Figure 6.The effect of aging and 753b treatment on gene expression of key markers of cellular senescence in mouse disc tissue. Shown are the RT-PCR results for the cell cycle regulator Cdkn2a for p16INK4 (A), and the SASP factors IL-6 (B), IL-8 (C) and TNFa (D). n=5/group (each run in triplicate).