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Assessment of Ovarian Cancer Spheroid Attachment and Invasion of Mesothelial Cells in Real Time
Published on: May 20, 2014
High-grade ovarian serous carcinoma patients exhibit profound alterations in lipid metabolism
Elena Ioana Braicu1,2, Silvia Darb-Esfahani3,2, Wolfgang D Schmitt3
1Department of Gynecology, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany.
Abstract:
Ovarian cancer is a very severe type of disease with poor prognosis. Treatment of ovarian cancer is challenging because of the lack of tests for early detection and effective therapeutic targets. Thus, new biomarkers are needed for both diagnostics and better understanding of the cellular processes of the disease. Small molecules, consisting of metabolites or lipids, have shown emerging potential for ovarian cancer diagnostics. Here we performed comprehensive lipidomic profiling of serum and tumor tissue samples from high-grade serous ovarian cancer patients to find lipids that were altered due to cancer and also associated with progression of the disease. Ovarian cancer patients exhibited an overall reduction of most lipid classes in their serum as compared to a control group. Despite the overall reduction, there were also specific lipids showing elevation, and especially alterations in ceramide and triacylglycerol lipid species were dependent on their fatty acyl side chain composition. Several lipids showed progressive alterations in patients with more advanced disease and poorer overall survival, and outperformed CA-125 as prognostic markers. The abundance of many serum lipids correlated with their abundance in tumor tissue samples. Furthermore, we found a negative correlation of serum lipids with 3-hydroxybutyric acid, suggesting an association between decreased lipid levels and fatty acid oxidation. In conclusion, here we present a comprehensive analysis of lipid metabolism alterations in ovarian cancer patients, with clinical implications.
Insights
New research reveals significant alterations in lipid metabolism in ovarian cancer patients. Specific lipid changes in serum and tumors can serve as potential biomarkers for early detection and prognosis, outperforming current standards.
Area of Science:
- Biochemistry
- Oncology
- Metabolomics
Background:
- Ovarian cancer presents a severe health challenge with poor prognosis due to difficulties in early detection and treatment.
- The identification of novel biomarkers is crucial for improving ovarian cancer diagnostics and understanding disease mechanisms.
- Lipids and metabolites are emerging as promising candidates for ovarian cancer biomarkers.
Purpose of the Study:
- To conduct comprehensive lipidomic profiling of serum and tumor tissues from high-grade serous ovarian cancer patients.
- To identify specific lipids altered by cancer and associated with disease progression.
- To evaluate the potential of these lipids as diagnostic and prognostic markers.
Main Methods:
- Serum and tumor tissue samples from ovarian cancer patients and controls were analyzed using comprehensive lipidomic profiling.
- Lipid alterations were correlated with disease stage and patient survival.
- Serum lipid levels were compared with tumor tissue lipid abundance and 3-hydroxybutyric acid levels.
Main Results:
- Ovarian cancer patients showed a general decrease in most serum lipid classes compared to controls.
- Specific alterations in ceramide and triacylglycerol species, dependent on fatty acyl side chains, were observed.
- Several serum lipids demonstrated progressive changes with advanced disease and poorer survival, outperforming CA-125 as prognostic indicators.
- Serum lipid abundance correlated with tumor tissue lipid levels and showed a negative correlation with 3-hydroxybutyric acid.
Conclusions:
- This study presents a detailed analysis of lipid metabolism dysregulation in ovarian cancer.
- Altered lipid profiles in serum and tumors offer potential as novel biomarkers for ovarian cancer diagnostics and prognosis.
- Findings suggest a link between decreased serum lipid levels and altered fatty acid oxidation in ovarian cancer.
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