting standard deviation (ns, p > 0.05, * p < 0.05, ** p < 0.01, *** p < 0.001).
Article Snippet: Treatment with CXCR7 antagonist ACT‐1004‐1239 (MedChemExpress, Catalog No. HY‐142617) was utilized to prevent CXCR7‐associated communication between senescence inducers and receiving cells.
Techniques: Standard Deviation