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In JoVE (1)
Other Publications (1)
Articles by Amita Vaidya in JoVE
Establishing Primary Adult Fibroblast Cultures From Rodents
Andrei Seluanov, Amita Vaidya, Vera Gorbunova
Department of Biology, University of Rochester
This article describes a protocol for isolation and maintenance of primary fibroblast cultures from skin and lung tissue of wild rodents.
Other articles by Amita Vaidya on PubMed
Science (New York, N.Y.). Jun, 2011 | Pubmed ID: 21680843
Sirtuin 6 (SIRT6) is a mammalian homolog of the yeast Sir2 deacetylase. Mice deficient for SIRT6 exhibit genome instability. Here, we show that in mammalian cells subjected to oxidative stress SIRT6 is recruited to the sites of DNA double-strand breaks (DSBs) and stimulates DSB repair, through both nonhomologous end joining and homologous recombination. Our results indicate that SIRT6 physically associates with poly[adenosine diphosphate (ADP)-ribose] polymerase 1 (PARP1) and mono-ADP-ribosylates PARP1 on lysine residue 521, thereby stimulating PARP1 poly-ADP-ribosylase activity and enhancing DSB repair under oxidative stress.