Abstract | INTRODUCTION: We sought to identify whether the sulfatase pathway was present in ovarian cancer specimens and then to determine whether a clinical correlation existed between sulfatase activity and survival. MATERIALS AND METHODS: Enzymatic activity was assessed in advanced ovarian cancer specimens via thin layer chromatography and standardized against total protein. All enzyme activities are reported in pmol/mg protein/30 min. Kaplan Meier curves of progression-free and overall survival were constructed to compare outcomes between patients with low sulfatase activity and high sulfatase activity. Median survival rates were compared using the log-rank test for survival curves. Differences in proportions between patients with low sulfatase activity versus high sulfatase activity were compared with the z-test or chi-square analysis as appropriate. RESULTS: 37 specimens from patients with advanced stage ovarian cancer were analyzed. Enzymatic activity was detected in all specimens except one. Median progression-free survival was 23.5 months for patients with low sulfatase activity compared to 6.9 months for patients with high sulfatase activity (p=0.008). Median overall survival favored the low sulfatase group (50.8 vs. 30.6 months respectively), though statistical difference was not detected (p=0.16). No other difference in clinical characteristics between patients with high or low sulfatase activity was detected. CONCLUSIONS:
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Authors | Justin C Chura, Charles H Blomquist, Hyung S Ryu, Peter A Argenta |
Journal | Gynecologic oncology
(Gynecol Oncol)
Vol. 112
Issue 1
Pg. 205-9
(Jan 2009)
ISSN: 1095-6859 [Electronic] United States |
PMID | 18947862
(Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
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Chemical References |
- Estrogen Receptor alpha
- Estrone
- Testosterone
- Androstenedione
- Estradiol
- 17-Hydroxysteroid Dehydrogenases
- Sulfatases
- estrone sulfatase
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Topics |
- 17-Hydroxysteroid Dehydrogenases
(metabolism)
- Adult
- Aged
- Aged, 80 and over
- Androstenedione
(metabolism)
- Disease-Free Survival
- Estradiol
(metabolism)
- Estrogen Receptor alpha
(metabolism)
- Estrone
(metabolism)
- Female
- Humans
- Immunohistochemistry
- Middle Aged
- Neoplasm Staging
- Ovarian Neoplasms
(enzymology, pathology)
- Sulfatases
(metabolism)
- Testosterone
(metabolism)
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