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- W2314446385 abstract "Proceedings: AACR 103rd Annual Meeting 2012‐‐ Mar 31‐Apr 4, 2012; Chicago, ILOvarian cancer is the most lethal gynecologic malignancy because the vast majority of cases are detected in late stage, a finding that has thwarted attempts to understand the pathogenesis and cell-of-origin of this disease. The traditional view of epithelial ovarian pathogenesis asserts that all tumor subtypes share a common origin in the ovarian surface epithelium (OSE). There is robust data to support the OSE as the site of origin for many ovarian tumors, including low-grade carcinomas and borderline tumors. However, the pathogenesis of high-grade serous ovarian carcinoma, the most common type of ovarian cancer, continued to defy explanation by the OSE model. More recent studies suggested that the fallopian tube epithelium (FTE), rather than the OSE, may be the site-of-origin for a majority of pelvic serous carcinomas (PSC, defined as ovarian, peritoneal and tubal high grade serous carcinomas). We show here that the FTE can be site of origin for PSC by genetically engineering a mouse model that specifically targets the FT secretory cell with defined genetic alterations that are characteristic of human PSC. These mice develop tubal intraepithelial serous carcinomas, a precursor to PSC, that are morphologically and immunophenotypically similar to the lesions described in human patients. Furthermore, these intraepithelial lesions progress to widespread peritoneal disease that recapitulates the presentation of high-grade PSC in women. The tumors express common serous markers such as P53, αH2A.X, PAX8 and CA-125. Taken together our model is the first fully genetically engineered mouse model that truly recapitulates human serous carcinoma pathogenesis. Our model serves as proof-of-concept that the FTE can be site-of-origin to PSC.Citation Format: {Authors}. {Abstract title} [abstract]. In: Proceedings of the 103rd Annual Meeting of the American Association for Cancer Research; 2012 Mar 31-Apr 4; Chicago, IL. Philadelphia (PA): AACR; Cancer Res 2012;72(8 Suppl):Abstract nr 3292. doi:1538-7445.AM2012-3292" @default.
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- W2314446385 date "2012-04-15" @default.
- W2314446385 modified "2023-09-25" @default.
- W2314446385 title "Abstract 3292: A genetically engineered mouse model for high grade serous “ovarian” carcinoma arising in the fallopian tube" @default.
- W2314446385 doi "https://doi.org/10.1158/1538-7445.am2012-3292" @default.
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