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Defining Fallopian-tube Derived miRNA Cancer Signatures

ABSTRACT: Defining Fallopian-tube Derived miRNA Cancer Signatures

PROVIDER: PRJNA522311 | ENA |

REPOSITORIES: ENA

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Defining Fallopian-tube Derived miRNA Cancer Signatures

Project description:This study characterizes changes in miRNA signatures in fallopian-tube derived cancer models.

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Defining fallopian tube-derived miRNA cancer signatures.

Project description:BACKGROUND:MicroRNAs have recently emerged as promising circulating biomarkers in diverse cancer types, including ovarian cancer. We utilized conditional, doxycycline-induced fallopian tube (FT)-derived cancer models to identify changes in miRNA expression in tumors and plasma, and further validated the murine findings in high-grade ovarian cancer patient samples. METHODS:We analyzed 566 biologically informative miRNAs in doxycycline-induced FT and metastatic tumors as well as plasma samples derived from murine models bearing inactivation of Brca, Tp53, and Pten genes. We identified miRNAs that showed a consistent pattern of dysregulated expression and validated our results in human patient serum samples. RESULTS:We identified six miRNAs that were significantly dysregulated in doxycycline-induced FTs (P < .05) and 130 miRNAs differentially regulated in metastases compared to normal fallopian tissues (P < .05). Furthermore, we validated miR-21a-5p, miR-146a-5p, and miR-126a-3p as dysregulated in both murine doxycycline-induced FT and metastatic tumors, as well as in murine plasma and patient serum samples. CONCLUSIONS:In summary, we identified changes in miRNA expression that potentially accompany tumor development in murine models driven by commonly found genetic alterations in cancer patients. Further studies are required to test both the function of these miRNAs in driving the disease and their utility as potential biomarkers for diagnosis and/or disease progression.

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