Abstract

Purpose: SIRT6 is a nuclear localized, NAD+ dependent histone deacetylase that regulates many age-associated processes, including longevity. Our recently published data indicates that active SIRT6 is a critical regulator of cartilage redox balance by increasing antioxidant levels (Prx1, Srx, Nrf2) and decreasing the levels of the pro-oxidant, TXNIP. Importantly, our data also demonstrates that SIRT6 activity declines with age. To build on these findings in vivo, this study aimed to define the effect of Sirt6 loss on the development of DMM-induced OA in mice.

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