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J Cancer 2016; 7(13):1812-1814. doi:10.7150/jca.16331 This issue Cite

Short Research Communication

Total PC Activity Is Increased in Uterine Lavage of Post-Menopausal Endometrial but Not Ovarian Cancer Patients

Sophea Heng^1,2,3, Andrew N. Stephens^2,4,6, Tom W. Jobling^5,6, Guiying Nie^1,2,3✉

1. Implantation and Placental Development Laboratory, Centre for Reproductive Health, Hudson Institute of Medical Research, Clayton, Victoria, 3168, Australia;
2. Department of Molecular and Translational Sciences, Monash University, Clayton, Victoria, 3800, Australia;
3. Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria, 3800, Australia;
4. Centre for Cancer Research, Hudson Institute of Medical Research, Clayton, Victoria, 3168, Australia;
5. Department of Obstetrics and Gynaecology, Monash University, Clayton, Victoria, Australia;
6. Epworth Research Institute, Epworth HealthCare, Richmond, Victoria, Australia.

✉ Corresponding author: Guiying Nie, Hudson Institute of Medical Research, 27-31 Wright Street, Clayton, VIC 3168, Australia. Phone: +61 3 9594 4380 Fax: +61 3 9594 6125 Email: guiying.nieorg.au.

Abstract

Endometrial and ovarian cancers are two most common cancers affecting women in their post-menopausal years. To date, there are no simple biochemical tests to detect these cancers at early stages. Our previous study has demonstrated that the activity of total proprotein convertases (PCs) is significantly increased in uterine lavage at all stages of endometrial cancer, suggesting uterine lavage which can be obtained relatively non-invasively may provide a simple tool for the detection of endometrial cancer. However, uterine lavage may also contain ovarian-derived factors, and PCs are also reported to be up-regulated in ovarian cancer. In this study we determined whether increases in uterine lavage PC activity are specific to endometrial cancer or are also associated with ovarian cancer. PC activity was detected in all uterine lavages examined but no difference was found between women with and without ovarian cancer. On the other hand, the PC activity was significantly higher in post-menopausal endometrial cancer patients, consistent with our previous report. These results suggest that measuring total PC activity in uterine lavage is a useful tool to detect endometrial cancer specifically.

Keywords: proprotein convertase

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