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| Content Provider | PubMed Central |
|---|---|
| Author | Fishel, Melissa L. He, Ying Reed, April M. Helen, Chin-sinex Hutchins, Gary D. Mendonca, Marc S. Kelley, Mark R. |
| Abstract | Apurinic endonuclease 1 / redox factor-1 (Ape1/Ref-1 or Ape1) is an essential protein with two distinct functions. It is a DNA repair enzyme in the base excision repair (BER) pathway and a reduction-oxidation (redox) signaling factor maintaining transcription factors in an active reduced state. Our laboratory previously demonstrated that Ape1 is overexpressed in ovarian cancer and potentially contributes to resistance. Therefore, we utilized siRNA technology to knockdown protein levels of Ape1 in ovarian cancer cell line, SKOV-3x. Knocking Ape1 down had dramatic effects on cell growth in vitro but was not due to an increase in apoptosis and at least partially due to an extension in transit time through S-phase. Similarly, human ovarian tumor xenografts with reduced levels of Ape1 protein demonstrated a dramatic reduction in tumor volume (p<0.01) and also statistically significant (p=0.02) differences in 18F-fluorodeoxyglucose (FDG) uptake indicating reduced glucose metabolism and cellular proliferation. Ape1’s role in DNA repair and redox signaling is important to our basic understanding of ovarian cancer cell growth and these findings strongly support Ape1 as a therapeutic target. |
| Related Links | http://dx.doi.org/10.1016/j.dnarep.2007.09.008 |
| Ending Page | 186 |
| Page Count | 10 |
| Starting Page | 177 |
| File Format | |
| ISSN | 15687864 |
| Journal | DNA repair |
| Issue Number | 2 |
| Volume Number | 7 |
| Language | English |
| Publisher Date | 2008-02-01 |
| Access Restriction | Open |
| Subject Keyword | Cell Biology Biochemistry Molecular Biology Research in Higher Education |
| Content Type | Text |
| Resource Type | Article |
| Subject | Cell Biology Biochemistry Molecular Biology |
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