title: Proton magnetic resonance metabolomic characterization of ovarian serous carcinoma effusions: chemotherapy-related effects and comparison with malignant mesothelioma and breast carcinoma.
abstract: Malignant serous effusions are a common manifestation of advanced cancer, associated with significant morbidity and mortality. The aim of this study was to identify the metabolic differences between ovarian serous carcinoma effusions obtained pre- and post-chemotherapy, as well as to compare ovarian carcinoma (OC) effusions with breast carcinoma and malignant mesothelioma specimens. The supernatants of 115 effusion samples were analyzed by high-resolution magnetic resonance spectroscopy in vitro and multivariate analysis. The samples comprised pleural and peritoneal effusions from 95 OC, 10 breast carcinomas, and 10 malignant mesotheliomas. Among the OC, 8 were paired peritoneal specimens obtained pre- and post-chemotherapy from the same patient. OC had elevated levels of ketones (aceto-acetate and β-hydroxybutyrate) and lactate compared to malignant mesotheliomas and breast carcinomas, whereas the latter had more glucose, alanine, and pyruvate. Multivariate analysis of paired effusions in OC showed a significant increase in glucose and lipid levels in the post-treatment spectra (P = .039). Magnetic resonance spectroscopy is a promising technique for comprehensive and comparative studies of metabolites in malignant serous effusions, and our study shows that small metabolites associated with effusions might improve our understanding of tumor biology and disease progression and has diagnostic potential in this differential diagnosis.
authors: Dept. of Circulation and Medical Imaging, Faculty of Medicine, Norwegian University of Science and Technology, Postbox 8905, 7491 Trondheim, Norway. muhammad.r.vettukattil@ntnu.no
authors: Riyas
authors: R
authors: Vettukattil
authors: Thea Eline
authors: TE
authors: Hetland
authors: Vivi Ann
authors: VA
authors: Flørenes
authors: Janne
authors: J
authors: Kærn
authors: Ben
authors: B
authors: Davidson
authors: Tone F
authors: TF
authors: Bathen
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000970:Antineoplastic Agents / Q000627:therapeutic use; D001202:Ascitic Fluid / Q000737:chemistry / Q000378:metabolism / Q000473:pathology*; D014408:Biomarkers, Tumor / Q000378:metabolism; D001943:Breast Neoplasms / Q000188:drug therapy / Q000378:metabolism / Q000473:pathology*; D018284:Cystadenocarcinoma, Serous / Q000188:drug therapy / Q000378:metabolism / Q000473:pathology*; D005260:Female; D005947:Glucose / Q000032:analysis / Q000378:metabolism; D006801:Humans; D008175:Lung Neoplasms / Q000188:drug therapy / Q000378:metabolism / Q000473:pathology*; D009682:Magnetic Resonance Spectroscopy; D008654:Mesothelioma / Q000188:drug therapy / Q000378:metabolism / Q000473:pathology*; D000086002:Mesothelioma, Malignant; D055432:Metabolomics; D008875:Middle Aged; D010051:Ovarian Neoplasms / Q000188:drug therapy / Q000378:metabolism / Q000473:pathology*; D010996:Pleural Effusion / Q000378:metabolism / Q000473:pathology*; D011522:Protons
chemical_list: D000970:Antineoplastic Agents; D014408:Biomarkers, Tumor; D011522:Protons; D005947:Glucose
keywords: Biomarkers; Chemotherapy; Differential diagnosis; Magnetic resonance spectroscopy; Malignant effusions; Metabolomics