Identification of pathway-based recurrence-associated signatures in optimally debulked patients with serous ovarian cancer

Journal of Cellular Biochemistry
Kui DengKang Li

Abstract

Serous ovarian cancer (SOC) is the most common form of the histological subtype of epithelial ovarian cancer, with the worst clinical outcome. Despite improvements in surgery and chemotherapy, most patients with SOC experience recurrence within 12-18 months of first-line treatment. Current studies are unable to robustly predict the recurrence of SOC, and more accurate predictive models are urgently required. We have, therefore, developed a novel pathway-structured model to predict the recurrence of SOC. We trained the model on a set of 333 patients and validated it in 3 diversified validation datasets of 403 patients. Genes significantly associated with recurrence within each pathway were identified using a Cox proportional hazards model based on LASSO estimation in the training dataset. Next, a pathway-structured scoring matrix was obtained after computation of the prognostic score for each pathway by fitting to the Cox proportional hazards model. With the pathway-structure scoring matrix as an input, the pathway-based recurrent signatures were identified using the Cox proportional hazards model based on LASSO estimation and the significant pathway-based signatures were externally validated in 3 independent datasets. Meanwhile...Continue Reading

Citations

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Related Concepts

Standard of Care
Study
Pathogenic Aspects
Biochemical Pathway
Pathogenesis
First-Line Therapy
Genes
Epithelial Ovarian Cancer
Ovarian Neoplasm
Recurrent Malignant Neoplasm

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