Characterization of miR-200 family members as blood biomarkers for human and laying hen ovarian cancer

Author:

Choi Pui-Wah,Bahrampour Abbas,Ng Shu-Kay,Liu Sze Kei,Qiu Wei,Xie Fang,Kuo Winston Patrick,Kwong Joseph,Hales Karen H.,Hales Dale B.,Wong Kwong-Kwok,Norwitz Errol R.,Chow Chun Kin,Berkowitz Ross S.,Ng Shu-Wing

Abstract

AbstractMicroRNA-200 (miR-200) family is highly expressed in ovarian cancer. We evaluated the levels of family members relative to the internal control miR-103a in ovarian cancer and control blood specimens collected from American and Hong Kong Chinese institutions, as well as from a laying hen spontaneous ovarian cancer model. The levels of miR-200a, miR-200b and miR-200c were significantly elevated in all human cancer versus all control blood samples. Further analyses showed significantly higher miR-200 levels in Chinese control (except miR-429) and cancer (except miR-200a and miR141) samples than their respective American counterparts. Subtype-specific analysis showed that miR-200b had an overall elevated level in serous cancer compared with controls, whereas miR-429 was significantly elevated in clear cell and endometrioid cancer versus controls. MiR-429 was also significantly elevated in cancer versus control in laying hen plasma samples, consistent with the fact that endometrioid tumor is the prevalent type in this species. A neural network model consisting of miR-200a/200b/429/141 showed an area under the curve (AUC) value of 0.904 for American ovarian cancer prediction, whereas a model consisting of miR-200b/200c/429/141 showed an AUC value of 0.901 for Chinese women. Hence, miR-200 is informative as blood biomarkers for both human and laying hen ovarian cancer.

Publisher

Springer Science and Business Media LLC

Subject

Multidisciplinary

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