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      1. Author :
        Goldberg, M.S.; Xing, D.; Ren, Y.; Orsulic, S.; Bhatia, S.N.; Sharp, P.A.
      2. Title :
      3. Type :
        Journal Article
      4. Year :
        2011
      5. Publication :
        Proceedings of the National Academy of Sciences of the United States of America
      6. Products :
      7. Volume :
        108
      8. Issue :
        2
      9. Page Numbers :
        N/A
      10. Research Area :
        N/A
      11. Keywords :
        brca1; Cancer; In vivo imaging (VisEn); IVIS Spectrum imaging system; mice; siRNA; vivotag-750
      12. Abstract :
        Inhibition of the DNA repair enzyme poly(ADP-ribose) polymerase 1 (PARP1) with small molecules has been shown to be an effective treatment for ovarian cancer with BRCA mutations. Here, we report the in vivo administration of siRNA to Parp1 in mouse models of ovarian cancer. A unique member of the lipid-like materials known as lipidoids is shown to deliver siRNA to disseminated murine ovarian carcinoma allograft tumors following intraperitoneal (i.p.) injection. siParp1 inhibits cell growth, primarily by induction of apoptosis, in Brca1-deficient cells both in vitro and in vivo. Additionally, the treatment extends the survival of mice bearing tumors derived from Brca1-deficient ovarian cancer cells but not from Brca1 wild-type cells, confirming the proposed mechanism of synthetic lethality. Because there are 17 members of the Parp family, the inherent complementarity of RNA affords a high level of specificity for therapeutically addressing Parp1 in the context of impaired homologous recombination.
      13. URL :
        http://www.ncbi.nlm.nih.gov/pubmed/21187397
      14. Call Number :
        PKI @ user @ 8448
      15. Serial :
        4805