A number of studies have shown that retinoic acid (RA) is a very effective growth suppressor of human ovarian carcinoma cells when administered either alone or in combination with other differentiation inducing agents. However, no information exists concerning the mechanism by which RA acts. As a result, it is difficult to design an optimal therapeutic strategy involving RA. Without such an optimal regimen, it is difficult to accurately access the usefulness of this well-established anti-cancer agent for treatment of ovarian carcinoma. In order to solve this problem, we intend to elucidate the precise role of the nuclear retinoic acid receptors in mediating the growth inhibitory response of human ovarian carcinoma cells to retinoic acid (RA). In addition, we wish to identify genes whose transcription is altered by retinoic acid activation of the nuclear retinoic acid receptors and retinoid-X-receptors. Since such genes would most likely play an important role in regulating ovarian carcinoma cell growth, they would represent excellent molecular markers for both diagnosis of ovarian carcinoma as well as indicators of successful systemic therapy. Finally, we plan to use the knowledge obtained about the mechanism of RA growth suppression to conduct a clinical trial to directly test and monitor the efficacy of using retinoids in the treatment of ovarian cancer.

Agency
National Institute of Health (NIH)
Institute
National Cancer Institute (NCI)
Type
Research Project (R01)
Project #
5R01CA064945-03
Application #
2107701
Study Section
Special Emphasis Panel (SRC (72))
Project Start
1994-08-01
Project End
1998-05-31
Budget Start
1996-06-01
Budget End
1996-06-02
Support Year
3
Fiscal Year
1996
Total Cost
Indirect Cost
Name
Temple University
Department
Microbiology/Immun/Virology
Type
Schools of Medicine
DUNS #
City
Philadelphia
State
PA
Country
United States
Zip Code
19122
Purev, Enkhtsetseg; Soprano, Dianne R; Soprano, Kenneth J (2011) PP2A interaction with Rb2/p130 mediates translocation of Rb2/p130 into the nucleus in all-trans retinoic acid-treated ovarian carcinoma cells. J Cell Physiol 226:1027-34
Acquafreda, Thais; Nunes, Fabio Daumas; Soprano, Dianne Robert et al. (2010) Expression of homeobox genes in oral squamous cell carcinoma cell lines treated with all-trans retinoic acid. J Cell Biochem 111:1437-44
Zhao, Jianhua; Zhang, Zhenping; Vucetic, Zivjena et al. (2009) HACE1: A novel repressor of RAR transcriptional activity. J Cell Biochem 107:482-93
Fields, Anthonise Louis; Soprano, Dianne Robert; Soprano, Kenneth J (2008) Characterization of alterations of Rb2/p130 tumor suppressor in all-trans-retinoic acid resistant SK-OV3 ovarian carcinoma cells. J Cell Physiol 217:77-85
Radu, Maria; Soprano, Dianne R; Soprano, Kenneth J (2008) S10 phosphorylation of p27 mediates atRA induced growth arrest in ovarian carcinoma cell lines. J Cell Physiol 217:558-68
Fields, Anthonise Louis; Soprano, Dianne Robert; Soprano, Kenneth J (2007) Retinoids in biological control and cancer. J Cell Biochem 102:886-98
Ravikumar, Sharada; Perez-Liz, Georgina; Del Vale, Luis et al. (2007) Insulin receptor substrate-1 is an important mediator of ovarian cancer cell growth suppression by all-trans retinoic acid. Cancer Res 67:9266-75
Jiang, Tianying; Soprano, Dianne Robert; Soprano, Kenneth J (2007) GADD45A is a mediator of CD437 induced apoptosis in ovarian carcinoma cells. J Cell Physiol 212:771-9
Purev, Enkhtsetseg; Giordano, Antonio; Soprano, Dianne Robert et al. (2006) Interaction of PP2A catalytic subunit with Rb2/p130 is required for all-trans retinoic acid suppression of ovarian carcinoma cell growth. J Cell Physiol 206:495-502
Soprano, K J; Purev, E; Vuocolo, S et al. (2006) Rb2/p130 and protein phosphatase 2A: key mediators of ovarian carcinoma cell growth suppression by all-trans retinoic acid. Oncogene 25:5315-25

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