1. Cervicovaginal Metabolome and Tumor Characteristics for Endometrial Cancer Detection and Risk Stratification.
- Author
-
Lorentzen GM, Łaniewski P, Cui H, Mahnert ND, Mourad J, Borst MP, Willmott L, Chase DM, Roe DJ, and Herbst-Kralovetz MM
- Subjects
- Humans, Female, Middle Aged, Aged, Metabolomics methods, Prognosis, Risk Assessment methods, Cervix Uteri pathology, Cervix Uteri metabolism, Adult, Carcinoma, Endometrioid diagnosis, Carcinoma, Endometrioid metabolism, Carcinoma, Endometrioid pathology, Endometrial Neoplasms diagnosis, Endometrial Neoplasms metabolism, Endometrial Neoplasms pathology, Metabolome, Vagina pathology, Vagina metabolism, Biomarkers, Tumor metabolism
- Abstract
Purpose: Endometrial cancer is highly prevalent and lacking noninvasive diagnostic techniques. Diagnosis depends on histological investigation of biopsy samples. Serum biomarkers for endometrial cancer have lacked sensitivity and specificity. The objective of this study was to investigate the cervicovaginal environment to improve the understanding of metabolic reprogramming related to endometrial cancer and identify potential biomarker candidates for noninvasive diagnostic and prognostic tests., Experimental Design: Cervicovaginal lavages were collected from 192 participants with endometrial cancer (n = 66) and non-malignant conditions (n = 108), and global untargeted metabolomics was performed. Using the metabolite data (n = 920), we completed a multivariate biomarker discovery analysis., Results: We analyzed grade 1/2 endometrioid carcinoma (n = 53) and other endometrial cancer subtypes (n = 13) to identify shared and unique metabolic signatures between the subtypes. When compared to non-malignant conditions, downregulation of proline (P < 0.0001), tryptophan (P < 0.0001), and glutamate (P < 0.0001) was found among both endometrial cancer groups, relating to key hallmarks of cancer including immune suppression and redox balance. Upregulation (q < 0.05) of sphingolipids, fatty acids, and glycerophospholipids was observed in endometrial cancer in a type-specific manner. Furthermore, cervicovaginal metabolites related to tumor characteristics, including tumor size and myometrial invasion., Conclusions: Our findings provide insights into understanding the endometrial cancer metabolic landscape and improvement in diagnosis. The metabolic dysregulation described in this article linked specific metabolites and pathophysiological mechanisms including cellular proliferation, energy supply, and invasion of neighboring tissues. Furthermore, cervicovaginal metabolite levels related to tumor characteristics, which are used for risk stratification. Overall, development of noninvasive diagnostics can improve both the acceptability and accessibility of diagnosis., (©2024 The Authors; Published by the American Association for Cancer Research.)
- Published
- 2024
- Full Text
- View/download PDF